arch/arm/mach-s3c24xx/mach-h1940.c - kernel/msm-4.9 - Gitiles

 /*
  * Copyright (c) 2003-2005 Simtec Electronics
  *   Ben Dooks <ben@simtec.co.uk>
  *
  * http://www.handhelds.org/projects/h1940.html
  *
  * 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/types.h>
 #include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/memblock.h>
 #include <linux/timer.h>
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/serial_core.h>
 #include <linux/serial_s3c.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 #include <linux/pwm_backlight.h>
 #include <linux/i2c.h>
 #include <linux/leds.h>
 #include <linux/pda_power.h>
 #include <linux/s3c_adc_battery.h>
 #include <linux/delay.h>

 #include <video/platform_lcd.h>

 #include <linux/mmc/host.h>
 #include <linux/export.h>

 #include <asm/irq.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>

 #include <linux/platform_data/i2c-s3c2410.h>
 #include <linux/platform_data/mmc-s3cmci.h>
 #include <linux/platform_data/touchscreen-s3c2410.h>
 #include <linux/platform_data/usb-s3c2410_udc.h>

 #include <sound/uda1380.h>

 #include <mach/fb.h>
 #include <mach/hardware.h>
 #include <mach/regs-clock.h>
 #include <mach/regs-gpio.h>
 #include <mach/regs-lcd.h>
 #include <mach/gpio-samsung.h>

 #include <plat/cpu.h>
 #include <plat/devs.h>
 #include <plat/gpio-cfg.h>
 #include <plat/pm.h>
 #include <plat/samsung-time.h>

 #include "common.h"
 #include "h1940.h"

 #define H1940_LATCH		((void __force __iomem *)0xF8000000)

 #define H1940_PA_LATCH		S3C2410_CS2

 #define H1940_LATCH_BIT(x)	(1 << ((x) + 16 - S3C_GPIO_END))

 #define S3C24XX_PLL_MDIV_SHIFT         (12)
 #define S3C24XX_PLL_PDIV_SHIFT         (4)
 #define S3C24XX_PLL_SDIV_SHIFT         (0)

 static struct map_desc h1940_iodesc[] __initdata = {
 	[0] = {
 		.virtual	= (unsigned long)H1940_LATCH,
 		.pfn		= __phys_to_pfn(H1940_PA_LATCH),
 		.length		= SZ_16K,
 		.type		= MT_DEVICE
 	},
 };

 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE

 static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
 	[0] = {
 		.hwport	     = 0,
 		.flags	     = 0,
 		.ucon	     = 0x3c5,
 		.ulcon	     = 0x03,
 		.ufcon	     = 0x51,
 	},
 	[1] = {
 		.hwport	     = 1,
 		.flags	     = 0,
 		.ucon	     = 0x245,
 		.ulcon	     = 0x03,
 		.ufcon	     = 0x00,
 	},
 	/* IR port */
 	[2] = {
 		.hwport	     = 2,
 		.flags	     = 0,
 		.uart_flags  = UPF_CONS_FLOW,
 		.ucon	     = 0x3c5,
 		.ulcon	     = 0x43,
 		.ufcon	     = 0x51,
 	}
 };

 /* Board control latch control */

 static unsigned int latch_state;

 static void h1940_latch_control(unsigned int clear, unsigned int set)
 {
 	unsigned long flags;

 	local_irq_save(flags);

 	latch_state &= ~clear;
 	latch_state |= set;

 	__raw_writel(latch_state, H1940_LATCH);

 	local_irq_restore(flags);
 }

 static inline int h1940_gpiolib_to_latch(int offset)
 {
 	return 1 << (offset + 16);
 }

 static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
 					unsigned offset, int value)
 {
 	int latch_bit = h1940_gpiolib_to_latch(offset);

 	h1940_latch_control(value ? 0 : latch_bit,
 		value ? latch_bit : 0);
 }

 static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
 					unsigned offset, int value)
 {
 	h1940_gpiolib_latch_set(chip, offset, value);
 	return 0;
 }

 static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
 					unsigned offset)
 {
 	return (latch_state >> (offset + 16)) & 1;
 }

 static struct gpio_chip h1940_latch_gpiochip = {
 	.base			= H1940_LATCH_GPIO(0),
 	.owner			= THIS_MODULE,
 	.label			= "H1940_LATCH",
 	.ngpio			= 16,
 	.direction_output	= h1940_gpiolib_latch_output,
 	.set			= h1940_gpiolib_latch_set,
 	.get			= h1940_gpiolib_latch_get,
 };

 static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
 	.vbus_pin		= S3C2410_GPG(5),
 	.vbus_pin_inverted	= 1,
 	.pullup_pin		= H1940_LATCH_USB_DP,
 };

 static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
 		.delay = 10000,
 		.presc = 49,
 		.oversampling_shift = 2,
 		.cfg_gpio = s3c24xx_ts_cfg_gpio,
 };

 /**
  * Set lcd on or off
  **/
 static struct s3c2410fb_display h1940_lcd __initdata = {
 	.lcdcon5=	S3C2410_LCDCON5_FRM565 | \
 			S3C2410_LCDCON5_INVVLINE | \
 			S3C2410_LCDCON5_HWSWP,

 	.type =		S3C2410_LCDCON1_TFT,
 	.width =	240,
 	.height =	320,
 	.pixclock =	260000,
 	.xres =		240,
 	.yres =		320,
 	.bpp =		16,
 	.left_margin =	8,
 	.right_margin =	20,
 	.hsync_len =	4,
 	.upper_margin =	8,
 	.lower_margin = 7,
 	.vsync_len =	1,
 };

 static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
 	.displays = &h1940_lcd,
 	.num_displays = 1,
 	.default_display = 0,

 	.lpcsel =	0x02,
 	.gpccon =	0xaa940659,
 	.gpccon_mask =	0xffffc0f0,
 	.gpcup =	0x0000ffff,
 	.gpcup_mask =	0xffffffff,
 	.gpdcon =	0xaa84aaa0,
 	.gpdcon_mask =	0xffffffff,
 	.gpdup =	0x0000faff,
 	.gpdup_mask =	0xffffffff,
 };

 static int power_supply_init(struct device *dev)
 {
 	return gpio_request(S3C2410_GPF(2), "cable plugged");
 }

 static int h1940_is_ac_online(void)
 {
 	return !gpio_get_value(S3C2410_GPF(2));
 }

 static void power_supply_exit(struct device *dev)
 {
 	gpio_free(S3C2410_GPF(2));
 }

 static char *h1940_supplicants[] = {
 	"main-battery",
 	"backup-battery",
 };

 static struct pda_power_pdata power_supply_info = {
 	.init			= power_supply_init,
 	.is_ac_online		= h1940_is_ac_online,
 	.exit			= power_supply_exit,
 	.supplied_to		= h1940_supplicants,
 	.num_supplicants	= ARRAY_SIZE(h1940_supplicants),
 };

 static struct resource power_supply_resources[] = {
 	[0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
 			| IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE),
 };

 static struct platform_device power_supply = {
 	.name		= "pda-power",
 	.id		= -1,
 	.dev		= {
 				.platform_data =
 					&power_supply_info,
 	},
 	.resource	= power_supply_resources,
 	.num_resources	= ARRAY_SIZE(power_supply_resources),
 };

 static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
 	{ .volt = 4070, .cur = 162, .level = 100},
 	{ .volt = 4040, .cur = 165, .level = 95},
 	{ .volt = 4016, .cur = 164, .level = 90},
 	{ .volt = 3996, .cur = 166, .level = 85},
 	{ .volt = 3971, .cur = 168, .level = 80},
 	{ .volt = 3951, .cur = 168, .level = 75},
 	{ .volt = 3931, .cur = 170, .level = 70},
 	{ .volt = 3903, .cur = 172, .level = 65},
 	{ .volt = 3886, .cur = 172, .level = 60},
 	{ .volt = 3858, .cur = 176, .level = 55},
 	{ .volt = 3842, .cur = 176, .level = 50},
 	{ .volt = 3818, .cur = 176, .level = 45},
 	{ .volt = 3789, .cur = 180, .level = 40},
 	{ .volt = 3769, .cur = 180, .level = 35},
 	{ .volt = 3749, .cur = 184, .level = 30},
 	{ .volt = 3732, .cur = 184, .level = 25},
 	{ .volt = 3716, .cur = 184, .level = 20},
 	{ .volt = 3708, .cur = 184, .level = 15},
 	{ .volt = 3716, .cur = 96, .level = 10},
 	{ .volt = 3700, .cur = 96, .level = 5},
 	{ .volt = 3684, .cur = 96, .level = 0},
 };

 static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
 	{ .volt = 4130, .cur = 0, .level = 100},
 	{ .volt = 3982, .cur = 0, .level = 50},
 	{ .volt = 3854, .cur = 0, .level = 10},
 	{ .volt = 3841, .cur = 0, .level = 0},
 };

 static int h1940_bat_init(void)
 {
 	int ret;

 	ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
 	if (ret)
 		return ret;
 	gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);

 	return 0;

 }

 static void h1940_bat_exit(void)
 {
 	gpio_free(H1940_LATCH_SM803_ENABLE);
 }

 static void h1940_enable_charger(void)
 {
 	gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
 }

 static void h1940_disable_charger(void)
 {
 	gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
 }

 static struct s3c_adc_bat_pdata h1940_bat_cfg = {
 	.init = h1940_bat_init,
 	.exit = h1940_bat_exit,
 	.enable_charger = h1940_enable_charger,
 	.disable_charger = h1940_disable_charger,
 	.gpio_charge_finished = S3C2410_GPF(3),
 	.gpio_inverted = 1,
 	.lut_noac = bat_lut_noac,
 	.lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
 	.lut_acin = bat_lut_acin,
 	.lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
 	.volt_channel = 0,
 	.current_channel = 1,
 	.volt_mult = 4056,
 	.current_mult = 1893,
 	.internal_impedance = 200,
 	.backup_volt_channel = 3,
 	/* TODO Check backup volt multiplier */
 	.backup_volt_mult = 4056,
 	.backup_volt_min = 0,
 	.backup_volt_max = 4149288
 };

 static struct platform_device h1940_battery = {
 	.name             = "s3c-adc-battery",
 	.id               = -1,
 	.dev = {
 		.parent = &s3c_device_adc.dev,
 		.platform_data = &h1940_bat_cfg,
 	},
 };

 static DEFINE_SPINLOCK(h1940_blink_spin);

 int h1940_led_blink_set(unsigned gpio, int state,
 	unsigned long *delay_on, unsigned long *delay_off)
 {
 	int blink_gpio, check_gpio1, check_gpio2;

 	switch (gpio) {
 	case H1940_LATCH_LED_GREEN:
 		blink_gpio = S3C2410_GPA(7);
 		check_gpio1 = S3C2410_GPA(1);
 		check_gpio2 = S3C2410_GPA(3);
 		break;
 	case H1940_LATCH_LED_RED:
 		blink_gpio = S3C2410_GPA(1);
 		check_gpio1 = S3C2410_GPA(7);
 		check_gpio2 = S3C2410_GPA(3);
 		break;
 	default:
 		blink_gpio = S3C2410_GPA(3);
 		check_gpio1 = S3C2410_GPA(1);
 		check_gpio2 = S3C2410_GPA(7);
 		break;
 	}

 	if (delay_on && delay_off && !*delay_on && !*delay_off)
 		*delay_on = *delay_off = 500;

 	spin_lock(&h1940_blink_spin);

 	switch (state) {
 	case GPIO_LED_NO_BLINK_LOW:
 	case GPIO_LED_NO_BLINK_HIGH:
 		if (!gpio_get_value(check_gpio1) &&
 		    !gpio_get_value(check_gpio2))
 			gpio_set_value(H1940_LATCH_LED_FLASH, 0);
 		gpio_set_value(blink_gpio, 0);
 		if (gpio_is_valid(gpio))
 			gpio_set_value(gpio, state);
 		break;
 	case GPIO_LED_BLINK:
 		if (gpio_is_valid(gpio))
 			gpio_set_value(gpio, 0);
 		gpio_set_value(H1940_LATCH_LED_FLASH, 1);
 		gpio_set_value(blink_gpio, 1);
 		break;
 	}

 	spin_unlock(&h1940_blink_spin);

 	return 0;
 }
 EXPORT_SYMBOL(h1940_led_blink_set);

 static struct gpio_led h1940_leds_desc[] = {
 	{
 		.name			= "Green",
 		.default_trigger	= "main-battery-full",
 		.gpio			= H1940_LATCH_LED_GREEN,
 		.retain_state_suspended	= 1,
 	},
 	{
 		.name			= "Red",
 		.default_trigger
 			= "main-battery-charging-blink-full-solid",
 		.gpio			= H1940_LATCH_LED_RED,
 		.retain_state_suspended	= 1,
 	},
 };

 static struct gpio_led_platform_data h1940_leds_pdata = {
 	.num_leds	= ARRAY_SIZE(h1940_leds_desc),
 	.leds		= h1940_leds_desc,
 	.gpio_blink_set	= h1940_led_blink_set,
 };

 static struct platform_device h1940_device_leds = {
 	.name	= "leds-gpio",
 	.id	= -1,
 	.dev	= {
 			.platform_data = &h1940_leds_pdata,
 	},
 };

 static struct platform_device h1940_device_bluetooth = {
 	.name             = "h1940-bt",
 	.id               = -1,
 };

 static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
 {
 	switch (power_mode) {
 	case MMC_POWER_OFF:
 		gpio_set_value(H1940_LATCH_SD_POWER, 0);
 		break;
 	case MMC_POWER_UP:
 	case MMC_POWER_ON:
 		gpio_set_value(H1940_LATCH_SD_POWER, 1);
 		break;
 	default:
 		break;
 	}
 }

 static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
 	.gpio_detect   = S3C2410_GPF(5),
 	.gpio_wprotect = S3C2410_GPH(8),
 	.set_power     = h1940_set_mmc_power,
 	.ocr_avail     = MMC_VDD_32_33,
 };

 static int h1940_backlight_init(struct device *dev)
 {
 	gpio_request(S3C2410_GPB(0), "Backlight");

 	gpio_direction_output(S3C2410_GPB(0), 0);
 	s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 	s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 	gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);

 	return 0;
 }

 static int h1940_backlight_notify(struct device *dev, int brightness)
 {
 	if (!brightness) {
 		gpio_direction_output(S3C2410_GPB(0), 1);
 		gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 	} else {
 		gpio_direction_output(S3C2410_GPB(0), 0);
 		s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 		s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
 		gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
 	}
 	return brightness;
 }

 static void h1940_backlight_exit(struct device *dev)
 {
 	gpio_direction_output(S3C2410_GPB(0), 1);
 	gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
 }


 static struct platform_pwm_backlight_data backlight_data = {
 	.pwm_id         = 0,
 	.max_brightness = 100,
 	.dft_brightness = 50,
 	/* tcnt = 0x31 */
 	.pwm_period_ns  = 36296,
 	.enable_gpio    = -1,
 	.init           = h1940_backlight_init,
 	.notify		= h1940_backlight_notify,
 	.exit           = h1940_backlight_exit,
 };

 static struct platform_device h1940_backlight = {
 	.name = "pwm-backlight",
 	.dev  = {
 		.parent = &samsung_device_pwm.dev,
 		.platform_data = &backlight_data,
 	},
 	.id   = -1,
 };

 static void h1940_lcd_power_set(struct plat_lcd_data *pd,
 					unsigned int power)
 {
 	int value, retries = 100;

 	if (!power) {
 		gpio_set_value(S3C2410_GPC(0), 0);
 		/* wait for 3ac */
 		do {
 			value = gpio_get_value(S3C2410_GPC(6));
 		} while (value && retries--);

 		gpio_set_value(H1940_LATCH_LCD_P2, 0);
 		gpio_set_value(H1940_LATCH_LCD_P3, 0);
 		gpio_set_value(H1940_LATCH_LCD_P4, 0);

 		gpio_direction_output(S3C2410_GPC(1), 0);
 		gpio_direction_output(S3C2410_GPC(4), 0);

 		gpio_set_value(H1940_LATCH_LCD_P1, 0);
 		gpio_set_value(H1940_LATCH_LCD_P0, 0);

 		gpio_set_value(S3C2410_GPC(5), 0);

 	} else {
 		gpio_set_value(H1940_LATCH_LCD_P0, 1);
 		gpio_set_value(H1940_LATCH_LCD_P1, 1);

 		gpio_direction_input(S3C2410_GPC(1));
 		gpio_direction_input(S3C2410_GPC(4));
 		mdelay(10);
 		s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
 		s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));

 		gpio_set_value(S3C2410_GPC(5), 1);
 		gpio_set_value(S3C2410_GPC(0), 1);

 		gpio_set_value(H1940_LATCH_LCD_P3, 1);
 		gpio_set_value(H1940_LATCH_LCD_P2, 1);
 		gpio_set_value(H1940_LATCH_LCD_P4, 1);
 	}
 }

 static struct plat_lcd_data h1940_lcd_power_data = {
 	.set_power      = h1940_lcd_power_set,
 };

 static struct platform_device h1940_lcd_powerdev = {
 	.name                   = "platform-lcd",
 	.dev.parent             = &s3c_device_lcd.dev,
 	.dev.platform_data      = &h1940_lcd_power_data,
 };

 static struct uda1380_platform_data uda1380_info = {
 	.gpio_power	= H1940_LATCH_UDA_POWER,
 	.gpio_reset	= S3C2410_GPA(12),
 	.dac_clk	= UDA1380_DAC_CLK_SYSCLK,
 };

 static struct i2c_board_info h1940_i2c_devices[] = {
 	{
 		I2C_BOARD_INFO("uda1380", 0x1a),
 		.platform_data = &uda1380_info,
 	},
 };

 #define DECLARE_BUTTON(p, k, n, w)	\
 	{				\
 		.gpio		= p,	\
 		.code		= k,	\
 		.desc		= n,	\
 		.wakeup		= w,	\
 		.active_low	= 1,	\
 	}

 static struct gpio_keys_button h1940_buttons[] = {
 	DECLARE_BUTTON(S3C2410_GPF(0),       KEY_POWER,          "Power", 1),
 	DECLARE_BUTTON(S3C2410_GPF(6),       KEY_ENTER,         "Select", 1),
 	DECLARE_BUTTON(S3C2410_GPF(7),      KEY_RECORD,         "Record", 0),
 	DECLARE_BUTTON(S3C2410_GPG(0),         KEY_F11,       "Calendar", 0),
 	DECLARE_BUTTON(S3C2410_GPG(2),         KEY_F12,       "Contacts", 0),
 	DECLARE_BUTTON(S3C2410_GPG(3),        KEY_MAIL,           "Mail", 0),
 	DECLARE_BUTTON(S3C2410_GPG(6),        KEY_LEFT,     "Left_arrow", 0),
 	DECLARE_BUTTON(S3C2410_GPG(7),    KEY_HOMEPAGE,           "Home", 0),
 	DECLARE_BUTTON(S3C2410_GPG(8),       KEY_RIGHT,    "Right_arrow", 0),
 	DECLARE_BUTTON(S3C2410_GPG(9),          KEY_UP,       "Up_arrow", 0),
 	DECLARE_BUTTON(S3C2410_GPG(10),       KEY_DOWN,     "Down_arrow", 0),
 };

 static struct gpio_keys_platform_data h1940_buttons_data = {
 	.buttons	= h1940_buttons,
 	.nbuttons	= ARRAY_SIZE(h1940_buttons),
 };

 static struct platform_device h1940_dev_buttons = {
 	.name		= "gpio-keys",
 	.id		= -1,
 	.dev		= {
 		.platform_data  = &h1940_buttons_data,
 	}
 };

 static struct platform_device *h1940_devices[] __initdata = {
 	&h1940_dev_buttons,
 	&s3c_device_ohci,
 	&s3c_device_lcd,
 	&s3c_device_wdt,
 	&s3c_device_i2c0,
 	&s3c_device_iis,
 	&s3c_device_usbgadget,
 	&h1940_device_leds,
 	&h1940_device_bluetooth,
 	&s3c_device_sdi,
 	&s3c_device_rtc,
 	&samsung_device_pwm,
 	&h1940_backlight,
 	&h1940_lcd_powerdev,
 	&s3c_device_adc,
 	&s3c_device_ts,
 	&power_supply,
 	&h1940_battery,
 };

 static void __init h1940_map_io(void)
 {
 	s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
 	s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
 	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);

 	/* setup PM */

 #ifdef CONFIG_PM_H1940
 	memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
 #endif
 	s3c_pm_init();

 	/* Add latch gpio chip, set latch initial value */
 	h1940_latch_control(0, 0);
 	WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
 }

 static void __init h1940_init_time(void)
 {
 	s3c2410_init_clocks(12000000);
 	samsung_timer_init();
 }

 /* H1940 and RX3715 need to reserve this for suspend */
 static void __init h1940_reserve(void)
 {
 	memblock_reserve(0x30003000, 0x1000);
 	memblock_reserve(0x30081000, 0x1000);
 }

 static void __init h1940_init(void)
 {
 	u32 tmp;

 	s3c24xx_fb_set_platdata(&h1940_fb_info);
 	s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
  	s3c24xx_udc_set_platdata(&h1940_udc_cfg);
 	s3c24xx_ts_set_platdata(&h1940_ts_cfg);
 	s3c_i2c0_set_platdata(NULL);

 	/* Turn off suspend on both USB ports, and switch the
 	 * selectable USB port to USB device mode. */

 	s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
 			      S3C2410_MISCCR_USBSUSPND0 |
 			      S3C2410_MISCCR_USBSUSPND1, 0x0);

 	tmp =   (0x78 << S3C24XX_PLL_MDIV_SHIFT)
 	      | (0x02 << S3C24XX_PLL_PDIV_SHIFT)
 	      | (0x03 << S3C24XX_PLL_SDIV_SHIFT);
 	writel(tmp, S3C2410_UPLLCON);

 	gpio_request(S3C2410_GPC(0), "LCD power");
 	gpio_request(S3C2410_GPC(1), "LCD power");
 	gpio_request(S3C2410_GPC(4), "LCD power");
 	gpio_request(S3C2410_GPC(5), "LCD power");
 	gpio_request(S3C2410_GPC(6), "LCD power");
 	gpio_request(H1940_LATCH_LCD_P0, "LCD power");
 	gpio_request(H1940_LATCH_LCD_P1, "LCD power");
 	gpio_request(H1940_LATCH_LCD_P2, "LCD power");
 	gpio_request(H1940_LATCH_LCD_P3, "LCD power");
 	gpio_request(H1940_LATCH_LCD_P4, "LCD power");
 	gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
 	gpio_direction_output(S3C2410_GPC(0), 0);
 	gpio_direction_output(S3C2410_GPC(1), 0);
 	gpio_direction_output(S3C2410_GPC(4), 0);
 	gpio_direction_output(S3C2410_GPC(5), 0);
 	gpio_direction_input(S3C2410_GPC(6));
 	gpio_direction_output(H1940_LATCH_LCD_P0, 0);
 	gpio_direction_output(H1940_LATCH_LCD_P1, 0);
 	gpio_direction_output(H1940_LATCH_LCD_P2, 0);
 	gpio_direction_output(H1940_LATCH_LCD_P3, 0);
 	gpio_direction_output(H1940_LATCH_LCD_P4, 0);
 	gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);

 	gpio_request(H1940_LATCH_SD_POWER, "SD power");
 	gpio_direction_output(H1940_LATCH_SD_POWER, 0);

 	platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));

 	gpio_request(S3C2410_GPA(1), "Red LED blink");
 	gpio_request(S3C2410_GPA(3), "Blue LED blink");
 	gpio_request(S3C2410_GPA(7), "Green LED blink");
 	gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
 	gpio_direction_output(S3C2410_GPA(1), 0);
 	gpio_direction_output(S3C2410_GPA(3), 0);
 	gpio_direction_output(S3C2410_GPA(7), 0);
 	gpio_direction_output(H1940_LATCH_LED_FLASH, 0);

 	i2c_register_board_info(0, h1940_i2c_devices,
 		ARRAY_SIZE(h1940_i2c_devices));
 }

 MACHINE_START(H1940, "IPAQ-H1940")
 	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
 	.atag_offset	= 0x100,
 	.map_io		= h1940_map_io,
 	.reserve	= h1940_reserve,
 	.init_irq	= s3c2410_init_irq,
 	.init_machine	= h1940_init,
 	.init_time	= h1940_init_time,
 	.restart	= s3c2410_restart,
 MACHINE_END
	/*
	* Copyright (c) 2003-2005 Simtec Electronics
	* Ben Dooks <ben@simtec.co.uk>
	*
	* http://www.handhelds.org/projects/h1940.html
	*
	* 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/types.h>
	#include <linux/interrupt.h>
	#include <linux/list.h>
	#include <linux/memblock.h>
	#include <linux/timer.h>
	#include <linux/init.h>
	#include <linux/device.h>
	#include <linux/serial_core.h>
	#include <linux/serial_s3c.h>
	#include <linux/platform_device.h>
	#include <linux/io.h>
	#include <linux/gpio.h>
	#include <linux/input.h>
	#include <linux/gpio_keys.h>
	#include <linux/pwm_backlight.h>
	#include <linux/i2c.h>
	#include <linux/leds.h>
	#include <linux/pda_power.h>
	#include <linux/s3c_adc_battery.h>
	#include <linux/delay.h>

	#include <video/platform_lcd.h>

	#include <linux/mmc/host.h>
	#include <linux/export.h>

	#include <asm/irq.h>
	#include <asm/mach-types.h>
	#include <asm/mach/arch.h>
	#include <asm/mach/map.h>
	#include <asm/mach/irq.h>

	#include <linux/platform_data/i2c-s3c2410.h>
	#include <linux/platform_data/mmc-s3cmci.h>
	#include <linux/platform_data/touchscreen-s3c2410.h>
	#include <linux/platform_data/usb-s3c2410_udc.h>

	#include <sound/uda1380.h>

	#include <mach/fb.h>
	#include <mach/hardware.h>
	#include <mach/regs-clock.h>
	#include <mach/regs-gpio.h>
	#include <mach/regs-lcd.h>
	#include <mach/gpio-samsung.h>

	#include <plat/cpu.h>
	#include <plat/devs.h>
	#include <plat/gpio-cfg.h>
	#include <plat/pm.h>
	#include <plat/samsung-time.h>

	#include "common.h"
	#include "h1940.h"

	#define H1940_LATCH ((void __force __iomem *)0xF8000000)

	#define H1940_PA_LATCH S3C2410_CS2

	#define H1940_LATCH_BIT(x) (1 << ((x) + 16 - S3C_GPIO_END))

	#define S3C24XX_PLL_MDIV_SHIFT (12)
	#define S3C24XX_PLL_PDIV_SHIFT (4)
	#define S3C24XX_PLL_SDIV_SHIFT (0)

	static struct map_desc h1940_iodesc[] __initdata = {
	[0] = {
	.virtual = (unsigned long)H1940_LATCH,
	.pfn = __phys_to_pfn(H1940_PA_LATCH),
	.length = SZ_16K,
	.type = MT_DEVICE
	},
	};

	#define UCON S3C2410_UCON_DEFAULT \| S3C2410_UCON_UCLK
	#define ULCON S3C2410_LCON_CS8 \| S3C2410_LCON_PNONE \| S3C2410_LCON_STOPB
	#define UFCON S3C2410_UFCON_RXTRIG8 \| S3C2410_UFCON_FIFOMODE

	static struct s3c2410_uartcfg h1940_uartcfgs[] __initdata = {
	[0] = {
	.hwport = 0,
	.flags = 0,
	.ucon = 0x3c5,
	.ulcon = 0x03,
	.ufcon = 0x51,
	},
	[1] = {
	.hwport = 1,
	.flags = 0,
	.ucon = 0x245,
	.ulcon = 0x03,
	.ufcon = 0x00,
	},
	/* IR port */
	[2] = {
	.hwport = 2,
	.flags = 0,
	.uart_flags = UPF_CONS_FLOW,
	.ucon = 0x3c5,
	.ulcon = 0x43,
	.ufcon = 0x51,
	}
	};

	/* Board control latch control */

	static unsigned int latch_state;

	static void h1940_latch_control(unsigned int clear, unsigned int set)
	{
	unsigned long flags;

	local_irq_save(flags);

	latch_state &= ~clear;
	latch_state \|= set;

	__raw_writel(latch_state, H1940_LATCH);

	local_irq_restore(flags);
	}

	static inline int h1940_gpiolib_to_latch(int offset)
	{
	return 1 << (offset + 16);
	}

	static void h1940_gpiolib_latch_set(struct gpio_chip *chip,
	unsigned offset, int value)
	{
	int latch_bit = h1940_gpiolib_to_latch(offset);

	h1940_latch_control(value ? 0 : latch_bit,
	value ? latch_bit : 0);
	}

	static int h1940_gpiolib_latch_output(struct gpio_chip *chip,
	unsigned offset, int value)
	{
	h1940_gpiolib_latch_set(chip, offset, value);
	return 0;
	}

	static int h1940_gpiolib_latch_get(struct gpio_chip *chip,
	unsigned offset)
	{
	return (latch_state >> (offset + 16)) & 1;
	}

	static struct gpio_chip h1940_latch_gpiochip = {
	.base = H1940_LATCH_GPIO(0),
	.owner = THIS_MODULE,
	.label = "H1940_LATCH",
	.ngpio = 16,
	.direction_output = h1940_gpiolib_latch_output,
	.set = h1940_gpiolib_latch_set,
	.get = h1940_gpiolib_latch_get,
	};

	static struct s3c2410_udc_mach_info h1940_udc_cfg __initdata = {
	.vbus_pin = S3C2410_GPG(5),
	.vbus_pin_inverted = 1,
	.pullup_pin = H1940_LATCH_USB_DP,
	};

	static struct s3c2410_ts_mach_info h1940_ts_cfg __initdata = {
	.delay = 10000,
	.presc = 49,
	.oversampling_shift = 2,
	.cfg_gpio = s3c24xx_ts_cfg_gpio,
	};

	/**
	* Set lcd on or off
	**/
	static struct s3c2410fb_display h1940_lcd __initdata = {
	.lcdcon5= S3C2410_LCDCON5_FRM565 \| \
	S3C2410_LCDCON5_INVVLINE \| \
	S3C2410_LCDCON5_HWSWP,

	.type = S3C2410_LCDCON1_TFT,
	.width = 240,
	.height = 320,
	.pixclock = 260000,
	.xres = 240,
	.yres = 320,
	.bpp = 16,
	.left_margin = 8,
	.right_margin = 20,
	.hsync_len = 4,
	.upper_margin = 8,
	.lower_margin = 7,
	.vsync_len = 1,
	};

	static struct s3c2410fb_mach_info h1940_fb_info __initdata = {
	.displays = &h1940_lcd,
	.num_displays = 1,
	.default_display = 0,

	.lpcsel = 0x02,
	.gpccon = 0xaa940659,
	.gpccon_mask = 0xffffc0f0,
	.gpcup = 0x0000ffff,
	.gpcup_mask = 0xffffffff,
	.gpdcon = 0xaa84aaa0,
	.gpdcon_mask = 0xffffffff,
	.gpdup = 0x0000faff,
	.gpdup_mask = 0xffffffff,
	};

	static int power_supply_init(struct device *dev)
	{
	return gpio_request(S3C2410_GPF(2), "cable plugged");
	}

	static int h1940_is_ac_online(void)
	{
	return !gpio_get_value(S3C2410_GPF(2));
	}

	static void power_supply_exit(struct device *dev)
	{
	gpio_free(S3C2410_GPF(2));
	}

	static char *h1940_supplicants[] = {
	"main-battery",
	"backup-battery",
	};

	static struct pda_power_pdata power_supply_info = {
	.init = power_supply_init,
	.is_ac_online = h1940_is_ac_online,
	.exit = power_supply_exit,
	.supplied_to = h1940_supplicants,
	.num_supplicants = ARRAY_SIZE(h1940_supplicants),
	};

	static struct resource power_supply_resources[] = {
	[0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \
	\| IORESOURCE_IRQ_LOWEDGE \| IORESOURCE_IRQ_HIGHEDGE),
	};

	static struct platform_device power_supply = {
	.name = "pda-power",
	.id = -1,
	.dev = {
	.platform_data =
	&power_supply_info,
	},
	.resource = power_supply_resources,
	.num_resources = ARRAY_SIZE(power_supply_resources),
	};

	static const struct s3c_adc_bat_thresh bat_lut_noac[] = {
	{ .volt = 4070, .cur = 162, .level = 100},
	{ .volt = 4040, .cur = 165, .level = 95},
	{ .volt = 4016, .cur = 164, .level = 90},
	{ .volt = 3996, .cur = 166, .level = 85},
	{ .volt = 3971, .cur = 168, .level = 80},
	{ .volt = 3951, .cur = 168, .level = 75},
	{ .volt = 3931, .cur = 170, .level = 70},
	{ .volt = 3903, .cur = 172, .level = 65},
	{ .volt = 3886, .cur = 172, .level = 60},
	{ .volt = 3858, .cur = 176, .level = 55},
	{ .volt = 3842, .cur = 176, .level = 50},
	{ .volt = 3818, .cur = 176, .level = 45},
	{ .volt = 3789, .cur = 180, .level = 40},
	{ .volt = 3769, .cur = 180, .level = 35},
	{ .volt = 3749, .cur = 184, .level = 30},
	{ .volt = 3732, .cur = 184, .level = 25},
	{ .volt = 3716, .cur = 184, .level = 20},
	{ .volt = 3708, .cur = 184, .level = 15},
	{ .volt = 3716, .cur = 96, .level = 10},
	{ .volt = 3700, .cur = 96, .level = 5},
	{ .volt = 3684, .cur = 96, .level = 0},
	};

	static const struct s3c_adc_bat_thresh bat_lut_acin[] = {
	{ .volt = 4130, .cur = 0, .level = 100},
	{ .volt = 3982, .cur = 0, .level = 50},
	{ .volt = 3854, .cur = 0, .level = 10},
	{ .volt = 3841, .cur = 0, .level = 0},
	};

	static int h1940_bat_init(void)
	{
	int ret;

	ret = gpio_request(H1940_LATCH_SM803_ENABLE, "h1940-charger-enable");
	if (ret)
	return ret;
	gpio_direction_output(H1940_LATCH_SM803_ENABLE, 0);

	return 0;

	}

	static void h1940_bat_exit(void)
	{
	gpio_free(H1940_LATCH_SM803_ENABLE);
	}

	static void h1940_enable_charger(void)
	{
	gpio_set_value(H1940_LATCH_SM803_ENABLE, 1);
	}

	static void h1940_disable_charger(void)
	{
	gpio_set_value(H1940_LATCH_SM803_ENABLE, 0);
	}

	static struct s3c_adc_bat_pdata h1940_bat_cfg = {
	.init = h1940_bat_init,
	.exit = h1940_bat_exit,
	.enable_charger = h1940_enable_charger,
	.disable_charger = h1940_disable_charger,
	.gpio_charge_finished = S3C2410_GPF(3),
	.gpio_inverted = 1,
	.lut_noac = bat_lut_noac,
	.lut_noac_cnt = ARRAY_SIZE(bat_lut_noac),
	.lut_acin = bat_lut_acin,
	.lut_acin_cnt = ARRAY_SIZE(bat_lut_acin),
	.volt_channel = 0,
	.current_channel = 1,
	.volt_mult = 4056,
	.current_mult = 1893,
	.internal_impedance = 200,
	.backup_volt_channel = 3,
	/* TODO Check backup volt multiplier */
	.backup_volt_mult = 4056,
	.backup_volt_min = 0,
	.backup_volt_max = 4149288
	};

	static struct platform_device h1940_battery = {
	.name = "s3c-adc-battery",
	.id = -1,
	.dev = {
	.parent = &s3c_device_adc.dev,
	.platform_data = &h1940_bat_cfg,
	},
	};

	static DEFINE_SPINLOCK(h1940_blink_spin);

	int h1940_led_blink_set(unsigned gpio, int state,
	unsigned long delay_on, unsigned long delay_off)
	{
	int blink_gpio, check_gpio1, check_gpio2;

	switch (gpio) {
	case H1940_LATCH_LED_GREEN:
	blink_gpio = S3C2410_GPA(7);
	check_gpio1 = S3C2410_GPA(1);
	check_gpio2 = S3C2410_GPA(3);
	break;
	case H1940_LATCH_LED_RED:
	blink_gpio = S3C2410_GPA(1);
	check_gpio1 = S3C2410_GPA(7);
	check_gpio2 = S3C2410_GPA(3);
	break;
	default:
	blink_gpio = S3C2410_GPA(3);
	check_gpio1 = S3C2410_GPA(1);
	check_gpio2 = S3C2410_GPA(7);
	break;
	}

	if (delay_on && delay_off && !delay_on && !delay_off)
	delay_on = delay_off = 500;

	spin_lock(&h1940_blink_spin);

	switch (state) {
	case GPIO_LED_NO_BLINK_LOW:
	case GPIO_LED_NO_BLINK_HIGH:
	if (!gpio_get_value(check_gpio1) &&
	!gpio_get_value(check_gpio2))
	gpio_set_value(H1940_LATCH_LED_FLASH, 0);
	gpio_set_value(blink_gpio, 0);
	if (gpio_is_valid(gpio))
	gpio_set_value(gpio, state);
	break;
	case GPIO_LED_BLINK:
	if (gpio_is_valid(gpio))
	gpio_set_value(gpio, 0);
	gpio_set_value(H1940_LATCH_LED_FLASH, 1);
	gpio_set_value(blink_gpio, 1);
	break;
	}

	spin_unlock(&h1940_blink_spin);

	return 0;
	}
	EXPORT_SYMBOL(h1940_led_blink_set);

	static struct gpio_led h1940_leds_desc[] = {
	{
	.name = "Green",
	.default_trigger = "main-battery-full",
	.gpio = H1940_LATCH_LED_GREEN,
	.retain_state_suspended = 1,
	},
	{
	.name = "Red",
	.default_trigger
	= "main-battery-charging-blink-full-solid",
	.gpio = H1940_LATCH_LED_RED,
	.retain_state_suspended = 1,
	},
	};

	static struct gpio_led_platform_data h1940_leds_pdata = {
	.num_leds = ARRAY_SIZE(h1940_leds_desc),
	.leds = h1940_leds_desc,
	.gpio_blink_set = h1940_led_blink_set,
	};

	static struct platform_device h1940_device_leds = {
	.name = "leds-gpio",
	.id = -1,
	.dev = {
	.platform_data = &h1940_leds_pdata,
	},
	};

	static struct platform_device h1940_device_bluetooth = {
	.name = "h1940-bt",
	.id = -1,
	};

	static void h1940_set_mmc_power(unsigned char power_mode, unsigned short vdd)
	{
	switch (power_mode) {
	case MMC_POWER_OFF:
	gpio_set_value(H1940_LATCH_SD_POWER, 0);
	break;
	case MMC_POWER_UP:
	case MMC_POWER_ON:
	gpio_set_value(H1940_LATCH_SD_POWER, 1);
	break;
	default:
	break;
	}
	}

	static struct s3c24xx_mci_pdata h1940_mmc_cfg __initdata = {
	.gpio_detect = S3C2410_GPF(5),
	.gpio_wprotect = S3C2410_GPH(8),
	.set_power = h1940_set_mmc_power,
	.ocr_avail = MMC_VDD_32_33,
	};

	static int h1940_backlight_init(struct device *dev)
	{
	gpio_request(S3C2410_GPB(0), "Backlight");

	gpio_direction_output(S3C2410_GPB(0), 0);
	s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
	s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
	gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);

	return 0;
	}

	static int h1940_backlight_notify(struct device *dev, int brightness)
	{
	if (!brightness) {
	gpio_direction_output(S3C2410_GPB(0), 1);
	gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
	} else {
	gpio_direction_output(S3C2410_GPB(0), 0);
	s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
	s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0);
	gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 1);
	}
	return brightness;
	}

	static void h1940_backlight_exit(struct device *dev)
	{
	gpio_direction_output(S3C2410_GPB(0), 1);
	gpio_set_value(H1940_LATCH_MAX1698_nSHUTDOWN, 0);
	}


	static struct platform_pwm_backlight_data backlight_data = {
	.pwm_id = 0,
	.max_brightness = 100,
	.dft_brightness = 50,
	/* tcnt = 0x31 */
	.pwm_period_ns = 36296,
	.enable_gpio = -1,
	.init = h1940_backlight_init,
	.notify = h1940_backlight_notify,
	.exit = h1940_backlight_exit,
	};

	static struct platform_device h1940_backlight = {
	.name = "pwm-backlight",
	.dev = {
	.parent = &samsung_device_pwm.dev,
	.platform_data = &backlight_data,
	},
	.id = -1,
	};

	static void h1940_lcd_power_set(struct plat_lcd_data *pd,
	unsigned int power)
	{
	int value, retries = 100;

	if (!power) {
	gpio_set_value(S3C2410_GPC(0), 0);
	/* wait for 3ac */
	do {
	value = gpio_get_value(S3C2410_GPC(6));
	} while (value && retries--);

	gpio_set_value(H1940_LATCH_LCD_P2, 0);
	gpio_set_value(H1940_LATCH_LCD_P3, 0);
	gpio_set_value(H1940_LATCH_LCD_P4, 0);

	gpio_direction_output(S3C2410_GPC(1), 0);
	gpio_direction_output(S3C2410_GPC(4), 0);

	gpio_set_value(H1940_LATCH_LCD_P1, 0);
	gpio_set_value(H1940_LATCH_LCD_P0, 0);

	gpio_set_value(S3C2410_GPC(5), 0);

	} else {
	gpio_set_value(H1940_LATCH_LCD_P0, 1);
	gpio_set_value(H1940_LATCH_LCD_P1, 1);

	gpio_direction_input(S3C2410_GPC(1));
	gpio_direction_input(S3C2410_GPC(4));
	mdelay(10);
	s3c_gpio_cfgpin(S3C2410_GPC(1), S3C_GPIO_SFN(2));
	s3c_gpio_cfgpin(S3C2410_GPC(4), S3C_GPIO_SFN(2));

	gpio_set_value(S3C2410_GPC(5), 1);
	gpio_set_value(S3C2410_GPC(0), 1);

	gpio_set_value(H1940_LATCH_LCD_P3, 1);
	gpio_set_value(H1940_LATCH_LCD_P2, 1);
	gpio_set_value(H1940_LATCH_LCD_P4, 1);
	}
	}

	static struct plat_lcd_data h1940_lcd_power_data = {
	.set_power = h1940_lcd_power_set,
	};

	static struct platform_device h1940_lcd_powerdev = {
	.name = "platform-lcd",
	.dev.parent = &s3c_device_lcd.dev,
	.dev.platform_data = &h1940_lcd_power_data,
	};

	static struct uda1380_platform_data uda1380_info = {
	.gpio_power = H1940_LATCH_UDA_POWER,
	.gpio_reset = S3C2410_GPA(12),
	.dac_clk = UDA1380_DAC_CLK_SYSCLK,
	};

	static struct i2c_board_info h1940_i2c_devices[] = {
	{
	I2C_BOARD_INFO("uda1380", 0x1a),
	.platform_data = &uda1380_info,
	},
	};

	#define DECLARE_BUTTON(p, k, n, w) \
	{ \
	.gpio = p, \
	.code = k, \
	.desc = n, \
	.wakeup = w, \
	.active_low = 1, \
	}

	static struct gpio_keys_button h1940_buttons[] = {
	DECLARE_BUTTON(S3C2410_GPF(0), KEY_POWER, "Power", 1),
	DECLARE_BUTTON(S3C2410_GPF(6), KEY_ENTER, "Select", 1),
	DECLARE_BUTTON(S3C2410_GPF(7), KEY_RECORD, "Record", 0),
	DECLARE_BUTTON(S3C2410_GPG(0), KEY_F11, "Calendar", 0),
	DECLARE_BUTTON(S3C2410_GPG(2), KEY_F12, "Contacts", 0),
	DECLARE_BUTTON(S3C2410_GPG(3), KEY_MAIL, "Mail", 0),
	DECLARE_BUTTON(S3C2410_GPG(6), KEY_LEFT, "Left_arrow", 0),
	DECLARE_BUTTON(S3C2410_GPG(7), KEY_HOMEPAGE, "Home", 0),
	DECLARE_BUTTON(S3C2410_GPG(8), KEY_RIGHT, "Right_arrow", 0),
	DECLARE_BUTTON(S3C2410_GPG(9), KEY_UP, "Up_arrow", 0),
	DECLARE_BUTTON(S3C2410_GPG(10), KEY_DOWN, "Down_arrow", 0),
	};

	static struct gpio_keys_platform_data h1940_buttons_data = {
	.buttons = h1940_buttons,
	.nbuttons = ARRAY_SIZE(h1940_buttons),
	};

	static struct platform_device h1940_dev_buttons = {
	.name = "gpio-keys",
	.id = -1,
	.dev = {
	.platform_data = &h1940_buttons_data,
	}
	};

	static struct platform_device *h1940_devices[] __initdata = {
	&h1940_dev_buttons,
	&s3c_device_ohci,
	&s3c_device_lcd,
	&s3c_device_wdt,
	&s3c_device_i2c0,
	&s3c_device_iis,
	&s3c_device_usbgadget,
	&h1940_device_leds,
	&h1940_device_bluetooth,
	&s3c_device_sdi,
	&s3c_device_rtc,
	&samsung_device_pwm,
	&h1940_backlight,
	&h1940_lcd_powerdev,
	&s3c_device_adc,
	&s3c_device_ts,
	&power_supply,
	&h1940_battery,
	};

	static void __init h1940_map_io(void)
	{
	s3c24xx_init_io(h1940_iodesc, ARRAY_SIZE(h1940_iodesc));
	s3c24xx_init_uarts(h1940_uartcfgs, ARRAY_SIZE(h1940_uartcfgs));
	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);

	/* setup PM */

	#ifdef CONFIG_PM_H1940
	memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
	#endif
	s3c_pm_init();

	/* Add latch gpio chip, set latch initial value */
	h1940_latch_control(0, 0);
	WARN_ON(gpiochip_add(&h1940_latch_gpiochip));
	}

	static void __init h1940_init_time(void)
	{
	s3c2410_init_clocks(12000000);
	samsung_timer_init();
	}

	/* H1940 and RX3715 need to reserve this for suspend */
	static void __init h1940_reserve(void)
	{
	memblock_reserve(0x30003000, 0x1000);
	memblock_reserve(0x30081000, 0x1000);
	}

	static void __init h1940_init(void)
	{
	u32 tmp;

	s3c24xx_fb_set_platdata(&h1940_fb_info);
	s3c24xx_mci_set_platdata(&h1940_mmc_cfg);
	s3c24xx_udc_set_platdata(&h1940_udc_cfg);
	s3c24xx_ts_set_platdata(&h1940_ts_cfg);
	s3c_i2c0_set_platdata(NULL);

	/* Turn off suspend on both USB ports, and switch the
	* selectable USB port to USB device mode. */

	s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST \|
	S3C2410_MISCCR_USBSUSPND0 \|
	S3C2410_MISCCR_USBSUSPND1, 0x0);

	tmp = (0x78 << S3C24XX_PLL_MDIV_SHIFT)
	\| (0x02 << S3C24XX_PLL_PDIV_SHIFT)
	\| (0x03 << S3C24XX_PLL_SDIV_SHIFT);
	writel(tmp, S3C2410_UPLLCON);

	gpio_request(S3C2410_GPC(0), "LCD power");
	gpio_request(S3C2410_GPC(1), "LCD power");
	gpio_request(S3C2410_GPC(4), "LCD power");
	gpio_request(S3C2410_GPC(5), "LCD power");
	gpio_request(S3C2410_GPC(6), "LCD power");
	gpio_request(H1940_LATCH_LCD_P0, "LCD power");
	gpio_request(H1940_LATCH_LCD_P1, "LCD power");
	gpio_request(H1940_LATCH_LCD_P2, "LCD power");
	gpio_request(H1940_LATCH_LCD_P3, "LCD power");
	gpio_request(H1940_LATCH_LCD_P4, "LCD power");
	gpio_request(H1940_LATCH_MAX1698_nSHUTDOWN, "LCD power");
	gpio_direction_output(S3C2410_GPC(0), 0);
	gpio_direction_output(S3C2410_GPC(1), 0);
	gpio_direction_output(S3C2410_GPC(4), 0);
	gpio_direction_output(S3C2410_GPC(5), 0);
	gpio_direction_input(S3C2410_GPC(6));
	gpio_direction_output(H1940_LATCH_LCD_P0, 0);
	gpio_direction_output(H1940_LATCH_LCD_P1, 0);
	gpio_direction_output(H1940_LATCH_LCD_P2, 0);
	gpio_direction_output(H1940_LATCH_LCD_P3, 0);
	gpio_direction_output(H1940_LATCH_LCD_P4, 0);
	gpio_direction_output(H1940_LATCH_MAX1698_nSHUTDOWN, 0);

	gpio_request(H1940_LATCH_SD_POWER, "SD power");
	gpio_direction_output(H1940_LATCH_SD_POWER, 0);

	platform_add_devices(h1940_devices, ARRAY_SIZE(h1940_devices));

	gpio_request(S3C2410_GPA(1), "Red LED blink");
	gpio_request(S3C2410_GPA(3), "Blue LED blink");
	gpio_request(S3C2410_GPA(7), "Green LED blink");
	gpio_request(H1940_LATCH_LED_FLASH, "LED blink");
	gpio_direction_output(S3C2410_GPA(1), 0);
	gpio_direction_output(S3C2410_GPA(3), 0);
	gpio_direction_output(S3C2410_GPA(7), 0);
	gpio_direction_output(H1940_LATCH_LED_FLASH, 0);

	i2c_register_board_info(0, h1940_i2c_devices,
	ARRAY_SIZE(h1940_i2c_devices));
	}

	MACHINE_START(H1940, "IPAQ-H1940")
	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
	.atag_offset = 0x100,
	.map_io = h1940_map_io,
	.reserve = h1940_reserve,
	.init_irq = s3c2410_init_irq,
	.init_machine = h1940_init,
	.init_time = h1940_init_time,
	.restart = s3c2410_restart,
	MACHINE_END