Initial import

1 files changed, 217 insertions, 0 deletions

diff --git a/arch/mips/txx9/jmr3927/setup.c b/arch/mips/txx9/jmr3927/setup.c
new file mode 100644
index 000000000..3206f76f3
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/setup.c
@@ -0,0 +1,217 @@
+/*
+ *  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  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  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.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ahennessy@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <asm/reboot.h>
+#include <asm/txx9pio.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/jmr3927.h>
+#include <asm/mipsregs.h>
+
+static void jmr3927_machine_restart(char *command)
+{
+	local_irq_disable();
+#if 1	/* Resetting PCI bus */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI, JMR3927_IOC_RESET_ADDR);
+	(void)jmr3927_ioc_reg_in(JMR3927_IOC_RESET_ADDR);	/* flush WB */
+	mdelay(1);
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+#endif
+	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_CPU, JMR3927_IOC_RESET_ADDR);
+	/* fallback */
+	(*_machine_halt)();
+}
+
+static void __init jmr3927_time_init(void)
+{
+	tx3927_time_init(0, 1);
+}
+
+#define DO_WRITE_THROUGH
+
+static void jmr3927_board_init(void);
+
+static void __init jmr3927_mem_setup(void)
+{
+	set_io_port_base(JMR3927_PORT_BASE + JMR3927_PCIIO);
+
+	_machine_restart = jmr3927_machine_restart;
+
+	/* cache setup */
+	{
+		unsigned int conf;
+#ifdef DO_WRITE_THROUGH
+		int mips_config_cwfon = 0;
+		int mips_config_wbon = 0;
+#else
+		int mips_config_cwfon = 1;
+		int mips_config_wbon = 1;
+#endif
+
+		conf = read_c0_conf();
+		conf &= ~(TX39_CONF_WBON | TX39_CONF_CWFON);
+		conf |= mips_config_wbon ? TX39_CONF_WBON : 0;
+		conf |= mips_config_cwfon ? TX39_CONF_CWFON : 0;
+
+		write_c0_conf(conf);
+		write_c0_cache(0);
+	}
+
+	/* initialize board */
+	jmr3927_board_init();
+
+	tx3927_sio_init(0, 1 << 1); /* ch1: noCTS */
+}
+
+static void __init jmr3927_pci_setup(void)
+{
+#ifdef CONFIG_PCI
+	int extarb = !(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB);
+	struct pci_controller *c;
+
+	c = txx9_alloc_pci_controller(&txx9_primary_pcic,
+				      JMR3927_PCIMEM, JMR3927_PCIMEM_SIZE,
+				      JMR3927_PCIIO, JMR3927_PCIIO_SIZE);
+	register_pci_controller(c);
+	if (!extarb) {
+		/* Reset PCI Bus */
+		jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+		udelay(100);
+		jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
+				    JMR3927_IOC_RESET_ADDR);
+		udelay(100);
+		jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+	}
+	tx3927_pcic_setup(c, JMR3927_SDRAM_SIZE, extarb);
+	tx3927_setup_pcierr_irq();
+#endif /* CONFIG_PCI */
+}
+
+static void __init jmr3927_board_init(void)
+{
+	txx9_cpu_clock = JMR3927_CORECLK;
+	/* SDRAMC are configured by PROM */
+
+	/* ROMC */
+	tx3927_romcptr->cr[1] = JMR3927_ROMCE1 | 0x00030048;
+	tx3927_romcptr->cr[2] = JMR3927_ROMCE2 | 0x000064c8;
+	tx3927_romcptr->cr[3] = JMR3927_ROMCE3 | 0x0003f698;
+	tx3927_romcptr->cr[5] = JMR3927_ROMCE5 | 0x0000f218;
+
+	/* Pin selection */
+	tx3927_ccfgptr->pcfg &= ~TX3927_PCFG_SELALL;
+	tx3927_ccfgptr->pcfg |=
+		TX3927_PCFG_SELSIOC(0) | TX3927_PCFG_SELSIO_ALL |
+		(TX3927_PCFG_SELDMA_ALL & ~TX3927_PCFG_SELDMA(1));
+
+	tx3927_setup();
+
+	/* PIO[15:12] connected to LEDs */
+	__raw_writel(0x0000f000, &tx3927_pioptr->dir);
+	gpio_request(11, "dipsw1");
+	gpio_request(10, "dipsw2");
+
+	jmr3927_pci_setup();
+
+	/* SIO0 DTR on */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);
+
+	jmr3927_led_set(0);
+
+	printk(KERN_INFO
+	       "JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n",
+	       jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK,
+	       jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK,
+	       jmr3927_dipsw1(), jmr3927_dipsw2(),
+	       jmr3927_dipsw3(), jmr3927_dipsw4());
+}
+
+/* This trick makes rtc-ds1742 driver usable as is. */
+static unsigned long jmr3927_swizzle_addr_b(unsigned long port)
+{
+	if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR)
+		return port;
+	port = (port & 0xffff0000) | (port & 0x7fff << 1);
+#ifdef __BIG_ENDIAN
+	return port;
+#else
+	return port | 1;
+#endif
+}
+
+static void __init jmr3927_rtc_init(void)
+{
+	static struct resource __initdata res = {
+		.start	= JMR3927_IOC_NVRAMB_ADDR - IO_BASE,
+		.end	= JMR3927_IOC_NVRAMB_ADDR - IO_BASE + 0x800 - 1,
+		.flags	= IORESOURCE_MEM,
+	};
+	platform_device_register_simple("rtc-ds1742", -1, &res, 1);
+}
+
+static void __init jmr3927_mtd_init(void)
+{
+	int i;
+
+	for (i = 0; i < 2; i++)
+		tx3927_mtd_init(i);
+}
+
+static void __init jmr3927_device_init(void)
+{
+	unsigned long iocled_base = JMR3927_IOC_LED_ADDR - IO_BASE;
+#ifdef __LITTLE_ENDIAN
+	iocled_base |= 1;
+#endif
+	__swizzle_addr_b = jmr3927_swizzle_addr_b;
+	jmr3927_rtc_init();
+	tx3927_wdt_init();
+	jmr3927_mtd_init();
+	txx9_iocled_init(iocled_base, -1, 8, 1, "green", NULL);
+}
+
+struct txx9_board_vec jmr3927_vec __initdata = {
+	.system = "Toshiba JMR_TX3927",
+	.prom_init = jmr3927_prom_init,
+	.mem_setup = jmr3927_mem_setup,
+	.irq_setup = jmr3927_irq_setup,
+	.time_init = jmr3927_time_init,
+	.device_init = jmr3927_device_init,
+#ifdef CONFIG_PCI
+	.pci_map_irq = jmr3927_pci_map_irq,
+#endif
+};