Initial import

5 files changed, 480 insertions, 0 deletions

diff --git a/arch/arm/mach-gemini/include/mach/entry-macro.S b/arch/arm/mach-gemini/include/mach/entry-macro.S
new file mode 100644
index 000000000..f044e430b
--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/entry-macro.S
@@ -0,0 +1,33 @@
+/*
+ * Low-level IRQ helper macros for Gemini platform.
+ *
+ *  Copyright (C) 2001-2006 Storlink, Corp.
+ *  Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#include <mach/hardware.h>
+
+#define IRQ_STATUS	0x14
+
+	.macro  get_irqnr_preamble, base, tmp
+	.endm
+
+	.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+	ldr     \irqstat, =IO_ADDRESS(GEMINI_INTERRUPT_BASE + IRQ_STATUS)
+	ldr     \irqnr, [\irqstat]
+	cmp     \irqnr, #0
+	beq     2313f
+	mov     \tmp, \irqnr
+	mov     \irqnr, #0
+2312:
+	tst     \tmp, #1
+	bne     2313f
+	add     \irqnr, \irqnr, #1
+	mov     \tmp, \tmp, lsr #1
+	cmp     \irqnr, #31
+	bcc     2312b
+2313:
+	.endm
diff --git a/arch/arm/mach-gemini/include/mach/global_reg.h b/arch/arm/mach-gemini/include/mach/global_reg.h
new file mode 100644
index 000000000..de7ff7e84
--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/global_reg.h
@@ -0,0 +1,278 @@
+/*
+ *  This file contains the hardware definitions for Gemini.
+ *
+ *  Copyright (C) 2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * 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.
+ */
+#ifndef __MACH_GLOBAL_REG_H
+#define __MACH_GLOBAL_REG_H
+
+/* Global Word ID Register*/
+#define GLOBAL_ID			0x00
+
+#define CHIP_ID(reg)			((reg) >> 8)
+#define CHIP_REVISION(reg)		((reg) & 0xFF)
+
+/* Global Status Register */
+#define GLOBAL_STATUS			0x04
+
+#define CPU_BIG_ENDIAN			(1 << 31)
+#define PLL_OSC_30M			(1 << 30)	/* else 60MHz */
+
+#define OPERATION_MODE_MASK		(0xF << 26)
+#define OPM_IDDQ			(0xF << 26)
+#define OPM_NAND			(0xE << 26)
+#define OPM_RING			(0xD << 26)
+#define OPM_DIRECT_BOOT			(0xC << 26)
+#define OPM_USB1_PHY_TEST		(0xB << 26)
+#define OPM_USB0_PHY_TEST		(0xA << 26)
+#define OPM_SATA1_PHY_TEST		(0x9 << 26)
+#define OPM_SATA0_PHY_TEST		(0x8 << 26)
+#define OPM_ICE_ARM			(0x7 << 26)
+#define OPM_ICE_FARADAY			(0x6 << 26)
+#define OPM_PLL_BYPASS			(0x5 << 26)
+#define OPM_DEBUG			(0x4 << 26)
+#define OPM_BURN_IN			(0x3 << 26)
+#define OPM_MBIST			(0x2 << 26)
+#define OPM_SCAN			(0x1 << 26)
+#define OPM_REAL			(0x0 << 26)
+
+#define FLASH_TYPE_MASK			(0x3 << 24)
+#define FLASH_TYPE_NAND_2K		(0x3 << 24)
+#define FLASH_TYPE_NAND_512		(0x2 << 24)
+#define FLASH_TYPE_PARALLEL		(0x1 << 24)
+#define FLASH_TYPE_SERIAL		(0x0 << 24)
+/* if parallel */
+#define FLASH_WIDTH_16BIT		(1 << 23)	/* else 8 bit */
+/* if serial */
+#define FLASH_ATMEL			(1 << 23)	/* else STM */
+
+#define FLASH_SIZE_MASK			(0x3 << 21)
+#define NAND_256M			(0x3 << 21)	/* and more */
+#define NAND_128M			(0x2 << 21)
+#define NAND_64M			(0x1 << 21)
+#define NAND_32M			(0x0 << 21)
+#define ATMEL_16M			(0x3 << 21)	/* and more */
+#define ATMEL_8M			(0x2 << 21)
+#define ATMEL_4M_2M			(0x1 << 21)
+#define ATMEL_1M			(0x0 << 21)	/* and less */
+#define STM_32M				(1 << 22)	/* and more */
+#define STM_16M				(0 << 22)	/* and less */
+
+#define FLASH_PARALLEL_HIGH_PIN_CNT	(1 << 20)	/* else low pin cnt */
+
+#define CPU_AHB_RATIO_MASK		(0x3 << 18)
+#define CPU_AHB_1_1			(0x0 << 18)
+#define CPU_AHB_3_2			(0x1 << 18)
+#define CPU_AHB_24_13			(0x2 << 18)
+#define CPU_AHB_2_1			(0x3 << 18)
+
+#define REG_TO_AHB_SPEED(reg)		((((reg) >> 15) & 0x7) * 10 + 130)
+#define AHB_SPEED_TO_REG(x)		((((x - 130)) / 10) << 15)
+
+/* it is posible to override some settings, use >> OVERRIDE_xxxx_SHIFT */
+#define OVERRIDE_FLASH_TYPE_SHIFT	16
+#define OVERRIDE_FLASH_WIDTH_SHIFT	16
+#define OVERRIDE_FLASH_SIZE_SHIFT	16
+#define OVERRIDE_CPU_AHB_RATIO_SHIFT	15
+#define OVERRIDE_AHB_SPEED_SHIFT	15
+
+/* Global PLL Control Register */
+#define GLOBAL_PLL_CTRL			0x08
+
+#define PLL_BYPASS			(1 << 31)
+#define PLL_POWER_DOWN			(1 << 8)
+#define PLL_CONTROL_Q			(0x1F << 0)
+
+/* Global Soft Reset Control Register */
+#define GLOBAL_RESET			0x0C
+
+#define RESET_GLOBAL			(1 << 31)
+#define RESET_CPU1			(1 << 30)
+#define RESET_TVE			(1 << 28)
+#define RESET_SATA1			(1 << 27)
+#define RESET_SATA0			(1 << 26)
+#define RESET_CIR			(1 << 25)
+#define RESET_EXT_DEV			(1 << 24)
+#define RESET_WD			(1 << 23)
+#define RESET_GPIO2			(1 << 22)
+#define RESET_GPIO1			(1 << 21)
+#define RESET_GPIO0			(1 << 20)
+#define RESET_SSP			(1 << 19)
+#define RESET_UART			(1 << 18)
+#define RESET_TIMER			(1 << 17)
+#define RESET_RTC			(1 << 16)
+#define RESET_INT1			(1 << 15)
+#define RESET_INT0			(1 << 14)
+#define RESET_LCD			(1 << 13)
+#define RESET_LPC			(1 << 12)
+#define RESET_APB			(1 << 11)
+#define RESET_DMA			(1 << 10)
+#define RESET_USB1			(1 << 9)
+#define RESET_USB0			(1 << 8)
+#define RESET_PCI			(1 << 7)
+#define RESET_GMAC1			(1 << 6)
+#define RESET_GMAC0			(1 << 5)
+#define RESET_SECURITY			(1 << 4)
+#define RESET_RAID			(1 << 3)
+#define RESET_IDE			(1 << 2)
+#define RESET_FLASH			(1 << 1)
+#define RESET_DRAM			(1 << 0)
+
+/* Global IO Pad Driving Capability Control Register */
+#define GLOBAL_IO_DRIVING_CTRL		0x10
+
+#define DRIVING_CURRENT_MASK		0x3
+
+/* here 00-4mA, 01-8mA, 10-12mA, 11-16mA */
+#define GPIO1_PADS_31_28_SHIFT		28
+#define GPIO0_PADS_31_16_SHIFT		26
+#define GPIO0_PADS_15_0_SHIFT		24
+#define PCI_AND_EXT_RESET_PADS_SHIFT	22
+#define IDE_PADS_SHIFT			20
+#define GMAC1_PADS_SHIFT		18
+#define GMAC0_PADS_SHIFT		16
+/* DRAM is not in mA and poorly documented */
+#define DRAM_CLOCK_PADS_SHIFT		8
+#define DRAM_DATA_PADS_SHIFT		4
+#define DRAM_CONTROL_PADS_SHIFT		0
+
+/* Global IO Pad Slew Rate Control Register */
+#define GLOBAL_IO_SLEW_RATE_CTRL	0x14
+
+#define GPIO1_PADS_31_28_SLOW		(1 << 10)
+#define GPIO0_PADS_31_16_SLOW		(1 << 9)
+#define GPIO0_PADS_15_0_SLOW		(1 << 8)
+#define PCI_PADS_SLOW			(1 << 7)
+#define IDE_PADS_SLOW			(1 << 6)
+#define GMAC1_PADS_SLOW			(1 << 5)
+#define GMAC0_PADS_SLOW			(1 << 4)
+#define DRAM_CLOCK_PADS_SLOW		(1 << 1)
+#define DRAM_IO_PADS_SLOW		(1 << 0)
+
+/*
+ * General skew control defines
+ * 16 steps, each step is around 0.2ns
+ */
+#define SKEW_MASK			0xF
+
+/* Global IDE PAD Skew Control Register */
+#define GLOBAL_IDE_SKEW_CTRL		0x18
+
+#define IDE1_HOST_STROBE_DELAY_SHIFT	28
+#define IDE1_DEVICE_STROBE_DELAY_SHIFT	24
+#define IDE1_OUTPUT_IO_SKEW_SHIFT	20
+#define IDE1_INPUT_IO_SKEW_SHIFT	16
+#define IDE0_HOST_STROBE_DELAY_SHIFT	12
+#define IDE0_DEVICE_STROBE_DELAY_SHIFT	8
+#define IDE0_OUTPUT_IO_SKEW_SHIFT	4
+#define IDE0_INPUT_IO_SKEW_SHIFT	0
+
+/* Global GMAC Control Pad Skew Control Register */
+#define GLOBAL_GMAC_CTRL_SKEW_CTRL	0x1C
+
+#define GMAC1_TXC_SKEW_SHIFT		28
+#define GMAC1_TXEN_SKEW_SHIFT		24
+#define GMAC1_RXC_SKEW_SHIFT		20
+#define GMAC1_RXDV_SKEW_SHIFT		16
+#define GMAC0_TXC_SKEW_SHIFT		12
+#define GMAC0_TXEN_SKEW_SHIFT		8
+#define GMAC0_RXC_SKEW_SHIFT		4
+#define GMAC0_RXDV_SKEW_SHIFT		0
+
+/* Global GMAC0 Data PAD Skew Control Register */
+#define GLOBAL_GMAC0_DATA_SKEW_CTRL	0x20
+/* Global GMAC1 Data PAD Skew Control Register */
+#define GLOBAL_GMAC1_DATA_SKEW_CTRL	0x24
+
+#define GMAC_TXD_SKEW_SHIFT(x)		(((x) * 4) + 16)
+#define GMAC_RXD_SKEW_SHIFT(x)		((x) * 4)
+
+/* CPU has two AHB busses. */
+
+/* Global Arbitration0 Control Register */
+#define GLOBAL_ARBITRATION0_CTRL	0x28
+
+#define BOOT_CONTROLLER_HIGH_PRIO	(1 << 3)
+#define DMA_BUS1_HIGH_PRIO		(1 << 2)
+#define CPU0_HIGH_PRIO			(1 << 0)
+
+/* Global Arbitration1 Control Register */
+#define GLOBAL_ARBITRATION1_CTRL	0x2C
+
+#define TVE_HIGH_PRIO			(1 << 9)
+#define PCI_HIGH_PRIO			(1 << 8)
+#define USB1_HIGH_PRIO			(1 << 7)
+#define USB0_HIGH_PRIO			(1 << 6)
+#define GMAC1_HIGH_PRIO			(1 << 5)
+#define GMAC0_HIGH_PRIO			(1 << 4)
+#define SECURITY_HIGH_PRIO		(1 << 3)
+#define RAID_HIGH_PRIO			(1 << 2)
+#define IDE_HIGH_PRIO			(1 << 1)
+#define DMA_BUS2_HIGH_PRIO		(1 << 0)
+
+/* Common bits for both arbitration registers */
+#define BURST_LENGTH_SHIFT		16
+#define BURST_LENGTH_MASK		(0x3F << 16)
+
+/* Miscellaneous Control Register */
+#define GLOBAL_MISC_CTRL		0x30
+
+#define MEMORY_SPACE_SWAP		(1 << 31)
+#define USB1_PLUG_MINIB			(1 << 30) /* else plug is mini-A */
+#define USB0_PLUG_MINIB			(1 << 29)
+#define GMAC_GMII			(1 << 28)
+#define GMAC_1_ENABLE			(1 << 27)
+/* TODO: define ATA/SATA bits */
+#define USB1_VBUS_ON			(1 << 23)
+#define USB0_VBUS_ON			(1 << 22)
+#define APB_CLKOUT_ENABLE		(1 << 21)
+#define TVC_CLKOUT_ENABLE		(1 << 20)
+#define EXT_CLKIN_ENABLE		(1 << 19)
+#define PCI_66MHZ			(1 << 18) /* else 33 MHz */
+#define PCI_CLKOUT_ENABLE		(1 << 17)
+#define LPC_CLKOUT_ENABLE		(1 << 16)
+#define USB1_WAKEUP_ON			(1 << 15)
+#define USB0_WAKEUP_ON			(1 << 14)
+/* TODO: define PCI idle detect bits */
+#define TVC_PADS_ENABLE			(1 << 9)
+#define SSP_PADS_ENABLE			(1 << 8)
+#define LCD_PADS_ENABLE			(1 << 7)
+#define LPC_PADS_ENABLE			(1 << 6)
+#define PCI_PADS_ENABLE			(1 << 5)
+#define IDE_PADS_ENABLE			(1 << 4)
+#define DRAM_PADS_POWER_DOWN		(1 << 3)
+#define NAND_PADS_DISABLE		(1 << 2)
+#define PFLASH_PADS_DISABLE		(1 << 1)
+#define SFLASH_PADS_DISABLE		(1 << 0)
+
+/* Global Clock Control Register */
+#define GLOBAL_CLOCK_CTRL		0x34
+
+#define POWER_STATE_G0			(1 << 31)
+#define POWER_STATE_S1			(1 << 30) /* else it is S3/S4 state */
+#define SECURITY_APB_AHB		(1 << 29)
+/* else Security APB clk will be 0.75xAHB */
+/* TODO: TVC clock divider */
+#define PCI_CLKRUN_ENABLE		(1 << 16)
+#define BOOT_CLK_DISABLE		(1 << 13)
+#define TVC_CLK_DISABLE			(1 << 12)
+#define FLASH_CLK_DISABLE		(1 << 11)
+#define DDR_CLK_DISABLE			(1 << 10)
+#define PCI_CLK_DISABLE			(1 << 9)
+#define IDE_CLK_DISABLE			(1 << 8)
+#define USB1_CLK_DISABLE		(1 << 7)
+#define USB0_CLK_DISABLE		(1 << 6)
+#define SATA1_CLK_DISABLE		(1 << 5)
+#define SATA0_CLK_DISABLE		(1 << 4)
+#define GMAC1_CLK_DISABLE		(1 << 3)
+#define GMAC0_CLK_DISABLE		(1 << 2)
+#define SECURITY_CLK_DISABLE		(1 << 1)
+
+/* TODO: other registers definitions if needed */
+
+#endif /* __MACH_GLOBAL_REG_H */
diff --git a/arch/arm/mach-gemini/include/mach/hardware.h b/arch/arm/mach-gemini/include/mach/hardware.h
new file mode 100644
index 000000000..98e7b0f28
--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/hardware.h
@@ -0,0 +1,74 @@
+/*
+ *  This file contains the hardware definitions for Gemini.
+ *
+ *  Copyright (C) 2001-2006 Storlink, Corp.
+ *  Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * 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.
+ */
+#ifndef __MACH_HARDWARE_H
+#define __MACH_HARDWARE_H
+
+/*
+ * Memory Map definitions
+ */
+#ifdef CONFIG_GEMINI_MEM_SWAP
+# define GEMINI_DRAM_BASE	0x00000000
+# define GEMINI_SRAM_BASE	0x70000000
+#else
+# define GEMINI_SRAM_BASE	0x00000000
+# define GEMINI_DRAM_BASE	0x10000000
+#endif
+#define GEMINI_FLASH_BASE	0x30000000
+#define GEMINI_GLOBAL_BASE	0x40000000
+#define GEMINI_WAQTCHDOG_BASE	0x41000000
+#define GEMINI_UART_BASE	0x42000000
+#define GEMINI_TIMER_BASE	0x43000000
+#define GEMINI_LCD_BASE		0x44000000
+#define GEMINI_RTC_BASE		0x45000000
+#define GEMINI_SATA_BASE	0x46000000
+#define GEMINI_LPC_HOST_BASE	0x47000000
+#define GEMINI_LPC_IO_BASE	0x47800000
+#define GEMINI_INTERRUPT_BASE	0x48000000
+/* TODO: Different interrupt controllers when SMP
+ * #define GEMINI_INTERRUPT0_BASE	0x48000000
+ * #define GEMINI_INTERRUPT1_BASE	0x49000000
+ */
+#define GEMINI_SSP_CTRL_BASE	0x4A000000
+#define GEMINI_POWER_CTRL_BASE	0x4B000000
+#define GEMINI_CIR_BASE		0x4C000000
+#define GEMINI_GPIO_BASE(x)	(0x4D000000 + (x) * 0x1000000)
+#define GEMINI_PCI_IO_BASE	0x50000000
+#define GEMINI_PCI_MEM_BASE	0x58000000
+#define GEMINI_TOE_BASE		0x60000000
+#define GEMINI_GMAC0_BASE	0x6000A000
+#define GEMINI_GMAC1_BASE	0x6000E000
+#define GEMINI_SECURITY_BASE	0x62000000
+#define GEMINI_IDE0_BASE	0x63000000
+#define GEMINI_IDE1_BASE	0x63400000
+#define GEMINI_RAID_BASE	0x64000000
+#define GEMINI_FLASH_CTRL_BASE	0x65000000
+#define GEMINI_DRAM_CTRL_BASE	0x66000000
+#define GEMINI_GENERAL_DMA_BASE	0x67000000
+#define GEMINI_USB0_BASE	0x68000000
+#define GEMINI_USB1_BASE	0x69000000
+#define GEMINI_BIG_ENDIAN_BASE	0x80000000
+
+#define GEMINI_TIMER1_BASE	GEMINI_TIMER_BASE
+#define GEMINI_TIMER2_BASE	(GEMINI_TIMER_BASE + 0x10)
+#define GEMINI_TIMER3_BASE	(GEMINI_TIMER_BASE + 0x20)
+
+/*
+ * UART Clock when System clk is 150MHz
+ */
+#define UART_CLK	48000000
+
+/*
+ * macro to get at IO space when running virtually
+ */
+#define IO_ADDRESS(x)	IOMEM((((x) & 0xFFF00000) >> 4) | ((x) & 0x000FFFFF) | 0xF0000000)
+
+#endif
diff --git a/arch/arm/mach-gemini/include/mach/irqs.h b/arch/arm/mach-gemini/include/mach/irqs.h
new file mode 100644
index 000000000..06bc47e77
--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/irqs.h
@@ -0,0 +1,53 @@
+/*
+ *  Copyright (C) 2001-2006 Storlink, Corp.
+ *  Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * 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.
+ */
+
+#ifndef __MACH_IRQS_H__
+#define __MACH_IRQS_H__
+
+#define IRQ_SERIRQ1	31
+#define IRQ_SERIRQ0	30
+#define IRQ_PCID	29
+#define IRQ_PCIC	28
+#define IRQ_PCIB	27
+#define IRQ_PWR		26
+#define IRQ_CIR		25
+#define IRQ_GPIO(x)	(22 + (x))
+#define IRQ_SSP		21
+#define IRQ_LPC		20
+#define IRQ_LCD		19
+#define IRQ_UART	18
+#define IRQ_RTC		17
+#define IRQ_TIMER3	16
+#define IRQ_TIMER2	15
+#define IRQ_TIMER1	14
+#define IRQ_FLASH	12
+#define IRQ_USB1	11
+#define IRQ_USB0	10
+#define IRQ_DMA		9
+#define IRQ_PCI		8
+#define IRQ_IPSEC	7
+#define IRQ_RAID	6
+#define IRQ_IDE1	5
+#define IRQ_IDE0	4
+#define IRQ_WATCHDOG	3
+#define IRQ_GMAC1	2
+#define IRQ_GMAC0	1
+#define IRQ_IPI		0
+
+#define NORMAL_IRQ_NUM	32
+
+#define GPIO_IRQ_BASE	NORMAL_IRQ_NUM
+#define GPIO_IRQ_NUM	(3 * 32)
+
+#define ARCH_TIMER_IRQ	IRQ_TIMER2
+
+#define NR_IRQS		(NORMAL_IRQ_NUM + GPIO_IRQ_NUM)
+
+#endif /* __MACH_IRQS_H__ */
diff --git a/arch/arm/mach-gemini/include/mach/uncompress.h b/arch/arm/mach-gemini/include/mach/uncompress.h
new file mode 100644
index 000000000..02e225673
--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/uncompress.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * Based on mach-pxa/include/mach/uncompress.h:
+ * Copyright:	(C) 2001 MontaVista Software Inc.
+ *
+ * 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.
+ */
+
+#ifndef __MACH_UNCOMPRESS_H
+#define __MACH_UNCOMPRESS_H
+
+#include <linux/serial_reg.h>
+#include <mach/hardware.h>
+
+static volatile unsigned long * const UART = (unsigned long *)GEMINI_UART_BASE;
+
+/*
+ * The following code assumes the serial port has already been
+ * initialized by the bootloader.  If you didn't setup a port in
+ * your bootloader then nothing will appear (which might be desired).
+ */
+static inline void putc(char c)
+{
+	while (!(UART[UART_LSR] & UART_LSR_THRE))
+		barrier();
+	UART[UART_TX] = c;
+}
+
+static inline void flush(void)
+{
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+
+#endif /* __MACH_UNCOMPRESS_H */