[PATCH] Add support for OMAP3Stalker boards

["Jason" <lzg@ema-tech.com>]

This patche add omap3 board support for the EMA-Tech StalkerBoards. Base on
TI's EVM. 

>From ca9879de445ffa8063e79f43a715712eca9b335f Mon Sep 17 00:00:00 2001
From: Jason Lam <lzg@ema-tech.com>
Date: Wed, 3 Mar 2010 10:04:36 +0800
Subject: [PATCH] Add support for OMAP3Stalker boards


Signed-off-by: Jason Lam <lzg@ema-tech.com>
---
 arch/arm/mach-omap2/Kconfig              |   20 +
 arch/arm/mach-omap2/Makefile             |    2 +
 arch/arm/mach-omap2/board-omap3stalker.c |  922
++++++++++++++++++++++++++++++
 3 files changed, 944 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-omap2/board-omap3stalker.c

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index a8a3d1e..50386c8 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -82,6 +82,26 @@ config MACH_OMAP3517EVM
 	depends on ARCH_OMAP3
 	select OMAP_PACKAGE_CBB

+config MACH_SBC3530
+	bool "OMAP3 SBC STALKER board"
+	depends on ARCH_OMAP3
+
+choice
+	prompt STALKER_BOARD_TYPE
+	depends on MACH_SBC3530
+	default STALKER_EVM
+
+config STALKER_BOARD_TYPE_EVM
+	bool "Stalker EVM board"
+	help
+	  Select this option if you have a Stalker EVM board
+
+config STALKER_BOARD_TYPE_LK_S
+	bool "Stalker LK-S board"
+	help
+	  Select this option if you have a Stalker LK-S board
+endchoice
+
 config MACH_OMAP3_PANDORA
 	bool "OMAP3 Pandora"
 	depends on ARCH_OMAP3
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 2069fb3..51cfe4b 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -110,6 +110,8 @@ obj-$(CONFIG_MACH_OVERO)		+= board-overo.o \
 					   hsmmc.o
 obj-$(CONFIG_MACH_OMAP3EVM)		+= board-omap3evm.o \
 					   hsmmc.o
+obj-$(CONFIG_MACH_SBC3530)		+= board-omap3stalker.o \
+					   hsmmc.o
 obj-$(CONFIG_MACH_OMAP3_PANDORA)	+= board-omap3pandora.o \
 					   hsmmc.o
 obj-$(CONFIG_MACH_OMAP_3430SDP)		+= board-3430sdp.o \
diff --git a/arch/arm/mach-omap2/board-omap3stalker.c
b/arch/arm/mach-omap2/board-omap3stalker.c
new file mode 100644
index 0000000..bb70b46
--- /dev/null
+++ b/arch/arm/mach-omap2/board-omap3stalker.c
@@ -0,0 +1,922 @@
+/*
+ * linux/arch/arm/mach-omap2/board-omap3evm.c
+ *
+ * Copyright (C) 2008 Guangzhou EMA-Tech
+ *
+ * Modified from mach-omap2/board-omap3evm.c
+ *
+ * Initial code: Syed Mohammed Khasim
+ *
+ * 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/platform_device.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#include <linux/input.h>
+#include <linux/input/matrix_keypad.h>
+#include <linux/leds.h>
+#include <linux/interrupt.h>
+
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+#include <linux/i2c/twl.h>
+#include <linux/usb/otg.h>
+#if defined(CONFIG_STALKER_BOARD_TYPE_EVM)
+#include <linux/dm9000.h>
+#elif defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+#include <linux/smsc911x.h>
+#include <linux/gpio_keys.h>
+#include <linux/i2c/at24.h>
+#endif
+
+#include <linux/regulator/machine.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/flash.h>
+
+#include <plat/board.h>
+#include <plat/mux.h>
+#include <plat/gpmc.h>
+#include <plat/nand.h>
+#include <plat/usb.h>
+#include <plat/common.h>
+#include <plat/control.h>
+#include <plat/mcspi.h>
+#include <plat/clock.h>
+#include <plat/omap-pm.h>
+#include <plat/display.h>
+#include <plat/timer-gp.h>
+
+#include "mux.h"
+#include "sdram-micron-mt46h32m32lf-6.h"
+#include "hsmmc.h"
+#include "pm.h"
+
+static struct mtd_partition omap3stalker_nand_partitions[] = {
+	/* All the partition sizes are listed in terms of NAND block size */
+	{
+	 .name = "X-Loader",
+	 .offset = 0,
+	 .size = 4 * (SZ_128K),
+	 .mask_flags = MTD_WRITEABLE,
+	 },
+	{
+	 .name = "U-Boot",
+	 .offset = MTDPART_OFS_APPEND,
+	 .size = 15 * (SZ_128K),
+	 .mask_flags = MTD_WRITEABLE,
+	 },
+	{
+	 .name = "U-Boot Env",
+	 .offset = MTDPART_OFS_APPEND,
+	 .size = 1 * (SZ_128K)},
+	{
+	 .name = "Kernel",
+	 .offset = MTDPART_OFS_APPEND,
+	 .size = 32 * (SZ_128K)},
+	{
+	 .name = "File System",
+	 .size = MTDPART_SIZ_FULL,
+	 .offset = MTDPART_OFS_APPEND,
+	 },
+};
+
+static struct omap_nand_platform_data omap3stalker_nand_data = {
+	.parts = omap3stalker_nand_partitions,
+	.nr_parts = ARRAY_SIZE(omap3stalker_nand_partitions),
+	.nand_setup = NULL,
+	.dma_channel = -1,	/* disable DMA in OMAP NAND driver */
+	.dev_ready = NULL,
+};
+
+static struct resource omap3stalker_nand_resource = {
+	.flags = IORESOURCE_MEM,
+};
+
+static struct platform_device omap3stalker_nand_device = {
+	.name = "omap2-nand",
+	.id = 0,
+	.dev = {
+		.platform_data = &omap3stalker_nand_data,
+		},
+	.num_resources = 1,
+	.resource = &omap3stalker_nand_resource,
+};
+
+void __init omap3stalker_flash_init(void)
+{
+	u8 cs = 0;
+	u8 nandcs = GPMC_CS_NUM + 1;
+	u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
+
+	while (cs < GPMC_CS_NUM) {
+		u32 ret = 0;
+		ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
+
+		if ((ret & 0xC00) == 0x800) {
+			/* Found it!! */
+			if (nandcs > GPMC_CS_NUM)
+				nandcs = cs;
+		}
+		cs++;
+	}
+	if (nandcs > GPMC_CS_NUM) {
+		printk(KERN_INFO "NAND: Unable to find configuration "
+		       " in GPMC\n ");
+		return;
+	}
+
+	if (nandcs < GPMC_CS_NUM) {
+		omap3stalker_nand_data.cs = nandcs;
+		omap3stalker_nand_data.gpmc_cs_baseaddr =
+		    (void *) (gpmc_base_add + GPMC_CS0_BASE +
+			      nandcs * GPMC_CS_SIZE);
+		omap3stalker_nand_data.gpmc_baseaddr =
+		    (void *) (gpmc_base_add);
+
+		if (platform_device_register(&omap3stalker_nand_device) <
+		    0) {
+			printk(KERN_ERR
+			       "Unable to register NAND device\n");
+		}
+	}
+}
+
+/*
+**EVM use dm9000 and LK-S use smsc922x
+*/
+#if defined(CONFIG_STALKER_BOARD_TYPE_EVM)
+#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+/* DM9000 */
+#define OMAP3EVM_ETHR_START	0x30000000
+#define OMAP3EVM_ETHR_GPIO_IRQ	21
+#define OMAP3EVM_DM9K_CS	6
+
+static struct resource omap3_dm9k_resource[] = {
+	[0] = {
+	       .start = OMAP3EVM_ETHR_START,
+	       .end = OMAP3EVM_ETHR_START + 3,
+	       .flags = IORESOURCE_MEM,
+	       },
+	[1] = {
+	       .start = OMAP3EVM_ETHR_START + (1 << 10),
+	       .end = OMAP3EVM_ETHR_START + 0x4 + 0x7c,
+	       .flags = IORESOURCE_MEM,
+	       },
+	[2] = {
+	       .start = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
+	       .end = OMAP_GPIO_IRQ(OMAP3EVM_ETHR_GPIO_IRQ),
+	       .flags = IORESOURCE_IRQ,
+	       },
+};
+
+static struct dm9000_plat_data omap3_dm9k_platdata = {
+	.flags = DM9000_PLATF_16BITONLY,
+};
+
+static struct platform_device omap3_device_dm9k = {
+	.name = "dm9000",
+	.id = -1,
+	.num_resources = ARRAY_SIZE(omap3_dm9k_resource),
+	.resource = &omap3_dm9k_resource[0],
+	.dev = {
+		.platform_data = &omap3_dm9k_platdata,
+		}
+};
+
+static inline void __init omap3_init_dm9k(void)
+{
+	int eth_cs;
+	unsigned long cs_mem_base;
+	unsigned int rate;
+	struct clk *l3ck;
+	int eth_gpio = 0;
+	int ret = 0;
+	printk("omap3GPMC_init_for_DM9000\n");
+	eth_cs = OMAP3EVM_DM9K_CS;
+
+	l3ck = clk_get(NULL, "l3_ck");
+	if (IS_ERR(l3ck))
+		rate = 100000000;
+	else
+		rate = clk_get_rate(l3ck);
+
+	if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
+		printk(KERN_ERR "Failed to request GPMC mem for dm9000\n");
+		return;
+	}
+	printk("eth cs_mem_base:%lx\n", cs_mem_base);
+	omap3_dm9k_resource[0].start = cs_mem_base + 0x0;
+	printk("omap3_dm9k_resource[0].start:%x\n",
+	       omap3_dm9k_resource[0].start);
+	omap3_dm9k_resource[0].end = cs_mem_base + 0x3;
+	omap3_dm9k_resource[1].start = cs_mem_base + (1 << 10);
+	printk("omap3_dm9k_resource[1].start:%x\n",
+	       omap3_dm9k_resource[1].start);
+	omap3_dm9k_resource[1].end = cs_mem_base + (1 << 10) + 0x7c;
+	udelay(100);
+
+	eth_gpio = OMAP3EVM_ETHR_GPIO_IRQ;
+	omap_mux_init_gpio(21, OMAP_PIN_INPUT_PULLUP);
+	omap3_dm9k_resource[2].start = OMAP_GPIO_IRQ(eth_gpio);
+	printk("omap3_dm9k_resource[2].start:%x\n",
+	       omap3_dm9k_resource[2].start);
+
+
+	ret = gpio_request(eth_gpio, "dm9000 IRQ");
+	if (ret < 0) {
+		printk(KERN_ERR
+		       "Failed to request GPIO %d for dm9000 IRQ\n",
+		       eth_gpio);
+		return;
+	}
+	gpio_direction_input(eth_gpio);
+
+	platform_device_register(&omap3_device_dm9k);
+}
+#endif
+#elif defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+ /*
+  **smsc
+  */
+#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+#define OMAP3STALKER_ETHR_START	0x2c000000
+#define OMAP3STALKER_ETHR_SIZE	1024
+#define OMAP3STALKER_ETHR_GPIO_IRQ	19
+#define OMAP3STALKER_SMC911X_CS	5
+
+static struct resource omap3stalker_smsc911x_resources[] = {
+	[0] = {
+	       .start = OMAP3STALKER_ETHR_START,
+	       .end =
+	       (OMAP3STALKER_ETHR_START + OMAP3STALKER_ETHR_SIZE - 1),
+	       .flags = IORESOURCE_MEM,
+	       },
+	[1] = {
+	       .start = OMAP_GPIO_IRQ(OMAP3STALKER_ETHR_GPIO_IRQ),
+	       .end = OMAP_GPIO_IRQ(OMAP3STALKER_ETHR_GPIO_IRQ),
+	       .flags = (IORESOURCE_IRQ | IRQF_TRIGGER_LOW),
+	       },
+};
+
+static struct smsc911x_platform_config smsc911x_config = {
+	.phy_interface = PHY_INTERFACE_MODE_MII,
+	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
+	.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
+	.flags = (SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS),
+};
+
+static struct platform_device omap3stalker_smsc911x_device = {
+	.name = "smsc911x",
+	.id = -1,
+	.num_resources = ARRAY_SIZE(omap3stalker_smsc911x_resources),
+	.resource = &omap3stalker_smsc911x_resources[0],
+	.dev = {
+		.platform_data = &smsc911x_config,
+		},
+};
+
+static inline void __init omap3stalker_init_smsc911x(void)
+{
+	int eth_cs;
+	struct clk *l3ck;
+	unsigned int rate;
+
+	eth_cs = OMAP3STALKER_SMC911X_CS;
+
+	l3ck = clk_get(NULL, "l3_ck");
+	if (IS_ERR(l3ck))
+		rate = 100000000;
+	else
+		rate = clk_get_rate(l3ck);
+
+	omap_mux_init_gpio(19, OMAP_PIN_INPUT_PULLUP);
+	if (gpio_request(OMAP3STALKER_ETHR_GPIO_IRQ, "SMC911x irq") < 0) {
+		printk(KERN_ERR
+		       "Failed to request GPIO%d for smc911x IRQ\n",
+		       OMAP3STALKER_ETHR_GPIO_IRQ);
+		return;
+	}
+
+	gpio_direction_input(OMAP3STALKER_ETHR_GPIO_IRQ);
+
+	platform_device_register(&omap3stalker_smsc911x_device);
+}
+
+#endif
+#endif
+
+/*
+ * OMAP3 DSS control signals
+ */
+#if defined(CONFIG_STALKER_BOARD_TYPE_EVM)
+#define DSS_ENABLE_GPIO	170
+#elif defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+#define DSS_ENABLE_GPIO	199	//from tps65930
+#define LCD_PANEL_BKLIGHT_GPIO	210	//from tps65930
+#endif
+
+#define ENABLE_VPLL2_DEV_GRP	0xE0
+
+static int lcd_enabled;
+static int dvi_enabled;
+
+static void __init omap3_stalker_display_init(void)
+{
+#if defined(CONFIG_STALKER_BOARD_TYPE_EVM)
+	int r;
+	r = gpio_request(DSS_ENABLE_GPIO, "dss_enable");
+	if (r) {
+		printk(KERN_ERR "failed to get dss_enable\n");
+		return;
+	}
+#endif
+	return;
+}
+
+static int omap3_stalker_enable_lcd(struct omap_dss_device *dssdev)
+{
+	if (dvi_enabled) {
+		printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
+		return -EINVAL;
+	}
+	gpio_set_value(DSS_ENABLE_GPIO, 1);
+#if defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+	gpio_set_value(LCD_PANEL_BKLIGHT_GPIO, 1);
+#endif
+	lcd_enabled = 1;
+	return 0;
+}
+
+static void omap3_stalker_disable_lcd(struct omap_dss_device *dssdev)
+{
+	gpio_set_value(DSS_ENABLE_GPIO, 0);
+#if defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+	gpio_set_value(LCD_PANEL_BKLIGHT_GPIO, 0);
+#endif
+
+	lcd_enabled = 0;
+}
+
+static struct omap_dss_device omap3_stalker_lcd_device = {
+	.name = "lcd",
+	.driver_name = "innolux_at_panel",
+	.phy.dpi.data_lines = 24,
+	.type = OMAP_DISPLAY_TYPE_DPI,
+	.platform_enable = omap3_stalker_enable_lcd,
+	.platform_disable = omap3_stalker_disable_lcd,
+};
+
+static int omap3_stalker_enable_tv(struct omap_dss_device *dssdev)
+{
+	return 0;
+}
+
+static void omap3_stalker_disable_tv(struct omap_dss_device *dssdev)
+{
+}
+
+static struct omap_dss_device omap3_stalker_tv_device = {
+	.name = "tv",
+	.driver_name = "venc",
+	.type = OMAP_DISPLAY_TYPE_VENC,
+#if defined(CONFIG_OMAP2_VENC_OUT_TYPE_SVIDEO)
+	.phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
+#elif defined(CONFIG_OMAP2_VENC_OUT_TYPE_COMPOSITE)
+	.u.venc.type = OMAP_DSS_VENC_TYPE_COMPOSITE,
+#endif
+	.platform_enable = omap3_stalker_enable_tv,
+	.platform_disable = omap3_stalker_disable_tv,
+};
+
+static int omap3_stalker_enable_dvi(struct omap_dss_device *dssdev)
+{
+	if (lcd_enabled) {
+		printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
+		return -EINVAL;
+	}
+	gpio_set_value(DSS_ENABLE_GPIO, 1);
+
+	dvi_enabled = 1;
+	return 0;
+}
+
+static void omap3_stalker_disable_dvi(struct omap_dss_device *dssdev)
+{
+	gpio_set_value(DSS_ENABLE_GPIO, 0);
+	dvi_enabled = 0;
+}
+
+static struct omap_dss_device omap3_stalker_dvi_device = {
+	.name = "dvi",
+	.driver_name = "generic_panel",
+	.type = OMAP_DISPLAY_TYPE_DPI,
+	.phy.dpi.data_lines = 24,
+	.platform_enable = omap3_stalker_enable_dvi,
+	.platform_disable = omap3_stalker_disable_dvi,
+};
+
+static struct omap_dss_device *omap3_stalker_dss_devices[] = {
+	&omap3_stalker_lcd_device,
+	&omap3_stalker_tv_device,
+	&omap3_stalker_dvi_device,
+};
+
+static struct omap_dss_board_info omap3_stalker_dss_data = {
+	.num_devices = ARRAY_SIZE(omap3_stalker_dss_devices),
+	.devices = omap3_stalker_dss_devices,
+	.default_device = &omap3_stalker_dvi_device,
+};
+
+static struct platform_device omap3_stalker_dss_device = {
+	.name = "omapdss",
+	.id = -1,
+	.dev = {
+		.platform_data = &omap3_stalker_dss_data,
+		},
+};
+
+static struct regulator_consumer_supply omap3stalker_vmmc1_supply = {
+	.supply = "vmmc",
+};
+
+static struct regulator_consumer_supply omap3stalker_vsim_supply = {
+	.supply = "vmmc_aux",
+};
+
+/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220
mA) */
+static struct regulator_init_data omap3stalker_vmmc1 = {
+	.constraints = {
+			.min_uV = 1850000,
+			.max_uV = 3150000,
+			.valid_modes_mask = REGULATOR_MODE_NORMAL
+			| REGULATOR_MODE_STANDBY,
+			.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
+			| REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
+			},
+	.num_consumer_supplies = 1,
+	.consumer_supplies = &omap3stalker_vmmc1_supply,
+};
+
+/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
+static struct regulator_init_data omap3stalker_vsim = {
+	.constraints = {
+			.min_uV = 1800000,
+			.max_uV = 3000000,
+			.valid_modes_mask = REGULATOR_MODE_NORMAL
+			| REGULATOR_MODE_STANDBY,
+			.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
+			| REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
+			},
+	.num_consumer_supplies = 1,
+	.consumer_supplies = &omap3stalker_vsim_supply,
+};
+
+static struct omap2_hsmmc_info mmc[] = {
+	{
+	 .mmc = 1,
+	 .wires = 4,
+	 .gpio_cd = -EINVAL,
+	 .gpio_wp = 23,
+	 },
+	{}			/* Terminator */
+};
+
+#if defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+static struct gpio_keys_button gpio_buttons[] = {
+	{
+	 .code = BTN_EXTRA,
+	 .gpio = 18,
+	 .desc = "user",
+	 .wakeup = 1,
+	 },
+};
+
+static struct gpio_keys_platform_data gpio_key_info = {
+	.buttons = gpio_buttons,
+	.nbuttons = ARRAY_SIZE(gpio_buttons),
+};
+
+static struct platform_device keys_gpio = {
+	.name = "gpio-keys",
+	.id = -1,
+	.dev = {
+		.platform_data = &gpio_key_info,
+		},
+};
+#endif
+
+static struct gpio_led gpio_leds[] = {
+#if defined(CONFIG_STALKER_BOARD_TYPE_EVM)
+
+#elif defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+	{
+	 .name = "stalker:D8:usr0",
+	 .default_trigger = "default-on",
+	 .gpio = 126,
+	 },
+	{
+	 .name = "stalker:D9:usr1",
+	 .default_trigger = "default-on",
+	 .gpio = 127,
+	 },
+	{
+	 .name = "stalker:D3:mmc0",
+	 .gpio = -EINVAL,	/* gets replaced */
+	 .active_low = true,
+	 .default_trigger = "mmc0",
+	 },
+	{
+	 .name = "stalker:D4:heartbeat",
+	 .gpio = -EINVAL,	/* gets replaced */
+	 .active_low = true,
+	 .default_trigger = "heartbeat",
+	 },
+#endif
+};
+
+static struct gpio_led_platform_data gpio_led_info = {
+	.leds = gpio_leds,
+	.num_leds = ARRAY_SIZE(gpio_leds),
+};
+
+static struct platform_device leds_gpio = {
+	.name = "leds-gpio",
+	.id = -1,
+	.dev = {
+		.platform_data = &gpio_led_info,
+		},
+};
+
+static int
+omap3stalker_twl_gpio_setup(struct device *dev,
+			    unsigned gpio, unsigned ngpio)
+{
+	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
+	omap_mux_init_gpio(23, OMAP_PIN_INPUT);
+	mmc[0].gpio_cd = gpio + 0;
+	omap2_hsmmc_init(mmc);
+
+	/* link regulators to MMC adapters */
+	omap3stalker_vmmc1_supply.dev = mmc[0].dev;
+	omap3stalker_vsim_supply.dev = mmc[0].dev;
+
+	/*
+	 * Most GPIOs are for USB OTG.  Some are mostly sent to
+	 * the P2 connector; notably LEDA for the LCD backlight.
+	 */
+
+	/* TWL4030_GPIO_MAX + 0 == ledA, LCD Backlight control */
+	gpio_request(gpio + TWL4030_GPIO_MAX, "EN_LCD_BKL");
+	gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
+
+	/* gpio + 7 == DVI Enable */
+	gpio_request(gpio + 7, "EN_DVI");
+	gpio_direction_output(gpio + 7, 0);
+
+#if defined(CONFIG_STALKER_BOARD_TYPE_EVM)
+#elif defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+	/* TWL4030_GPIO_MAX + 1 == ledB (out, mmc0) */
+	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
+	/* GPIO + 13 == ledsync (out, heartbeat) */
+	gpio_leds[3].gpio = gpio + 13;
+#endif
+	platform_device_register(&leds_gpio);
+
+	return 0;
+}
+
+static struct twl4030_gpio_platform_data omap3stalker_gpio_data = {
+	.gpio_base = OMAP_MAX_GPIO_LINES,
+	.irq_base = TWL4030_GPIO_IRQ_BASE,
+	.irq_end = TWL4030_GPIO_IRQ_END,
+	.use_leds = true,
+	.setup = omap3stalker_twl_gpio_setup,
+};
+
+static struct twl4030_usb_data omap3stalker_usb_data = {
+	.usb_mode = T2_USB_MODE_ULPI,
+};
+
+static int board_keymap[] = {
+	KEY(0, 0, KEY_LEFT),
+	KEY(0, 1, KEY_DOWN),
+	KEY(0, 2, KEY_ENTER),
+	KEY(0, 3, KEY_M),
+
+	KEY(1, 0, KEY_RIGHT),
+	KEY(1, 1, KEY_UP),
+	KEY(1, 2, KEY_I),
+	KEY(1, 3, KEY_N),
+
+	KEY(2, 0, KEY_A),
+	KEY(2, 1, KEY_E),
+	KEY(2, 2, KEY_J),
+	KEY(2, 3, KEY_O),
+
+	KEY(3, 0, KEY_B),
+	KEY(3, 1, KEY_F),
+	KEY(3, 2, KEY_K),
+	KEY(3, 3, KEY_P)
+};
+
+static struct matrix_keymap_data board_map_data = {
+	.keymap = board_keymap,
+	.keymap_size = ARRAY_SIZE(board_keymap),
+};
+
+static struct twl4030_keypad_data omap3stalker_kp_data = {
+	.keymap_data = &board_map_data,
+	.rows = 4,
+	.cols = 4,
+	.rep = 1,
+};
+
+static struct twl4030_madc_platform_data omap3stalker_madc_data = {
+	.irq_line = 1,
+};
+
+static struct twl4030_codec_audio_data omap3stalker_audio_data = {
+	.audio_mclk = 26000000,
+};
+
+static struct twl4030_codec_data omap3stalker_codec_data = {
+	.audio_mclk = 26000000,
+	.audio = &omap3stalker_audio_data,
+};
+
+static struct regulator_consumer_supply omap3_stalker_vdda_dac_supply = {
+	.supply = "vdda_dac",
+	.dev = &omap3_stalker_dss_device.dev,
+};
+
+/* VDAC for DSS driving S-Video */
+static struct regulator_init_data omap3_stalker_vdac = {
+	.constraints = {
+			.min_uV = 1800000,
+			.max_uV = 1800000,
+			.apply_uV = true,
+			.valid_modes_mask = REGULATOR_MODE_NORMAL
+			| REGULATOR_MODE_STANDBY,
+			.valid_ops_mask = REGULATOR_CHANGE_MODE
+			| REGULATOR_CHANGE_STATUS,
+			},
+	.num_consumer_supplies = 1,
+	.consumer_supplies = &omap3_stalker_vdda_dac_supply,
+};
+
+/* VPLL2 for digital video outputs */
+static struct regulator_consumer_supply omap3_stalker_vpll2_supply = {
+	.supply = "vdvi",
+	.dev = &omap3_stalker_lcd_device.dev,
+};
+
+static struct regulator_init_data omap3_stalker_vpll2 = {
+	.constraints = {
+			.name = "VDVI",
+			.min_uV = 1800000,
+			.max_uV = 1800000,
+			.apply_uV = true,
+			.valid_modes_mask = REGULATOR_MODE_NORMAL
+			| REGULATOR_MODE_STANDBY,
+			.valid_ops_mask = REGULATOR_CHANGE_MODE
+			| REGULATOR_CHANGE_STATUS,
+			},
+	.num_consumer_supplies = 1,
+	.consumer_supplies = &omap3_stalker_vpll2_supply,
+};
+
+static struct twl4030_platform_data omap3stalker_twldata = {
+	.irq_base = TWL4030_IRQ_BASE,
+	.irq_end = TWL4030_IRQ_END,
+
+	/* platform_data for children goes here */
+	.keypad = &omap3stalker_kp_data,
+	.madc = &omap3stalker_madc_data,
+	.usb = &omap3stalker_usb_data,
+	.gpio = &omap3stalker_gpio_data,
+	.codec = &omap3stalker_codec_data,
+	.vdac = &omap3_stalker_vdac,
+	.vpll2 = &omap3_stalker_vpll2,
+};
+
+static struct i2c_board_info __initdata omap3stalker_i2c_boardinfo[] = {
+	{
+	 I2C_BOARD_INFO("twl4030", 0x48),
+	 .flags = I2C_CLIENT_WAKE,
+	 .irq = INT_34XX_SYS_NIRQ,
+	 .platform_data = &omap3stalker_twldata,
+	 },
+};
+
+#ifdef CONFIG_STALKER_BOARD_TYPE_LK_S
+static struct at24_platform_data fram_info = {
+	.byte_len = (64 * 1024) / 8,
+	.page_size = 8192,
+	.flags = AT24_FLAG_ADDR16 | AT24_FLAG_IRUGO,
+};
+
+static struct i2c_board_info __initdata omap3stalker_i2c_boardinfo3[] = {
+	{
+	 I2C_BOARD_INFO("24c64", 0x50),
+	 .flags = I2C_CLIENT_WAKE,
+	 .platform_data = &fram_info,
+	 },
+};
+#endif
+
+static int __init omap3_stalker_i2c_init(void)
+{
+	/*
+	 * REVISIT: These entries can be set in omap3evm_twl_data
+	 * after a merge with MFD tree
+	 */
+	omap3stalker_twldata.vmmc1 = &omap3stalker_vmmc1;
+	omap3stalker_twldata.vsim = &omap3stalker_vsim;
+
+	omap_register_i2c_bus(1, 2600, omap3stalker_i2c_boardinfo,
+			      ARRAY_SIZE(omap3stalker_i2c_boardinfo));
+	omap_register_i2c_bus(2, 400, NULL, 0);
+#if defined(CONFIG_STALKER_BOARD_TYPE_EVM)
+	omap_register_i2c_bus(3, 400, NULL, 0);
+#elif defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+	omap_register_i2c_bus(3, 400, omap3stalker_i2c_boardinfo3,
+			      ARRAY_SIZE(omap3stalker_i2c_boardinfo3));
+#endif
+	return 0;
+}
+
+#define OMAP3_STALKER_TS_GPIO	175
+static void ads7846_dev_init(void)
+{
+	if (gpio_request(OMAP3_STALKER_TS_GPIO, "ADS7846 pendown") < 0)
+		printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
+
+	gpio_direction_input(OMAP3_STALKER_TS_GPIO);
+
+	omap_set_gpio_debounce(OMAP3_STALKER_TS_GPIO, 1);
+	omap_set_gpio_debounce_time(OMAP3_STALKER_TS_GPIO, 0xa);
+}
+
+static int ads7846_get_pendown_state(void)
+{
+	return !gpio_get_value(OMAP3_STALKER_TS_GPIO);
+}
+
+struct ads7846_platform_data ads7846_config = {
+	.x_max = 0x0fff,
+	.y_max = 0x0fff,
+	.x_plate_ohms = 180,
+	.pressure_max = 255,
+	.debounce_max = 10,
+	.debounce_tol = 3,
+	.debounce_rep = 1,
+	.get_pendown_state = ads7846_get_pendown_state,
+	.keep_vref_on = 1,
+	.settle_delay_usecs = 150,
+};
+
+static struct omap2_mcspi_device_config ads7846_mcspi_config = {
+	.turbo_mode = 0,
+	.single_channel = 1,	/* 0: slave, 1: master */
+};
+
+struct spi_board_info omap3stalker_spi_board_info[] = {
+	[0] = {
+	       .modalias = "ads7846",
+	       .bus_num = 1,
+	       .chip_select = 0,
+	       .max_speed_hz = 1500000,
+	       .controller_data = &ads7846_mcspi_config,
+	       .irq = OMAP_GPIO_IRQ(OMAP3_STALKER_TS_GPIO),
+	       .platform_data = &ads7846_config,
+	       },
+};
+
+static struct omap_board_config_kernel omap3_stalker_config[] __initdata =
{
+};
+
+static void __init omap3_stalker_init_irq(void)
+{
+	omap_board_config = omap3_stalker_config;
+	omap_board_config_size = ARRAY_SIZE(omap3_stalker_config);
+	omap2_init_common_hw(mt46h32m32lf6_sdrc_params, NULL);
+	omap_init_irq();
+#ifdef CONFIG_OMAP_32K_TIMER
+	omap2_gp_clockevent_set_gptimer(12);
+#endif
+	omap_gpio_init();
+}
+
+static struct platform_device *omap3_stalker_devices[] __initdata = {
+	&omap3_stalker_dss_device,
+#if defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+	&keys_gpio,
+#endif
+};
+
+static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
+#if defined(CONFIG_STALKER_BOARD_TYPE_EVM)
+	.port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN,
+	.port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
+	.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
+
+	.phy_reset = true,
+	.reset_gpio_port[0] = -EINVAL,
+	.reset_gpio_port[1] = -EINVAL,
+	.reset_gpio_port[2] = -EINVAL,
+#elif defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+	.port_mode[0] = EHCI_HCD_OMAP_MODE_UNKNOWN,
+	.port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
+	.port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
+
+	.phy_reset = true,
+	.reset_gpio_port[0] = -EINVAL,
+	.reset_gpio_port[1] = 21,
+	.reset_gpio_port[2] = -EINVAL,
+#endif
+};
+
+#ifdef CONFIG_OMAP_MUX
+static struct omap_board_mux board_mux[] __initdata = {
+	OMAP3_MUX(SYS_NIRQ, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP |
+		  OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE),
+	OMAP3_MUX(MCSPI1_CS1, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP |
+		  OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE),
+	{.reg_offset = OMAP_MUX_TERMINATOR},
+};
+#else
+#define board_mux	NULL
+#endif
+
+static struct omap_musb_board_data musb_board_data = {
+	.interface_type = MUSB_INTERFACE_ULPI,
+	.mode = MUSB_OTG,
+	.power = 100,
+};
+
+static void __init omap3_stalker_init(void)
+{
+	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
+
+	omap3_stalker_i2c_init();
+
+	platform_add_devices(omap3_stalker_devices,
+			     ARRAY_SIZE(omap3_stalker_devices));
+
+	spi_register_board_info(omap3stalker_spi_board_info,
+				ARRAY_SIZE(omap3stalker_spi_board_info));
+
+	omap_serial_init();
+	usb_musb_init(&musb_board_data);
+	usb_ehci_init(&ehci_pdata);
+	omap3stalker_flash_init();
+	ads7846_dev_init();
+#if defined(CONFIG_STALKER_BOARD_TYPE_EVM)
+#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
+	omap3_init_dm9k();
+#endif
+#elif defined(CONFIG_STALKER_BOARD_TYPE_LK_S)
+	omap_mux_init_gpio(21, OMAP_PIN_OUTPUT);
+	omap_mux_init_gpio(18, OMAP_PIN_INPUT_PULLUP);
+#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
+	omap3stalker_init_smsc911x();
+#endif
+#endif
+	omap3_stalker_display_init();
+/* Ensure SDRC pins are mux'd for self-refresh */
+	omap_mux_init_signal("sdr_cke0", OMAP_PIN_OUTPUT);
+	omap_mux_init_signal("sdr_cke1", OMAP_PIN_OUTPUT);
+}
+
+static void __init omap3_stalker_map_io(void)
+{
+	omap2_set_globals_343x();
+	omap34xx_map_common_io();
+}
+
+MACHINE_START(SBC3530, "OMAP3 STALKER")
+    /* Maintainer: Jason Lam -lzg@ema-tech.com */
+	.phys_io = 0x48000000,
+	.io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
+	.boot_params = 0x80000100,
+	.map_io = omap3_stalker_map_io,
+	.init_irq = omap3_stalker_init_irq,
+	.init_machine = omap3_stalker_init,
+	.timer = &omap_timer,
+MACHINE_END
+
--
1.5.4.3