Merge branch 'for-rmk' of git://gitorious.org/linux-gemini/mainline into devel

Conflicts:
	arch/arm/mm/Kconfig

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

22 files changed, 1390 insertions, 0 deletions

diff --git a/arch/arm/mach-gemini/Kconfig b/arch/arm/mach-gemini/Kconfig
new file mode 100644
index 00000000000..515b75cf2e8
--- /dev/null
+++ b/arch/arm/mach-gemini/Kconfig
@@ -0,0 +1,19 @@
+if ARCH_GEMINI
+
+menu "Cortina Systems Gemini Implementations"
+
+config MACH_RUT100
+	bool "Teltonika RUT100"
+	select GEMINI_MEM_SWAP
+	help
+	  Say Y here if you intend to run this kernel on a
+	  Teltonika 3G Router RUT100.
+
+endmenu
+
+config GEMINI_MEM_SWAP
+	bool "Gemini memory is swapped"
+	help
+	  Say Y here if Gemini memory is swapped by bootloader.
+
+endif
diff --git a/arch/arm/mach-gemini/Makefile b/arch/arm/mach-gemini/Makefile
new file mode 100644
index 00000000000..719505b8182
--- /dev/null
+++ b/arch/arm/mach-gemini/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+
+obj-y			:= irq.o mm.o time.o devices.o gpio.o
+
+# Board-specific support
+obj-$(CONFIG_MACH_RUT100)	+= board-rut1xx.o
diff --git a/arch/arm/mach-gemini/Makefile.boot b/arch/arm/mach-gemini/Makefile.boot
new file mode 100644
index 00000000000..22a52c228d9
--- /dev/null
+++ b/arch/arm/mach-gemini/Makefile.boot
@@ -0,0 +1,9 @@
+ifeq ($(CONFIG_GEMINI_MEM_SWAP),y)
+   zreladdr-y	:= 0x00008000
+params_phys-y	:= 0x00000100
+initrd_phys-y	:= 0x00800000
+else
+   zreladdr-y	:= 0x10008000
+params_phys-y	:= 0x10000100
+initrd_phys-y	:= 0x10800000
+endif
diff --git a/arch/arm/mach-gemini/board-rut1xx.c b/arch/arm/mach-gemini/board-rut1xx.c
new file mode 100644
index 00000000000..e0de968e32a
--- /dev/null
+++ b/arch/arm/mach-gemini/board-rut1xx.c
@@ -0,0 +1,95 @@
+/*
+ *  Support for Teltonika RUT1xx
+ *
+ *  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.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/leds.h>
+#include <linux/input.h>
+#include <linux/gpio_keys.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include "common.h"
+
+static struct gpio_keys_button rut1xx_keys[] = {
+	{
+		.code		= KEY_SETUP,
+		.gpio		= 60,
+		.active_low	= 1,
+		.desc		= "Reset to defaults",
+		.type		= EV_KEY,
+	},
+};
+
+static struct gpio_keys_platform_data rut1xx_keys_data = {
+	.buttons	= rut1xx_keys,
+	.nbuttons	= ARRAY_SIZE(rut1xx_keys),
+};
+
+static struct platform_device rut1xx_keys_device = {
+	.name	= "gpio-keys",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &rut1xx_keys_data,
+	},
+};
+
+static struct gpio_led rut100_leds[] = {
+	{
+		.name			= "Power",
+		.default_trigger	= "heartbeat",
+		.gpio			= 17,
+	},
+	{
+		.name			= "GSM",
+		.default_trigger	= "default-on",
+		.gpio			= 7,
+		.active_low		= 1,
+	},
+};
+
+static struct gpio_led_platform_data rut100_leds_data = {
+	.num_leds	= ARRAY_SIZE(rut100_leds),
+	.leds		= rut100_leds,
+};
+
+static struct platform_device rut1xx_leds = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &rut100_leds_data,
+	},
+};
+
+static struct sys_timer rut1xx_timer = {
+	.init	= gemini_timer_init,
+};
+
+static void __init rut1xx_init(void)
+{
+	gemini_gpio_init();
+	platform_register_uart();
+	platform_register_pflash(SZ_8M, NULL, 0);
+	platform_device_register(&rut1xx_leds);
+	platform_device_register(&rut1xx_keys_device);
+}
+
+MACHINE_START(RUT100, "Teltonika RUT100")
+	.phys_io	= 0x7fffc000,
+	.io_pg_offst	= ((0xffffc000) >> 18) & 0xfffc,
+	.boot_params	= 0x100,
+	.map_io		= gemini_map_io,
+	.init_irq	= gemini_init_irq,
+	.timer		= &rut1xx_timer,
+	.init_machine	= rut1xx_init,
+MACHINE_END
diff --git a/arch/arm/mach-gemini/common.h b/arch/arm/mach-gemini/common.h
new file mode 100644
index 00000000000..9392834a214
--- /dev/null
+++ b/arch/arm/mach-gemini/common.h
@@ -0,0 +1,28 @@
+/*
+ * Common Gemini architecture functions
+ *
+ * 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 __GEMINI_COMMON_H__
+#define __GEMINI_COMMON_H__
+
+struct mtd_partition;
+
+extern void gemini_map_io(void);
+extern void gemini_init_irq(void);
+extern void gemini_timer_init(void);
+extern void gemini_gpio_init(void);
+
+/* Common platform devices registration functions */
+extern int platform_register_uart(void);
+extern int platform_register_pflash(unsigned int size,
+				    struct mtd_partition *parts,
+				    unsigned int nr_parts);
+
+#endif /* __GEMINI_COMMON_H__ */
diff --git a/arch/arm/mach-gemini/devices.c b/arch/arm/mach-gemini/devices.c
new file mode 100644
index 00000000000..6b525253d02
--- /dev/null
+++ b/arch/arm/mach-gemini/devices.c
@@ -0,0 +1,92 @@
+/*
+ * Common devices definition for Gemini
+ *
+ * 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 version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+#include <linux/mtd/physmap.h>
+
+#include <mach/irqs.h>
+#include <mach/hardware.h>
+#include <mach/global_reg.h>
+
+static struct plat_serial8250_port serial_platform_data[] = {
+	{
+		.membase	= (void *)IO_ADDRESS(GEMINI_UART_BASE),
+		.mapbase	= GEMINI_UART_BASE,
+		.irq		= IRQ_UART,
+		.uartclk	= UART_CLK,
+		.regshift	= 2,
+		.iotype		= UPIO_MEM,
+		.type		= PORT_16550A,
+		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_FIXED_TYPE,
+	},
+	{},
+};
+
+static struct platform_device serial_device = {
+	.name	= "serial8250",
+	.id	= PLAT8250_DEV_PLATFORM,
+	.dev	= {
+		.platform_data = serial_platform_data,
+	},
+};
+
+int platform_register_uart(void)
+{
+	return platform_device_register(&serial_device);
+}
+
+static struct resource flash_resource = {
+	.start	= GEMINI_FLASH_BASE,
+	.flags	= IORESOURCE_MEM,
+};
+
+static struct physmap_flash_data pflash_platform_data = {};
+
+static struct platform_device pflash_device = {
+	.name	= "physmap-flash",
+	.id	= 0,
+	.dev 	= {
+		.platform_data = &pflash_platform_data,
+	},
+	.resource = &flash_resource,
+	.num_resources = 1,
+};
+
+int platform_register_pflash(unsigned int size, struct mtd_partition *parts,
+			     unsigned int nr_parts)
+{
+	unsigned int reg;
+
+	reg = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_STATUS);
+
+	if ((reg & FLASH_TYPE_MASK) != FLASH_TYPE_PARALLEL)
+		return -ENXIO;
+
+	if (reg & FLASH_WIDTH_16BIT)
+		pflash_platform_data.width = 2;
+	else
+		pflash_platform_data.width = 1;
+
+	/* enable parallel flash pins and disable others */
+	reg = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL);
+	reg &= ~PFLASH_PADS_DISABLE;
+	reg |= SFLASH_PADS_DISABLE | NAND_PADS_DISABLE;
+	__raw_writel(reg, IO_ADDRESS(GEMINI_GLOBAL_BASE) + GLOBAL_MISC_CTRL);
+
+	flash_resource.end = flash_resource.start + size - 1;
+
+	pflash_platform_data.parts = parts;
+	pflash_platform_data.nr_parts = nr_parts;
+
+	return platform_device_register(&pflash_device);
+}
diff --git a/arch/arm/mach-gemini/gpio.c b/arch/arm/mach-gemini/gpio.c
new file mode 100644
index 00000000000..e7263854bc7
--- /dev/null
+++ b/arch/arm/mach-gemini/gpio.c
@@ -0,0 +1,232 @@
+/*
+ * Gemini gpiochip and interrupt routines
+ *
+ * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
+ *
+ * Based on plat-mxc/gpio.c:
+ *  MXC GPIO support. (c) 2008 Daniel Mack <daniel@caiaq.de>
+ *  Copyright 2008 Juergen Beisert, kernel@pengutronix.de
+ *
+ * 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/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+
+#include <mach/hardware.h>
+#include <mach/irqs.h>
+
+#define GPIO_BASE(x)		IO_ADDRESS(GEMINI_GPIO_BASE(x))
+
+/* GPIO registers definition */
+#define GPIO_DATA_OUT		0x0
+#define GPIO_DATA_IN		0x4
+#define GPIO_DIR		0x8
+#define GPIO_DATA_SET		0x10
+#define GPIO_DATA_CLR		0x14
+#define GPIO_PULL_EN		0x18
+#define GPIO_PULL_TYPE		0x1C
+#define GPIO_INT_EN		0x20
+#define GPIO_INT_STAT		0x24
+#define GPIO_INT_MASK		0x2C
+#define GPIO_INT_CLR		0x30
+#define GPIO_INT_TYPE		0x34
+#define GPIO_INT_BOTH_EDGE	0x38
+#define GPIO_INT_LEVEL		0x3C
+#define GPIO_DEBOUNCE_EN	0x40
+#define GPIO_DEBOUNCE_PRESCALE	0x44
+
+#define GPIO_PORT_NUM		3
+
+static void _set_gpio_irqenable(unsigned int base, unsigned int index,
+				int enable)
+{
+	unsigned int reg;
+
+	reg = __raw_readl(base + GPIO_INT_EN);
+	reg = (reg & (~(1 << index))) | (!!enable << index);
+	__raw_writel(reg, base + GPIO_INT_EN);
+}
+
+static void gpio_ack_irq(unsigned int irq)
+{
+	unsigned int gpio = irq_to_gpio(irq);
+	unsigned int base = GPIO_BASE(gpio / 32);
+
+	__raw_writel(1 << (gpio % 32), base + GPIO_INT_CLR);
+}
+
+static void gpio_mask_irq(unsigned int irq)
+{
+	unsigned int gpio = irq_to_gpio(irq);
+	unsigned int base = GPIO_BASE(gpio / 32);
+
+	_set_gpio_irqenable(base, gpio % 32, 0);
+}
+
+static void gpio_unmask_irq(unsigned int irq)
+{
+	unsigned int gpio = irq_to_gpio(irq);
+	unsigned int base = GPIO_BASE(gpio / 32);
+
+	_set_gpio_irqenable(base, gpio % 32, 1);
+}
+
+static int gpio_set_irq_type(unsigned int irq, unsigned int type)
+{
+	unsigned int gpio = irq_to_gpio(irq);
+	unsigned int gpio_mask = 1 << (gpio % 32);
+	unsigned int base = GPIO_BASE(gpio / 32);
+	unsigned int reg_both, reg_level, reg_type;
+
+	reg_type = __raw_readl(base + GPIO_INT_TYPE);
+	reg_level = __raw_readl(base + GPIO_INT_BOTH_EDGE);
+	reg_both = __raw_readl(base + GPIO_INT_BOTH_EDGE);
+
+	switch (type) {
+	case IRQ_TYPE_EDGE_BOTH:
+		reg_type &= ~gpio_mask;
+		reg_both |= gpio_mask;
+		break;
+	case IRQ_TYPE_EDGE_RISING:
+		reg_type &= ~gpio_mask;
+		reg_both &= ~gpio_mask;
+		reg_level &= ~gpio_mask;
+		break;
+	case IRQ_TYPE_EDGE_FALLING:
+		reg_type &= ~gpio_mask;
+		reg_both &= ~gpio_mask;
+		reg_level |= gpio_mask;
+		break;
+	case IRQ_TYPE_LEVEL_HIGH:
+		reg_type |= gpio_mask;
+		reg_level &= ~gpio_mask;
+		break;
+	case IRQ_TYPE_LEVEL_LOW:
+		reg_type |= gpio_mask;
+		reg_level |= gpio_mask;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	__raw_writel(reg_type, base + GPIO_INT_TYPE);
+	__raw_writel(reg_level, base + GPIO_INT_BOTH_EDGE);
+	__raw_writel(reg_both, base + GPIO_INT_BOTH_EDGE);
+
+	gpio_ack_irq(irq);
+
+	return 0;
+}
+
+static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	unsigned int gpio_irq_no, irq_stat;
+	unsigned int port = (unsigned int)get_irq_data(irq);
+
+	irq_stat = __raw_readl(GPIO_BASE(port) + GPIO_INT_STAT);
+
+	gpio_irq_no = GPIO_IRQ_BASE + port * 32;
+	for (; irq_stat != 0; irq_stat >>= 1, gpio_irq_no++) {
+
+		if ((irq_stat & 1) == 0)
+			continue;
+
+		BUG_ON(!(irq_desc[gpio_irq_no].handle_irq));
+		irq_desc[gpio_irq_no].handle_irq(gpio_irq_no,
+				&irq_desc[gpio_irq_no]);
+	}
+}
+
+static struct irq_chip gpio_irq_chip = {
+	.name = "GPIO",
+	.ack = gpio_ack_irq,
+	.mask = gpio_mask_irq,
+	.unmask = gpio_unmask_irq,
+	.set_type = gpio_set_irq_type,
+};
+
+static void _set_gpio_direction(struct gpio_chip *chip, unsigned offset,
+				int dir)
+{
+	unsigned int base = GPIO_BASE(offset / 32);
+	unsigned int reg;
+
+	reg = __raw_readl(base + GPIO_DIR);
+	if (dir)
+		reg |= 1 << (offset % 32);
+	else
+		reg &= ~(1 << (offset % 32));
+	__raw_writel(reg, base + GPIO_DIR);
+}
+
+static void gemini_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	unsigned int base = GPIO_BASE(offset / 32);
+
+	if (value)
+		__raw_writel(1 << (offset % 32), base + GPIO_DATA_SET);
+	else
+		__raw_writel(1 << (offset % 32), base + GPIO_DATA_CLR);
+}
+
+static int gemini_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	unsigned int base = GPIO_BASE(offset / 32);
+
+	return (__raw_readl(base + GPIO_DATA_IN) >> (offset % 32)) & 1;
+}
+
+static int gemini_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	_set_gpio_direction(chip, offset, 0);
+	return 0;
+}
+
+static int gemini_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
+					int value)
+{
+	_set_gpio_direction(chip, offset, 1);
+	gemini_gpio_set(chip, offset, value);
+	return 0;
+}
+
+static struct gpio_chip gemini_gpio_chip = {
+	.label			= "Gemini",
+	.direction_input	= gemini_gpio_direction_input,
+	.get			= gemini_gpio_get,
+	.direction_output	= gemini_gpio_direction_output,
+	.set			= gemini_gpio_set,
+	.base			= 0,
+	.ngpio			= GPIO_PORT_NUM * 32,
+};
+
+void __init gemini_gpio_init(void)
+{
+	int i, j;
+
+	for (i = 0; i < GPIO_PORT_NUM; i++) {
+		/* disable, unmask and clear all interrupts */
+		__raw_writel(0x0, GPIO_BASE(i) + GPIO_INT_EN);
+		__raw_writel(0x0, GPIO_BASE(i) + GPIO_INT_MASK);
+		__raw_writel(~0x0, GPIO_BASE(i) + GPIO_INT_CLR);
+
+		for (j = GPIO_IRQ_BASE + i * 32;
+		     j < GPIO_IRQ_BASE + (i + 1) * 32; j++) {
+			set_irq_chip(j, &gpio_irq_chip);
+			set_irq_handler(j, handle_edge_irq);
+			set_irq_flags(j, IRQF_VALID);
+		}
+
+		set_irq_chained_handler(IRQ_GPIO(i), gpio_irq_handler);
+		set_irq_data(IRQ_GPIO(i), (void *)i);
+	}
+
+	BUG_ON(gpiochip_add(&gemini_gpio_chip));
+}
diff --git a/arch/arm/mach-gemini/include/mach/debug-macro.S b/arch/arm/mach-gemini/include/mach/debug-macro.S
new file mode 100644
index 00000000000..d04a6eaeae1
--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/debug-macro.S
@@ -0,0 +1,23 @@
+/*
+ * Debugging macro include header
+ *
+ *  Copyright (C) 1994-1999 Russell King
+ *  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 version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <mach/hardware.h>
+
+	.macro	addruart,rx
+	mrc	p15, 0, \rx, c1, c0
+	tst	\rx, #1					@ MMU enabled?
+	ldreq	\rx, =GEMINI_UART_BASE			@ physical
+	ldrne	\rx, =IO_ADDRESS(GEMINI_UART_BASE)	@ virtual
+	.endm
+
+#define UART_SHIFT	2
+#define FLOW_CONTROL
+#include <asm/hardware/debug-8250.S>
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 00000000000..1624f91a2b8
--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/entry-macro.S
@@ -0,0 +1,39 @@
+/*
+ * 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  disable_fiq
+	.endm
+
+	.macro  get_irqnr_preamble, base, tmp
+	.endm
+
+	.macro  arch_ret_to_user, tmp1, tmp2
+	.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 00000000000..de7ff7e849f
--- /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/gpio.h b/arch/arm/mach-gemini/include/mach/gpio.h
new file mode 100644
index 00000000000..3bc2c70f298
--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/gpio.h
@@ -0,0 +1,25 @@
+/*
+ * Gemini gpiolib specific defines
+ *
+ * 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_GPIO_H__
+#define __MACH_GPIO_H__
+
+#include <mach/irqs.h>
+#include <asm-generic/gpio.h>
+
+#define gpio_get_value	__gpio_get_value
+#define gpio_set_value	__gpio_set_value
+#define gpio_cansleep	__gpio_cansleep
+
+#define gpio_to_irq(x)	((x) + GPIO_IRQ_BASE)
+#define irq_to_gpio(x)	((x) - GPIO_IRQ_BASE)
+
+#endif /* __MACH_GPIO_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 00000000000..de6752674c0
--- /dev/null
+++ b/arch/arm/mach-gemini/include/mach/hardware.h
@@ -0,0 +1,75 @@
+/*
+ *  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 Publ