Initial import

23 files changed, 15861 insertions, 0 deletions

diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h
new file mode 100644
index 000000000..c43f74c53
--- /dev/null
+++ b/drivers/tty/serial/8250/8250.h
@@ -0,0 +1,213 @@
+/*
+ *  Driver for 8250/16550-type serial ports
+ *
+ *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
+ *
+ *  Copyright (C) 2001 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/serial_8250.h>
+#include <linux/serial_reg.h>
+#include <linux/dmaengine.h>
+
+struct uart_8250_dma {
+	int (*tx_dma)(struct uart_8250_port *p);
+	int (*rx_dma)(struct uart_8250_port *p, unsigned int iir);
+
+	/* Filter function */
+	dma_filter_fn		fn;
+	/* Parameter to the filter function */
+	void			*rx_param;
+	void			*tx_param;
+
+	struct dma_slave_config	rxconf;
+	struct dma_slave_config	txconf;
+
+	struct dma_chan		*rxchan;
+	struct dma_chan		*txchan;
+
+	dma_addr_t		rx_addr;
+	dma_addr_t		tx_addr;
+
+	dma_cookie_t		rx_cookie;
+	dma_cookie_t		tx_cookie;
+
+	void			*rx_buf;
+
+	size_t			rx_size;
+	size_t			tx_size;
+
+	unsigned char		tx_running:1;
+	unsigned char		tx_err: 1;
+	unsigned char		rx_running:1;
+};
+
+struct old_serial_port {
+	unsigned int uart;
+	unsigned int baud_base;
+	unsigned int port;
+	unsigned int irq;
+	upf_t        flags;
+	unsigned char hub6;
+	unsigned char io_type;
+	unsigned char __iomem *iomem_base;
+	unsigned short iomem_reg_shift;
+	unsigned long irqflags;
+};
+
+struct serial8250_config {
+	const char	*name;
+	unsigned short	fifo_size;
+	unsigned short	tx_loadsz;
+	unsigned char	fcr;
+	unsigned char	rxtrig_bytes[UART_FCR_R_TRIG_MAX_STATE];
+	unsigned int	flags;
+};
+
+#define UART_CAP_FIFO	(1 << 8)	/* UART has FIFO */
+#define UART_CAP_EFR	(1 << 9)	/* UART has EFR */
+#define UART_CAP_SLEEP	(1 << 10)	/* UART has IER sleep */
+#define UART_CAP_AFE	(1 << 11)	/* MCR-based hw flow control */
+#define UART_CAP_UUE	(1 << 12)	/* UART needs IER bit 6 set (Xscale) */
+#define UART_CAP_RTOIE	(1 << 13)	/* UART needs IER bit 4 set (Xscale, Tegra) */
+#define UART_CAP_HFIFO	(1 << 14)	/* UART has a "hidden" FIFO */
+#define UART_CAP_RPM	(1 << 15)	/* Runtime PM is active while idle */
+
+#define UART_BUG_QUOT	(1 << 0)	/* UART has buggy quot LSB */
+#define UART_BUG_TXEN	(1 << 1)	/* UART has buggy TX IIR status */
+#define UART_BUG_NOMSR	(1 << 2)	/* UART has buggy MSR status bits (Au1x00) */
+#define UART_BUG_THRE	(1 << 3)	/* UART has buggy THRE reassertion */
+#define UART_BUG_PARITY	(1 << 4)	/* UART mishandles parity if FIFO enabled */
+
+#define HIGH_BITS_OFFSET ((sizeof(long)-sizeof(int))*8)
+
+#ifdef CONFIG_SERIAL_8250_SHARE_IRQ
+#define SERIAL8250_SHARE_IRQS 1
+#else
+#define SERIAL8250_SHARE_IRQS 0
+#endif
+
+static inline int serial_in(struct uart_8250_port *up, int offset)
+{
+	return up->port.serial_in(&up->port, offset);
+}
+
+static inline void serial_out(struct uart_8250_port *up, int offset, int value)
+{
+	up->port.serial_out(&up->port, offset, value);
+}
+
+void serial8250_clear_and_reinit_fifos(struct uart_8250_port *p);
+
+static inline int serial_dl_read(struct uart_8250_port *up)
+{
+	return up->dl_read(up);
+}
+
+static inline void serial_dl_write(struct uart_8250_port *up, int value)
+{
+	up->dl_write(up, value);
+}
+
+struct uart_8250_port *serial8250_get_port(int line);
+void serial8250_rpm_get(struct uart_8250_port *p);
+void serial8250_rpm_put(struct uart_8250_port *p);
+
+#if defined(__alpha__) && !defined(CONFIG_PCI)
+/*
+ * Digital did something really horribly wrong with the OUT1 and OUT2
+ * lines on at least some ALPHA's.  The failure mode is that if either
+ * is cleared, the machine locks up with endless interrupts.
+ */
+#define ALPHA_KLUDGE_MCR  (UART_MCR_OUT2 | UART_MCR_OUT1)
+#else
+#define ALPHA_KLUDGE_MCR 0
+#endif
+
+#ifdef CONFIG_SERIAL_8250_PNP
+int serial8250_pnp_init(void);
+void serial8250_pnp_exit(void);
+#else
+static inline int serial8250_pnp_init(void) { return 0; }
+static inline void serial8250_pnp_exit(void) { }
+#endif
+
+#ifdef CONFIG_ARCH_OMAP1
+static inline int is_omap1_8250(struct uart_8250_port *pt)
+{
+	int res;
+
+	switch (pt->port.mapbase) {
+	case OMAP1_UART1_BASE:
+	case OMAP1_UART2_BASE:
+	case OMAP1_UART3_BASE:
+		res = 1;
+		break;
+	default:
+		res = 0;
+		break;
+	}
+
+	return res;
+}
+
+static inline int is_omap1510_8250(struct uart_8250_port *pt)
+{
+	if (!cpu_is_omap1510())
+		return 0;
+
+	return is_omap1_8250(pt);
+}
+#else
+static inline int is_omap1_8250(struct uart_8250_port *pt)
+{
+	return 0;
+}
+static inline int is_omap1510_8250(struct uart_8250_port *pt)
+{
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_SERIAL_8250_DMA
+extern int serial8250_tx_dma(struct uart_8250_port *);
+extern int serial8250_rx_dma(struct uart_8250_port *, unsigned int iir);
+extern int serial8250_request_dma(struct uart_8250_port *);
+extern void serial8250_release_dma(struct uart_8250_port *);
+#else
+static inline int serial8250_tx_dma(struct uart_8250_port *p)
+{
+	return -1;
+}
+static inline int serial8250_rx_dma(struct uart_8250_port *p, unsigned int iir)
+{
+	return -1;
+}
+static inline int serial8250_request_dma(struct uart_8250_port *p)
+{
+	return -1;
+}
+static inline void serial8250_release_dma(struct uart_8250_port *p) { }
+#endif
+
+static inline int ns16550a_goto_highspeed(struct uart_8250_port *up)
+{
+	unsigned char status;
+
+	status = serial_in(up, 0x04); /* EXCR2 */
+#define PRESL(x) ((x) & 0x30)
+	if (PRESL(status) == 0x10) {
+		/* already in high speed mode */
+		return 0;
+	} else {
+		status &= ~0xB0; /* Disable LOCK, mask out PRESL[01] */
+		status |= 0x10;  /* 1.625 divisor for baud_base --> 921600 */
+		serial_out(up, 0x04, status);
+	}
+	return 1;
+}
diff --git a/drivers/tty/serial/8250/8250_accent.c b/drivers/tty/serial/8250/8250_accent.c
new file mode 100644
index 000000000..34b51c651
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_accent.c
@@ -0,0 +1,45 @@
+/*
+ *  Copyright (C) 2005 Russell King.
+ *  Data taken from include/asm-i386/serial.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+
+#define PORT(_base,_irq)				\
+	{						\
+		.iobase		= _base,		\
+		.irq		= _irq,			\
+		.uartclk	= 1843200,		\
+		.iotype		= UPIO_PORT,		\
+		.flags		= UPF_BOOT_AUTOCONF,	\
+	}
+
+static struct plat_serial8250_port accent_data[] = {
+	PORT(0x330, 4),
+	PORT(0x338, 4),
+	{ },
+};
+
+static struct platform_device accent_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_ACCENT,
+	.dev			= {
+		.platform_data	= accent_data,
+	},
+};
+
+static int __init accent_init(void)
+{
+	return platform_device_register(&accent_device);
+}
+
+module_init(accent_init);
+
+MODULE_AUTHOR("Russell King");
+MODULE_DESCRIPTION("8250 serial probe module for Accent Async cards");
+MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/8250/8250_acorn.c
new file mode 100644
index 000000000..549aa07c0
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -0,0 +1,141 @@
+/*
+ *  linux/drivers/serial/acorn.c
+ *
+ *  Copyright (C) 1996-2003 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/tty.h>
+#include <linux/serial_core.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/init.h>
+
+#include <asm/io.h>
+#include <asm/ecard.h>
+#include <asm/string.h>
+
+#include "8250.h"
+
+#define MAX_PORTS	3
+
+struct serial_card_type {
+	unsigned int	num_ports;
+	unsigned int	uartclk;
+	unsigned int	type;
+	unsigned int	offset[MAX_PORTS];
+};
+
+struct serial_card_info {
+	unsigned int	num_ports;
+	int		ports[MAX_PORTS];
+	void __iomem *vaddr;
+};
+
+static int
+serial_card_probe(struct expansion_card *ec, const struct ecard_id *id)
+{
+	struct serial_card_info *info;
+	struct serial_card_type *type = id->data;
+	struct uart_8250_port uart;
+	unsigned long bus_addr;
+	unsigned int i;
+
+	info = kzalloc(sizeof(struct serial_card_info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	info->num_ports = type->num_ports;
+
+	bus_addr = ecard_resource_start(ec, type->type);
+	info->vaddr = ecardm_iomap(ec, type->type, 0, 0);
+	if (!info->vaddr) {
+		kfree(info);
+		return -ENOMEM;
+	}
+
+	ecard_set_drvdata(ec, info);
+
+	memset(&uart, 0, sizeof(struct uart_8250_port));
+	uart.port.irq	= ec->irq;
+	uart.port.flags	= UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
+	uart.port.uartclk	= type->uartclk;
+	uart.port.iotype	= UPIO_MEM;
+	uart.port.regshift	= 2;
+	uart.port.dev	= &ec->dev;
+
+	for (i = 0; i < info->num_ports; i ++) {
+		uart.port.membase = info->vaddr + type->offset[i];
+		uart.port.mapbase = bus_addr + type->offset[i];
+
+		info->ports[i] = serial8250_register_8250_port(&uart);
+	}
+
+	return 0;
+}
+
+static void serial_card_remove(struct expansion_card *ec)
+{
+	struct serial_card_info *info = ecard_get_drvdata(ec);
+	int i;
+
+	ecard_set_drvdata(ec, NULL);
+
+	for (i = 0; i < info->num_ports; i++)
+		if (info->ports[i] > 0)
+			serial8250_unregister_port(info->ports[i]);
+
+	kfree(info);
+}
+
+static struct serial_card_type atomwide_type = {
+	.num_ports	= 3,
+	.uartclk	= 7372800,
+	.type		= ECARD_RES_IOCSLOW,
+	.offset		= { 0x2800, 0x2400, 0x2000 },
+};
+
+static struct serial_card_type serport_type = {
+	.num_ports	= 2,
+	.uartclk	= 3686400,
+	.type		= ECARD_RES_IOCSLOW,
+	.offset		= { 0x2000, 0x2020 },
+};
+
+static const struct ecard_id serial_cids[] = {
+	{ MANU_ATOMWIDE,	PROD_ATOMWIDE_3PSERIAL,	&atomwide_type	},
+	{ MANU_SERPORT,		PROD_SERPORT_DSPORT,	&serport_type	},
+	{ 0xffff, 0xffff }
+};
+
+static struct ecard_driver serial_card_driver = {
+	.probe		= serial_card_probe,
+	.remove		= serial_card_remove,
+	.id_table	= serial_cids,
+	.drv = {
+		.name	= "8250_acorn",
+	},
+};
+
+static int __init serial_card_init(void)
+{
+	return ecard_register_driver(&serial_card_driver);
+}
+
+static void __exit serial_card_exit(void)
+{
+	ecard_remove_driver(&serial_card_driver);
+}
+
+MODULE_AUTHOR("Russell King");
+MODULE_DESCRIPTION("Acorn 8250-compatible serial port expansion card driver");
+MODULE_LICENSE("GPL");
+
+module_init(serial_card_init);
+module_exit(serial_card_exit);
diff --git a/drivers/tty/serial/8250/8250_boca.c b/drivers/tty/serial/8250/8250_boca.c
new file mode 100644
index 000000000..d125dc107
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_boca.c
@@ -0,0 +1,59 @@
+/*
+ *  Copyright (C) 2005 Russell King.
+ *  Data taken from include/asm-i386/serial.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+
+#define PORT(_base,_irq)				\
+	{						\
+		.iobase		= _base,		\
+		.irq		= _irq,			\
+		.uartclk	= 1843200,		\
+		.iotype		= UPIO_PORT,		\
+		.flags		= UPF_BOOT_AUTOCONF,	\
+	}
+
+static struct plat_serial8250_port boca_data[] = {
+	PORT(0x100, 12),
+	PORT(0x108, 12),
+	PORT(0x110, 12),
+	PORT(0x118, 12),
+	PORT(0x120, 12),
+	PORT(0x128, 12),
+	PORT(0x130, 12),
+	PORT(0x138, 12),
+	PORT(0x140, 12),
+	PORT(0x148, 12),
+	PORT(0x150, 12),
+	PORT(0x158, 12),
+	PORT(0x160, 12),
+	PORT(0x168, 12),
+	PORT(0x170, 12),
+	PORT(0x178, 12),
+	{ },
+};
+
+static struct platform_device boca_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_BOCA,
+	.dev			= {
+		.platform_data	= boca_data,
+	},
+};
+
+static int __init boca_init(void)
+{
+	return platform_device_register(&boca_device);
+}
+
+module_init(boca_init);
+
+MODULE_AUTHOR("Russell King");
+MODULE_DESCRIPTION("8250 serial probe module for Boca cards");
+MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
new file mode 100644
index 000000000..87e25a6f0
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -0,0 +1,4076 @@
+/*
+ *  Driver for 8250/16550-type serial ports
+ *
+ *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
+ *
+ *  Copyright (C) 2001 Russell King.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * A note about mapbase / membase
+ *
+ *  mapbase is the physical address of the IO port.
+ *  membase is an 'ioremapped' cookie.
+ */
+
+#if defined(CONFIG_SERIAL_8250_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
+#define SUPPORT_SYSRQ
+#endif
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/sysrq.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/tty.h>
+#include <linux/ratelimit.h>
+#include <linux/tty_flip.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/nmi.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/pm_runtime.h>
+#ifdef CONFIG_SPARC
+#include <linux/sunserialcore.h>
+#endif
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#include "8250.h"
+
+/*
+ * Configuration:
+ *   share_irqs - whether we pass IRQF_SHARED to request_irq().  This option
+ *                is unsafe when used on edge-triggered interrupts.
+ */
+static unsigned int share_irqs = SERIAL8250_SHARE_IRQS;
+
+static unsigned int nr_uarts = CONFIG_SERIAL_8250_RUNTIME_UARTS;
+
+static struct uart_driver serial8250_reg;
+
+static int serial_index(struct uart_port *port)
+{
+	return port->minor - 64;
+}
+
+static unsigned int skip_txen_test; /* force skip of txen test at init time */
+
+/*
+ * Debugging.
+ */
+#if 0
+#define DEBUG_AUTOCONF(fmt...)	printk(fmt)
+#else
+#define DEBUG_AUTOCONF(fmt...)	do { } while (0)
+#endif
+
+#if 0
+#define DEBUG_INTR(fmt...)	printk(fmt)
+#else
+#define DEBUG_INTR(fmt...)	do { } while (0)
+#endif
+
+#define PASS_LIMIT	512
+
+#define BOTH_EMPTY 	(UART_LSR_TEMT | UART_LSR_THRE)
+
+
+#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
+#define CONFIG_SERIAL_DETECT_IRQ 1
+#endif
+#ifdef CONFIG_SERIAL_8250_MANY_PORTS
+#define CONFIG_SERIAL_MANY_PORTS 1
+#endif
+
+/*
+ * HUB6 is always on.  This will be removed once the header
+ * files have been cleaned.
+ */
+#define CONFIG_HUB6 1
+
+#include <asm/serial.h>
+/*
+ * SERIAL_PORT_DFNS tells us about built-in ports that have no
+ * standard enumeration mechanism.   Platforms that can find all
+ * serial ports via mechanisms like ACPI or PCI need not supply it.
+ */
+#ifndef SERIAL_PORT_DFNS
+#define SERIAL_PORT_DFNS
+#endif
+
+static const struct old_serial_port old_serial_port[] = {
+	SERIAL_PORT_DFNS /* defined in asm/serial.h */
+};
+
+#define UART_NR	CONFIG_SERIAL_8250_NR_UARTS
+
+#ifdef CONFIG_SERIAL_8250_RSA
+
+#define PORT_RSA_MAX 4
+static unsigned long probe_rsa[PORT_RSA_MAX];
+static unsigned int probe_rsa_count;
+#endif /* CONFIG_SERIAL_8250_RSA  */
+
+struct irq_info {
+	struct			hlist_node node;
+	int			irq;
+	spinlock_t		lock;	/* Protects list not the hash */
+	struct list_head	*head;
+};
+
+#define NR_IRQ_HASH		32	/* Can be adjusted later */
+static struct hlist_head irq_lists[NR_IRQ_HASH];
+static DEFINE_MUTEX(hash_mutex);	/* Used to walk the hash */
+
+/*
+ * Here we define the default xmit fifo size used for each type of UART.
+ */
+static const struct serial8250_config uart_config[] = {
+	[PORT_UNKNOWN] = {
+		.name		= "unknown",
+		.fifo_size	= 1,
+		.tx_loadsz	= 1,
+	},
+	[PORT_8250] = {
+		.name		= "8250",
+		.fifo_size	= 1,
+		.tx_loadsz	= 1,
+	},
+	[PORT_16450] = {
+		.name		= "16450",
+		.fifo_size	= 1,
+		.tx_loadsz	= 1,
+	},
+	[PORT_16550] = {
+		.name		= "16550",
+		.fifo_size	= 1,
+		.tx_loadsz	= 1,
+	},
+	[PORT_16550A] = {
+		.name		= "16550A",
+		.fifo_size	= 16,
+		.tx_loadsz	= 16,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		.rxtrig_bytes	= {1, 4, 8, 14},
+		.flags		= UART_CAP_FIFO,
+	},
+	[PORT_CIRRUS] = {
+		.name		= "Cirrus",
+		.fifo_size	= 1,
+		.tx_loadsz	= 1,
+	},
+	[PORT_16650] = {
+		.name		= "ST16650",
+		.fifo_size	= 1,
+		.tx_loadsz	= 1,
+		.flags		= UART_CAP_FIFO | UART_CAP_EFR | UART_CAP_SLEEP,
+	},
+	[PORT_16650V2] = {
+		.name		= "ST16650V2",
+		.fifo_size	= 32,
+		.tx_loadsz	= 16,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_01 |
+				  UART_FCR_T_TRIG_00,
+		.rxtrig_bytes	= {8, 16, 24, 28},
+		.flags		= UART_CAP_FIFO | UART_CAP_EFR | UART_CAP_SLEEP,
+	},
+	[PORT_16750] = {
+		.name		= "TI16750",
+		.fifo_size	= 64,
+		.tx_loadsz	= 64,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10 |
+				  UART_FCR7_64BYTE,
+		.rxtrig_bytes	= {1, 16, 32, 56},
+		.flags		= UART_CAP_FIFO | UART_CAP_SLEEP | UART_CAP_AFE,
+	},
+	[PORT_STARTECH] = {
+		.name		= "Startech",
+		.fifo_size	= 1,
+		.tx_loadsz	= 1,
+	},
+	[PORT_16C950] = {
+		.name		= "16C950/954",
+		.fifo_size	= 128,
+		.tx_loadsz	= 128,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		/* UART_CAP_EFR breaks billionon CF bluetooth card. */
+		.flags		= UART_CAP_FIFO | UART_CAP_SLEEP,
+	},
+	[PORT_16654] = {
+		.name		= "ST16654",
+		.fifo_size	= 64,
+		.tx_loadsz	= 32,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_01 |
+				  UART_FCR_T_TRIG_10,
+		.rxtrig_bytes	= {8, 16, 56, 60},
+		.flags		= UART_CAP_FIFO | UART_CAP_EFR | UART_CAP_SLEEP,
+	},
+	[PORT_16850] = {
+		.name		= "XR16850",
+		.fifo_size	= 128,
+		.tx_loadsz	= 128,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		.flags		= UART_CAP_FIFO | UART_CAP_EFR | UART_CAP_SLEEP,
+	},
+	[PORT_RSA] = {
+		.name		= "RSA",
+		.fifo_size	= 2048,
+		.tx_loadsz	= 2048,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_11,
+		.flags		= UART_CAP_FIFO,
+	},
+	[PORT_NS16550A] = {
+		.name		= "NS16550A",
+		.fifo_size	= 16,
+		.tx_loadsz	= 16,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		.flags		= UART_CAP_FIFO | UART_NATSEMI,
+	},
+	[PORT_XSCALE] = {
+		.name		= "XScale",
+		.fifo_size	= 32,
+		.tx_loadsz	= 32,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		.flags		= UART_CAP_FIFO | UART_CAP_UUE | UART_CAP_RTOIE,
+	},
+	[PORT_OCTEON] = {
+		.name		= "OCTEON",
+		.fifo_size	= 64,
+		.tx_loadsz	= 64,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		.flags		= UART_CAP_FIFO,
+	},
+	[PORT_AR7] = {
+		.name		= "AR7",
+		.fifo_size	= 16,
+		.tx_loadsz	= 16,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_00,
+		.flags		= UART_CAP_FIFO | UART_CAP_AFE,
+	},
+	[PORT_U6_16550A] = {
+		.name		= "U6_16550A",
+		.fifo_size	= 64,
+		.tx_loadsz	= 64,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		.flags		= UART_CAP_FIFO | UART_CAP_AFE,
+	},
+	[PORT_TEGRA] = {
+		.name		= "Tegra",
+		.fifo_size	= 32,
+		.tx_loadsz	= 8,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_01 |
+				  UART_FCR_T_TRIG_01,
+		.rxtrig_bytes	= {1, 4, 8, 14},
+		.flags		= UART_CAP_FIFO | UART_CAP_RTOIE,
+	},
+	[PORT_XR17D15X] = {
+		.name		= "XR17D15X",
+		.fifo_size	= 64,
+		.tx_loadsz	= 64,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		.flags		= UART_CAP_FIFO | UART_CAP_AFE | UART_CAP_EFR |
+				  UART_CAP_SLEEP,
+	},
+	[PORT_XR17V35X] = {
+		.name		= "XR17V35X",
+		.fifo_size	= 256,
+		.tx_loadsz	= 256,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_11 |
+				  UART_FCR_T_TRIG_11,
+		.flags		= UART_CAP_FIFO | UART_CAP_AFE | UART_CAP_EFR |
+				  UART_CAP_SLEEP,
+	},
+	[PORT_LPC3220] = {
+		.name		= "LPC3220",
+		.fifo_size	= 64,
+		.tx_loadsz	= 32,
+		.fcr		= UART_FCR_DMA_SELECT | UART_FCR_ENABLE_FIFO |
+				  UART_FCR_R_TRIG_00 | UART_FCR_T_TRIG_00,
+		.flags		= UART_CAP_FIFO,
+	},
+	[PORT_BRCM_TRUMANAGE] = {
+		.name		= "TruManage",
+		.fifo_size	= 1,
+		.tx_loadsz	= 1024,
+		.flags		= UART_CAP_HFIFO,
+	},
+	[PORT_8250_CIR] = {
+		.name		= "CIR port"
+	},
+	[PORT_ALTR_16550_F32] = {
+		.name		= "Altera 16550 FIFO32",
+		.fifo_size	= 32,
+		.tx_loadsz	= 32,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		.flags		= UART_CAP_FIFO | UART_CAP_AFE,
+	},
+	[PORT_ALTR_16550_F64] = {
+		.name		= "Altera 16550 FIFO64",
+		.fifo_size	= 64,
+		.tx_loadsz	= 64,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		.flags		= UART_CAP_FIFO | UART_CAP_AFE,
+	},
+	[PORT_ALTR_16550_F128] = {
+		.name		= "Altera 16550 FIFO128",
+		.fifo_size	= 128,
+		.tx_loadsz	= 128,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
+		.flags		= UART_CAP_FIFO | UART_CAP_AFE,
+	},
+/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
+workaround of errata A-008006 which states that tx_loadsz should  be
+configured less than Maximum supported fifo bytes */
+	[PORT_16550A_FSL64] = {
+		.name		= "16550A_FSL64",
+		.fifo_size	= 64,
+		.tx_loadsz	= 63,
+		.fcr		= UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10 |
+				  UART_FCR7_64BYTE,
+		.flags		= UART_CAP_FIFO,
+	},
+};
+
+/* Uart divisor latch read */
+static int default_serial_dl_read(struct uart_8250_port *up)
+{
+	return serial_in(up, UART_DLL) | serial_in(up, UART_DLM) << 8;
+}
+
+/* Uart divisor latch write */
+static void default_serial_dl_write(struct uart_8250_port *up, int value)
+{
+	serial_out(up, UART_DLL, value & 0xff);
+	serial_out(up, UART_DLM, value >> 8 & 0xff);
+}
+
+#if defined(CONFIG_MIPS_ALCHEMY) || defined(CONFIG_SERIAL_8250_RT288X)
+
+/* Au1x00/RT288x UART hardware has a weird register layout */
+static const s8 au_io_in_map[8] = {
+	 0,	/* UART_RX  */
+	 2,	/* UART_IER */
+	 3,	/* UART_IIR */
+	 5,	/* UART_LCR */
+	 6,	/* UART_MCR */
+	 7,	/* UART_LSR */
+	 8,	/* UART_MSR */
+	-1,	/* UART_SCR (unmapped) */
+};
+
+static const s8 au_io_out_map[8] = {
+	 1,	/* UART_TX  */
+	 2,	/* UART_IER */
+	 4,	/* UART_FCR */
+	 5,	/* UART_LCR */
+	 6,	/* UART_MCR */
+	-1,	/* UART_LSR (unmapped) */
+	-1,	/* UART_MSR (unmapped) */
+	-1,	/* UART_SCR (unmapped) */
+};
+
+static unsigned int au_serial_in(struct uart_port *p, int offset)
+{
+	if (offset >= ARRAY_SIZE(au_io_in_map))
+		return UINT_MAX;
+	offset = au_io_in_map[offset];
+	if (offset < 0)
+		return UINT_MAX;
+	return __raw_readl(p->membase + (offset << p->regshift));
+}
+
+static void au_serial_out(struct uart_port *p, int offset, int value)
+{
+	if (offset >= ARRAY_SIZE(au_io_out_map))
+		return;
+	offset = au_io_out_map[offset];
+	if (offset < 0)
+		return;
+	__raw_writel(value, p->membase + (offset << p->regshift));
+}
+
+/* Au1x00 haven't got a standard divisor latch */
+static int au_serial_dl_read(struct uart_8250_port *up)
+{
+	return __raw_readl(up->port.membase + 0x28);
+}
+
+static void au_serial_dl_write(struct uart_8250_port *up, int value)
+{
+	__raw_writel(value, up->port.membase + 0x28);
+}
+
+#endif
+
+static unsigned int hub6_serial_in(struct uart_port *p, int offset)
+{
+	offset = offset << p->regshift;
+	outb(p->hub6 - 1 + offset, p->iobase);
+	return inb(p->iobase + 1);
+}
+
+static void hub6_serial_out(struct uart_port *p, int offset, int value)
+{
+	offset = offset << p->regshift;
+	outb(p->hub6 - 1 + offset, p->iobase);
+	outb(value, p->iobase + 1);
+}
+
+static unsigned int mem_serial_in(struct uart_port *p, int offset)
+{
+	offset = offset << p->regshift;
+	return readb(p->membase + offset);
+}
+
+static void mem_serial_out(struct uart_port *p, int offset, int value)
+{
+	offset = offset << p->regshift;
+	writeb(value, p->membase + offset);
+}
+
+static void mem32_serial_out(struct uart_port *p, int offset, int value)
+{
+	offset = offset << p->regshift;
+	writel(value, p->membase + offset);
+}
+
+static unsigned int mem32_serial_in(struct uart_port *p, int offset)
+{
+	offset = offset << p->regshift;
+	return readl(p->membase + offset);
+}
+
+static void mem32be_serial_out(struct uart_port *p, int offset, int value)
+{
+	offset = offset << p->regshift;
+	iowrite32be(value, p->membase + offset);
+}
+
+static unsigned int mem32be_serial_in(struct uart_port *p, int offset)
+{
+	offset = offset << p->regshift;
+	return ioread32be(p->membase + offset);
+}
+
+static unsigned int io_serial_in(struct uart_port *p, int offset)
+{
+	offset = offset << p->regshift;
+	return inb(p->iobase + offset);
+}
+
+static void io_serial_out(struct uart_port *p, int offset, int value)
+{
+	offset = offset << p->regshift;
+	outb(value, p->iobase + offset);
+}
+
+static int serial8250_default_handle_irq(struct uart_port *port);
+static int exar_handle_irq(struct uart_port *port);
+
+static void set_io_from_upio(struct uart_port *p)
+{
+	struct uart_8250_port *up = up_to_u8250p(p);
+
+	up->dl_read = default_serial_dl_read;
+	up->dl_write = default_serial_dl_write;
+
+	switch (p->iotype) {
+	case UPIO_HUB6:
+		p->serial_in = hub6_serial_in;
+		p->serial_out = hub6_serial_out;
+		break;
+
+	case UPIO_MEM:
+		p->serial_in = mem_serial_in;
+		p->serial_out = mem_serial_out;
+		break;
+
+	case UPIO_MEM32:
+		p->serial_in = mem32_serial_in;
+		p->serial_out = mem32_serial_out;
+		break;
+
+	case UPIO_MEM32BE:
+		p->serial_in = mem32be_serial_in;
+		p->serial_out = mem32be_serial_out;
+		break;
+
+#if defined(CONFIG_MIPS_ALCHEMY) || defined(CONFIG_SERIAL_8250_RT288X)
+	case UPIO_AU:
+		p->serial_in = au_serial_in;
+		p->serial_out = au_serial_out;
+		up->dl_read = au_serial_dl_read;
+		up->dl_write = au_serial_dl_write;
+		break;
+#endif
+
+	default:
+		p->serial_in = io_serial_in;
+		p->serial_out = io_serial_out;
+		break;
+	}
+	/* Remember loaded iotype */
+	up->cur_iotype = p->iotype;
+	p->handle_irq = serial8250_default_handle_irq;
+}
+
+static void
+serial_port_out_sync(struct uart_port *p, int offset, int value)
+{
+	switch (p->iotype) {
+	case UPIO_MEM:
+	case UPIO_MEM32:
+	case UPIO_MEM32BE:
+	case UPIO_AU:
+		p->serial_out(p, offset, value);
+		p->serial_in(p, UART_LCR);	/* safe, no side-effects */
+		break;
+	default:
+		p->serial_out(p, offset, value);
+	}
+}
+
+/*
+ * For the 16C950
+ */
+static void serial_icr_write(struct uart_8250_port *up, int offset, int value)
+{
+	serial_out(up, UART_SCR, offset);
+	serial_out(up, UART_ICR, value);
+}
+
+static unsigned int serial_icr_read(struct uart_8250_port *up, int offset)
+{
+	unsigned int value;
+
+	serial_icr_write(up, UART_ACR, up->acr | UART_ACR_ICRRD);
+	serial_out(up, UART_SCR, offset);
+	value = serial_in(up, UART_ICR);
+	serial_icr_write(up, UART_ACR, up->acr);
+
+	return value;
+}
+
+/*
+ * FIFO support.
+ */
+static void serial8250_clear_fifos(struct uart_8250_port *p)
+{
+	if (p->capabilities & UART_CAP_FIFO) {
+		serial_out(p, UART_FCR, UART_FCR_ENABLE_FIFO);
+		serial_out(p, UART_FCR, UART_FCR_ENABLE_FIFO |
+			       UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);
+		serial_out(p, UART_FCR, 0);
+	}
+}
+
+void serial8250_clear_and_reinit_fifos(struct uart_8250_port *p)
+{
+	serial8250_clear_fifos(p);
+	serial_out(p, UART_FCR, p->fcr);
+}
+EXPORT_SYMBOL_GPL(serial8250_clear_and_reinit_fifos);
+
+void serial8250_rpm_get(struct uart_8250_port *p)
+{
+	if (!(p->capabilities & UART_CAP_RPM))
+		return;
+	pm_runtime_get_sync(p->port.dev);
+}
+EXPORT_SYMBOL_GPL(serial8250_rpm_get);
+
+void serial8250_rpm_put(struct uart_8250_port *p)
+{
+	if (!(p->capabilities & UART_CAP_RPM))
+		return;
+	pm_runtime_mark_last_busy(p->port.dev);
+	pm_runtime_put_autosuspend(p->port.dev);
+}
+EXPORT_SYMBOL_GPL(serial8250_rpm_put);
+
+/*
+ * These two wrappers ensure that enable_runtime_pm_tx() can be called more than
+ * once and disable_runtime_pm_tx() will still disable RPM because the fifo is
+ * empty and the HW can idle again.
+ */
+static void serial8250_rpm_get_tx(struct uart_8250_port *p)
+{
+	unsigned char rpm_active;
+
+	if (!(p->capabilities & UART_CAP_RPM))
+		return;
+
+	rpm_active = xchg(&p->rpm_tx_active, 1);
+	if (rpm_active)
+		return;
+	pm_runtime_get_sync(p->port.dev);
+}
+
+static void serial8250_rpm_put_tx(struct uart_8250_port *p)
+{
+	unsigned char rpm_active;
+
+	if (!(p->capabilities & UART_CAP_RPM))
+		return;
+
+	rpm_active = xchg(&p->rpm_tx_active, 0);
+	if (!rpm_active)
+		return;
+	pm_runtime_mark_last_busy(p->port.dev);
+	pm_runtime_put_autosuspend(p->port.dev);
+}
+
+/*
+ * IER sleep support.  UARTs which have EFRs need the "extended
+ * capability" bit enabled.  Note that on XR16C850s, we need to
+ * reset LCR to write to IER.
+ */
+static void serial8250_set_sleep(struct uart_8250_port *p, int sleep)
+{
+	unsigned char lcr = 0, efr = 0;
+	/*
+	 * Exar UARTs have a SLEEP register that enables or disables
+	 * each UART to enter sleep mode separately.  On the XR17V35x the
+	 * register is accessible to each UART at the UART_EXAR_SLEEP
+	 * offset but the UART channel may only write to the corresponding
+	 * bit.
+	 */
+	serial8250_rpm_get(p);
+	if ((p->port.type == PORT_XR17V35X) ||
+	   (p->port.type == PORT_XR17D15X)) {
+		serial_out(p, UART_EXAR_SLEEP, sleep ? 0xff : 0);
+		goto out;
+	}
+
+	if (p->capabilities & UART_CAP_SLEEP) {
+		if (p->capabilities & UART_CAP_EFR) {
+			lcr = serial_in(p, UART_LCR);
+			efr = serial_in(p, UART_EFR);
+			serial_out(p, UART_LCR, UART_LCR_CONF_MODE_B);
+			serial_out(p, UART_EFR, UART_EFR_ECB);
+			serial_out(p, UART_LCR, 0);
+		}
+		serial_out(p, UART_IER, sleep ? UART_IERX_SLEEP : 0);
+		if (p->capabilities & UART_CAP_EFR) {
+			serial_out(p, UART_LCR, UART_LCR_CONF_MODE_B);
+			serial_out(p, UART_EFR, efr);
+			serial_out(p, UART_LCR, lcr);
+		}
+	}
+out:
+	serial8250_rpm_put(p);
+}
+
+#ifdef CONFIG_SERIAL_8250_RSA
+/*
+ * Attempts to turn on the RSA FIFO.  Returns zero on failure.
+ * We set the port uart clock rate if we succeed.
+ */
+static int __enable_rsa(struct uart_8250_port *up)
+{
+	unsigned char mode;
+	int result;
+
+	mode = serial_in(up, UART_RSA_MSR);
+	result = mode & UART_RSA_MSR_FIFO;
+
+	if (!result) {
+		serial_out(up, UART_RSA_MSR, mode | UART_RSA_MSR_FIFO);
+		mode = serial_in(up, UART_RSA_MSR);
+		result = mode & UART_RSA_MSR_FIFO;
+	}
+
+	if (result)
+		up->port.uartclk = SERIAL_RSA_BAUD_BASE * 16;
+
+	return result;
+}
+
+static void enable_rsa(struct uart_8250_port *up)
+{
+	if (up->port.type == PORT_RSA) {
+		if (up->port.uartclk != SERIAL_RSA_BAUD_BASE * 16) {
+			spin_lock_irq(&up->port.lock);
+			__enable_rsa(up);
+			spin_unlock_irq(&up->port.lock);
+		}
+		if (up->port.uartclk == SERIAL_RSA_BAUD_BASE * 16)
+			serial_out(up, UART_RSA_FRR, 0);
+	}
+}
+
+/*
+ * Attempts to turn off the RSA FIFO.  Returns zero on failure.
+ * It is unknown why interrupts were disabled in here.  However,
+ * the caller is expected to preserve this behaviour by grabbing
+ * the spinlock before calling this function.
+ */
+static void disable_rsa(struct uart_8250_port *up)
+{
+	unsigned char mode;
+	int result;
+
+	if (up->port.type == PORT_RSA &&
+	    up->port.uartclk == SERIAL_RSA_BAUD_BASE * 16) {
+		spin_lock_irq(&up->port.lock);
+
+		mode = serial_in(up, UART_RSA_MSR);
+		result = !(mode & UART_RSA_MSR_FIFO);
+
+		if (!result) {
+			serial_out(up, UART_RSA_MSR, mode & ~UART_RSA_MSR_FIFO);
+			mode = serial_in(up, UART_RSA_MSR);
+			result = !(mode & UART_RSA_MSR_FIFO);
+		}
+
+		if (result)
+			up->port.uartclk = SERIAL_RSA_BAUD_BASE_LO * 16;
+		spin_unlock_irq(&up->port.lock);
+	}
+}
+#endif /* CONFIG_SERIAL_8250_RSA */
+
+/*
+ * This is a quickie test to see how big the FIFO is.
+ * It doesn't work at all the time, more's the pity.
+ */
+static int size_fifo(struct uart_8250_port *up)
+{
+	unsigned char old_fcr, old_mcr, old_lcr;
+	unsigned short old_dl;
+	int count;
+
+	old_lcr = serial_in(up, UART_LCR);
+	serial_out(up, UART_LCR, 0);
+	old_fcr = serial_in(up, UART_FCR);
+	old_mcr = serial_in(up, UART_MCR);
+	serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO |
+		    UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);
+	serial_out(up, UART_MCR, UART_MCR_LOOP);
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
+	old_dl = serial_dl_read(up);
+	serial_dl_write(up, 0x0001);
+	serial_out(up, UART_LCR, 0x03);
+	for (count = 0; count < 256; count++)
+		serial_out(up, UART_TX, count);
+	mdelay(20);/* FIXME - schedule_timeout */
+	for (count = 0; (serial_in(up, UART_LSR) & UART_LSR_DR) &&
+	     (count < 256); count++)
+		serial_in(up, UART_RX);
+	serial_out(up, UART_FCR, old_fcr);
+	serial_out(up, UART_MCR, old_mcr);
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
+	serial_dl_write(up, old_dl);
+	serial_out(up, UART_LCR, old_lcr);
+
+	return count;
+}
+
+/*
+ * Read UART ID using the divisor method - set DLL and DLM to zero
+ * and the revision will be in DLL and device type in DLM.  We
+ * preserve the device state across this.
+ */
+static unsigned int autoconfig_read_divisor_id(struct uart_8250_port *p)
+{
+	unsigned char old_dll, old_dlm, old_lcr;
+	unsigned int id;
+
+	old_lcr = serial_in(p, UART_LCR);
+	serial_out(p, UART_LCR, UART_LCR_CONF_MODE_A);
+
+	old_dll = serial_in(p, UART_DLL);
+	old_dlm = serial_in(p, UART_DLM);
+
+	serial_out(p, UART_DLL, 0);
+	serial_out(p, UART_DLM, 0);
+
+	id = serial_in(p, UART_DLL) | serial_in(p, UART_DLM) << 8;
+
+	serial_out(p, UART_DLL, old_dll);
+	serial_out(p, UART_DLM, old_dlm);
+	serial_out(p, UART_LCR, old_lcr);
+
+	return id;
+}
+
+/*
+ * This is a helper routine to autodetect StarTech/Exar/Oxsemi UART's.
+ * When this function is called we know it is at least a StarTech
+ * 16650 V2, but it might be one of several StarTech UARTs, or one of
+ * its clones.  (We treat the broken original StarTech 16650 V1 as a
+ * 16550, and why not?  Startech doesn't seem to even acknowledge its
+ * existence.)
+ *
+ * What evil have men's minds wrought...
+ */
+static void autoconfig_has_efr(struct uart_8250_port *up)
+{
+	unsigned int id1, id2, id3, rev;
+
+	/*
+	 * Everything with an EFR has SLEEP
+	 */
+	up->capabilities |= UART_CAP_EFR | UART_CAP_SLEEP;
+
+	/*
+	 * First we check to see if it's an Oxford Semiconductor UART.
+	 *
+	 * If we have to do this here because some non-National
+	 * Semiconductor clone chips lock up if you try writing to the
+	 * LSR register (which serial_icr_read does)
+	 */
+
+	/*
+	 * Check for Oxford Semiconductor 16C950.
+	 *
+	 * EFR [4] must be set else this test fails.
+	 *
+	 * This shouldn't be necessary, but Mike Hudson (Exoray@isys.ca)
+	 * claims that it's needed for 952 dual UART's (which are not
+	 * recommended for new designs).
+	 */
+	up->acr = 0;
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+	serial_out(up, UART_EFR, UART_EFR_ECB);
+	serial_out(up, UART_LCR, 0x00);
+	id1 = serial_icr_read(up, UART_ID1);
+	id2 = serial_icr_read(up, UART_ID2);
+	id3 = serial_icr_read(up, UART_ID3);
+	rev = serial_icr_read(up, UART_REV);
+
+	DEBUG_AUTOCONF("950id=%02x:%02x:%02x:%02x ", id1, id2, id3, rev);
+
+	if (id1 == 0x16 && id2 == 0xC9 &&
+	    (id3 == 0x50 || id3 == 0x52 || id3 == 0x54)) {
+		up->port.type = PORT_16C950;
+
+		/*
+		 * Enable work around for the Oxford Semiconductor 952 rev B
+		 * chip which causes it to seriously miscalculate baud rates
+		 * when DLL is 0.
+		 */
+		if (id3 == 0x52 && rev == 0x01)
+			up->bugs |= UART_BUG_QUOT;
+		return;
+	}
+
+	/*
+	 * We check for a XR16C850 by setting DLL and DLM to 0, and then
+	 * reading back DLL and DLM.  The chip type depends on the DLM
+	 * value read back:
+	 *  0x10 - XR16C850 and the DLL contains the chip revision.
+	 *  0x12 - XR16C2850.
+	 *  0x14 - XR16C854.
+	 */
+	id1 = autoconfig_read_divisor_id(up);
+	DEBUG_AUTOCONF("850id=%04x ", id1);
+
+	id2 = id1 >> 8;
+	if (id2 == 0x10 || id2 == 0x12 || id2 == 0x14) {
+		up->port.type = PORT_16850;
+		return;
+	}
+
+	/*
+	 * It wasn't an XR16C850.
+	 *
+	 * We distinguish between the '654 and the '650 by counting
+	 * how many bytes are in the FIFO.  I'm using this for now,
+	 * since that's the technique that was sent to me in the
+	 * serial driver update, but I'm not convinced this works.
+	 * I've had problems doing this in the past.  -TYT
+	 */
+	if (size_fifo(up) == 64)
+		up->port.type = PORT_16654;
+	else
+		up->port.type = PORT_16650V2;
+}
+
+/*
+ * We detected a chip without a FIFO.  Only two fall into
+ * this category - the original 8250 and the 16450.  The
+ * 16450 has a scratch register (accessible with LCR=0)
+ */
+static void autoconfig_8250(struct uart_8250_port *up)
+{
+	unsigned char scratch, status1, status2;
+
+	up->port.type = PORT_8250;
+
+	scratch = serial_in(up, UART_SCR);
+	serial_out(up, UART_SCR, 0xa5);
+	status1 = serial_in(up, UART_SCR);
+	serial_out(up, UART_SCR, 0x5a);
+	status2 = serial_in(up, UART_SCR);
+	serial_out(up, UART_SCR, scratch);
+
+	if (status1 == 0xa5 && status2 == 0x5a)
+		up->port.type = PORT_16450;
+}
+
+static int broken_efr(struct uart_8250_port *up)
+{
+	/*
+	 * Exar ST16C2550 "A2" devices incorrectly detect as
+	 * having an EFR, and report an ID of 0x0201.  See
+	 * http://linux.derkeiler.com/Mailing-Lists/Kernel/2004-11/4812.html
+	 */
+	if (autoconfig_read_divisor_id(up) == 0x0201 && size_fifo(up) == 16)
+		return 1;
+
+	return 0;
+}
+
+/*
+ * We know that the chip has FIFOs.  Does it have an EFR?  The
+ * EFR is located in the same register position as the IIR and
+ * we know the top two bits of the IIR are currently set.  The
+ * EFR should contain zero.  Try to read the EFR.
+ */
+static void autoconfig_16550a(struct uart_8250_port *up)
+{
+	unsigned char status1, status2;
+	unsigned int iersave;
+
+	up->port.type = PORT_16550A;
+	up->capabilities |= UART_CAP_FIFO;
+
+	/*
+	 * XR17V35x UARTs have an extra divisor register, DLD
+	 * that gets enabled with when DLAB is set which will
+	 * cause the device to incorrectly match and assign
+	 * port type to PORT_16650.  The EFR for this UART is
+	 * found at offset 0x09. Instead check the Deice ID (DVID)
+	 * register for a 2, 4 or 8 port UART.
+	 */
+	if (up->port.flags & UPF_EXAR_EFR) {
+		status1 = serial_in(up, UART_EXAR_DVID);
+		if (status1 == 0x82 || status1 == 0x84 || status1 == 0x88) {
+			DEBUG_AUTOCONF("Exar XR17V35x ");
+			up->port.type = PORT_XR17V35X;
+			up->capabilities |= UART_CAP_AFE | UART_CAP_EFR |
+						UART_CAP_SLEEP;
+
+			return;
+		}
+
+	}
+
+	/*
+	 * Check for presence of the EFR when DLAB is set.
+	 * Only ST16C650V1 UARTs pass this test.
+	 */
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
+	if (serial_in(up, UART_EFR) == 0) {
+		serial_out(up, UART_EFR, 0xA8);
+		if (serial_in(up, UART_EFR) != 0) {
+			DEBUG_AUTOCONF("EFRv1 ");
+			up->port.type = PORT_16650;
+			up->capabilities |= UART_CAP_EFR | UART_CAP_SLEEP;
+		} else {
+			serial_out(up, UART_LCR, 0);
+			serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO |
+				   UART_FCR7_64BYTE);
+			status1 = serial_in(up, UART_IIR) >> 5;
+			serial_out(up, UART_FCR, 0);
+			serial_out(up, UART_LCR, 0);
+
+			if (status1 == 7)
+				up->port.type = PORT_16550A_FSL64;
+			else
+				DEBUG_AUTOCONF("Motorola 8xxx DUART ");
+		}
+		serial_out(up, UART_EFR, 0);
+		return;
+	}
+
+	/*
+	 * Maybe it requires 0xbf to be written to the LCR.
+	 * (other ST16C650V2 UARTs, TI16C752A, etc)
+	 */
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+	if (serial_in(up, UART_EFR) == 0 && !broken_efr(up)) {
+		DEBUG_AUTOCONF("EFRv2 ");
+		autoconfig_has_efr(up);
+		return;
+	}
+
+	/*
+	 * Check for a National Semiconductor SuperIO chip.
+	 * Attempt to switch to bank 2, read the value of the LOOP bit
+	 * from EXCR1. Switch back to bank 0, change it in MCR. Then
+	 * switch back to bank 2, read it from EXCR1 again and check
+	 * it's changed. If so, set baud_base in EXCR2 to 921600. -- dwmw2
+	 */
+	serial_out(up, UART_LCR, 0);
+	status1 = serial_in(up, UART_MCR);
+	serial_out(up, UART_LCR, 0xE0);
+	status2 = serial_in(up, 0x02); /* EXCR1 */
+
+	if (!((status2 ^ status1) & UART_MCR_LOOP)) {
+		serial_out(up, UART_LCR, 0);
+		serial_out(up, UART_MCR, status1 ^ UART_MCR_LOOP);
+		serial_out(up, UART_LCR, 0xE0);
+		status2 = serial_in(up, 0x02); /* EXCR1 */
+		serial_out(up, UART_LCR, 0);
+		serial_out(up, UART_MCR, status1);
+
+		if ((status2 ^ status1) & UART_MCR_LOOP) {
+			unsigned short quot;
+
+			serial_out(up, UART_LCR, 0xE0);
+
+			quot = serial_dl_read(up);
+			quot <<= 3;
+
+			if (ns16550a_goto_highspeed(up))
+				serial_dl_write(up, quot);
+
+			serial_out(up, UART_LCR, 0);
+
+			up->port.uartclk = 921600*16;
+			up->port.type = PORT_NS16550A;
+			up->capabilities |= UART_NATSEMI;
+			return;
+		}
+	}
+
+	/*
+	 * No EFR.  Try to detect a TI16750, which only sets bit 5 of
+	 * the IIR when 64 byte FIFO mode is enabled when DLAB is set.
+	 * Try setting it with and without DLAB set.  Cheap clones
+	 * set bit 5 without DLAB set.
+	 */
+	serial_out(up, UART_LCR, 0);
+	serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR7_64BYTE);
+	status1 = serial_in(up, UART_IIR) >> 5;
+	serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO);
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
+	serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR7_64BYTE);
+	status2 = serial_in(up, UART_IIR) >> 5;
+	serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO);
+	serial_out(up, UART_LCR, 0);
+
+	DEBUG_AUTOCONF("iir1=%d iir2=%d ", status1, status2);
+
+	if (status1 == 6 && status2 == 7) {
+		up->port.type = PORT_16750;
+		up->capabilities |= UART_CAP_AFE | UART_CAP_SLEEP;
+		return;
+	}
+
+	/*
+	 * Try writing and reading the UART_IER_UUE bit (b6).
+	 * If it works, this is probably one of the Xscale platform's
+	 * internal UARTs.
+	 * We're going to explicitly set the UUE bit to 0 before
+	 * trying to write and read a 1 just to make sure it's not
+	 * already a 1 and maybe locked there before we even start start.
+	 */
+	iersave = serial_in(up, UART_IER);
+	serial_out(up, UART_IER, iersave & ~UART_IER_UUE);
+	if (!(serial_in(up, UART_IER) & UART_IER_UUE)) {
+		/*
+		 * OK it's in a known zero state, try writing and reading
+		 * without disturbing the current state of the other bits.
+		 */
+		serial_out(up, UART_IER, iersave | UART_IER_UUE);
+		if (serial_in(up, UART_IER) & UART_IER_UUE) {
+			/*
+			 * It's an Xscale.
+			 * We'll leave the UART_IER_UUE bit set to 1 (enabled).
+			 */
+			DEBUG_AUTOCONF("Xscale ");
+			up->port.type = PORT_XSCALE;
+			up->capabilities |= UART_CAP_UUE | UART_CAP_RTOIE;
+			return;
+		}
+	} else {
+		/*
+		 * If we got here we couldn't force the IER_UUE bit to 0.
+		 * Log it and continue.
+		 */
+		DEBUG_AUTOCONF("Couldn't force IER_UUE to 0 ");
+	}
+	serial_out(up, UART_IER, iersave);
+
+	/*
+	 * Exar uarts have EFR in a weird location
+	 */
+	if (up->port.flags & UPF_EXAR_EFR) {
+		DEBUG_AUTOCONF("Exar XR17D15x ");
+		up->port.type = PORT_XR17D15X;
+		up->capabilities |= UART_CAP_AFE | UART_CAP_EFR |
+				    UART_CAP_SLEEP;
+
+		return;
+	}
+
+	/*
+	 * We distinguish between 16550A and U6 16550A by counting
+	 * how many bytes are in the FIFO.
+	 */
+	if (up->port.type == PORT_16550A && size_fifo(up) == 64) {
+		up->port.type = PORT_U6_16550A;
+		up->capabilities |= UART_CAP_AFE;
+	}
+}
+
+/*
+ * This routine is called by rs_init() to initialize a specific serial
+ * port.  It determines what type of UART chip this serial port is
+ * using: 8250, 16450, 16550, 16550A.  The important question is
+ * whether or not this UART is a 16550A or not, since this will
+ * determine whether or not we can use its FIFO features or not.
+ */
+static void autoconfig(struct uart_8250_port *up)
+{
+	unsigned char status1, scratch, scratch2, scratch3;
+	unsigned char save_lcr, save_mcr;
+	struct uart_port *port = &up->port;
+	unsigned long flags;
+	unsigned int old_capabilities;
+
+	if (!port->iobase && !port->mapbase && !port->membase)
+		return;
+
+	DEBUG_AUTOCONF("ttyS%d: autoconf (0x%04lx, 0x%p): ",
+		       serial_index(port), port->iobase, port->membase);
+
+	/*
+	 * We really do need global IRQs disabled here - we're going to
+	 * be frobbing the chips IRQ enable register to see if it exists.
+	 */
+	spin_lock_irqsave(&port->lock, flags);
+
+	up->capabilities = 0;
+	up->bugs = 0;
+
+	if (!(port->flags & UPF_BUGGY_UART)) {
+		/*
+		 * Do a simple existence test first; if we fail this,
+		 * there's no point trying anything else.
+		 *
+		 * 0x80 is used as a nonsense port to prevent against
+		 * false positives due to ISA bus float.  The
+		 * assumption is that 0x80 is a non-existent port;
+		 * which should be safe since include/asm/io.h also
+		 * makes this assumption.
+		 *
+		 * Note: this is safe as long as MCR bit 4 is clear
+		 * and the device is in "PC" mode.
+		 */
+		scratch = serial_in(up, UART_IER);
+		serial_out(up, UART_IER, 0);
+#ifdef __i386__
+		outb(0xff, 0x080);
+#endif
+		/*
+		 * Mask out IER[7:4] bits for test as some UARTs (e.g. TL
+		 * 16C754B) allow only to modify them if an EFR bit is set.
+		 */
+		scratch2 = serial_in(up, UART_IER) & 0x0f;
+		serial_out(up, UART_IER, 0x0F);
+#ifdef __i386__
+		outb(0, 0x080);
+#endif
+		scratch3 = serial_in(up, UART_IER) & 0x0f;
+		serial_out(up, UART_IER, scratch);
+		if (scratch2 != 0 || scratch3 != 0x0F) {
+			/*
+			 * We failed; there's nothing here
+			 */
+			spin_unlock_irqrestore(&port->lock, flags);
+			DEBUG_AUTOCONF("IER test failed (%02x, %02x) ",
+				       scratch2, scratch3);
+			goto out;
+		}
+	}
+
+	save_mcr = serial_in(up, UART_MCR);
+	save_lcr = serial_in(up, UART_LCR);
+
+	/*
+	 * Check to see if a UART is really there.  Certain broken
+	 * internal modems based on the Rockwell chipset fail this
+	 * test, because they apparently don't implement the loopback
+	 * test mode.  So this test is skipped on the COM 1 through
+	 * COM 4 ports.  This *should* be safe, since no board
+	 * manufacturer would be stupid enough to design a board
+	 * that conflicts with COM 1-4 --- we hope!
+	 */
+	if (!(port->flags & UPF_SKIP_TEST)) {
+		serial_out(up, UART_MCR, UART_MCR_LOOP | 0x0A);
+		status1 = serial_in(up, UART_MSR) & 0xF0;
+		serial_out(up, UART_MCR, save_mcr);
+		if (status1 != 0x90) {
+			spin_unlock_irqrestore(&port->lock, flags);
+			DEBUG_AUTOCONF("LOOP test failed (%02x) ",
+				       status1);
+			goto out;
+		}
+	}
+
+	/*
+	 * We're pretty sure there's a port here.  Lets find out what
+	 * type of port it is.  The IIR top two bits allows us to find
+	 * out if it's 8250 or 16450, 16550, 16550A or later.  This
+	 * determines what we test for next.
+	 *
+	 * We also initialise the EFR (if any) to zero for later.  The
+	 * EFR occupies the same register location as the FCR and IIR.
+	 */
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+	serial_out(up, UART_EFR, 0);
+	serial_out(up, UART_LCR, 0);
+
+	serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO);
+	scratch = serial_in(up, UART_IIR) >> 6;
+
+	switch (scratch) {
+	case 0:
+		autoconfig_8250(up);
+		break;
+	case 1:
+		port->type = PORT_UNKNOWN;
+		break;
+	case 2:
+		port->type = PORT_16550;
+		break;
+	case 3:
+		autoconfig_16550a(up);
+		break;
+	}
+
+#ifdef CONFIG_SERIAL_8250_RSA
+	/*
+	 * Only probe for RSA ports if we got the region.
+	 */
+	if (port->type == PORT_16550A && up->probe & UART_PROBE_RSA &&
+	    __enable_rsa(up))
+		port->type = PORT_RSA;
+#endif
+
+	serial_out(up, UART_LCR, save_lcr);
+
+	port->fifosize = uart_config[up->port.type].fifo_size;
+	old_capabilities = up->capabilities;
+	up->capabilities = uart_config[port->type].flags;
+	up->tx_loadsz = uart_config[port->type].tx_loadsz;
+
+	if (port->type == PORT_UNKNOWN)
+		goto out_lock;
+
+	/*
+	 * Reset the UART.
+	 */
+#ifdef CONFIG_SERIAL_8250_RSA
+	if (port->type == PORT_RSA)
+		serial_out(up, UART_RSA_FRR, 0);
+#endif
+	serial_out(up, UART_MCR, save_mcr);
+	serial8250_clear_fifos(up);
+	serial_in(up, UART_RX);
+	if (up->capabilities & UART_CAP_UUE)
+		serial_out(up, UART_IER, UART_IER_UUE);
+	else
+		serial_out(up, UART_IER, 0);
+
+out_lock:
+	spin_unlock_irqrestore(&port->lock, flags);
+	if (up->capabilities != old_capabilities) {
+		printk(KERN_WARNING
+		       "ttyS%d: detected caps %08x should be %08x\n",
+		       serial_index(port), old_capabilities,
+		       up->capabilities);
+	}
+out:
+	DEBUG_AUTOCONF("iir=%d ", scratch);
+	DEBUG_AUTOCONF("type=%s\n", uart_config[port->type].name);
+}
+
+static void autoconfig_irq(struct uart_8250_port *up)
+{
+	struct uart_port *port = &up->port;
+	unsigned char save_mcr, save_ier;
+	unsigned char save_ICP = 0;
+	unsigned int ICP = 0;
+	unsigned long irqs;
+	int irq;
+
+	if (port->flags & UPF_FOURPORT) {
+		ICP = (port->iobase & 0xfe0) | 0x1f;
+		save_ICP = inb_p(ICP);
+		outb_p(0x80, ICP);
+		inb_p(ICP);
+	}
+
+	/* forget possible initially masked and pending IRQ */
+	probe_irq_off(probe_irq_on());
+	save_mcr = serial_in(up, UART_MCR);
+	save_ier = serial_in(up, UART_IER);
+	serial_out(up, UART_MCR, UART_MCR_OUT1 | UART_MCR_OUT2);
+
+	irqs = probe_irq_on();
+	serial_out(up, UART_MCR, 0);
+	udelay(10);
+	if (port->flags & UPF_FOURPORT) {
+		serial_out(up, UART_MCR,
+			    UART_MCR_DTR | UART_MCR_RTS);
+	} else {
+		serial_out(up, UART_MCR,
+			    UART_MCR_DTR | UART_MCR_RTS | UART_MCR_OUT2);
+	}
+	serial_out(up, UART_IER, 0x0f);	/* enable all intrs */
+	serial_in(up, UART_LSR);
+	serial_in(up, UART_RX);
+	serial_in(up, UART_IIR);
+	serial_in(up, UART_MSR);
+	serial_out(up, UART_TX, 0xFF);
+	udelay(20);
+	irq = probe_irq_off(irqs);
+
+	serial_out(up, UART_MCR, save_mcr);
+	serial_out(up, UART_IER, save_ier);
+
+	if (port->flags & UPF_FOURPORT)
+		outb_p(save_ICP, ICP);
+
+	port->irq = (irq > 0) ? irq : 0;
+}
+
+static inline void __stop_tx(struct uart_8250_port *p)
+{
+	if (p->ier & UART_IER_THRI) {
+		p->ier &= ~UART_IER_THRI;
+		serial_out(p, UART_IER, p->ier);
+		serial8250_rpm_put_tx(p);
+	}
+}
+
+static void serial8250_stop_tx(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	serial8250_rpm_get(up);
+	__stop_tx(up);
+
+	/*
+	 * We really want to stop the transmitter from sending.
+	 */
+	if (port->type == PORT_16C950) {
+		up->acr |= UART_ACR_TXDIS;
+		serial_icr_write(up, UART_ACR, up->acr);
+	}
+	serial8250_rpm_put(up);
+}
+
+static void serial8250_start_tx(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	serial8250_rpm_get_tx(up);
+
+	if (up->dma && !up->dma->tx_dma(up))
+		return;
+
+	if (!(up->ier & UART_IER_THRI)) {
+		up->ier |= UART_IER_THRI;
+		serial_port_out(port, UART_IER, up->ier);
+
+		if (up->bugs & UART_BUG_TXEN) {
+			unsigned char lsr;
+			lsr = serial_in(up, UART_LSR);
+			up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;
+			if (lsr & UART_LSR_THRE)
+				serial8250_tx_chars(up);
+		}
+	}
+
+	/*
+	 * Re-enable the transmitter if we disabled it.
+	 */
+	if (port->type == PORT_16C950 && up->acr & UART_ACR_TXDIS) {
+		up->acr &= ~UART_ACR_TXDIS;
+		serial_icr_write(up, UART_ACR, up->acr);
+	}
+}
+
+static void serial8250_throttle(struct uart_port *port)
+{
+	port->throttle(port);
+}
+
+static void serial8250_unthrottle(struct uart_port *port)
+{
+	port->unthrottle(port);
+}
+
+static void serial8250_stop_rx(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	serial8250_rpm_get(up);
+
+	up->ier &= ~(UART_IER_RLSI | UART_IER_RDI);
+	up->port.read_status_mask &= ~UART_LSR_DR;
+	serial_port_out(port, UART_IER, up->ier);
+
+	serial8250_rpm_put(up);
+}
+
+static void serial8250_disable_ms(struct uart_port *port)
+{
+	struct uart_8250_port *up =
+		container_of(port, struct uart_8250_port, port);
+
+	/* no MSR capabilities */
+	if (up->bugs & UART_BUG_NOMSR)
+		return;
+
+	up->ier &= ~UART_IER_MSI;
+	serial_port_out(port, UART_IER, up->ier);
+}
+
+static void serial8250_enable_ms(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	/* no MSR capabilities */
+	if (up->bugs & UART_BUG_NOMSR)
+		return;
+
+	up->ier |= UART_IER_MSI;
+
+	serial8250_rpm_get(up);
+	serial_port_out(port, UART_IER, up->ier);
+	serial8250_rpm_put(up);
+}
+
+/*
+ * serial8250_rx_chars: processes according to the passed in LSR
+ * value, and returns the remaining LSR bits not handled
+ * by this Rx routine.
+ */
+unsigned char
+serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr)
+{
+	struct uart_port *port = &up->port;
+	unsigned char ch;
+	int max_count = 256;
+	char flag;
+
+	do {
+		if (likely(lsr & UART_LSR_DR))
+			ch = serial_in(up, UART_RX);
+		else
+			/*
+			 * Intel 82571 has a Serial Over Lan device that will
+			 * set UART_LSR_BI without setting UART_LSR_DR when
+			 * it receives a break. To avoid reading from the
+			 * receive buffer without UART_LSR_DR bit set, we
+			 * just force the read character to be 0
+			 */
+			ch = 0;
+
+		flag = TTY_NORMAL;
+		port->icount.rx++;
+
+		lsr |= up->lsr_saved_flags;
+		up->lsr_saved_flags = 0;
+
+		if (unlikely(lsr & UART_LSR_BRK_ERROR_BITS)) {
+			if (lsr & UART_LSR_BI) {
+				lsr &= ~(UART_LSR_FE | UART_LSR_PE);
+				port->icount.brk++;
+				/*
+				 * We do the SysRQ and SAK checking
+				 * here because otherwise the break
+				 * may get masked by ignore_status_mask
+				 * or read_status_mask.
+				 */
+				if (uart_handle_break(port))
+					goto ignore_char;
+			} else if (lsr & UART_LSR_PE)
+				port->icount.parity++;
+			else if (lsr & UART_LSR_FE)
+				port->icount.frame++;
+			if (lsr & UART_LSR_OE)
+				port->icount.overrun++;
+
+			/*
+			 * Mask off conditions which should be ignored.
+			 */
+			lsr &= port->read_status_mask;
+
+			if (lsr & UART_LSR_BI) {
+				DEBUG_INTR("handling break....");
+				flag = TTY_BREAK;
+			} else if (lsr & UART_LSR_PE)
+				flag = TTY_PARITY;
+			else if (lsr & UART_LSR_FE)
+				flag = TTY_FRAME;
+		}
+		if (uart_handle_sysrq_char(port, ch))
+			goto ignore_char;
+
+		uart_insert_char(port, lsr, UART_LSR_OE, ch, flag);
+
+ignore_char:
+		lsr = serial_in(up, UART_LSR);
+	} while ((lsr & (UART_LSR_DR | UART_LSR_BI)) && (--max_count > 0));
+	spin_unlock(&port->lock);
+	tty_flip_buffer_push(&port->state->port);
+	spin_lock(&port->lock);
+	return lsr;
+}
+EXPORT_SYMBOL_GPL(serial8250_rx_chars);
+
+void serial8250_tx_chars(struct uart_8250_port *up)
+{
+	struct uart_port *port = &up->port;
+	struct circ_buf *xmit = &port->state->xmit;
+	int count;
+
+	if (port->x_char) {
+		serial_out(up, UART_TX, port->x_char);
+		port->icount.tx++;
+		port->x_char = 0;
+		return;
+	}
+	if (uart_tx_stopped(port)) {
+		serial8250_stop_tx(port);
+		return;
+	}
+	if (uart_circ_empty(xmit)) {
+		__stop_tx(up);
+		return;
+	}
+
+	count = up->tx_loadsz;
+	do {
+		serial_out(up, UART_TX, xmit->buf[xmit->tail]);
+		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+		port->icount.tx++;
+		if (uart_circ_empty(xmit))
+			break;
+		if (up->capabilities & UART_CAP_HFIFO) {
+			if ((serial_port_in(port, UART_LSR) & BOTH_EMPTY) !=
+			    BOTH_EMPTY)
+				break;
+		}
+	} while (--count > 0);
+
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+		uart_write_wakeup(port);
+
+	DEBUG_INTR("THRE...");
+
+	/*
+	 * With RPM enabled, we have to wait until the FIFO is empty before the
+	 * HW can go idle. So we get here once again with empty FIFO and disable
+	 * the interrupt and RPM in __stop_tx()
+	 */
+	if (uart_circ_empty(xmit) && !(up->capabilities & UART_CAP_RPM))
+		__stop_tx(up);
+}
+EXPORT_SYMBOL_GPL(serial8250_tx_chars);
+
+/* Caller holds uart port lock */
+unsigned int serial8250_modem_status(struct uart_8250_port *up)
+{
+	struct uart_port *port = &up->port;
+	unsigned int status = serial_in(up, UART_MSR);
+
+	status |= up->msr_saved_flags;
+	up->msr_saved_flags = 0;
+	if (status & UART_MSR_ANY_DELTA && up->ier & UART_IER_MSI &&
+	    port->state != NULL) {
+		if (status & UART_MSR_TERI)
+			port->icount.rng++;
+		if (status & UART_MSR_DDSR)
+			port->icount.dsr++;
+		if (status & UART_MSR_DDCD)
+			uart_handle_dcd_change(port, status & UART_MSR_DCD);
+		if (status & UART_MSR_DCTS)
+			uart_handle_cts_change(port, status & UART_MSR_CTS);
+
+		wake_up_interruptible(&port->state->port.delta_msr_wait);
+	}
+
+	return status;
+}
+EXPORT_SYMBOL_GPL(serial8250_modem_status);
+
+/*
+ * This handles the interrupt from one port.
+ */
+int serial8250_handle_irq(struct uart_port *port, unsigned int iir)
+{
+	unsigned char status;
+	unsigned long flags;
+	struct uart_8250_port *up = up_to_u8250p(port);
+	int dma_err = 0;
+
+	if (iir & UART_IIR_NO_INT)
+		return 0;
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	status = serial_port_in(port, UART_LSR);
+
+	DEBUG_INTR("status = %x...", status);
+
+	if (status & (UART_LSR_DR | UART_LSR_BI)) {
+		if (up->dma)
+			dma_err = up->dma->rx_dma(up, iir);
+
+		if (!up->dma || dma_err)
+			status = serial8250_rx_chars(up, status);
+	}
+	serial8250_modem_status(up);
+	if ((!up->dma || (up->dma && up->dma->tx_err)) &&
+	    (status & UART_LSR_THRE))
+		serial8250_tx_chars(up);
+
+	spin_unlock_irqrestore(&port->lock, flags);
+	return 1;
+}
+EXPORT_SYMBOL_GPL(serial8250_handle_irq);
+
+static int serial8250_default_handle_irq(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned int iir;
+	int ret;
+
+	serial8250_rpm_get(up);
+
+	iir = serial_port_in(port, UART_IIR);
+	ret = serial8250_handle_irq(port, iir);
+
+	serial8250_rpm_put(up);
+	return ret;
+}
+
+/*
+ * These Exar UARTs have an extra interrupt indicator that could
+ * fire for a few unimplemented interrupts.  One of which is a
+ * wakeup event when coming out of sleep.  Put this here just
+ * to be on the safe side that these interrupts don't go unhandled.
+ */
+static int exar_handle_irq(struct uart_port *port)
+{
+	unsigned char int0, int1, int2, int3;
+	unsigned int iir = serial_port_in(port, UART_IIR);
+	int ret;
+
+	ret = serial8250_handle_irq(port, iir);
+
+	if ((port->type == PORT_XR17V35X) ||
+	   (port->type == PORT_XR17D15X)) {
+		int0 = serial_port_in(port, 0x80);
+		int1 = serial_port_in(port, 0x81);
+		int2 = serial_port_in(port, 0x82);
+		int3 = serial_port_in(port, 0x83);
+	}
+
+	return ret;
+}
+
+/*
+ * This is the serial driver's interrupt routine.
+ *
+ * Arjan thinks the old way was overly complex, so it got simplified.
+ * Alan disagrees, saying that need the complexity to handle the weird
+ * nature of ISA shared interrupts.  (This is a special exception.)
+ *
+ * In order to handle ISA shared interrupts properly, we need to check
+ * that all ports have been serviced, and therefore the ISA interrupt
+ * line has been de-asserted.
+ *
+ * This means we need to loop through all ports. checking that they
+ * don't have an interrupt pending.
+ */
+static irqreturn_t serial8250_interrupt(int irq, void *dev_id)
+{
+	struct irq_info *i = dev_id;
+	struct list_head *l, *end = NULL;
+	int pass_counter = 0, handled = 0;
+
+	DEBUG_INTR("serial8250_interrupt(%d)...", irq);
+
+	spin_lock(&i->lock);
+
+	l = i->head;
+	do {
+		struct uart_8250_port *up;
+		struct uart_port *port;
+
+		up = list_entry(l, struct uart_8250_port, list);
+		port = &up->port;
+
+		if (port->handle_irq(port)) {
+			handled = 1;
+			end = NULL;
+		} else if (end == NULL)
+			end = l;
+
+		l = l->next;
+
+		if (l == i->head && pass_counter++ > PASS_LIMIT) {
+			/* If we hit this, we're dead. */
+			printk_ratelimited(KERN_ERR
+				"serial8250: too much work for irq%d\n", irq);
+			break;
+		}
+	} while (l != end);
+
+	spin_unlock(&i->lock);
+
+	DEBUG_INTR("end.\n");
+
+	return IRQ_RETVAL(handled);
+}
+
+/*
+ * To support ISA shared interrupts, we need to have one interrupt
+ * handler that ensures that the IRQ line has been deasserted
+ * before returning.  Failing to do this will result in the IRQ
+ * line being stuck active, and, since ISA irqs are edge triggered,
+ * no more IRQs will be seen.
+ */
+static void serial_do_unlink(struct irq_info *i, struct uart_8250_port *up)
+{
+	spin_lock_irq(&i->lock);
+
+	if (!list_empty(i->head)) {
+		if (i->head == &up->list)
+			i->head = i->head->next;
+		list_del(&up->list);
+	} else {
+		BUG_ON(i->head != &up->list);
+		i->head = NULL;
+	}
+	spin_unlock_irq(&i->lock);
+	/* List empty so throw away the hash node */
+	if (i->head == NULL) {
+		hlist_del(&i->node);
+		kfree(i);
+	}
+}
+
+static int serial_link_irq_chain(struct uart_8250_port *up)
+{
+	struct hlist_head *h;
+	struct hlist_node *n;
+	struct irq_info *i;
+	int ret, irq_flags = up->port.flags & UPF_SHARE_IRQ ? IRQF_SHARED : 0;
+
+	mutex_lock(&hash_mutex);
+
+	h = &irq_lists[up->port.irq % NR_IRQ_HASH];
+
+	hlist_for_each(n, h) {
+		i = hlist_entry(n, struct irq_info, node);
+		if (i->irq == up->port.irq)
+			break;
+	}
+
+	if (n == NULL) {
+		i = kzalloc(sizeof(struct irq_info), GFP_KERNEL);
+		if (i == NULL) {
+			mutex_unlock(&hash_mutex);
+			return -ENOMEM;
+		}
+		spin_lock_init(&i->lock);
+		i->irq = up->port.irq;
+		hlist_add_head(&i->node, h);
+	}
+	mutex_unlock(&hash_mutex);
+
+	spin_lock_irq(&i->lock);
+
+	if (i->head) {
+		list_add(&up->list, i->head);
+		spin_unlock_irq(&i->lock);
+
+		ret = 0;
+	} else {
+		INIT_LIST_HEAD(&up->list);
+		i->head = &up->list;
+		spin_unlock_irq(&i->lock);
+		irq_flags |= up->port.irqflags;
+		ret = request_irq(up->port.irq, serial8250_interrupt,
+				  irq_flags, "serial", i);
+		if (ret < 0)
+			serial_do_unlink(i, up);
+	}
+
+	return ret;
+}
+
+static void serial_unlink_irq_chain(struct uart_8250_port *up)
+{
+	/*
+	 * yes, some broken gcc emit "warning: 'i' may be used uninitialized"
+	 * but no, we are not going to take a patch that assigns NULL below.
+	 */
+	struct irq_info *i;
+	struct hlist_node *n;
+	struct hlist_head *h;
+
+	mutex_lock(&hash_mutex);
+
+	h = &irq_lists[up->port.irq % NR_IRQ_HASH];
+
+	hlist_for_each(n, h) {
+		i = hlist_entry(n, struct irq_info, node);
+		if (i->irq == up->port.irq)
+			break;
+	}
+
+	BUG_ON(n == NULL);
+	BUG_ON(i->head == NULL);
+
+	if (list_empty(i->head))
+		free_irq(up->port.irq, i);
+
+	serial_do_unlink(i, up);
+	mutex_unlock(&hash_mutex);
+}
+
+/*
+ * This function is used to handle ports that do not have an
+ * interrupt.  This doesn't work very well for 16450's, but gives
+ * barely passable results for a 16550A.  (Although at the expense
+ * of much CPU overhead).
+ */
+static void serial8250_timeout(unsigned long data)
+{
+	struct uart_8250_port *up = (struct uart_8250_port *)data;
+
+	up->port.handle_irq(&up->port);
+	mod_timer(&up->timer, jiffies + uart_poll_timeout(&up->port));
+}
+
+static void serial8250_backup_timeout(unsigned long data)
+{
+	struct uart_8250_port *up = (struct uart_8250_port *)data;
+	unsigned int iir, ier = 0, lsr;
+	unsigned long flags;
+
+	spin_lock_irqsave(&up->port.lock, flags);
+
+	/*
+	 * Must disable interrupts or else we risk racing with the interrupt
+	 * based handler.
+	 */
+	if (up->port.irq) {
+		ier = serial_in(up, UART_IER);
+		serial_out(up, UART_IER, 0);
+	}
+
+	iir = serial_in(up, UART_IIR);
+
+	/*
+	 * This should be a safe test for anyone who doesn't trust the
+	 * IIR bits on their UART, but it's specifically designed for
+	 * the "Diva" UART used on the management processor on many HP
+	 * ia64 and parisc boxes.
+	 */
+	lsr = serial_in(up, UART_LSR);
+	up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;
+	if ((iir & UART_IIR_NO_INT) && (up->ier & UART_IER_THRI) &&
+	    (!uart_circ_empty(&up->port.state->xmit) || up->port.x_char) &&
+	    (lsr & UART_LSR_THRE)) {
+		iir &= ~(UART_IIR_ID | UART_IIR_NO_INT);
+		iir |= UART_IIR_THRI;
+	}
+
+	if (!(iir & UART_IIR_NO_INT))
+		serial8250_tx_chars(up);
+
+	if (up->port.irq)
+		serial_out(up, UART_IER, ier);
+
+	spin_unlock_irqrestore(&up->port.lock, flags);
+
+	/* Standard timer interval plus 0.2s to keep the port running */
+	mod_timer(&up->timer,
+		jiffies + uart_poll_timeout(&up->port) + HZ / 5);
+}
+
+static int univ8250_setup_irq(struct uart_8250_port *up)
+{
+	struct uart_port *port = &up->port;
+	int retval = 0;
+
+	/*
+	 * The above check will only give an accurate result the first time
+	 * the port is opened so this value needs to be preserved.
+	 */
+	if (up->bugs & UART_BUG_THRE) {
+		pr_debug("ttyS%d - using backup timer\n", serial_index(port));
+
+		up->timer.function = serial8250_backup_timeout;
+		up->timer.data = (unsigned long)up;
+		mod_timer(&up->timer, jiffies +
+			  uart_poll_timeout(port) + HZ / 5);
+	}
+
+	/*
+	 * If the "interrupt" for this port doesn't correspond with any
+	 * hardware interrupt, we use a timer-based system.  The original
+	 * driver used to do this with IRQ0.
+	 */
+	if (!port->irq) {
+		up->timer.data = (unsigned long)up;
+		mod_timer(&up->timer, jiffies + uart_poll_timeout(port));
+	} else
+		retval = serial_link_irq_chain(up);
+
+	return retval;
+}
+
+static void univ8250_release_irq(struct uart_8250_port *up)
+{
+	struct uart_port *port = &up->port;
+
+	del_timer_sync(&up->timer);
+	up->timer.function = serial8250_timeout;
+	if (port->irq)
+		serial_unlink_irq_chain(up);
+}
+
+static unsigned int serial8250_tx_empty(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned long flags;
+	unsigned int lsr;
+
+	serial8250_rpm_get(up);
+
+	spin_lock_irqsave(&port->lock, flags);
+	lsr = serial_port_in(port, UART_LSR);
+	up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	serial8250_rpm_put(up);
+
+	return (lsr & BOTH_EMPTY) == BOTH_EMPTY ? TIOCSER_TEMT : 0;
+}
+
+static unsigned int serial8250_get_mctrl(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned int status;
+	unsigned int ret;
+
+	serial8250_rpm_get(up);
+	status = serial8250_modem_status(up);
+	serial8250_rpm_put(up);
+
+	ret = 0;
+	if (status & UART_MSR_DCD)
+		ret |= TIOCM_CAR;
+	if (status & UART_MSR_RI)
+		ret |= TIOCM_RNG;
+	if (status & UART_MSR_DSR)
+		ret |= TIOCM_DSR;
+	if (status & UART_MSR_CTS)
+		ret |= TIOCM_CTS;
+	return ret;
+}
+
+void serial8250_do_set_mctrl(struct uart_port *port, unsigned int mctrl)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned char mcr = 0;
+
+	if (mctrl & TIOCM_RTS)
+		mcr |= UART_MCR_RTS;
+	if (mctrl & TIOCM_DTR)
+		mcr |= UART_MCR_DTR;
+	if (mctrl & TIOCM_OUT1)
+		mcr |= UART_MCR_OUT1;
+	if (mctrl & TIOCM_OUT2)
+		mcr |= UART_MCR_OUT2;
+	if (mctrl & TIOCM_LOOP)
+		mcr |= UART_MCR_LOOP;
+
+	mcr = (mcr & up->mcr_mask) | up->mcr_force | up->mcr;
+
+	serial_port_out(port, UART_MCR, mcr);
+}
+EXPORT_SYMBOL_GPL(serial8250_do_set_mctrl);
+
+static void serial8250_set_mctrl(struct uart_port *port, unsigned int mctrl)
+{
+	if (port->set_mctrl)
+		return port->set_mctrl(port, mctrl);
+	return serial8250_do_set_mctrl(port, mctrl);
+}
+
+static void serial8250_break_ctl(struct uart_port *port, int break_state)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned long flags;
+
+	serial8250_rpm_get(up);
+	spin_lock_irqsave(&port->lock, flags);
+	if (break_state == -1)
+		up->lcr |= UART_LCR_SBC;
+	else
+		up->lcr &= ~UART_LCR_SBC;
+	serial_port_out(port, UART_LCR, up->lcr);
+	spin_unlock_irqrestore(&port->lock, flags);
+	serial8250_rpm_put(up);
+}
+
+/*
+ *	Wait for transmitter & holding register to empty
+ */
+static void wait_for_xmitr(struct uart_8250_port *up, int bits)
+{
+	unsigned int status, tmout = 10000;
+
+	/* Wait up to 10ms for the character(s) to be sent. */
+	for (;;) {
+		status = serial_in(up, UART_LSR);
+
+		up->lsr_saved_flags |= status & LSR_SAVE_FLAGS;
+
+		if ((status & bits) == bits)
+			break;
+		if (--tmout == 0)
+			break;
+		udelay(1);
+	}
+
+	/* Wait up to 1s for flow control if necessary */
+	if (up->port.flags & UPF_CONS_FLOW) {
+		unsigned int tmout;
+		for (tmout = 1000000; tmout; tmout--) {
+			unsigned int msr = serial_in(up, UART_MSR);
+			up->msr_saved_flags |= msr & MSR_SAVE_FLAGS;
+			if (msr & UART_MSR_CTS)
+				break;
+			udelay(1);
+			touch_nmi_watchdog();
+		}
+	}
+}
+
+#ifdef CONFIG_CONSOLE_POLL
+/*
+ * Console polling routines for writing and reading from the uart while
+ * in an interrupt or debug context.
+ */
+
+static int serial8250_get_poll_char(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned char lsr;
+	int status;
+
+	serial8250_rpm_get(up);
+
+	lsr = serial_port_in(port, UART_LSR);
+
+	if (!(lsr & UART_LSR_DR)) {
+		status = NO_POLL_CHAR;
+		goto out;
+	}
+
+	status = serial_port_in(port, UART_RX);
+out:
+	serial8250_rpm_put(up);
+	return status;
+}
+
+
+static void serial8250_put_poll_char(struct uart_port *port,
+			 unsigned char c)
+{
+	unsigned int ier;
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	serial8250_rpm_get(up);
+	/*
+	 *	First save the IER then disable the interrupts
+	 */
+	ier = serial_port_in(port, UART_IER);
+	if (up->capabilities & UART_CAP_UUE)
+		serial_port_out(port, UART_IER, UART_IER_UUE);
+	else
+		serial_port_out(port, UART_IER, 0);
+
+	wait_for_xmitr(up, BOTH_EMPTY);
+	/*
+	 *	Send the character out.
+	 */
+	serial_port_out(port, UART_TX, c);
+
+	/*
+	 *	Finally, wait for transmitter to become empty
+	 *	and restore the IER
+	 */
+	wait_for_xmitr(up, BOTH_EMPTY);
+	serial_port_out(port, UART_IER, ier);
+	serial8250_rpm_put(up);
+}
+
+#endif /* CONFIG_CONSOLE_POLL */
+
+int serial8250_do_startup(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned long flags;
+	unsigned char lsr, iir;
+	int retval;
+
+	if (port->type == PORT_8250_CIR)
+		return -ENODEV;
+
+	if (!port->fifosize)
+		port->fifosize = uart_config[port->type].fifo_size;
+	if (!up->tx_loadsz)
+		up->tx_loadsz = uart_config[port->type].tx_loadsz;
+	if (!up->capabilities)
+		up->capabilities = uart_config[port->type].flags;
+	up->mcr = 0;
+
+	if (port->iotype != up->cur_iotype)
+		set_io_from_upio(port);
+
+	serial8250_rpm_get(up);
+	if (port->type == PORT_16C950) {
+		/* Wake up and initialize UART */
+		up->acr = 0;
+		serial_port_out(port, UART_LCR, UART_LCR_CONF_MODE_B);
+		serial_port_out(port, UART_EFR, UART_EFR_ECB);
+		serial_port_out(port, UART_IER, 0);
+		serial_port_out(port, UART_LCR, 0);
+		serial_icr_write(up, UART_CSR, 0); /* Reset the UART */
+		serial_port_out(port, UART_LCR, UART_LCR_CONF_MODE_B);
+		serial_port_out(port, UART_EFR, UART_EFR_ECB);
+		serial_port_out(port, UART_LCR, 0);
+	}
+
+#ifdef CONFIG_SERIAL_8250_RSA
+	/*
+	 * If this is an RSA port, see if we can kick it up to the
+	 * higher speed clock.
+	 */
+	enable_rsa(up);
+#endif
+	/*
+	 * Clear the FIFO buffers and disable them.
+	 * (they will be reenabled in set_termios())
+	 */
+	serial8250_clear_fifos(up);
+
+	/*
+	 * Clear the interrupt registers.
+	 */
+	serial_port_in(port, UART_LSR);
+	serial_port_in(port, UART_RX);
+	serial_port_in(port, UART_IIR);
+	serial_port_in(port, UART_MSR);
+
+	/*
+	 * At this point, there's no way the LSR could still be 0xff;
+	 * if it is, then bail out, because there's likely no UART
+	 * here.
+	 */
+	if (!(port->flags & UPF_BUGGY_UART) &&
+	    (serial_port_in(port, UART_LSR) == 0xff)) {
+		printk_ratelimited(KERN_INFO "ttyS%d: LSR safety check engaged!\n",
+				   serial_index(port));
+		retval = -ENODEV;
+		goto out;
+	}
+
+	/*
+	 * For a XR16C850, we need to set the trigger levels
+	 */
+	if (port->type == PORT_16850) {
+		unsigned char fctr;
+
+		serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+
+		fctr = serial_in(up, UART_FCTR) & ~(UART_FCTR_RX|UART_FCTR_TX);
+		serial_port_out(port, UART_FCTR,
+				fctr | UART_FCTR_TRGD | UART_FCTR_RX);
+		serial_port_out(port, UART_TRG, UART_TRG_96);
+		serial_port_out(port, UART_FCTR,
+				fctr | UART_FCTR_TRGD | UART_FCTR_TX);
+		serial_port_out(port, UART_TRG, UART_TRG_96);
+
+		serial_port_out(port, UART_LCR, 0);
+	}
+
+	if (port->irq) {
+		unsigned char iir1;
+		/*
+		 * Test for UARTs that do not reassert THRE when the
+		 * transmitter is idle and the interrupt has already
+		 * been cleared.  Real 16550s should always reassert
+		 * this interrupt whenever the transmitter is idle and
+		 * the interrupt is enabled.  Delays are necessary to
+		 * allow register changes to become visible.
+		 */
+		spin_lock_irqsave(&port->lock, flags);
+		if (up->port.irqflags & IRQF_SHARED)
+			disable_irq_nosync(port->irq);
+
+		wait_for_xmitr(up, UART_LSR_THRE);
+		serial_port_out_sync(port, UART_IER, UART_IER_THRI);
+		udelay(1); /* allow THRE to set */
+		iir1 = serial_port_in(port, UART_IIR);
+		serial_port_out(port, UART_IER, 0);
+		serial_port_out_sync(port, UART_IER, UART_IER_THRI);
+		udelay(1); /* allow a working UART time to re-assert THRE */
+		iir = serial_port_in(port, UART_IIR);
+		serial_port_out(port, UART_IER, 0);
+
+		if (port->irqflags & IRQF_SHARED)
+			enable_irq(port->irq);
+		spin_unlock_irqrestore(&port->lock, flags);
+
+		/*
+		 * If the interrupt is not reasserted, or we otherwise
+		 * don't trust the iir, setup a timer to kick the UART
+		 * on a regular basis.
+		 */
+		if ((!(iir1 & UART_IIR_NO_INT) && (iir & UART_IIR_NO_INT)) ||
+		    up->port.flags & UPF_BUG_THRE) {
+			up->bugs |= UART_BUG_THRE;
+		}
+	}
+
+	retval = up->ops->setup_irq(up);
+	if (retval)
+		goto out;
+
+	/*
+	 * Now, initialize the UART
+	 */
+	serial_port_out(port, UART_LCR, UART_LCR_WLEN8);
+
+	spin_lock_irqsave(&port->lock, flags);
+	if (up->port.flags & UPF_FOURPORT) {
+		if (!up->port.irq)
+			up->port.mctrl |= TIOCM_OUT1;
+	} else
+		/*
+		 * Most PC uarts need OUT2 raised to enable interrupts.
+		 */
+		if (port->irq)
+			up->port.mctrl |= TIOCM_OUT2;
+
+	serial8250_set_mctrl(port, port->mctrl);
+
+	/* Serial over Lan (SoL) hack:
+	   Intel 8257x Gigabit ethernet chips have a
+	   16550 emulation, to be used for Serial Over Lan.
+	   Those chips take a longer time than a normal
+	   serial device to signalize that a transmission
+	   data was queued. Due to that, the above test generally
+	   fails. One solution would be to delay the reading of
+	   iir. However, this is not reliable, since the timeout
+	   is variable. So, let's just don't test if we receive
+	   TX irq. This way, we'll never enable UART_BUG_TXEN.
+	 */
+	if (up->port.flags & UPF_NO_TXEN_TEST)
+		goto dont_test_tx_en;
+
+	/*
+	 * Do a quick test to see if we receive an
+	 * interrupt when we enable the TX irq.
+	 */
+	serial_port_out(port, UART_IER, UART_IER_THRI);
+	lsr = serial_port_in(port, UART_LSR);
+	iir = serial_port_in(port, UART_IIR);
+	serial_port_out(port, UART_IER, 0);
+
+	if (lsr & UART_LSR_TEMT && iir & UART_IIR_NO_INT) {
+		if (!(up->bugs & UART_BUG_TXEN)) {
+			up->bugs |= UART_BUG_TXEN;
+			pr_debug("ttyS%d - enabling bad tx status workarounds\n",
+				 serial_index(port));
+		}
+	} else {
+		up->bugs &= ~UART_BUG_TXEN;
+	}
+
+dont_test_tx_en:
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	/*
+	 * Clear the interrupt registers again for luck, and clear the
+	 * saved flags to avoid getting false values from polling
+	 * routines or the previous session.
+	 */
+	serial_port_in(port, UART_LSR);
+	serial_port_in(port, UART_RX);
+	serial_port_in(port, UART_IIR);
+	serial_port_in(port, UART_MSR);
+	up->lsr_saved_flags = 0;
+	up->msr_saved_flags = 0;
+
+	/*
+	 * Request DMA channels for both RX and TX.
+	 */
+	if (up->dma) {
+		retval = serial8250_request_dma(up);
+		if (retval) {
+			pr_warn_ratelimited("ttyS%d - failed to request DMA\n",
+					    serial_index(port));
+			up->dma = NULL;
+		}
+	}
+
+	/*
+	 * Finally, enable interrupts.  Note: Modem status interrupts
+	 * are set via set_termios(), which will be occurring imminently
+	 * anyway, so we don't enable them here.
+	 */
+	up->ier = UART_IER_RLSI | UART_IER_RDI;
+	serial_port_out(port, UART_IER, up->ier);
+
+	if (port->flags & UPF_FOURPORT) {
+		unsigned int icp;
+		/*
+		 * Enable interrupts on the AST Fourport board
+		 */
+		icp = (port->iobase & 0xfe0) | 0x01f;
+		outb_p(0x80, icp);
+		inb_p(icp);
+	}
+	retval = 0;
+out:
+	serial8250_rpm_put(up);
+	return retval;
+}
+EXPORT_SYMBOL_GPL(serial8250_do_startup);
+
+static int serial8250_startup(struct uart_port *port)
+{
+	if (port->startup)
+		return port->startup(port);
+	return serial8250_do_startup(port);
+}
+
+void serial8250_do_shutdown(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned long flags;
+
+	serial8250_rpm_get(up);
+	/*
+	 * Disable interrupts from this port
+	 */
+	up->ier = 0;
+	serial_port_out(port, UART_IER, 0);
+
+	if (up->dma)
+		serial8250_release_dma(up);
+
+	spin_lock_irqsave(&port->lock, flags);
+	if (port->flags & UPF_FOURPORT) {
+		/* reset interrupts on the AST Fourport board */
+		inb((port->iobase & 0xfe0) | 0x1f);
+		port->mctrl |= TIOCM_OUT1;
+	} else
+		port->mctrl &= ~TIOCM_OUT2;
+
+	serial8250_set_mctrl(port, port->mctrl);
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	/*
+	 * Disable break condition and FIFOs
+	 */
+	serial_port_out(port, UART_LCR,
+			serial_port_in(port, UART_LCR) & ~UART_LCR_SBC);
+	serial8250_clear_fifos(up);
+
+#ifdef CONFIG_SERIAL_8250_RSA
+	/*
+	 * Reset the RSA board back to 115kbps compat mode.
+	 */
+	disable_rsa(up);
+#endif
+
+	/*
+	 * Read data port to reset things, and then unlink from
+	 * the IRQ chain.
+	 */
+	serial_port_in(port, UART_RX);
+	serial8250_rpm_put(up);
+
+	up->ops->release_irq(up);
+}
+EXPORT_SYMBOL_GPL(serial8250_do_shutdown);
+
+static void serial8250_shutdown(struct uart_port *port)
+{
+	if (port->shutdown)
+		port->shutdown(port);
+	else
+		serial8250_do_shutdown(port);
+}
+
+/*
+ * XR17V35x UARTs have an extra fractional divisor register (DLD)
+ * Calculate divisor with extra 4-bit fractional portion
+ */
+static unsigned int xr17v35x_get_divisor(struct uart_8250_port *up,
+					 unsigned int baud,
+					 unsigned int *frac)
+{
+	struct uart_port *port = &up->port;
+	unsigned int quot_16;
+
+	quot_16 = DIV_ROUND_CLOSEST(port->uartclk, baud);
+	*frac = quot_16 & 0x0f;
+
+	return quot_16 >> 4;
+}
+
+static unsigned int serial8250_get_divisor(struct uart_8250_port *up,
+					   unsigned int baud,
+					   unsigned int *frac)
+{
+	struct uart_port *port = &up->port;
+	unsigned int quot;
+
+	/*
+	 * Handle magic divisors for baud rates above baud_base on
+	 * SMSC SuperIO chips.
+	 *
+	 */
+	if ((port->flags & UPF_MAGIC_MULTIPLIER) &&
+	    baud == (port->uartclk/4))
+		quot = 0x8001;
+	else if ((port->flags & UPF_MAGIC_MULTIPLIER) &&
+		 baud == (port->uartclk/8))
+		quot = 0x8002;
+	else if (up->port.type == PORT_XR17V35X)
+		quot = xr17v35x_get_divisor(up, baud, frac);
+	else
+		quot = uart_get_divisor(port, baud);
+
+	/*
+	 * Oxford Semi 952 rev B workaround
+	 */
+	if (up->bugs & UART_BUG_QUOT && (quot & 0xff) == 0)
+		quot++;
+
+	return quot;
+}
+
+static unsigned char serial8250_compute_lcr(struct uart_8250_port *up,
+					    tcflag_t c_cflag)
+{
+	unsigned char cval;
+
+	switch (c_cflag & CSIZE) {
+	case CS5:
+		cval = UART_LCR_WLEN5;
+		break;
+	case CS6:
+		cval = UART_LCR_WLEN6;
+		break;
+	case CS7:
+		cval = UART_LCR_WLEN7;
+		break;
+	default:
+	case CS8:
+		cval = UART_LCR_WLEN8;
+		break;
+	}
+
+	if (c_cflag & CSTOPB)
+		cval |= UART_LCR_STOP;
+	if (c_cflag & PARENB) {
+		cval |= UART_LCR_PARITY;
+		if (up->bugs & UART_BUG_PARITY)
+			up->fifo_bug = true;
+	}
+	if (!(c_cflag & PARODD))
+		cval |= UART_LCR_EPAR;
+#ifdef CMSPAR
+	if (c_cflag & CMSPAR)
+		cval |= UART_LCR_SPAR;
+#endif
+
+	return cval;
+}
+
+static void serial8250_set_divisor(struct uart_port *port, unsigned int baud,
+			    unsigned int quot, unsigned int quot_frac)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	/* Workaround to enable 115200 baud on OMAP1510 internal ports */
+	if (is_omap1510_8250(up)) {
+		if (baud == 115200) {
+			quot = 1;
+			serial_port_out(port, UART_OMAP_OSC_12M_SEL, 1);
+		} else
+			serial_port_out(port, UART_OMAP_OSC_12M_SEL, 0);
+	}
+
+	/*
+	 * For NatSemi, switch to bank 2 not bank 1, to avoid resetting EXCR2,
+	 * otherwise just set DLAB
+	 */
+	if (up->capabilities & UART_NATSEMI)
+		serial_port_out(port, UART_LCR, 0xe0);
+	else
+		serial_port_out(port, UART_LCR, up->lcr | UART_LCR_DLAB);
+
+	serial_dl_write(up, quot);
+
+	/* XR17V35x UARTs have an extra fractional divisor register (DLD) */
+	if (up->port.type == PORT_XR17V35X)
+		serial_port_out(port, 0x2, quot_frac);
+}
+
+void
+serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
+		          struct ktermios *old)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned char cval;
+	unsigned long flags;
+	unsigned int baud, quot, frac = 0;
+
+	cval = serial8250_compute_lcr(up, termios->c_cflag);
+
+	/*
+	 * Ask the core to calculate the divisor for us.
+	 */
+	baud = uart_get_baud_rate(port, termios, old,
+				  port->uartclk / 16 / 0xffff,
+				  port->uartclk / 16);
+	quot = serial8250_get_divisor(up, baud, &frac);
+
+	/*
+	 * Ok, we're now changing the port state.  Do it with
+	 * interrupts disabled.
+	 */
+	serial8250_rpm_get(up);
+	spin_lock_irqsave(&port->lock, flags);
+
+	up->lcr = cval;					/* Save computed LCR */
+
+	if (up->capabilities & UART_CAP_FIFO && port->fifosize > 1) {
+		/* NOTE: If fifo_bug is not set, a user can set RX_trigger. */
+		if ((baud < 2400 && !up->dma) || up->fifo_bug) {
+			up->fcr &= ~UART_FCR_TRIGGER_MASK;
+			up->fcr |= UART_FCR_TRIGGER_1;
+		}
+	}
+
+	/*
+	 * MCR-based auto flow control.  When AFE is enabled, RTS will be
+	 * deasserted when the receive FIFO contains more characters than
+	 * the trigger, or the MCR RTS bit is cleared.  In the case where
+	 * the remote UART is not using CTS auto flow control, we must
+	 * have sufficient FIFO entries for the latency of the remote
+	 * UART to respond.  IOW, at least 32 bytes of FIFO.
+	 */
+	if (up->capabilities & UART_CAP_AFE && port->fifosize >= 32) {
+		up->mcr &= ~UART_MCR_AFE;
+		if (termios->c_cflag & CRTSCTS)
+			up->mcr |= UART_MCR_AFE;
+	}
+
+	/*
+	 * Update the per-port timeout.
+	 */
+	uart_update_timeout(port, termios->c_cflag, baud);
+
+	port->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
+	if (termios->c_iflag & INPCK)
+		port->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
+	if (termios->c_iflag & (IGNBRK | BRKINT | PARMRK))
+		port->read_status_mask |= UART_LSR_BI;
+
+	/*
+	 * Characteres to ignore
+	 */
+	port->ignore_status_mask = 0;
+	if (termios->c_iflag & IGNPAR)
+		port->ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
+	if (termios->c_iflag & IGNBRK) {
+		port->ignore_status_mask |= UART_LSR_BI;
+		/*
+		 * If we're ignoring parity and break indicators,
+		 * ignore overruns too (for real raw support).
+		 */
+		if (termios->c_iflag & IGNPAR)
+			port->ignore_status_mask |= UART_LSR_OE;
+	}
+
+	/*
+	 * ignore all characters if CREAD is not set
+	 */
+	if ((termios->c_cflag & CREAD) == 0)
+		port->ignore_status_mask |= UART_LSR_DR;
+
+	/*
+	 * CTS flow control flag and modem status interrupts
+	 */
+	up->ier &= ~UART_IER_MSI;
+	if (!(up->bugs & UART_BUG_NOMSR) &&
+			UART_ENABLE_MS(&up->port, termios->c_cflag))
+		up->ier |= UART_IER_MSI;
+	if (up->capabilities & UART_CAP_UUE)
+		up->ier |= UART_IER_UUE;
+	if (up->capabilities & UART_CAP_RTOIE)
+		up->ier |= UART_IER_RTOIE;
+
+	serial_port_out(port, UART_IER, up->ier);
+
+	if (up->capabilities & UART_CAP_EFR) {
+		unsigned char efr = 0;
+		/*
+		 * TI16C752/Startech hardware flow control.  FIXME:
+		 * - TI16C752 requires control thresholds to be set.
+		 * - UART_MCR_RTS is ineffective if auto-RTS mode is enabled.
+		 */
+		if (termios->c_cflag & CRTSCTS)
+			efr |= UART_EFR_CTS;
+
+		serial_port_out(port, UART_LCR, UART_LCR_CONF_MODE_B);
+		if (port->flags & UPF_EXAR_EFR)
+			serial_port_out(port, UART_XR_EFR, efr);
+		else
+			serial_port_out(port, UART_EFR, efr);
+	}
+
+	serial8250_set_divisor(port, baud, quot, frac);
+
+	/*
+	 * LCR DLAB must be set to enable 64-byte FIFO mode. If the FCR
+	 * is written without DLAB set, this mode will be disabled.
+	 */
+	if (port->type == PORT_16750)
+		serial_port_out(port, UART_FCR, up->fcr);
+
+	serial_port_out(port, UART_LCR, up->lcr);	/* reset DLAB */
+	if (port->type != PORT_16750) {
+		/* emulated UARTs (Lucent Venus 167x) need two steps */
+		if (up->fcr & UART_FCR_ENABLE_FIFO)
+			serial_port_out(port, UART_FCR, UART_FCR_ENABLE_FIFO);
+		serial_port_out(port, UART_FCR, up->fcr);	/* set fcr */
+	}
+	serial8250_set_mctrl(port, port->mctrl);
+	spin_unlock_irqrestore(&port->lock, flags);
+	serial8250_rpm_put(up);
+
+	/* Don't rewrite B0 */
+	if (tty_termios_baud_rate(termios))
+		tty_termios_encode_baud_rate(termios, baud, baud);
+}
+EXPORT_SYMBOL(serial8250_do_set_termios);
+
+static void
+serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
+		       struct ktermios *old)
+{
+	if (port->set_termios)
+		port->set_termios(port, termios, old);
+	else
+		serial8250_do_set_termios(port, termios, old);
+}
+
+static void
+serial8250_set_ldisc(struct uart_port *port, struct ktermios *termios)
+{
+	if (termios->c_line == N_PPS) {
+		port->flags |= UPF_HARDPPS_CD;
+		spin_lock_irq(&port->lock);
+		serial8250_enable_ms(port);
+		spin_unlock_irq(&port->lock);
+	} else {
+		port->flags &= ~UPF_HARDPPS_CD;
+		if (!UART_ENABLE_MS(port, termios->c_cflag)) {
+			spin_lock_irq(&port->lock);
+			serial8250_disable_ms(port);
+			spin_unlock_irq(&port->lock);
+		}
+	}
+}
+
+
+void serial8250_do_pm(struct uart_port *port, unsigned int state,
+		      unsigned int oldstate)
+{
+	struct uart_8250_port *p = up_to_u8250p(port);
+
+	serial8250_set_sleep(p, state != 0);
+}
+EXPORT_SYMBOL(serial8250_do_pm);
+
+static void
+serial8250_pm(struct uart_port *port, unsigned int state,
+	      unsigned int oldstate)
+{
+	if (port->pm)
+		port->pm(port, state, oldstate);
+	else
+		serial8250_do_pm(port, state, oldstate);
+}
+
+static unsigned int serial8250_port_size(struct uart_8250_port *pt)
+{
+	if (pt->port.mapsize)
+		return pt->port.mapsize;
+	if (pt->port.iotype == UPIO_AU) {
+		if (pt->port.type == PORT_RT2880)
+			return 0x100;
+		return 0x1000;
+	}
+	if (is_omap1_8250(pt))
+		return 0x16 << pt->port.regshift;
+
+	return 8 << pt->port.regshift;
+}
+
+/*
+ * Resource handling.
+ */
+static int serial8250_request_std_resource(struct uart_8250_port *up)
+{
+	unsigned int size = serial8250_port_size(up);
+	struct uart_port *port = &up->port;
+	int ret = 0;
+
+	switch (port->iotype) {
+	case UPIO_AU:
+	case UPIO_TSI:
+	case UPIO_MEM32:
+	case UPIO_MEM32BE:
+	case UPIO_MEM:
+		if (!port->mapbase)
+			break;
+
+		if (!request_mem_region(port->mapbase, size, "serial")) {
+			ret = -EBUSY;
+			break;
+		}
+
+		if (port->flags & UPF_IOREMAP) {
+			port->membase = ioremap_nocache(port->mapbase, size);
+			if (!port->membase) {
+				release_mem_region(port->mapbase, size);
+				ret = -ENOMEM;
+			}
+		}
+		break;
+
+	case UPIO_HUB6:
+	case UPIO_PORT:
+		if (!request_region(port->iobase, size, "serial"))
+			ret = -EBUSY;
+		break;
+	}
+	return ret;
+}
+
+static void serial8250_release_std_resource(struct uart_8250_port *up)
+{
+	unsigned int size = serial8250_port_size(up);
+	struct uart_port *port = &up->port;
+
+	switch (port->iotype) {
+	case UPIO_AU:
+	case UPIO_TSI:
+	case UPIO_MEM32:
+	case UPIO_MEM32BE:
+	case UPIO_MEM:
+		if (!port->mapbase)
+			break;
+
+		if (port->flags & UPF_IOREMAP) {
+			iounmap(port->membase);
+			port->membase = NULL;
+		}
+
+		release_mem_region(port->mapbase, size);
+		break;
+
+	case UPIO_HUB6:
+	case UPIO_PORT:
+		release_region(port->iobase, size);
+		break;
+	}
+}
+
+#ifdef CONFIG_SERIAL_8250_RSA
+static int serial8250_request_rsa_resource(struct uart_8250_port *up)
+{
+	unsigned long start = UART_RSA_BASE << up->port.regshift;
+	unsigned int size = 8 << up->port.regshift;
+	struct uart_port *port = &up->port;
+	int ret = -EINVAL;
+
+	switch (port->iotype) {
+	case UPIO_HUB6:
+	case UPIO_PORT:
+		start += port->iobase;
+		if (request_region(start, size, "serial-rsa"))
+			ret = 0;
+		else
+			ret = -EBUSY;
+		break;
+	}
+
+	return ret;
+}
+
+static void serial8250_release_rsa_resource(struct uart_8250_port *up)
+{
+	unsigned long offset = UART_RSA_BASE << up->port.regshift;
+	unsigned int size = 8 << up->port.regshift;
+	struct uart_port *port = &up->port;
+
+	switch (port->iotype) {
+	case UPIO_HUB6:
+	case UPIO_PORT:
+		release_region(port->iobase + offset, size);
+		break;
+	}
+}
+#endif
+
+static void serial8250_release_port(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	serial8250_release_std_resource(up);
+}
+
+static int serial8250_request_port(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	int ret;
+
+	if (port->type == PORT_8250_CIR)
+		return -ENODEV;
+
+	ret = serial8250_request_std_resource(up);
+
+	return ret;
+}
+
+static int fcr_get_rxtrig_bytes(struct uart_8250_port *up)
+{
+	const struct serial8250_config *conf_type = &uart_config[up->port.type];
+	unsigned char bytes;
+
+	bytes = conf_type->rxtrig_bytes[UART_FCR_R_TRIG_BITS(up->fcr)];
+
+	return bytes ? bytes : -EOPNOTSUPP;
+}
+
+static int bytes_to_fcr_rxtrig(struct uart_8250_port *up, unsigned char bytes)
+{
+	const struct serial8250_config *conf_type = &uart_config[up->port.type];
+	int i;
+
+	if (!conf_type->rxtrig_bytes[UART_FCR_R_TRIG_BITS(UART_FCR_R_TRIG_00)])
+		return -EOPNOTSUPP;
+
+	for (i = 1; i < UART_FCR_R_TRIG_MAX_STATE; i++) {
+		if (bytes < conf_type->rxtrig_bytes[i])
+			/* Use the nearest lower value */
+			return (--i) << UART_FCR_R_TRIG_SHIFT;
+	}
+
+	return UART_FCR_R_TRIG_11;
+}
+
+static int do_get_rxtrig(struct tty_port *port)
+{
+	struct uart_state *state = container_of(port, struct uart_state, port);
+	struct uart_port *uport = state->uart_port;
+	struct uart_8250_port *up =
+		container_of(uport, struct uart_8250_port, port);
+
+	if (!(up->capabilities & UART_CAP_FIFO) || uport->fifosize <= 1)
+		return -EINVAL;
+
+	return fcr_get_rxtrig_bytes(up);
+}
+
+static int do_serial8250_get_rxtrig(struct tty_port *port)
+{
+	int rxtrig_bytes;
+
+	mutex_lock(&port->mutex);
+	rxtrig_bytes = do_get_rxtrig(port);
+	mutex_unlock(&port->mutex);
+
+	return rxtrig_bytes;
+}
+
+static ssize_t serial8250_get_attr_rx_trig_bytes(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	struct tty_port *port = dev_get_drvdata(dev);
+	int rxtrig_bytes;
+
+	rxtrig_bytes = do_serial8250_get_rxtrig(port);
+	if (rxtrig_bytes < 0)
+		return rxtrig_bytes;
+
+	return snprintf(buf, PAGE_SIZE, "%d\n", rxtrig_bytes);
+}
+
+static int do_set_rxtrig(struct tty_port *port, unsigned char bytes)
+{
+	struct uart_state *state = container_of(port, struct uart_state, port);
+	struct uart_port *uport = state->uart_port;
+	struct uart_8250_port *up =
+		container_of(uport, struct uart_8250_port, port);
+	int rxtrig;
+
+	if (!(up->capabilities & UART_CAP_FIFO) || uport->fifosize <= 1 ||
+	    up->fifo_bug)
+		return -EINVAL;
+
+	rxtrig = bytes_to_fcr_rxtrig(up, bytes);
+	if (rxtrig < 0)
+		return rxtrig;
+
+	serial8250_clear_fifos(up);
+	up->fcr &= ~UART_FCR_TRIGGER_MASK;
+	up->fcr |= (unsigned char)rxtrig;
+	serial_out(up, UART_FCR, up->fcr);
+	return 0;
+}
+
+static int do_serial8250_set_rxtrig(struct tty_port *port, unsigned char bytes)
+{
+	int ret;
+
+	mutex_lock(&port->mutex);
+	ret = do_set_rxtrig(port, bytes);
+	mutex_unlock(&port->mutex);
+
+	return ret;
+}
+
+static ssize_t serial8250_set_attr_rx_trig_bytes(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct tty_port *port = dev_get_drvdata(dev);
+	unsigned char bytes;
+	int ret;
+
+	if (!count)
+		return -EINVAL;
+
+	ret = kstrtou8(buf, 10, &bytes);
+	if (ret < 0)
+		return ret;
+
+	ret = do_serial8250_set_rxtrig(port, bytes);
+	if (ret < 0)
+		return ret;
+
+	return count;
+}
+
+static DEVICE_ATTR(rx_trig_bytes, S_IRUSR | S_IWUSR | S_IRGRP,
+		   serial8250_get_attr_rx_trig_bytes,
+		   serial8250_set_attr_rx_trig_bytes);
+
+static struct attribute *serial8250_dev_attrs[] = {
+	&dev_attr_rx_trig_bytes.attr,
+	NULL,
+	};
+
+static struct attribute_group serial8250_dev_attr_group = {
+	.attrs = serial8250_dev_attrs,
+	};
+
+static void register_dev_spec_attr_grp(struct uart_8250_port *up)
+{
+	const struct serial8250_config *conf_type = &uart_config[up->port.type];
+
+	if (conf_type->rxtrig_bytes[0])
+		up->port.attr_group = &serial8250_dev_attr_group;
+}
+
+static void serial8250_config_port(struct uart_port *port, int flags)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	int ret;
+
+	if (port->type == PORT_8250_CIR)
+		return;
+
+	/*
+	 * Find the region that we can probe for.  This in turn
+	 * tells us whether we can probe for the type of port.
+	 */
+	ret = serial8250_request_std_resource(up);
+	if (ret < 0)
+		return;
+
+	if (port->iotype != up->cur_iotype)
+		set_io_from_upio(port);
+
+	if (flags & UART_CONFIG_TYPE)
+		autoconfig(up);
+
+	/* if access method is AU, it is a 16550 with a quirk */
+	if (port->type == PORT_16550A && port->iotype == UPIO_AU)
+		up->bugs |= UART_BUG_NOMSR;
+
+	/* HW bugs may trigger IRQ while IIR == NO_INT */
+	if (port->type == PORT_TEGRA)
+		up->bugs |= UART_BUG_NOMSR;
+
+	if (port->type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ)
+		autoconfig_irq(up);
+
+	if (port->type == PORT_UNKNOWN)
+		serial8250_release_std_resource(up);
+
+	/* Fixme: probably not the best place for this */
+	if ((port->type == PORT_XR17V35X) ||
+	   (port->type == PORT_XR17D15X))
+		port->handle_irq = exar_handle_irq;
+
+	register_dev_spec_attr_grp(up);
+	up->fcr = uart_config[up->port.type].fcr;
+}
+
+static int
+serial8250_verify_port(struct uart_port *port, struct serial_struct *ser)
+{
+	if (ser->irq >= nr_irqs || ser->irq < 0 ||
+	    ser->baud_base < 9600 || ser->type < PORT_UNKNOWN ||
+	    ser->type >= ARRAY_SIZE(uart_config) || ser->type == PORT_CIRRUS ||
+	    ser->type == PORT_STARTECH)
+		return -EINVAL;
+	return 0;
+}
+
+static const char *
+serial8250_type(struct uart_port *port)
+{
+	int type = port->type;
+
+	if (type >= ARRAY_SIZE(uart_config))
+		type = 0;
+	return uart_config[type].name;
+}
+
+static const struct uart_ops serial8250_pops = {
+	.tx_empty	= serial8250_tx_empty,
+	.set_mctrl	= serial8250_set_mctrl,
+	.get_mctrl	= serial8250_get_mctrl,
+	.stop_tx	= serial8250_stop_tx,
+	.start_tx	= serial8250_start_tx,
+	.throttle	= serial8250_throttle,
+	.unthrottle	= serial8250_unthrottle,
+	.stop_rx	= serial8250_stop_rx,
+	.enable_ms	= serial8250_enable_ms,
+	.break_ctl	= serial8250_break_ctl,
+	.startup	= serial8250_startup,
+	.shutdown	= serial8250_shutdown,
+	.set_termios	= serial8250_set_termios,
+	.set_ldisc	= serial8250_set_ldisc,
+	.pm		= serial8250_pm,
+	.type		= serial8250_type,
+	.release_port	= serial8250_release_port,
+	.request_port	= serial8250_request_port,
+	.config_port	= serial8250_config_port,
+	.verify_port	= serial8250_verify_port,
+#ifdef CONFIG_CONSOLE_POLL
+	.poll_get_char = serial8250_get_poll_char,
+	.poll_put_char = serial8250_put_poll_char,
+#endif
+};
+
+static const struct uart_ops *base_ops;
+static struct uart_ops univ8250_port_ops;
+
+static const struct uart_8250_ops univ8250_driver_ops = {
+	.setup_irq	= univ8250_setup_irq,
+	.release_irq	= univ8250_release_irq,
+};
+
+static struct uart_8250_port serial8250_ports[UART_NR];
+
+/**
+ * serial8250_get_port - retrieve struct uart_8250_port
+ * @line: serial line number
+ *
+ * This function retrieves struct uart_8250_port for the specific line.
+ * This struct *must* *not* be used to perform a 8250 or serial core operation
+ * which is not accessible otherwise. Its only purpose is to make the struct
+ * accessible to the runtime-pm callbacks for context suspend/restore.
+ * The lock assumption made here is none because runtime-pm suspend/resume
+ * callbacks should not be invoked if there is any operation performed on the
+ * port.
+ */
+struct uart_8250_port *serial8250_get_port(int line)
+{
+	return &serial8250_ports[line];
+}
+EXPORT_SYMBOL_GPL(serial8250_get_port);
+
+static void (*serial8250_isa_config)(int port, struct uart_port *up,
+	unsigned short *capabilities);
+
+void serial8250_set_isa_configurator(
+	void (*v)(int port, struct uart_port *up, unsigned short *capabilities))
+{
+	serial8250_isa_config = v;
+}
+EXPORT_SYMBOL(serial8250_set_isa_configurator);
+
+static void serial8250_init_port(struct uart_8250_port *up)
+{
+	struct uart_port *port = &up->port;
+
+	spin_lock_init(&port->lock);
+	port->ops = &serial8250_pops;
+
+	up->cur_iotype = 0xFF;
+}
+
+static void serial8250_set_defaults(struct uart_8250_port *up)
+{
+	struct uart_port *port = &up->port;
+
+	if (up->port.flags & UPF_FIXED_TYPE) {
+		unsigned int type = up->port.type;
+
+		if (!up->port.fifosize)
+			up->port.fifosize = uart_config[type].fifo_size;
+		if (!up->tx_loadsz)
+			up->tx_loadsz = uart_config[type].tx_loadsz;
+		if (!up->capabilities)
+			up->capabilities = uart_config[type].flags;
+	}
+
+	set_io_from_upio(port);
+
+	/* default dma handlers */
+	if (up->dma) {
+		if (!up->dma->tx_dma)
+			up->dma->tx_dma = serial8250_tx_dma;
+		if (!up->dma->rx_dma)
+			up->dma->rx_dma = serial8250_rx_dma;
+	}
+}
+
+#ifdef CONFIG_SERIAL_8250_RSA
+
+static void univ8250_config_port(struct uart_port *port, int flags)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	up->probe &= ~UART_PROBE_RSA;
+	if (port->type == PORT_RSA) {
+		if (serial8250_request_rsa_resource(up) == 0)
+			up->probe |= UART_PROBE_RSA;
+	} else if (flags & UART_CONFIG_TYPE) {
+		int i;
+
+		for (i = 0; i < probe_rsa_count; i++) {
+			if (probe_rsa[i] == up->port.iobase) {
+				if (serial8250_request_rsa_resource(up) == 0)
+					up->probe |= UART_PROBE_RSA;
+				break;
+			}
+		}
+	}
+
+	base_ops->config_port(port, flags);
+
+	if (port->type != PORT_RSA && up->probe & UART_PROBE_RSA)
+		serial8250_release_rsa_resource(up);
+}
+
+static int univ8250_request_port(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	int ret;
+
+	ret = base_ops->request_port(port);
+	if (ret == 0 && port->type == PORT_RSA) {
+		ret = serial8250_request_rsa_resource(up);
+		if (ret < 0)
+			base_ops->release_port(port);
+	}
+
+	return ret;
+}
+
+static void univ8250_release_port(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	if (port->type == PORT_RSA)
+		serial8250_release_rsa_resource(up);
+	base_ops->release_port(port);
+}
+
+static void univ8250_rsa_support(struct uart_ops *ops)
+{
+	ops->config_port  = univ8250_config_port;
+	ops->request_port = univ8250_request_port;
+	ops->release_port = univ8250_release_port;
+}
+
+#else
+#define univ8250_rsa_support(x)		do { } while (0)
+#endif /* CONFIG_SERIAL_8250_RSA */
+
+static void __init serial8250_isa_init_ports(void)
+{
+	struct uart_8250_port *up;
+	static int first = 1;
+	int i, irqflag = 0;
+
+	if (!first)
+		return;
+	first = 0;
+
+	if (nr_uarts > UART_NR)
+		nr_uarts = UART_NR;
+
+	for (i = 0; i < nr_uarts; i++) {
+		struct uart_8250_port *up = &serial8250_ports[i];
+		struct uart_port *port = &up->port;
+
+		port->line = i;
+		serial8250_init_port(up);
+		if (!base_ops)
+			base_ops = port->ops;
+		port->ops = &univ8250_port_ops;
+
+		init_timer(&up->timer);
+		up->timer.function = serial8250_timeout;
+
+		up->ops = &univ8250_driver_ops;
+
+		/*
+		 * ALPHA_KLUDGE_MCR needs to be killed.
+		 */
+		up->mcr_mask = ~ALPHA_KLUDGE_MCR;
+		up->mcr_force = ALPHA_KLUDGE_MCR;
+	}
+
+	/* chain base port ops to support Remote Supervisor Adapter */
+	univ8250_port_ops = *base_ops;
+	univ8250_rsa_support(&univ8250_port_ops);
+
+	if (share_irqs)
+		irqflag = IRQF_SHARED;
+
+	for (i = 0, up = serial8250_ports;
+	     i < ARRAY_SIZE(old_serial_port) && i < nr_uarts;
+	     i++, up++) {
+		struct uart_port *port = &up->port;
+
+		port->iobase   = old_serial_port[i].port;
+		port->irq      = irq_canonicalize(old_serial_port[i].irq);
+		port->irqflags = old_serial_port[i].irqflags;
+		port->uartclk  = old_serial_port[i].baud_base * 16;
+		port->flags    = old_serial_port[i].flags;
+		port->hub6     = old_serial_port[i].hub6;
+		port->membase  = old_serial_port[i].iomem_base;
+		port->iotype   = old_serial_port[i].io_type;
+		port->regshift = old_serial_port[i].iomem_reg_shift;
+		serial8250_set_defaults(up);
+
+		port->irqflags |= irqflag;
+		if (serial8250_isa_config != NULL)
+			serial8250_isa_config(i, &up->port, &up->capabilities);
+	}
+}
+
+static void __init
+serial8250_register_ports(struct uart_driver *drv, struct device *dev)
+{
+	int i;
+
+	for (i = 0; i < nr_uarts; i++) {
+		struct uart_8250_port *up = &serial8250_ports[i];
+
+		if (up->port.dev)
+			continue;
+
+		up->port.dev = dev;
+
+		if (skip_txen_test)
+			up->port.flags |= UPF_NO_TXEN_TEST;
+
+		uart_add_one_port(drv, &up->port);
+	}
+}
+
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+
+static void serial8250_console_putchar(struct uart_port *port, int ch)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	wait_for_xmitr(up, UART_LSR_THRE);
+	serial_port_out(port, UART_TX, ch);
+}
+
+/*
+ *	Print a string to the serial port trying not to disturb
+ *	any possible real use of the port...
+ *
+ *	The console_lock must be held when we get here.
+ */
+static void serial8250_console_write(struct uart_8250_port *up, const char *s,
+				     unsigned int count, unsigned int loglevel)
+{
+	struct uart_port *port = &up->port;
+	unsigned long flags;
+	unsigned int ier;
+	int locked = 1;
+
+	touch_nmi_watchdog();
+
+	serial8250_rpm_get(up);
+
+	if (port->sysrq)
+		locked = 0;
+	else if (oops_in_progress)
+		locked = spin_trylock_irqsave(&port->lock, flags);
+	else
+		spin_lock_irqsave(&port->lock, flags);
+
+	/*
+	 *	First save the IER then disable the interrupts
+	 */
+	ier = serial_port_in(port, UART_IER);
+
+	if (up->capabilities & UART_CAP_UUE)
+		serial_port_out(port, UART_IER, UART_IER_UUE);
+	else
+		serial_port_out(port, UART_IER, 0);
+
+	/* check scratch reg to see if port powered off during system sleep */
+	if (up->canary && (up->canary != serial_port_in(port, UART_SCR))) {
+		struct ktermios termios;
+		unsigned int baud, quot, frac = 0;
+
+		termios.c_cflag = port->cons->cflag;
+		if (port->state->port.tty && termios.c_cflag == 0)
+			termios.c_cflag = port->state->port.tty->termios.c_cflag;
+
+		baud = uart_get_baud_rate(port, &termios, NULL,
+					  port->uartclk / 16 / 0xffff,
+					  port->uartclk / 16);
+		quot = serial8250_get_divisor(up, baud, &frac);
+
+		serial8250_set_divisor(port, baud, quot, frac);
+		serial_port_out(port, UART_LCR, up->lcr);
+		serial_port_out(port, UART_MCR, UART_MCR_DTR | UART_MCR_RTS);
+
+		up->canary = 0;
+	}
+
+	uart_console_write(port, s, count, serial8250_console_putchar);
+
+	/*
+	 *	Finally, wait for transmitter to become empty
+	 *	and restore the IER
+	 */
+	wait_for_xmitr(up, BOTH_EMPTY);
+	serial_port_out(port, UART_IER, ier);
+
+	/*
+	 *	The receive handling will happen properly because the
+	 *	receive ready bit will still be set; it is not cleared
+	 *	on read.  However, modem control will not, we must
+	 *	call it if we have saved something in the saved flags
+	 *	while processing with interrupts off.
+	 */
+	if (up->msr_saved_flags)
+		serial8250_modem_status(up);
+
+	if (locked)
+		spin_unlock_irqrestore(&port->lock, flags);
+	serial8250_rpm_put(up);
+}
+
+static void univ8250_console_write(struct console *co, const char *s,
+				   unsigned int count, unsigned int loglevel)
+{
+	struct uart_8250_port *up = &serial8250_ports[co->index];
+
+	serial8250_console_write(up, s, count, loglevel);
+}
+
+static unsigned int probe_baud(struct uart_port *port)
+{
+	unsigned char lcr, dll, dlm;
+	unsigned int quot;
+
+	lcr = serial_port_in(port, UART_LCR);
+	serial_port_out(port, UART_LCR, lcr | UART_LCR_DLAB);
+	dll = serial_port_in(port, UART_DLL);
+	dlm = serial_port_in(port, UART_DLM);
+	serial_port_out(port, UART_LCR, lcr);
+
+	quot = (dlm << 8) | dll;
+	return (port->uartclk / 16) / quot;
+}
+
+static int serial8250_console_setup(struct uart_port *port, char *options, bool probe)
+{
+	int baud = 9600;
+	int bits = 8;
+	int parity = 'n';
+	int flow = 'n';
+
+	if (!port->iobase && !port->membase)
+		return -ENODEV;
+
+	if (options)
+		uart_parse_options(options, &baud, &parity, &bits, &flow);
+	else if (probe)
+		baud = probe_baud(port);
+
+	return uart_set_options(port, port->cons, baud, parity, bits, flow);
+}
+
+static int univ8250_console_setup(struct console *co, char *options)
+{
+	struct uart_port *port;
+
+	/*
+	 * Check whether an invalid uart number has been specified, and
+	 * if so, search for the first available port that does have
+	 * console support.
+	 */
+	if (co->index >= nr_uarts)
+		co->index = 0;
+	port = &serial8250_ports[co->index].port;
+	/* link port to console */
+	port->cons = co;
+
+	return serial8250_console_setup(port, options, false);
+}
+
+/**
+ *	univ8250_console_match - non-standard console matching
+ *	@co:	  registering console
+ *	@name:	  name from console command line
+ *	@idx:	  index from console command line
+ *	@options: ptr to option string from console command line
+ *
+ *	Only attempts to match console command lines of the form:
+ *	    console=uart[8250],io|mmio|mmio32,<addr>[,<options>]
+ *	    console=uart[8250],0x<addr>[,<options>]
+ *	This form is used to register an initial earlycon boot console and
+ *	replace it with the serial8250_console at 8250 driver init.
+ *
+ *	Performs console setup for a match (as required by interface)
+ *	If no <options> are specified, then assume the h/w is already setup.
+ *
+ *	Returns 0 if console matches; otherwise non-zero to use default matching
+ */
+static int univ8250_console_match(struct console *co, char *name, int idx,
+				  char *options)
+{
+	char match[] = "uart";	/* 8250-specific earlycon name */
+	unsigned char iotype;
+	unsigned long addr;
+	int i;
+
+	if (strncmp(name, match, 4) != 0)
+		return -ENODEV;
+
+	if (uart_parse_earlycon(options, &iotype, &addr, &options))
+		return -ENODEV;
+
+	/* try to match the port specified on the command line */
+	for (i = 0; i < nr_uarts; i++) {
+		struct uart_port *port = &serial8250_ports[i].port;
+
+		if (port->iotype != iotype)
+			continue;
+		if ((iotype == UPIO_MEM || iotype == UPIO_MEM32) &&
+		    (port->mapbase != addr))
+			continue;
+		if (iotype == UPIO_PORT && port->iobase != addr)
+			continue;
+
+		co->index = i;
+		port->cons = co;
+		return serial8250_console_setup(port, options, true);
+	}
+
+	return -ENODEV;
+}
+
+static struct console univ8250_console = {
+	.name		= "ttyS",
+	.write		= univ8250_console_write,
+	.device		= uart_console_device,
+	.setup		= univ8250_console_setup,
+	.match		= univ8250_console_match,
+	.flags		= CON_PRINTBUFFER | CON_ANYTIME,
+	.index		= -1,
+	.data		= &serial8250_reg,
+};
+
+static int __init univ8250_console_init(void)
+{
+	serial8250_isa_init_ports();
+	register_console(&univ8250_console);
+	return 0;
+}
+console_initcall(univ8250_console_init);
+
+#define SERIAL8250_CONSOLE	&univ8250_console
+#else
+#define SERIAL8250_CONSOLE	NULL
+#endif
+
+static struct uart_driver serial8250_reg = {
+	.owner			= THIS_MODULE,
+	.driver_name		= "serial",
+	.dev_name		= "ttyS",
+	.major			= TTY_MAJOR,
+	.minor			= 64,
+	.cons			= SERIAL8250_CONSOLE,
+};
+
+/*
+ * early_serial_setup - early registration for 8250 ports
+ *
+ * Setup an 8250 port structure prior to console initialisation.  Use
+ * after console initialisation will cause undefined behaviour.
+ */
+int __init early_serial_setup(struct uart_port *port)
+{
+	struct uart_port *p;
+
+	if (port->line >= ARRAY_SIZE(serial8250_ports))
+		return -ENODEV;
+
+	serial8250_isa_init_ports();
+	p = &serial8250_ports[port->line].port;
+	p->iobase       = port->iobase;
+	p->membase      = port->membase;
+	p->irq          = port->irq;
+	p->irqflags     = port->irqflags;
+	p->uartclk      = port->uartclk;
+	p->fifosize     = port->fifosize;
+	p->regshift     = port->regshift;
+	p->iotype       = port->iotype;
+	p->flags        = port->flags;
+	p->mapbase      = port->mapbase;
+	p->mapsize      = port->mapsize;
+	p->private_data = port->private_data;
+	p->type		= port->type;
+	p->line		= port->line;
+
+	serial8250_set_defaults(up_to_u8250p(p));
+
+	if (port->serial_in)
+		p->serial_in = port->serial_in;
+	if (port->serial_out)
+		p->serial_out = port->serial_out;
+	if (port->handle_irq)
+		p->handle_irq = port->handle_irq;
+
+	return 0;
+}
+
+/**
+ *	serial8250_suspend_port - suspend one serial port
+ *	@line:  serial line number
+ *
+ *	Suspend one serial port.
+ */
+void serial8250_suspend_port(int line)
+{
+	struct uart_8250_port *up = &serial8250_ports[line];
+	struct uart_port *port = &up->port;
+
+	if (!console_suspend_enabled && uart_console(port) &&
+	    port->type != PORT_8250) {
+		unsigned char canary = 0xa5;
+		serial_out(up, UART_SCR, canary);
+		if (serial_in(up, UART_SCR) == canary)
+			up->canary = canary;
+	}
+
+	uart_suspend_port(&serial8250_reg, port);
+}
+
+/**
+ *	serial8250_resume_port - resume one serial port
+ *	@line:  serial line number
+ *
+ *	Resume one serial port.
+ */
+void serial8250_resume_port(int line)
+{
+	struct uart_8250_port *up = &serial8250_ports[line];
+	struct uart_port *port = &up->port;
+
+	up->canary = 0;
+
+	if (up->capabilities & UART_NATSEMI) {
+		/* Ensure it's still in high speed mode */
+		serial_port_out(port, UART_LCR, 0xE0);
+
+		ns16550a_goto_highspeed(up);
+
+		serial_port_out(port, UART_LCR, 0);
+		port->uartclk = 921600*16;
+	}
+	uart_resume_port(&serial8250_reg, port);
+}
+
+/*
+ * Register a set of serial devices attached to a platform device.  The
+ * list is terminated with a zero flags entry, which means we expect
+ * all entries to have at least UPF_BOOT_AUTOCONF set.
+ */
+static int serial8250_probe(struct platform_device *dev)
+{
+	struct plat_serial8250_port *p = dev_get_platdata(&dev->dev);
+	struct uart_8250_port uart;
+	int ret, i, irqflag = 0;
+
+	memset(&uart, 0, sizeof(uart));
+
+	if (share_irqs)
+		irqflag = IRQF_SHARED;
+
+	for (i = 0; p && p->flags != 0; p++, i++) {
+		uart.port.iobase	= p->iobase;
+		uart.port.membase	= p->membase;
+		uart.port.irq		= p->irq;
+		uart.port.irqflags	= p->irqflags;
+		uart.port.uartclk	= p->uartclk;
+		uart.port.regshift	= p->regshift;
+		uart.port.iotype	= p->iotype;
+		uart.port.flags		= p->flags;
+		uart.port.mapbase	= p->mapbase;
+		uart.port.hub6		= p->hub6;
+		uart.port.private_data	= p->private_data;
+		uart.port.type		= p->type;
+		uart.port.serial_in	= p->serial_in;
+		uart.port.serial_out	= p->serial_out;
+		uart.port.handle_irq	= p->handle_irq;
+		uart.port.handle_break	= p->handle_break;
+		uart.port.set_termios	= p->set_termios;
+		uart.port.pm		= p->pm;
+		uart.port.dev		= &dev->dev;
+		uart.port.irqflags	|= irqflag;
+		ret = serial8250_register_8250_port(&uart);
+		if (ret < 0) {
+			dev_err(&dev->dev, "unable to register port at index %d "
+				"(IO%lx MEM%llx IRQ%d): %d\n", i,
+				p->iobase, (unsigned long long)p->mapbase,
+				p->irq, ret);
+		}
+	}
+	return 0;
+}
+
+/*
+ * Remove serial ports registered against a platform device.
+ */
+static int serial8250_remove(struct platform_device *dev)
+{
+	int i;
+
+	for (i = 0; i < nr_uarts; i++) {
+		struct uart_8250_port *up = &serial8250_ports[i];
+
+		if (up->port.dev == &dev->dev)
+			serial8250_unregister_port(i);
+	}
+	return 0;
+}
+
+static int serial8250_suspend(struct platform_device *dev, pm_message_t state)
+{
+	int i;
+
+	for (i = 0; i < UART_NR; i++) {
+		struct uart_8250_port *up = &serial8250_ports[i];
+
+		if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev)
+			uart_suspend_port(&serial8250_reg, &up->port);
+	}
+
+	return 0;
+}
+
+static int serial8250_resume(struct platform_device *dev)
+{
+	int i;
+
+	for (i = 0; i < UART_NR; i++) {
+		struct uart_8250_port *up = &serial8250_ports[i];
+
+		if (up->port.type != PORT_UNKNOWN && up->port.dev == &dev->dev)
+			serial8250_resume_port(i);
+	}
+
+	return 0;
+}
+
+static struct platform_driver serial8250_isa_driver = {
+	.probe		= serial8250_probe,
+	.remove		= serial8250_remove,
+	.suspend	= serial8250_suspend,
+	.resume		= serial8250_resume,
+	.driver		= {
+		.name	= "serial8250",
+	},
+};
+
+/*
+ * This "device" covers _all_ ISA 8250-compatible serial devices listed
+ * in the table in include/asm/serial.h
+ */
+static struct platform_device *serial8250_isa_devs;
+
+/*
+ * serial8250_register_8250_port and serial8250_unregister_port allows for
+ * 16x50 serial ports to be configured at run-time, to support PCMCIA
+ * modems and PCI multiport cards.
+ */
+static DEFINE_MUTEX(serial_mutex);
+
+static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port *port)
+{
+	int i;
+
+	/*
+	 * First, find a port entry which matches.
+	 */
+	for (i = 0; i < nr_uarts; i++)
+		if (uart_match_port(&serial8250_ports[i].port, port))
+			return &serial8250_ports[i];
+
+	/* try line number first if still available */
+	i = port->line;
+	if (i < nr_uarts && serial8250_ports[i].port.type == PORT_UNKNOWN &&
+			serial8250_ports[i].port.iobase == 0)
+		return &serial8250_ports[i];
+	/*
+	 * We didn't find a matching entry, so look for the first
+	 * free entry.  We look for one which hasn't been previously
+	 * used (indicated by zero iobase).
+	 */
+	for (i = 0; i < nr_uarts; i++)
+		if (serial8250_ports[i].port.type == PORT_UNKNOWN &&
+		    serial8250_ports[i].port.iobase == 0)
+			return &serial8250_ports[i];
+
+	/*
+	 * That also failed.  Last resort is to find any entry which
+	 * doesn't have a real port associated with it.
+	 */
+	for (i = 0; i < nr_uarts; i++)
+		if (serial8250_ports[i].port.type == PORT_UNKNOWN)
+			return &serial8250_ports[i];
+
+	return NULL;
+}
+
+/**
+ *	serial8250_register_8250_port - register a serial port
+ *	@up: serial port template
+ *
+ *	Configure the serial port specified by the request. If the
+ *	port exists and is in use, it is hung up and unregistered
+ *	first.
+ *
+ *	The port is then probed and if necessary the IRQ is autodetected
+ *	If this fails an error is returned.
+ *
+ *	On success the port is ready to use and the line number is returned.
+ */
+int serial8250_register_8250_port(struct uart_8250_port *up)
+{
+	struct uart_8250_port *uart;
+	int ret = -ENOSPC;
+
+	if (up->port.uartclk == 0)
+		return -EINVAL;
+
+	mutex_lock(&serial_mutex);
+
+	uart = serial8250_find_match_or_unused(&up->port);
+	if (uart && uart->port.type != PORT_8250_CIR) {
+		if (uart->port.dev)
+			uart_remove_one_port(&serial8250_reg, &uart->port);
+
+		uart->port.iobase       = up->port.iobase;
+		uart->port.membase      = up->port.membase;
+		uart->port.irq          = up->port.irq;
+		uart->port.irqflags     = up->port.irqflags;
+		uart->port.uartclk      = up->port.uartclk;
+		uart->port.fifosize     = up->port.fifosize;
+		uart->port.regshift     = up->port.regshift;
+		uart->port.iotype       = up->port.iotype;
+		uart->port.flags        = up->port.flags | UPF_BOOT_AUTOCONF;
+		uart->bugs		= up->bugs;
+		uart->port.mapbase      = up->port.mapbase;
+		uart->port.mapsize      = up->port.mapsize;
+		uart->port.private_data = up->port.private_data;
+		uart->port.fifosize	= up->port.fifosize;
+		uart->tx_loadsz		= up->tx_loadsz;
+		uart->capabilities	= up->capabilities;
+		uart->port.throttle	= up->port.throttle;
+		uart->port.unthrottle	= up->port.unthrottle;
+		uart->port.rs485_config	= up->port.rs485_config;
+		uart->port.rs485	= up->port.rs485;
+		uart->dma		= up->dma;
+
+		/* Take tx_loadsz from fifosize if it wasn't set separately */
+		if (uart->port.fifosize && !uart->tx_loadsz)
+			uart->tx_loadsz = uart->port.fifosize;
+
+		if (up->port.dev)
+			uart->port.dev = up->port.dev;
+
+		if (skip_txen_test)
+			uart->port.flags |= UPF_NO_TXEN_TEST;
+
+		if (up->port.flags & UPF_FIXED_TYPE)
+			uart->port.type = up->port.type;
+
+		serial8250_set_defaults(uart);
+
+		/* Possibly override default I/O functions.  */
+		if (up->port.serial_in)
+			uart->port.serial_in = up->port.serial_in;
+		if (up->port.serial_out)
+			uart->port.serial_out = up->port.serial_out;
+		if (up->port.handle_irq)
+			uart->port.handle_irq = up->port.handle_irq;
+		/*  Possibly override set_termios call */
+		if (up->port.set_termios)
+			uart->port.set_termios = up->port.set_termios;
+		if (up->port.set_mctrl)
+			uart->port.set_mctrl = up->port.set_mctrl;
+		if (up->port.startup)
+			uart->port.startup = up->port.startup;
+		if (up->port.shutdown)
+			uart->port.shutdown = up->port.shutdown;
+		if (up->port.pm)
+			uart->port.pm = up->port.pm;
+		if (up->port.handle_break)
+			uart->port.handle_break = up->port.handle_break;
+		if (up->dl_read)
+			uart->dl_read = up->dl_read;
+		if (up->dl_write)
+			uart->dl_write = up->dl_write;
+
+		if (serial8250_isa_config != NULL)
+			serial8250_isa_config(0, &uart->port,
+					&uart->capabilities);
+
+		ret = uart_add_one_port(&serial8250_reg, &uart->port);
+		if (ret == 0)
+			ret = uart->port.line;
+	}
+	mutex_unlock(&serial_mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL(serial8250_register_8250_port);
+
+/**
+ *	serial8250_unregister_port - remove a 16x50 serial port at runtime
+ *	@line: serial line number
+ *
+ *	Remove one serial port.  This may not be called from interrupt
+ *	context.  We hand the port back to the our control.
+ */
+void serial8250_unregister_port(int line)
+{
+	struct uart_8250_port *uart = &serial8250_ports[line];
+
+	mutex_lock(&serial_mutex);
+	uart_remove_one_port(&serial8250_reg, &uart->port);
+	if (serial8250_isa_devs) {
+		uart->port.flags &= ~UPF_BOOT_AUTOCONF;
+		if (skip_txen_test)
+			uart->port.flags |= UPF_NO_TXEN_TEST;
+		uart->port.type = PORT_UNKNOWN;
+		uart->port.dev = &serial8250_isa_devs->dev;
+		uart->capabilities = 0;
+		uart_add_one_port(&serial8250_reg, &uart->port);
+	} else {
+		uart->port.dev = NULL;
+	}
+	mutex_unlock(&serial_mutex);
+}
+EXPORT_SYMBOL(serial8250_unregister_port);
+
+static int __init serial8250_init(void)
+{
+	int ret;
+
+	serial8250_isa_init_ports();
+
+	printk(KERN_INFO "Serial: 8250/16550 driver, "
+		"%d ports, IRQ sharing %sabled\n", nr_uarts,
+		share_irqs ? "en" : "dis");
+
+#ifdef CONFIG_SPARC
+	ret = sunserial_register_minors(&serial8250_reg, UART_NR);
+#else
+	serial8250_reg.nr = UART_NR;
+	ret = uart_register_driver(&serial8250_reg);
+#endif
+	if (ret)
+		goto out;
+
+	ret = serial8250_pnp_init();
+	if (ret)
+		goto unreg_uart_drv;
+
+	serial8250_isa_devs = platform_device_alloc("serial8250",
+						    PLAT8250_DEV_LEGACY);
+	if (!serial8250_isa_devs) {
+		ret = -ENOMEM;
+		goto unreg_pnp;
+	}
+
+	ret = platform_device_add(serial8250_isa_devs);
+	if (ret)
+		goto put_dev;
+
+	serial8250_register_ports(&serial8250_reg, &serial8250_isa_devs->dev);
+
+	ret = platform_driver_register(&serial8250_isa_driver);
+	if (ret == 0)
+		goto out;
+
+	platform_device_del(serial8250_isa_devs);
+put_dev:
+	platform_device_put(serial8250_isa_devs);
+unreg_pnp:
+	serial8250_pnp_exit();
+unreg_uart_drv:
+#ifdef CONFIG_SPARC
+	sunserial_unregister_minors(&serial8250_reg, UART_NR);
+#else
+	uart_unregister_driver(&serial8250_reg);
+#endif
+out:
+	return ret;
+}
+
+static void __exit serial8250_exit(void)
+{
+	struct platform_device *isa_dev = serial8250_isa_devs;
+
+	/*
+	 * This tells serial8250_unregister_port() not to re-register
+	 * the ports (thereby making serial8250_isa_driver permanently
+	 * in use.)
+	 */
+	serial8250_isa_devs = NULL;
+
+	platform_driver_unregister(&serial8250_isa_driver);
+	platform_device_unregister(isa_dev);
+
+	serial8250_pnp_exit();
+
+#ifdef CONFIG_SPARC
+	sunserial_unregister_minors(&serial8250_reg, UART_NR);
+#else
+	uart_unregister_driver(&serial8250_reg);
+#endif
+}
+
+module_init(serial8250_init);
+module_exit(serial8250_exit);
+
+EXPORT_SYMBOL(serial8250_suspend_port);
+EXPORT_SYMBOL(serial8250_resume_port);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Generic 8250/16x50 serial driver");
+
+module_param(share_irqs, uint, 0644);
+MODULE_PARM_DESC(share_irqs, "Share IRQs with other non-8250/16x50 devices"
+	" (unsafe)");
+
+module_param(nr_uarts, uint, 0644);
+MODULE_PARM_DESC(nr_uarts, "Maximum number of UARTs supported. (1-" __MODULE_STRING(CONFIG_SERIAL_8250_NR_UARTS) ")");
+
+module_param(skip_txen_test, uint, 0644);
+MODULE_PARM_DESC(skip_txen_test, "Skip checking for the TXEN bug at init time");
+
+#ifdef CONFIG_SERIAL_8250_RSA
+module_param_array(probe_rsa, ulong, &probe_rsa_count, 0444);
+MODULE_PARM_DESC(probe_rsa, "Probe I/O ports for RSA");
+#endif
+MODULE_ALIAS_CHARDEV_MAJOR(TTY_MAJOR);
+
+#ifdef CONFIG_SERIAL_8250_DEPRECATED_OPTIONS
+#ifndef MODULE
+/* This module was renamed to 8250_core in 3.7.  Keep the old "8250" name
+ * working as well for the module options so we don't break people.  We
+ * need to keep the names identical and the convenient macros will happily
+ * refuse to let us do that by failing the build with redefinition errors
+ * of global variables.  So we stick them inside a dummy function to avoid
+ * those conflicts.  The options still get parsed, and the redefined
+ * MODULE_PARAM_PREFIX lets us keep the "8250." syntax alive.
+ *
+ * This is hacky.  I'm sorry.
+ */
+static void __used s8250_options(void)
+{
+#undef MODULE_PARAM_PREFIX
+#define MODULE_PARAM_PREFIX "8250_core."
+
+	module_param_cb(share_irqs, &param_ops_uint, &share_irqs, 0644);
+	module_param_cb(nr_uarts, &param_ops_uint, &nr_uarts, 0644);
+	module_param_cb(skip_txen_test, &param_ops_uint, &skip_txen_test, 0644);
+#ifdef CONFIG_SERIAL_8250_RSA
+	__module_param_call(MODULE_PARAM_PREFIX, probe_rsa,
+		&param_array_ops, .arr = &__param_arr_probe_rsa,
+		0444, -1, 0);
+#endif
+}
+#else
+MODULE_ALIAS("8250_core");
+#endif
+#endif
diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c
new file mode 100644
index 000000000..21d01a491
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_dma.c
@@ -0,0 +1,259 @@
+/*
+ * 8250_dma.c - DMA Engine API support for 8250.c
+ *
+ * Copyright (C) 2013 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/serial_reg.h>
+#include <linux/dma-mapping.h>
+
+#include "8250.h"
+
+static void __dma_tx_complete(void *param)
+{
+	struct uart_8250_port	*p = param;
+	struct uart_8250_dma	*dma = p->dma;
+	struct circ_buf		*xmit = &p->port.state->xmit;
+	unsigned long	flags;
+	int		ret;
+
+	dma_sync_single_for_cpu(dma->txchan->device->dev, dma->tx_addr,
+				UART_XMIT_SIZE, DMA_TO_DEVICE);
+
+	spin_lock_irqsave(&p->port.lock, flags);
+
+	dma->tx_running = 0;
+
+	xmit->tail += dma->tx_size;
+	xmit->tail &= UART_XMIT_SIZE - 1;
+	p->port.icount.tx += dma->tx_size;
+
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+		uart_write_wakeup(&p->port);
+
+	ret = serial8250_tx_dma(p);
+	if (ret) {
+		p->ier |= UART_IER_THRI;
+		serial_port_out(&p->port, UART_IER, p->ier);
+	}
+
+	spin_unlock_irqrestore(&p->port.lock, flags);
+}
+
+static void __dma_rx_complete(void *param)
+{
+	struct uart_8250_port	*p = param;
+	struct uart_8250_dma	*dma = p->dma;
+	struct tty_port		*tty_port = &p->port.state->port;
+	struct dma_tx_state	state;
+	int			count;
+
+	dma_sync_single_for_cpu(dma->rxchan->device->dev, dma->rx_addr,
+				dma->rx_size, DMA_FROM_DEVICE);
+
+	dma->rx_running = 0;
+	dmaengine_tx_status(dma->rxchan, dma->rx_cookie, &state);
+
+	count = dma->rx_size - state.residue;
+
+	tty_insert_flip_string(tty_port, dma->rx_buf, count);
+	p->port.icount.rx += count;
+
+	tty_flip_buffer_push(tty_port);
+}
+
+int serial8250_tx_dma(struct uart_8250_port *p)
+{
+	struct uart_8250_dma		*dma = p->dma;
+	struct circ_buf			*xmit = &p->port.state->xmit;
+	struct dma_async_tx_descriptor	*desc;
+	int ret;
+
+	if (uart_tx_stopped(&p->port) || dma->tx_running ||
+	    uart_circ_empty(xmit))
+		return 0;
+
+	dma->tx_size = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);
+	if (dma->tx_size < p->port.fifosize) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	desc = dmaengine_prep_slave_single(dma->txchan,
+					   dma->tx_addr + xmit->tail,
+					   dma->tx_size, DMA_MEM_TO_DEV,
+					   DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	if (!desc) {
+		ret = -EBUSY;
+		goto err;
+	}
+
+	dma->tx_running = 1;
+	desc->callback = __dma_tx_complete;
+	desc->callback_param = p;
+
+	dma->tx_cookie = dmaengine_submit(desc);
+
+	dma_sync_single_for_device(dma->txchan->device->dev, dma->tx_addr,
+				   UART_XMIT_SIZE, DMA_TO_DEVICE);
+
+	dma_async_issue_pending(dma->txchan);
+	if (dma->tx_err) {
+		dma->tx_err = 0;
+		if (p->ier & UART_IER_THRI) {
+			p->ier &= ~UART_IER_THRI;
+			serial_out(p, UART_IER, p->ier);
+		}
+	}
+	return 0;
+err:
+	dma->tx_err = 1;
+	return ret;
+}
+
+int serial8250_rx_dma(struct uart_8250_port *p, unsigned int iir)
+{
+	struct uart_8250_dma		*dma = p->dma;
+	struct dma_async_tx_descriptor	*desc;
+
+	switch (iir & 0x3f) {
+	case UART_IIR_RLSI:
+		/* 8250_core handles errors and break interrupts */
+		return -EIO;
+	case UART_IIR_RX_TIMEOUT:
+		/*
+		 * If RCVR FIFO trigger level was not reached, complete the
+		 * transfer and let 8250_core copy the remaining data.
+		 */
+		if (dma->rx_running) {
+			dmaengine_pause(dma->rxchan);
+			__dma_rx_complete(p);
+			dmaengine_terminate_all(dma->rxchan);
+		}
+		return -ETIMEDOUT;
+	default:
+		break;
+	}
+
+	if (dma->rx_running)
+		return 0;
+
+	desc = dmaengine_prep_slave_single(dma->rxchan, dma->rx_addr,
+					   dma->rx_size, DMA_DEV_TO_MEM,
+					   DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	if (!desc)
+		return -EBUSY;
+
+	dma->rx_running = 1;
+	desc->callback = __dma_rx_complete;
+	desc->callback_param = p;
+
+	dma->rx_cookie = dmaengine_submit(desc);
+
+	dma_sync_single_for_device(dma->rxchan->device->dev, dma->rx_addr,
+				   dma->rx_size, DMA_FROM_DEVICE);
+
+	dma_async_issue_pending(dma->rxchan);
+
+	return 0;
+}
+
+int serial8250_request_dma(struct uart_8250_port *p)
+{
+	struct uart_8250_dma	*dma = p->dma;
+	dma_cap_mask_t		mask;
+
+	/* Default slave configuration parameters */
+	dma->rxconf.direction		= DMA_DEV_TO_MEM;
+	dma->rxconf.src_addr_width	= DMA_SLAVE_BUSWIDTH_1_BYTE;
+	dma->rxconf.src_addr		= p->port.mapbase + UART_RX;
+
+	dma->txconf.direction		= DMA_MEM_TO_DEV;
+	dma->txconf.dst_addr_width	= DMA_SLAVE_BUSWIDTH_1_BYTE;
+	dma->txconf.dst_addr		= p->port.mapbase + UART_TX;
+
+	dma_cap_zero(mask);
+	dma_cap_set(DMA_SLAVE, mask);
+
+	/* Get a channel for RX */
+	dma->rxchan = dma_request_slave_channel_compat(mask,
+						       dma->fn, dma->rx_param,
+						       p->port.dev, "rx");
+	if (!dma->rxchan)
+		return -ENODEV;
+
+	dmaengine_slave_config(dma->rxchan, &dma->rxconf);
+
+	/* Get a channel for TX */
+	dma->txchan = dma_request_slave_channel_compat(mask,
+						       dma->fn, dma->tx_param,
+						       p->port.dev, "tx");
+	if (!dma->txchan) {
+		dma_release_channel(dma->rxchan);
+		return -ENODEV;
+	}
+
+	dmaengine_slave_config(dma->txchan, &dma->txconf);
+
+	/* RX buffer */
+	if (!dma->rx_size)
+		dma->rx_size = PAGE_SIZE;
+
+	dma->rx_buf = dma_alloc_coherent(dma->rxchan->device->dev, dma->rx_size,
+					&dma->rx_addr, GFP_KERNEL);
+	if (!dma->rx_buf)
+		goto err;
+
+	/* TX buffer */
+	dma->tx_addr = dma_map_single(dma->txchan->device->dev,
+					p->port.state->xmit.buf,
+					UART_XMIT_SIZE,
+					DMA_TO_DEVICE);
+	if (dma_mapping_error(dma->txchan->device->dev, dma->tx_addr)) {
+		dma_free_coherent(dma->rxchan->device->dev, dma->rx_size,
+				  dma->rx_buf, dma->rx_addr);
+		goto err;
+	}
+
+	dev_dbg_ratelimited(p->port.dev, "got both dma channels\n");
+
+	return 0;
+err:
+	dma_release_channel(dma->rxchan);
+	dma_release_channel(dma->txchan);
+
+	return -ENOMEM;
+}
+EXPORT_SYMBOL_GPL(serial8250_request_dma);
+
+void serial8250_release_dma(struct uart_8250_port *p)
+{
+	struct uart_8250_dma *dma = p->dma;
+
+	if (!dma)
+		return;
+
+	/* Release RX resources */
+	dmaengine_terminate_all(dma->rxchan);
+	dma_free_coherent(dma->rxchan->device->dev, dma->rx_size, dma->rx_buf,
+			  dma->rx_addr);
+	dma_release_channel(dma->rxchan);
+	dma->rxchan = NULL;
+
+	/* Release TX resources */
+	dmaengine_terminate_all(dma->txchan);
+	dma_unmap_single(dma->txchan->device->dev, dma->tx_addr,
+			 UART_XMIT_SIZE, DMA_TO_DEVICE);
+	dma_release_channel(dma->txchan);
+	dma->txchan = NULL;
+	dma->tx_running = 0;
+
+	dev_dbg_ratelimited(p->port.dev, "dma channels released\n");
+}
+EXPORT_SYMBOL_GPL(serial8250_release_dma);
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
new file mode 100644
index 000000000..176f18f2e
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -0,0 +1,649 @@
+/*
+ * Synopsys DesignWare 8250 driver.
+ *
+ * Copyright 2011 Picochip, Jamie Iles.
+ * Copyright 2013 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The Synopsys DesignWare 8250 has an extra feature whereby it detects if the
+ * LCR is written whilst busy.  If it is, then a busy detect interrupt is
+ * raised, the LCR needs to be rewritten and the uart status register read.
+ */
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_reg.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/acpi.h>
+#include <linux/clk.h>
+#include <linux/reset.h>
+#include <linux/pm_runtime.h>
+
+#include <asm/byteorder.h>
+
+#include "8250.h"
+
+/* Offsets for the DesignWare specific registers */
+#define DW_UART_USR	0x1f /* UART Status Register */
+#define DW_UART_CPR	0xf4 /* Component Parameter Register */
+#define DW_UART_UCV	0xf8 /* UART Component Version */
+
+/* Component Parameter Register bits */
+#define DW_UART_CPR_ABP_DATA_WIDTH	(3 << 0)
+#define DW_UART_CPR_AFCE_MODE		(1 << 4)
+#define DW_UART_CPR_THRE_MODE		(1 << 5)
+#define DW_UART_CPR_SIR_MODE		(1 << 6)
+#define DW_UART_CPR_SIR_LP_MODE		(1 << 7)
+#define DW_UART_CPR_ADDITIONAL_FEATURES	(1 << 8)
+#define DW_UART_CPR_FIFO_ACCESS		(1 << 9)
+#define DW_UART_CPR_FIFO_STAT		(1 << 10)
+#define DW_UART_CPR_SHADOW		(1 << 11)
+#define DW_UART_CPR_ENCODED_PARMS	(1 << 12)
+#define DW_UART_CPR_DMA_EXTRA		(1 << 13)
+#define DW_UART_CPR_FIFO_MODE		(0xff << 16)
+/* Helper for fifo size calculation */
+#define DW_UART_CPR_FIFO_SIZE(a)	(((a >> 16) & 0xff) * 16)
+
+
+struct dw8250_data {
+	u8			usr_reg;
+	int			last_mcr;
+	int			line;
+	int			msr_mask_on;
+	int			msr_mask_off;
+	struct clk		*clk;
+	struct clk		*pclk;
+	struct reset_control	*rst;
+	struct uart_8250_dma	dma;
+};
+
+#define BYT_PRV_CLK			0x800
+#define BYT_PRV_CLK_EN			(1 << 0)
+#define BYT_PRV_CLK_M_VAL_SHIFT		1
+#define BYT_PRV_CLK_N_VAL_SHIFT		16
+#define BYT_PRV_CLK_UPDATE		(1 << 31)
+
+static inline int dw8250_modify_msr(struct uart_port *p, int offset, int value)
+{
+	struct dw8250_data *d = p->private_data;
+
+	/* If reading MSR, report CTS asserted when auto-CTS/RTS enabled */
+	if (offset == UART_MSR && d->last_mcr & UART_MCR_AFE) {
+		value |= UART_MSR_CTS;
+		value &= ~UART_MSR_DCTS;
+	}
+
+	/* Override any modem control signals if needed */
+	if (offset == UART_MSR) {
+		value |= d->msr_mask_on;
+		value &= ~d->msr_mask_off;
+	}
+
+	return value;
+}
+
+static void dw8250_force_idle(struct uart_port *p)
+{
+	struct uart_8250_port *up = up_to_u8250p(p);
+
+	serial8250_clear_and_reinit_fifos(up);
+	(void)p->serial_in(p, UART_RX);
+}
+
+static void dw8250_serial_out(struct uart_port *p, int offset, int value)
+{
+	struct dw8250_data *d = p->private_data;
+
+	if (offset == UART_MCR)
+		d->last_mcr = value;
+
+	writeb(value, p->membase + (offset << p->regshift));
+
+	/* Make sure LCR write wasn't ignored */
+	if (offset == UART_LCR) {
+		int tries = 1000;
+		while (tries--) {
+			unsigned int lcr = p->serial_in(p, UART_LCR);
+			if ((value & ~UART_LCR_SPAR) == (lcr & ~UART_LCR_SPAR))
+				return;
+			dw8250_force_idle(p);
+			writeb(value, p->membase + (UART_LCR << p->regshift));
+		}
+		/*
+		 * FIXME: this deadlocks if port->lock is already held
+		 * dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		 */
+	}
+}
+
+static unsigned int dw8250_serial_in(struct uart_port *p, int offset)
+{
+	unsigned int value = readb(p->membase + (offset << p->regshift));
+
+	return dw8250_modify_msr(p, offset, value);
+}
+
+#ifdef CONFIG_64BIT
+static unsigned int dw8250_serial_inq(struct uart_port *p, int offset)
+{
+	unsigned int value;
+
+	value = (u8)__raw_readq(p->membase + (offset << p->regshift));
+
+	return dw8250_modify_msr(p, offset, value);
+}
+
+static void dw8250_serial_outq(struct uart_port *p, int offset, int value)
+{
+	struct dw8250_data *d = p->private_data;
+
+	if (offset == UART_MCR)
+		d->last_mcr = value;
+
+	value &= 0xff;
+	__raw_writeq(value, p->membase + (offset << p->regshift));
+	/* Read back to ensure register write ordering. */
+	__raw_readq(p->membase + (UART_LCR << p->regshift));
+
+	/* Make sure LCR write wasn't ignored */
+	if (offset == UART_LCR) {
+		int tries = 1000;
+		while (tries--) {
+			unsigned int lcr = p->serial_in(p, UART_LCR);
+			if ((value & ~UART_LCR_SPAR) == (lcr & ~UART_LCR_SPAR))
+				return;
+			dw8250_force_idle(p);
+			__raw_writeq(value & 0xff,
+				     p->membase + (UART_LCR << p->regshift));
+		}
+		/*
+		 * FIXME: this deadlocks if port->lock is already held
+		 * dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		 */
+	}
+}
+#endif /* CONFIG_64BIT */
+
+static void dw8250_serial_out32(struct uart_port *p, int offset, int value)
+{
+	struct dw8250_data *d = p->private_data;
+
+	if (offset == UART_MCR)
+		d->last_mcr = value;
+
+	writel(value, p->membase + (offset << p->regshift));
+
+	/* Make sure LCR write wasn't ignored */
+	if (offset == UART_LCR) {
+		int tries = 1000;
+		while (tries--) {
+			unsigned int lcr = p->serial_in(p, UART_LCR);
+			if ((value & ~UART_LCR_SPAR) == (lcr & ~UART_LCR_SPAR))
+				return;
+			dw8250_force_idle(p);
+			writel(value, p->membase + (UART_LCR << p->regshift));
+		}
+		/*
+		 * FIXME: this deadlocks if port->lock is already held
+		 * dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+		 */
+	}
+}
+
+static unsigned int dw8250_serial_in32(struct uart_port *p, int offset)
+{
+	unsigned int value = readl(p->membase + (offset << p->regshift));
+
+	return dw8250_modify_msr(p, offset, value);
+}
+
+static int dw8250_handle_irq(struct uart_port *p)
+{
+	struct dw8250_data *d = p->private_data;
+	unsigned int iir = p->serial_in(p, UART_IIR);
+
+	if (serial8250_handle_irq(p, iir)) {
+		return 1;
+	} else if ((iir & UART_IIR_BUSY) == UART_IIR_BUSY) {
+		/* Clear the USR */
+		(void)p->serial_in(p, d->usr_reg);
+
+		return 1;
+	}
+
+	return 0;
+}
+
+static void
+dw8250_do_pm(struct uart_port *port, unsigned int state, unsigned int old)
+{
+	if (!state)
+		pm_runtime_get_sync(port->dev);
+
+	serial8250_do_pm(port, state, old);
+
+	if (state)
+		pm_runtime_put_sync_suspend(port->dev);
+}
+
+static void dw8250_set_termios(struct uart_port *p, struct ktermios *termios,
+			       struct ktermios *old)
+{
+	unsigned int baud = tty_termios_baud_rate(termios);
+	struct dw8250_data *d = p->private_data;
+	unsigned int rate;
+	int ret;
+
+	if (IS_ERR(d->clk) || !old)
+		goto out;
+
+	/* Not requesting clock rates below 1.8432Mhz */
+	if (baud < 115200)
+		baud = 115200;
+
+	clk_disable_unprepare(d->clk);
+	rate = clk_round_rate(d->clk, baud * 16);
+	ret = clk_set_rate(d->clk, rate);
+	clk_prepare_enable(d->clk);
+
+	if (!ret)
+		p->uartclk = rate;
+out:
+	serial8250_do_set_termios(p, termios, old);
+}
+
+static bool dw8250_dma_filter(struct dma_chan *chan, void *param)
+{
+	return false;
+}
+
+static void dw8250_setup_port(struct uart_8250_port *up)
+{
+	struct uart_port	*p = &up->port;
+	u32			reg = readl(p->membase + DW_UART_UCV);
+
+	/*
+	 * If the Component Version Register returns zero, we know that
+	 * ADDITIONAL_FEATURES are not enabled. No need to go any further.
+	 */
+	if (!reg)
+		return;
+
+	dev_dbg_ratelimited(p->dev, "Designware UART version %c.%c%c\n",
+		(reg >> 24) & 0xff, (reg >> 16) & 0xff, (reg >> 8) & 0xff);
+
+	reg = readl(p->membase + DW_UART_CPR);
+	if (!reg)
+		return;
+
+	/* Select the type based on fifo */
+	if (reg & DW_UART_CPR_FIFO_MODE) {
+		p->type = PORT_16550A;
+		p->flags |= UPF_FIXED_TYPE;
+		p->fifosize = DW_UART_CPR_FIFO_SIZE(reg);
+		up->tx_loadsz = p->fifosize;
+		up->capabilities = UART_CAP_FIFO;
+	}
+
+	if (reg & DW_UART_CPR_AFCE_MODE)
+		up->capabilities |= UART_CAP_AFE;
+}
+
+static int dw8250_probe_of(struct uart_port *p,
+			   struct dw8250_data *data)
+{
+	struct device_node	*np = p->dev->of_node;
+	struct uart_8250_port *up = up_to_u8250p(p);
+	u32			val;
+	bool has_ucv = true;
+	int id;
+
+#ifdef CONFIG_64BIT
+	if (of_device_is_compatible(np, "cavium,octeon-3860-uart")) {
+		p->serial_in = dw8250_serial_inq;
+		p->serial_out = dw8250_serial_outq;
+		p->flags = UPF_SKIP_TEST | UPF_SHARE_IRQ | UPF_FIXED_TYPE;
+		p->type = PORT_OCTEON;
+		data->usr_reg = 0x27;
+		has_ucv = false;
+	} else
+#endif
+	if (!of_property_read_u32(np, "reg-io-width", &val)) {
+		switch (val) {
+		case 1:
+			break;
+		case 4:
+			p->iotype = UPIO_MEM32;
+			p->serial_in = dw8250_serial_in32;
+			p->serial_out = dw8250_serial_out32;
+			break;
+		default:
+			dev_err(p->dev, "unsupported reg-io-width (%u)\n", val);
+			return -EINVAL;
+		}
+	}
+	if (has_ucv)
+		dw8250_setup_port(up);
+
+	/* if we have a valid fifosize, try hooking up DMA here */
+	if (p->fifosize) {
+		up->dma = &data->dma;
+
+		up->dma->rxconf.src_maxburst = p->fifosize / 4;
+		up->dma->txconf.dst_maxburst = p->fifosize / 4;
+	}
+
+	if (!of_property_read_u32(np, "reg-shift", &val))
+		p->regshift = val;
+
+	/* get index of serial line, if found in DT aliases */
+	id = of_alias_get_id(np, "serial");
+	if (id >= 0)
+		p->line = id;
+
+	if (of_property_read_bool(np, "dcd-override")) {
+		/* Always report DCD as active */
+		data->msr_mask_on |= UART_MSR_DCD;
+		data->msr_mask_off |= UART_MSR_DDCD;
+	}
+
+	if (of_property_read_bool(np, "dsr-override")) {
+		/* Always report DSR as active */
+		data->msr_mask_on |= UART_MSR_DSR;
+		data->msr_mask_off |= UART_MSR_DDSR;
+	}
+
+	if (of_property_read_bool(np, "cts-override")) {
+		/* Always report CTS as active */
+		data->msr_mask_on |= UART_MSR_CTS;
+		data->msr_mask_off |= UART_MSR_DCTS;
+	}
+
+	if (of_property_read_bool(np, "ri-override")) {
+		/* Always report Ring indicator as inactive */
+		data->msr_mask_off |= UART_MSR_RI;
+		data->msr_mask_off |= UART_MSR_TERI;
+	}
+
+	return 0;
+}
+
+static int dw8250_probe_acpi(struct uart_8250_port *up,
+			     struct dw8250_data *data)
+{
+	struct uart_port *p = &up->port;
+
+	dw8250_setup_port(up);
+
+	p->iotype = UPIO_MEM32;
+	p->serial_in = dw8250_serial_in32;
+	p->serial_out = dw8250_serial_out32;
+	p->regshift = 2;
+
+	up->dma = &data->dma;
+
+	up->dma->rxconf.src_maxburst = p->fifosize / 4;
+	up->dma->txconf.dst_maxburst = p->fifosize / 4;
+
+	up->port.set_termios = dw8250_set_termios;
+
+	return 0;
+}
+
+static int dw8250_probe(struct platform_device *pdev)
+{
+	struct uart_8250_port uart = {};
+	struct resource *regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	int irq = platform_get_irq(pdev, 0);
+	struct dw8250_data *data;
+	int err;
+
+	if (!regs) {
+		dev_err(&pdev->dev, "no registers defined\n");
+		return -EINVAL;
+	}
+
+	if (irq < 0) {
+		if (irq != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "cannot get irq\n");
+		return irq;
+	}
+
+	spin_lock_init(&uart.port.lock);
+	uart.port.mapbase = regs->start;
+	uart.port.irq = irq;
+	uart.port.handle_irq = dw8250_handle_irq;
+	uart.port.pm = dw8250_do_pm;
+	uart.port.type = PORT_8250;
+	uart.port.flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_FIXED_PORT;
+	uart.port.dev = &pdev->dev;
+
+	uart.port.membase = devm_ioremap(&pdev->dev, regs->start,
+					 resource_size(regs));
+	if (!uart.port.membase)
+		return -ENOMEM;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->usr_reg = DW_UART_USR;
+
+	/* Always ask for fixed clock rate from a property. */
+	device_property_read_u32(&pdev->dev, "clock-frequency",
+				 &uart.port.uartclk);
+
+	/* If there is separate baudclk, get the rate from it. */
+	data->clk = devm_clk_get(&pdev->dev, "baudclk");
+	if (IS_ERR(data->clk) && PTR_ERR(data->clk) != -EPROBE_DEFER)
+		data->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(data->clk) && PTR_ERR(data->clk) == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
+	if (!IS_ERR_OR_NULL(data->clk)) {
+		err = clk_prepare_enable(data->clk);
+		if (err)
+			dev_warn(&pdev->dev, "could not enable optional baudclk: %d\n",
+				 err);
+		else
+			uart.port.uartclk = clk_get_rate(data->clk);
+	}
+
+	/* If no clock rate is defined, fail. */
+	if (!uart.port.uartclk) {
+		dev_err(&pdev->dev, "clock rate not defined\n");
+		return -EINVAL;
+	}
+
+	data->pclk = devm_clk_get(&pdev->dev, "apb_pclk");
+	if (IS_ERR(data->clk) && PTR_ERR(data->clk) == -EPROBE_DEFER) {
+		err = -EPROBE_DEFER;
+		goto err_clk;
+	}
+	if (!IS_ERR(data->pclk)) {
+		err = clk_prepare_enable(data->pclk);
+		if (err) {
+			dev_err(&pdev->dev, "could not enable apb_pclk\n");
+			goto err_clk;
+		}
+	}
+
+	data->rst = devm_reset_control_get_optional(&pdev->dev, NULL);
+	if (IS_ERR(data->rst) && PTR_ERR(data->rst) == -EPROBE_DEFER) {
+		err = -EPROBE_DEFER;
+		goto err_pclk;
+	}
+	if (!IS_ERR(data->rst))
+		reset_control_deassert(data->rst);
+
+	data->dma.rx_param = data;
+	data->dma.tx_param = data;
+	data->dma.fn = dw8250_dma_filter;
+
+	uart.port.iotype = UPIO_MEM;
+	uart.port.serial_in = dw8250_serial_in;
+	uart.port.serial_out = dw8250_serial_out;
+	uart.port.private_data = data;
+
+	if (pdev->dev.of_node) {
+		err = dw8250_probe_of(&uart.port, data);
+		if (err)
+			goto err_reset;
+	} else if (ACPI_HANDLE(&pdev->dev)) {
+		err = dw8250_probe_acpi(&uart, data);
+		if (err)
+			goto err_reset;
+	} else {
+		err = -ENODEV;
+		goto err_reset;
+	}
+
+	data->line = serial8250_register_8250_port(&uart);
+	if (data->line < 0) {
+		err = data->line;
+		goto err_reset;
+	}
+
+	platform_set_drvdata(pdev, data);
+
+	pm_runtime_set_active(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+
+err_reset:
+	if (!IS_ERR(data->rst))
+		reset_control_assert(data->rst);
+
+err_pclk:
+	if (!IS_ERR(data->pclk))
+		clk_disable_unprepare(data->pclk);
+
+err_clk:
+	if (!IS_ERR(data->clk))
+		clk_disable_unprepare(data->clk);
+
+	return err;
+}
+
+static int dw8250_remove(struct platform_device *pdev)
+{
+	struct dw8250_data *data = platform_get_drvdata(pdev);
+
+	pm_runtime_get_sync(&pdev->dev);
+
+	serial8250_unregister_port(data->line);
+
+	if (!IS_ERR(data->rst))
+		reset_control_assert(data->rst);
+
+	if (!IS_ERR(data->pclk))
+		clk_disable_unprepare(data->pclk);
+
+	if (!IS_ERR(data->clk))
+		clk_disable_unprepare(data->clk);
+
+	pm_runtime_disable(&pdev->dev);
+	pm_runtime_put_noidle(&pdev->dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int dw8250_suspend(struct device *dev)
+{
+	struct dw8250_data *data = dev_get_drvdata(dev);
+
+	serial8250_suspend_port(data->line);
+
+	return 0;
+}
+
+static int dw8250_resume(struct device *dev)
+{
+	struct dw8250_data *data = dev_get_drvdata(dev);
+
+	serial8250_resume_port(data->line);
+
+	return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+#ifdef CONFIG_PM
+static int dw8250_runtime_suspend(struct device *dev)
+{
+	struct dw8250_data *data = dev_get_drvdata(dev);
+
+	if (!IS_ERR(data->clk))
+		clk_disable_unprepare(data->clk);
+
+	if (!IS_ERR(data->pclk))
+		clk_disable_unprepare(data->pclk);
+
+	return 0;
+}
+
+static int dw8250_runtime_resume(struct device *dev)
+{
+	struct dw8250_data *data = dev_get_drvdata(dev);
+
+	if (!IS_ERR(data->pclk))
+		clk_prepare_enable(data->pclk);
+
+	if (!IS_ERR(data->clk))
+		clk_prepare_enable(data->clk);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops dw8250_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(dw8250_suspend, dw8250_resume)
+	SET_RUNTIME_PM_OPS(dw8250_runtime_suspend, dw8250_runtime_resume, NULL)
+};
+
+static const struct of_device_id dw8250_of_match[] = {
+	{ .compatible = "snps,dw-apb-uart" },
+	{ .compatible = "cavium,octeon-3860-uart" },
+	{ /* Sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, dw8250_of_match);
+
+static const struct acpi_device_id dw8250_acpi_match[] = {
+	{ "INT33C4", 0 },
+	{ "INT33C5", 0 },
+	{ "INT3434", 0 },
+	{ "INT3435", 0 },
+	{ "80860F0A", 0 },
+	{ "8086228A", 0 },
+	{ "APMC0D08", 0},
+	{ "AMD0020", 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(acpi, dw8250_acpi_match);
+
+static struct platform_driver dw8250_platform_driver = {
+	.driver = {
+		.name		= "dw-apb-uart",
+		.pm		= &dw8250_pm_ops,
+		.of_match_table	= dw8250_of_match,
+		.acpi_match_table = ACPI_PTR(dw8250_acpi_match),
+	},
+	.probe			= dw8250_probe,
+	.remove			= dw8250_remove,
+};
+
+module_platform_driver(dw8250_platform_driver);
+
+MODULE_AUTHOR("Jamie Iles");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Synopsys DesignWare 8250 serial port driver");
+MODULE_ALIAS("platform:dw-apb-uart");
diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c
new file mode 100644
index 000000000..f8adaf2c9
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_early.c
@@ -0,0 +1,154 @@
+/*
+ * Early serial console for 8250/16550 devices
+ *
+ * (c) Copyright 2004 Hewlett-Packard Development Company, L.P.
+ *	Bjorn Helgaas <bjorn.helgaas@hp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Based on the 8250.c serial driver, Copyright (C) 2001 Russell King,
+ * and on early_printk.c by Andi Kleen.
+ *
+ * This is for use before the serial driver has initialized, in
+ * particular, before the UARTs have been discovered and named.
+ * Instead of specifying the console device as, e.g., "ttyS0",
+ * we locate the device directly by its MMIO or I/O port address.
+ *
+ * The user can specify the device directly, e.g.,
+ *	earlycon=uart8250,io,0x3f8,9600n8
+ *	earlycon=uart8250,mmio,0xff5e0000,115200n8
+ *	earlycon=uart8250,mmio32,0xff5e0000,115200n8
+ * or
+ *	console=uart8250,io,0x3f8,9600n8
+ *	console=uart8250,mmio,0xff5e0000,115200n8
+ *	console=uart8250,mmio32,0xff5e0000,115200n8
+ */
+
+#include <linux/tty.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/serial_reg.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <asm/io.h>
+#include <asm/serial.h>
+
+unsigned int __weak __init serial8250_early_in(struct uart_port *port, int offset)
+{
+	switch (port->iotype) {
+	case UPIO_MEM:
+		return readb(port->membase + offset);
+	case UPIO_MEM32:
+		return readl(port->membase + (offset << 2));
+	case UPIO_MEM32BE:
+		return ioread32be(port->membase + (offset << 2));
+	case UPIO_PORT:
+		return inb(port->iobase + offset);
+	default:
+		return 0;
+	}
+}
+
+void __weak __init serial8250_early_out(struct uart_port *port, int offset, int value)
+{
+	switch (port->iotype) {
+	case UPIO_MEM:
+		writeb(value, port->membase + offset);
+		break;
+	case UPIO_MEM32:
+		writel(value, port->membase + (offset << 2));
+		break;
+	case UPIO_MEM32BE:
+		iowrite32be(value, port->membase + (offset << 2));
+		break;
+	case UPIO_PORT:
+		outb(value, port->iobase + offset);
+		break;
+	}
+}
+
+#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
+
+static void __init wait_for_xmitr(struct uart_port *port)
+{
+	unsigned int status;
+
+	for (;;) {
+		status = serial8250_early_in(port, UART_LSR);
+		if ((status & BOTH_EMPTY) == BOTH_EMPTY)
+			return;
+		cpu_relax();
+	}
+}
+
+static void __init serial_putc(struct uart_port *port, int c)
+{
+	wait_for_xmitr(port);
+	serial8250_early_out(port, UART_TX, c);
+}
+
+static void __init early_serial8250_write(struct console *console,
+          const char *s, unsigned int count, unsigned int loglevel)
+{
+	struct earlycon_device *device = console->data;
+	struct uart_port *port = &device->port;
+	unsigned int ier;
+
+	/* Save the IER and disable interrupts preserving the UUE bit */
+	ier = serial8250_early_in(port, UART_IER);
+	if (ier)
+		serial8250_early_out(port, UART_IER, ier & UART_IER_UUE);
+
+	uart_console_write(port, s, count, serial_putc);
+
+	/* Wait for transmitter to become empty and restore the IER */
+	wait_for_xmitr(port);
+
+	if (ier)
+		serial8250_early_out(port, UART_IER, ier);
+}
+
+static void __init init_port(struct earlycon_device *device)
+{
+	struct uart_port *port = &device->port;
+	unsigned int divisor;
+	unsigned char c;
+	unsigned int ier;
+
+	serial8250_early_out(port, UART_LCR, 0x3);	/* 8n1 */
+	ier = serial8250_early_in(port, UART_IER);
+	serial8250_early_out(port, UART_IER, ier & UART_IER_UUE); /* no interrupt */
+	serial8250_early_out(port, UART_FCR, 0);	/* no fifo */
+	serial8250_early_out(port, UART_MCR, 0x3);	/* DTR + RTS */
+
+	divisor = DIV_ROUND_CLOSEST(port->uartclk, 16 * device->baud);
+	c = serial8250_early_in(port, UART_LCR);
+	serial8250_early_out(port, UART_LCR, c | UART_LCR_DLAB);
+	serial8250_early_out(port, UART_DLL, divisor & 0xff);
+	serial8250_early_out(port, UART_DLM, (divisor >> 8) & 0xff);
+	serial8250_early_out(port, UART_LCR, c & ~UART_LCR_DLAB);
+}
+
+static int __init early_serial8250_setup(struct earlycon_device *device,
+					 const char *options)
+{
+	if (!(device->port.membase || device->port.iobase))
+		return -ENODEV;
+
+	if (!device->baud) {
+		struct uart_port *port = &device->port;
+		unsigned int ier;
+
+		/* assume the device was initialized, only mask interrupts */
+		ier = serial8250_early_in(port, UART_IER);
+		serial8250_early_out(port, UART_IER, ier & UART_IER_UUE);
+	} else
+		init_port(device);
+
+	device->con->write = early_serial8250_write;
+	return 0;
+}
+EARLYCON_DECLARE(uart8250, early_serial8250_setup);
+EARLYCON_DECLARE(uart, early_serial8250_setup);
diff --git a/drivers/tty/serial/8250/8250_em.c b/drivers/tty/serial/8250/8250_em.c
new file mode 100644
index 000000000..0b6381214
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_em.c
@@ -0,0 +1,170 @@
+/*
+ * Renesas Emma Mobile 8250 driver
+ *
+ *  Copyright (C) 2012 Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_reg.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/slab.h>
+
+#include "8250.h"
+
+#define UART_DLL_EM 9
+#define UART_DLM_EM 10
+
+struct serial8250_em_priv {
+	struct clk *sclk;
+	int line;
+};
+
+static void serial8250_em_serial_out(struct uart_port *p, int offset, int value)
+{
+	switch (offset) {
+	case UART_TX: /* TX @ 0x00 */
+		writeb(value, p->membase);
+		break;
+	case UART_FCR: /* FCR @ 0x0c (+1) */
+	case UART_LCR: /* LCR @ 0x10 (+1) */
+	case UART_MCR: /* MCR @ 0x14 (+1) */
+	case UART_SCR: /* SCR @ 0x20 (+1) */
+		writel(value, p->membase + ((offset + 1) << 2));
+		break;
+	case UART_IER: /* IER @ 0x04 */
+		value &= 0x0f; /* only 4 valid bits - not Xscale */
+		/* fall-through */
+	case UART_DLL_EM: /* DLL @ 0x24 (+9) */
+	case UART_DLM_EM: /* DLM @ 0x28 (+9) */
+		writel(value, p->membase + (offset << 2));
+	}
+}
+
+static unsigned int serial8250_em_serial_in(struct uart_port *p, int offset)
+{
+	switch (offset) {
+	case UART_RX: /* RX @ 0x00 */
+		return readb(p->membase);
+	case UART_MCR: /* MCR @ 0x14 (+1) */
+	case UART_LSR: /* LSR @ 0x18 (+1) */
+	case UART_MSR: /* MSR @ 0x1c (+1) */
+	case UART_SCR: /* SCR @ 0x20 (+1) */
+		return readl(p->membase + ((offset + 1) << 2));
+	case UART_IER: /* IER @ 0x04 */
+	case UART_IIR: /* IIR @ 0x08 */
+	case UART_DLL_EM: /* DLL @ 0x24 (+9) */
+	case UART_DLM_EM: /* DLM @ 0x28 (+9) */
+		return readl(p->membase + (offset << 2));
+	}
+	return 0;
+}
+
+static int serial8250_em_serial_dl_read(struct uart_8250_port *up)
+{
+	return serial_in(up, UART_DLL_EM) | serial_in(up, UART_DLM_EM) << 8;
+}
+
+static void serial8250_em_serial_dl_write(struct uart_8250_port *up, int value)
+{
+	serial_out(up, UART_DLL_EM, value & 0xff);
+	serial_out(up, UART_DLM_EM, value >> 8 & 0xff);
+}
+
+static int serial8250_em_probe(struct platform_device *pdev)
+{
+	struct resource *regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	struct resource *irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	struct serial8250_em_priv *priv;
+	struct uart_8250_port up;
+	int ret;
+
+	if (!regs || !irq) {
+		dev_err(&pdev->dev, "missing registers or irq\n");
+		return -EINVAL;
+	}
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->sclk = devm_clk_get(&pdev->dev, "sclk");
+	if (IS_ERR(priv->sclk)) {
+		dev_err(&pdev->dev, "unable to get clock\n");
+		return PTR_ERR(priv->sclk);
+	}
+
+	memset(&up, 0, sizeof(up));
+	up.port.mapbase = regs->start;
+	up.port.irq = irq->start;
+	up.port.type = PORT_UNKNOWN;
+	up.port.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_PORT | UPF_IOREMAP;
+	up.port.dev = &pdev->dev;
+	up.port.private_data = priv;
+
+	clk_prepare_enable(priv->sclk);
+	up.port.uartclk = clk_get_rate(priv->sclk);
+
+	up.port.iotype = UPIO_MEM32;
+	up.port.serial_in = serial8250_em_serial_in;
+	up.port.serial_out = serial8250_em_serial_out;
+	up.dl_read = serial8250_em_serial_dl_read;
+	up.dl_write = serial8250_em_serial_dl_write;
+
+	ret = serial8250_register_8250_port(&up);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "unable to register 8250 port\n");
+		clk_disable_unprepare(priv->sclk);
+		return ret;
+	}
+
+	priv->line = ret;
+	platform_set_drvdata(pdev, priv);
+	return 0;
+}
+
+static int serial8250_em_remove(struct platform_device *pdev)
+{
+	struct serial8250_em_priv *priv = platform_get_drvdata(pdev);
+
+	serial8250_unregister_port(priv->line);
+	clk_disable_unprepare(priv->sclk);
+	return 0;
+}
+
+static const struct of_device_id serial8250_em_dt_ids[] = {
+	{ .compatible = "renesas,em-uart", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, serial8250_em_dt_ids);
+
+static struct platform_driver serial8250_em_platform_driver = {
+	.driver = {
+		.name		= "serial8250-em",
+		.of_match_table = serial8250_em_dt_ids,
+	},
+	.probe			= serial8250_em_probe,
+	.remove			= serial8250_em_remove,
+};
+
+module_platform_driver(serial8250_em_platform_driver);
+
+MODULE_AUTHOR("Magnus Damm");
+MODULE_DESCRIPTION("Renesas Emma Mobile 8250 Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/tty/serial/8250/8250_exar_st16c554.c b/drivers/tty/serial/8250/8250_exar_st16c554.c
new file mode 100644
index 000000000..bf53aabf9
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
@@ -0,0 +1,50 @@
+/*
+ *  Written by Paul B Schroeder < pschroeder "at" uplogix "dot" com >
+ *  Based on 8250_boca.
+ *
+ *  Copyright (C) 2005 Russell King.
+ *  Data taken from include/asm-i386/serial.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+
+#define PORT(_base,_irq)				\
+	{						\
+		.iobase		= _base,		\
+		.irq		= _irq,			\
+		.uartclk	= 1843200,		\
+		.iotype		= UPIO_PORT,		\
+		.flags		= UPF_BOOT_AUTOCONF,	\
+	}
+
+static struct plat_serial8250_port exar_data[] = {
+	PORT(0x100, 5),
+	PORT(0x108, 5),
+	PORT(0x110, 5),
+	PORT(0x118, 5),
+	{ },
+};
+
+static struct platform_device exar_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_EXAR_ST16C554,
+	.dev			= {
+		.platform_data	= exar_data,
+	},
+};
+
+static int __init exar_init(void)
+{
+	return platform_device_register(&exar_device);
+}
+
+module_init(exar_init);
+
+MODULE_AUTHOR("Paul B Schroeder");
+MODULE_DESCRIPTION("8250 serial probe module for Exar cards");
+MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/8250/8250_fintek.c b/drivers/tty/serial/8250/8250_fintek.c
new file mode 100644
index 000000000..5815e81b5
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_fintek.c
@@ -0,0 +1,240 @@
+/*
+ *  Probe for F81216A LPC to 4 UART
+ *
+ *  Based on drivers/tty/serial/8250_pnp.c, by Russell King, et al
+ *
+ *  Copyright (C) 2014 Ricardo Ribalda, Qtechnology A/S
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ */
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/pnp.h>
+#include <linux/kernel.h>
+#include <linux/serial_core.h>
+#include  "8250.h"
+
+#define ADDR_PORT 0x4E
+#define DATA_PORT 0x4F
+#define ENTRY_KEY 0x77
+#define EXIT_KEY 0xAA
+#define CHIP_ID1  0x20
+#define CHIP_ID1_VAL 0x02
+#define CHIP_ID2  0x21
+#define CHIP_ID2_VAL 0x16
+#define VENDOR_ID1 0x23
+#define VENDOR_ID1_VAL 0x19
+#define VENDOR_ID2 0x24
+#define VENDOR_ID2_VAL 0x34
+#define LDN 0x7
+
+#define RS485  0xF0
+#define RTS_INVERT BIT(5)
+#define RS485_URA BIT(4)
+#define RXW4C_IRA BIT(3)
+#define TXW4C_IRA BIT(2)
+
+#define DRIVER_NAME "8250_fintek"
+
+static int fintek_8250_enter_key(void){
+
+	if (!request_muxed_region(ADDR_PORT, 2, DRIVER_NAME))
+		return -EBUSY;
+
+	outb(ENTRY_KEY, ADDR_PORT);
+	outb(ENTRY_KEY, ADDR_PORT);
+	return 0;
+}
+
+static void fintek_8250_exit_key(void){
+
+	outb(EXIT_KEY, ADDR_PORT);
+	release_region(ADDR_PORT, 2);
+}
+
+static int fintek_8250_get_index(resource_size_t base_addr)
+{
+	resource_size_t base[] = {0x3f8, 0x2f8, 0x3e8, 0x2e8};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(base); i++)
+		if (base_addr == base[i])
+			return i;
+
+	return -ENODEV;
+}
+
+static int fintek_8250_check_id(void)
+{
+
+	outb(CHIP_ID1, ADDR_PORT);
+	if (inb(DATA_PORT) != CHIP_ID1_VAL)
+		return -ENODEV;
+
+	outb(CHIP_ID2, ADDR_PORT);
+	if (inb(DATA_PORT) != CHIP_ID2_VAL)
+		return -ENODEV;
+
+	outb(VENDOR_ID1, ADDR_PORT);
+	if (inb(DATA_PORT) != VENDOR_ID1_VAL)
+		return -ENODEV;
+
+	outb(VENDOR_ID2, ADDR_PORT);
+	if (inb(DATA_PORT) != VENDOR_ID2_VAL)
+		return -ENODEV;
+
+	return 0;
+}
+
+static int fintek_8250_rs485_config(struct uart_port *port,
+			      struct serial_rs485 *rs485)
+{
+	uint8_t config = 0;
+	int index = fintek_8250_get_index(port->iobase);
+
+	if (index < 0)
+		return -EINVAL;
+
+	if (rs485->flags & SER_RS485_ENABLED)
+		memset(rs485->padding, 0, sizeof(rs485->padding));
+	else
+		memset(rs485, 0, sizeof(*rs485));
+
+	rs485->flags &= SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND |
+			SER_RS485_RTS_AFTER_SEND;
+
+	if (rs485->delay_rts_before_send) {
+		rs485->delay_rts_before_send = 1;
+		config |= TXW4C_IRA;
+	}
+
+	if (rs485->delay_rts_after_send) {
+		rs485->delay_rts_after_send = 1;
+		config |= RXW4C_IRA;
+	}
+
+	if ((!!(rs485->flags & SER_RS485_RTS_ON_SEND)) ==
+			(!!(rs485->flags & SER_RS485_RTS_AFTER_SEND)))
+		rs485->flags &= SER_RS485_ENABLED;
+	else
+		config |= RS485_URA;
+
+	if (rs485->flags & SER_RS485_RTS_ON_SEND)
+		config |= RTS_INVERT;
+
+	if (fintek_8250_enter_key())
+		return -EBUSY;
+
+	outb(LDN, ADDR_PORT);
+	outb(index, DATA_PORT);
+	outb(RS485, ADDR_PORT);
+	outb(config, DATA_PORT);
+	fintek_8250_exit_key();
+
+	port->rs485 = *rs485;
+
+	return 0;
+}
+
+static int
+fintek_8250_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
+{
+	int line;
+	struct uart_8250_port uart;
+	int ret;
+
+	if (!pnp_port_valid(dev, 0))
+		return -ENODEV;
+
+	if (fintek_8250_get_index(pnp_port_start(dev, 0)) < 0)
+		return -ENODEV;
+
+	/* Enable configuration registers*/
+	if (fintek_8250_enter_key())
+		return -EBUSY;
+
+	/*Check ID*/
+	ret = fintek_8250_check_id();
+	fintek_8250_exit_key();
+	if (ret)
+		return ret;
+
+	memset(&uart, 0, sizeof(uart));
+	if (!pnp_irq_valid(dev, 0))
+		return -ENODEV;
+	uart.port.irq = pnp_irq(dev, 0);
+	uart.port.iobase = pnp_port_start(dev, 0);
+	uart.port.iotype = UPIO_PORT;
+	uart.port.rs485_config = fintek_8250_rs485_config;
+
+	uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
+	if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
+		uart.port.flags |= UPF_SHARE_IRQ;
+	uart.port.uartclk = 1843200;
+	uart.port.dev = &dev->dev;
+
+	line = serial8250_register_8250_port(&uart);
+	if (line < 0)
+		return -ENODEV;
+
+	pnp_set_drvdata(dev, (void *)((long)line + 1));
+	return 0;
+}
+
+static void fintek_8250_remove(struct pnp_dev *dev)
+{
+	long line = (long)pnp_get_drvdata(dev);
+
+	if (line)
+		serial8250_unregister_port(line - 1);
+}
+
+#ifdef CONFIG_PM
+static int fintek_8250_suspend(struct pnp_dev *dev, pm_message_t state)
+{
+	long line = (long)pnp_get_drvdata(dev);
+
+	if (!line)
+		return -ENODEV;
+	serial8250_suspend_port(line - 1);
+	return 0;
+}
+
+static int fintek_8250_resume(struct pnp_dev *dev)
+{
+	long line = (long)pnp_get_drvdata(dev);
+
+	if (!line)
+		return -ENODEV;
+	serial8250_resume_port(line - 1);
+	return 0;
+}
+#else
+#define fintek_8250_suspend NULL
+#define fintek_8250_resume NULL
+#endif /* CONFIG_PM */
+
+static const struct pnp_device_id fintek_dev_table[] = {
+	/* Qtechnology Panel PC / IO1000 */
+	{ "PNP0501"},
+	{}
+};
+
+MODULE_DEVICE_TABLE(pnp, fintek_dev_table);
+
+static struct pnp_driver fintek_8250_driver = {
+	.name		= DRIVER_NAME,
+	.probe		= fintek_8250_probe,
+	.remove		= fintek_8250_remove,
+	.suspend	= fintek_8250_suspend,
+	.resume		= fintek_8250_resume,
+	.id_table	= fintek_dev_table,
+};
+
+module_pnp_driver(fintek_8250_driver);
+MODULE_DESCRIPTION("Fintek F812164 module");
+MODULE_AUTHOR("Ricardo Ribalda <ricardo.ribalda@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/serial/8250/8250_fourport.c
new file mode 100644
index 000000000..be1582609
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_fourport.c
@@ -0,0 +1,51 @@
+/*
+ *  Copyright (C) 2005 Russell King.
+ *  Data taken from include/asm-i386/serial.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+
+#define PORT(_base,_irq)						\
+	{								\
+		.iobase		= _base,				\
+		.irq		= _irq,					\
+		.uartclk	= 1843200,				\
+		.iotype		= UPIO_PORT,				\
+		.flags		= UPF_BOOT_AUTOCONF | UPF_FOURPORT,	\
+	}
+
+static struct plat_serial8250_port fourport_data[] = {
+	PORT(0x1a0, 9),
+	PORT(0x1a8, 9),
+	PORT(0x1b0, 9),
+	PORT(0x1b8, 9),
+	PORT(0x2a0, 5),
+	PORT(0x2a8, 5),
+	PORT(0x2b0, 5),
+	PORT(0x2b8, 5),
+	{ },
+};
+
+static struct platform_device fourport_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_FOURPORT,
+	.dev			= {
+		.platform_data	= fourport_data,
+	},
+};
+
+static int __init fourport_init(void)
+{
+	return platform_device_register(&fourport_device);
+}
+
+module_init(fourport_init);
+
+MODULE_AUTHOR("Russell King");
+MODULE_DESCRIPTION("8250 serial probe module for AST Fourport cards");
+MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/8250/8250_fsl.c b/drivers/tty/serial/8250/8250_fsl.c
new file mode 100644
index 000000000..c0533a57e
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_fsl.c
@@ -0,0 +1,62 @@
+#include <linux/serial_reg.h>
+#include <linux/serial_8250.h>
+
+#include "8250.h"
+
+/*
+ * Freescale 16550 UART "driver", Copyright (C) 2011 Paul Gortmaker.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This isn't a full driver; it just provides an alternate IRQ
+ * handler to deal with an errata.  Everything else is just
+ * using the bog standard 8250 support.
+ *
+ * We follow code flow of serial8250_default_handle_irq() but add
+ * a check for a break and insert a dummy read on the Rx for the
+ * immediately following IRQ event.
+ *
+ * We re-use the already existing "bug handling" lsr_saved_flags
+ * field to carry the "what we just did" information from the one
+ * IRQ event to the next one.
+ */
+
+int fsl8250_handle_irq(struct uart_port *port)
+{
+	unsigned char lsr, orig_lsr;
+	unsigned long flags;
+	unsigned int iir;
+	struct uart_8250_port *up = up_to_u8250p(port);
+
+	spin_lock_irqsave(&up->port.lock, flags);
+
+	iir = port->serial_in(port, UART_IIR);
+	if (iir & UART_IIR_NO_INT) {
+		spin_unlock_irqrestore(&up->port.lock, flags);
+		return 0;
+	}
+
+	/* This is the WAR; if last event was BRK, then read and return */
+	if (unlikely(up->lsr_saved_flags & UART_LSR_BI)) {
+		up->lsr_saved_flags &= ~UART_LSR_BI;
+		port->serial_in(port, UART_RX);
+		spin_unlock_irqrestore(&up->port.lock, flags);
+		return 1;
+	}
+
+	lsr = orig_lsr = up->port.serial_in(&up->port, UART_LSR);
+
+	if (lsr & (UART_LSR_DR | UART_LSR_BI))
+		lsr = serial8250_rx_chars(up, lsr);
+
+	serial8250_modem_status(up);
+
+	if (lsr & UART_LSR_THRE)
+		serial8250_tx_chars(up);
+
+	up->lsr_saved_flags = orig_lsr;
+	spin_unlock_irqrestore(&up->port.lock, flags);
+	return 1;
+}
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
new file mode 100644
index 000000000..2e3ea1a70
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -0,0 +1,129 @@
+/*
+ *	Serial Device Initialisation for Lasi/Asp/Wax/Dino
+ *
+ *	(c) Copyright Matthew Wilcox <willy@debian.org> 2001-2002
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *      the Free Software Foundation; either version 2 of the License, or
+ *      (at your option) any later version.
+ */
+
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/module.h>
+#include <linux/serial_core.h>
+#include <linux/signal.h>
+#include <linux/types.h>
+
+#include <asm/hardware.h>
+#include <asm/parisc-device.h>
+#include <asm/io.h>
+
+#include "8250.h"
+
+static int __init serial_init_chip(struct parisc_device *dev)
+{
+	struct uart_8250_port uart;
+	unsigned long address;
+	int err;
+
+#ifdef CONFIG_64BIT
+	if (!dev->irq && (dev->id.sversion == 0xad))
+		dev->irq = iosapic_serial_irq(dev);
+#endif
+
+	if (!dev->irq) {
+		/* We find some unattached serial ports by walking native
+		 * busses.  These should be silently ignored.  Otherwise,
+		 * what we have here is a missing parent device, so tell
+		 * the user what they're missing.
+		 */
+		if (parisc_parent(dev)->id.hw_type != HPHW_IOA)
+			printk(KERN_INFO
+				"Serial: device 0x%llx not configured.\n"
+				"Enable support for Wax, Lasi, Asp or Dino.\n",
+				(unsigned long long)dev->hpa.start);
+		return -ENODEV;
+	}
+
+	address = dev->hpa.start;
+	if (dev->id.sversion != 0x8d)
+		address += 0x800;
+
+	memset(&uart, 0, sizeof(uart));
+	uart.port.iotype	= UPIO_MEM;
+	/* 7.272727MHz on Lasi.  Assumed the same for Dino, Wax and Timi. */
+	uart.port.uartclk	= (dev->id.sversion != 0xad) ?
+					7272727 : 1843200;
+	uart.port.mapbase	= address;
+	uart.port.membase	= ioremap_nocache(address, 16);
+	uart.port.irq	= dev->irq;
+	uart.port.flags	= UPF_BOOT_AUTOCONF;
+	uart.port.dev	= &dev->dev;
+
+	err = serial8250_register_8250_port(&uart);
+	if (err < 0) {
+		printk(KERN_WARNING
+			"serial8250_register_8250_port returned error %d\n", err);
+		iounmap(uart.port.membase);
+		return err;
+	}
+
+	return 0;
+}
+
+static struct parisc_device_id serial_tbl[] = {
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00075 },
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008c },
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x0008d },
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x000ad },
+	{ 0 }
+};
+
+/* Hack.  Some machines have SERIAL_0 attached to Lasi and SERIAL_1
+ * attached to Dino.  Unfortunately, Dino appears before Lasi in the device
+ * tree.  To ensure that ttyS0 == SERIAL_0, we register two drivers; one
+ * which only knows about Lasi and then a second which will find all the
+ * other serial ports.  HPUX ignores this problem.
+ */
+static struct parisc_device_id lasi_tbl[] = {
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03B, 0x0008C }, /* C1xx/C1xxL */
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03C, 0x0008C }, /* B132L */
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03D, 0x0008C }, /* B160L */
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03E, 0x0008C }, /* B132L+ */
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x03F, 0x0008C }, /* B180L+ */
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x046, 0x0008C }, /* Rocky2 120 */
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x047, 0x0008C }, /* Rocky2 150 */
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x04E, 0x0008C }, /* Kiji L2 132 */
+	{ HPHW_FIO, HVERSION_REV_ANY_ID, 0x056, 0x0008C }, /* Raven+ */
+	{ 0 }
+};
+
+
+MODULE_DEVICE_TABLE(parisc, serial_tbl);
+
+static struct parisc_driver lasi_driver = {
+	.name		= "serial_1",
+	.id_table	= lasi_tbl,
+	.probe		= serial_init_chip,
+};
+
+static struct parisc_driver serial_driver = {
+	.name		= "serial",
+	.id_table	= serial_tbl,
+	.probe		= serial_init_chip,
+};
+
+static int __init probe_serial_gsc(void)
+{
+	register_parisc_driver(&lasi_driver);
+	register_parisc_driver(&serial_driver);
+	return 0;
+}
+
+module_init(probe_serial_gsc);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/8250/8250_hp300.c
new file mode 100644
index 000000000..2891958cd
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -0,0 +1,322 @@
+/*
+ * Driver for the 98626/98644/internal serial interface on hp300/hp400
+ * (based on the National Semiconductor INS8250/NS16550AF/WD16C552 UARTs)
+ *
+ * Ported from 2.2 and modified to use the normal 8250 driver
+ * by Kars de Jong <jongk@linux-m68k.org>, May 2004.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/delay.h>
+#include <linux/dio.h>
+#include <linux/console.h>
+#include <linux/slab.h>
+#include <asm/io.h>
+
+#include "8250.h"
+
+#if !defined(CONFIG_HPDCA) && !defined(CONFIG_HPAPCI)
+#warning CONFIG_SERIAL_8250 defined but neither CONFIG_HPDCA nor CONFIG_HPAPCI defined, are you sure?
+#endif
+
+#ifdef CONFIG_HPAPCI
+struct hp300_port
+{
+	struct hp300_port *next;	/* next port */
+	int line;			/* line (tty) number */
+};
+
+static struct hp300_port *hp300_ports;
+#endif
+
+#ifdef CONFIG_HPDCA
+
+static int hpdca_init_one(struct dio_dev *d,
+					const struct dio_device_id *ent);
+static void hpdca_remove_one(struct dio_dev *d);
+
+static struct dio_device_id hpdca_dio_tbl[] = {
+	{ DIO_ID_DCA0 },
+	{ DIO_ID_DCA0REM },
+	{ DIO_ID_DCA1 },
+	{ DIO_ID_DCA1REM },
+	{ 0 }
+};
+
+static struct dio_driver hpdca_driver = {
+	.name      = "hpdca",
+	.id_table  = hpdca_dio_tbl,
+	.probe     = hpdca_init_one,
+	.remove    = hpdca_remove_one,
+};
+
+#endif
+
+static unsigned int num_ports;
+
+extern int hp300_uart_scode;
+
+/* Offset to UART registers from base of DCA */
+#define UART_OFFSET	17
+
+#define DCA_ID		0x01	/* ID (read), reset (write) */
+#define DCA_IC		0x03	/* Interrupt control        */
+
+/* Interrupt control */
+#define DCA_IC_IE	0x80	/* Master interrupt enable  */
+
+#define HPDCA_BAUD_BASE 153600
+
+/* Base address of the Frodo part */
+#define FRODO_BASE	(0x41c000)
+
+/*
+ * Where we find the 8250-like APCI ports, and how far apart they are.
+ */
+#define FRODO_APCIBASE		0x0
+#define FRODO_APCISPACE		0x20
+#define FRODO_APCI_OFFSET(x)	(FRODO_APCIBASE + ((x) * FRODO_APCISPACE))
+
+#define HPAPCI_BAUD_BASE 500400
+
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+/*
+ * Parse the bootinfo to find descriptions for headless console and
+ * debug serial ports and register them with the 8250 driver.
+ */
+int __init hp300_setup_serial_console(void)
+{
+	int scode;
+	struct uart_port port;
+
+	memset(&port, 0, sizeof(port));
+
+	if (hp300_uart_scode < 0 || hp300_uart_scode > DIO_SCMAX)
+		return 0;
+
+	if (DIO_SCINHOLE(hp300_uart_scode))
+		return 0;
+
+	scode = hp300_uart_scode;
+
+	/* Memory mapped I/O */
+	port.iotype = UPIO_MEM;
+	port.flags = UPF_SKIP_TEST | UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF;
+	port.type = PORT_UNKNOWN;
+
+	/* Check for APCI console */
+	if (scode == 256) {
+#ifdef CONFIG_HPAPCI
+		printk(KERN_INFO "Serial console is HP APCI 1\n");
+
+		port.uartclk = HPAPCI_BAUD_BASE * 16;
+		port.mapbase = (FRODO_BASE + FRODO_APCI_OFFSET(1));
+		port.membase = (char *)(port.mapbase + DIO_VIRADDRBASE);
+		port.regshift = 2;
+		add_preferred_console("ttyS", port.line, "9600n8");
+#else
+		printk(KERN_WARNING "Serial console is APCI but support is disabled (CONFIG_HPAPCI)!\n");
+		return 0;
+#endif
+	} else {
+#ifdef CONFIG_HPDCA
+		unsigned long pa = dio_scodetophysaddr(scode);
+		if (!pa)
+			return 0;
+
+		printk(KERN_INFO "Serial console is HP DCA at select code %d\n", scode);
+
+		port.uartclk = HPDCA_BAUD_BASE * 16;
+		port.mapbase = (pa + UART_OFFSET);
+		port.membase = (char *)(port.mapbase + DIO_VIRADDRBASE);
+		port.regshift = 1;
+		port.irq = DIO_IPL(pa + DIO_VIRADDRBASE);
+
+		/* Enable board-interrupts */
+		out_8(pa + DIO_VIRADDRBASE + DCA_IC, DCA_IC_IE);
+
+		if (DIO_ID(pa + DIO_VIRADDRBASE) & 0x80)
+			add_preferred_console("ttyS", port.line, "9600n8");
+#else
+		printk(KERN_WARNING "Serial console is DCA but support is disabled (CONFIG_HPDCA)!\n");
+		return 0;
+#endif
+	}
+
+	if (early_serial_setup(&port) < 0)
+		printk(KERN_WARNING "hp300_setup_serial_console(): early_serial_setup() failed.\n");
+	return 0;
+}
+#endif /* CONFIG_SERIAL_8250_CONSOLE */
+
+#ifdef CONFIG_HPDCA
+static int hpdca_init_one(struct dio_dev *d,
+				const struct dio_device_id *ent)
+{
+	struct uart_8250_port uart;
+	int line;
+
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+	if (hp300_uart_scode == d->scode) {
+		/* Already got it. */
+		return 0;
+	}
+#endif
+	memset(&uart, 0, sizeof(uart));
+
+	/* Memory mapped I/O */
+	uart.port.iotype = UPIO_MEM;
+	uart.port.flags = UPF_SKIP_TEST | UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF;
+	uart.port.irq = d->ipl;
+	uart.port.uartclk = HPDCA_BAUD_BASE * 16;
+	uart.port.mapbase = (d->resource.start + UART_OFFSET);
+	uart.port.membase = (char *)(uart.port.mapbase + DIO_VIRADDRBASE);
+	uart.port.regshift = 1;
+	uart.port.dev = &d->dev;
+	line = serial8250_register_8250_port(&uart);
+
+	if (line < 0) {
+		printk(KERN_NOTICE "8250_hp300: register_serial() DCA scode %d"
+		       " irq %d failed\n", d->scode, uart.port.irq);
+		return -ENOMEM;
+	}
+
+	/* Enable board-interrupts */
+	out_8(d->resource.start + DIO_VIRADDRBASE + DCA_IC, DCA_IC_IE);
+	dio_set_drvdata(d, (void *)line);
+
+	/* Reset the DCA */
+	out_8(d->resource.start + DIO_VIRADDRBASE + DCA_ID, 0xff);
+	udelay(100);
+
+	num_ports++;
+
+	return 0;
+}
+#endif
+
+static int __init hp300_8250_init(void)
+{
+	static int called;
+#ifdef CONFIG_HPAPCI
+	int line;
+	unsigned long base;
+	struct uart_8250_port uart;
+	struct hp300_port *port;
+	int i;
+#endif
+	if (called)
+		return -ENODEV;
+	called = 1;
+
+	if (!MACH_IS_HP300)
+		return -ENODEV;
+
+#ifdef CONFIG_HPDCA
+	dio_register_driver(&hpdca_driver);
+#endif
+#ifdef CONFIG_HPAPCI
+	if (hp300_model < HP_400) {
+		if (!num_ports)
+			return -ENODEV;
+		return 0;
+	}
+	/* These models have the Frodo chip.
+	 * Port 0 is reserved for the Apollo Domain keyboard.
+	 * Port 1 is either the console or the DCA.
+	 */
+	for (i = 1; i < 4; i++) {
+		/* Port 1 is the console on a 425e, on other machines it's
+		 * mapped to DCA.
+		 */
+#ifdef CONFIG_SERIAL_8250_CONSOLE
+		if (i == 1)
+			continue;
+#endif
+
+		/* Create new serial device */
+		port = kmalloc(sizeof(struct hp300_port), GFP_KERNEL);
+		if (!port)
+			return -ENOMEM;
+
+		memset(&uart, 0, sizeof(uart));
+
+		base = (FRODO_BASE + FRODO_APCI_OFFSET(i));
+
+		/* Memory mapped I/O */
+		uart.port.iotype = UPIO_MEM;
+		uart.port.flags = UPF_SKIP_TEST | UPF_SHARE_IRQ \
+			      | UPF_BOOT_AUTOCONF;
+		/* XXX - no interrupt support yet */
+		uart.port.irq = 0;
+		uart.port.uartclk = HPAPCI_BAUD_BASE * 16;
+		uart.port.mapbase = base;
+		uart.port.membase = (char *)(base + DIO_VIRADDRBASE);
+		uart.port.regshift = 2;
+
+		line = serial8250_register_8250_port(&uart);
+
+		if (line < 0) {
+			printk(KERN_NOTICE "8250_hp300: register_serial() APCI"
+			       " %d irq %d failed\n", i, uart.port.irq);
+			kfree(port);
+			continue;
+		}
+
+		port->line = line;
+		port->next = hp300_ports;
+		hp300_ports = port;
+
+		num_ports++;
+	}
+#endif
+
+	/* Any boards found? */
+	if (!num_ports)
+		return -ENODEV;
+
+	return 0;
+}
+
+#ifdef CONFIG_HPDCA
+static void hpdca_remove_one(struct dio_dev *d)
+{
+	int line;
+
+	line = (int) dio_get_drvdata(d);
+	if (d->resource.start) {
+		/* Disable board-interrupts */
+		out_8(d->resource.start + DIO_VIRADDRBASE + DCA_IC, 0);
+	}
+	serial8250_unregister_port(line);
+}
+#endif
+
+static void __exit hp300_8250_exit(void)
+{
+#ifdef CONFIG_HPAPCI
+	struct hp300_port *port, *to_free;
+
+	for (port = hp300_ports; port; ) {
+		serial8250_unregister_port(port->line);
+		to_free = port;
+		port = port->next;
+		kfree(to_free);
+	}
+
+	hp300_ports = NULL;
+#endif
+#ifdef CONFIG_HPDCA
+	dio_unregister_driver(&hpdca_driver);
+#endif
+}
+
+module_init(hp300_8250_init);
+module_exit(hp300_8250_exit);
+MODULE_DESCRIPTION("HP DCA/APCI serial driver");
+MODULE_AUTHOR("Kars de Jong <jongk@linux-m68k.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/8250/8250_hub6.c b/drivers/tty/serial/8250/8250_hub6.c
new file mode 100644
index 000000000..a5c778e83
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_hub6.c
@@ -0,0 +1,56 @@
+/*
+ *  Copyright (C) 2005 Russell King.
+ *  Data taken from include/asm-i386/serial.h
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/serial_8250.h>
+
+#define HUB6(card,port)							\
+	{								\
+		.iobase		= 0x302,				\
+		.irq		= 3,					\
+		.uartclk	= 1843200,				\
+		.iotype		= UPIO_HUB6,				\
+		.flags		= UPF_BOOT_AUTOCONF,			\
+		.hub6		= (card) << 6 | (port) << 3 | 1,	\
+	}
+
+static struct plat_serial8250_port hub6_data[] = {
+	HUB6(0, 0),
+	HUB6(0, 1),
+	HUB6(0, 2),
+	HUB6(0, 3),
+	HUB6(0, 4),
+	HUB6(0, 5),
+	HUB6(1, 0),
+	HUB6(1, 1),
+	HUB6(1, 2),
+	HUB6(1, 3),
+	HUB6(1, 4),
+	HUB6(1, 5),
+	{ },
+};
+
+static struct platform_device hub6_device = {
+	.name			= "serial8250",
+	.id			= PLAT8250_DEV_HUB6,
+	.dev			= {
+		.platform_data	= hub6_data,
+	},
+};
+
+static int __init hub6_init(void)
+{
+	return platform_device_register(&hub6_device);
+}
+
+module_init(hub6_init);
+
+MODULE_AUTHOR("Russell King");
+MODULE_DESCRIPTION("8250 serial probe module for Hub6 cards");
+MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
new file mode 100644
index 000000000..7a11fac77
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -0,0 +1,294 @@
+/*
+ * Mediatek 8250 driver.
+ *
+ * Copyright (c) 2014 MundoReader S.L.
+ * Author: Matthias Brugger <matthias.bgg@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_reg.h>
+
+#include "8250.h"
+
+#define UART_MTK_HIGHS		0x09	/* Highspeed register */
+#define UART_MTK_SAMPLE_COUNT	0x0a	/* Sample count register */
+#define UART_MTK_SAMPLE_POINT	0x0b	/* Sample point register */
+#define MTK_UART_RATE_FIX	0x0d	/* UART Rate Fix Register */
+
+struct mtk8250_data {
+	int			line;
+	struct clk		*uart_clk;
+};
+
+static void
+mtk8250_set_termios(struct uart_port *port, struct ktermios *termios,
+			struct ktermios *old)
+{
+	unsigned long flags;
+	unsigned int baud, quot;
+
+	struct uart_8250_port *up =
+		container_of(port, struct uart_8250_port, port);
+
+	serial8250_do_set_termios(port, termios, old);
+
+	/*
+	 * Mediatek UARTs use an extra highspeed register (UART_MTK_HIGHS)
+	 *
+	 * We need to recalcualte the quot register, as the claculation depends
+	 * on the vaule in the highspeed register.
+	 *
+	 * Some baudrates are not supported by the chip, so we use the next
+	 * lower rate supported and update termios c_flag.
+	 *
+	 * If highspeed register is set to 3, we need to specify sample count
+	 * and sample point to increase accuracy. If not, we reset the
+	 * registers to their default values.
+	 */
+	baud = uart_get_baud_rate(port, termios, old,
+				  port->uartclk / 16 / 0xffff,
+				  port->uartclk / 16);
+
+	if (baud <= 115200) {
+		serial_port_out(port, UART_MTK_HIGHS, 0x0);
+		quot = uart_get_divisor(port, baud);
+	} else if (baud <= 576000) {
+		serial_port_out(port, UART_MTK_HIGHS, 0x2);
+
+		/* Set to next lower baudrate supported */
+		if ((baud == 500000) || (baud == 576000))
+			baud = 460800;
+		quot = DIV_ROUND_UP(port->uartclk, 4 * baud);
+	} else {
+		serial_port_out(port, UART_MTK_HIGHS, 0x3);
+
+		/* Set to highest baudrate supported */
+		if (baud >= 1152000)
+			baud = 921600;
+		quot = DIV_ROUND_UP(port->uartclk, 256 * baud);
+	}
+
+	/*
+	 * Ok, we're now changing the port state.  Do it with
+	 * interrupts disabled.
+	 */
+	spin_lock_irqsave(&port->lock, flags);
+
+	/* set DLAB we have cval saved in up->lcr from the call to the core */
+	serial_port_out(port, UART_LCR, up->lcr | UART_LCR_DLAB);
+	serial_dl_write(up, quot);
+
+	/* reset DLAB */
+	serial_port_out(port, UART_LCR, up->lcr);
+
+	if (baud > 460800) {
+		unsigned int tmp;
+
+		tmp = DIV_ROUND_CLOSEST(port->uartclk, quot * baud);
+		serial_port_out(port, UART_MTK_SAMPLE_COUNT, tmp - 1);
+		serial_port_out(port, UART_MTK_SAMPLE_POINT,
+					(tmp - 2) >> 1);
+	} else {
+		serial_port_out(port, UART_MTK_SAMPLE_COUNT, 0x00);
+		serial_port_out(port, UART_MTK_SAMPLE_POINT, 0xff);
+	}
+
+	spin_unlock_irqrestore(&port->lock, flags);
+	/* Don't rewrite B0 */
+	if (tty_termios_baud_rate(termios))
+		tty_termios_encode_baud_rate(termios, baud, baud);
+}
+
+static void
+mtk8250_do_pm(struct uart_port *port, unsigned int state, unsigned int old)
+{
+	if (!state)
+		pm_runtime_get_sync(port->dev);
+
+	serial8250_do_pm(port, state, old);
+
+	if (state)
+		pm_runtime_put_sync_suspend(port->dev);
+}
+
+static int mtk8250_probe_of(struct platform_device *pdev, struct uart_port *p,
+			   struct mtk8250_data *data)
+{
+	int err;
+	struct device_node *np = pdev->dev.of_node;
+
+	data->uart_clk = of_clk_get(np, 0);
+	if (IS_ERR(data->uart_clk)) {
+		dev_warn(&pdev->dev, "Can't get timer clock\n");
+		return PTR_ERR(data->uart_clk);
+	}
+
+	err = clk_prepare_enable(data->uart_clk);
+	if (err) {
+		dev_warn(&pdev->dev, "Can't prepare clock\n");
+		clk_put(data->uart_clk);
+		return err;
+	}
+	p->uartclk = clk_get_rate(data->uart_clk);
+
+	return 0;
+}
+
+static int mtk8250_probe(struct platform_device *pdev)
+{
+	struct uart_8250_port uart = {};
+	struct resource *regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	struct resource *irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	struct mtk8250_data *data;
+	int err;
+
+	if (!regs || !irq) {
+		dev_err(&pdev->dev, "no registers/irq defined\n");
+		return -EINVAL;
+	}
+
+	uart.port.membase = devm_ioremap(&pdev->dev, regs->start,
+					 resource_size(regs));
+	if (!uart.port.membase)
+		return -ENOMEM;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	if (pdev->dev.of_node) {
+		err = mtk8250_probe_of(pdev, &uart.port, data);
+		if (err)
+			return err;
+	} else
+		return -ENODEV;
+
+	spin_lock_init(&uart.port.lock);
+	uart.port.mapbase = regs->start;
+	uart.port.irq = irq->start;
+	uart.port.pm = mtk8250_do_pm;
+	uart.port.type = PORT_16550;
+	uart.port.flags = UPF_BOOT_AUTOCONF | UPF_FIXED_PORT;
+	uart.port.dev = &pdev->dev;
+	uart.port.iotype = UPIO_MEM32;
+	uart.port.regshift = 2;
+	uart.port.private_data = data;
+	uart.port.set_termios = mtk8250_set_termios;
+
+	/* Disable Rate Fix function */
+	writel(0x0, uart.port.membase +
+			(MTK_UART_RATE_FIX << uart.port.regshift));
+
+	data->line = serial8250_register_8250_port(&uart);
+	if (data->line < 0)
+		return data->line;
+
+	platform_set_drvdata(pdev, data);
+
+	pm_runtime_set_active(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+
+	return 0;
+}
+
+static int mtk8250_remove(struct platform_device *pdev)
+{
+	struct mtk8250_data *data = platform_get_drvdata(pdev);
+
+	pm_runtime_get_sync(&pdev->dev);
+
+	serial8250_unregister_port(data->line);
+	if (!IS_ERR(data->uart_clk)) {
+		clk_disable_unprepare(data->uart_clk);
+		clk_put(data->uart_clk);
+	}
+
+	pm_runtime_disable(&pdev->dev);
+	pm_runtime_put_noidle(&pdev->dev);
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int mtk8250_suspend(struct device *dev)
+{
+	struct mtk8250_data *data = dev_get_drvdata(dev);
+
+	serial8250_suspend_port(data->line);
+
+	return 0;
+}
+
+static int mtk8250_resume(struct device *dev)
+{
+	struct mtk8250_data *data = dev_get_drvdata(dev);
+
+	serial8250_resume_port(data->line);
+
+	return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+#ifdef CONFIG_PM
+static int mtk8250_runtime_suspend(struct device *dev)
+{
+	struct mtk8250_data *data = dev_get_drvdata(dev);
+
+	if (!IS_ERR(data->uart_clk))
+		clk_disable_unprepare(data->uart_clk);
+
+	return 0;
+}
+
+static int mtk8250_runtime_resume(struct device *dev)
+{
+	struct mtk8250_data *data = dev_get_drvdata(dev);
+
+	if (!IS_ERR(data->uart_clk))
+		clk_prepare_enable(data->uart_clk);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops mtk8250_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(mtk8250_suspend, mtk8250_resume)
+	SET_RUNTIME_PM_OPS(mtk8250_runtime_suspend, mtk8250_runtime_resume,
+				NULL)
+};
+
+static const struct of_device_id mtk8250_of_match[] = {
+	{ .compatible = "mediatek,mt6577-uart" },
+	{ /* Sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mtk8250_of_match);
+
+static struct platform_driver mtk8250_platform_driver = {
+	.driver = {
+		.name		= "mt6577-uart",
+		.pm		= &mtk8250_pm_ops,
+		.of_match_table	= mtk8250_of_match,
+	},
+	.probe			= mtk8250_probe,
+	.remove			= mtk8250_remove,
+};
+module_platform_driver(mtk8250_platform_driver);
+
+MODULE_AUTHOR("Matthias Brugger");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Mediatek 8250 serial port driver");
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
new file mode 100644
index 000000000..dce1a2370
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -0,0 +1,1408 @@
+/*
+ * 8250-core based driver for the OMAP internal UART
+ *
+ * based on omap-serial.c, Copyright (C) 2010 Texas Instruments.
+ *
+ * Copyright (C) 2014 Sebastian Andrzej Siewior
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_reg.h>
+#include <linux/tty_flip.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_irq.h>
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <linux/console.h>
+#include <linux/pm_qos.h>
+#include <linux/dma-mapping.h>
+
+#include "8250.h"
+
+#define DEFAULT_CLK_SPEED	48000000
+
+#define UART_ERRATA_i202_MDR1_ACCESS	(1 << 0)
+#define OMAP_UART_WER_HAS_TX_WAKEUP	(1 << 1)
+#define OMAP_DMA_TX_KICK		(1 << 2)
+
+#define OMAP_UART_FCR_RX_TRIG		6
+#define OMAP_UART_FCR_TX_TRIG		4
+
+/* SCR register bitmasks */
+#define OMAP_UART_SCR_RX_TRIG_GRANU1_MASK	(1 << 7)
+#define OMAP_UART_SCR_TX_TRIG_GRANU1_MASK	(1 << 6)
+#define OMAP_UART_SCR_TX_EMPTY			(1 << 3)
+#define OMAP_UART_SCR_DMAMODE_MASK		(3 << 1)
+#define OMAP_UART_SCR_DMAMODE_1			(1 << 1)
+#define OMAP_UART_SCR_DMAMODE_CTL		(1 << 0)
+
+/* MVR register bitmasks */
+#define OMAP_UART_MVR_SCHEME_SHIFT	30
+#define OMAP_UART_LEGACY_MVR_MAJ_MASK	0xf0
+#define OMAP_UART_LEGACY_MVR_MAJ_SHIFT	4
+#define OMAP_UART_LEGACY_MVR_MIN_MASK	0x0f
+#define OMAP_UART_MVR_MAJ_MASK		0x700
+#define OMAP_UART_MVR_MAJ_SHIFT		8
+#define OMAP_UART_MVR_MIN_MASK		0x3f
+
+#define UART_TI752_TLR_TX	0
+#define UART_TI752_TLR_RX	4
+
+#define TRIGGER_TLR_MASK(x)	((x & 0x3c) >> 2)
+#define TRIGGER_FCR_MASK(x)	(x & 3)
+
+/* Enable XON/XOFF flow control on output */
+#define OMAP_UART_SW_TX		0x08
+/* Enable XON/XOFF flow control on input */
+#define OMAP_UART_SW_RX		0x02
+
+#define OMAP_UART_WER_MOD_WKUP	0x7f
+#define OMAP_UART_TX_WAKEUP_EN	(1 << 7)
+
+#define TX_TRIGGER	1
+#define RX_TRIGGER	48
+
+#define OMAP_UART_TCR_RESTORE(x)	((x / 4) << 4)
+#define OMAP_UART_TCR_HALT(x)		((x / 4) << 0)
+
+#define UART_BUILD_REVISION(x, y)	(((x) << 8) | (y))
+
+#define OMAP_UART_REV_46 0x0406
+#define OMAP_UART_REV_52 0x0502
+#define OMAP_UART_REV_63 0x0603
+
+struct omap8250_priv {
+	int line;
+	u8 habit;
+	u8 mdr1;
+	u8 efr;
+	u8 scr;
+	u8 wer;
+	u8 xon;
+	u8 xoff;
+	u8 delayed_restore;
+	u16 quot;
+
+	bool is_suspending;
+	int wakeirq;
+	int wakeups_enabled;
+	u32 latency;
+	u32 calc_latency;
+	struct pm_qos_request pm_qos_request;
+	struct work_struct qos_work;
+	struct uart_8250_dma omap8250_dma;
+};
+
+static u32 uart_read(struct uart_8250_port *up, u32 reg)
+{
+	return readl(up->port.membase + (reg << up->port.regshift));
+}
+
+static void omap8250_set_mctrl(struct uart_port *port, unsigned int mctrl)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	struct omap8250_priv *priv = up->port.private_data;
+	u8 lcr;
+
+	serial8250_do_set_mctrl(port, mctrl);
+
+	/*
+	 * Turn off autoRTS if RTS is lowered and restore autoRTS setting
+	 * if RTS is raised
+	 */
+	lcr = serial_in(up, UART_LCR);
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+	if ((mctrl & TIOCM_RTS) && (port->status & UPSTAT_AUTORTS))
+		priv->efr |= UART_EFR_RTS;
+	else
+		priv->efr &= ~UART_EFR_RTS;
+	serial_out(up, UART_EFR, priv->efr);
+	serial_out(up, UART_LCR, lcr);
+}
+
+/*
+ * Work Around for Errata i202 (2430, 3430, 3630, 4430 and 4460)
+ * The access to uart register after MDR1 Access
+ * causes UART to corrupt data.
+ *
+ * Need a delay =
+ * 5 L4 clock cycles + 5 UART functional clock cycle (@48MHz = ~0.2uS)
+ * give 10 times as much
+ */
+static void omap_8250_mdr1_errataset(struct uart_8250_port *up,
+				     struct omap8250_priv *priv)
+{
+	u8 timeout = 255;
+	u8 old_mdr1;
+
+	old_mdr1 = serial_in(up, UART_OMAP_MDR1);
+	if (old_mdr1 == priv->mdr1)
+		return;
+
+	serial_out(up, UART_OMAP_MDR1, priv->mdr1);
+	udelay(2);
+	serial_out(up, UART_FCR, up->fcr | UART_FCR_CLEAR_XMIT |
+			UART_FCR_CLEAR_RCVR);
+	/*
+	 * Wait for FIFO to empty: when empty, RX_FIFO_E bit is 0 and
+	 * TX_FIFO_E bit is 1.
+	 */
+	while (UART_LSR_THRE != (serial_in(up, UART_LSR) &
+				(UART_LSR_THRE | UART_LSR_DR))) {
+		timeout--;
+		if (!timeout) {
+			/* Should *never* happen. we warn and carry on */
+			dev_crit(up->port.dev, "Errata i202: timedout %x\n",
+				 serial_in(up, UART_LSR));
+			break;
+		}
+		udelay(1);
+	}
+}
+
+static void omap_8250_get_divisor(struct uart_port *port, unsigned int baud,
+				  struct omap8250_priv *priv)
+{
+	unsigned int uartclk = port->uartclk;
+	unsigned int div_13, div_16;
+	unsigned int abs_d13, abs_d16;
+
+	/*
+	 * Old custom speed handling.
+	 */
+	if (baud == 38400 && (port->flags & UPF_SPD_MASK) == UPF_SPD_CUST) {
+		priv->quot = port->custom_divisor & 0xffff;
+		/*
+		 * I assume that nobody is using this. But hey, if somebody
+		 * would like to specify the divisor _and_ the mode then the
+		 * driver is ready and waiting for it.
+		 */
+		if (port->custom_divisor & (1 << 16))
+			priv->mdr1 = UART_OMAP_MDR1_13X_MODE;
+		else
+			priv->mdr1 = UART_OMAP_MDR1_16X_MODE;
+		return;
+	}
+	div_13 = DIV_ROUND_CLOSEST(uartclk, 13 * baud);
+	div_16 = DIV_ROUND_CLOSEST(uartclk, 16 * baud);
+
+	if (!div_13)
+		div_13 = 1;
+	if (!div_16)
+		div_16 = 1;
+
+	abs_d13 = abs(baud - uartclk / 13 / div_13);
+	abs_d16 = abs(baud - uartclk / 16 / div_16);
+
+	if (abs_d13 >= abs_d16) {
+		priv->mdr1 = UART_OMAP_MDR1_16X_MODE;
+		priv->quot = div_16;
+	} else {
+		priv->mdr1 = UART_OMAP_MDR1_13X_MODE;
+		priv->quot = div_13;
+	}
+}
+
+static void omap8250_update_scr(struct uart_8250_port *up,
+				struct omap8250_priv *priv)
+{
+	u8 old_scr;
+
+	old_scr = serial_in(up, UART_OMAP_SCR);
+	if (old_scr == priv->scr)
+		return;
+
+	/*
+	 * The manual recommends not to enable the DMA mode selector in the SCR
+	 * (instead of the FCR) register _and_ selecting the DMA mode as one
+	 * register write because this may lead to malfunction.
+	 */
+	if (priv->scr & OMAP_UART_SCR_DMAMODE_MASK)
+		serial_out(up, UART_OMAP_SCR,
+			   priv->scr & ~OMAP_UART_SCR_DMAMODE_MASK);
+	serial_out(up, UART_OMAP_SCR, priv->scr);
+}
+
+static void omap8250_restore_regs(struct uart_8250_port *up)
+{
+	struct omap8250_priv *priv = up->port.private_data;
+	struct uart_8250_dma	*dma = up->dma;
+
+	if (dma && dma->tx_running) {
+		/*
+		 * TCSANOW requests the change to occur immediately however if
+		 * we have a TX-DMA operation in progress then it has been
+		 * observed that it might stall and never complete. Therefore we
+		 * delay DMA completes to prevent this hang from happen.
+		 */
+		priv->delayed_restore = 1;
+		return;
+	}
+
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+	serial_out(up, UART_EFR, UART_EFR_ECB);
+
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
+	serial_out(up, UART_MCR, UART_MCR_TCRTLR);
+	serial_out(up, UART_FCR, up->fcr);
+
+	omap8250_update_scr(up, priv);
+
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+
+	serial_out(up, UART_TI752_TCR, OMAP_UART_TCR_RESTORE(16) |
+			OMAP_UART_TCR_HALT(52));
+	serial_out(up, UART_TI752_TLR,
+		   TRIGGER_TLR_MASK(TX_TRIGGER) << UART_TI752_TLR_TX |
+		   TRIGGER_TLR_MASK(RX_TRIGGER) << UART_TI752_TLR_RX);
+
+	serial_out(up, UART_LCR, 0);
+
+	/* drop TCR + TLR access, we setup XON/XOFF later */
+	serial_out(up, UART_MCR, up->mcr);
+	serial_out(up, UART_IER, up->ier);
+
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+	serial_dl_write(up, priv->quot);
+
+	serial_out(up, UART_EFR, priv->efr);
+
+	/* Configure flow control */
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+	serial_out(up, UART_XON1, priv->xon);
+	serial_out(up, UART_XOFF1, priv->xoff);
+
+	serial_out(up, UART_LCR, up->lcr);
+	/* need mode A for FCR */
+	if (priv->habit & UART_ERRATA_i202_MDR1_ACCESS)
+		omap_8250_mdr1_errataset(up, priv);
+	else
+		serial_out(up, UART_OMAP_MDR1, priv->mdr1);
+	up->port.ops->set_mctrl(&up->port, up->port.mctrl);
+}
+
+/*
+ * OMAP can use "CLK / (16 or 13) / div" for baud rate. And then we have have
+ * some differences in how we want to handle flow control.
+ */
+static void omap_8250_set_termios(struct uart_port *port,
+				  struct ktermios *termios,
+				  struct ktermios *old)
+{
+	struct uart_8250_port *up =
+		container_of(port, struct uart_8250_port, port);
+	struct omap8250_priv *priv = up->port.private_data;
+	unsigned char cval = 0;
+	unsigned int baud;
+
+	switch (termios->c_cflag & CSIZE) {
+	case CS5:
+		cval = UART_LCR_WLEN5;
+		break;
+	case CS6:
+		cval = UART_LCR_WLEN6;
+		break;
+	case CS7:
+		cval = UART_LCR_WLEN7;
+		break;
+	default:
+	case CS8:
+		cval = UART_LCR_WLEN8;
+		break;
+	}
+
+	if (termios->c_cflag & CSTOPB)
+		cval |= UART_LCR_STOP;
+	if (termios->c_cflag & PARENB)
+		cval |= UART_LCR_PARITY;
+	if (!(termios->c_cflag & PARODD))
+		cval |= UART_LCR_EPAR;
+	if (termios->c_cflag & CMSPAR)
+		cval |= UART_LCR_SPAR;
+
+	/*
+	 * Ask the core to calculate the divisor for us.
+	 */
+	baud = uart_get_baud_rate(port, termios, old,
+				  port->uartclk / 16 / 0xffff,
+				  port->uartclk / 13);
+	omap_8250_get_divisor(port, baud, priv);
+
+	/*
+	 * Ok, we're now changing the port state. Do it with
+	 * interrupts disabled.
+	 */
+	pm_runtime_get_sync(port->dev);
+	spin_lock_irq(&port->lock);
+
+	/*
+	 * Update the per-port timeout.
+	 */
+	uart_update_timeout(port, termios->c_cflag, baud);
+
+	up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
+	if (termios->c_iflag & INPCK)
+		up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
+	if (termios->c_iflag & (IGNBRK | PARMRK))
+		up->port.read_status_mask |= UART_LSR_BI;
+
+	/*
+	 * Characters to ignore
+	 */
+	up->port.ignore_status_mask = 0;
+	if (termios->c_iflag & IGNPAR)
+		up->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
+	if (termios->c_iflag & IGNBRK) {
+		up->port.ignore_status_mask |= UART_LSR_BI;
+		/*
+		 * If we're ignoring parity and break indicators,
+		 * ignore overruns too (for real raw support).
+		 */
+		if (termios->c_iflag & IGNPAR)
+			up->port.ignore_status_mask |= UART_LSR_OE;
+	}
+
+	/*
+	 * ignore all characters if CREAD is not set
+	 */
+	if ((termios->c_cflag & CREAD) == 0)
+		up->port.ignore_status_mask |= UART_LSR_DR;
+
+	/*
+	 * Modem status interrupts
+	 */
+	up->ier &= ~UART_IER_MSI;
+	if (UART_ENABLE_MS(&up->port, termios->c_cflag))
+		up->ier |= UART_IER_MSI;
+
+	up->lcr = cval;
+	/* Up to here it was mostly serial8250_do_set_termios() */
+
+	/*
+	 * We enable TRIG_GRANU for RX and TX and additionaly we set
+	 * SCR_TX_EMPTY bit. The result is the following:
+	 * - RX_TRIGGER amount of bytes in the FIFO will cause an interrupt.
+	 * - less than RX_TRIGGER number of bytes will also cause an interrupt
+	 *   once the UART decides that there no new bytes arriving.
+	 * - Once THRE is enabled, the interrupt will be fired once the FIFO is
+	 *   empty - the trigger level is ignored here.
+	 *
+	 * Once DMA is enabled:
+	 * - UART will assert the TX DMA line once there is room for TX_TRIGGER
+	 *   bytes in the TX FIFO. On each assert the DMA engine will move
+	 *   TX_TRIGGER bytes into the FIFO.
+	 * - UART will assert the RX DMA line once there are RX_TRIGGER bytes in
+	 *   the FIFO and move RX_TRIGGER bytes.
+	 * This is because threshold and trigger values are the same.
+	 */
+	up->fcr = UART_FCR_ENABLE_FIFO;
+	up->fcr |= TRIGGER_FCR_MASK(TX_TRIGGER) << OMAP_UART_FCR_TX_TRIG;
+	up->fcr |= TRIGGER_FCR_MASK(RX_TRIGGER) << OMAP_UART_FCR_RX_TRIG;
+
+	priv->scr = OMAP_UART_SCR_RX_TRIG_GRANU1_MASK | OMAP_UART_SCR_TX_EMPTY |
+		OMAP_UART_SCR_TX_TRIG_GRANU1_MASK;
+
+	if (up->dma)
+		priv->scr |= OMAP_UART_SCR_DMAMODE_1 |
+			OMAP_UART_SCR_DMAMODE_CTL;
+
+	priv->xon = termios->c_cc[VSTART];
+	priv->xoff = termios->c_cc[VSTOP];
+
+	priv->efr = 0;
+	up->mcr &= ~(UART_MCR_RTS | UART_MCR_XONANY);
+	up->port.status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS | UPSTAT_AUTOXOFF);
+
+	if (termios->c_cflag & CRTSCTS && up->port.flags & UPF_HARD_FLOW) {
+		/* Enable AUTOCTS (autoRTS is enabled when RTS is raised) */
+		up->port.status |= UPSTAT_AUTOCTS | UPSTAT_AUTORTS;
+		priv->efr |= UART_EFR_CTS;
+	} else	if (up->port.flags & UPF_SOFT_FLOW) {
+		/*
+		 * IXON Flag:
+		 * Enable XON/XOFF flow control on input.
+		 * Receiver compares XON1, XOFF1.
+		 */
+		if (termios->c_iflag & IXON)
+			priv->efr |= OMAP_UART_SW_RX;
+
+		/*
+		 * IXOFF Flag:
+		 * Enable XON/XOFF flow control on output.
+		 * Transmit XON1, XOFF1
+		 */
+		if (termios->c_iflag & IXOFF) {
+			up->port.status |= UPSTAT_AUTOXOFF;
+			priv->efr |= OMAP_UART_SW_TX;
+		}
+
+		/*
+		 * IXANY Flag:
+		 * Enable any character to restart output.
+		 * Operation resumes after receiving any
+		 * character after recognition of the XOFF character
+		 */
+		if (termios->c_iflag & IXANY)
+			up->mcr |= UART_MCR_XONANY;
+	}
+	omap8250_restore_regs(up);
+
+	spin_unlock_irq(&up->port.lock);
+	pm_runtime_mark_last_busy(port->dev);
+	pm_runtime_put_autosuspend(port->dev);
+
+	/* calculate wakeup latency constraint */
+	priv->calc_latency = USEC_PER_SEC * 64 * 8 / baud;
+	priv->latency = priv->calc_latency;
+
+	schedule_work(&priv->qos_work);
+
+	/* Don't rewrite B0 */
+	if (tty_termios_baud_rate(termios))
+		tty_termios_encode_baud_rate(termios, baud, baud);
+}
+
+/* same as 8250 except that we may have extra flow bits set in EFR */
+static void omap_8250_pm(struct uart_port *port, unsigned int state,
+			 unsigned int oldstate)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	u8 efr;
+
+	pm_runtime_get_sync(port->dev);
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+	efr = serial_in(up, UART_EFR);
+	serial_out(up, UART_EFR, efr | UART_EFR_ECB);
+	serial_out(up, UART_LCR, 0);
+
+	serial_out(up, UART_IER, (state != 0) ? UART_IERX_SLEEP : 0);
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
+	serial_out(up, UART_EFR, efr);
+	serial_out(up, UART_LCR, 0);
+
+	pm_runtime_mark_last_busy(port->dev);
+	pm_runtime_put_autosuspend(port->dev);
+}
+
+static void omap_serial_fill_features_erratas(struct uart_8250_port *up,
+					      struct omap8250_priv *priv)
+{
+	u32 mvr, scheme;
+	u16 revision, major, minor;
+
+	mvr = uart_read(up, UART_OMAP_MVER);
+
+	/* Check revision register scheme */
+	scheme = mvr >> OMAP_UART_MVR_SCHEME_SHIFT;
+
+	switch (scheme) {
+	case 0: /* Legacy Scheme: OMAP2/3 */
+		/* MINOR_REV[0:4], MAJOR_REV[4:7] */
+		major = (mvr & OMAP_UART_LEGACY_MVR_MAJ_MASK) >>
+			OMAP_UART_LEGACY_MVR_MAJ_SHIFT;
+		minor = (mvr & OMAP_UART_LEGACY_MVR_MIN_MASK);
+		break;
+	case 1:
+		/* New Scheme: OMAP4+ */
+		/* MINOR_REV[0:5], MAJOR_REV[8:10] */
+		major = (mvr & OMAP_UART_MVR_MAJ_MASK) >>
+			OMAP_UART_MVR_MAJ_SHIFT;
+		minor = (mvr & OMAP_UART_MVR_MIN_MASK);
+		break;
+	default:
+		dev_warn(up->port.dev,
+			 "Unknown revision, defaulting to highest\n");
+		/* highest possible revision */
+		major = 0xff;
+		minor = 0xff;
+	}
+	/* normalize revision for the driver */
+	revision = UART_BUILD_REVISION(major, minor);
+
+	switch (revision) {
+	case OMAP_UART_REV_46:
+		priv->habit = UART_ERRATA_i202_MDR1_ACCESS;
+		break;
+	case OMAP_UART_REV_52:
+		priv->habit = UART_ERRATA_i202_MDR1_ACCESS |
+				OMAP_UART_WER_HAS_TX_WAKEUP;
+		break;
+	case OMAP_UART_REV_63:
+		priv->habit = UART_ERRATA_i202_MDR1_ACCESS |
+			OMAP_UART_WER_HAS_TX_WAKEUP;
+		break;
+	default:
+		break;
+	}
+}
+
+static void omap8250_uart_qos_work(struct work_struct *work)
+{
+	struct omap8250_priv *priv;
+
+	priv = container_of(work, struct omap8250_priv, qos_work);
+	pm_qos_update_request(&priv->pm_qos_request, priv->latency);
+}
+
+static irqreturn_t omap_wake_irq(int irq, void *dev_id)
+{
+	struct uart_port *port = dev_id;
+	int ret;
+
+	ret = port->handle_irq(port);
+	if (ret)
+		return IRQ_HANDLED;
+	return IRQ_NONE;
+}
+
+#ifdef CONFIG_SERIAL_8250_DMA
+static int omap_8250_dma_handle_irq(struct uart_port *port);
+#endif
+
+static irqreturn_t omap8250_irq(int irq, void *dev_id)
+{
+	struct uart_port *port = dev_id;
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned int iir;
+	int ret;
+
+#ifdef CONFIG_SERIAL_8250_DMA
+	if (up->dma) {
+		ret = omap_8250_dma_handle_irq(port);
+		return IRQ_RETVAL(ret);
+	}
+#endif
+
+	serial8250_rpm_get(up);
+	iir = serial_port_in(port, UART_IIR);
+	ret = serial8250_handle_irq(port, iir);
+	serial8250_rpm_put(up);
+
+	return IRQ_RETVAL(ret);
+}
+
+static int omap_8250_startup(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	struct omap8250_priv *priv = port->private_data;
+	int ret;
+
+	if (priv->wakeirq) {
+		ret = request_irq(priv->wakeirq, omap_wake_irq,
+				  port->irqflags, "uart wakeup irq", port);
+		if (ret)
+			return ret;
+		disable_irq(priv->wakeirq);
+	}
+
+	pm_runtime_get_sync(port->dev);
+
+	up->mcr = 0;
+	serial_out(up, UART_FCR, UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);
+
+	serial_out(up, UART_LCR, UART_LCR_WLEN8);
+
+	up->lsr_saved_flags = 0;
+	up->msr_saved_flags = 0;
+
+	if (up->dma) {
+		ret = serial8250_request_dma(up);
+		if (ret) {
+			dev_warn_ratelimited(port->dev,
+					     "failed to request DMA\n");
+			up->dma = NULL;
+		}
+	}
+
+	ret = request_irq(port->irq, omap8250_irq, IRQF_SHARED,
+			  dev_name(port->dev), port);
+	if (ret < 0)
+		goto err;
+
+	up->ier = UART_IER_RLSI | UART_IER_RDI;
+	serial_out(up, UART_IER, up->ier);
+
+#ifdef CONFIG_PM
+	up->capabilities |= UART_CAP_RPM;
+#endif
+
+	/* Enable module level wake up */
+	priv->wer = OMAP_UART_WER_MOD_WKUP;
+	if (priv->habit & OMAP_UART_WER_HAS_TX_WAKEUP)
+		priv->wer |= OMAP_UART_TX_WAKEUP_EN;
+	serial_out(up, UART_OMAP_WER, priv->wer);
+
+	if (up->dma)
+		up->dma->rx_dma(up, 0);
+
+	pm_runtime_mark_last_busy(port->dev);
+	pm_runtime_put_autosuspend(port->dev);
+	return 0;
+err:
+	pm_runtime_mark_last_busy(port->dev);
+	pm_runtime_put_autosuspend(port->dev);
+	if (priv->wakeirq)
+		free_irq(priv->wakeirq, port);
+	return ret;
+}
+
+static void omap_8250_shutdown(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	struct omap8250_priv *priv = port->private_data;
+
+	flush_work(&priv->qos_work);
+	if (up->dma)
+		up->dma->rx_dma(up, UART_IIR_RX_TIMEOUT);
+
+	pm_runtime_get_sync(port->dev);
+
+	serial_out(up, UART_OMAP_WER, 0);
+
+	up->ier = 0;
+	serial_out(up, UART_IER, 0);
+
+	if (up->dma)
+		serial8250_release_dma(up);
+
+	/*
+	 * Disable break condition and FIFOs
+	 */
+	if (up->lcr & UART_LCR_SBC)
+		serial_out(up, UART_LCR, up->lcr & ~UART_LCR_SBC);
+	serial_out(up, UART_FCR, UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);
+
+	pm_runtime_mark_last_busy(port->dev);
+	pm_runtime_put_autosuspend(port->dev);
+
+	free_irq(port->irq, port);
+	if (priv->wakeirq)
+		free_irq(priv->wakeirq, port);
+}
+
+static void omap_8250_throttle(struct uart_port *port)
+{
+	unsigned long flags;
+	struct uart_8250_port *up =
+		container_of(port, struct uart_8250_port, port);
+
+	pm_runtime_get_sync(port->dev);
+
+	spin_lock_irqsave(&port->lock, flags);
+	up->ier &= ~(UART_IER_RLSI | UART_IER_RDI);
+	serial_out(up, UART_IER, up->ier);
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	pm_runtime_mark_last_busy(port->dev);
+	pm_runtime_put_autosuspend(port->dev);
+}
+
+static void omap_8250_unthrottle(struct uart_port *port)
+{
+	unsigned long flags;
+	struct uart_8250_port *up =
+		container_of(port, struct uart_8250_port, port);
+
+	pm_runtime_get_sync(port->dev);
+
+	spin_lock_irqsave(&port->lock, flags);
+	up->ier |= UART_IER_RLSI | UART_IER_RDI;
+	serial_out(up, UART_IER, up->ier);
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	pm_runtime_mark_last_busy(port->dev);
+	pm_runtime_put_autosuspend(port->dev);
+}
+
+#ifdef CONFIG_SERIAL_8250_DMA
+static int omap_8250_rx_dma(struct uart_8250_port *p, unsigned int iir);
+
+static void __dma_rx_do_complete(struct uart_8250_port *p, bool error)
+{
+	struct uart_8250_dma    *dma = p->dma;
+	struct tty_port         *tty_port = &p->port.state->port;
+	struct dma_tx_state     state;
+	int                     count;
+
+	dma_sync_single_for_cpu(dma->rxchan->device->dev, dma->rx_addr,
+				dma->rx_size, DMA_FROM_DEVICE);
+
+	dma->rx_running = 0;
+	dmaengine_tx_status(dma->rxchan, dma->rx_cookie, &state);
+	dmaengine_terminate_all(dma->rxchan);
+
+	count = dma->rx_size - state.residue;
+
+	tty_insert_flip_string(tty_port, dma->rx_buf, count);
+	p->port.icount.rx += count;
+	if (!error)
+		omap_8250_rx_dma(p, 0);
+
+	tty_flip_buffer_push(tty_port);
+}
+
+static void __dma_rx_complete(void *param)
+{
+	__dma_rx_do_complete(param, false);
+}
+
+static int omap_8250_rx_dma(struct uart_8250_port *p, unsigned int iir)
+{
+	struct uart_8250_dma            *dma = p->dma;
+	struct dma_async_tx_descriptor  *desc;
+
+	switch (iir & 0x3f) {
+	case UART_IIR_RLSI:
+		/* 8250_core handles errors and break interrupts */
+		if (dma->rx_running) {
+			dmaengine_pause(dma->rxchan);
+			__dma_rx_do_complete(p, true);
+		}
+		return -EIO;
+	case UART_IIR_RX_TIMEOUT:
+		/*
+		 * If RCVR FIFO trigger level was not reached, complete the
+		 * transfer and let 8250_core copy the remaining data.
+		 */
+		if (dma->rx_running) {
+			dmaengine_pause(dma->rxchan);
+			__dma_rx_do_complete(p, true);
+		}
+		return -ETIMEDOUT;
+	case UART_IIR_RDI:
+		/*
+		 * The OMAP UART is a special BEAST. If we receive RDI we _have_
+		 * a DMA transfer programmed but it didn't work. One reason is
+		 * that we were too slow and there were too many bytes in the
+		 * FIFO, the UART counted wrong and never kicked the DMA engine
+		 * to do anything. That means once we receive RDI on OMAP then
+		 * the DMA won't do anything soon so we have to cancel the DMA
+		 * transfer and purge the FIFO manually.
+		 */
+		if (dma->rx_running) {
+			dmaengine_pause(dma->rxchan);
+			__dma_rx_do_complete(p, true);
+		}
+		return -ETIMEDOUT;
+
+	default:
+		break;
+	}
+
+	if (dma->rx_running)
+		return 0;
+
+	desc = dmaengine_prep_slave_single(dma->rxchan, dma->rx_addr,
+					   dma->rx_size, DMA_DEV_TO_MEM,
+					   DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	if (!desc)
+		return -EBUSY;
+
+	dma->rx_running = 1;
+	desc->callback = __dma_rx_complete;
+	desc->callback_param = p;
+
+	dma->rx_cookie = dmaengine_submit(desc);
+
+	dma_sync_single_for_device(dma->rxchan->device->dev, dma->rx_addr,
+				   dma->rx_size, DMA_FROM_DEVICE);
+
+	dma_async_issue_pending(dma->rxchan);
+	return 0;
+}
+
+static int omap_8250_tx_dma(struct uart_8250_port *p);
+
+static void omap_8250_dma_tx_complete(void *param)
+{
+	struct uart_8250_port	*p = param;
+	struct uart_8250_dma	*dma = p->dma;
+	struct circ_buf		*xmit = &p->port.state->xmit;
+	unsigned long		flags;
+	bool			en_thri = false;
+	struct omap8250_priv	*priv = p->port.private_data;
+
+	dma_sync_single_for_cpu(dma->txchan->device->dev, dma->tx_addr,
+				UART_XMIT_SIZE, DMA_TO_DEVICE);
+
+	spin_lock_irqsave(&p->port.lock, flags);
+
+	dma->tx_running = 0;
+
+	xmit->tail += dma->tx_size;
+	xmit->tail &= UART_XMIT_SIZE - 1;
+	p->port.icount.tx += dma->tx_size;
+
+	if (priv->delayed_restore) {
+		priv->delayed_restore = 0;
+		omap8250_restore_regs(p);
+	}
+
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+		uart_write_wakeup(&p->port);
+
+	if (!uart_circ_empty(xmit) && !uart_tx_stopped(&p->port)) {
+		int ret;
+
+		ret = omap_8250_tx_dma(p);
+		if (ret)
+			en_thri = true;
+
+	} else if (p->capabilities & UART_CAP_RPM) {
+		en_thri = true;
+	}
+
+	if (en_thri) {
+		dma->tx_err = 1;
+		p->ier |= UART_IER_THRI;
+		serial_port_out(&p->port, UART_IER, p->ier);
+	}
+
+	spin_unlock_irqrestore(&p->port.lock, flags);
+}
+
+static int omap_8250_tx_dma(struct uart_8250_port *p)
+{
+	struct uart_8250_dma		*dma = p->dma;
+	struct omap8250_priv		*priv = p->port.private_data;
+	struct circ_buf			*xmit = &p->port.state->xmit;
+	struct dma_async_tx_descriptor	*desc;
+	unsigned int	skip_byte = 0;
+	int ret;
+
+	if (dma->tx_running)
+		return 0;
+	if (uart_tx_stopped(&p->port) || uart_circ_empty(xmit)) {
+
+		/*
+		 * Even if no data, we need to return an error for the two cases
+		 * below so serial8250_tx_chars() is invoked and properly clears
+		 * THRI and/or runtime suspend.
+		 */
+		if (dma->tx_err || p->capabilities & UART_CAP_RPM) {
+			ret = -EBUSY;
+			goto err;
+		}
+		if (p->ier & UART_IER_THRI) {
+			p->ier &= ~UART_IER_THRI;
+			serial_out(p, UART_IER, p->ier);
+		}
+		return 0;
+	}
+
+	dma->tx_size = CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE);
+	if (priv->habit & OMAP_DMA_TX_KICK) {
+		u8 tx_lvl;
+
+		/*
+		 * We need to put the first byte into the FIFO in order to start
+		 * the DMA transfer. For transfers smaller than four bytes we
+		 * don't bother doing DMA at all. It seem not matter if there
+		 * are still bytes in the FIFO from the last transfer (in case
+		 * we got here directly from omap_8250_dma_tx_complete()). Bytes
+		 * leaving the FIFO seem not to trigger the DMA transfer. It is
+		 * really the byte that we put into the FIFO.
+		 * If the FIFO is already full then we most likely got here from
+		 * omap_8250_dma_tx_complete(). And this means the DMA engine
+		 * just completed its work. We don't have to wait the complete
+		 * 86us at 115200,8n1 but around 60us (not to mention lower
+		 * baudrates). So in that case we take the interrupt and try
+		 * again with an empty FIFO.
+		 */
+		tx_lvl = serial_in(p, UART_OMAP_TX_LVL);
+		if (tx_lvl == p->tx_loadsz) {
+			ret = -EBUSY;
+			goto err;
+		}
+		if (dma->tx_size < 4) {
+			ret = -EINVAL;
+			goto err;
+		}
+		skip_byte = 1;
+	}
+
+	desc = dmaengine_prep_slave_single(dma->txchan,
+			dma->tx_addr + xmit->tail + skip_byte,
+			dma->tx_size - skip_byte, DMA_MEM_TO_DEV,
+			DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
+	if (!desc) {
+		ret = -EBUSY;
+		goto err;
+	}
+
+	dma->tx_running = 1;
+
+	desc->callback = omap_8250_dma_tx_complete;
+	desc->callback_param = p;
+
+	dma->tx_cookie = dmaengine_submit(desc);
+
+	dma_sync_single_for_device(dma->txchan->device->dev, dma->tx_addr,
+				   UART_XMIT_SIZE, DMA_TO_DEVICE);
+
+	dma_async_issue_pending(dma->txchan);
+	if (dma->tx_err)
+		dma->tx_err = 0;
+
+	if (p->ier & UART_IER_THRI) {
+		p->ier &= ~UART_IER_THRI;
+		serial_out(p, UART_IER, p->ier);
+	}
+	if (skip_byte)
+		serial_out(p, UART_TX, xmit->buf[xmit->tail]);
+	return 0;
+err:
+	dma->tx_err = 1;
+	return ret;
+}
+
+/*
+ * This is mostly serial8250_handle_irq(). We have a slightly different DMA
+ * hoook for RX/TX and need different logic for them in the ISR. Therefore we
+ * use the default routine in the non-DMA case and this one for with DMA.
+ */
+static int omap_8250_dma_handle_irq(struct uart_port *port)
+{
+	struct uart_8250_port *up = up_to_u8250p(port);
+	unsigned char status;
+	unsigned long flags;
+	u8 iir;
+	int dma_err = 0;
+
+	serial8250_rpm_get(up);
+
+	iir = serial_port_in(port, UART_IIR);
+	if (iir & UART_IIR_NO_INT) {
+		serial8250_rpm_put(up);
+		return 0;
+	}
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	status = serial_port_in(port, UART_LSR);
+
+	if (status & (UART_LSR_DR | UART_LSR_BI)) {
+
+		dma_err = omap_8250_rx_dma(up, iir);
+		if (dma_err) {
+			status = serial8250_rx_chars(up, status);
+			omap_8250_rx_dma(up, 0);
+		}
+	}
+	serial8250_modem_status(up);
+	if (status & UART_LSR_THRE && up->dma->tx_err) {
+		if (uart_tx_stopped(&up->port) ||
+		    uart_circ_empty(&up->port.state->xmit)) {
+			up->dma->tx_err = 0;
+			serial8250_tx_chars(up);
+		} else  {
+			/*
+			 * try again due to an earlier failer which
+			 * might have been resolved by now.
+			 */
+			dma_err = omap_8250_tx_dma(up);
+			if (dma_err)
+				serial8250_tx_chars(up);
+		}
+	}
+
+	spin_unlock_irqrestore(&port->lock, flags);
+	serial8250_rpm_put(up);
+	return 1;
+}
+
+static bool the_no_dma_filter_fn(struct dma_chan *chan, void *param)
+{
+	return false;
+}
+
+#else
+
+static inline int omap_8250_rx_dma(struct uart_8250_port *p, unsigned int iir)
+{
+	return -EINVAL;
+}
+#endif
+
+static int omap8250_no_handle_irq(struct uart_port *port)
+{
+	/* IRQ has not been requested but handling irq? */
+	WARN_ONCE(1, "Unexpected irq handling before port startup\n");
+	return 0;
+}
+
+static int omap8250_probe(struct platform_device *pdev)
+{
+	struct resource *regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	struct resource *irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	struct omap8250_priv *priv;
+	struct uart_8250_port up;
+	int ret;
+	void __iomem *membase;
+
+	if (!regs || !irq) {
+		dev_err(&pdev->dev, "missing registers or irq\n");
+		return -EINVAL;
+	}
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	membase = devm_ioremap_nocache(&pdev->dev, regs->start,
+				       resource_size(regs));
+	if (!membase)
+		return -ENODEV;
+
+	memset(&up, 0, sizeof(up));
+	up.port.dev = &pdev->dev;
+	up.port.mapbase = regs->start;
+	up.port.membase = membase;
+	up.port.irq = irq->start;
+	/*
+	 * It claims to be 16C750 compatible however it is a little different.
+	 * It has EFR and has no FCR7_64byte bit. The AFE (which it claims to
+	 * have) is enabled via EFR instead of MCR. The type is set here 8250
+	 * just to get things going. UNKNOWN does not work for a few reasons and
+	 * we don't need our own type since we don't use 8250's set_termios()
+	 * or pm callback.
+	 */
+	up.port.type = PORT_8250;
+	up.port.iotype = UPIO_MEM;
+	up.port.flags = UPF_FIXED_PORT | UPF_FIXED_TYPE | UPF_SOFT_FLOW |
+		UPF_HARD_FLOW;
+	up.port.private_data = priv;
+
+	up.port.regshift = 2;
+	up.port.fifosize = 64;
+	up.tx_loadsz = 64;
+	up.capabilities = UART_CAP_FIFO;
+#ifdef CONFIG_PM
+	/*
+	 * Runtime PM is mostly transparent. However to do it right we need to a
+	 * TX empty interrupt before we can put the device to auto idle. So if
+	 * PM is not enabled we don't add that flag and can spare that one extra
+	 * interrupt in the TX path.
+	 */
+	up.capabilities |= UART_CAP_RPM;
+#endif
+	up.port.set_termios = omap_8250_set_termios;
+	up.port.set_mctrl = omap8250_set_mctrl;
+	up.port.pm = omap_8250_pm;
+	up.port.startup = omap_8250_startup;
+	up.port.shutdown = omap_8250_shutdown;
+	up.port.throttle = omap_8250_throttle;
+	up.port.unthrottle = omap_8250_unthrottle;
+
+	if (pdev->dev.of_node) {
+		ret = of_alias_get_id(pdev->dev.of_node, "serial");
+
+		of_property_read_u32(pdev->dev.of_node, "clock-frequency",
+				     &up.port.uartclk);
+		priv->wakeirq = irq_of_parse_and_map(pdev->dev.of_node, 1);
+	} else {
+		ret = pdev->id;
+	}
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to get alias/pdev id\n");
+		return ret;
+	}
+	up.port.line = ret;
+
+	if (!up.port.uartclk) {
+		up.port.uartclk = DEFAULT_CLK_SPEED;
+		dev_warn(&pdev->dev,
+			 "No clock speed specified: using default: %d\n",
+			 DEFAULT_CLK_SPEED);
+	}
+
+	priv->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
+	priv->calc_latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
+	pm_qos_add_request(&priv->pm_qos_request, PM_QOS_CPU_DMA_LATENCY,
+			   priv->latency);
+	INIT_WORK(&priv->qos_work, omap8250_uart_qos_work);
+
+	device_init_wakeup(&pdev->dev, true);
+	pm_runtime_use_autosuspend(&pdev->dev);
+	pm_runtime_set_autosuspend_delay(&pdev->dev, -1);
+
+	pm_runtime_irq_safe(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+
+	pm_runtime_get_sync(&pdev->dev);
+
+	omap_serial_fill_features_erratas(&up, priv);
+	up.port.handle_irq = omap8250_no_handle_irq;
+#ifdef CONFIG_SERIAL_8250_DMA
+	if (pdev->dev.of_node) {
+		/*
+		 * Oh DMA support. If there are no DMA properties in the DT then
+		 * we will fall back to a generic DMA channel which does not
+		 * really work here. To ensure that we do not get a generic DMA
+		 * channel assigned, we have the the_no_dma_filter_fn() here.
+		 * To avoid "failed to request DMA" messages we check for DMA
+		 * properties in DT.
+		 */
+		ret = of_property_count_strings(pdev->dev.of_node, "dma-names");
+		if (ret == 2) {
+			up.dma = &priv->omap8250_dma;
+			priv->omap8250_dma.fn = the_no_dma_filter_fn;
+			priv->omap8250_dma.tx_dma = omap_8250_tx_dma;
+			priv->omap8250_dma.rx_dma = omap_8250_rx_dma;
+			priv->omap8250_dma.rx_size = RX_TRIGGER;
+			priv->omap8250_dma.rxconf.src_maxburst = RX_TRIGGER;
+			priv->omap8250_dma.txconf.dst_maxburst = TX_TRIGGER;
+
+			if (of_machine_is_compatible("ti,am33xx"))
+				priv->habit |= OMAP_DMA_TX_KICK;
+		}
+	}
+#endif
+	ret = serial8250_register_8250_port(&up);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "unable to register 8250 port\n");
+		goto err;
+	}
+	priv->line = ret;
+	platform_set_drvdata(pdev, priv);
+	pm_runtime_mark_last_busy(&pdev->dev);
+	pm_runtime_put_autosuspend(&pdev->dev);
+	return 0;
+err:
+	pm_runtime_put(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	return ret;
+}
+
+static int omap8250_remove(struct platform_device *pdev)
+{
+	struct omap8250_priv *priv = platform_get_drvdata(pdev);
+
+	pm_runtime_put_sync(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	serial8250_unregister_port(priv->line);
+	pm_qos_remove_request(&priv->pm_qos_request);
+	device_init_wakeup(&pdev->dev, false);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+
+static inline void omap8250_enable_wakeirq(struct omap8250_priv *priv,
+					   bool enable)
+{
+	if (!priv->wakeirq)
+		return;
+
+	if (enable)
+		enable_irq(priv->wakeirq);
+	else
+		disable_irq_nosync(priv->wakeirq);
+}
+
+static void omap8250_enable_wakeup(struct omap8250_priv *priv,
+				   bool enable)
+{
+	if (enable == priv->wakeups_enabled)
+		return;
+
+	omap8250_enable_wakeirq(priv, enable);
+	priv->wakeups_enabled = enable;
+}
+#endif
+
+#ifdef CONFIG_PM_SLEEP
+static int omap8250_prepare(struct device *dev)
+{
+	struct omap8250_priv *priv = dev_get_drvdata(dev);
+
+	if (!priv)
+		return 0;
+	priv->is_suspending = true;
+	return 0;
+}
+
+static void omap8250_complete(struct device *dev)
+{
+	struct omap8250_priv *priv = dev_get_drvdata(dev);
+
+	if (!priv)
+		return;
+	priv->is_suspending = false;
+}
+
+static int omap8250_suspend(struct device *dev)
+{
+	struct omap8250_priv *priv = dev_get_drvdata(dev);
+
+	serial8250_suspend_port(priv->line);
+	flush_work(&priv->qos_work);
+
+	if (device_may_wakeup(dev))
+		omap8250_enable_wakeup(priv, true);
+	else
+		omap8250_enable_wakeup(priv, false);
+	return 0;
+}
+
+static int omap8250_resume(struct device *dev)
+{
+	struct omap8250_priv *priv = dev_get_drvdata(dev);
+
+	if (device_may_wakeup(dev))
+		omap8250_enable_wakeup(priv, false);
+
+	serial8250_resume_port(priv->line);
+	return 0;
+}
+#else
+#define omap8250_prepare NULL
+#define omap8250_complete NULL
+#endif
+
+#ifdef CONFIG_PM
+static int omap8250_lost_context(struct uart_8250_port *up)
+{
+	u32 val;
+
+	val = serial_in(up, UART_OMAP_MDR1);
+	/*
+	 * If we lose context, then MDR1 is set to its reset value which is
+	 * UART_OMAP_MDR1_DISABLE. After set_termios() we set it either to 13x
+	 * or 16x but never to disable again.
+	 */
+	if (val == UART_OMAP_MDR1_DISABLE)
+		return 1;
+	return 0;
+}
+
+static int omap8250_runtime_suspend(struct device *dev)
+{
+	struct omap8250_priv *priv = dev_get_drvdata(dev);
+	struct uart_8250_port *up;
+
+	up = serial8250_get_port(priv->line);
+	/*
+	 * When using 'no_console_suspend', the console UART must not be
+	 * suspended. Since driver suspend is managed by runtime suspend,
+	 * preventing runtime suspend (by returning error) will keep device
+	 * active during suspend.
+	 */
+	if (priv->is_suspending && !console_suspend_enabled) {
+		if (uart_console(&up->port))
+			return -EBUSY;
+	}
+
+	omap8250_enable_wakeup(priv, true);
+	if (up->dma)
+		omap_8250_rx_dma(up, UART_IIR_RX_TIMEOUT);
+
+	priv->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
+	schedule_work(&priv->qos_work);
+
+	return 0;
+}
+
+static int omap8250_runtime_resume(struct device *dev)
+{
+	struct omap8250_priv *priv = dev_get_drvdata(dev);
+	struct uart_8250_port *up;
+	int loss_cntx;
+
+	/* In case runtime-pm tries this before we are setup */
+	if (!priv)
+		return 0;
+
+	up = serial8250_get_port(priv->line);
+	omap8250_enable_wakeup(priv, false);
+	loss_cntx = omap8250_lost_context(up);
+
+	if (loss_cntx)
+		omap8250_restore_regs(up);
+
+	if (up->dma)
+		omap_8250_rx_dma(up, 0);
+
+	priv->latency = priv->calc_latency;
+	schedule_work(&priv->qos_work);
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_SERIAL_8250_OMAP_TTYO_FIXUP
+static int __init omap8250_console_fixup(void)
+{
+	char *omap_str;
+	char *options;
+	u8 idx;
+
+	if (strstr(boot_command_line, "console=ttyS"))
+		/* user set a ttyS based name for the console */
+		return 0;
+
+	omap_str = strstr(boot_command_line, "console=ttyO");
+	if (!omap_str)
+		/* user did not set ttyO based console, so we don't care */
+		return 0;
+
+	omap_str += 12;
+	if ('0' <= *omap_str && *omap_str <= '9')
+		idx = *omap_str - '0';
+	else
+		return 0;
+
+	omap_str++;
+	if (omap_str[0] == ',') {
+		omap_str++;
+		options = omap_str;
+	} else {
+		options = NULL;
+	}
+
+	add_preferred_console("ttyS", idx, options);
+	pr_err("WARNING: Your 'console=ttyO%d' has been replaced by 'ttyS%d'\n",
+	       idx, idx);
+	pr_err("This ensures that you still see kernel messages. Please\n");
+	pr_err("update your kernel commandline.\n");
+	return 0;
+}
+console_initcall(omap8250_console_fixup);
+#endif
+
+static const struct dev_pm_ops omap8250_dev_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(omap8250_suspend, omap8250_resume)
+	SET_RUNTIME_PM_OPS(omap8250_runtime_suspend,
+			   omap8250_runtime_resume, NULL)
+	.prepare        = omap8250_prepare,
+	.complete       = omap8250_complete,
+};
+
+static const struct of_device_id omap8250_dt_ids[] = {
+	{ .compatible = "ti,omap2-uart" },
+	{ .compatible = "ti,omap3-uart" },
+	{ .compatible = "ti,omap4-uart" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, omap8250_dt_ids);
+
+static struct platform_driver omap8250_platform_driver = {
+	.driver = {
+		.name		= "omap8250",
+		.pm		= &omap8250_dev_pm_ops,
+		.of_match_table = omap8250_dt_ids,
+	},
+	.probe			= omap8250_probe,
+	.remove			= omap8250_remove,
+};
+module_platform_driver(omap8250_platform_driver);
+
+MODULE_AUTHOR("Sebastian Andrzej Siewior");
+MODULE_DESCRIPTION("OMAP 8250 Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
new file mode 100644
index 000000000..46bcebba5
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -0,0 +1,5724 @@
+/*
+ *  Probe module for 8250/16550-type PCI serial ports.
+ *
+ *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
+ *
+ *  Copyright (C) 2001 Russell King, All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ */
+#undef DEBUG
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/tty.h>
+#include <linux/serial_reg.h>
+#include <linux/serial_core.h>
+#include <linux/8250_pci.h>
+#include <linux/bitops.h>
+#include <linux/rational.h>
+
+#include <asm/byteorder.h>
+#include <asm/io.h>
+
+#include <linux/dmaengine.h>
+#include <linux/platform_data/dma-dw.h>
+#include <linux/platform_data/dma-hsu.h>
+
+#include "8250.h"
+
+/*
+ * init function returns:
+ *  > 0 - number of ports
+ *  = 0 - use board->num_ports
+ *  < 0 - error
+ */
+struct pci_serial_quirk {
+	u32	vendor;
+	u32	device;
+	u32	subvendor;
+	u32	subdevice;
+	int	(*probe)(struct pci_dev *dev);
+	int	(*init)(struct pci_dev *dev);
+	int	(*setup)(struct serial_private *,
+			 const struct pciserial_board *,
+			 struct uart_8250_port *, int);
+	void	(*exit)(struct pci_dev *dev);
+};
+
+#define PCI_NUM_BAR_RESOURCES	6
+
+struct serial_private {
+	struct pci_dev		*dev;
+	unsigned int		nr;
+	void __iomem		*remapped_bar[PCI_NUM_BAR_RESOURCES];
+	struct pci_serial_quirk	*quirk;
+	int			line[0];
+};
+
+static int pci_default_setup(struct serial_private*,
+	  const struct pciserial_board*, struct uart_8250_port *, int);
+
+static void moan_device(const char *str, struct pci_dev *dev)
+{
+	dev_err(&dev->dev,
+	       "%s: %s\n"
+	       "Please send the output of lspci -vv, this\n"
+	       "message (0x%04x,0x%04x,0x%04x,0x%04x), the\n"
+	       "manufacturer and name of serial board or\n"
+	       "modem board to <linux-serial@vger.kernel.org>.\n",
+	       pci_name(dev), str, dev->vendor, dev->device,
+	       dev->subsystem_vendor, dev->subsystem_device);
+}
+
+static int
+setup_port(struct serial_private *priv, struct uart_8250_port *port,
+	   int bar, int offset, int regshift)
+{
+	struct pci_dev *dev = priv->dev;
+
+	if (bar >= PCI_NUM_BAR_RESOURCES)
+		return -EINVAL;
+
+	if (pci_resource_flags(dev, bar) & IORESOURCE_MEM) {
+		if (!priv->remapped_bar[bar])
+			priv->remapped_bar[bar] = pci_ioremap_bar(dev, bar);
+		if (!priv->remapped_bar[bar])
+			return -ENOMEM;
+
+		port->port.iotype = UPIO_MEM;
+		port->port.iobase = 0;
+		port->port.mapbase = pci_resource_start(dev, bar) + offset;
+		port->port.membase = priv->remapped_bar[bar] + offset;
+		port->port.regshift = regshift;
+	} else {
+		port->port.iotype = UPIO_PORT;
+		port->port.iobase = pci_resource_start(dev, bar) + offset;
+		port->port.mapbase = 0;
+		port->port.membase = NULL;
+		port->port.regshift = 0;
+	}
+	return 0;
+}
+
+/*
+ * ADDI-DATA GmbH communication cards <info@addi-data.com>
+ */
+static int addidata_apci7800_setup(struct serial_private *priv,
+				const struct pciserial_board *board,
+				struct uart_8250_port *port, int idx)
+{
+	unsigned int bar = 0, offset = board->first_offset;
+	bar = FL_GET_BASE(board->flags);
+
+	if (idx < 2) {
+		offset += idx * board->uart_offset;
+	} else if ((idx >= 2) && (idx < 4)) {
+		bar += 1;
+		offset += ((idx - 2) * board->uart_offset);
+	} else if ((idx >= 4) && (idx < 6)) {
+		bar += 2;
+		offset += ((idx - 4) * board->uart_offset);
+	} else if (idx >= 6) {
+		bar += 3;
+		offset += ((idx - 6) * board->uart_offset);
+	}
+
+	return setup_port(priv, port, bar, offset, board->reg_shift);
+}
+
+/*
+ * AFAVLAB uses a different mixture of BARs and offsets
+ * Not that ugly ;) -- HW
+ */
+static int
+afavlab_setup(struct serial_private *priv, const struct pciserial_board *board,
+	      struct uart_8250_port *port, int idx)
+{
+	unsigned int bar, offset = board->first_offset;
+
+	bar = FL_GET_BASE(board->flags);
+	if (idx < 4)
+		bar += idx;
+	else {
+		bar = 4;
+		offset += (idx - 4) * board->uart_offset;
+	}
+
+	return setup_port(priv, port, bar, offset, board->reg_shift);
+}
+
+/*
+ * HP's Remote Management Console.  The Diva chip came in several
+ * different versions.  N-class, L2000 and A500 have two Diva chips, each
+ * with 3 UARTs (the third UART on the second chip is unused).  Superdome
+ * and Keystone have one Diva chip with 3 UARTs.  Some later machines have
+ * one Diva chip, but it has been expanded to 5 UARTs.
+ */
+static int pci_hp_diva_init(struct pci_dev *dev)
+{
+	int rc = 0;
+
+	switch (dev->subsystem_device) {
+	case PCI_DEVICE_ID_HP_DIVA_TOSCA1:
+	case PCI_DEVICE_ID_HP_DIVA_HALFDOME:
+	case PCI_DEVICE_ID_HP_DIVA_KEYSTONE:
+	case PCI_DEVICE_ID_HP_DIVA_EVEREST:
+		rc = 3;
+		break;
+	case PCI_DEVICE_ID_HP_DIVA_TOSCA2:
+		rc = 2;
+		break;
+	case PCI_DEVICE_ID_HP_DIVA_MAESTRO:
+		rc = 4;
+		break;
+	case PCI_DEVICE_ID_HP_DIVA_POWERBAR:
+	case PCI_DEVICE_ID_HP_DIVA_HURRICANE:
+		rc = 1;
+		break;
+	}
+
+	return rc;
+}
+
+/*
+ * HP's Diva chip puts the 4th/5th serial port further out, and
+ * some serial ports are supposed to be hidden on certain models.
+ */
+static int
+pci_hp_diva_setup(struct serial_private *priv,
+		const struct pciserial_board *board,
+		struct uart_8250_port *port, int idx)
+{
+	unsigned int offset = board->first_offset;
+	unsigned int bar = FL_GET_BASE(board->flags);
+
+	switch (priv->dev->subsystem_device) {
+	case PCI_DEVICE_ID_HP_DIVA_MAESTRO:
+		if (idx == 3)
+			idx++;
+		break;
+	case PCI_DEVICE_ID_HP_DIVA_EVEREST:
+		if (idx > 0)
+			idx++;
+		if (idx > 2)
+			idx++;
+		break;
+	}
+	if (idx > 2)
+		offset = 0x18;
+
+	offset += idx * board->uart_offset;
+
+	return setup_port(priv, port, bar, offset, board->reg_shift);
+}
+
+/*
+ * Added for EKF Intel i960 serial boards
+ */
+static int pci_inteli960ni_init(struct pci_dev *dev)
+{
+	u32 oldval;
+
+	if (!(dev->subsystem_device & 0x1000))
+		return -ENODEV;
+
+	/* is firmware started? */
+	pci_read_config_dword(dev, 0x44, &oldval);
+	if (oldval == 0x00001000L) { /* RESET value */
+		dev_dbg(&dev->dev, "Local i960 firmware missing\n");
+		return -ENODEV;
+	}
+	return 0;
+}
+
+/*
+ * Some PCI serial cards using the PLX 9050 PCI interface chip require
+ * that the card interrupt be explicitly enabled or disabled.  This
+ * seems to be mainly needed on card using the PLX which also use I/O
+ * mapped memory.
+ */
+static int pci_plx9050_init(struct pci_dev *dev)
+{
+	u8 irq_config;
+	void __iomem *p;
+
+	if ((pci_resource_flags(dev, 0) & IORESOURCE_MEM) == 0) {
+		moan_device("no memory in bar 0", dev);
+		return 0;
+	}
+
+	irq_config = 0x41;
+	if (dev->vendor == PCI_VENDOR_ID_PANACOM ||
+	    dev->subsystem_vendor == PCI_SUBVENDOR_ID_EXSYS)
+		irq_config = 0x43;
+
+	if ((dev->vendor == PCI_VENDOR_ID_PLX) &&
+	    (dev->device == PCI_DEVICE_ID_PLX_ROMULUS))
+		/*
+		 * As the megawolf cards have the int pins active
+		 * high, and have 2 UART chips, both ints must be
+		 * enabled on the 9050. Also, the UARTS are set in
+		 * 16450 mode by default, so we have to enable the
+		 * 16C950 'enhanced' mode so that we can use the
+		 * deep FIFOs
+		 */
+		irq_config = 0x5b;
+	/*
+	 * enable/disable interrupts
+	 */
+	p = ioremap_nocache(pci_resource_start(dev, 0), 0x80);
+	if (p == NULL)
+		return -ENOMEM;
+	writel(irq_config, p + 0x4c);
+
+	/*
+	 * Read the register back to ensure that it took effect.
+	 */
+	readl(p + 0x4c);
+	iounmap(p);
+
+	return 0;
+}
+
+static void pci_plx9050_exit(struct pci_dev *dev)
+{
+	u8 __iomem *p;
+
+	if ((pci_resource_flags(dev, 0) & IORESOURCE_MEM) == 0)
+		return;
+
+	/*
+	 * disable interrupts
+	 */
+	p = ioremap_nocache(pci_resource_start(dev, 0), 0x80);
+	if (p != NULL) {
+		writel(0, p + 0x4c);
+
+		/*
+		 * Read the register back to ensure that it took effect.
+		 */
+		readl(p + 0x4c);
+		iounmap(p);
+	}
+}
+
+#define NI8420_INT_ENABLE_REG	0x38
+#define NI8420_INT_ENABLE_BIT	0x2000
+
+static void pci_ni8420_exit(struct pci_dev *dev)
+{
+	void __iomem *p;
+	unsigned int bar = 0;
+
+	if ((pci_resource_flags(dev, bar) & IORESOURCE_MEM) == 0) {
+		moan_device("no memory in bar", dev);
+		return;
+	}
+
+	p = pci_ioremap_bar(dev, bar);
+	if (p == NULL)
+		return;
+
+	/* Disable the CPU Interrupt */
+	writel(readl(p + NI8420_INT_ENABLE_REG) & ~(NI8420_INT_ENABLE_BIT),
+	       p + NI8420_INT_ENABLE_REG);
+	iounmap(p);
+}
+
+
+/* MITE registers */
+#define MITE_IOWBSR1	0xc4
+#define MITE_IOWCR1	0xf4
+#define MITE_LCIMR1	0x08
+#define MITE_LCIMR2	0x10
+
+#define MITE_LCIMR2_CLR_CPU_IE	(1 << 30)
+
+static void pci_ni8430_exit(struct pci_dev *dev)
+{
+	void __iomem *p;
+	unsigned int bar = 0;
+
+	if ((pci_resource_flags(dev, bar) & IORESOURCE_MEM) == 0) {
+		moan_device("no memory in bar", dev);
+		return;
+	}
+
+	p = pci_ioremap_bar(dev, bar);
+	if (p == NULL)
+		return;
+
+	/* Disable the CPU Interrupt */
+	writel(MITE_LCIMR2_CLR_CPU_IE, p + MITE_LCIMR2);
+	iounmap(p);
+}
+
+/* SBS Technologies Inc. PMC-OCTPRO and P-OCTAL cards */
+static int
+sbs_setup(struct serial_private *priv, const struct pciserial_board *board,
+		struct uart_8250_port *port, int idx)
+{
+	unsigned int bar, offset = board->first_offset;
+
+	bar = 0;
+
+	if (idx < 4) {
+		/* first four channels map to 0, 0x100, 0x200, 0x300 */
+		offset += idx * board->uart_offset;
+	} else if (idx < 8) {
+		/* last four channels map to 0x1000, 0x1100, 0x1200, 0x1300 */
+		offset += idx * board->uart_offset + 0xC00;
+	} else /* we have only 8 ports on PMC-OCTALPRO */
+		return 1;
+
+	return setup_port(priv, port, bar, offset, board->reg_shift);
+}
+
+/*
+* This does initialization for PMC OCTALPRO cards:
+* maps the device memory, resets the UARTs (needed, bc
+* if the module is removed and inserted again, the card
+* is in the sleep mode) and enables global interrupt.
+*/
+
+/* global control register offset for SBS PMC-OctalPro */
+#define OCT_REG_CR_OFF		0x500
+
+static int sbs_init(struct pci_dev *dev)
+{
+	u8 __iomem *p;
+
+	p = pci_ioremap_bar(dev, 0);
+
+	if (p == NULL)
+		return -ENOMEM;
+	/* Set bit-4 Control Register (UART RESET) in to reset the uarts */
+	writeb(0x10, p + OCT_REG_CR_OFF);
+	udelay(50);
+	writeb(0x0, p + OCT_REG_CR_OFF);
+
+	/* Set bit-2 (INTENABLE) of Control Register */
+	writeb(0x4, p + OCT_REG_CR_OFF);
+	iounmap(p);
+
+	return 0;
+}
+
+/*
+ * Disables the global interrupt of PMC-OctalPro
+ */
+
+static void sbs_exit(struct pci_dev *dev)
+{
+	u8 __iomem *p;
+
+	p = pci_ioremap_bar(dev, 0);
+	/* FIXME: What if resource_len < OCT_REG_CR_OFF */
+	if (p != NULL)
+		writeb(0, p + OCT_REG_CR_OFF);
+	iounmap(p);
+}
+
+/*
+ * SIIG serial cards have an PCI interface chip which also controls
+ * the UART clocking frequency. Each UART can be clocked independently
+ * (except cards equipped with 4 UARTs) and initial clocking settings
+ * are stored in the EEPROM chip. It can cause problems because this
+ * version of serial driver doesn't support differently clocked UART's
+ * on single PCI card. To prevent this, initialization functions set
+ * high frequency clocking for all UART's on given card. It is safe (I
+ * hope) because it doesn't touch EEPROM settings to prevent conflicts
+ * with other OSes (like M$ DOS).
+ *
+ *  SIIG support added by Andrey Panin <pazke@donpac.ru>, 10/1999
+ *
+ * There is two family of SIIG serial cards with different PCI
+ * interface chip and different configuration methods:
+ *     - 10x cards have control registers in IO and/or memory space;
+ *     - 20x cards have control registers in standard PCI configuration space.
+ *
+ * Note: all 10x cards have PCI device ids 0x10..
+ *       all 20x cards have PCI device ids 0x20..
+ *
+ * There are also Quartet Serial cards which use Oxford Semiconductor
+ * 16954 quad UART PCI chip clocked by 18.432 MHz quartz.
+ *
+ * Note: some SIIG cards are probed by the parport_serial object.
+ */
+
+#define PCI_DEVICE_ID_SIIG_1S_10x (PCI_DEVICE_ID_SIIG_1S_10x_550 & 0xfffc)
+#define PCI_DEVICE_ID_SIIG_2S_10x (PCI_DEVICE_ID_SIIG_2S_10x_550 & 0xfff8)
+
+static int pci_siig10x_init(struct pci_dev *dev)
+{
+	u16 data;
+	void __iomem *p;
+
+	switch (dev->device & 0xfff8) {
+	case PCI_DEVICE_ID_SIIG_1S_10x:	/* 1S */
+		data = 0xffdf;
+		break;
+	case PCI_DEVICE_ID_SIIG_2S_10x:	/* 2S, 2S1P */
+		data = 0xf7ff;
+		break;
+	default:			/* 1S1P, 4S */
+		data = 0xfffb;
+		break;
+	}
+
+	p = ioremap_nocache(pci_resource_start(dev, 0), 0x80);
+	if (p == NULL)
+		return -ENOMEM;
+
+	writew(readw(p + 0x28) & data, p + 0x28);
+	readw(p + 0x28);
+	iounmap(p);
+	return 0;
+}
+
+#define PCI_DEVICE_ID_SIIG_2S_20x (PCI_DEVICE_ID_SIIG_2S_20x_550 & 0xfffc)
+#define PCI_DEVICE_ID_SIIG_2S1P_20x (PCI_DEVICE_ID_SIIG_2S1P_20x_550 & 0xfffc)
+
+static int pci_siig20x_init(struct pci_dev *dev)
+{
+	u8 data;
+
+	/* Change clock frequency for the first UART. */
+	pci_read_config_byte(dev, 0x6f, &data);
+	pci_write_config_byte(dev, 0x6f, data & 0xef);
+
+	/* If this card has 2 UART, we have to do the same with second UART. */
+	if (((dev->device & 0xfffc) == PCI_DEVICE_ID_SIIG_2S_20x) ||
+	    ((dev->device & 0xfffc) == PCI_DEVICE_ID_SIIG_2S1P_20x)) {
+		pci_read_config_byte(dev, 0x73, &data);
+		pci_write_config_byte(dev, 0x73, data & 0xef);
+	}
+	return 0;
+}
+
+static int pci_siig_init(struct pci_dev *dev)
+{
+	unsigned int type = dev->device & 0xff00;
+
+	if (type == 0x1000)
+		return pci_siig10x_init(dev);
+	else if (type == 0x2000)
+		return pci_siig20x_init(dev);
+
+	moan_device("Unknown SIIG card", dev);
+	return -ENODEV;
+}
+
+static int pci_siig_setup(struct serial_private *priv,
+			  const struct pciserial_board *board,
+			  struct uart_8250_port *port, int idx)
+{
+	unsigned int bar = FL_GET_BASE(board->flags) + idx, offset = 0;
+
+	if (idx > 3) {
+		bar = 4;
+		offset = (idx - 4) * 8;
+	}
+
+	return setup_port(priv, port, bar, offset, 0);
+}
+
+/*
+ * Timedia has an explosion of boards, and to avoid the PCI table from
+ * growing *huge*, we use this function to collapse some 70 entries
+ * in the PCI table into one, for sanity's and compactness's sake.
+ */
+static const unsigned short timedia_single_port[] = {
+	0x4025, 0x4027, 0x4028, 0x5025, 0x5027, 0
+};
+
+static const unsigned short timedia_dual_port[] = {
+	0x0002, 0x4036, 0x4037, 0x4038, 0x4078, 0x4079, 0x4085,
+	0x4088, 0x4089, 0x5037, 0x5078, 0x5079, 0x5085, 0x6079,
+	0x7079, 0x8079, 0x8137, 0x8138, 0x8237, 0x8238, 0x9079,
+	0x9137, 0x9138, 0x9237, 0x9238, 0xA079, 0xB079, 0xC079,
+	0xD079, 0
+};
+
+static const unsigned short timedia_quad_port[] = {
+	0x4055, 0x4056, 0x4095, 0x4096, 0x5056, 0x8156, 0x8157,
+	0x8256, 0x8257, 0x9056, 0x9156, 0x9157, 0x9158, 0x9159,
+	0x9256, 0x9257, 0xA056, 0xA157, 0xA158, 0xA159, 0xB056,
+	0xB157, 0
+};
+
+static const unsigned short timedia_eight_port[] = {
+	0x4065, 0x4066, 0x5065, 0x5066, 0x8166, 0x9066, 0x9166,
+	0x9167, 0x9168, 0xA066, 0xA167, 0xA168, 0
+};
+
+static const struct timedia_struct {
+	int num;
+	const unsigned short *ids;
+} timedia_data[] = {
+	{ 1, timedia_single_port },
+	{ 2, timedia_dual_port },
+	{ 4, timedia_quad_port },
+	{ 8, timedia_eight_port }
+};
+
+/*
+ * There are nearly 70 different Timedia/SUNIX PCI serial devices.  Instead of
+ * listing them individually, this driver merely grabs them all with
+ * PCI_ANY_ID.  Some of these devices, however, also feature a parallel port,
+ * and should be left free to be claimed by parport_serial instead.
+ */
+static int pci_timedia_probe(struct pci_dev *dev)
+{
+	/*
+	 * Check the third digit of the subdevice ID
+	 * (0,2,3,5,6: serial only -- 7,8,9: serial + parallel)
+	 */
+	if ((dev->subsystem_device & 0x00f0) >= 0x70) {
+		dev_info(&dev->dev,
+			"ignoring Timedia subdevice %04x for parport_serial\n",
+			dev->subsystem_device);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static int pci_timedia_init(struct pci_dev *dev)
+{
+	const unsigned short *ids;
+	int i, j;
+
+	for (i = 0; i < ARRAY_SIZE(timedia_data); i++) {
+		ids = timedia_data[i].ids;
+		for (j = 0; ids[j]; j++)
+			if (dev->subsystem_device == ids[j])
+				return timedia_data[i].num;
+	}
+	return 0;
+}
+
+/*
+ * Timedia/SUNIX uses a mixture of BARs and offsets
+ * Ugh, this is ugly as all hell --- TYT
+ */
+static int
+pci_timedia_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	unsigned int bar = 0, offset = board->first_offset;
+
+	switch (idx) {
+	case 0:
+		bar = 0;
+		break;
+	case 1:
+		offset = board->uart_offset;
+		bar = 0;
+		break;
+	case 2:
+		bar = 1;
+		break;
+	case 3:
+		offset = board->uart_offset;
+		/* FALLTHROUGH */
+	case 4: /* BAR 2 */
+	case 5: /* BAR 3 */
+	case 6: /* BAR 4 */
+	case 7: /* BAR 5 */
+		bar = idx - 2;
+	}
+
+	return setup_port(priv, port, bar, offset, board->reg_shift);
+}
+
+/*
+ * Some Titan cards are also a little weird
+ */
+static int
+titan_400l_800l_setup(struct serial_private *priv,
+		      const struct pciserial_board *board,
+		      struct uart_8250_port *port, int idx)
+{
+	unsigned int bar, offset = board->first_offset;
+
+	switch (idx) {
+	case 0:
+		bar = 1;
+		break;
+	case 1:
+		bar = 2;
+		break;
+	default:
+		bar = 4;
+		offset = (idx - 2) * board->uart_offset;
+	}
+
+	return setup_port(priv, port, bar, offset, board->reg_shift);
+}
+
+static int pci_xircom_init(struct pci_dev *dev)
+{
+	msleep(100);
+	return 0;
+}
+
+static int pci_ni8420_init(struct pci_dev *dev)
+{
+	void __iomem *p;
+	unsigned int bar = 0;
+
+	if ((pci_resource_flags(dev, bar) & IORESOURCE_MEM) == 0) {
+		moan_device("no memory in bar", dev);
+		return 0;
+	}
+
+	p = pci_ioremap_bar(dev, bar);
+	if (p == NULL)
+		return -ENOMEM;
+
+	/* Enable CPU Interrupt */
+	writel(readl(p + NI8420_INT_ENABLE_REG) | NI8420_INT_ENABLE_BIT,
+	       p + NI8420_INT_ENABLE_REG);
+
+	iounmap(p);
+	return 0;
+}
+
+#define MITE_IOWBSR1_WSIZE	0xa
+#define MITE_IOWBSR1_WIN_OFFSET	0x800
+#define MITE_IOWBSR1_WENAB	(1 << 7)
+#define MITE_LCIMR1_IO_IE_0	(1 << 24)
+#define MITE_LCIMR2_SET_CPU_IE	(1 << 31)
+#define MITE_IOWCR1_RAMSEL_MASK	0xfffffffe
+
+static int pci_ni8430_init(struct pci_dev *dev)
+{
+	void __iomem *p;
+	struct pci_bus_region region;
+	u32 device_window;
+	unsigned int bar = 0;
+
+	if ((pci_resource_flags(dev, bar) & IORESOURCE_MEM) == 0) {
+		moan_device("no memory in bar", dev);
+		return 0;
+	}
+
+	p = pci_ioremap_bar(dev, bar);
+	if (p == NULL)
+		return -ENOMEM;
+
+	/*
+	 * Set device window address and size in BAR0, while acknowledging that
+	 * the resource structure may contain a translated address that differs
+	 * from the address the device responds to.
+	 */
+	pcibios_resource_to_bus(dev->bus, &region, &dev->resource[bar]);
+	device_window = ((region.start + MITE_IOWBSR1_WIN_OFFSET) & 0xffffff00)
+	                | MITE_IOWBSR1_WENAB | MITE_IOWBSR1_WSIZE;
+	writel(device_window, p + MITE_IOWBSR1);
+
+	/* Set window access to go to RAMSEL IO address space */
+	writel((readl(p + MITE_IOWCR1) & MITE_IOWCR1_RAMSEL_MASK),
+	       p + MITE_IOWCR1);
+
+	/* Enable IO Bus Interrupt 0 */
+	writel(MITE_LCIMR1_IO_IE_0, p + MITE_LCIMR1);
+
+	/* Enable CPU Interrupt */
+	writel(MITE_LCIMR2_SET_CPU_IE, p + MITE_LCIMR2);
+
+	iounmap(p);
+	return 0;
+}
+
+/* UART Port Control Register */
+#define NI8430_PORTCON	0x0f
+#define NI8430_PORTCON_TXVR_ENABLE	(1 << 3)
+
+static int
+pci_ni8430_setup(struct serial_private *priv,
+		 const struct pciserial_board *board,
+		 struct uart_8250_port *port, int idx)
+{
+	struct pci_dev *dev = priv->dev;
+	void __iomem *p;
+	unsigned int bar, offset = board->first_offset;
+
+	if (idx >= board->num_ports)
+		return 1;
+
+	bar = FL_GET_BASE(board->flags);
+	offset += idx * board->uart_offset;
+
+	p = pci_ioremap_bar(dev, bar);
+	if (!p)
+		return -ENOMEM;
+
+	/* enable the transceiver */
+	writeb(readb(p + offset + NI8430_PORTCON) | NI8430_PORTCON_TXVR_ENABLE,
+	       p + offset + NI8430_PORTCON);
+
+	iounmap(p);
+
+	return setup_port(priv, port, bar, offset, board->reg_shift);
+}
+
+static int pci_netmos_9900_setup(struct serial_private *priv,
+				const struct pciserial_board *board,
+				struct uart_8250_port *port, int idx)
+{
+	unsigned int bar;
+
+	if ((priv->dev->device != PCI_DEVICE_ID_NETMOS_9865) &&
+	    (priv->dev->subsystem_device & 0xff00) == 0x3000) {
+		/* netmos apparently orders BARs by datasheet layout, so serial
+		 * ports get BARs 0 and 3 (or 1 and 4 for memmapped)
+		 */
+		bar = 3 * idx;
+
+		return setup_port(priv, port, bar, 0, board->reg_shift);
+	} else {
+		return pci_default_setup(priv, board, port, idx);
+	}
+}
+
+/* the 99xx series comes with a range of device IDs and a variety
+ * of capabilities:
+ *
+ * 9900 has varying capabilities and can cascade to sub-controllers
+ *   (cascading should be purely internal)
+ * 9904 is hardwired with 4 serial ports
+ * 9912 and 9922 are hardwired with 2 serial ports
+ */
+static int pci_netmos_9900_numports(struct pci_dev *dev)
+{
+	unsigned int c = dev->class;
+	unsigned int pi;
+	unsigned short sub_serports;
+
+	pi = (c & 0xff);
+
+	if (pi == 2) {
+		return 1;
+	} else if ((pi == 0) &&
+			   (dev->device == PCI_DEVICE_ID_NETMOS_9900)) {
+		/* two possibilities: 0x30ps encodes number of parallel and
+		 * serial ports, or 0x1000 indicates *something*. This is not
+		 * immediately obvious, since the 2s1p+4s configuration seems
+		 * to offer all functionality on functions 0..2, while still
+		 * advertising the same function 3 as the 4s+2s1p config.
+		 */
+		sub_serports = dev->subsystem_device & 0xf;
+		if (sub_serports > 0) {
+			return sub_serports;
+		} else {
+			dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on ambiguous config.\n");
+			return 0;
+		}
+	}
+
+	moan_device("unknown NetMos/Mostech program interface", dev);
+	return 0;
+}
+
+static int pci_netmos_init(struct pci_dev *dev)
+{
+	/* subdevice 0x00PS means <P> parallel, <S> serial */
+	unsigned int num_serial = dev->subsystem_device & 0xf;
+
+	if ((dev->device == PCI_DEVICE_ID_NETMOS_9901) ||
+		(dev->device == PCI_DEVICE_ID_NETMOS_9865))
+		return 0;
+
+	if (dev->subsystem_vendor == PCI_VENDOR_ID_IBM &&
+			dev->subsystem_device == 0x0299)
+		return 0;
+
+	switch (dev->device) { /* FALLTHROUGH on all */
+		case PCI_DEVICE_ID_NETMOS_9904:
+		case PCI_DEVICE_ID_NETMOS_9912:
+		case PCI_DEVICE_ID_NETMOS_9922:
+		case PCI_DEVICE_ID_NETMOS_9900:
+			num_serial = pci_netmos_9900_numports(dev);
+			break;
+
+		default:
+			if (num_serial == 0 ) {
+				moan_device("unknown NetMos/Mostech device", dev);
+			}
+	}
+
+	if (num_serial == 0)
+		return -ENODEV;
+
+	return num_serial;
+}
+
+/*
+ * These chips are available with optionally one parallel port and up to
+ * two serial ports. Unfortunately they all have the same product id.
+ *
+ * Basic configuration is done over a region of 32 I/O ports. The base
+ * ioport is called INTA or INTC, depending on docs/other drivers.
+ *
+ * The region of the 32 I/O ports is configured in POSIO0R...
+ */
+
+/* registers */
+#define ITE_887x_MISCR		0x9c
+#define ITE_887x_INTCBAR	0x78
+#define ITE_887x_UARTBAR	0x7c
+#define ITE_887x_PS0BAR		0x10
+#define ITE_887x_POSIO0		0x60
+
+/* I/O space size */
+#define ITE_887x_IOSIZE		32
+/* I/O space size (bits 26-24; 8 bytes = 011b) */
+#define ITE_887x_POSIO_IOSIZE_8		(3 << 24)
+/* I/O space size (bits 26-24; 32 bytes = 101b) */
+#define ITE_887x_POSIO_IOSIZE_32	(5 << 24)
+/* Decoding speed (1 = slow, 2 = medium, 3 = fast) */
+#define ITE_887x_POSIO_SPEED		(3 << 29)
+/* enable IO_Space bit */
+#define ITE_887x_POSIO_ENABLE		(1 << 31)
+
+static int pci_ite887x_init(struct pci_dev *dev)
+{
+	/* inta_addr are the configuration addresses of the ITE */
+	static const short inta_addr[] = { 0x2a0, 0x2c0, 0x220, 0x240, 0x1e0,
+							0x200, 0x280, 0 };
+	int ret, i, type;
+	struct resource *iobase = NULL;
+	u32 miscr, uartbar, ioport;
+
+	/* search for the base-ioport */
+	i = 0;
+	while (inta_addr[i] && iobase == NULL) {
+		iobase = request_region(inta_addr[i], ITE_887x_IOSIZE,
+								"ite887x");
+		if (iobase != NULL) {
+			/* write POSIO0R - speed | size | ioport */
+			pci_write_config_dword(dev, ITE_887x_POSIO0,
+				ITE_887x_POSIO_ENABLE | ITE_887x_POSIO_SPEED |
+				ITE_887x_POSIO_IOSIZE_32 | inta_addr[i]);
+			/* write INTCBAR - ioport */
+			pci_write_config_dword(dev, ITE_887x_INTCBAR,
+								inta_addr[i]);
+			ret = inb(inta_addr[i]);
+			if (ret != 0xff) {
+				/* ioport connected */
+				break;
+			}
+			release_region(iobase->start, ITE_887x_IOSIZE);
+			iobase = NULL;
+		}
+		i++;
+	}
+
+	if (!inta_addr[i]) {
+		dev_err(&dev->dev, "ite887x: could not find iobase\n");
+		return -ENODEV;
+	}
+
+	/* start of undocumented type checking (see parport_pc.c) */
+	type = inb(iobase->start + 0x18) & 0x0f;
+
+	switch (type) {
+	case 0x2:	/* ITE8871 (1P) */
+	case 0xa:	/* ITE8875 (1P) */
+		ret = 0;
+		break;
+	case 0xe:	/* ITE8872 (2S1P) */
+		ret = 2;
+		break;
+	case 0x6:	/* ITE8873 (1S) */
+		ret = 1;
+		break;
+	case 0x8:	/* ITE8874 (2S) */
+		ret = 2;
+		break;
+	default:
+		moan_device("Unknown ITE887x", dev);
+		ret = -ENODEV;
+	}
+
+	/* configure all serial ports */
+	for (i = 0; i < ret; i++) {
+		/* read the I/O port from the device */
+		pci_read_config_dword(dev, ITE_887x_PS0BAR + (0x4 * (i + 1)),
+								&ioport);
+		ioport &= 0x0000FF00;	/* the actual base address */
+		pci_write_config_dword(dev, ITE_887x_POSIO0 + (0x4 * (i + 1)),
+			ITE_887x_POSIO_ENABLE | ITE_887x_POSIO_SPEED |
+			ITE_887x_POSIO_IOSIZE_8 | ioport);
+
+		/* write the ioport to the UARTBAR */
+		pci_read_config_dword(dev, ITE_887x_UARTBAR, &uartbar);
+		uartbar &= ~(0xffff << (16 * i));	/* clear half the reg */
+		uartbar |= (ioport << (16 * i));	/* set the ioport */
+		pci_write_config_dword(dev, ITE_887x_UARTBAR, uartbar);
+
+		/* get current config */
+		pci_read_config_dword(dev, ITE_887x_MISCR, &miscr);
+		/* disable interrupts (UARTx_Routing[3:0]) */
+		miscr &= ~(0xf << (12 - 4 * i));
+		/* activate the UART (UARTx_En) */
+		miscr |= 1 << (23 - i);
+		/* write new config with activated UART */
+		pci_write_config_dword(dev, ITE_887x_MISCR, miscr);
+	}
+
+	if (ret <= 0) {
+		/* the device has no UARTs if we get here */
+		release_region(iobase->start, ITE_887x_IOSIZE);
+	}
+
+	return ret;
+}
+
+static void pci_ite887x_exit(struct pci_dev *dev)
+{
+	u32 ioport;
+	/* the ioport is bit 0-15 in POSIO0R */
+	pci_read_config_dword(dev, ITE_887x_POSIO0, &ioport);
+	ioport &= 0xffff;
+	release_region(ioport, ITE_887x_IOSIZE);
+}
+
+/*
+ * EndRun Technologies.
+ * Determine the number of ports available on the device.
+ */
+#define PCI_VENDOR_ID_ENDRUN			0x7401
+#define PCI_DEVICE_ID_ENDRUN_1588	0xe100
+
+static int pci_endrun_init(struct pci_dev *dev)
+{
+	u8 __iomem *p;
+	unsigned long deviceID;
+	unsigned int  number_uarts = 0;
+
+	/* EndRun device is all 0xexxx */
+	if (dev->vendor == PCI_VENDOR_ID_ENDRUN &&
+		(dev->device & 0xf000) != 0xe000)
+		return 0;
+
+	p = pci_iomap(dev, 0, 5);
+	if (p == NULL)
+		return -ENOMEM;
+
+	deviceID = ioread32(p);
+	/* EndRun device */
+	if (deviceID == 0x07000200) {
+		number_uarts = ioread8(p + 4);
+		dev_dbg(&dev->dev,
+			"%d ports detected on EndRun PCI Express device\n",
+			number_uarts);
+	}
+	pci_iounmap(dev, p);
+	return number_uarts;
+}
+
+/*
+ * Oxford Semiconductor Inc.
+ * Check that device is part of the Tornado range of devices, then determine
+ * the number of ports available on the device.
+ */
+static int pci_oxsemi_tornado_init(struct pci_dev *dev)
+{
+	u8 __iomem *p;
+	unsigned long deviceID;
+	unsigned int  number_uarts = 0;
+
+	/* OxSemi Tornado devices are all 0xCxxx */
+	if (dev->vendor == PCI_VENDOR_ID_OXSEMI &&
+	    (dev->device & 0xF000) != 0xC000)
+		return 0;
+
+	p = pci_iomap(dev, 0, 5);
+	if (p == NULL)
+		return -ENOMEM;
+
+	deviceID = ioread32(p);
+	/* Tornado device */
+	if (deviceID == 0x07000200) {
+		number_uarts = ioread8(p + 4);
+		dev_dbg(&dev->dev,
+			"%d ports detected on Oxford PCI Express device\n",
+			number_uarts);
+	}
+	pci_iounmap(dev, p);
+	return number_uarts;
+}
+
+static int pci_asix_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	port->bugs |= UART_BUG_PARITY;
+	return pci_default_setup(priv, board, port, idx);
+}
+
+/* Quatech devices have their own extra interface features */
+
+struct quatech_feature {
+	u16 devid;
+	bool amcc;
+};
+
+#define QPCR_TEST_FOR1		0x3F
+#define QPCR_TEST_GET1		0x00
+#define QPCR_TEST_FOR2		0x40
+#define QPCR_TEST_GET2		0x40
+#define QPCR_TEST_FOR3		0x80
+#define QPCR_TEST_GET3		0x40
+#define QPCR_TEST_FOR4		0xC0
+#define QPCR_TEST_GET4		0x80
+
+#define QOPR_CLOCK_X1		0x0000
+#define QOPR_CLOCK_X2		0x0001
+#define QOPR_CLOCK_X4		0x0002
+#define QOPR_CLOCK_X8		0x0003
+#define QOPR_CLOCK_RATE_MASK	0x0003
+
+
+static struct quatech_feature quatech_cards[] = {
+	{ PCI_DEVICE_ID_QUATECH_QSC100,   1 },
+	{ PCI_DEVICE_ID_QUATECH_DSC100,   1 },
+	{ PCI_DEVICE_ID_QUATECH_DSC100E,  0 },
+	{ PCI_DEVICE_ID_QUATECH_DSC200,   1 },
+	{ PCI_DEVICE_ID_QUATECH_DSC200E,  0 },
+	{ PCI_DEVICE_ID_QUATECH_ESC100D,  1 },
+	{ PCI_DEVICE_ID_QUATECH_ESC100M,  1 },
+	{ PCI_DEVICE_ID_QUATECH_QSCP100,  1 },
+	{ PCI_DEVICE_ID_QUATECH_DSCP100,  1 },
+	{ PCI_DEVICE_ID_QUATECH_QSCP200,  1 },
+	{ PCI_DEVICE_ID_QUATECH_DSCP200,  1 },
+	{ PCI_DEVICE_ID_QUATECH_ESCLP100, 0 },
+	{ PCI_DEVICE_ID_QUATECH_QSCLP100, 0 },
+	{ PCI_DEVICE_ID_QUATECH_DSCLP100, 0 },
+	{ PCI_DEVICE_ID_QUATECH_SSCLP100, 0 },
+	{ PCI_DEVICE_ID_QUATECH_QSCLP200, 0 },
+	{ PCI_DEVICE_ID_QUATECH_DSCLP200, 0 },
+	{ PCI_DEVICE_ID_QUATECH_SSCLP200, 0 },
+	{ PCI_DEVICE_ID_QUATECH_SPPXP_100, 0 },
+	{ 0, }
+};
+
+static int pci_quatech_amcc(u16 devid)
+{
+	struct quatech_feature *qf = &quatech_cards[0];
+	while (qf->devid) {
+		if (qf->devid == devid)
+			return qf->amcc;
+		qf++;
+	}
+	pr_err("quatech: unknown port type '0x%04X'.\n", devid);
+	return 0;
+};
+
+static int pci_quatech_rqopr(struct uart_8250_port *port)
+{
+	unsigned long base = port->port.iobase;
+	u8 LCR, val;
+
+	LCR = inb(base + UART_LCR);
+	outb(0xBF, base + UART_LCR);
+	val = inb(base + UART_SCR);
+	outb(LCR, base + UART_LCR);
+	return val;
+}
+
+static void pci_quatech_wqopr(struct uart_8250_port *port, u8 qopr)
+{
+	unsigned long base = port->port.iobase;
+	u8 LCR, val;
+
+	LCR = inb(base + UART_LCR);
+	outb(0xBF, base + UART_LCR);
+	val = inb(base + UART_SCR);
+	outb(qopr, base + UART_SCR);
+	outb(LCR, base + UART_LCR);
+}
+
+static int pci_quatech_rqmcr(struct uart_8250_port *port)
+{
+	unsigned long base = port->port.iobase;
+	u8 LCR, val, qmcr;
+
+	LCR = inb(base + UART_LCR);
+	outb(0xBF, base + UART_LCR);
+	val = inb(base + UART_SCR);
+	outb(val | 0x10, base + UART_SCR);
+	qmcr = inb(base + UART_MCR);
+	outb(val, base + UART_SCR);
+	outb(LCR, base + UART_LCR);
+
+	return qmcr;
+}
+
+static void pci_quatech_wqmcr(struct uart_8250_port *port, u8 qmcr)
+{
+	unsigned long base = port->port.iobase;
+	u8 LCR, val;
+
+	LCR = inb(base + UART_LCR);
+	outb(0xBF, base + UART_LCR);
+	val = inb(base + UART_SCR);
+	outb(val | 0x10, base + UART_SCR);
+	outb(qmcr, base + UART_MCR);
+	outb(val, base + UART_SCR);
+	outb(LCR, base + UART_LCR);
+}
+
+static int pci_quatech_has_qmcr(struct uart_8250_port *port)
+{
+	unsigned long base = port->port.iobase;
+	u8 LCR, val;
+
+	LCR = inb(base + UART_LCR);
+	outb(0xBF, base + UART_LCR);
+	val = inb(base + UART_SCR);
+	if (val & 0x20) {
+		outb(0x80, UART_LCR);
+		if (!(inb(UART_SCR) & 0x20)) {
+			outb(LCR, base + UART_LCR);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+static int pci_quatech_test(struct uart_8250_port *port)
+{
+	u8 reg;
+	u8 qopr = pci_quatech_rqopr(port);
+	pci_quatech_wqopr(port, qopr & QPCR_TEST_FOR1);
+	reg = pci_quatech_rqopr(port) & 0xC0;
+	if (reg != QPCR_TEST_GET1)
+		return -EINVAL;
+	pci_quatech_wqopr(port, (qopr & QPCR_TEST_FOR1)|QPCR_TEST_FOR2);
+	reg = pci_quatech_rqopr(port) & 0xC0;
+	if (reg != QPCR_TEST_GET2)
+		return -EINVAL;
+	pci_quatech_wqopr(port, (qopr & QPCR_TEST_FOR1)|QPCR_TEST_FOR3);
+	reg = pci_quatech_rqopr(port) & 0xC0;
+	if (reg != QPCR_TEST_GET3)
+		return -EINVAL;
+	pci_quatech_wqopr(port, (qopr & QPCR_TEST_FOR1)|QPCR_TEST_FOR4);
+	reg = pci_quatech_rqopr(port) & 0xC0;
+	if (reg != QPCR_TEST_GET4)
+		return -EINVAL;
+
+	pci_quatech_wqopr(port, qopr);
+	return 0;
+}
+
+static int pci_quatech_clock(struct uart_8250_port *port)
+{
+	u8 qopr, reg, set;
+	unsigned long clock;
+
+	if (pci_quatech_test(port) < 0)
+		return 1843200;
+
+	qopr = pci_quatech_rqopr(port);
+
+	pci_quatech_wqopr(port, qopr & ~QOPR_CLOCK_X8);
+	reg = pci_quatech_rqopr(port);
+	if (reg & QOPR_CLOCK_X8) {
+		clock = 1843200;
+		goto out;
+	}
+	pci_quatech_wqopr(port, qopr | QOPR_CLOCK_X8);
+	reg = pci_quatech_rqopr(port);
+	if (!(reg & QOPR_CLOCK_X8)) {
+		clock = 1843200;
+		goto out;
+	}
+	reg &= QOPR_CLOCK_X8;
+	if (reg == QOPR_CLOCK_X2) {
+		clock =  3685400;
+		set = QOPR_CLOCK_X2;
+	} else if (reg == QOPR_CLOCK_X4) {
+		clock = 7372800;
+		set = QOPR_CLOCK_X4;
+	} else if (reg == QOPR_CLOCK_X8) {
+		clock = 14745600;
+		set = QOPR_CLOCK_X8;
+	} else {
+		clock = 1843200;
+		set = QOPR_CLOCK_X1;
+	}
+	qopr &= ~QOPR_CLOCK_RATE_MASK;
+	qopr |= set;
+
+out:
+	pci_quatech_wqopr(port, qopr);
+	return clock;
+}
+
+static int pci_quatech_rs422(struct uart_8250_port *port)
+{
+	u8 qmcr;
+	int rs422 = 0;
+
+	if (!pci_quatech_has_qmcr(port))
+		return 0;
+	qmcr = pci_quatech_rqmcr(port);
+	pci_quatech_wqmcr(port, 0xFF);
+	if (pci_quatech_rqmcr(port))
+		rs422 = 1;
+	pci_quatech_wqmcr(port, qmcr);
+	return rs422;
+}
+
+static int pci_quatech_init(struct pci_dev *dev)
+{
+	if (pci_quatech_amcc(dev->device)) {
+		unsigned long base = pci_resource_start(dev, 0);
+		if (base) {
+			u32 tmp;
+			outl(inl(base + 0x38) | 0x00002000, base + 0x38);
+			tmp = inl(base + 0x3c);
+			outl(tmp | 0x01000000, base + 0x3c);
+			outl(tmp &= ~0x01000000, base + 0x3c);
+		}
+	}
+	return 0;
+}
+
+static int pci_quatech_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	/* Needed by pci_quatech calls below */
+	port->port.iobase = pci_resource_start(priv->dev, FL_GET_BASE(board->flags));
+	/* Set up the clocking */
+	port->port.uartclk = pci_quatech_clock(port);
+	/* For now just warn about RS422 */
+	if (pci_quatech_rs422(port))
+		pr_warn("quatech: software control of RS422 features not currently supported.\n");
+	return pci_default_setup(priv, board, port, idx);
+}
+
+static void pci_quatech_exit(struct pci_dev *dev)
+{
+}
+
+static int pci_default_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	unsigned int bar, offset = board->first_offset, maxnr;
+
+	bar = FL_GET_BASE(board->flags);
+	if (board->flags & FL_BASE_BARS)
+		bar += idx;
+	else
+		offset += idx * board->uart_offset;
+
+	maxnr = (pci_resource_len(priv->dev, bar) - board->first_offset) >>
+		(board->reg_shift + 3);
+
+	if (board->flags & FL_REGION_SZ_CAP && idx >= maxnr)
+		return 1;
+
+	return setup_port(priv, port, bar, offset, board->reg_shift);
+}
+
+static int pci_pericom_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	unsigned int bar, offset = board->first_offset, maxnr;
+
+	bar = FL_GET_BASE(board->flags);
+	if (board->flags & FL_BASE_BARS)
+		bar += idx;
+	else
+		offset += idx * board->uart_offset;
+
+	maxnr = (pci_resource_len(priv->dev, bar) - board->first_offset) >>
+		(board->reg_shift + 3);
+
+	if (board->flags & FL_REGION_SZ_CAP && idx >= maxnr)
+		return 1;
+
+	port->port.uartclk = 14745600;
+
+	return setup_port(priv, port, bar, offset, board->reg_shift);
+}
+
+static int
+ce4100_serial_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	int ret;
+
+	ret = setup_port(priv, port, idx, 0, board->reg_shift);
+	port->port.iotype = UPIO_MEM32;
+	port->port.type = PORT_XSCALE;
+	port->port.flags = (port->port.flags | UPF_FIXED_PORT | UPF_FIXED_TYPE);
+	port->port.regshift = 2;
+
+	return ret;
+}
+
+#define PCI_DEVICE_ID_INTEL_BYT_UART1	0x0f0a
+#define PCI_DEVICE_ID_INTEL_BYT_UART2	0x0f0c
+
+#define PCI_DEVICE_ID_INTEL_BSW_UART1	0x228a
+#define PCI_DEVICE_ID_INTEL_BSW_UART2	0x228c
+
+#define BYT_PRV_CLK			0x800
+#define BYT_PRV_CLK_EN			(1 << 0)
+#define BYT_PRV_CLK_M_VAL_SHIFT		1
+#define BYT_PRV_CLK_N_VAL_SHIFT		16
+#define BYT_PRV_CLK_UPDATE		(1 << 31)
+
+#define BYT_TX_OVF_INT			0x820
+#define BYT_TX_OVF_INT_MASK		(1 << 1)
+
+static void
+byt_set_termios(struct uart_port *p, struct ktermios *termios,
+		struct ktermios *old)
+{
+	unsigned int baud = tty_termios_baud_rate(termios);
+	unsigned long fref = 100000000, fuart = baud * 16;
+	unsigned long w = BIT(15) - 1;
+	unsigned long m, n;
+	u32 reg;
+
+	/* Get Fuart closer to Fref */
+	fuart *= rounddown_pow_of_two(fref / fuart);
+
+	/*
+	 * For baud rates 0.5M, 1M, 1.5M, 2M, 2.5M, 3M, 3.5M and 4M the
+	 * dividers must be adjusted.
+	 *
+	 * uartclk = (m / n) * 100 MHz, where m <= n
+	 */
+	rational_best_approximation(fuart, fref, w, w, &m, &n);
+	p->uartclk = fuart;
+
+	/* Reset the clock */
+	reg = (m << BYT_PRV_CLK_M_VAL_SHIFT) | (n << BYT_PRV_CLK_N_VAL_SHIFT);
+	writel(reg, p->membase + BYT_PRV_CLK);
+	reg |= BYT_PRV_CLK_EN | BYT_PRV_CLK_UPDATE;
+	writel(reg, p->membase + BYT_PRV_CLK);
+
+	serial8250_do_set_termios(p, termios, old);
+}
+
+static bool byt_dma_filter(struct dma_chan *chan, void *param)
+{
+	struct dw_dma_slave *dws = param;
+
+	if (dws->dma_dev != chan->device->dev)
+		return false;
+
+	chan->private = dws;
+	return true;
+}
+
+static int
+byt_serial_setup(struct serial_private *priv,
+		 const struct pciserial_board *board,
+		 struct uart_8250_port *port, int idx)
+{
+	struct pci_dev *pdev = priv->dev;
+	struct device *dev = port->port.dev;
+	struct uart_8250_dma *dma;
+	struct dw_dma_slave *tx_param, *rx_param;
+	struct pci_dev *dma_dev;
+	int ret;
+
+	dma = devm_kzalloc(dev, sizeof(*dma), GFP_KERNEL);
+	if (!dma)
+		return -ENOMEM;
+
+	tx_param = devm_kzalloc(dev, sizeof(*tx_param), GFP_KERNEL);
+	if (!tx_param)
+		return -ENOMEM;
+
+	rx_param = devm_kzalloc(dev, sizeof(*rx_param), GFP_KERNEL);
+	if (!rx_param)
+		return -ENOMEM;
+
+	switch (pdev->device) {
+	case PCI_DEVICE_ID_INTEL_BYT_UART1:
+	case PCI_DEVICE_ID_INTEL_BSW_UART1:
+		rx_param->src_id = 3;
+		tx_param->dst_id = 2;
+		break;
+	case PCI_DEVICE_ID_INTEL_BYT_UART2:
+	case PCI_DEVICE_ID_INTEL_BSW_UART2:
+		rx_param->src_id = 5;
+		tx_param->dst_id = 4;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	rx_param->src_master = 1;
+	rx_param->dst_master = 0;
+
+	dma->rxconf.src_maxburst = 16;
+
+	tx_param->src_master = 1;
+	tx_param->dst_master = 0;
+
+	dma->txconf.dst_maxburst = 16;
+
+	dma_dev = pci_get_slot(pdev->bus, PCI_DEVFN(PCI_SLOT(pdev->devfn), 0));
+	rx_param->dma_dev = &dma_dev->dev;
+	tx_param->dma_dev = &dma_dev->dev;
+
+	dma->fn = byt_dma_filter;
+	dma->rx_param = rx_param;
+	dma->tx_param = tx_param;
+
+	ret = pci_default_setup(priv, board, port, idx);
+	port->port.iotype = UPIO_MEM;
+	port->port.type = PORT_16550A;
+	port->port.flags = (port->port.flags | UPF_FIXED_PORT | UPF_FIXED_TYPE);
+	port->port.set_termios = byt_set_termios;
+	port->port.fifosize = 64;
+	port->tx_loadsz = 64;
+	port->dma = dma;
+	port->capabilities = UART_CAP_FIFO | UART_CAP_AFE;
+
+	/* Disable Tx counter interrupts */
+	writel(BYT_TX_OVF_INT_MASK, port->port.membase + BYT_TX_OVF_INT);
+
+	return ret;
+}
+
+#define INTEL_MID_UART_PS		0x30
+#define INTEL_MID_UART_MUL		0x34
+#define INTEL_MID_UART_DIV		0x38
+
+static void intel_mid_set_termios(struct uart_port *p,
+				  struct ktermios *termios,
+				  struct ktermios *old,
+				  unsigned long fref)
+{
+	unsigned int baud = tty_termios_baud_rate(termios);
+	unsigned short ps = 16;
+	unsigned long fuart = baud * ps;
+	unsigned long w = BIT(24) - 1;
+	unsigned long mul, div;
+
+	if (fref < fuart) {
+		/* Find prescaler value that satisfies Fuart < Fref */
+		if (fref > baud)
+			ps = fref / baud;	/* baud rate too high */
+		else
+			ps = 1;			/* PLL case */
+		fuart = baud * ps;
+	} else {
+		/* Get Fuart closer to Fref */
+		fuart *= rounddown_pow_of_two(fref / fuart);
+	}
+
+	rational_best_approximation(fuart, fref, w, w, &mul, &div);
+	p->uartclk = fuart * 16 / ps;		/* core uses ps = 16 always */
+
+	writel(ps, p->membase + INTEL_MID_UART_PS);		/* set PS */
+	writel(mul, p->membase + INTEL_MID_UART_MUL);		/* set MUL */
+	writel(div, p->membase + INTEL_MID_UART_DIV);
+
+	serial8250_do_set_termios(p, termios, old);
+}
+
+static void intel_mid_set_termios_38_4M(struct uart_port *p,
+					struct ktermios *termios,
+					struct ktermios *old)
+{
+	intel_mid_set_termios(p, termios, old, 38400000);
+}
+
+static void intel_mid_set_termios_50M(struct uart_port *p,
+				      struct ktermios *termios,
+				      struct ktermios *old)
+{
+	/*
+	 * The uart clk is 50Mhz, and the baud rate come from:
+	 *      baud = 50M * MUL / (DIV * PS * DLAB)
+	 */
+	intel_mid_set_termios(p, termios, old, 50000000);
+}
+
+static bool intel_mid_dma_filter(struct dma_chan *chan, void *param)
+{
+	struct hsu_dma_slave *s = param;
+
+	if (s->dma_dev != chan->device->dev || s->chan_id != chan->chan_id)
+		return false;
+
+	chan->private = s;
+	return true;
+}
+
+static int intel_mid_serial_setup(struct serial_private *priv,
+				  const struct pciserial_board *board,
+				  struct uart_8250_port *port, int idx,
+				  int index, struct pci_dev *dma_dev)
+{
+	struct device *dev = port->port.dev;
+	struct uart_8250_dma *dma;
+	struct hsu_dma_slave *tx_param, *rx_param;
+
+	dma = devm_kzalloc(dev, sizeof(*dma), GFP_KERNEL);
+	if (!dma)
+		return -ENOMEM;
+
+	tx_param = devm_kzalloc(dev, sizeof(*tx_param), GFP_KERNEL);
+	if (!tx_param)
+		return -ENOMEM;
+
+	rx_param = devm_kzalloc(dev, sizeof(*rx_param), GFP_KERNEL);
+	if (!rx_param)
+		return -ENOMEM;
+
+	rx_param->chan_id = index * 2 + 1;
+	tx_param->chan_id = index * 2;
+
+	dma->rxconf.src_maxburst = 64;
+	dma->txconf.dst_maxburst = 64;
+
+	rx_param->dma_dev = &dma_dev->dev;
+	tx_param->dma_dev = &dma_dev->dev;
+
+	dma->fn = intel_mid_dma_filter;
+	dma->rx_param = rx_param;
+	dma->tx_param = tx_param;
+
+	port->port.type = PORT_16750;
+	port->port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;
+	port->dma = dma;
+
+	return pci_default_setup(priv, board, port, idx);
+}
+
+#define PCI_DEVICE_ID_INTEL_PNW_UART1	0x081b
+#define PCI_DEVICE_ID_INTEL_PNW_UART2	0x081c
+#define PCI_DEVICE_ID_INTEL_PNW_UART3	0x081d
+
+static int pnw_serial_setup(struct serial_private *priv,
+			    const struct pciserial_board *board,
+			    struct uart_8250_port *port, int idx)
+{
+	struct pci_dev *pdev = priv->dev;
+	struct pci_dev *dma_dev;
+	int index;
+
+	switch (pdev->device) {
+	case PCI_DEVICE_ID_INTEL_PNW_UART1:
+		index = 0;
+		break;
+	case PCI_DEVICE_ID_INTEL_PNW_UART2:
+		index = 1;
+		break;
+	case PCI_DEVICE_ID_INTEL_PNW_UART3:
+		index = 2;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	dma_dev = pci_get_slot(pdev->bus, PCI_DEVFN(PCI_SLOT(pdev->devfn), 3));
+
+	port->port.set_termios = intel_mid_set_termios_50M;
+
+	return intel_mid_serial_setup(priv, board, port, idx, index, dma_dev);
+}
+
+#define PCI_DEVICE_ID_INTEL_TNG_UART	0x1191
+
+static int tng_serial_setup(struct serial_private *priv,
+			    const struct pciserial_board *board,
+			    struct uart_8250_port *port, int idx)
+{
+	struct pci_dev *pdev = priv->dev;
+	struct pci_dev *dma_dev;
+	int index = PCI_FUNC(pdev->devfn);
+
+	/* Currently no support for HSU port0 */
+	if (index-- == 0)
+		return -ENODEV;
+
+	dma_dev = pci_get_slot(pdev->bus, PCI_DEVFN(5, 0));
+
+	port->port.set_termios = intel_mid_set_termios_38_4M;
+
+	return intel_mid_serial_setup(priv, board, port, idx, index, dma_dev);
+}
+
+static int
+pci_omegapci_setup(struct serial_private *priv,
+		      const struct pciserial_board *board,
+		      struct uart_8250_port *port, int idx)
+{
+	return setup_port(priv, port, 2, idx * 8, 0);
+}
+
+static int
+pci_brcm_trumanage_setup(struct serial_private *priv,
+			 const struct pciserial_board *board,
+			 struct uart_8250_port *port, int idx)
+{
+	int ret = pci_default_setup(priv, board, port, idx);
+
+	port->port.type = PORT_BRCM_TRUMANAGE;
+	port->port.flags = (port->port.flags | UPF_FIXED_PORT | UPF_FIXED_TYPE);
+	return ret;
+}
+
+static int pci_fintek_setup(struct serial_private *priv,
+			    const struct pciserial_board *board,
+			    struct uart_8250_port *port, int idx)
+{
+	struct pci_dev *pdev = priv->dev;
+	u8 config_base;
+	u16 iobase;
+
+	config_base = 0x40 + 0x08 * idx;
+
+	/* Get the io address from configuration space */
+	pci_read_config_word(pdev, config_base + 4, &iobase);
+
+	dev_dbg(&pdev->dev, "%s: idx=%d iobase=0x%x", __func__, idx, iobase);
+
+	port->port.iotype = UPIO_PORT;
+	port->port.iobase = iobase;
+
+	return 0;
+}
+
+static int pci_fintek_init(struct pci_dev *dev)
+{
+	unsigned long iobase;
+	u32 max_port, i;
+	u32 bar_data[3];
+	u8 config_base;
+
+	switch (dev->device) {
+	case 0x1104: /* 4 ports */
+	case 0x1108: /* 8 ports */
+		max_port = dev->device & 0xff;
+		break;
+	case 0x1112: /* 12 ports */
+		max_port = 12;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* Get the io address dispatch from the BIOS */
+	pci_read_config_dword(dev, 0x24, &bar_data[0]);
+	pci_read_config_dword(dev, 0x20, &bar_data[1]);
+	pci_read_config_dword(dev, 0x1c, &bar_data[2]);
+
+	for (i = 0; i < max_port; ++i) {
+		/* UART0 configuration offset start from 0x40 */
+		config_base = 0x40 + 0x08 * i;
+
+		/* Calculate Real IO Port */
+		iobase = (bar_data[i / 4] & 0xffffffe0) + (i % 4) * 8;
+
+		/* Enable UART I/O port */
+		pci_write_config_byte(dev, config_base + 0x00, 0x01);
+
+		/* Select 128-byte FIFO and 8x FIFO threshold */
+		pci_write_config_byte(dev, config_base + 0x01, 0x33);
+
+		/* LSB UART */
+		pci_write_config_byte(dev, config_base + 0x04,
+				(u8)(iobase & 0xff));
+
+		/* MSB UART */
+		pci_write_config_byte(dev, config_base + 0x05,
+				(u8)((iobase & 0xff00) >> 8));
+
+		pci_write_config_byte(dev, config_base + 0x06, dev->irq);
+	}
+
+	return max_port;
+}
+
+static int skip_tx_en_setup(struct serial_private *priv,
+			const struct pciserial_board *board,
+			struct uart_8250_port *port, int idx)
+{
+	port->port.flags |= UPF_NO_TXEN_TEST;
+	dev_dbg(&priv->dev->dev,
+		"serial8250: skipping TxEn test for device [%04x:%04x] subsystem [%04x:%04x]\n",
+		priv->dev->vendor, priv->dev->device,
+		priv->dev->subsystem_vendor, priv->dev->subsystem_device);
+
+	return pci_default_setup(priv, board, port, idx);
+}
+
+static void kt_handle_break(struct uart_port *p)
+{
+	struct uart_8250_port *up = up_to_u8250p(p);
+	/*
+	 * On receipt of a BI, serial device in Intel ME (Intel
+	 * management engine) needs to have its fifos cleared for sane
+	 * SOL (Serial Over Lan) output.
+	 */
+	serial8250_clear_and_reinit_fifos(up);
+}
+
+static unsigned int kt_serial_in(struct uart_port *p, int offset)
+{
+	struct uart_8250_port *up = up_to_u8250p(p);
+	unsigned int val;
+
+	/*
+	 * When the Intel ME (management engine) gets reset its serial
+	 * port registers could return 0 momentarily.  Functions like
+	 * serial8250_console_write, read and save the IER, perform
+	 * some operation and then restore it.  In order to avoid
+	 * setting IER register inadvertently to 0, if the value read
+	 * is 0, double check with ier value in uart_8250_port and use
+	 * that instead.  up->ier should be the same value as what is
+	 * currently configured.
+	 */
+	val = inb(p->iobase + offset);
+	if (offset == UART_IER) {
+		if (val == 0)
+			val = up->ier;
+	}
+	return val;
+}
+
+static int kt_serial_setup(struct serial_private *priv,
+			   const struct pciserial_board *board,
+			   struct uart_8250_port *port, int idx)
+{
+	port->port.flags |= UPF_BUG_THRE;
+	port->port.serial_in = kt_serial_in;
+	port->port.handle_break = kt_handle_break;
+	return skip_tx_en_setup(priv, board, port, idx);
+}
+
+static int pci_eg20t_init(struct pci_dev *dev)
+{
+#if defined(CONFIG_SERIAL_PCH_UART) || defined(CONFIG_SERIAL_PCH_UART_MODULE)
+	return -ENODEV;
+#else
+	return 0;
+#endif
+}
+
+static int
+pci_xr17c154_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	port->port.flags |= UPF_EXAR_EFR;
+	return pci_default_setup(priv, board, port, idx);
+}
+
+static int
+pci_xr17v35x_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	u8 __iomem *p;
+
+	p = pci_ioremap_bar(priv->dev, 0);
+	if (p == NULL)
+		return -ENOMEM;
+
+	port->port.flags |= UPF_EXAR_EFR;
+
+	/*
+	 * Setup Multipurpose Input/Output pins.
+	 */
+	if (idx == 0) {
+		writeb(0x00, p + 0x8f); /*MPIOINT[7:0]*/
+		writeb(0x00, p + 0x90); /*MPIOLVL[7:0]*/
+		writeb(0x00, p + 0x91); /*MPIO3T[7:0]*/
+		writeb(0x00, p + 0x92); /*MPIOINV[7:0]*/
+		writeb(0x00, p + 0x93); /*MPIOSEL[7:0]*/
+		writeb(0x00, p + 0x94); /*MPIOOD[7:0]*/
+		writeb(0x00, p + 0x95); /*MPIOINT[15:8]*/
+		writeb(0x00, p + 0x96); /*MPIOLVL[15:8]*/
+		writeb(0x00, p + 0x97); /*MPIO3T[15:8]*/
+		writeb(0x00, p + 0x98); /*MPIOINV[15:8]*/
+		writeb(0x00, p + 0x99); /*MPIOSEL[15:8]*/
+		writeb(0x00, p + 0x9a); /*MPIOOD[15:8]*/
+	}
+	writeb(0x00, p + UART_EXAR_8XMODE);
+	writeb(UART_FCTR_EXAR_TRGD, p + UART_EXAR_FCTR);
+	writeb(128, p + UART_EXAR_TXTRG);
+	writeb(128, p + UART_EXAR_RXTRG);
+	iounmap(p);
+
+	return pci_default_setup(priv, board, port, idx);
+}
+
+#define PCI_DEVICE_ID_COMMTECH_4222PCI335 0x0004
+#define PCI_DEVICE_ID_COMMTECH_4224PCI335 0x0002
+#define PCI_DEVICE_ID_COMMTECH_2324PCI335 0x000a
+#define PCI_DEVICE_ID_COMMTECH_2328PCI335 0x000b
+
+static int
+pci_fastcom335_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	u8 __iomem *p;
+
+	p = pci_ioremap_bar(priv->dev, 0);
+	if (p == NULL)
+		return -ENOMEM;
+
+	port->port.flags |= UPF_EXAR_EFR;
+
+	/*
+	 * Setup Multipurpose Input/Output pins.
+	 */
+	if (idx == 0) {
+		switch (priv->dev->device) {
+		case PCI_DEVICE_ID_COMMTECH_4222PCI335:
+		case PCI_DEVICE_ID_COMMTECH_4224PCI335:
+			writeb(0x78, p + 0x90); /* MPIOLVL[7:0] */
+			writeb(0x00, p + 0x92); /* MPIOINV[7:0] */
+			writeb(0x00, p + 0x93); /* MPIOSEL[7:0] */
+			break;
+		case PCI_DEVICE_ID_COMMTECH_2324PCI335:
+		case PCI_DEVICE_ID_COMMTECH_2328PCI335:
+			writeb(0x00, p + 0x90); /* MPIOLVL[7:0] */
+			writeb(0xc0, p + 0x92); /* MPIOINV[7:0] */
+			writeb(0xc0, p + 0x93); /* MPIOSEL[7:0] */
+			break;
+		}
+		writeb(0x00, p + 0x8f); /* MPIOINT[7:0] */
+		writeb(0x00, p + 0x91); /* MPIO3T[7:0] */
+		writeb(0x00, p + 0x94); /* MPIOOD[7:0] */
+	}
+	writeb(0x00, p + UART_EXAR_8XMODE);
+	writeb(UART_FCTR_EXAR_TRGD, p + UART_EXAR_FCTR);
+	writeb(32, p + UART_EXAR_TXTRG);
+	writeb(32, p + UART_EXAR_RXTRG);
+	iounmap(p);
+
+	return pci_default_setup(priv, board, port, idx);
+}
+
+static int
+pci_wch_ch353_setup(struct serial_private *priv,
+                    const struct pciserial_board *board,
+                    struct uart_8250_port *port, int idx)
+{
+	port->port.flags |= UPF_FIXED_TYPE;
+	port->port.type = PORT_16550A;
+	return pci_default_setup(priv, board, port, idx);
+}
+
+static int
+pci_wch_ch38x_setup(struct serial_private *priv,
+                    const struct pciserial_board *board,
+                    struct uart_8250_port *port, int idx)
+{
+	port->port.flags |= UPF_FIXED_TYPE;
+	port->port.type = PORT_16850;
+	return pci_default_setup(priv, board, port, idx);
+}
+
+#define PCI_VENDOR_ID_SBSMODULARIO	0x124B
+#define PCI_SUBVENDOR_ID_SBSMODULARIO	0x124B
+#define PCI_DEVICE_ID_OCTPRO		0x0001
+#define PCI_SUBDEVICE_ID_OCTPRO232	0x0108
+#define PCI_SUBDEVICE_ID_OCTPRO422	0x0208
+#define PCI_SUBDEVICE_ID_POCTAL232	0x0308
+#define PCI_SUBDEVICE_ID_POCTAL422	0x0408
+#define PCI_SUBDEVICE_ID_SIIG_DUAL_00	0x2500
+#define PCI_SUBDEVICE_ID_SIIG_DUAL_30	0x2530
+#define PCI_VENDOR_ID_ADVANTECH		0x13fe
+#define PCI_DEVICE_ID_INTEL_CE4100_UART 0x2e66
+#define PCI_DEVICE_ID_ADVANTECH_PCI3620	0x3620
+#define PCI_DEVICE_ID_ADVANTECH_PCI3618	0x3618
+#define PCI_DEVICE_ID_ADVANTECH_PCIf618	0xf618
+#define PCI_DEVICE_ID_TITAN_200I	0x8028
+#define PCI_DEVICE_ID_TITAN_400I	0x8048
+#define PCI_DEVICE_ID_TITAN_800I	0x8088
+#define PCI_DEVICE_ID_TITAN_800EH	0xA007
+#define PCI_DEVICE_ID_TITAN_800EHB	0xA008
+#define PCI_DEVICE_ID_TITAN_400EH	0xA009
+#define PCI_DEVICE_ID_TITAN_100E	0xA010
+#define PCI_DEVICE_ID_TITAN_200E	0xA012
+#define PCI_DEVICE_ID_TITAN_400E	0xA013
+#define PCI_DEVICE_ID_TITAN_800E	0xA014
+#define PCI_DEVICE_ID_TITAN_200EI	0xA016
+#define PCI_DEVICE_ID_TITAN_200EISI	0xA017
+#define PCI_DEVICE_ID_TITAN_200V3	0xA306
+#define PCI_DEVICE_ID_TITAN_400V3	0xA310
+#define PCI_DEVICE_ID_TITAN_410V3	0xA312
+#define PCI_DEVICE_ID_TITAN_800V3	0xA314
+#define PCI_DEVICE_ID_TITAN_800V3B	0xA315
+#define PCI_DEVICE_ID_OXSEMI_16PCI958	0x9538
+#define PCIE_DEVICE_ID_NEO_2_OX_IBM	0x00F6
+#define PCI_DEVICE_ID_PLX_CRONYX_OMEGA	0xc001
+#define PCI_DEVICE_ID_INTEL_PATSBURG_KT 0x1d3d
+#define PCI_VENDOR_ID_WCH		0x4348
+#define PCI_DEVICE_ID_WCH_CH352_2S	0x3253
+#define PCI_DEVICE_ID_WCH_CH353_4S	0x3453
+#define PCI_DEVICE_ID_WCH_CH353_2S1PF	0x5046
+#define PCI_DEVICE_ID_WCH_CH353_1S1P	0x5053
+#define PCI_DEVICE_ID_WCH_CH353_2S1P	0x7053
+#define PCI_VENDOR_ID_AGESTAR		0x5372
+#define PCI_DEVICE_ID_AGESTAR_9375	0x6872
+#define PCI_VENDOR_ID_ASIX		0x9710
+#define PCI_DEVICE_ID_COMMTECH_4224PCIE	0x0020
+#define PCI_DEVICE_ID_COMMTECH_4228PCIE	0x0021
+#define PCI_DEVICE_ID_COMMTECH_4222PCIE	0x0022
+#define PCI_DEVICE_ID_BROADCOM_TRUMANAGE 0x160a
+#define PCI_DEVICE_ID_AMCC_ADDIDATA_APCI7800 0x818e
+#define PCI_DEVICE_ID_INTEL_QRK_UART	0x0936
+
+#define PCI_VENDOR_ID_SUNIX		0x1fd4
+#define PCI_DEVICE_ID_SUNIX_1999	0x1999
+
+#define PCIE_VENDOR_ID_WCH		0x1c00
+#define PCIE_DEVICE_ID_WCH_CH382_2S1P	0x3250
+#define PCIE_DEVICE_ID_WCH_CH384_4S	0x3470
+
+#define PCI_DEVICE_ID_EXAR_XR17V8358	0x8358
+
+/* Unknown vendors/cards - this should not be in linux/pci_ids.h */
+#define PCI_SUBDEVICE_ID_UNKNOWN_0x1584	0x1584
+#define PCI_SUBDEVICE_ID_UNKNOWN_0x1588	0x1588
+
+/*
+ * Master list of serial port init/setup/exit quirks.
+ * This does not describe the general nature of the port.
+ * (ie, baud base, number and location of ports, etc)
+ *
+ * This list is ordered alphabetically by vendor then device.
+ * Specific entries must come before more generic entries.
+ */
+static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
+	/*
+	* ADDI-DATA GmbH communication cards <info@addi-data.com>
+	*/
+	{
+		.vendor         = PCI_VENDOR_ID_AMCC,
+		.device         = PCI_DEVICE_ID_AMCC_ADDIDATA_APCI7800,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = addidata_apci7800_setup,
+	},
+	/*
+	 * AFAVLAB cards - these may be called via parport_serial
+	 *  It is not clear whether this applies to all products.
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_AFAVLAB,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= afavlab_setup,
+	},
+	/*
+	 * HP Diva
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_HP,
+		.device		= PCI_DEVICE_ID_HP_DIVA,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_hp_diva_init,
+		.setup		= pci_hp_diva_setup,
+	},
+	/*
+	 * Intel
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_80960_RP,
+		.subvendor	= 0xe4bf,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_inteli960ni_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_8257X_SOL,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= skip_tx_en_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_82573L_SOL,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= skip_tx_en_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_82573E_SOL,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= skip_tx_en_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_CE4100_UART,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= ce4100_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_PATSBURG_KT,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= kt_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BYT_UART1,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= byt_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BYT_UART2,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= byt_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_PNW_UART1,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pnw_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_PNW_UART2,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pnw_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_PNW_UART3,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pnw_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_TNG_UART,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= tng_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BSW_UART1,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= byt_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BSW_UART2,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= byt_serial_setup,
+	},
+	/*
+	 * ITE
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_ITE,
+		.device		= PCI_DEVICE_ID_ITE_8872,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ite887x_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ite887x_exit,
+	},
+	/*
+	 * National Instruments
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCI23216,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCI2328,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCI2324,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCI2322,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCI2324I,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PCI2322I,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PXI8420_23216,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PXI8420_2328,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PXI8420_2324,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PXI8420_2322,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PXI8422_2324,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_DEVICE_ID_NI_PXI8422_2322,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8420_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_ni8420_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_NI,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_ni8430_init,
+		.setup		= pci_ni8430_setup,
+		.exit		= pci_ni8430_exit,
+	},
+	/* Quatech */
+	{
+		.vendor		= PCI_VENDOR_ID_QUATECH,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_quatech_init,
+		.setup		= pci_quatech_setup,
+		.exit		= pci_quatech_exit,
+	},
+	/*
+	 * Panacom
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_PANACOM,
+		.device		= PCI_DEVICE_ID_PANACOM_QUADMODEM,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_plx9050_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_plx9050_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_PANACOM,
+		.device		= PCI_DEVICE_ID_PANACOM_DUALMODEM,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_plx9050_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_plx9050_exit,
+	},
+	/*
+	 * Pericom
+	 */
+	{
+		.vendor		= 0x12d8,
+		.device		= 0x7952,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_pericom_setup,
+	},
+	{
+		.vendor		= 0x12d8,
+		.device		= 0x7954,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_pericom_setup,
+	},
+	{
+		.vendor		= 0x12d8,
+		.device		= 0x7958,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_pericom_setup,
+	},
+
+	/*
+	 * PLX
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_PLX,
+		.device		= PCI_DEVICE_ID_PLX_9050,
+		.subvendor	= PCI_SUBVENDOR_ID_EXSYS,
+		.subdevice	= PCI_SUBDEVICE_ID_EXSYS_4055,
+		.init		= pci_plx9050_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_plx9050_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_PLX,
+		.device		= PCI_DEVICE_ID_PLX_9050,
+		.subvendor	= PCI_SUBVENDOR_ID_KEYSPAN,
+		.subdevice	= PCI_SUBDEVICE_ID_KEYSPAN_SX2,
+		.init		= pci_plx9050_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_plx9050_exit,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_PLX,
+		.device		= PCI_DEVICE_ID_PLX_ROMULUS,
+		.subvendor	= PCI_VENDOR_ID_PLX,
+		.subdevice	= PCI_DEVICE_ID_PLX_ROMULUS,
+		.init		= pci_plx9050_init,
+		.setup		= pci_default_setup,
+		.exit		= pci_plx9050_exit,
+	},
+	/*
+	 * SBS Technologies, Inc., PMC-OCTALPRO 232
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_SBSMODULARIO,
+		.device		= PCI_DEVICE_ID_OCTPRO,
+		.subvendor	= PCI_SUBVENDOR_ID_SBSMODULARIO,
+		.subdevice	= PCI_SUBDEVICE_ID_OCTPRO232,
+		.init		= sbs_init,
+		.setup		= sbs_setup,
+		.exit		= sbs_exit,
+	},
+	/*
+	 * SBS Technologies, Inc., PMC-OCTALPRO 422
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_SBSMODULARIO,
+		.device		= PCI_DEVICE_ID_OCTPRO,
+		.subvendor	= PCI_SUBVENDOR_ID_SBSMODULARIO,
+		.subdevice	= PCI_SUBDEVICE_ID_OCTPRO422,
+		.init		= sbs_init,
+		.setup		= sbs_setup,
+		.exit		= sbs_exit,
+	},
+	/*
+	 * SBS Technologies, Inc., P-Octal 232
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_SBSMODULARIO,
+		.device		= PCI_DEVICE_ID_OCTPRO,
+		.subvendor	= PCI_SUBVENDOR_ID_SBSMODULARIO,
+		.subdevice	= PCI_SUBDEVICE_ID_POCTAL232,
+		.init		= sbs_init,
+		.setup		= sbs_setup,
+		.exit		= sbs_exit,
+	},
+	/*
+	 * SBS Technologies, Inc., P-Octal 422
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_SBSMODULARIO,
+		.device		= PCI_DEVICE_ID_OCTPRO,
+		.subvendor	= PCI_SUBVENDOR_ID_SBSMODULARIO,
+		.subdevice	= PCI_SUBDEVICE_ID_POCTAL422,
+		.init		= sbs_init,
+		.setup		= sbs_setup,
+		.exit		= sbs_exit,
+	},
+	/*
+	 * SIIG cards - these may be called via parport_serial
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_SIIG,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_siig_init,
+		.setup		= pci_siig_setup,
+	},
+	/*
+	 * Titan cards
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_TITAN,
+		.device		= PCI_DEVICE_ID_TITAN_400L,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= titan_400l_800l_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_TITAN,
+		.device		= PCI_DEVICE_ID_TITAN_800L,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= titan_400l_800l_setup,
+	},
+	/*
+	 * Timedia cards
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_TIMEDIA,
+		.device		= PCI_DEVICE_ID_TIMEDIA_1889,
+		.subvendor	= PCI_VENDOR_ID_TIMEDIA,
+		.subdevice	= PCI_ANY_ID,
+		.probe		= pci_timedia_probe,
+		.init		= pci_timedia_init,
+		.setup		= pci_timedia_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_TIMEDIA,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_timedia_setup,
+	},
+	/*
+	 * SUNIX (Timedia) cards
+	 * Do not "probe" for these cards as there is at least one combination
+	 * card that should be handled by parport_pc that doesn't match the
+	 * rule in pci_timedia_probe.
+	 * It is part number is MIO5079A but its subdevice ID is 0x0102.
+	 * There are some boards with part number SER5037AL that report
+	 * subdevice ID 0x0002.
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_SUNIX,
+		.device		= PCI_DEVICE_ID_SUNIX_1999,
+		.subvendor	= PCI_VENDOR_ID_SUNIX,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_timedia_init,
+		.setup		= pci_timedia_setup,
+	},
+	/*
+	 * Exar cards
+	 */
+	{
+		.vendor = PCI_VENDOR_ID_EXAR,
+		.device = PCI_DEVICE_ID_EXAR_XR17C152,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17c154_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_EXAR,
+		.device = PCI_DEVICE_ID_EXAR_XR17C154,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17c154_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_EXAR,
+		.device = PCI_DEVICE_ID_EXAR_XR17C158,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17c154_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_EXAR,
+		.device = PCI_DEVICE_ID_EXAR_XR17V352,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17v35x_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_EXAR,
+		.device = PCI_DEVICE_ID_EXAR_XR17V354,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17v35x_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_EXAR,
+		.device = PCI_DEVICE_ID_EXAR_XR17V358,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17v35x_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_EXAR,
+		.device = PCI_DEVICE_ID_EXAR_XR17V8358,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17v35x_setup,
+	},
+	/*
+	 * Xircom cards
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_XIRCOM,
+		.device		= PCI_DEVICE_ID_XIRCOM_X3201_MDM,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_xircom_init,
+		.setup		= pci_default_setup,
+	},
+	/*
+	 * Netmos cards - these may be called via parport_serial
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_NETMOS,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_netmos_init,
+		.setup		= pci_netmos_9900_setup,
+	},
+	/*
+	 * EndRun Technologies
+	*/
+	{
+		.vendor		= PCI_VENDOR_ID_ENDRUN,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_endrun_init,
+		.setup		= pci_default_setup,
+	},
+	/*
+	 * For Oxford Semiconductor Tornado based devices
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_OXSEMI,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_oxsemi_tornado_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_MAINPINE,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_oxsemi_tornado_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_DIGI,
+		.device		= PCIE_DEVICE_ID_NEO_2_OX_IBM,
+		.subvendor		= PCI_SUBVENDOR_ID_IBM,
+		.subdevice		= PCI_ANY_ID,
+		.init			= pci_oxsemi_tornado_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor         = PCI_VENDOR_ID_INTEL,
+		.device         = 0x8811,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor         = PCI_VENDOR_ID_INTEL,
+		.device         = 0x8812,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor         = PCI_VENDOR_ID_INTEL,
+		.device         = 0x8813,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor         = PCI_VENDOR_ID_INTEL,
+		.device         = 0x8814,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor         = 0x10DB,
+		.device         = 0x8027,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor         = 0x10DB,
+		.device         = 0x8028,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor         = 0x10DB,
+		.device         = 0x8029,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor         = 0x10DB,
+		.device         = 0x800C,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
+	},
+	{
+		.vendor         = 0x10DB,
+		.device         = 0x800D,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= pci_eg20t_init,
+		.setup		= pci_default_setup,
+	},
+	/*
+	 * Cronyx Omega PCI (PLX-chip based)
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_PLX,
+		.device		= PCI_DEVICE_ID_PLX_CRONYX_OMEGA,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_omegapci_setup,
+	},
+	/* WCH CH353 1S1P card (16550 clone) */
+	{
+		.vendor         = PCI_VENDOR_ID_WCH,
+		.device         = PCI_DEVICE_ID_WCH_CH353_1S1P,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch353_setup,
+	},
+	/* WCH CH353 2S1P card (16550 clone) */
+	{
+		.vendor         = PCI_VENDOR_ID_WCH,
+		.device         = PCI_DEVICE_ID_WCH_CH353_2S1P,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch353_setup,
+	},
+	/* WCH CH353 4S card (16550 clone) */
+	{
+		.vendor         = PCI_VENDOR_ID_WCH,
+		.device         = PCI_DEVICE_ID_WCH_CH353_4S,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch353_setup,
+	},
+	/* WCH CH353 2S1PF card (16550 clone) */
+	{
+		.vendor         = PCI_VENDOR_ID_WCH,
+		.device         = PCI_DEVICE_ID_WCH_CH353_2S1PF,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch353_setup,
+	},
+	/* WCH CH352 2S card (16550 clone) */
+	{
+		.vendor		= PCI_VENDOR_ID_WCH,
+		.device		= PCI_DEVICE_ID_WCH_CH352_2S,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_wch_ch353_setup,
+	},
+	/* WCH CH382 2S1P card (16850 clone) */
+	{
+		.vendor         = PCIE_VENDOR_ID_WCH,
+		.device         = PCIE_DEVICE_ID_WCH_CH382_2S1P,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch38x_setup,
+	},
+	/* WCH CH384 4S card (16850 clone) */
+	{
+		.vendor         = PCIE_VENDOR_ID_WCH,
+		.device         = PCIE_DEVICE_ID_WCH_CH384_4S,
+		.subvendor      = PCI_ANY_ID,
+		.subdevice      = PCI_ANY_ID,
+		.setup          = pci_wch_ch38x_setup,
+	},
+	/*
+	 * ASIX devices with FIFO bug
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_ASIX,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_asix_setup,
+	},
+	/*
+	 * Commtech, Inc. Fastcom adapters
+	 *
+	 */
+	{
+		.vendor = PCI_VENDOR_ID_COMMTECH,
+		.device = PCI_DEVICE_ID_COMMTECH_4222PCI335,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_fastcom335_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_COMMTECH,
+		.device = PCI_DEVICE_ID_COMMTECH_4224PCI335,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_fastcom335_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_COMMTECH,
+		.device = PCI_DEVICE_ID_COMMTECH_2324PCI335,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_fastcom335_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_COMMTECH,
+		.device = PCI_DEVICE_ID_COMMTECH_2328PCI335,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_fastcom335_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_COMMTECH,
+		.device = PCI_DEVICE_ID_COMMTECH_4222PCIE,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17v35x_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_COMMTECH,
+		.device = PCI_DEVICE_ID_COMMTECH_4224PCIE,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17v35x_setup,
+	},
+	{
+		.vendor = PCI_VENDOR_ID_COMMTECH,
+		.device = PCI_DEVICE_ID_COMMTECH_4228PCIE,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_xr17v35x_setup,
+	},
+	/*
+	 * Broadcom TruManage (NetXtreme)
+	 */
+	{
+		.vendor		= PCI_VENDOR_ID_BROADCOM,
+		.device		= PCI_DEVICE_ID_BROADCOM_TRUMANAGE,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_brcm_trumanage_setup,
+	},
+	{
+		.vendor		= 0x1c29,
+		.device		= 0x1104,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_fintek_setup,
+		.init		= pci_fintek_init,
+	},
+	{
+		.vendor		= 0x1c29,
+		.device		= 0x1108,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_fintek_setup,
+		.init		= pci_fintek_init,
+	},
+	{
+		.vendor		= 0x1c29,
+		.device		= 0x1112,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_fintek_setup,
+		.init		= pci_fintek_init,
+	},
+
+	/*
+	 * Default "match everything" terminator entry
+	 */
+	{
+		.vendor		= PCI_ANY_ID,
+		.device		= PCI_ANY_ID,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_default_setup,
+	}
+};
+
+static inline int quirk_id_matches(u32 quirk_id, u32 dev_id)
+{
+	return quirk_id == PCI_ANY_ID || quirk_id == dev_id;
+}
+
+static struct pci_serial_quirk *find_quirk(struct pci_dev *dev)
+{
+	struct pci_serial_quirk *quirk;
+
+	for (quirk = pci_serial_quirks; ; quirk++)
+		if (quirk_id_matches(quirk->vendor, dev->vendor) &&
+		    quirk_id_matches(quirk->device, dev->device) &&
+		    quirk_id_matches(quirk->subvendor, dev->subsystem_vendor) &&
+		    quirk_id_matches(quirk->subdevice, dev->subsystem_device))
+			break;
+	return quirk;
+}
+
+static inline int get_pci_irq(struct pci_dev *dev,
+				const struct pciserial_board *board)
+{
+	if (board->flags & FL_NOIRQ)
+		return 0;
+	else
+		return dev->irq;
+}
+
+/*
+ * This is the configuration table for all of the PCI serial boards
+ * which we support.  It is directly indexed by the pci_board_num_t enum
+ * value, which is encoded in the pci_device_id PCI probe table's
+ * driver_data member.
+ *
+ * The makeup of these names are:
+ *  pbn_bn{_bt}_n_baud{_offsetinhex}
+ *
+ *  bn		= PCI BAR number
+ *  bt		= Index using PCI BARs
+ *  n		= number of serial ports
+ *  baud	= baud rate
+ *  offsetinhex	= offset for each sequential port (in hex)
+ *
+ * This table is sorted by (in order): bn, bt, baud, offsetindex, n.
+ *
+ * Please note: in theory if n = 1, _bt infix should make no difference.
+ * ie, pbn_b0_1_115200 is the same as pbn_b0_bt_1_115200
+ */
+enum pci_board_num_t {
+	pbn_default = 0,
+
+	pbn_b0_1_115200,
+	pbn_b0_2_115200,
+	pbn_b0_4_115200,
+	pbn_b0_5_115200,
+	pbn_b0_8_115200,
+
+	pbn_b0_1_921600,
+	pbn_b0_2_921600,
+	pbn_b0_4_921600,
+
+	pbn_b0_2_1130000,
+
+	pbn_b0_4_1152000,
+
+	pbn_b0_2_1152000_200,
+	pbn_b0_4_1152000_200,
+	pbn_b0_8_1152000_200,
+
+	pbn_b0_2_1843200,
+	pbn_b0_4_1843200,
+
+	pbn_b0_2_1843200_200,
+	pbn_b0_4_1843200_200,
+	pbn_b0_8_1843200_200,
+
+	pbn_b0_1_4000000,
+
+	pbn_b0_bt_1_115200,
+	pbn_b0_bt_2_115200,
+	pbn_b0_bt_4_115200,
+	pbn_b0_bt_8_115200,
+
+	pbn_b0_bt_1_460800,
+	pbn_b0_bt_2_460800,
+	pbn_b0_bt_4_460800,
+
+	pbn_b0_bt_1_921600,
+	pbn_b0_bt_2_921600,
+	pbn_b0_bt_4_921600,
+	pbn_b0_bt_8_921600,
+
+	pbn_b1_1_115200,
+	pbn_b1_2_115200,
+	pbn_b1_4_115200,
+	pbn_b1_8_115200,
+	pbn_b1_16_115200,
+
+	pbn_b1_1_921600,
+	pbn_b1_2_921600,
+	pbn_b1_4_921600,
+	pbn_b1_8_921600,
+
+	pbn_b1_2_1250000,
+
+	pbn_b1_bt_1_115200,
+	pbn_b1_bt_2_115200,
+	pbn_b1_bt_4_115200,
+
+	pbn_b1_bt_2_921600,
+
+	pbn_b1_1_1382400,
+	pbn_b1_2_1382400,
+	pbn_b1_4_1382400,
+	pbn_b1_8_1382400,
+
+	pbn_b2_1_115200,
+	pbn_b2_2_115200,
+	pbn_b2_4_115200,
+	pbn_b2_8_115200,
+
+	pbn_b2_1_460800,
+	pbn_b2_4_460800,
+	pbn_b2_8_460800,
+	pbn_b2_16_460800,
+
+	pbn_b2_1_921600,
+	pbn_b2_4_921600,
+	pbn_b2_8_921600,
+
+	pbn_b2_8_1152000,
+
+	pbn_b2_bt_1_115200,
+	pbn_b2_bt_2_115200,
+	pbn_b2_bt_4_115200,
+
+	pbn_b2_bt_2_921600,
+	pbn_b2_bt_4_921600,
+
+	pbn_b3_2_115200,
+	pbn_b3_4_115200,
+	pbn_b3_8_115200,
+
+	pbn_b4_bt_2_921600,
+	pbn_b4_bt_4_921600,
+	pbn_b4_bt_8_921600,
+
+	/*
+	 * Board-specific versions.
+	 */
+	pbn_panacom,
+	pbn_panacom2,
+	pbn_panacom4,
+	pbn_plx_romulus,
+	pbn_endrun_2_4000000,
+	pbn_oxsemi,
+	pbn_oxsemi_1_4000000,
+	pbn_oxsemi_2_4000000,
+	pbn_oxsemi_4_4000000,
+	pbn_oxsemi_8_4000000,
+	pbn_intel_i960,
+	pbn_sgi_ioc3,
+	pbn_computone_4,
+	pbn_computone_6,
+	pbn_computone_8,
+	pbn_sbsxrsio,
+	pbn_exar_XR17C152,
+	pbn_exar_XR17C154,
+	pbn_exar_XR17C158,
+	pbn_exar_XR17V352,
+	pbn_exar_XR17V354,
+	pbn_exar_XR17V358,
+	pbn_exar_XR17V8358,
+	pbn_exar_ibm_saturn,
+	pbn_pasemi_1682M,
+	pbn_ni8430_2,
+	pbn_ni8430_4,
+	pbn_ni8430_8,
+	pbn_ni8430_16,
+	pbn_ADDIDATA_PCIe_1_3906250,
+	pbn_ADDIDATA_PCIe_2_3906250,
+	pbn_ADDIDATA_PCIe_4_3906250,
+	pbn_ADDIDATA_PCIe_8_3906250,
+	pbn_ce4100_1_115200,
+	pbn_byt,
+	pbn_pnw,
+	pbn_tng,
+	pbn_qrk,
+	pbn_omegapci,
+	pbn_NETMOS9900_2s_115200,
+	pbn_brcm_trumanage,
+	pbn_fintek_4,
+	pbn_fintek_8,
+	pbn_fintek_12,
+	pbn_wch384_4,
+};
+
+/*
+ * uart_offset - the space between channels
+ * reg_shift   - describes how the UART registers are mapped
+ *               to PCI memory by the card.
+ * For example IER register on SBS, Inc. PMC-OctPro is located at
+ * offset 0x10 from the UART base, while UART_IER is defined as 1
+ * in include/linux/serial_reg.h,
+ * see first lines of serial_in() and serial_out() in 8250.c
+*/
+
+static struct pciserial_board pci_boards[] = {
+	[pbn_default] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_1_115200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_2_115200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_4_115200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_5_115200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 5,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_8_115200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_1_921600] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_2_921600] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_4_921600] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b0_2_1130000] = {
+		.flags          = FL_BASE0,
+		.num_ports      = 2,
+		.base_baud      = 1130000,
+		.uart_offset    = 8,
+	},
+
+	[pbn_b0_4_1152000] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 1152000,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b0_2_1152000_200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 1152000,
+		.uart_offset	= 0x200,
+	},
+
+	[pbn_b0_4_1152000_200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 1152000,
+		.uart_offset	= 0x200,
+	},
+
+	[pbn_b0_8_1152000_200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 1152000,
+		.uart_offset	= 0x200,
+	},
+
+	[pbn_b0_2_1843200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 1843200,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_4_1843200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 1843200,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b0_2_1843200_200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 1843200,
+		.uart_offset	= 0x200,
+	},
+	[pbn_b0_4_1843200_200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 1843200,
+		.uart_offset	= 0x200,
+	},
+	[pbn_b0_8_1843200_200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 1843200,
+		.uart_offset	= 0x200,
+	},
+	[pbn_b0_1_4000000] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 4000000,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b0_bt_1_115200] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 1,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_bt_2_115200] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_bt_4_115200] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 4,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_bt_8_115200] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 8,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b0_bt_1_460800] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 1,
+		.base_baud	= 460800,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_bt_2_460800] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 2,
+		.base_baud	= 460800,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_bt_4_460800] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 4,
+		.base_baud	= 460800,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b0_bt_1_921600] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 1,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_bt_2_921600] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 2,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_bt_4_921600] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 4,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b0_bt_8_921600] = {
+		.flags		= FL_BASE0|FL_BASE_BARS,
+		.num_ports	= 8,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b1_1_115200] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 1,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_2_115200] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_4_115200] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 4,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_8_115200] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 8,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_16_115200] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 16,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b1_1_921600] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 1,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_2_921600] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 2,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_4_921600] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 4,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_8_921600] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 8,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_2_1250000] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 2,
+		.base_baud	= 1250000,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b1_bt_1_115200] = {
+		.flags		= FL_BASE1|FL_BASE_BARS,
+		.num_ports	= 1,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_bt_2_115200] = {
+		.flags		= FL_BASE1|FL_BASE_BARS,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_bt_4_115200] = {
+		.flags		= FL_BASE1|FL_BASE_BARS,
+		.num_ports	= 4,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b1_bt_2_921600] = {
+		.flags		= FL_BASE1|FL_BASE_BARS,
+		.num_ports	= 2,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b1_1_1382400] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 1,
+		.base_baud	= 1382400,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_2_1382400] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 2,
+		.base_baud	= 1382400,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_4_1382400] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 4,
+		.base_baud	= 1382400,
+		.uart_offset	= 8,
+	},
+	[pbn_b1_8_1382400] = {
+		.flags		= FL_BASE1,
+		.num_ports	= 8,
+		.base_baud	= 1382400,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b2_1_115200] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 1,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b2_2_115200] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b2_4_115200] = {
+		.flags          = FL_BASE2,
+		.num_ports      = 4,
+		.base_baud      = 115200,
+		.uart_offset    = 8,
+	},
+	[pbn_b2_8_115200] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 8,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b2_1_460800] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 1,
+		.base_baud	= 460800,
+		.uart_offset	= 8,
+	},
+	[pbn_b2_4_460800] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 4,
+		.base_baud	= 460800,
+		.uart_offset	= 8,
+	},
+	[pbn_b2_8_460800] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 8,
+		.base_baud	= 460800,
+		.uart_offset	= 8,
+	},
+	[pbn_b2_16_460800] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 16,
+		.base_baud	= 460800,
+		.uart_offset	= 8,
+	 },
+
+	[pbn_b2_1_921600] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 1,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b2_4_921600] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 4,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b2_8_921600] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 8,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b2_8_1152000] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 8,
+		.base_baud	= 1152000,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b2_bt_1_115200] = {
+		.flags		= FL_BASE2|FL_BASE_BARS,
+		.num_ports	= 1,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b2_bt_2_115200] = {
+		.flags		= FL_BASE2|FL_BASE_BARS,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b2_bt_4_115200] = {
+		.flags		= FL_BASE2|FL_BASE_BARS,
+		.num_ports	= 4,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b2_bt_2_921600] = {
+		.flags		= FL_BASE2|FL_BASE_BARS,
+		.num_ports	= 2,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b2_bt_4_921600] = {
+		.flags		= FL_BASE2|FL_BASE_BARS,
+		.num_ports	= 4,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b3_2_115200] = {
+		.flags		= FL_BASE3,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b3_4_115200] = {
+		.flags		= FL_BASE3,
+		.num_ports	= 4,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_b3_8_115200] = {
+		.flags		= FL_BASE3,
+		.num_ports	= 8,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+
+	[pbn_b4_bt_2_921600] = {
+		.flags		= FL_BASE4,
+		.num_ports	= 2,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b4_bt_4_921600] = {
+		.flags		= FL_BASE4,
+		.num_ports	= 4,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+	[pbn_b4_bt_8_921600] = {
+		.flags		= FL_BASE4,
+		.num_ports	= 8,
+		.base_baud	= 921600,
+		.uart_offset	= 8,
+	},
+
+	/*
+	 * Entries following this are board-specific.
+	 */
+
+	/*
+	 * Panacom - IOMEM
+	 */
+	[pbn_panacom] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 2,
+		.base_baud	= 921600,
+		.uart_offset	= 0x400,
+		.reg_shift	= 7,
+	},
+	[pbn_panacom2] = {
+		.flags		= FL_BASE2|FL_BASE_BARS,
+		.num_ports	= 2,
+		.base_baud	= 921600,
+		.uart_offset	= 0x400,
+		.reg_shift	= 7,
+	},
+	[pbn_panacom4] = {
+		.flags		= FL_BASE2|FL_BASE_BARS,
+		.num_ports	= 4,
+		.base_baud	= 921600,
+		.uart_offset	= 0x400,
+		.reg_shift	= 7,
+	},
+
+	/* I think this entry is broken - the first_offset looks wrong --rmk */
+	[pbn_plx_romulus] = {
+		.flags		= FL_BASE2,
+		.num_ports	= 4,
+		.base_baud	= 921600,
+		.uart_offset	= 8 << 2,
+		.reg_shift	= 2,
+		.first_offset	= 0x03,
+	},
+
+	/*
+	 * EndRun Technologies
+	* Uses the size of PCI Base region 0 to
+	* signal now many ports are available
+	* 2 port 952 Uart support
+	*/
+	[pbn_endrun_2_4000000] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 4000000,
+		.uart_offset	= 0x200,
+		.first_offset	= 0x1000,
+	},
+
+	/*
+	 * This board uses the size of PCI Base region 0 to
+	 * signal now many ports are available
+	 */
+	[pbn_oxsemi] = {
+		.flags		= FL_BASE0|FL_REGION_SZ_CAP,
+		.num_ports	= 32,
+		.base_baud	= 115200,
+		.uart_offset	= 8,
+	},
+	[pbn_oxsemi_1_4000000] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 4000000,
+		.uart_offset	= 0x200,
+		.first_offset	= 0x1000,
+	},
+	[pbn_oxsemi_2_4000000] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 4000000,
+		.uart_offset	= 0x200,
+		.first_offset	= 0x1000,
+	},
+	[pbn_oxsemi_4_4000000] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 4000000,
+		.uart_offset	= 0x200,
+		.first_offset	= 0x1000,
+	},
+	[pbn_oxsemi_8_4000000] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 4000000,
+		.uart_offset	= 0x200,
+		.first_offset	= 0x1000,
+	},
+
+
+	/*
+	 * EKF addition for i960 Boards form EKF with serial port.
+	 * Max 256 ports.
+	 */
+	[pbn_intel_i960] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 32,
+		.base_baud	= 921600,
+		.uart_offset	= 8 << 2,
+		.reg_shift	= 2,
+		.first_offset	= 0x10000,
+	},
+	[pbn_sgi_ioc3] = {
+		.flags		= FL_BASE0|FL_NOIRQ,
+		.num_ports	= 1,
+		.base_baud	= 458333,
+		.uart_offset	= 8,
+		.reg_shift	= 0,
+		.first_offset	= 0x20178,
+	},
+
+	/*
+	 * Computone - uses IOMEM.
+	 */
+	[pbn_computone_4] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 921600,
+		.uart_offset	= 0x40,
+		.reg_shift	= 2,
+		.first_offset	= 0x200,
+	},
+	[pbn_computone_6] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 6,
+		.base_baud	= 921600,
+		.uart_offset	= 0x40,
+		.reg_shift	= 2,
+		.first_offset	= 0x200,
+	},
+	[pbn_computone_8] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 921600,
+		.uart_offset	= 0x40,
+		.reg_shift	= 2,
+		.first_offset	= 0x200,
+	},
+	[pbn_sbsxrsio] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 460800,
+		.uart_offset	= 256,
+		.reg_shift	= 4,
+	},
+	/*
+	 * Exar Corp. XR17C15[248] Dual/Quad/Octal UART
+	 *  Only basic 16550A support.
+	 *  XR17C15[24] are not tested, but they should work.
+	 */
+	[pbn_exar_XR17C152] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 921600,
+		.uart_offset	= 0x200,
+	},
+	[pbn_exar_XR17C154] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 921600,
+		.uart_offset	= 0x200,
+	},
+	[pbn_exar_XR17C158] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 921600,
+		.uart_offset	= 0x200,
+	},
+	[pbn_exar_XR17V352] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 7812500,
+		.uart_offset	= 0x400,
+		.reg_shift	= 0,
+		.first_offset	= 0,
+	},
+	[pbn_exar_XR17V354] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 7812500,
+		.uart_offset	= 0x400,
+		.reg_shift	= 0,
+		.first_offset	= 0,
+	},
+	[pbn_exar_XR17V358] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 7812500,
+		.uart_offset	= 0x400,
+		.reg_shift	= 0,
+		.first_offset	= 0,
+	},
+	[pbn_exar_XR17V8358] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 16,
+		.base_baud	= 7812500,
+		.uart_offset	= 0x400,
+		.reg_shift	= 0,
+		.first_offset	= 0,
+	},
+	[pbn_exar_ibm_saturn] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 921600,
+		.uart_offset	= 0x200,
+	},
+
+	/*
+	 * PA Semi PWRficient PA6T-1682M on-chip UART
+	 */
+	[pbn_pasemi_1682M] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 8333333,
+	},
+	/*
+	 * National Instruments 843x
+	 */
+	[pbn_ni8430_16] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 16,
+		.base_baud	= 3686400,
+		.uart_offset	= 0x10,
+		.first_offset	= 0x800,
+	},
+	[pbn_ni8430_8] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 3686400,
+		.uart_offset	= 0x10,
+		.first_offset	= 0x800,
+	},
+	[pbn_ni8430_4] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 3686400,
+		.uart_offset	= 0x10,
+		.first_offset	= 0x800,
+	},
+	[pbn_ni8430_2] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 3686400,
+		.uart_offset	= 0x10,
+		.first_offset	= 0x800,
+	},
+	/*
+	 * ADDI-DATA GmbH PCI-Express communication cards <info@addi-data.com>
+	 */
+	[pbn_ADDIDATA_PCIe_1_3906250] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 3906250,
+		.uart_offset	= 0x200,
+		.first_offset	= 0x1000,
+	},
+	[pbn_ADDIDATA_PCIe_2_3906250] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 3906250,
+		.uart_offset	= 0x200,
+		.first_offset	= 0x1000,
+	},
+	[pbn_ADDIDATA_PCIe_4_3906250] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud	= 3906250,
+		.uart_offset	= 0x200,
+		.first_offset	= 0x1000,
+	},
+	[pbn_ADDIDATA_PCIe_8_3906250] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 3906250,
+		.uart_offset	= 0x200,
+		.first_offset	= 0x1000,
+	},
+	[pbn_ce4100_1_115200] = {
+		.flags		= FL_BASE_BARS,
+		.num_ports	= 2,
+		.base_baud	= 921600,
+		.reg_shift      = 2,
+	},
+	/*
+	 * Intel BayTrail HSUART reference clock is 44.2368 MHz at power-on,
+	 * but is overridden by byt_set_termios.
+	 */
+	[pbn_byt] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 2764800,
+		.uart_offset	= 0x80,
+		.reg_shift      = 2,
+	},
+	[pbn_pnw] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 115200,
+	},
+	[pbn_tng] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 1843200,
+	},
+	[pbn_qrk] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 2764800,
+		.reg_shift	= 2,
+	},
+	[pbn_omegapci] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 8,
+		.base_baud	= 115200,
+		.uart_offset	= 0x200,
+	},
+	[pbn_NETMOS9900_2s_115200] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 2,
+		.base_baud	= 115200,
+	},
+	[pbn_brcm_trumanage] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.reg_shift	= 2,
+		.base_baud	= 115200,
+	},
+	[pbn_fintek_4] = {
+		.num_ports	= 4,
+		.uart_offset	= 8,
+		.base_baud	= 115200,
+		.first_offset	= 0x40,
+	},
+	[pbn_fintek_8] = {
+		.num_ports	= 8,
+		.uart_offset	= 8,
+		.base_baud	= 115200,
+		.first_offset	= 0x40,
+	},
+	[pbn_fintek_12] = {
+		.num_ports	= 12,
+		.uart_offset	= 8,
+		.base_baud	= 115200,
+		.first_offset	= 0x40,
+	},
+
+	[pbn_wch384_4] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 4,
+		.base_baud      = 115200,
+		.uart_offset    = 8,
+		.first_offset   = 0xC0,
+	},
+};
+
+static const struct pci_device_id blacklist[] = {
+	/* softmodems */
+	{ PCI_VDEVICE(AL, 0x5457), }, /* ALi Corporation M5457 AC'97 Modem */
+	{ PCI_VDEVICE(MOTOROLA, 0x3052), }, /* Motorola Si3052-based modem */
+	{ PCI_DEVICE(0x1543, 0x3052), }, /* Si3052-based modem, default IDs */
+
+	/* multi-io cards handled by parport_serial */
+	{ PCI_DEVICE(0x4348, 0x7053), }, /* WCH CH353 2S1P */
+	{ PCI_DEVICE(0x4348, 0x5053), }, /* WCH CH353 1S1P */
+	{ PCI_DEVICE(0x1c00, 0x3250), }, /* WCH CH382 2S1P */
+	{ PCI_DEVICE(0x1c00, 0x3470), }, /* WCH CH384 4S */
+};
+
+/*
+ * Given a complete unknown PCI device, try to use some heuristics to
+ * guess what the configuration might be, based on the pitiful PCI
+ * serial specs.  Returns 0 on success, 1 on failure.
+ */
+static int
+serial_pci_guess_board(struct pci_dev *dev, struct pciserial_board *board)
+{
+	const struct pci_device_id *bldev;
+	int num_iomem, num_port, first_port = -1, i;
+
+	/*
+	 * If it is not a communications device or the programming
+	 * interface is greater than 6, give up.
+	 *
+	 * (Should we try to make guesses for multiport serial devices
+	 * later?)
+	 */
+	if ((((dev->class >> 8) != PCI_CLASS_COMMUNICATION_SERIAL) &&
+	     ((dev->class >> 8) != PCI_CLASS_COMMUNICATION_MODEM)) ||
+	    (dev->class & 0xff) > 6)
+		return -ENODEV;
+
+	/*
+	 * Do not access blacklisted devices that are known not to
+	 * feature serial ports or are handled by other modules.
+	 */
+	for (bldev = blacklist;
+	     bldev < blacklist + ARRAY_SIZE(blacklist);
+	     bldev++) {
+		if (dev->vendor == bldev->vendor &&
+		    dev->device == bldev->device)
+			return -ENODEV;
+	}
+
+	num_iomem = num_port = 0;
+	for (i = 0; i < PCI_NUM_BAR_RESOURCES; i++) {
+		if (pci_resource_flags(dev, i) & IORESOURCE_IO) {
+			num_port++;
+			if (first_port == -1)
+				first_port = i;
+		}
+		if (pci_resource_flags(dev, i) & IORESOURCE_MEM)
+			num_iomem++;
+	}
+
+	/*
+	 * If there is 1 or 0 iomem regions, and exactly one port,
+	 * use it.  We guess the number of ports based on the IO
+	 * region size.
+	 */
+	if (num_iomem <= 1 && num_port == 1) {
+		board->flags = first_port;
+		board->num_ports = pci_resource_len(dev, first_port) / 8;
+		return 0;
+	}
+
+	/*
+	 * Now guess if we've got a board which indexes by BARs.
+	 * Each IO BAR should be 8 bytes, and they should follow
+	 * consecutively.
+	 */
+	first_port = -1;
+	num_port = 0;
+	for (i = 0; i < PCI_NUM_BAR_RESOURCES; i++) {
+		if (pci_resource_flags(dev, i) & IORESOURCE_IO &&
+		    pci_resource_len(dev, i) == 8 &&
+		    (first_port == -1 || (first_port + num_port) == i)) {
+			num_port++;
+			if (first_port == -1)
+				first_port = i;
+		}
+	}
+
+	if (num_port > 1) {
+		board->flags = first_port | FL_BASE_BARS;
+		board->num_ports = num_port;
+		return 0;
+	}
+
+	return -ENODEV;
+}
+
+static inline int
+serial_pci_matches(const struct pciserial_board *board,
+		   const struct pciserial_board *guessed)
+{
+	return
+	    board->num_ports == guessed->num_ports &&
+	    board->base_baud == guessed->base_baud &&
+	    board->uart_offset == guessed->uart_offset &&
+	    board->reg_shift == guessed->reg_shift &&
+	    board->first_offset == guessed->first_offset;
+}
+
+struct serial_private *
+pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board)
+{
+	struct uart_8250_port uart;
+	struct serial_private *priv;
+	struct pci_serial_quirk *quirk;
+	int rc, nr_ports, i;
+
+	nr_ports = board->num_ports;
+
+	/*
+	 * Find an init and setup quirks.
+	 */
+	quirk = find_quirk(dev);
+
+	/*
+	 * Run the new-style initialization function.
+	 * The initialization function returns:
+	 *  <0  - error
+	 *   0  - use board->num_ports
+	 *  >0  - number of ports
+	 */
+	if (quirk->init) {
+		rc = quirk->init(dev);
+		if (rc < 0) {
+			priv = ERR_PTR(rc);
+			goto err_out;
+		}
+		if (rc)
+			nr_ports = rc;
+	}
+
+	priv = kzalloc(sizeof(struct serial_private) +
+		       sizeof(unsigned int) * nr_ports,
+		       GFP_KERNEL);
+	if (!priv) {
+		priv = ERR_PTR(-ENOMEM);
+		goto err_deinit;
+	}
+
+	priv->dev = dev;
+	priv->quirk = quirk;
+
+	memset(&uart, 0, sizeof(uart));
+	uart.port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
+	uart.port.uartclk = board->base_baud * 16;
+	uart.port.irq = get_pci_irq(dev, board);
+	uart.port.dev = &dev->dev;
+
+	for (i = 0; i < nr_ports; i++) {
+		if (quirk->setup(priv, board, &uart, i))
+			break;
+
+		dev_dbg(&dev->dev, "Setup PCI port: port %lx, irq %d, type %d\n",
+			uart.port.iobase, uart.port.irq, uart.port.iotype);
+
+		priv->line[i] = serial8250_register_8250_port(&uart);
+		if (priv->line[i] < 0) {
+			dev_err(&dev->dev,
+				"Couldn't register serial port %lx, irq %d, type %d, error %d\n",
+				uart.port.iobase, uart.port.irq,
+				uart.port.iotype, priv->line[i]);
+			break;
+		}
+	}
+	priv->nr = i;
+	return priv;
+
+err_deinit:
+	if (quirk->exit)
+		quirk->exit(dev);
+err_out:
+	return priv;
+}
+EXPORT_SYMBOL_GPL(pciserial_init_ports);
+
+void pciserial_remove_ports(struct serial_private *priv)
+{
+	struct pci_serial_quirk *quirk;
+	int i;
+
+	for (i = 0; i < priv->nr; i++)
+		serial8250_unregister_port(priv->line[i]);
+
+	for (i = 0; i < PCI_NUM_BAR_RESOURCES; i++) {
+		if (priv->remapped_bar[i])
+			iounmap(priv->remapped_bar[i]);
+		priv->remapped_bar[i] = NULL;
+	}
+
+	/*
+	 * Find the exit quirks.
+	 */
+	quirk = find_quirk(priv->dev);
+	if (quirk->exit)
+		quirk->exit(priv->dev);
+
+	kfree(priv);
+}
+EXPORT_SYMBOL_GPL(pciserial_remove_ports);
+
+void pciserial_suspend_ports(struct serial_private *priv)
+{
+	int i;
+
+	for (i = 0; i < priv->nr; i++)
+		if (priv->line[i] >= 0)
+			serial8250_suspend_port(priv->line[i]);
+
+	/*
+	 * Ensure that every init quirk is properly torn down
+	 */
+	if (priv->quirk->exit)
+		priv->quirk->exit(priv->dev);
+}
+EXPORT_SYMBOL_GPL(pciserial_suspend_ports);
+
+void pciserial_resume_ports(struct serial_private *priv)
+{
+	int i;
+
+	/*
+	 * Ensure that the board is correctly configured.
+	 */
+	if (priv->quirk->init)
+		priv->quirk->init(priv->dev);
+
+	for (i = 0; i < priv->nr; i++)
+		if (priv->line[i] >= 0)
+			serial8250_resume_port(priv->line[i]);
+}
+EXPORT_SYMBOL_GPL(pciserial_resume_ports);
+
+/*
+ * Probe one serial board.  Unfortunately, there is no rhyme nor reason
+ * to the arrangement of serial ports on a PCI card.
+ */
+static int
+pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
+{
+	struct pci_serial_quirk *quirk;
+	struct serial_private *priv;
+	const struct pciserial_board *board;
+	struct pciserial_board tmp;
+	int rc;
+
+	quirk = find_quirk(dev);
+	if (quirk->probe) {
+		rc = quirk->probe(dev);
+		if (rc)
+			return rc;
+	}
+
+	if (ent->driver_data >= ARRAY_SIZE(pci_boards)) {
+		dev_err(&dev->dev, "invalid driver_data: %ld\n",
+			ent->driver_data);
+		return -EINVAL;
+	}
+
+	board = &pci_boards[ent->driver_data];
+
+	rc = pci_enable_device(dev);
+	pci_save_state(dev);
+	if (rc)
+		return rc;
+
+	if (ent->driver_data == pbn_default) {
+		/*
+		 * Use a copy of the pci_board entry for this;
+		 * avoid changing entries in the table.
+		 */
+		memcpy(&tmp, board, sizeof(struct pciserial_board));
+		board = &tmp;
+
+		/*
+		 * We matched one of our class entries.  Try to
+		 * determine the parameters of this board.
+		 */
+		rc = serial_pci_guess_board(dev, &tmp);
+		if (rc)
+			goto disable;
+	} else {
+		/*
+		 * We matched an explicit entry.  If we are able to
+		 * detect this boards settings with our heuristic,
+		 * then we no longer need this entry.
+		 */
+		memcpy(&tmp, &pci_boards[pbn_default],
+		       sizeof(struct pciserial_board));
+		rc = serial_pci_guess_board(dev, &tmp);
+		if (rc == 0 && serial_pci_matches(board, &tmp))
+			moan_device("Redundant entry in serial pci_table.",
+				    dev);
+	}
+
+	priv = pciserial_init_ports(dev, board);
+	if (!IS_ERR(priv)) {
+		pci_set_drvdata(dev, priv);
+		return 0;
+	}
+
+	rc = PTR_ERR(priv);
+
+ disable:
+	pci_disable_device(dev);
+	return rc;
+}
+
+static void pciserial_remove_one(struct pci_dev *dev)
+{
+	struct serial_private *priv = pci_get_drvdata(dev);
+
+	pciserial_remove_ports(priv);
+
+	pci_disable_device(dev);
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int pciserial_suspend_one(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct serial_private *priv = pci_get_drvdata(pdev);
+
+	if (priv)
+		pciserial_suspend_ports(priv);
+
+	return 0;
+}
+
+static int pciserial_resume_one(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct serial_private *priv = pci_get_drvdata(pdev);
+	int err;
+
+	if (priv) {
+		/*
+		 * The device may have been disabled.  Re-enable it.
+		 */
+		err = pci_enable_device(pdev);
+		/* FIXME: We cannot simply error out here */
+		if (err)
+			dev_err(dev, "Unable to re-enable ports, trying to continue.\n");
+		pciserial_resume_ports(priv);
+	}
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(pciserial_pm_ops, pciserial_suspend_one,
+			 pciserial_resume_one);
+
+static struct pci_device_id serial_pci_tbl[] = {
+	/* Advantech use PCI_DEVICE_ID_ADVANTECH_PCI3620 (0x3620) as 'PCI_SUBVENDOR_ID' */
+	{	PCI_VENDOR_ID_ADVANTECH, PCI_DEVICE_ID_ADVANTECH_PCI3620,
+		PCI_DEVICE_ID_ADVANTECH_PCI3620, 0x0001, 0, 0,
+		pbn_b2_8_921600 },
+	/* Advantech also use 0x3618 and 0xf618 */
+	{	PCI_VENDOR_ID_ADVANTECH, PCI_DEVICE_ID_ADVANTECH_PCI3618,
+		PCI_DEVICE_ID_ADVANTECH_PCI3618, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_ADVANTECH, PCI_DEVICE_ID_ADVANTECH_PCIf618,
+		PCI_DEVICE_ID_ADVANTECH_PCI3618, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V960,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH8_232, 0, 0,
+		pbn_b1_8_1382400 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V960,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH4_232, 0, 0,
+		pbn_b1_4_1382400 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V960,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH2_232, 0, 0,
+		pbn_b1_2_1382400 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH8_232, 0, 0,
+		pbn_b1_8_1382400 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH4_232, 0, 0,
+		pbn_b1_4_1382400 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH2_232, 0, 0,
+		pbn_b1_2_1382400 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH8_485, 0, 0,
+		pbn_b1_8_921600 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH8_485_4_4, 0, 0,
+		pbn_b1_8_921600 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH4_485, 0, 0,
+		pbn_b1_4_921600 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH4_485_2_2, 0, 0,
+		pbn_b1_4_921600 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH2_485, 0, 0,
+		pbn_b1_2_921600 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH8_485_2_6, 0, 0,
+		pbn_b1_8_921600 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH081101V1, 0, 0,
+		pbn_b1_8_921600 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH041101V1, 0, 0,
+		pbn_b1_4_921600 },
+	{	PCI_VENDOR_ID_V3, PCI_DEVICE_ID_V3_V351,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_BH2_20MHZ, 0, 0,
+		pbn_b1_2_1250000 },
+	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI954,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_TITAN_2, 0, 0,
+		pbn_b0_2_1843200 },
+	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI954,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_TITAN_4, 0, 0,
+		pbn_b0_4_1843200 },
+	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI954,
+		PCI_VENDOR_ID_AFAVLAB,
+		PCI_SUBDEVICE_ID_AFAVLAB_P061, 0, 0,
+		pbn_b0_4_1152000 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C152,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_232, 0, 0,
+		pbn_b0_2_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C154,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_232, 0, 0,
+		pbn_b0_4_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C158,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_232, 0, 0,
+		pbn_b0_8_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C152,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_1_1, 0, 0,
+		pbn_b0_2_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C154,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_2, 0, 0,
+		pbn_b0_4_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C158,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_4, 0, 0,
+		pbn_b0_8_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C152,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2, 0, 0,
+		pbn_b0_2_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C154,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4, 0, 0,
+		pbn_b0_4_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C158,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8, 0, 0,
+		pbn_b0_8_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C152,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_2_485, 0, 0,
+		pbn_b0_2_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C154,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_4_485, 0, 0,
+		pbn_b0_4_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C158,
+		PCI_SUBVENDOR_ID_CONNECT_TECH,
+		PCI_SUBDEVICE_ID_CONNECT_TECH_PCI_UART_8_485, 0, 0,
+		pbn_b0_8_1843200_200 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C152,
+		PCI_VENDOR_ID_IBM, PCI_SUBDEVICE_ID_IBM_SATURN_SERIAL_ONE_PORT,
+		0, 0, pbn_exar_ibm_saturn },
+
+	{	PCI_VENDOR_ID_SEALEVEL, PCI_DEVICE_ID_SEALEVEL_U530,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_1_115200 },
+	{	PCI_VENDOR_ID_SEALEVEL, PCI_DEVICE_ID_SEALEVEL_UCOMM2,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_2_115200 },
+	{	PCI_VENDOR_ID_SEALEVEL, PCI_DEVICE_ID_SEALEVEL_UCOMM422,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_4_115200 },
+	{	PCI_VENDOR_ID_SEALEVEL, PCI_DEVICE_ID_SEALEVEL_UCOMM232,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_2_115200 },
+	{	PCI_VENDOR_ID_SEALEVEL, PCI_DEVICE_ID_SEALEVEL_COMM4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_4_115200 },
+	{	PCI_VENDOR_ID_SEALEVEL, PCI_DEVICE_ID_SEALEVEL_COMM8,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_8_115200 },
+	{	PCI_VENDOR_ID_SEALEVEL, PCI_DEVICE_ID_SEALEVEL_7803,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_8_460800 },
+	{	PCI_VENDOR_ID_SEALEVEL, PCI_DEVICE_ID_SEALEVEL_UCOMM8,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_8_115200 },
+
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_GTEK_SERIAL2,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_2_115200 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_SPCOM200,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_2_921600 },
+	/*
+	 * VScom SPCOM800, from sl@s.pl
+	 */
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_SPCOM800,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_8_921600 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_1077,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_4_921600 },
+	/* Unknown card - subdevice 0x1584 */
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_VENDOR_ID_PLX,
+		PCI_SUBDEVICE_ID_UNKNOWN_0x1584, 0, 0,
+		pbn_b2_4_115200 },
+	/* Unknown card - subdevice 0x1588 */
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_VENDOR_ID_PLX,
+		PCI_SUBDEVICE_ID_UNKNOWN_0x1588, 0, 0,
+		pbn_b2_8_115200 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_SUBVENDOR_ID_KEYSPAN,
+		PCI_SUBDEVICE_ID_KEYSPAN_SX2, 0, 0,
+		pbn_panacom },
+	{	PCI_VENDOR_ID_PANACOM, PCI_DEVICE_ID_PANACOM_QUADMODEM,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_panacom4 },
+	{	PCI_VENDOR_ID_PANACOM, PCI_DEVICE_ID_PANACOM_DUALMODEM,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_panacom2 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030,
+		PCI_VENDOR_ID_ESDGMBH,
+		PCI_DEVICE_ID_ESDGMBH_CPCIASIO4, 0, 0,
+		pbn_b2_4_115200 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_SUBVENDOR_ID_CHASE_PCIFAST,
+		PCI_SUBDEVICE_ID_CHASE_PCIFAST4, 0, 0,
+		pbn_b2_4_460800 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_SUBVENDOR_ID_CHASE_PCIFAST,
+		PCI_SUBDEVICE_ID_CHASE_PCIFAST8, 0, 0,
+		pbn_b2_8_460800 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_SUBVENDOR_ID_CHASE_PCIFAST,
+		PCI_SUBDEVICE_ID_CHASE_PCIFAST16, 0, 0,
+		pbn_b2_16_460800 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_SUBVENDOR_ID_CHASE_PCIFAST,
+		PCI_SUBDEVICE_ID_CHASE_PCIFAST16FMC, 0, 0,
+		pbn_b2_16_460800 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_SUBVENDOR_ID_CHASE_PCIRAS,
+		PCI_SUBDEVICE_ID_CHASE_PCIRAS4, 0, 0,
+		pbn_b2_4_460800 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_SUBVENDOR_ID_CHASE_PCIRAS,
+		PCI_SUBDEVICE_ID_CHASE_PCIRAS8, 0, 0,
+		pbn_b2_8_460800 },
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9050,
+		PCI_SUBVENDOR_ID_EXSYS,
+		PCI_SUBDEVICE_ID_EXSYS_4055, 0, 0,
+		pbn_b2_4_115200 },
+	/*
+	 * Megawolf Romulus PCI Serial Card, from Mike Hudson
+	 * (Exoray@isys.ca)
+	 */
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_ROMULUS,
+		0x10b5, 0x106a, 0, 0,
+		pbn_plx_romulus },
+	/*
+	* EndRun Technologies. PCI express device range.
+	*    EndRun PTP/1588 has 2 Native UARTs.
+	*/
+	{	PCI_VENDOR_ID_ENDRUN, PCI_DEVICE_ID_ENDRUN_1588,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_endrun_2_4000000 },
+	/*
+	 * Quatech cards. These actually have configurable clocks but for
+	 * now we just use the default.
+	 *
+	 * 100 series are RS232, 200 series RS422,
+	 */
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_QSC100,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_4_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_DSC100,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_2_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_DSC100E,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_2_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_DSC200,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_2_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_DSC200E,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_2_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_QSC200,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_4_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_ESC100D,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_8_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_ESC100M,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_8_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_QSCP100,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_4_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_DSCP100,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_2_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_QSCP200,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_4_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_DSCP200,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_2_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_QSCLP100,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_4_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_DSCLP100,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_2_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_SSCLP100,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_1_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_QSCLP200,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_4_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_DSCLP200,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_2_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_SSCLP200,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_1_115200 },
+	{	PCI_VENDOR_ID_QUATECH, PCI_DEVICE_ID_QUATECH_ESCLP100,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_8_115200 },
+
+	{	PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_OXSEMI_16PCI954,
+		PCI_VENDOR_ID_SPECIALIX, PCI_SUBDEVICE_ID_SPECIALIX_SPEED4,
+		0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI954,
+		PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_QUARTET_SERIAL,
+		0, 0,
+		pbn_b0_4_1152000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0x9505,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_921600 },
+
+		/*
+		 * The below card is a little controversial since it is the
+		 * subject of a PCI vendor/device ID clash.  (See
+		 * www.ussg.iu.edu/hypermail/linux/kernel/0303.1/0516.html).
+		 * For now just used the hex ID 0x950a.
+		 */
+	{	PCI_VENDOR_ID_OXSEMI, 0x950a,
+		PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_DUAL_00,
+		0, 0, pbn_b0_2_115200 },
+	{	PCI_VENDOR_ID_OXSEMI, 0x950a,
+		PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_DUAL_30,
+		0, 0, pbn_b0_2_115200 },
+	{	PCI_VENDOR_ID_OXSEMI, 0x950a,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_2_1130000 },
+	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_C950,
+		PCI_VENDOR_ID_OXSEMI, PCI_SUBDEVICE_ID_OXSEMI_C950, 0, 0,
+		pbn_b0_1_921600 },
+	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI954,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_115200 },
+	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI952,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_921600 },
+	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI958,
+		PCI_ANY_ID , PCI_ANY_ID, 0, 0,
+		pbn_b2_8_1152000 },
+
+	/*
+	 * Oxford Semiconductor Inc. Tornado PCI express device range.
+	 */
+	{	PCI_VENDOR_ID_OXSEMI, 0xc101,    /* OXPCIe952 1 Legacy UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc105,    /* OXPCIe952 1 Legacy UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc11b,    /* OXPCIe952 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc11f,    /* OXPCIe952 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc120,    /* OXPCIe952 1 Legacy UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc124,    /* OXPCIe952 1 Legacy UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc138,    /* OXPCIe952 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc13d,    /* OXPCIe952 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc140,    /* OXPCIe952 1 Legacy UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc141,    /* OXPCIe952 1 Legacy UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc144,    /* OXPCIe952 1 Legacy UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc145,    /* OXPCIe952 1 Legacy UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc158,    /* OXPCIe952 2 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_2_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc15d,    /* OXPCIe952 2 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_2_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc208,    /* OXPCIe954 4 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_4_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc20d,    /* OXPCIe954 4 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_4_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc308,    /* OXPCIe958 8 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_8_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc30d,    /* OXPCIe958 8 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_8_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc40b,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc40f,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc41b,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc41f,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc42b,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc42f,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc43b,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc43f,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc44b,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc44f,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc45b,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc45f,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc46b,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc46f,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc47b,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc47f,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc48b,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc48f,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc49b,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc49f,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc4ab,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc4af,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc4bb,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc4bf,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc4cb,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_OXSEMI, 0xc4cf,    /* OXPCIe200 1 Native UART */
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	/*
+	 * Mainpine Inc. IQ Express "Rev3" utilizing OxSemi Tornado
+	 */
+	{	PCI_VENDOR_ID_MAINPINE, 0x4000,	/* IQ Express 1 Port V.34 Super-G3 Fax */
+		PCI_VENDOR_ID_MAINPINE, 0x4001, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_MAINPINE, 0x4000,	/* IQ Express 2 Port V.34 Super-G3 Fax */
+		PCI_VENDOR_ID_MAINPINE, 0x4002, 0, 0,
+		pbn_oxsemi_2_4000000 },
+	{	PCI_VENDOR_ID_MAINPINE, 0x4000,	/* IQ Express 4 Port V.34 Super-G3 Fax */
+		PCI_VENDOR_ID_MAINPINE, 0x4004, 0, 0,
+		pbn_oxsemi_4_4000000 },
+	{	PCI_VENDOR_ID_MAINPINE, 0x4000,	/* IQ Express 8 Port V.34 Super-G3 Fax */
+		PCI_VENDOR_ID_MAINPINE, 0x4008, 0, 0,
+		pbn_oxsemi_8_4000000 },
+
+	/*
+	 * Digi/IBM PCIe 2-port Async EIA-232 Adapter utilizing OxSemi Tornado
+	 */
+	{	PCI_VENDOR_ID_DIGI, PCIE_DEVICE_ID_NEO_2_OX_IBM,
+		PCI_SUBVENDOR_ID_IBM, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_2_4000000 },
+
+	/*
+	 * SBS Technologies, Inc. P-Octal and PMC-OCTPRO cards,
+	 * from skokodyn@yahoo.com
+	 */
+	{	PCI_VENDOR_ID_SBSMODULARIO, PCI_DEVICE_ID_OCTPRO,
+		PCI_SUBVENDOR_ID_SBSMODULARIO, PCI_SUBDEVICE_ID_OCTPRO232, 0, 0,
+		pbn_sbsxrsio },
+	{	PCI_VENDOR_ID_SBSMODULARIO, PCI_DEVICE_ID_OCTPRO,
+		PCI_SUBVENDOR_ID_SBSMODULARIO, PCI_SUBDEVICE_ID_OCTPRO422, 0, 0,
+		pbn_sbsxrsio },
+	{	PCI_VENDOR_ID_SBSMODULARIO, PCI_DEVICE_ID_OCTPRO,
+		PCI_SUBVENDOR_ID_SBSMODULARIO, PCI_SUBDEVICE_ID_POCTAL232, 0, 0,
+		pbn_sbsxrsio },
+	{	PCI_VENDOR_ID_SBSMODULARIO, PCI_DEVICE_ID_OCTPRO,
+		PCI_SUBVENDOR_ID_SBSMODULARIO, PCI_SUBDEVICE_ID_POCTAL422, 0, 0,
+		pbn_sbsxrsio },
+
+	/*
+	 * Digitan DS560-558, from jimd@esoft.com
+	 */
+	{	PCI_VENDOR_ID_ATT, PCI_DEVICE_ID_ATT_VENUS_MODEM,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_1_115200 },
+
+	/*
+	 * Titan Electronic cards
+	 *  The 400L and 800L have a custom setup quirk.
+	 */
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_100,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_200,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_2_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_400,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800B,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_100L,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_1_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_200L,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_bt_2_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_400L,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800L,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_8_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_200I,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b4_bt_2_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_400I,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b4_bt_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800I,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b4_bt_8_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_400EH,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800EH,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800EHB,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_100E,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_1_4000000 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_200E,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_2_4000000 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_400E,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_4_4000000 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800E,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_8_4000000 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_200EI,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_2_4000000 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_200EISI,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi_2_4000000 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_200V3,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_400V3,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_410V3,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800V3,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800V3B,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S_10x_550,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_1_460800 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S_10x_650,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_1_460800 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S_10x_850,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_1_460800 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S_10x_550,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_2_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S_10x_650,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_2_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S_10x_850,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_2_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_4S_10x_550,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_4_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_4S_10x_650,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_4_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_4S_10x_850,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_4_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S_20x_550,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S_20x_650,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S_20x_850,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S_20x_550,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S_20x_650,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S_20x_850,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_4S_20x_550,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_4_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_4S_20x_650,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_4_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_4S_20x_850,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_4_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_8S_20x_550,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_8_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_8S_20x_650,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_8_921600 },
+	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_8S_20x_850,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_8_921600 },
+
+	/*
+	 * Computone devices submitted by Doug McNash dmcnash@computone.com
+	 */
+	{	PCI_VENDOR_ID_COMPUTONE, PCI_DEVICE_ID_COMPUTONE_PG,
+		PCI_SUBVENDOR_ID_COMPUTONE, PCI_SUBDEVICE_ID_COMPUTONE_PG4,
+		0, 0, pbn_computone_4 },
+	{	PCI_VENDOR_ID_COMPUTONE, PCI_DEVICE_ID_COMPUTONE_PG,
+		PCI_SUBVENDOR_ID_COMPUTONE, PCI_SUBDEVICE_ID_COMPUTONE_PG8,
+		0, 0, pbn_computone_8 },
+	{	PCI_VENDOR_ID_COMPUTONE, PCI_DEVICE_ID_COMPUTONE_PG,
+		PCI_SUBVENDOR_ID_COMPUTONE, PCI_SUBDEVICE_ID_COMPUTONE_PG6,
+		0, 0, pbn_computone_6 },
+
+	{	PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI95N,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_oxsemi },
+	{	PCI_VENDOR_ID_TIMEDIA, PCI_DEVICE_ID_TIMEDIA_1889,
+		PCI_VENDOR_ID_TIMEDIA, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_1_921600 },
+
+	/*
+	 * SUNIX (TIMEDIA)
+	 */
+	{	PCI_VENDOR_ID_SUNIX, PCI_DEVICE_ID_SUNIX_1999,
+		PCI_VENDOR_ID_SUNIX, PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xffff00,
+		pbn_b0_bt_1_921600 },
+
+	{	PCI_VENDOR_ID_SUNIX, PCI_DEVICE_ID_SUNIX_1999,
+		PCI_VENDOR_ID_SUNIX, PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_MULTISERIAL << 8, 0xffff00,
+		pbn_b0_bt_1_921600 },
+
+	/*
+	 * AFAVLAB serial card, from Harald Welte <laforge@gnumonks.org>
+	 */
+	{	PCI_VENDOR_ID_AFAVLAB, PCI_DEVICE_ID_AFAVLAB_P028,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_8_115200 },
+	{	PCI_VENDOR_ID_AFAVLAB, PCI_DEVICE_ID_AFAVLAB_P030,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_8_115200 },
+
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_DSERIAL,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_115200 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_QUATRO_A,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_115200 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_QUATRO_B,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_115200 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_QUATTRO_A,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_115200 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_QUATTRO_B,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_115200 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_OCTO_A,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_4_460800 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_OCTO_B,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_4_460800 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_PORT_PLUS,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_460800 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_QUAD_A,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_460800 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_QUAD_B,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_2_460800 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_SSERIAL,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_1_115200 },
+	{	PCI_VENDOR_ID_LAVA, PCI_DEVICE_ID_LAVA_PORT_650,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_bt_1_460800 },
+
+	/*
+	 * Korenix Jetcard F0/F1 cards (JC1204, JC1208, JC1404, JC1408).
+	 * Cards are identified by their subsystem vendor IDs, which
+	 * (in hex) match the model number.
+	 *
+	 * Note that JC140x are RS422/485 cards which require ox950
+	 * ACR = 0x10, and as such are not currently fully supported.
+	 */
+	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF0,
+		0x1204, 0x0004, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF0,
+		0x1208, 0x0004, 0, 0,
+		pbn_b0_4_921600 },
+/*	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF0,
+		0x1402, 0x0002, 0, 0,
+		pbn_b0_2_921600 }, */
+/*	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF0,
+		0x1404, 0x0004, 0, 0,
+		pbn_b0_4_921600 }, */
+	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF1,
+		0x1208, 0x0004, 0, 0,
+		pbn_b0_4_921600 },
+
+	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF2,
+		0x1204, 0x0004, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF2,
+		0x1208, 0x0004, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_KORENIX, PCI_DEVICE_ID_KORENIX_JETCARDF3,
+		0x1208, 0x0004, 0, 0,
+		pbn_b0_4_921600 },
+	/*
+	 * Dell Remote Access Card 4 - Tim_T_Murphy@Dell.com
+	 */
+	{	PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_RAC4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_1_1382400 },
+
+	/*
+	 * Dell Remote Access Card III - Tim_T_Murphy@Dell.com
+	 */
+	{	PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_RACIII,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_1_1382400 },
+
+	/*
+	 * RAStel 2 port modem, gerg@moreton.com.au
+	 */
+	{	PCI_VENDOR_ID_MORETON, PCI_DEVICE_ID_RASTEL_2PORT,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_bt_2_115200 },
+
+	/*
+	 * EKF addition for i960 Boards form EKF with serial port
+	 */
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80960_RP,
+		0xE4BF, PCI_ANY_ID, 0, 0,
+		pbn_intel_i960 },
+
+	/*
+	 * Xircom Cardbus/Ethernet combos
+	 */
+	{	PCI_VENDOR_ID_XIRCOM, PCI_DEVICE_ID_XIRCOM_X3201_MDM,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_115200 },
+	/*
+	 * Xircom RBM56G cardbus modem - Dirk Arnold (temp entry)
+	 */
+	{	PCI_VENDOR_ID_XIRCOM, PCI_DEVICE_ID_XIRCOM_RBM56G,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_115200 },
+
+	/*
+	 * Untested PCI modems, sent in from various folks...
+	 */
+
+	/*
+	 * Elsa Model 56K PCI Modem, from Andreas Rath <arh@01019freenet.de>
+	 */
+	{	PCI_VENDOR_ID_ROCKWELL, 0x1004,
+		0x1048, 0x1500, 0, 0,
+		pbn_b1_1_115200 },
+
+	{	PCI_VENDOR_ID_SGI, PCI_DEVICE_ID_SGI_IOC3,
+		0xFF00, 0, 0, 0,
+		pbn_sgi_ioc3 },
+
+	/*
+	 * HP Diva card
+	 */
+	{	PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA,
+		PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA_RMP3, 0, 0,
+		pbn_b1_1_115200 },
+	{	PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_5_115200 },
+	{	PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA_AUX,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_1_115200 },
+
+	{	PCI_VENDOR_ID_DCI, PCI_DEVICE_ID_DCI_PCCOM2,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b3_2_115200 },
+	{	PCI_VENDOR_ID_DCI, PCI_DEVICE_ID_DCI_PCCOM4,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b3_4_115200 },
+	{	PCI_VENDOR_ID_DCI, PCI_DEVICE_ID_DCI_PCCOM8,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b3_8_115200 },
+
+	/*
+	 * Exar Corp. XR17C15[248] Dual/Quad/Octal UART
+	 */
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C152,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17C152 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C154,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17C154 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17C158,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17C158 },
+	/*
+	 * Exar Corp. XR17V[48]35[248] Dual/Quad/Octal/Hexa PCIe UARTs
+	 */
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17V352,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17V352 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17V354,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17V354 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17V358,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17V358 },
+	{	PCI_VENDOR_ID_EXAR, PCI_DEVICE_ID_EXAR_XR17V8358,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17V8358 },
+	/*
+	 * Topic TP560 Data/Fax/Voice 56k modem (reported by Evan Clarke)
+	 */
+	{	PCI_VENDOR_ID_TOPIC, PCI_DEVICE_ID_TOPIC_TP560,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_1_115200 },
+	/*
+	 * ITE
+	 */
+	{	PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8872,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0,
+		pbn_b1_bt_1_115200 },
+
+	/*
+	 * IntaShield IS-200
+	 */
+	{	PCI_VENDOR_ID_INTASHIELD, PCI_DEVICE_ID_INTASHIELD_IS200,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,	/* 135a.0811 */
+		pbn_b2_2_115200 },
+	/*
+	 * IntaShield IS-400
+	 */
+	{	PCI_VENDOR_ID_INTASHIELD, PCI_DEVICE_ID_INTASHIELD_IS400,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,    /* 135a.0dc0 */
+		pbn_b2_4_115200 },
+	/*
+	 * Perle PCI-RAS cards
+	 */
+	{       PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030,
+		PCI_SUBVENDOR_ID_PERLE, PCI_SUBDEVICE_ID_PCI_RAS4,
+		0, 0, pbn_b2_4_921600 },
+	{       PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_9030,
+		PCI_SUBVENDOR_ID_PERLE, PCI_SUBDEVICE_ID_PCI_RAS8,
+		0, 0, pbn_b2_8_921600 },
+
+	/*
+	 * Mainpine series cards: Fairly standard layout but fools
+	 * parts of the autodetect in some cases and uses otherwise
+	 * unmatched communications subclasses in the PCI Express case
+	 */
+
+	{	/* RockForceDUO */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x0200,
+		0, 0, pbn_b0_2_115200 },
+	{	/* RockForceQUATRO */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x0300,
+		0, 0, pbn_b0_4_115200 },
+	{	/* RockForceDUO+ */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x0400,
+		0, 0, pbn_b0_2_115200 },
+	{	/* RockForceQUATRO+ */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x0500,
+		0, 0, pbn_b0_4_115200 },
+	{	/* RockForce+ */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x0600,
+		0, 0, pbn_b0_2_115200 },
+	{	/* RockForce+ */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x0700,
+		0, 0, pbn_b0_4_115200 },
+	{	/* RockForceOCTO+ */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x0800,
+		0, 0, pbn_b0_8_115200 },
+	{	/* RockForceDUO+ */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x0C00,
+		0, 0, pbn_b0_2_115200 },
+	{	/* RockForceQUARTRO+ */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x0D00,
+		0, 0, pbn_b0_4_115200 },
+	{	/* RockForceOCTO+ */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x1D00,
+		0, 0, pbn_b0_8_115200 },
+	{	/* RockForceD1 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x2000,
+		0, 0, pbn_b0_1_115200 },
+	{	/* RockForceF1 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x2100,
+		0, 0, pbn_b0_1_115200 },
+	{	/* RockForceD2 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x2200,
+		0, 0, pbn_b0_2_115200 },
+	{	/* RockForceF2 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x2300,
+		0, 0, pbn_b0_2_115200 },
+	{	/* RockForceD4 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x2400,
+		0, 0, pbn_b0_4_115200 },
+	{	/* RockForceF4 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x2500,
+		0, 0, pbn_b0_4_115200 },
+	{	/* RockForceD8 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x2600,
+		0, 0, pbn_b0_8_115200 },
+	{	/* RockForceF8 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x2700,
+		0, 0, pbn_b0_8_115200 },
+	{	/* IQ Express D1 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x3000,
+		0, 0, pbn_b0_1_115200 },
+	{	/* IQ Express F1 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x3100,
+		0, 0, pbn_b0_1_115200 },
+	{	/* IQ Express D2 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x3200,
+		0, 0, pbn_b0_2_115200 },
+	{	/* IQ Express F2 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x3300,
+		0, 0, pbn_b0_2_115200 },
+	{	/* IQ Express D4 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x3400,
+		0, 0, pbn_b0_4_115200 },
+	{	/* IQ Express F4 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x3500,
+		0, 0, pbn_b0_4_115200 },
+	{	/* IQ Express D8 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x3C00,
+		0, 0, pbn_b0_8_115200 },
+	{	/* IQ Express F8 */
+		PCI_VENDOR_ID_MAINPINE, PCI_DEVICE_ID_MAINPINE_PBRIDGE,
+		PCI_VENDOR_ID_MAINPINE, 0x3D00,
+		0, 0, pbn_b0_8_115200 },
+
+
+	/*
+	 * PA Semi PA6T-1682M on-chip UART
+	 */
+	{	PCI_VENDOR_ID_PASEMI, 0xa004,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pasemi_1682M },
+
+	/*
+	 * National Instruments
+	 */
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI23216,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_16_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI2328,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_8_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI2324,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_bt_4_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI2322,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_bt_2_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI2324I,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_bt_4_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI2322I,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_bt_2_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8420_23216,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_16_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8420_2328,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_8_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8420_2324,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_bt_4_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8420_2322,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_bt_2_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8422_2324,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_bt_4_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8422_2322,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b1_bt_2_115200 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8430_2322,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_2 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI8430_2322,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_2 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8430_2324,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_4 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI8430_2324,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_4 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8430_2328,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_8 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI8430_2328,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_8 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8430_23216,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_16 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI8430_23216,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_16 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8432_2322,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_2 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI8432_2322,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_2 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PXI8432_2324,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_4 },
+	{	PCI_VENDOR_ID_NI, PCI_DEVICE_ID_NI_PCI8432_2324,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_ni8430_4 },
+
+	/*
+	* ADDI-DATA GmbH communication cards <info@addi-data.com>
+	*/
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCI7500,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b0_4_115200 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCI7420,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b0_2_115200 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCI7300,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b0_1_115200 },
+
+	{	PCI_VENDOR_ID_AMCC,
+		PCI_DEVICE_ID_AMCC_ADDIDATA_APCI7800,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b1_8_115200 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCI7500_2,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b0_4_115200 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCI7420_2,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b0_2_115200 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCI7300_2,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b0_1_115200 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCI7500_3,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b0_4_115200 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCI7420_3,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b0_2_115200 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCI7300_3,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b0_1_115200 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCI7800_3,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_b0_8_115200 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCIe7500,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_ADDIDATA_PCIe_4_3906250 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCIe7420,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_ADDIDATA_PCIe_2_3906250 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCIe7300,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_ADDIDATA_PCIe_1_3906250 },
+
+	{	PCI_VENDOR_ID_ADDIDATA,
+		PCI_DEVICE_ID_ADDIDATA_APCIe7800,
+		PCI_ANY_ID,
+		PCI_ANY_ID,
+		0,
+		0,
+		pbn_ADDIDATA_PCIe_8_3906250 },
+
+	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835,
+		PCI_VENDOR_ID_IBM, 0x0299,
+		0, 0, pbn_b0_bt_2_115200 },
+
+	/*
+	 * other NetMos 9835 devices are most likely handled by the
+	 * parport_serial driver, check drivers/parport/parport_serial.c
+	 * before adding them here.
+	 */
+
+	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9901,
+		0xA000, 0x1000,
+		0, 0, pbn_b0_1_115200 },
+
+	/* the 9901 is a rebranded 9912 */
+	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9912,
+		0xA000, 0x1000,
+		0, 0, pbn_b0_1_115200 },
+
+	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9922,
+		0xA000, 0x1000,
+		0, 0, pbn_b0_1_115200 },
+
+	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9904,
+		0xA000, 0x1000,
+		0, 0, pbn_b0_1_115200 },
+
+	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
+		0xA000, 0x1000,
+		0, 0, pbn_b0_1_115200 },
+
+	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9900,
+		0xA000, 0x3002,
+		0, 0, pbn_NETMOS9900_2s_115200 },
+
+	/*
+	 * Best Connectivity and Rosewill PCI Multi I/O cards
+	 */
+
+	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9865,
+		0xA000, 0x1000,
+		0, 0, pbn_b0_1_115200 },
+
+	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9865,
+		0xA000, 0x3002,
+		0, 0, pbn_b0_bt_2_115200 },
+
+	{	PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9865,
+		0xA000, 0x3004,
+		0, 0, pbn_b0_bt_4_115200 },
+	/* Intel CE4100 */
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CE4100_UART,
+		PCI_ANY_ID,  PCI_ANY_ID, 0, 0,
+		pbn_ce4100_1_115200 },
+	/* Intel BayTrail */
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_UART1,
+		PCI_ANY_ID,  PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+		pbn_byt },
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_UART2,
+		PCI_ANY_ID,  PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+		pbn_byt },
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW_UART1,
+		PCI_ANY_ID,  PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+		pbn_byt },
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW_UART2,
+		PCI_ANY_ID,  PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+		pbn_byt },
+
+	/*
+	 * Intel Penwell
+	 */
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PNW_UART1,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pnw},
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PNW_UART2,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pnw},
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PNW_UART3,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_pnw},
+
+	/*
+	 * Intel Tangier
+	 */
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TNG_UART,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_tng},
+
+	/*
+	 * Intel Quark x1000
+	 */
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_QRK_UART,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_qrk },
+	/*
+	 * Cronyx Omega PCI
+	 */
+	{	PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_CRONYX_OMEGA,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_omegapci },
+
+	/*
+	 * Broadcom TruManage
+	 */
+	{	PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BROADCOM_TRUMANAGE,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_brcm_trumanage },
+
+	/*
+	 * AgeStar as-prs2-009
+	 */
+	{	PCI_VENDOR_ID_AGESTAR, PCI_DEVICE_ID_AGESTAR_9375,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_bt_2_115200 },
+
+	/*
+	 * WCH CH353 series devices: The 2S1P is handled by parport_serial
+	 * so not listed here.
+	 */
+	{	PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH353_4S,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_bt_4_115200 },
+
+	{	PCI_VENDOR_ID_WCH, PCI_DEVICE_ID_WCH_CH353_2S1PF,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_b0_bt_2_115200 },
+
+	{	PCIE_VENDOR_ID_WCH, PCIE_DEVICE_ID_WCH_CH384_4S,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0, 0, pbn_wch384_4 },
+
+	/*
+	 * Commtech, Inc. Fastcom adapters
+	 */
+	{	PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_4222PCI335,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_b0_2_1152000_200 },
+	{	PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_4224PCI335,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_b0_4_1152000_200 },
+	{	PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_2324PCI335,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_b0_4_1152000_200 },
+	{	PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_2328PCI335,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_b0_8_1152000_200 },
+	{	PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_4222PCIE,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17V352 },
+	{	PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_4224PCIE,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17V354 },
+	{	PCI_VENDOR_ID_COMMTECH, PCI_DEVICE_ID_COMMTECH_4228PCIE,
+		PCI_ANY_ID, PCI_ANY_ID,
+		0,
+		0, pbn_exar_XR17V358 },
+
+	/* Fintek PCI serial cards */
+	{ PCI_DEVICE(0x1c29, 0x1104), .driver_data = pbn_fintek_4 },
+	{ PCI_DEVICE(0x1c29, 0x1108), .driver_data = pbn_fintek_8 },
+	{ PCI_DEVICE(0x1c29, 0x1112), .driver_data = pbn_fintek_12 },
+
+	/*
+	 * These entries match devices with class COMMUNICATION_SERIAL,
+	 * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL
+	 */
+	{	PCI_ANY_ID, PCI_ANY_ID,
+		PCI_ANY_ID, PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_SERIAL << 8,
+		0xffff00, pbn_default },
+	{	PCI_ANY_ID, PCI_ANY_ID,
+		PCI_ANY_ID, PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_MODEM << 8,
+		0xffff00, pbn_default },
+	{	PCI_ANY_ID, PCI_ANY_ID,
+		PCI_ANY_ID, PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_MULTISERIAL << 8,
+		0xffff00, pbn_default },
+	{ 0, }
+};
+
+static pci_ers_result_t serial8250_io_error_detected(struct pci_dev *dev,
+						pci_channel_state_t state)
+{
+	struct serial_private *priv = pci_get_drvdata(dev);
+
+	if (state == pci_channel_io_perm_failure)
+		return PCI_ERS_RESULT_DISCONNECT;
+
+	if (priv)
+		pciserial_suspend_ports(priv);
+
+	pci_disable_device(dev);
+
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+static pci_ers_result_t serial8250_io_slot_reset(struct pci_dev *dev)
+{
+	int rc;
+
+	rc = pci_enable_device(dev);
+
+	if (rc)
+		return PCI_ERS_RESULT_DISCONNECT;
+
+	pci_restore_state(dev);
+	pci_save_state(dev);
+
+	return PCI_ERS_RESULT_RECOVERED;
+}
+
+static void serial8250_io_resume(struct pci_dev *dev)
+{
+	struct serial_private *priv = pci_get_drvdata(dev);
+
+	if (priv)
+		pciserial_resume_ports(priv);
+}
+
+static const struct pci_error_handlers serial8250_err_handler = {
+	.error_detected = serial8250_io_error_detected,
+	.slot_reset = serial8250_io_slot_reset,
+	.resume = serial8250_io_resume,
+};
+
+static struct pci_driver serial_pci_driver = {
+	.name		= "serial",
+	.probe		= pciserial_init_one,
+	.remove		= pciserial_remove_one,
+	.driver         = {
+		.pm     = &pciserial_pm_ops,
+	},
+	.id_table	= serial_pci_tbl,
+	.err_handler	= &serial8250_err_handler,
+};
+
+module_pci_driver(serial_pci_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Generic 8250/16x50 PCI serial probe module");
+MODULE_DEVICE_TABLE(pci, serial_pci_tbl);
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/8250/8250_pnp.c
new file mode 100644
index 000000000..50a09cd76
--- /dev/null
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -0,0 +1,534 @@
+/*
+ *  Probe for 8250/16550-type ISAPNP serial ports.
+ *
+ *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
+ *
+ *  Copyright (C) 2001 Russell King, All Rights Reserved.
+ *
+ *  Ported to the Linux PnP Layer - (C) Adam Belay.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ */
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/pnp.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/serial_core.h>
+#include <linux/bitops.h>
+
+#include <asm/byteorder.h>
+
+#include "8250.h"
+
+#define UNKNOWN_DEV 0x3000
+#define CIR_PORT	0x0800
+
+static const struct pnp_device_id pnp_dev_table[] = {
+	/* Archtek America Corp. */
+	/* Archtek SmartLink Modem 3334BT Plug & Play */
+	{	"AAC000F",		0	},
+	/* Anchor Datacomm BV */
+	/* SXPro 144 External Data Fax Modem Plug & Play */
+	{	"ADC0001",		0	},
+	/* SXPro 288 External Data Fax Modem Plug & Play */
+	{	"ADC0002",		0	},
+	/* PROLiNK 1456VH ISA PnP K56flex Fax Modem */
+	{	"AEI0250",		0	},
+	/* Actiontec ISA PNP 56K X2 Fax Modem */
+	{	"AEI1240",		0	},
+	/* Rockwell 56K ACF II Fax+Data+Voice Modem */
+	{	"AKY1021",		0 /*SPCI_FL_NO_SHIRQ*/	},
+	/* AZT3005 PnP SOUND DEVICE */
+	{	"AZT4001",		0	},
+	/* Best Data Products Inc. Smart One 336F PnP Modem */
+	{	"BDP3336",		0	},
+	/*  Boca Research */
+	/* Boca Complete Ofc Communicator 14.4 Data-FAX */
+	{	"BRI0A49",		0	},
+	/* Boca Research 33,600 ACF Modem */
+	{	"BRI1400",		0	},
+	/* Boca 33.6 Kbps Internal FD34FSVD */
+	{	"BRI3400",		0	},
+	/* Boca 33.6 Kbps Internal FD34FSVD */
+	{	"BRI0A49",		0	},
+	/* Best Data Products Inc. Smart One 336F PnP Modem */
+	{	"BDP3336",		0	},
+	/* Computer Peripherals Inc */
+	/* EuroViVa CommCenter-33.6 SP PnP */
+	{	"CPI4050",		0	},
+	/* Creative Labs */
+	/* Creative Labs Phone Blaster 28.8 DSVD PnP Voice */
+	{	"CTL3001",		0	},
+	/* Creative Labs Modem Blaster 28.8 DSVD PnP Voice */
+	{	"CTL3011",		0	},
+	/* Davicom ISA 33.6K Modem */
+	{	"DAV0336",		0	},
+	/* Creative */
+	/* Creative Modem Blaster Flash56 DI5601-1 */
+	{	"DMB1032",		0	},
+	/* Creative Modem Blaster V.90 DI5660 */
+	{	"DMB2001",		0	},
+	/* E-Tech */
+	/* E-Tech CyberBULLET PC56RVP */
+	{	"ETT0002",		0	},
+	/* FUJITSU */
+	/* Fujitsu 33600 PnP-I2 R Plug & Play */
+	{	"FUJ0202",		0	},
+	/* Fujitsu FMV-FX431 Plug & Play */
+	{	"FUJ0205",		0	},
+	/* Fujitsu 33600 PnP-I4 R Plug & Play */
+	{	"FUJ0206",		0	},
+	/* Fujitsu Fax Voice 33600 PNP-I5 R Plug & Play */
+	{	"FUJ0209",		0	},
+	/* Archtek America Corp. */
+	/* Archtek SmartLink Modem 3334BT Plug & Play */
+	{	"GVC000F",		0	},
+	/* Archtek SmartLink Modem 3334BRV 33.6K Data Fax Voice */
+	{	"GVC0303",		0	},
+	/* Hayes */
+	/* Hayes Optima 288 V.34-V.FC + FAX + Voice Plug & Play */
+	{	"HAY0001",		0	},
+	/* Hayes Optima 336 V.34 + FAX + Voice PnP */
+	{	"HAY000C",		0	},
+	/* Hayes Optima 336B V.34 + FAX + Voice PnP */
+	{	"HAY000D",		0	},
+	/* Hayes Accura 56K Ext Fax Modem PnP */
+	{	"HAY5670",		0	},
+	/* Hayes Accura 56K Ext Fax Modem PnP */
+	{	"HAY5674",		0	},
+	/* Hayes Accura 56K Fax Modem PnP */
+	{	"HAY5675",		0	},
+	/* Hayes 288, V.34 + FAX */
+	{	"HAYF000",		0	},
+	/* Hayes Optima 288 V.34 + FAX + Voice, Plug & Play */
+	{	"HAYF001",		0	},
+	/* IBM */
+	/* IBM Thinkpad 701 Internal Modem Voice */
+	{	"IBM0033",		0	},
+	/* Intermec */
+	/* Intermec CV60 touchscreen port */
+	{	"PNP4972",		0	},
+	/* Intertex */
+	/* Intertex 28k8 33k6 Voice EXT PnP */
+	{	"IXDC801",		0	},
+	/* Intertex 33k6 56k Voice EXT PnP */
+	{	"IXDC901",		0	},
+	/* Intertex 28k8 33k6 Voice SP EXT PnP */
+	{	"IXDD801",		0	},
+	/* Intertex 33k6 56k Voice SP EXT PnP */
+	{	"IXDD901",		0	},
+	/* Intertex 28k8 33k6 Voice SP INT PnP */
+	{	"IXDF401",		0	},
+	/* Intertex 28k8 33k6 Voice SP EXT PnP */
+	{	"IXDF801",		0	},
+	/* Intertex 33k6 56k Voice SP EXT PnP */
+	{	"IXDF901",		0	},
+	/* Kortex International */
+	/* KORTEX 28800 Externe PnP */
+	{	"KOR4522",		0	},
+	/* KXPro 33.6 Vocal ASVD PnP */
+	{	"KORF661",		0	},
+	/* Lasat */
+	/* LASAT Internet 33600 PnP */
+	{	"LAS4040",		0	},
+	/* Lasat Safire 560 PnP */
+	{	"LAS4540",		0	},
+	/* Lasat Safire 336  PnP */
+	{	"LAS5440",		0	},
+	/* Microcom, Inc. */
+	/* Microcom TravelPorte FAST V.34 Plug & Play */
+	{	"MNP0281",		0	},
+	/* Microcom DeskPorte V.34 FAST or FAST+ Plug & Play */
+	{	"MNP0336",		0	},
+	/* Microcom DeskPorte FAST EP 28.8 Plug & Play */
+	{	"MNP0339",		0	},
+	/* Microcom DeskPorte 28.8P Plug & Play */
+	{	"MNP0342",		0	},
+	/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
+	{	"MNP0500",		0	},
+	/* Microcom DeskPorte FAST ES 28.8 Plug & Play */
+	{	"MNP0501",		0	},
+	/* Microcom DeskPorte 28.8S Internal Plug & Play */
+	{	"MNP0502",		0	},
+	/* Motorola */
+	/* Motorola BitSURFR Plug & Play */
+	{	"MOT1105",		0	},
+	/* Motorola TA210 Plug & Play */
+	{	"MOT1111",		0	},
+	/* Motorola HMTA 200 (ISDN) Plug & Play */
+	{	"MOT1114",		0	},
+	/* Motorola BitSURFR Plug & Play */
+	{	"MOT1115",		0	},
+	/* Motorola Lifestyle 28.8 Internal */
+	{	"MOT1190",		0	},
+	/* Motorola V.3400 Plug & Play */
+	{	"MOT1501",		0	},
+	/* Motorola Lifestyle 28.8 V.34 Plug & Play */
+	{	"MOT1502",		0	},
+	/* Motorola Power 28.8 V.34 Plug & Play */
+	{	"MOT1505",		0	},
+	/* Motorola ModemSURFR External 28.8 Plug & Play */
+	{	"MOT1509",		0	},
+	/* Motorola Premier 33.6 Desktop Plug & Play */
+	{	"MOT150A",		0	},
+	/* Motorola VoiceSURFR 56K External PnP */
+	{	"MOT150F",		0	},
+	/* Motorola ModemSURFR 56K External PnP */
+	{	"MOT1510",		0	},
+	/* Motorola ModemSURFR 56K Internal PnP */
+	{	"MOT1550",		0	},
+	/* Motorola ModemSURFR Internal 28.8 Plug & Play */
+	{	"MOT1560",		0	},
+	/* Motorola Premier 33.6 Internal Plug & Play */
+	{	"MOT1580",		0	},
+	/* Motorola OnlineSURFR 28.8 Internal Plug & Play */
+	{	"MOT15B0",		0	},
+	/* Motorola VoiceSURFR 56K Internal PnP */
+	{	"MOT15F0",		0	},
+	/* Com 1 */
+	/*  Deskline K56 Phone System PnP */
+	{	"MVX00A1",		0	},
+	/* PC Rider K56 Phone System PnP */
+	{	"MVX00F2",		0	},
+	/* NEC 98NOTE SPEAKER PHONE FAX MODEM(33600bps) */
+	{	"nEC8241",		0	},
+	/* Pace 56 Voice Internal Plug & Play Modem */
+	{	"PMC2430",		0	},
+	/* Generic */
+	/* Generic standard PC COM port	 */
+	{	"PNP0500",		0	},
+	/* Generic 16550A-compatible COM port */
+	{	"PNP0501",		0	},
+	/* Compaq 14400 Modem */
+	{	"PNPC000",		0	},
+	/* Compaq 2400/9600 Modem */
+	{	"PNPC001",		0	},
+	/* Dial-Up Networking Serial Cable between 2 PCs */
+	{	"PNPC031",		0	},
+	/* Dial-Up Networking Parallel Cable between 2 PCs */
+	{	"PNPC032",		0	},
+	/* Standard 9600 bps Modem */
+	{	"PNPC100",		0	},
+	/* Standard 14400 bps Modem */
+	{	"PNPC101",		0	},
+	/*  Standard 28800 bps Modem*/
+	{	"PNPC102",		0	},
+	/*  Standard Modem*/
+	{	"PNPC103",		0	},
+	/*  Standard 9600 bps Modem*/
+	{	"PNPC104",		0	},
+	/*  Standard 14400 bps Modem*/
+	{	"PNPC105",		0	},
+	/*  Standard 28800 bps Modem*/
+	{	"PNPC106",		0	},
+	/*  Standard Modem */
+	{	"PNPC107",		0	},
+	/* Standard 9600 bps Modem */
+	{	"PNPC108",		0	},
+	/* Standard 14400 bps Modem */
+	{	"PNPC109",		0	},
+	/* Standard 28800 bps Modem */
+	{	"PNPC10A",		0	},
+	/* Standard Modem */
+	{	"PNPC10B",		0	},
+	/* Standard 9600 bps Modem */
+	{	"PNPC10C",		0	},
+	/* Standard 14400 bps Modem */
+	{	"PNPC10D",		0	},
+	/* Standard 28800 bps Modem */
+	{	"PNPC10E",		0	},
+	/* Standard Modem */
+	{	"PNPC10F",		0	},
+	/* Standard PCMCIA Card Modem */
+	{	"PNP2000",		0	},
+	/* Rockwell */
+	/* Modular Technology */
+	/* Rockwell 33.6 DPF Internal PnP */
+	/* Modular Technology 33.6 Internal PnP */
+	{	"ROK0030",		0	},
+	/* Kortex International */
+	/* KORTEX 14400 Externe PnP */
+	{	"ROK0100",		0	},
+	/* Rockwell 28.8 */
+	{	"ROK4120",		0	},
+	/* Viking Components, Inc */
+	/* Viking 28.8 INTERNAL Fax+Data+Voice PnP */
+	{	"ROK4920",		0	},
+	/* Rockwell */
+	/* British Telecom */
+	/* Modular Technology */
+	/* Rockwell 33.6 DPF External PnP */
+	/* BT Prologue 33.6 External PnP */
+	/* Modular Technology 33.6 External PnP */
+	{	"RSS00A0",		0	},
+	/* Viking 56K FAX INT */
+	{	"RSS0262",		0	},
+	/* K56 par,VV,Voice,Speakphone,AudioSpan,PnP */
+	{       "RSS0250",              0       },
+	/* SupraExpress 28.8 Data/Fax PnP modem */
+	{	"SUP1310",		0	},
+	/* SupraExpress 336i PnP Voice Modem */
+	{	"SUP1381",		0	},
+	/* SupraExpress 33.6 Data/Fax PnP modem */
+	{	"SUP1421",		0	},
+	/* SupraExpress 33.6 Data/Fax PnP modem */
+	{	"SUP1590",		0	},
+	/* SupraExpress 336i Sp ASVD */
+	{	"SUP1620",		0	},
+	/* SupraExpress 33.6 Data/Fax PnP modem */
+	{	"SUP1760",		0	},
+	/* SupraExpress 56i Sp Intl */
+	{	"SUP2171",		0	},
+	/* Phoebe Micro */
+	/* Phoebe Micro 33.6 Data Fax 1433VQH Plug & Play */
+	{	"TEX0011",		0	},
+	/* Archtek America Corp. */
+	/* Archtek SmartLink Modem 3334BT Plug & Play */
+	{	"UAC000F",		0	},
+	/* 3Com Corp. */
+	/* Gateway Telepath IIvi 33.6 */
+	{	"USR0000",		0	},
+	/* U.S. Robotics Sporster 33.6K Fax INT PnP */
+	{	"USR0002",		0	},
+	/*  Sportster Vi 14.4 PnP FAX Voicemail */
+	{	"USR0004",		0	},
+	/* U.S. Robotics 33.6K Voice INT PnP */
+	{	"USR0006",		0	},
+	/* U.S. Robotics 33.6K Voice EXT PnP */
+	{	"USR0007",		0	},
+	/* U.S. Robotics Courier V.Everything INT PnP */
+	{	"USR0009",		0	},
+	/* U.S. Robotics 33.6K Voice INT PnP */
+	{	"USR2002",		0	},
+	/* U.S. Robotics 56K Voice INT PnP */
+	{	"USR2070",		0	},
+	/* U.S. Robotics 56K Voice EXT PnP */
+	{	"USR2080",		0	},
+	/* U.S. Robotics 56K FAX INT */
+	{	"USR3031",		0	},
+	/* U.S. Robotics 56K FAX INT */
+	{	"USR3050",		0	},
+	/* U.S. Robotics 56K Voice INT PnP */
+	{	"USR3070",		0	},
+	/* U.S. Robotics 56K Voice EXT PnP */
+	{	"USR3080",		0	},
+	/* U.S. Robotics 56K Voice INT PnP */
+	{	"USR3090",		0	},
+	/* U.S. Robotics 56K Message  */
+	{	"USR9100",		0	},
+	/* U.S. Robotics 56K FAX EXT PnP*/
+	{	"USR9160",		0	},
+	/* U.S. Robotics 56K FAX INT PnP*/
+	{	"USR9170",		0	},
+	/* U.S. Robotics 56K Voice EXT PnP*/
+	{	"USR9180",		0	},
+	/* U.S. Robotics 56K Voice INT PnP*/
+	{	"USR9190",		0	},
+	/* Wacom tablets */
+	{	"WACFXXX",		0	},
+	/* Compaq touchscreen */
+	{       "FPI2002",              0 },
+	/* Fujitsu Stylistic touchscreens */
+	{       "FUJ02B2",              0 },
+	{       "FUJ02B3",              0 },
+	/* Fujitsu Stylistic LT touchscreens */
+	{       "FUJ02B4",              0 },
+	/* Passive Fujitsu Stylistic touchscreens */
+	{       "FUJ02B6",              0 },
+	{       "FUJ02B7",              0 },
+	{       "FUJ02B8",              0 },
+	{       "FUJ02B9",              0 },
+	{       "FUJ02BC",              0 },
+	/* Fujitsu Wacom Tablet PC device */
+	{	"FUJ02E5",		0	},
+	/* Fujitsu P-series tablet PC device */
+	{	"FUJ02E6",		0	},
+	/* Fujitsu Wacom 2FGT Tablet PC device */
+	{	"FUJ02E7",		0	},
+	/* Fujitsu Wacom 1FGT Tablet PC device */
+	{	"FUJ02E9",		0	},
+	/*
+	 * LG C1 EXPRESS DUAL (C1-PB11A3) touch screen (actually a FUJ02E6 in
+	 * disguise)
+	 */
+	{	"LTS0001",		0       },
+	/* Rockwell's (PORALiNK) 33600 INT PNP */
+	{	"WCI0003",		0	},
+	/* Unknown PnP modems */
+	{	"PNPCXXX",		UNKNOWN_DEV	},
+	/* More unknown PnP modems */
+	{	"PNPDXXX",		UNKNOWN_DEV	},
+	/* Winbond CIR port, should not be probed. We should keep track
+	   of it to prevent the legacy serial driver from probing it */
+	{	"WEC1022",		CIR_PORT	},
+	{	"",			0	}
+};
+
+MODULE_DEVICE_TABLE(pnp, pnp_dev_table);
+
+static char *modem_names[] = {
+	"MODEM", "Modem", "modem", "FAX", "Fax", "fax",
+	"56K", "56k", "K56", "33.6", "28.8", "14.4",
+	"33,600", "28,800", "14,400", "33.600", "28.800", "14.400",
+	"33600", "28800", "14400", "V.90", "V.34", "V.32", NULL
+};
+
+static int check_name(char *name)
+{
+	char **tmp;
+
+	for (tmp = modem_names; *tmp; tmp++)
+		if (strstr(name, *tmp))
+			return 1;
+
+	return 0;
+}
+
+static int check_resources(struct pnp_dev *dev)
+{
+	resource_size_t base[] = {0x2f8, 0x3f8, 0x2e8, 0x3e8};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(base); i++) {
+		if (pnp_possible_config(dev, IORESOURCE_IO, base[i], 8))
+			return 1;
+	}
+
+	return 0;
+}
+
+/*
+ * Given a complete unknown PnP device, try to use some heuristics to
+ * detect modems. Currently use such heuristic set:
+ *     - dev->name or dev->bus->name must contain "modem" substring;
+ *     - device must have only one IO region (8 byte long) with base address
+ *       0x2e8, 0x3e8, 0x2f8 or 0x3f8.
+ *
+ * Such detection looks very ugly, but can detect at least some of numerous
+ * PnP modems, alternatively we must hardcode all modems in pnp_devices[]
+ * table.
+ */
+static int serial_pnp_guess_board(struct pnp_dev *dev)
+{
+	if (!(check_name(pnp_dev_name(dev)) ||
+		(dev->card && check_name(dev->card->name))))
+			return -ENODEV;
+
+	if (check_resources(dev))
+		return 0;
+
+	return -ENODEV;
+}
+
+static int
+serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
+{
+	struct uart_8250_port uart, *port;
+	int ret, line, flags = dev_id->driver_data;
+
+	if (flags & UNKNOWN_DEV) {
+		ret = serial_pnp_guess_board(dev);
+		if (ret < 0)
+			return ret;
+	}
+
+	memset(&uart, 0, sizeof(uart));
+	if (pnp_irq_valid(dev, 0))
+		uart.port.irq = pnp_irq(dev, 0);
+	if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) {
+		uart.port.iobase = pnp_port_start(dev, 2);
+		uart.port.iotype = UPIO_PORT;
+	} else if (pnp_port_valid(dev, 0)) {
+		uart.port.iobase = pnp_port_start(dev, 0);
+		uart.port.iotype = UPIO_PORT;
+	} else if (pnp_mem_valid(dev, 0)) {
+		uart.port.mapbase = pnp_mem_start(dev, 0);
+		uart.port.iotype = UPIO_MEM;
+		uart.port.flags = UPF_IOREMAP;
+	} else
+		return -ENODEV;
+
+#ifdef SERIAL_DEBUG_PNP
+	printk(KERN_DEBUG
+		"Setup PNP port: port %x, mem 0x%lx, irq %d, type %d\n",
+		       uart.port.iobase, uart.port.mapbase, uart.port.irq, uart.port.iotype);
+#endif
+	if (flags & CIR_PORT) {
+		uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;
+		uart.port.type = PORT_8250_CIR;
+	}
+
+	uart.port.flags |= UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
+	if (pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
+		uart.port.flags |= UPF_SHARE_IRQ;
+	uart.port.uartclk = 1843200;
+	uart.port.dev = &dev->dev;
+
+	line = serial8250_register_8250_port(&uart);
+	if (line < 0 || (flags & CIR_PORT))
+		return -ENODEV;
+
+	port = serial8250_get_port(line);
+	if (uart_console(&port->port))
+		dev->capabilities |= PNP_CONSOLE;
+
+	pnp_set_drvdata(dev, (void *)((long)line + 1));
+	return 0;
+}
+
+static void serial_pnp_remove(struct pnp_dev *dev)
+{
+	long line = (long)pnp_get_drvdata(dev);
+
+	dev->capabilities &= ~PNP_CONSOLE;
+	if (line)
+		serial8250_unregister_port(line - 1);
+}
+
+#ifdef CONFIG_PM
+static int serial_pnp_suspend(struct pnp_dev *dev, pm_message_t state)
+{
+	long line = (long)pnp_get_drvdata(dev);
+
+	if (!line)
+		return -ENODEV;
+	serial8250_suspend_port(line - 1);
+	return 0;
+}
+
+static int serial_pnp_resume(struct pnp_dev *dev)
+{
+	long line = (long)pnp_get_drvdata(dev);
+
+	if (!line)
+		return -ENODEV;
+	serial8250_resume_port(line - 1);
+	return 0;
+}
+#else
+#define serial_pnp_suspend NULL
+#define serial_pnp_resume NULL
+#endif /* CONFIG_PM */
+
+static struct pnp_driver serial_pnp_driver = {
+	.name		= "serial",
+	.probe		= serial_pnp_probe,
+	.remove		= serial_pnp_remove,
+	.suspend	= serial_pnp_suspend,
+	.resume		= serial_pnp_resume,
+	.id_table	= pnp_dev_table,
+};
+
+int serial8250_pnp_init(void)
+{
+	return pnp_register_driver(&serial_pnp_driver);
+}
+
+void serial8250_pnp_exit(void)
+{
+	pnp_unregister_driver(&serial_pnp_driver);
+}
+
diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
new file mode 100644
index 000000000..c35070356
--- /dev/null
+++ b/drivers/tty/serial/8250/Kconfig
@@ -0,0 +1,344 @@
+#
+# The 8250/16550 serial drivers.  You shouldn't be in this list unless
+# you somehow have an implicit or explicit dependency on SERIAL_8250.
+#
+
+config SERIAL_8250
+	tristate "8250/16550 and compatible serial support"
+	select SERIAL_CORE
+	---help---
+	  This selects whether you want to include the driver for the standard
+	  serial ports.  The standard answer is Y.  People who might say N
+	  here are those that are setting up dedicated Ethernet WWW/FTP
+	  servers, or users that have one of the various bus mice instead of a
+	  serial mouse and don't intend to use their machine's standard serial
+	  port for anything.  (Note that the Cyclades multi serial port driver
+	  does not need this driver built in for it to work.)
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called 8250.
+	  [WARNING: Do not compile this driver as a module if you are using
+	  non-standard serial ports, since the configuration information will
+	  be lost when the driver is unloaded.  This limitation may be lifted
+	  in the future.]
+
+	  BTW1: If you have a mouseman serial mouse which is not recognized by
+	  the X window system, try running gpm first.
+
+	  BTW2: If you intend to use a software modem (also called Winmodem)
+	  under Linux, forget it.  These modems are crippled and require
+	  proprietary drivers which are only available under Windows.
+
+	  Most people will say Y or M here, so that they can use serial mice,
+	  modems and similar devices connecting to the standard serial ports.
+
+config SERIAL_8250_DEPRECATED_OPTIONS
+	bool "Support 8250_core.* kernel options (DEPRECATED)"
+	depends on SERIAL_8250
+	default y
+	---help---
+	  In 3.7 we renamed 8250 to 8250_core by mistake, so now we have to
+	  accept kernel parameters in both forms like 8250_core.nr_uarts=4 and
+	  8250.nr_uarts=4. We now renamed the module back to 8250, but if
+	  anybody noticed in 3.7 and changed their userspace we still have to
+	  keep the 8250_core.* options around until they revert the changes
+	  they already did.
+
+	  If 8250 is built as a module, this adds 8250_core alias instead. 
+
+	  If you did not notice yet and/or you have userspace from pre-3.7, it
+	  is safe (and recommended) to say N here.
+
+config SERIAL_8250_PNP
+	bool "8250/16550 PNP device support" if EXPERT
+	depends on SERIAL_8250 && PNP
+	default y
+	---help---
+	  This builds standard PNP serial support. You may be able to
+	  disable this feature if you only need legacy serial support.
+
+config SERIAL_8250_CONSOLE
+	bool "Console on 8250/16550 and compatible serial port"
+	depends on SERIAL_8250=y
+	select SERIAL_CORE_CONSOLE
+	select SERIAL_EARLYCON
+	---help---
+	  If you say Y here, it will be possible to use a serial port as the
+	  system console (the system console is the device which receives all
+	  kernel messages and warnings and which allows logins in single user
+	  mode). This could be useful if some terminal or printer is connected
+	  to that serial port.
+
+	  Even if you say Y here, the currently visible virtual console
+	  (/dev/tty0) will still be used as the system console by default, but
+	  you can alter that using a kernel command line option such as
+	  "console=ttyS1". (Try "man bootparam" or see the documentation of
+	  your boot loader (grub or lilo or loadlin) about how to pass options
+	  to the kernel at boot time.)
+
+	  If you don't have a VGA card installed and you say Y here, the
+	  kernel will automatically use the first serial line, /dev/ttyS0, as
+	  system console.
+
+	  You can set that using a kernel command line option such as
+	  "console=uart8250,io,0x3f8,9600n8"
+	  "console=uart8250,mmio,0xff5e0000,115200n8".
+	  and it will switch to normal serial console when the corresponding
+	  port is ready.
+	  "earlycon=uart8250,io,0x3f8,9600n8"
+	  "earlycon=uart8250,mmio,0xff5e0000,115200n8".
+	  it will not only setup early console.
+
+	  If unsure, say N.
+
+config SERIAL_8250_GSC
+	tristate
+	depends on SERIAL_8250 && GSC
+	default SERIAL_8250
+
+config SERIAL_8250_DMA
+	bool "DMA support for 16550 compatible UART controllers" if EXPERT
+	depends on SERIAL_8250 && DMADEVICES=y
+	default SERIAL_8250
+	help
+	  This builds DMA support that can be used with 8250/16650
+	  compatible UART controllers that support DMA signaling.
+
+config SERIAL_8250_PCI
+	tristate "8250/16550 PCI device support" if EXPERT
+	depends on SERIAL_8250 && PCI
+	default SERIAL_8250
+	select RATIONAL
+	help
+	  This builds standard PCI serial support. You may be able to
+	  disable this feature if you only need legacy serial support.
+	  Saves about 9K.
+	  Note that serial ports on NetMos 9835 Multi-I/O cards are handled
+	  by the parport_serial driver, enabled with CONFIG_PARPORT_SERIAL.
+
+config SERIAL_8250_HP300
+	tristate
+	depends on SERIAL_8250 && HP300
+	default SERIAL_8250
+
+config SERIAL_8250_CS
+	tristate "8250/16550 PCMCIA device support"
+	depends on PCMCIA && SERIAL_8250
+	---help---
+	  Say Y here to enable support for 16-bit PCMCIA serial devices,
+	  including serial port cards, modems, and the modem functions of
+	  multi-function Ethernet/modem cards. (PCMCIA- or PC-cards are
+	  credit-card size devices often used with laptops.)
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called serial_cs.
+
+	  If unsure, say N.
+
+config SERIAL_8250_NR_UARTS
+	int "Maximum number of 8250/16550 serial ports"
+	depends on SERIAL_8250
+	default "4"
+	help
+	  Set this to the number of serial ports you want the driver
+	  to support.  This includes any ports discovered via ACPI or
+	  PCI enumeration and any ports that may be added at run-time
+	  via hot-plug, or any ISA multi-port serial cards.
+
+config SERIAL_8250_RUNTIME_UARTS
+	int "Number of 8250/16550 serial ports to register at runtime"
+	depends on SERIAL_8250
+	range 0 SERIAL_8250_NR_UARTS
+	default "4"
+	help
+	  Set this to the maximum number of serial ports you want
+	  the kernel to register at boot time.  This can be overridden
+	  with the module parameter "nr_uarts", or boot-time parameter
+	  8250.nr_uarts
+
+config SERIAL_8250_EXTENDED
+	bool "Extended 8250/16550 serial driver options"
+	depends on SERIAL_8250
+	help
+	  If you wish to use any non-standard features of the standard "dumb"
+	  driver, say Y here. This includes HUB6 support, shared serial
+	  interrupts, special multiport support, support for more than the
+	  four COM 1/2/3/4 boards, etc.
+
+	  Note that the answer to this question won't directly affect the
+	  kernel: saying N will just cause the configurator to skip all
+	  the questions about serial driver options. If unsure, say N.
+
+config SERIAL_8250_MANY_PORTS
+	bool "Support more than 4 legacy serial ports"
+	depends on SERIAL_8250_EXTENDED && !IA64
+	help
+	  Say Y here if you have dumb serial boards other than the four
+	  standard COM 1/2/3/4 ports. This may happen if you have an AST
+	  FourPort, Accent Async, Boca (read the Boca mini-HOWTO, available
+	  from <http://www.tldp.org/docs.html#howto>), or other custom
+	  serial port hardware which acts similar to standard serial port
+	  hardware. If you only use the standard COM 1/2/3/4 ports, you can
+	  say N here to save some memory. You can also say Y if you have an
+	  "intelligent" multiport card such as Cyclades, Digiboards, etc.
+
+#
+# Multi-port serial cards
+#
+
+config SERIAL_8250_FOURPORT
+	tristate "Support Fourport cards"
+	depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
+	help
+	  Say Y here if you have an AST FourPort serial board.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called 8250_fourport.
+
+config SERIAL_8250_ACCENT
+	tristate "Support Accent cards"
+	depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
+	help
+	  Say Y here if you have an Accent Async serial board.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called 8250_accent.
+
+config SERIAL_8250_BOCA
+	tristate "Support Boca cards"
+	depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
+	help
+	  Say Y here if you have a Boca serial board.  Please read the Boca
+	  mini-HOWTO, available from <http://www.tldp.org/docs.html#howto>
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called 8250_boca.
+
+config SERIAL_8250_EXAR_ST16C554
+	tristate "Support Exar ST16C554/554D Quad UART"
+	depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
+	help
+	  The Uplogix Envoy TU301 uses this Exar Quad UART.  If you are
+	  tinkering with your Envoy TU301, or have a machine with this UART,
+	  say Y here.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called 8250_exar_st16c554.
+
+config SERIAL_8250_HUB6
+	tristate "Support Hub6 cards"
+	depends on SERIAL_8250 != n && ISA && SERIAL_8250_MANY_PORTS
+	help
+	  Say Y here if you have a HUB6 serial board.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called 8250_hub6.
+
+#
+# Misc. options/drivers.
+#
+
+config SERIAL_8250_SHARE_IRQ
+	bool "Support for sharing serial interrupts"
+	depends on SERIAL_8250_EXTENDED
+	help
+	  Some serial boards have hardware support which allows multiple dumb
+	  serial ports on the same board to share a single IRQ. To enable
+	  support for this in the serial driver, say Y here.
+
+config SERIAL_8250_DETECT_IRQ
+	bool "Autodetect IRQ on standard ports (unsafe)"
+	depends on SERIAL_8250_EXTENDED
+	help
+	  Say Y here if you want the kernel to try to guess which IRQ
+	  to use for your serial port.
+
+	  This is considered unsafe; it is far better to configure the IRQ in
+	  a boot script using the setserial command.
+
+	  If unsure, say N.
+
+config SERIAL_8250_RSA
+	bool "Support RSA serial ports"
+	depends on SERIAL_8250_EXTENDED
+	help
+	  ::: To be written :::
+
+config SERIAL_8250_ACORN
+	tristate "Acorn expansion card serial port support"
+	depends on ARCH_ACORN && SERIAL_8250
+	help
+	  If you have an Atomwide Serial card or Serial Port card for an Acorn
+	  system, say Y to this option.  The driver can handle 1, 2, or 3 port
+	  cards.  If unsure, say N.
+
+config SERIAL_8250_FSL
+	bool
+	depends on SERIAL_8250_CONSOLE && PPC_UDBG_16550
+	default PPC
+
+config SERIAL_8250_DW
+	tristate "Support for Synopsys DesignWare 8250 quirks"
+	depends on SERIAL_8250
+	help
+	  Selecting this option will enable handling of the extra features
+	  present in the Synopsys DesignWare APB UART.
+
+config SERIAL_8250_EM
+	tristate "Support for Emma Mobile integrated serial port"
+	depends on SERIAL_8250 && ARM && HAVE_CLK
+	help
+	  Selecting this option will add support for the integrated serial
+	  port hardware found on the Emma Mobile line of processors.
+	  If unsure, say N.
+
+config SERIAL_8250_RT288X
+	bool "Ralink RT288x/RT305x/RT3662/RT3883 serial port support"
+	depends on SERIAL_8250 && (SOC_RT288X || SOC_RT305X || SOC_RT3883 || SOC_MT7620)
+	help
+	  If you have a Ralink RT288x/RT305x SoC based board and want to use the
+	  serial port, say Y to this option. The driver can handle up to 2 serial
+	  ports. If unsure, say N.
+
+config SERIAL_8250_OMAP
+	tristate "Support for OMAP internal UART (8250 based driver)"
+	depends on SERIAL_8250 && ARCH_OMAP2PLUS
+	help
+	  If you have a machine based on an Texas Instruments OMAP CPU you
+	  can enable its onboard serial ports by enabling this option.
+
+	  This driver uses ttyS instead of ttyO.
+
+config SERIAL_8250_OMAP_TTYO_FIXUP
+	bool "Replace ttyO with ttyS"
+	depends on SERIAL_8250_OMAP=y && SERIAL_8250_CONSOLE
+	default y
+	help
+	  This option replaces the "console=ttyO" argument with the matching
+	  ttyS argument if the user did not specified it on the command line.
+	  This ensures that the user can see the kernel output during boot
+	  which he wouldn't see otherwise. The getty has still to be configured
+	  for ttyS instead of ttyO regardless of this option.
+	  This option is intended for people who "automatically" enable this
+	  driver without knowing that this driver requires a different console=
+	  argument. If you read this, please keep this option disabled and
+	  instead update your kernel command line. If you prepare a kernel for a
+	  distribution or other kind of larger user base then you probably want
+	  to keep this option enabled. Otherwise people might complain about a
+	  not booting kernel because the serial console remains silent in case
+	  they forgot to update the command line.
+
+config SERIAL_8250_FINTEK
+	tristate "Support for Fintek F81216A LPC to 4 UART"
+	depends on SERIAL_8250 && PNP
+	help
+	  Selecting this option will add support for the Fintek F81216A
+	  LPC to 4 UART. This device has some RS485 functionality not available
+	  through the PNP driver. If unsure, say N.
+
+config SERIAL_8250_MT6577
+	bool "Mediatek serial port support"
+	depends on SERIAL_8250 && ARCH_MEDIATEK
+	help
+	  If you have a Mediatek based board and want to use the
+	  serial port, say Y to this option. If unsure, say N.
diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile
new file mode 100644
index 000000000..31e7cdc68
--- /dev/null
+++ b/drivers/tty/serial/8250/Makefile
@@ -0,0 +1,25 @@
+#
+# Makefile for the 8250 serial device drivers.
+#
+
+obj-$(CONFIG_SERIAL_8250)		+= 8250.o
+8250-y					:= 8250_core.o
+8250-$(CONFIG_SERIAL_8250_PNP)		+= 8250_pnp.o
+8250-$(CONFIG_SERIAL_8250_DMA)		+= 8250_dma.o
+obj-$(CONFIG_SERIAL_8250_GSC)		+= 8250_gsc.o
+obj-$(CONFIG_SERIAL_8250_PCI)		+= 8250_pci.o
+obj-$(CONFIG_SERIAL_8250_HP300)		+= 8250_hp300.o
+obj-$(CONFIG_SERIAL_8250_CS)		+= serial_cs.o
+obj-$(CONFIG_SERIAL_8250_ACORN)		+= 8250_acorn.o
+obj-$(CONFIG_SERIAL_8250_CONSOLE)	+= 8250_early.o
+obj-$(CONFIG_SERIAL_8250_FOURPORT)	+= 8250_fourport.o
+obj-$(CONFIG_SERIAL_8250_ACCENT)	+= 8250_accent.o
+obj-$(CONFIG_SERIAL_8250_BOCA)		+= 8250_boca.o
+obj-$(CONFIG_SERIAL_8250_EXAR_ST16C554)	+= 8250_exar_st16c554.o
+obj-$(CONFIG_SERIAL_8250_HUB6)		+= 8250_hub6.o
+obj-$(CONFIG_SERIAL_8250_FSL)		+= 8250_fsl.o
+obj-$(CONFIG_SERIAL_8250_DW)		+= 8250_dw.o
+obj-$(CONFIG_SERIAL_8250_EM)		+= 8250_em.o
+obj-$(CONFIG_SERIAL_8250_OMAP)		+= 8250_omap.o
+obj-$(CONFIG_SERIAL_8250_FINTEK)	+= 8250_fintek.o
+obj-$(CONFIG_SERIAL_8250_MT6577)	+= 8250_mtk.o
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8250/serial_cs.c
new file mode 100644
index 000000000..4d180c942
--- /dev/null
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -0,0 +1,856 @@
+/*======================================================================
+
+    A driver for PCMCIA serial devices
+
+    serial_cs.c 1.134 2002/05/04 05:48:53
+
+    The contents of this file are subject to the Mozilla Public
+    License Version 1.1 (the "License"); you may not use this file
+    except in compliance with the License. You may obtain a copy of
+    the License at http://www.mozilla.org/MPL/
+
+    Software distributed under the License is distributed on an "AS
+    IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+    implied. See the License for the specific language governing
+    rights and limitations under the License.
+
+    The initial developer of the original code is David A. Hinds
+    <dahinds@users.sourceforge.net>.  Portions created by David A. Hinds
+    are Copyright (C) 1999 David A. Hinds.  All Rights Reserved.
+
+    Alternatively, the contents of this file may be used under the
+    terms of the GNU General Public License version 2 (the "GPL"), in which
+    case the provisions of the GPL are applicable instead of the
+    above.  If you wish to allow the use of your version of this file
+    only under the terms of the GPL and not to allow others to use
+    your version of this file under the MPL, indicate your decision
+    by deleting the provisions above and replace them with the notice
+    and other provisions required by the GPL.  If you do not delete
+    the provisions above, a recipient may use your version of this
+    file under either the MPL or the GPL.
+    
+======================================================================*/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/serial_core.h>
+#include <linux/delay.h>
+#include <linux/major.h>
+#include <asm/io.h>
+
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ciscode.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/cisreg.h>
+
+#include "8250.h"
+
+
+/*====================================================================*/
+
+/* Parameters that can be set with 'insmod' */
+
+/* Enable the speaker? */
+static int do_sound = 1;
+/* Skip strict UART tests? */
+static int buggy_uart;
+
+module_param(do_sound, int, 0444);
+module_param(buggy_uart, int, 0444);
+
+/*====================================================================*/
+
+/* Table of multi-port card ID's */
+
+struct serial_quirk {
+	unsigned int manfid;
+	unsigned int prodid;
+	int multi;		/* 1 = multifunction, > 1 = # ports */
+	void (*config)(struct pcmcia_device *);
+	void (*setup)(struct pcmcia_device *, struct uart_8250_port *);
+	void (*wakeup)(struct pcmcia_device *);
+	int (*post)(struct pcmcia_device *);
+};
+
+struct serial_info {
+	struct pcmcia_device	*p_dev;
+	int			ndev;
+	int			multi;
+	int			slave;
+	int			manfid;
+	int			prodid;
+	int			c950ctrl;
+	int			line[4];
+	const struct serial_quirk *quirk;
+};
+
+struct serial_cfg_mem {
+	tuple_t tuple;
+	cisparse_t parse;
+	u_char buf[256];
+};
+
+/*
+ * vers_1 5.0, "Brain Boxes", "2-Port RS232 card", "r6"
+ * manfid 0x0160, 0x0104
+ * This card appears to have a 14.7456MHz clock.
+ */
+/* Generic Modem: MD55x (GPRS/EDGE) have
+ * Elan VPU16551 UART with 14.7456MHz oscillator
+ * manfid 0x015D, 0x4C45
+ */
+static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_8250_port *uart)
+{
+	uart->port.uartclk = 14745600;
+}
+
+static int quirk_post_ibm(struct pcmcia_device *link)
+{
+	u8 val;
+	int ret;
+
+	ret = pcmcia_read_config_byte(link, 0x800, &val);
+	if (ret)
+		goto failed;
+
+	ret = pcmcia_write_config_byte(link, 0x800, val | 1);
+	if (ret)
+		goto failed;
+	return 0;
+
+ failed:
+	return -ENODEV;
+}
+
+/*
+ * Nokia cards are not really multiport cards.  Shouldn't this
+ * be handled by setting the quirk entry .multi = 0 | 1 ?
+ */
+static void quirk_config_nokia(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+
+	if (info->multi > 1)
+		info->multi = 1;
+}
+
+static void quirk_wakeup_oxsemi(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+
+	if (info->c950ctrl)
+		outb(12, info->c950ctrl + 1);
+}
+
+/* request_region? oxsemi branch does no request_region too... */
+/*
+ * This sequence is needed to properly initialize MC45 attached to OXCF950.
+ * I tried decreasing these msleep()s, but it worked properly (survived
+ * 1000 stop/start operations) with these timeouts (or bigger).
+ */
+static void quirk_wakeup_possio_gcc(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+	unsigned int ctrl = info->c950ctrl;
+
+	outb(0xA, ctrl + 1);
+	msleep(100);
+	outb(0xE, ctrl + 1);
+	msleep(300);
+	outb(0xC, ctrl + 1);
+	msleep(100);
+	outb(0xE, ctrl + 1);
+	msleep(200);
+	outb(0xF, ctrl + 1);
+	msleep(100);
+	outb(0xE, ctrl + 1);
+	msleep(100);
+	outb(0xC, ctrl + 1);
+}
+
+/*
+ * Socket Dual IO: this enables irq's for second port
+ */
+static void quirk_config_socket(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+
+	if (info->multi)
+		link->config_flags |= CONF_ENABLE_ESR;
+}
+
+static const struct serial_quirk quirks[] = {
+	{
+		.manfid	= 0x0160,
+		.prodid	= 0x0104,
+		.multi	= -1,
+		.setup	= quirk_setup_brainboxes_0104,
+	}, {
+		.manfid	= 0x015D,
+		.prodid	= 0x4C45,
+		.multi	= -1,
+		.setup	= quirk_setup_brainboxes_0104,
+	}, {
+		.manfid	= MANFID_IBM,
+		.prodid	= ~0,
+		.multi	= -1,
+		.post	= quirk_post_ibm,
+	}, {
+		.manfid	= MANFID_INTEL,
+		.prodid	= PRODID_INTEL_DUAL_RS232,
+		.multi	= 2,
+	}, {
+		.manfid	= MANFID_NATINST,
+		.prodid	= PRODID_NATINST_QUAD_RS232,
+		.multi	= 4,
+	}, {
+		.manfid	= MANFID_NOKIA,
+		.prodid	= ~0,
+		.multi	= -1,
+		.config	= quirk_config_nokia,
+	}, {
+		.manfid	= MANFID_OMEGA,
+		.prodid	= PRODID_OMEGA_QSP_100,
+		.multi	= 4,
+	}, {
+		.manfid	= MANFID_OXSEMI,
+		.prodid	= ~0,
+		.multi	= -1,
+		.wakeup	= quirk_wakeup_oxsemi,
+	}, {
+		.manfid	= MANFID_POSSIO,
+		.prodid	= PRODID_POSSIO_GCC,
+		.multi	= -1,
+		.wakeup	= quirk_wakeup_possio_gcc,
+	}, {
+		.manfid	= MANFID_QUATECH,
+		.prodid	= PRODID_QUATECH_DUAL_RS232,
+		.multi	= 2,
+	}, {
+		.manfid	= MANFID_QUATECH,
+		.prodid	= PRODID_QUATECH_DUAL_RS232_D1,
+		.multi	= 2,
+	}, {
+		.manfid	= MANFID_QUATECH,
+		.prodid	= PRODID_QUATECH_DUAL_RS232_G,
+		.multi	= 2,
+	}, {
+		.manfid	= MANFID_QUATECH,
+		.prodid	= PRODID_QUATECH_QUAD_RS232,
+		.multi	= 4,
+	}, {
+		.manfid	= MANFID_SOCKET,
+		.prodid	= PRODID_SOCKET_DUAL_RS232,
+		.multi	= 2,
+		.config	= quirk_config_socket,
+	}, {
+		.manfid	= MANFID_SOCKET,
+		.prodid	= ~0,
+		.multi	= -1,
+		.config	= quirk_config_socket,
+	}
+};
+
+
+static int serial_config(struct pcmcia_device * link);
+
+
+static void serial_remove(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+	int i;
+
+	dev_dbg(&link->dev, "serial_release\n");
+
+	/*
+	 * Recheck to see if the device is still configured.
+	 */
+	for (i = 0; i < info->ndev; i++)
+		serial8250_unregister_port(info->line[i]);
+
+	if (!info->slave)
+		pcmcia_disable_device(link);
+}
+
+static int serial_suspend(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+	int i;
+
+	for (i = 0; i < info->ndev; i++)
+		serial8250_suspend_port(info->line[i]);
+
+	return 0;
+}
+
+static int serial_resume(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+	int i;
+
+	for (i = 0; i < info->ndev; i++)
+		serial8250_resume_port(info->line[i]);
+
+	if (info->quirk && info->quirk->wakeup)
+		info->quirk->wakeup(link);
+
+	return 0;
+}
+
+static int serial_probe(struct pcmcia_device *link)
+{
+	struct serial_info *info;
+
+	dev_dbg(&link->dev, "serial_attach()\n");
+
+	/* Create new serial device */
+	info = kzalloc(sizeof (*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+	info->p_dev = link;
+	link->priv = info;
+
+	link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
+	if (do_sound)
+		link->config_flags |= CONF_ENABLE_SPKR;
+
+	return serial_config(link);
+}
+
+static void serial_detach(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+
+	dev_dbg(&link->dev, "serial_detach\n");
+
+	/*
+	 * Ensure that the ports have been released.
+	 */
+	serial_remove(link);
+
+	/* free bits */
+	kfree(info);
+}
+
+/*====================================================================*/
+
+static int setup_serial(struct pcmcia_device *handle, struct serial_info * info,
+			unsigned int iobase, int irq)
+{
+	struct uart_8250_port uart;
+	int line;
+
+	memset(&uart, 0, sizeof(uart));
+	uart.port.iobase = iobase;
+	uart.port.irq = irq;
+	uart.port.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
+	uart.port.uartclk = 1843200;
+	uart.port.dev = &handle->dev;
+	if (buggy_uart)
+		uart.port.flags |= UPF_BUGGY_UART;
+
+	if (info->quirk && info->quirk->setup)
+		info->quirk->setup(handle, &uart);
+
+	line = serial8250_register_8250_port(&uart);
+	if (line < 0) {
+		pr_err("serial_cs: serial8250_register_8250_port() at 0x%04lx, irq %d failed\n",
+							(unsigned long)iobase, irq);
+		return -EINVAL;
+	}
+
+	info->line[info->ndev] = line;
+	info->ndev++;
+
+	return 0;
+}
+
+/*====================================================================*/
+
+static int pfc_config(struct pcmcia_device *p_dev)
+{
+	unsigned int port = 0;
+	struct serial_info *info = p_dev->priv;
+
+	if ((p_dev->resource[1]->end != 0) &&
+		(resource_size(p_dev->resource[1]) == 8)) {
+		port = p_dev->resource[1]->start;
+		info->slave = 1;
+	} else if ((info->manfid == MANFID_OSITECH) &&
+		(resource_size(p_dev->resource[0]) == 0x40)) {
+		port = p_dev->resource[0]->start + 0x28;
+		info->slave = 1;
+	}
+	if (info->slave)
+		return setup_serial(p_dev, info, port, p_dev->irq);
+
+	dev_warn(&p_dev->dev, "no usable port range found, giving up\n");
+	return -ENODEV;
+}
+
+static int simple_config_check(struct pcmcia_device *p_dev, void *priv_data)
+{
+	static const int size_table[2] = { 8, 16 };
+	int *try = priv_data;
+
+	if (p_dev->resource[0]->start == 0)
+		return -ENODEV;
+
+	if ((*try & 0x1) == 0)
+		p_dev->io_lines = 16;
+
+	if (p_dev->resource[0]->end != size_table[(*try >> 1)])
+		return -ENODEV;
+
+	p_dev->resource[0]->end = 8;
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
+
+	return pcmcia_request_io(p_dev);
+}
+
+static int simple_config_check_notpicky(struct pcmcia_device *p_dev,
+					void *priv_data)
+{
+	static const unsigned int base[5] = { 0x3f8, 0x2f8, 0x3e8, 0x2e8, 0x0 };
+	int j;
+
+	if (p_dev->io_lines > 3)
+		return -ENODEV;
+
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
+	p_dev->resource[0]->end = 8;
+
+	for (j = 0; j < 5; j++) {
+		p_dev->resource[0]->start = base[j];
+		p_dev->io_lines = base[j] ? 16 : 3;
+		if (!pcmcia_request_io(p_dev))
+			return 0;
+	}
+	return -ENODEV;
+}
+
+static int simple_config(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+	int i = -ENODEV, try;
+
+	/* First pass: look for a config entry that looks normal.
+	 * Two tries: without IO aliases, then with aliases */
+	link->config_flags |= CONF_AUTO_SET_VPP;
+	for (try = 0; try < 4; try++)
+		if (!pcmcia_loop_config(link, simple_config_check, &try))
+			goto found_port;
+
+	/* Second pass: try to find an entry that isn't picky about
+	   its base address, then try to grab any standard serial port
+	   address, and finally try to get any free port. */
+	if (!pcmcia_loop_config(link, simple_config_check_notpicky, NULL))
+		goto found_port;
+
+	dev_warn(&link->dev, "no usable port range found, giving up\n");
+	return -1;
+
+found_port:
+	if (info->multi && (info->manfid == MANFID_3COM))
+		link->config_index &= ~(0x08);
+
+	/*
+	 * Apply any configuration quirks.
+	 */
+	if (info->quirk && info->quirk->config)
+		info->quirk->config(link);
+
+	i = pcmcia_enable_device(link);
+	if (i != 0)
+		return -1;
+	return setup_serial(link, info, link->resource[0]->start, link->irq);
+}
+
+static int multi_config_check(struct pcmcia_device *p_dev, void *priv_data)
+{
+	int *multi = priv_data;
+
+	if (p_dev->resource[1]->end)
+		return -EINVAL;
+
+	/* The quad port cards have bad CIS's, so just look for a
+	   window larger than 8 ports and assume it will be right */
+	if (p_dev->resource[0]->end <= 8)
+		return -EINVAL;
+
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
+	p_dev->resource[0]->end = *multi * 8;
+
+	if (pcmcia_request_io(p_dev))
+		return -ENODEV;
+	return 0;
+}
+
+static int multi_config_check_notpicky(struct pcmcia_device *p_dev,
+				       void *priv_data)
+{
+	int *base2 = priv_data;
+
+	if (!p_dev->resource[0]->end || !p_dev->resource[1]->end ||
+		p_dev->resource[0]->start + 8 != p_dev->resource[1]->start)
+		return -ENODEV;
+
+	p_dev->resource[0]->end = p_dev->resource[1]->end = 8;
+	p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
+	p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
+
+	if (pcmcia_request_io(p_dev))
+		return -ENODEV;
+
+	*base2 = p_dev->resource[0]->start + 8;
+	return 0;
+}
+
+static int multi_config(struct pcmcia_device *link)
+{
+	struct serial_info *info = link->priv;
+	int i, base2 = 0;
+
+	/* First, look for a generic full-sized window */
+	if (!pcmcia_loop_config(link, multi_config_check, &info->multi))
+		base2 = link->resource[0]->start + 8;
+	else {
+		/* If that didn't work, look for two windows */
+		info->multi = 2;
+		if (pcmcia_loop_config(link, multi_config_check_notpicky,
+				       &base2)) {
+			dev_warn(&link->dev, "no usable port range "
+			       "found, giving up\n");
+			return -ENODEV;
+		}
+	}
+
+	if (!link->irq)
+		dev_warn(&link->dev, "no usable IRQ found, continuing...\n");
+
+	/*
+	 * Apply any configuration quirks.
+	 */
+	if (info->quirk && info->quirk->config)
+		info->quirk->config(link);
+
+	i = pcmcia_enable_device(link);
+	if (i != 0)
+		return -ENODEV;
+
+	/* The Oxford Semiconductor OXCF950 cards are in fact single-port:
+	 * 8 registers are for the UART, the others are extra registers.
+	 * Siemen's MC45 PCMCIA (Possio's GCC) is OXCF950 based too.
+	 */
+	if (info->manfid == MANFID_OXSEMI || (info->manfid == MANFID_POSSIO &&
+				info->prodid == PRODID_POSSIO_GCC)) {
+		int err;
+
+		if (link->config_index == 1 ||
+		    link->config_index == 3) {
+			err = setup_serial(link, info, base2,
+					link->irq);
+			base2 = link->resource[0]->start;
+		} else {
+			err = setup_serial(link, info, link->resource[0]->start,
+					link->irq);
+		}
+		info->c950ctrl = base2;
+
+		/*
+		 * FIXME: We really should wake up the port prior to
+		 * handing it over to the serial layer.
+		 */
+		if (info->quirk && info->quirk->wakeup)
+			info->quirk->wakeup(link);
+
+		return 0;
+	}
+
+	setup_serial(link, info, link->resource[0]->start, link->irq);
+	for (i = 0; i < info->multi - 1; i++)
+		setup_serial(link, info, base2 + (8 * i),
+				link->irq);
+	return 0;
+}
+
+static int serial_check_for_multi(struct pcmcia_device *p_dev,  void *priv_data)
+{
+	struct serial_info *info = p_dev->priv;
+
+	if (!p_dev->resource[0]->end)
+		return -EINVAL;
+
+	if ((!p_dev->resource[1]->end) && (p_dev->resource[0]->end % 8 == 0))
+		info->multi = p_dev->resource[0]->end >> 3;
+
+	if ((p_dev->resource[1]->end) && (p_dev->resource[0]->end == 8)
+		&& (p_dev->resource[1]->end == 8))
+		info->multi = 2;
+
+	return 0; /* break */
+}
+
+
+static int serial_config(struct pcmcia_device * link)
+{
+	struct serial_info *info = link->priv;
+	int i;
+
+	dev_dbg(&link->dev, "serial_config\n");
+
+	/* Is this a compliant multifunction card? */
+	info->multi = (link->socket->functions > 1);
+
+	/* Is this a multiport card? */
+	info->manfid = link->manf_id;
+	info->prodid = link->card_id;
+
+	for (i = 0; i < ARRAY_SIZE(quirks); i++)
+		if ((quirks[i].manfid == ~0 ||
+		     quirks[i].manfid == info->manfid) &&
+		    (quirks[i].prodid == ~0 ||
+		     quirks[i].prodid == info->prodid)) {
+			info->quirk = &quirks[i];
+			break;
+		}
+
+	/* Another check for dual-serial cards: look for either serial or
+	   multifunction cards that ask for appropriate IO port ranges */
+	if ((info->multi == 0) &&
+	    (link->has_func_id) &&
+	    (link->socket->pcmcia_pfc == 0) &&
+	    ((link->func_id == CISTPL_FUNCID_MULTI) ||
+	     (link->func_id == CISTPL_FUNCID_SERIAL)))
+		pcmcia_loop_config(link, serial_check_for_multi, info);
+
+	/*
+	 * Apply any multi-port quirk.
+	 */
+	if (info->quirk && info->quirk->multi != -1)
+		info->multi = info->quirk->multi;
+
+	dev_info(&link->dev,
+		"trying to set up [0x%04x:0x%04x] (pfc: %d, multi: %d, quirk: %p)\n",
+		link->manf_id, link->card_id,
+		link->socket->pcmcia_pfc, info->multi, info->quirk);
+	if (link->socket->pcmcia_pfc)
+		i = pfc_config(link);
+	else if (info->multi > 1)
+		i = multi_config(link);
+	else
+		i = simple_config(link);
+
+	if (i || info->ndev == 0)
+		goto failed;
+
+	/*
+	 * Apply any post-init quirk.  FIXME: This should really happen
+	 * before we register the port, since it might already be in use.
+	 */
+	if (info->quirk && info->quirk->post)
+		if (info->quirk->post(link))
+			goto failed;
+
+	return 0;
+
+failed:
+	dev_warn(&link->dev, "failed to initialize\n");
+	serial_remove(link);
+	return -ENODEV;
+}
+
+static const struct pcmcia_device_id serial_ids[] = {
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0057, 0x0021),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0089, 0x110a),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0104, 0x000a),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0105, 0x0d0a),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0105, 0x0e0a),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0105, 0xea15),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0109, 0x0501),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0138, 0x110a),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0140, 0x000a),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0143, 0x3341),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0143, 0xc0ab),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x016c, 0x0081),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x021b, 0x0101),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x08a1, 0xc0ab),
+	PCMCIA_PFC_DEVICE_PROD_ID123(1, "MEGAHERTZ", "CC/XJEM3288", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x04cd2988, 0x46a52d63),
+	PCMCIA_PFC_DEVICE_PROD_ID123(1, "MEGAHERTZ", "CC/XJEM3336", "DATA/FAX/CELL ETHERNET MODEM", 0xf510db04, 0x0143b773, 0x46a52d63),
+	PCMCIA_PFC_DEVICE_PROD_ID123(1, "MEGAHERTZ", "EM1144T", "PCMCIA MODEM", 0xf510db04, 0x856d66c8, 0xbd6c43ef),
+	PCMCIA_PFC_DEVICE_PROD_ID123(1, "MEGAHERTZ", "XJEM1144/CCEM1144", "PCMCIA MODEM", 0xf510db04, 0x52d21e1e, 0xbd6c43ef),
+	PCMCIA_PFC_DEVICE_PROD_ID13(1, "Xircom", "CEM28", 0x2e3ee845, 0x0ea978ea),
+	PCMCIA_PFC_DEVICE_PROD_ID13(1, "Xircom", "CEM33", 0x2e3ee845, 0x80609023),
+	PCMCIA_PFC_DEVICE_PROD_ID13(1, "Xircom", "CEM56", 0x2e3ee845, 0xa650c32a),
+	PCMCIA_PFC_DEVICE_PROD_ID13(1, "Xircom", "REM10", 0x2e3ee845, 0x76df1d29),
+	PCMCIA_PFC_DEVICE_PROD_ID13(1, "Xircom", "XEM5600", 0x2e3ee845, 0xf1403719),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "AnyCom", "Fast Ethernet + 56K COMBO", 0x578ba6e7, 0xb0ac62c4),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "ATKK", "LM33-PCM-T", 0xba9eb7e2, 0x077c174e),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "D-Link", "DME336T", 0x1a424a1c, 0xb23897ff),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Gateway 2000", "XJEM3336", 0xdd9989be, 0x662c394c),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Grey Cell", "GCS3000", 0x2a151fac, 0x48b932ae),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Linksys", "EtherFast 10&100 + 56K PC Card (PCMLM56)", 0x0733cc81, 0xb3765033),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "LINKSYS", "PCMLM336", 0xf7cb0b07, 0x7a821b58),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MEGAHERTZ", "XJEM1144/CCEM1144", 0xf510db04, 0x52d21e1e),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "MICRO RESEARCH", "COMBO-L/M-336", 0xb2ced065, 0x3ced0555),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "NEC", "PK-UG-J001" ,0x18df0ba0 ,0x831b1064),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Diamonds Modem+Ethernet", 0xc2f80cd, 0x656947b9),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Ositech", "Trumpcard:Jack of Hearts Modem+Ethernet", 0xc2f80cd, 0xdc9ba5ed),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "PCMCIAs", "ComboCard", 0xdcfe12d3, 0xcd8906cc),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "PCMCIAs", "LanModem", 0xdcfe12d3, 0xc67c648f),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "TDK", "GlobalNetworker 3410/3412", 0x1eae9475, 0xd9a93bed),
+	PCMCIA_PFC_DEVICE_PROD_ID12(1, "Xircom", "CreditCard Ethernet+Modem II", 0x2e3ee845, 0xeca401bf),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0032, 0x0e01),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0032, 0x0a05),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0032, 0x0b05),
+	PCMCIA_PFC_DEVICE_MANF_CARD(1, 0x0032, 0x1101),
+	PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0104, 0x0070),
+	PCMCIA_MFC_DEVICE_MANF_CARD(1, 0x0101, 0x0562),
+	PCMCIA_MFC_DEVICE_MANF_CARD(1, 0x0104, 0x0070),
+	PCMCIA_MFC_DEVICE_MANF_CARD(1, 0x016c, 0x0020),
+	PCMCIA_MFC_DEVICE_PROD_ID123(1, "APEX DATA", "MULTICARD", "ETHERNET-MODEM", 0x11c2da09, 0x7289dc5d, 0xaad95e1f),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "IBM", "Home and Away 28.8 PC Card       ", 0xb569a6e5, 0x5bd4ff2c),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "IBM", "Home and Away Credit Card Adapter", 0xb569a6e5, 0x4bdf15c3),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1, "IBM", "w95 Home and Away Credit Card ", 0xb569a6e5, 0xae911c15),
+	PCMCIA_MFC_DEVICE_PROD_ID1(1, "Motorola MARQUIS", 0xf03e4e77),
+	PCMCIA_MFC_DEVICE_PROD_ID2(1, "FAX/Modem/Ethernet Combo Card ", 0x1ed59302),
+	PCMCIA_DEVICE_MANF_CARD(0x0089, 0x0301),
+	PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x0276),
+	PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0039),
+	PCMCIA_DEVICE_MANF_CARD(0x0104, 0x0006),
+	PCMCIA_DEVICE_MANF_CARD(0x0105, 0x0101), /* TDK DF2814 */
+	PCMCIA_DEVICE_MANF_CARD(0x0105, 0x100a), /* Xircom CM-56G */
+	PCMCIA_DEVICE_MANF_CARD(0x0105, 0x3e0a), /* TDK DF5660 */
+	PCMCIA_DEVICE_MANF_CARD(0x0105, 0x410a),
+	PCMCIA_DEVICE_MANF_CARD(0x0107, 0x0002), /* USRobotics 14,400 */
+	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0d50),
+	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0d51),
+	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0d52),
+	PCMCIA_DEVICE_MANF_CARD(0x010b, 0x0d53),
+	PCMCIA_DEVICE_MANF_CARD(0x010b, 0xd180),
+	PCMCIA_DEVICE_MANF_CARD(0x0115, 0x3330), /* USRobotics/SUN 14,400 */
+	PCMCIA_DEVICE_MANF_CARD(0x0124, 0x0100), /* Nokia DTP-2 ver II */
+	PCMCIA_DEVICE_MANF_CARD(0x0134, 0x5600), /* LASAT COMMUNICATIONS A/S */
+	PCMCIA_DEVICE_MANF_CARD(0x0137, 0x000e),
+	PCMCIA_DEVICE_MANF_CARD(0x0137, 0x001b),
+	PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0025),
+	PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0045),
+	PCMCIA_DEVICE_MANF_CARD(0x0137, 0x0052),
+	PCMCIA_DEVICE_MANF_CARD(0x016c, 0x0006), /* Psion 56K+Fax */
+	PCMCIA_DEVICE_MANF_CARD(0x0200, 0x0001), /* MultiMobile */
+	PCMCIA_DEVICE_PROD_ID134("ADV", "TECH", "COMpad-32/85", 0x67459937, 0x916d02ba, 0x8fbe92ae),
+	PCMCIA_DEVICE_PROD_ID124("GATEWAY2000", "CC3144", "PCMCIA MODEM", 0x506bccae, 0xcb3685f1, 0xbd6c43ef),
+	PCMCIA_DEVICE_PROD_ID14("MEGAHERTZ", "PCMCIA MODEM", 0xf510db04, 0xbd6c43ef),
+	PCMCIA_DEVICE_PROD_ID124("TOSHIBA", "T144PF", "PCMCIA MODEM", 0xb4585a1a, 0x7271409c, 0xbd6c43ef),
+	PCMCIA_DEVICE_PROD_ID123("FUJITSU", "FC14F ", "MBH10213", 0x6ee5a3d8, 0x30ead12b, 0xb00f05a0),
+	PCMCIA_DEVICE_PROD_ID123("Novatel Wireless", "Merlin UMTS Modem", "U630", 0x32607776, 0xd9e73b13, 0xe87332e),
+	PCMCIA_DEVICE_PROD_ID13("MEGAHERTZ", "V.34 PCMCIA MODEM", 0xf510db04, 0xbb2cce4a),
+	PCMCIA_DEVICE_PROD_ID12("Brain Boxes", "Bluetooth PC Card", 0xee138382, 0xd4ce9b02),
+	PCMCIA_DEVICE_PROD_ID12("CIRRUS LOGIC", "FAX MODEM", 0xe625f451, 0xcecd6dfa),
+	PCMCIA_DEVICE_PROD_ID12("COMPAQ", "PCMCIA 28800 FAX/DATA MODEM", 0xa3a3062c, 0x8cbd7c76),
+	PCMCIA_DEVICE_PROD_ID12("COMPAQ", "PCMCIA 33600 FAX/DATA MODEM", 0xa3a3062c, 0x5a00ce95),
+	PCMCIA_DEVICE_PROD_ID12("Computerboards, Inc.", "PCM-COM422", 0xd0b78f51, 0x7e2d49ed),
+	PCMCIA_DEVICE_PROD_ID12("Dr. Neuhaus", "FURY CARD 14K4", 0x76942813, 0x8b96ce65),
+	PCMCIA_DEVICE_PROD_ID12("IBM", "ISDN/56K/GSM", 0xb569a6e5, 0xfee5297b),
+	PCMCIA_DEVICE_PROD_ID12("Intelligent", "ANGIA FAX/MODEM", 0xb496e65e, 0xf31602a6),
+	PCMCIA_DEVICE_PROD_ID12("Intel", "MODEM 2400+", 0x816cc815, 0x412729fb),
+	PCMCIA_DEVICE_PROD_ID12("Intertex", "IX34-PCMCIA", 0xf8a097e3, 0x97880447),
+	PCMCIA_DEVICE_PROD_ID12("IOTech Inc ", "PCMCIA Dual RS-232 Serial Port Card", 0x3bd2d898, 0x92abc92f),
+	PCMCIA_DEVICE_PROD_ID12("MACRONIX", "FAX/MODEM", 0x668388b3, 0x3f9bdf2f),
+	PCMCIA_DEVICE_PROD_ID12("Multi-Tech", "MT1432LT", 0x5f73be51, 0x0b3e2383),
+	PCMCIA_DEVICE_PROD_ID12("Multi-Tech", "MT2834LT", 0x5f73be51, 0x4cd7c09e),
+	PCMCIA_DEVICE_PROD_ID12("OEM      ", "C288MX     ", 0xb572d360, 0xd2385b7a),
+	PCMCIA_DEVICE_PROD_ID12("Option International", "V34bis GSM/PSTN Data/Fax Modem", 0x9d7cd6f5, 0x5cb8bf41),
+	PCMCIA_DEVICE_PROD_ID12("PCMCIA   ", "C336MX     ", 0x99bcafe9, 0xaa25bcab),
+	PCMCIA_DEVICE_PROD_ID12("Quatech Inc", "PCMCIA Dual RS-232 Serial Port Card", 0xc4420b35, 0x92abc92f),
+	PCMCIA_DEVICE_PROD_ID12("Quatech Inc", "Dual RS-232 Serial Port PC Card", 0xc4420b35, 0x031a380d),
+	PCMCIA_DEVICE_PROD_ID12("Telia", "SurfinBird 560P/A+", 0xe2cdd5e, 0xc9314b38),
+	PCMCIA_DEVICE_PROD_ID1("Smart Serial Port", 0x2d8ce292),
+	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "PCMCIA", "EN2218-LAN/MODEM", 0x281f1c5d, 0x570f348e, "cis/PCMLM28.cis"),
+	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "PCMCIA", "UE2218-LAN/MODEM", 0x281f1c5d, 0x6fdcacee, "cis/PCMLM28.cis"),
+	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "Psion Dacom", "Gold Card V34 Ethernet", 0xf5f025c2, 0x338e8155, "cis/PCMLM28.cis"),
+	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "Psion Dacom", "Gold Card V34 Ethernet GSM", 0xf5f025c2, 0x4ae85d35, "cis/PCMLM28.cis"),
+	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "LINKSYS", "PCMLM28", 0xf7cb0b07, 0x66881874, "cis/PCMLM28.cis"),
+	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "TOSHIBA", "Modem/LAN Card", 0xb4585a1a, 0x53f922f8, "cis/PCMLM28.cis"),
+	PCMCIA_MFC_DEVICE_CIS_PROD_ID12(1, "DAYNA COMMUNICATIONS", "LAN AND MODEM MULTIFUNCTION", 0x8fdf8f89, 0xdd5ed9e8, "cis/DP83903.cis"),
+	PCMCIA_MFC_DEVICE_CIS_PROD_ID4(1, "NSC MF LAN/Modem", 0x58fc6056, "cis/DP83903.cis"),
+	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x0556, "cis/3CCFEM556.cis"),
+	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0175, 0x0000, "cis/DP83903.cis"),
+	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x0035, "cis/3CXEM556.cis"),
+	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x003d, "cis/3CXEM556.cis"),
+	PCMCIA_DEVICE_CIS_PROD_ID12("Sierra Wireless", "AC850", 0xd85f6206, 0x42a2c018, "cis/SW_8xx_SER.cis"), /* Sierra Wireless AC850 3G Network Adapter R1 */
+	PCMCIA_DEVICE_CIS_PROD_ID12("Sierra Wireless", "AC860", 0xd85f6206, 0x698f93db, "cis/SW_8xx_SER.cis"), /* Sierra Wireless AC860 3G Network Adapter R1 */
+	PCMCIA_DEVICE_CIS_PROD_ID12("Sierra Wireless", "AC710/AC750", 0xd85f6206, 0x761b11e0, "cis/SW_7xx_SER.cis"),  /* Sierra Wireless AC710/AC750 GPRS Network Adapter R1 */
+	PCMCIA_DEVICE_CIS_MANF_CARD(0x0192, 0xa555, "cis/SW_555_SER.cis"),  /* Sierra Aircard 555 CDMA 1xrtt Modem -- pre update */
+	PCMCIA_DEVICE_CIS_MANF_CARD(0x013f, 0xa555, "cis/SW_555_SER.cis"),  /* Sierra Aircard 555 CDMA 1xrtt Modem -- post update */
+	PCMCIA_DEVICE_CIS_PROD_ID12("MultiTech", "PCMCIA 56K DataFax", 0x842047ee, 0xc2efcf03, "cis/MT5634ZLX.cis"),
+	PCMCIA_DEVICE_CIS_PROD_ID12("ADVANTECH", "COMpad-32/85B-2", 0x96913a85, 0x27ab5437, "cis/COMpad2.cis"),
+	PCMCIA_DEVICE_CIS_PROD_ID12("ADVANTECH", "COMpad-32/85B-4", 0x96913a85, 0xcec8f102, "cis/COMpad4.cis"),
+	PCMCIA_DEVICE_CIS_PROD_ID123("ADVANTECH", "COMpad-32/85", "1.0", 0x96913a85, 0x8fbe92ae, 0x0877b627, "cis/COMpad2.cis"),
+	PCMCIA_DEVICE_CIS_PROD_ID2("RS-COM 2P", 0xad20b156, "cis/RS-COM-2P.cis"),
+	PCMCIA_DEVICE_CIS_MANF_CARD(0x0013, 0x0000, "cis/GLOBETROTTER.cis"),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CARD: SL100  1.00.",0x19ca78af,0xf964f42b),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CARD: SL100",0x19ca78af,0x71d98e83),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CARD: SL232  1.00.",0x19ca78af,0x69fb7490),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c1997.","SERIAL CARD: SL232",0x19ca78af,0xb6bc0235),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CARD: CF232",0x63f2e0bd,0xb9e175d3),
+	PCMCIA_DEVICE_PROD_ID12("ELAN DIGITAL SYSTEMS LTD, c2000.","SERIAL CARD: CF232-5",0x63f2e0bd,0xfce33442),
+	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232",0x3beb8cf2,0x171e7190),
+	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF232-5",0x3beb8cf2,0x20da4262),
+	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF428",0x3beb8cf2,0xea5dd57d),
+	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: CF500",0x3beb8cf2,0xd77255fa),
+	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: IC232",0x3beb8cf2,0x6a709903),
+	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: SL232",0x3beb8cf2,0x18430676),
+	PCMCIA_DEVICE_PROD_ID12("Elan","Serial Port: XL232",0x3beb8cf2,0x6f933767),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: CF332",0x3beb8cf2,0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL332",0x3beb8cf2,0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL385",0x3beb8cf2,0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(0,"Elan","Serial+Parallel Port: SP230",0x3beb8cf2,0xdb9e58bc),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: CF332",0x3beb8cf2,0x16dc1ba7),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL332",0x3beb8cf2,0x19816c41),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL385",0x3beb8cf2,0x64112029),
+	PCMCIA_MFC_DEVICE_PROD_ID12(1,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(2,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4),
+	PCMCIA_MFC_DEVICE_PROD_ID12(3,"Elan","Serial Port: SL432",0x3beb8cf2,0x1cce7ac4),
+	PCMCIA_DEVICE_MANF_CARD(0x0279, 0x950b),
+	/* too generic */
+	/* PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0160, 0x0002), */
+	/* PCMCIA_MFC_DEVICE_MANF_CARD(1, 0x0160, 0x0002), */
+	PCMCIA_DEVICE_FUNC_ID(2),
+	PCMCIA_DEVICE_NULL,
+};
+MODULE_DEVICE_TABLE(pcmcia, serial_ids);
+
+MODULE_FIRMWARE("cis/PCMLM28.cis");
+MODULE_FIRMWARE("cis/DP83903.cis");
+MODULE_FIRMWARE("cis/3CCFEM556.cis");
+MODULE_FIRMWARE("cis/3CXEM556.cis");
+MODULE_FIRMWARE("cis/SW_8xx_SER.cis");
+MODULE_FIRMWARE("cis/SW_7xx_SER.cis");
+MODULE_FIRMWARE("cis/SW_555_SER.cis");
+MODULE_FIRMWARE("cis/MT5634ZLX.cis");
+MODULE_FIRMWARE("cis/COMpad2.cis");
+MODULE_FIRMWARE("cis/COMpad4.cis");
+MODULE_FIRMWARE("cis/RS-COM-2P.cis");
+
+static struct pcmcia_driver serial_cs_driver = {
+	.owner		= THIS_MODULE,
+	.name		= "serial_cs",
+	.probe		= serial_probe,
+	.remove		= serial_detach,
+	.id_table	= serial_ids,
+	.suspend	= serial_suspend,
+	.resume		= serial_resume,
+};
+module_pcmcia_driver(serial_cs_driver);
+
+MODULE_LICENSE("GPL");