arch/arm/mach-omap1/board-palmte.c - kernel/windcharger - Git at Google

 /*
  * linux/arch/arm/mach-omap1/board-palmte.c
  *
  * Modified from board-generic.c
  *
  * Support for the Palm Tungsten E PDA.
  *
  * Original version : Laurent Gonzalez
  *
  * Maintainers : http://palmtelinux.sf.net
  *                palmtelinux-developpers@lists.sf.net
  *
  * Copyright (c) 2006 Andrzej Zaborowski  <balrog@zabor.org>
  *
  * 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/input.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/spi/spi.h>
 #include <linux/interrupt.h>
 #include <linux/apm-emulation.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 <mach/gpio.h>
 #include <mach/mux.h>
 #include <mach/usb.h>
 #include <mach/tc.h>
 #include <mach/dma.h>
 #include <mach/board.h>
 #include <mach/irda.h>
 #include <mach/keypad.h>
 #include <mach/common.h>

 #define PALMTE_USBDETECT_GPIO	0
 #define PALMTE_USB_OR_DC_GPIO	1
 #define PALMTE_TSC_GPIO		4
 #define PALMTE_PINTDAV_GPIO	6
 #define PALMTE_MMC_WP_GPIO	8
 #define PALMTE_MMC_POWER_GPIO	9
 #define PALMTE_HDQ_GPIO		11
 #define PALMTE_HEADPHONES_GPIO	14
 #define PALMTE_SPEAKER_GPIO	15
 #define PALMTE_DC_GPIO		OMAP_MPUIO(2)
 #define PALMTE_MMC_SWITCH_GPIO	OMAP_MPUIO(4)
 #define PALMTE_MMC1_GPIO	OMAP_MPUIO(6)
 #define PALMTE_MMC2_GPIO	OMAP_MPUIO(7)
 #define PALMTE_MMC3_GPIO	OMAP_MPUIO(11)

 static void __init omap_palmte_init_irq(void)
 {
 	omap1_init_common_hw();
 	omap_init_irq();
 	omap_gpio_init();
 }

 static const int palmte_keymap[] = {
 	KEY(0, 0, KEY_F1),		/* Calendar */
 	KEY(0, 1, KEY_F2),		/* Contacts */
 	KEY(0, 2, KEY_F3),		/* Tasks List */
 	KEY(0, 3, KEY_F4),		/* Note Pad */
 	KEY(0, 4, KEY_POWER),
 	KEY(1, 0, KEY_LEFT),
 	KEY(1, 1, KEY_DOWN),
 	KEY(1, 2, KEY_UP),
 	KEY(1, 3, KEY_RIGHT),
 	KEY(1, 4, KEY_ENTER),
 	0,
 };

 static struct omap_kp_platform_data palmte_kp_data = {
 	.rows	= 8,
 	.cols	= 8,
 	.keymap = (int *) palmte_keymap,
 	.rep	= 1,
 	.delay	= 12,
 };

 static struct resource palmte_kp_resources[] = {
 	[0]	= {
 		.start	= INT_KEYBOARD,
 		.end	= INT_KEYBOARD,
 		.flags	= IORESOURCE_IRQ,
 	},
 };

 static struct platform_device palmte_kp_device = {
 	.name		= "omap-keypad",
 	.id		= -1,
 	.dev		= {
 		.platform_data	= &palmte_kp_data,
 	},
 	.num_resources	= ARRAY_SIZE(palmte_kp_resources),
 	.resource	= palmte_kp_resources,
 };

 static struct mtd_partition palmte_rom_partitions[] = {
 	/* PalmOS "Small ROM", contains the bootloader and the debugger */
 	{
 		.name		= "smallrom",
 		.offset		= 0,
 		.size		= 0xa000,
 		.mask_flags	= MTD_WRITEABLE,
 	},
 	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
 	{
 		.name		= "bigrom",
 		.offset		= SZ_128K,
 		/*
 		 * 0x5f0000 bytes big in the multi-language ("EFIGS") version,
 		 * 0x7b0000 bytes in the English-only ("enUS") version.
 		 */
 		.size		= 0x7b0000,
 		.mask_flags	= MTD_WRITEABLE,
 	},
 };

 static struct flash_platform_data palmte_rom_data = {
 	.map_name	= "map_rom",
 	.width		= 2,
 	.parts		= palmte_rom_partitions,
 	.nr_parts	= ARRAY_SIZE(palmte_rom_partitions),
 };

 static struct resource palmte_rom_resource = {
 	.start		= OMAP_CS0_PHYS,
 	.end		= OMAP_CS0_PHYS + SZ_8M - 1,
 	.flags		= IORESOURCE_MEM,
 };

 static struct platform_device palmte_rom_device = {
 	.name		= "omapflash",
 	.id		= -1,
 	.dev		= {
 		.platform_data	= &palmte_rom_data,
 	},
 	.num_resources	= 1,
 	.resource	= &palmte_rom_resource,
 };

 static struct platform_device palmte_lcd_device = {
 	.name		= "lcd_palmte",
 	.id		= -1,
 };

 static struct omap_backlight_config palmte_backlight_config = {
 	.default_intensity	= 0xa0,
 };

 static struct platform_device palmte_backlight_device = {
 	.name		= "omap-bl",
 	.id		= -1,
 	.dev		= {
 		.platform_data	= &palmte_backlight_config,
 	},
 };

 static struct omap_irda_config palmte_irda_config = {
 	.transceiver_cap	= IR_SIRMODE,
 	.rx_channel		= OMAP_DMA_UART3_RX,
 	.tx_channel		= OMAP_DMA_UART3_TX,
 	.dest_start		= UART3_THR,
 	.src_start		= UART3_RHR,
 	.tx_trigger		= 0,
 	.rx_trigger		= 0,
 };

 static struct resource palmte_irda_resources[] = {
 	[0]	= {
 		.start	= INT_UART3,
 		.end	= INT_UART3,
 		.flags	= IORESOURCE_IRQ,
 	},
 };

 static struct platform_device palmte_irda_device = {
 	.name		= "omapirda",
 	.id		= -1,
 	.dev		= {
 		.platform_data	= &palmte_irda_config,
 	},
 	.num_resources	= ARRAY_SIZE(palmte_irda_resources),
 	.resource	= palmte_irda_resources,
 };

 static struct platform_device *palmte_devices[] __initdata = {
 	&palmte_rom_device,
 	&palmte_kp_device,
 	&palmte_lcd_device,
 	&palmte_backlight_device,
 	&palmte_irda_device,
 };

 static struct omap_usb_config palmte_usb_config __initdata = {
 	.register_dev	= 1,	/* Mini-B only receptacle */
 	.hmc_mode	= 0,
 	.pins[0]	= 2,
 };

 static struct omap_lcd_config palmte_lcd_config __initdata = {
 	.ctrl_name	= "internal",
 };

 static struct omap_uart_config palmte_uart_config __initdata = {
 	.enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
 };

 #ifdef CONFIG_APM
 /*
  * Values measured in 10 minute intervals averaged over 10 samples.
  * May differ slightly from device to device but should be accurate
  * enough to give basic idea of battery life left and trigger
  * potential alerts.
  */
 static const int palmte_battery_sample[] = {
 	2194, 2157, 2138, 2120,
 	2104, 2089, 2075, 2061,
 	2048, 2038, 2026, 2016,
 	2008, 1998, 1989, 1980,
 	1970, 1958, 1945, 1928,
 	1910, 1888, 1860, 1827,
 	1791, 1751, 1709, 1656,
 };

 #define INTERVAL		10
 #define BATTERY_HIGH_TRESHOLD	66
 #define BATTERY_LOW_TRESHOLD	33

 static void palmte_get_power_status(struct apm_power_info *info, int *battery)
 {
 	int charging, batt, hi, lo, mid;

 	charging = !gpio_get_value(PALMTE_DC_GPIO);
 	batt = battery[0];
 	if (charging)
 		batt -= 60;

 	hi = ARRAY_SIZE(palmte_battery_sample);
 	lo = 0;

 	info->battery_flag = 0;
 	info->units = APM_UNITS_MINS;

 	if (batt > palmte_battery_sample[lo]) {
 		info->battery_life = 100;
 		info->time = INTERVAL * ARRAY_SIZE(palmte_battery_sample);
 	} else if (batt <= palmte_battery_sample[hi - 1]) {
 		info->battery_life = 0;
 		info->time = 0;
 	} else {
 		while (hi > lo + 1) {
 			mid = (hi + lo) >> 1;
 			if (batt <= palmte_battery_sample[mid])
 				lo = mid;
 			else
 				hi = mid;
 		}

 		mid = palmte_battery_sample[lo] - palmte_battery_sample[hi];
 		hi = palmte_battery_sample[lo] - batt;
 		info->battery_life = 100 - (100 * lo + 100 * hi / mid) /
 			ARRAY_SIZE(palmte_battery_sample);
 		info->time = INTERVAL * (ARRAY_SIZE(palmte_battery_sample) -
 				lo) - INTERVAL * hi / mid;
 	}

 	if (charging) {
 		info->ac_line_status = APM_AC_ONLINE;
 		info->battery_status = APM_BATTERY_STATUS_CHARGING;
 		info->battery_flag |= APM_BATTERY_FLAG_CHARGING;
 	} else {
 		info->ac_line_status = APM_AC_OFFLINE;
 		if (info->battery_life > BATTERY_HIGH_TRESHOLD)
 			info->battery_status = APM_BATTERY_STATUS_HIGH;
 		else if (info->battery_life > BATTERY_LOW_TRESHOLD)
 			info->battery_status = APM_BATTERY_STATUS_LOW;
 		else
 			info->battery_status = APM_BATTERY_STATUS_CRITICAL;
 	}

 	if (info->battery_life > BATTERY_HIGH_TRESHOLD)
 		info->battery_flag |= APM_BATTERY_FLAG_HIGH;
 	else if (info->battery_life > BATTERY_LOW_TRESHOLD)
 		info->battery_flag |= APM_BATTERY_FLAG_LOW;
 	else
 		info->battery_flag |= APM_BATTERY_FLAG_CRITICAL;
 }
 #else
 #define palmte_get_power_status	NULL
 #endif

 static struct omap_board_config_kernel palmte_config[] __initdata = {
 	{ OMAP_TAG_LCD,		&palmte_lcd_config },
 	{ OMAP_TAG_UART,	&palmte_uart_config },
 };

 static struct spi_board_info palmte_spi_info[] __initdata = {
 	{
 		.modalias	= "tsc2102",
 		.bus_num	= 2,	/* uWire (officially) */
 		.chip_select	= 0,	/* As opposed to 3 */
 		.irq		= OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO),
 		.max_speed_hz	= 8000000,
 	},
 };

 static void palmte_headphones_detect(void *data, int state)
 {
 	if (state) {
 		/* Headphones connected, disable speaker */
 		gpio_set_value(PALMTE_SPEAKER_GPIO, 0);
 		printk(KERN_INFO "PM: speaker off\n");
 	} else {
 		/* Headphones unplugged, re-enable speaker */
 		gpio_set_value(PALMTE_SPEAKER_GPIO, 1);
 		printk(KERN_INFO "PM: speaker on\n");
 	}
 }

 static void __init palmte_misc_gpio_setup(void)
 {
 	/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
 	if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
 		printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
 		return;
 	}
 	gpio_direction_input(PALMTE_PINTDAV_GPIO);

 	/* Set USB-or-DC-IN pin as input (unused) */
 	if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
 		printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
 		return;
 	}
 	gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
 }

 static void __init omap_palmte_init(void)
 {
 	omap_board_config = palmte_config;
 	omap_board_config_size = ARRAY_SIZE(palmte_config);

 	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));

 	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
 	palmte_misc_gpio_setup();
 	omap_serial_init();
 	omap_usb_init(&palmte_usb_config);
 	omap_register_i2c_bus(1, 100, NULL, 0);
 }

 static void __init omap_palmte_map_io(void)
 {
 	omap1_map_common_io();
 }

 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
 	.phys_io	= 0xfff00000,
 	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
 	.map_io		= omap_palmte_map_io,
 	.init_irq	= omap_palmte_init_irq,
 	.init_machine	= omap_palmte_init,
 	.timer		= &omap_timer,
 MACHINE_END
	/*
	* linux/arch/arm/mach-omap1/board-palmte.c
	*
	* Modified from board-generic.c
	*
	* Support for the Palm Tungsten E PDA.
	*
	* Original version : Laurent Gonzalez
	*
	* Maintainers : http://palmtelinux.sf.net
	* palmtelinux-developpers@lists.sf.net
	*
	* Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org>
	*
	* 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/input.h>
	#include <linux/platform_device.h>
	#include <linux/mtd/mtd.h>
	#include <linux/mtd/partitions.h>
	#include <linux/spi/spi.h>
	#include <linux/interrupt.h>
	#include <linux/apm-emulation.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 <mach/gpio.h>
	#include <mach/mux.h>
	#include <mach/usb.h>
	#include <mach/tc.h>
	#include <mach/dma.h>
	#include <mach/board.h>
	#include <mach/irda.h>
	#include <mach/keypad.h>
	#include <mach/common.h>

	#define PALMTE_USBDETECT_GPIO 0
	#define PALMTE_USB_OR_DC_GPIO 1
	#define PALMTE_TSC_GPIO 4
	#define PALMTE_PINTDAV_GPIO 6
	#define PALMTE_MMC_WP_GPIO 8
	#define PALMTE_MMC_POWER_GPIO 9
	#define PALMTE_HDQ_GPIO 11
	#define PALMTE_HEADPHONES_GPIO 14
	#define PALMTE_SPEAKER_GPIO 15
	#define PALMTE_DC_GPIO OMAP_MPUIO(2)
	#define PALMTE_MMC_SWITCH_GPIO OMAP_MPUIO(4)
	#define PALMTE_MMC1_GPIO OMAP_MPUIO(6)
	#define PALMTE_MMC2_GPIO OMAP_MPUIO(7)
	#define PALMTE_MMC3_GPIO OMAP_MPUIO(11)

	static void __init omap_palmte_init_irq(void)
	{
	omap1_init_common_hw();
	omap_init_irq();
	omap_gpio_init();
	}

	static const int palmte_keymap[] = {
	KEY(0, 0, KEY_F1), /* Calendar */
	KEY(0, 1, KEY_F2), /* Contacts */
	KEY(0, 2, KEY_F3), /* Tasks List */
	KEY(0, 3, KEY_F4), /* Note Pad */
	KEY(0, 4, KEY_POWER),
	KEY(1, 0, KEY_LEFT),
	KEY(1, 1, KEY_DOWN),
	KEY(1, 2, KEY_UP),
	KEY(1, 3, KEY_RIGHT),
	KEY(1, 4, KEY_ENTER),
	0,
	};

	static struct omap_kp_platform_data palmte_kp_data = {
	.rows = 8,
	.cols = 8,
	.keymap = (int *) palmte_keymap,
	.rep = 1,
	.delay = 12,
	};

	static struct resource palmte_kp_resources[] = {
	[0] = {
	.start = INT_KEYBOARD,
	.end = INT_KEYBOARD,
	.flags = IORESOURCE_IRQ,
	},
	};

	static struct platform_device palmte_kp_device = {
	.name = "omap-keypad",
	.id = -1,
	.dev = {
	.platform_data = &palmte_kp_data,
	},
	.num_resources = ARRAY_SIZE(palmte_kp_resources),
	.resource = palmte_kp_resources,
	};

	static struct mtd_partition palmte_rom_partitions[] = {
	/* PalmOS "Small ROM", contains the bootloader and the debugger */
	{
	.name = "smallrom",
	.offset = 0,
	.size = 0xa000,
	.mask_flags = MTD_WRITEABLE,
	},
	/* PalmOS "Big ROM", a filesystem with all the OS code and data */
	{
	.name = "bigrom",
	.offset = SZ_128K,
	/*
	* 0x5f0000 bytes big in the multi-language ("EFIGS") version,
	* 0x7b0000 bytes in the English-only ("enUS") version.
	*/
	.size = 0x7b0000,
	.mask_flags = MTD_WRITEABLE,
	},
	};

	static struct flash_platform_data palmte_rom_data = {
	.map_name = "map_rom",
	.width = 2,
	.parts = palmte_rom_partitions,
	.nr_parts = ARRAY_SIZE(palmte_rom_partitions),
	};

	static struct resource palmte_rom_resource = {
	.start = OMAP_CS0_PHYS,
	.end = OMAP_CS0_PHYS + SZ_8M - 1,
	.flags = IORESOURCE_MEM,
	};

	static struct platform_device palmte_rom_device = {
	.name = "omapflash",
	.id = -1,
	.dev = {
	.platform_data = &palmte_rom_data,
	},
	.num_resources = 1,
	.resource = &palmte_rom_resource,
	};

	static struct platform_device palmte_lcd_device = {
	.name = "lcd_palmte",
	.id = -1,
	};

	static struct omap_backlight_config palmte_backlight_config = {
	.default_intensity = 0xa0,
	};

	static struct platform_device palmte_backlight_device = {
	.name = "omap-bl",
	.id = -1,
	.dev = {
	.platform_data = &palmte_backlight_config,
	},
	};

	static struct omap_irda_config palmte_irda_config = {
	.transceiver_cap = IR_SIRMODE,
	.rx_channel = OMAP_DMA_UART3_RX,
	.tx_channel = OMAP_DMA_UART3_TX,
	.dest_start = UART3_THR,
	.src_start = UART3_RHR,
	.tx_trigger = 0,
	.rx_trigger = 0,
	};

	static struct resource palmte_irda_resources[] = {
	[0] = {
	.start = INT_UART3,
	.end = INT_UART3,
	.flags = IORESOURCE_IRQ,
	},
	};

	static struct platform_device palmte_irda_device = {
	.name = "omapirda",
	.id = -1,
	.dev = {
	.platform_data = &palmte_irda_config,
	},
	.num_resources = ARRAY_SIZE(palmte_irda_resources),
	.resource = palmte_irda_resources,
	};

	static struct platform_device *palmte_devices[] __initdata = {
	&palmte_rom_device,
	&palmte_kp_device,
	&palmte_lcd_device,
	&palmte_backlight_device,
	&palmte_irda_device,
	};

	static struct omap_usb_config palmte_usb_config __initdata = {
	.register_dev = 1, /* Mini-B only receptacle */
	.hmc_mode = 0,
	.pins[0] = 2,
	};

	static struct omap_lcd_config palmte_lcd_config __initdata = {
	.ctrl_name = "internal",
	};

	static struct omap_uart_config palmte_uart_config __initdata = {
	.enabled_uarts = (1 << 0) \| (1 << 1) \| (0 << 2),
	};

	#ifdef CONFIG_APM
	/*
	* Values measured in 10 minute intervals averaged over 10 samples.
	* May differ slightly from device to device but should be accurate
	* enough to give basic idea of battery life left and trigger
	* potential alerts.
	*/
	static const int palmte_battery_sample[] = {
	2194, 2157, 2138, 2120,
	2104, 2089, 2075, 2061,
	2048, 2038, 2026, 2016,
	2008, 1998, 1989, 1980,
	1970, 1958, 1945, 1928,
	1910, 1888, 1860, 1827,
	1791, 1751, 1709, 1656,
	};

	#define INTERVAL 10
	#define BATTERY_HIGH_TRESHOLD 66
	#define BATTERY_LOW_TRESHOLD 33

	static void palmte_get_power_status(struct apm_power_info info, int battery)
	{
	int charging, batt, hi, lo, mid;

	charging = !gpio_get_value(PALMTE_DC_GPIO);
	batt = battery[0];
	if (charging)
	batt -= 60;

	hi = ARRAY_SIZE(palmte_battery_sample);
	lo = 0;

	info->battery_flag = 0;
	info->units = APM_UNITS_MINS;

	if (batt > palmte_battery_sample[lo]) {
	info->battery_life = 100;
	info->time = INTERVAL * ARRAY_SIZE(palmte_battery_sample);
	} else if (batt <= palmte_battery_sample[hi - 1]) {
	info->battery_life = 0;
	info->time = 0;
	} else {
	while (hi > lo + 1) {
	mid = (hi + lo) >> 1;
	if (batt <= palmte_battery_sample[mid])
	lo = mid;
	else
	hi = mid;
	}

	mid = palmte_battery_sample[lo] - palmte_battery_sample[hi];
	hi = palmte_battery_sample[lo] - batt;
	info->battery_life = 100 - (100 * lo + 100 * hi / mid) /
	ARRAY_SIZE(palmte_battery_sample);
	info->time = INTERVAL * (ARRAY_SIZE(palmte_battery_sample) -
	lo) - INTERVAL * hi / mid;
	}

	if (charging) {
	info->ac_line_status = APM_AC_ONLINE;
	info->battery_status = APM_BATTERY_STATUS_CHARGING;
	info->battery_flag \|= APM_BATTERY_FLAG_CHARGING;
	} else {
	info->ac_line_status = APM_AC_OFFLINE;
	if (info->battery_life > BATTERY_HIGH_TRESHOLD)
	info->battery_status = APM_BATTERY_STATUS_HIGH;
	else if (info->battery_life > BATTERY_LOW_TRESHOLD)
	info->battery_status = APM_BATTERY_STATUS_LOW;
	else
	info->battery_status = APM_BATTERY_STATUS_CRITICAL;
	}

	if (info->battery_life > BATTERY_HIGH_TRESHOLD)
	info->battery_flag \|= APM_BATTERY_FLAG_HIGH;
	else if (info->battery_life > BATTERY_LOW_TRESHOLD)
	info->battery_flag \|= APM_BATTERY_FLAG_LOW;
	else
	info->battery_flag \|= APM_BATTERY_FLAG_CRITICAL;
	}
	#else
	#define palmte_get_power_status NULL
	#endif

	static struct omap_board_config_kernel palmte_config[] __initdata = {
	{ OMAP_TAG_LCD, &palmte_lcd_config },
	{ OMAP_TAG_UART, &palmte_uart_config },
	};

	static struct spi_board_info palmte_spi_info[] __initdata = {
	{
	.modalias = "tsc2102",
	.bus_num = 2, /* uWire (officially) */
	.chip_select = 0, /* As opposed to 3 */
	.irq = OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO),
	.max_speed_hz = 8000000,
	},
	};

	static void palmte_headphones_detect(void *data, int state)
	{
	if (state) {
	/* Headphones connected, disable speaker */
	gpio_set_value(PALMTE_SPEAKER_GPIO, 0);
	printk(KERN_INFO "PM: speaker off\n");
	} else {
	/* Headphones unplugged, re-enable speaker */
	gpio_set_value(PALMTE_SPEAKER_GPIO, 1);
	printk(KERN_INFO "PM: speaker on\n");
	}
	}

	static void __init palmte_misc_gpio_setup(void)
	{
	/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
	if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
	printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
	return;
	}
	gpio_direction_input(PALMTE_PINTDAV_GPIO);

	/* Set USB-or-DC-IN pin as input (unused) */
	if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
	printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
	return;
	}
	gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
	}

	static void __init omap_palmte_init(void)
	{
	omap_board_config = palmte_config;
	omap_board_config_size = ARRAY_SIZE(palmte_config);

	platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));

	spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
	palmte_misc_gpio_setup();
	omap_serial_init();
	omap_usb_init(&palmte_usb_config);
	omap_register_i2c_bus(1, 100, NULL, 0);
	}

	static void __init omap_palmte_map_io(void)
	{
	omap1_map_common_io();
	}

	MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
	.phys_io = 0xfff00000,
	.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
	.boot_params = 0x10000100,
	.map_io = omap_palmte_map_io,
	.init_irq = omap_palmte_init_irq,
	.init_machine = omap_palmte_init,
	.timer = &omap_timer,
	MACHINE_END