[net-next-2.6.git] / arch / arm / mach-omap1 / board-htcherald.c

/*
 * HTC Herald board configuration
 * Copyright (C) 2009 Cory Maccarrone <darkstar6262@gmail.com>
 * Copyright (C) 2009 Wing Linux
 *
 * Based on the board-htcwizard.c file from the linwizard project:
 * Copyright (C) 2006 Unai Uribarri
 * Copyright (C) 2008 linwizard.sourceforge.net
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT  ANY  WARRANTY;  without   even  the  implied  warranty  of
 * MERCHANTABILITY or  FITNESS FOR A PARTICULAR PURPOSE.   See the GNU
 * General Public License for more details.
 *
 * You should have  received a copy of the  GNU General Public License
 * along  with  this program;  if  not,  write  to the  Free  Software
 * Foundation,  Inc.,  51 Franklin  Street,  Fifth  Floor, Boston,  MA
 * 02110-1301, USA.
 *
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <linux/htcpld.h>
#include <linux/leds.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>

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

#include <plat/omap7xx.h>
#include <plat/common.h>
#include <plat/board.h>
#include <plat/keypad.h>
#include <plat/usb.h>
#include <plat/mmc.h>

#include <mach/irqs.h>

#include <linux/delay.h>

/* LCD register definition */
#define       OMAP_LCDC_CONTROL               (0xfffec000 + 0x00)
#define       OMAP_LCDC_STATUS                (0xfffec000 + 0x10)
#define       OMAP_DMA_LCD_CCR                (0xfffee300 + 0xc2)
#define       OMAP_DMA_LCD_CTRL               (0xfffee300 + 0xc4)
#define       OMAP_LCDC_CTRL_LCD_EN           (1 << 0)
#define       OMAP_LCDC_STAT_DONE             (1 << 0)

/* GPIO definitions for the power button and keyboard slide switch */
#define HTCHERALD_GPIO_POWER 139
#define HTCHERALD_GPIO_SLIDE 174
#define HTCHERALD_GIRQ_BTNS 141

/* GPIO definitions for the touchscreen */
#define HTCHERALD_GPIO_TS 76

/* HTCPLD definitions */

/*
 * CPLD Logic
 *
 * Chip 3 - 0x03
 *
 * Function            7 6 5 4  3 2 1 0
 * ------------------------------------
 * DPAD light          x x x x  x x x 1
 * SoundDev            x x x x  1 x x x
 * Screen white        1 x x x  x x x x
 * MMC power on        x x x x  x 1 x x
 * Happy times (n)     0 x x x  x 1 x x
 *
 * Chip 4 - 0x04
 *
 * Function            7 6 5 4  3 2 1 0
 * ------------------------------------
 * Keyboard light      x x x x  x x x 1
 * LCD Bright (4)      x x x x  x 1 1 x
 * LCD Bright (3)      x x x x  x 0 1 x
 * LCD Bright (2)      x x x x  x 1 0 x
 * LCD Bright (1)      x x x x  x 0 0 x
 * LCD Off             x x x x  0 x x x
 * LCD image (fb)      1 x x x  x x x x
 * LCD image (white)   0 x x x  x x x x
 * Caps lock LED       x x 1 x  x x x x
 *
 * Chip 5 - 0x05
 *
 * Function            7 6 5 4  3 2 1 0
 * ------------------------------------
 * Red (solid)         x x x x  x 1 x x
 * Red (flash)         x x x x  x x 1 x
 * Green (GSM flash)   x x x x  1 x x x
 * Green (GSM solid)   x x x 1  x x x x
 * Green (wifi flash)  x x 1 x  x x x x
 * Blue (bt flash)     x 1 x x  x x x x
 * DPAD Int Enable     1 x x x  x x x 0
 *
 * (Combinations of the above can be made for different colors.)
 * The direction pad interrupt enable must be set each time the
 * interrupt is handled.
 *
 * Chip 6 - 0x06
 *
 * Function            7 6 5 4  3 2 1 0
 * ------------------------------------
 * Vibrator            x x x x  1 x x x
 * Alt LED             x x x 1  x x x x
 * Screen white        1 x x x  x x x x
 * Screen white        x x 1 x  x x x x
 * Screen white        x 0 x x  x x x x
 * Enable kbd dpad     x x x x  x x 0 x
 * Happy Times         0 1 0 x  x x 0 x
 */

/*
 * HTCPLD GPIO lines start 16 after OMAP_MAX_GPIO_LINES to account
 * for the 16 MPUIO lines.
 */
#define HTCPLD_GPIO_START_OFFSET	(OMAP_MAX_GPIO_LINES + 16)
#define HTCPLD_IRQ(chip, offset)	(OMAP_IRQ_END + 8 * (chip) + (offset))
#define HTCPLD_BASE(chip, offset)	\
	(HTCPLD_GPIO_START_OFFSET + 8 * (chip) + (offset))

#define HTCPLD_GPIO_LED_DPAD		HTCPLD_BASE(0, 0)
#define HTCPLD_GPIO_LED_KBD		HTCPLD_BASE(1, 0)
#define HTCPLD_GPIO_LED_CAPS		HTCPLD_BASE(1, 5)
#define HTCPLD_GPIO_LED_RED_FLASH	HTCPLD_BASE(2, 1)
#define HTCPLD_GPIO_LED_RED_SOLID	HTCPLD_BASE(2, 2)
#define HTCPLD_GPIO_LED_GREEN_FLASH	HTCPLD_BASE(2, 3)
#define HTCPLD_GPIO_LED_GREEN_SOLID	HTCPLD_BASE(2, 4)
#define HTCPLD_GPIO_LED_WIFI		HTCPLD_BASE(2, 5)
#define HTCPLD_GPIO_LED_BT		HTCPLD_BASE(2, 6)
#define HTCPLD_GPIO_LED_VIBRATE		HTCPLD_BASE(3, 3)
#define HTCPLD_GPIO_LED_ALT		HTCPLD_BASE(3, 4)

#define HTCPLD_GPIO_RIGHT_KBD		HTCPLD_BASE(6, 7)
#define HTCPLD_GPIO_UP_KBD		HTCPLD_BASE(6, 6)
#define HTCPLD_GPIO_LEFT_KBD		HTCPLD_BASE(6, 5)
#define HTCPLD_GPIO_DOWN_KBD		HTCPLD_BASE(6, 4)

#define HTCPLD_GPIO_RIGHT_DPAD		HTCPLD_BASE(7, 7)
#define HTCPLD_GPIO_UP_DPAD		HTCPLD_BASE(7, 6)
#define HTCPLD_GPIO_LEFT_DPAD		HTCPLD_BASE(7, 5)
#define HTCPLD_GPIO_DOWN_DPAD		HTCPLD_BASE(7, 4)
#define HTCPLD_GPIO_ENTER_DPAD		HTCPLD_BASE(7, 3)

/*
 * The htcpld chip requires a gpio write to a specific line
 * to re-enable interrupts after one has occurred.
 */
#define HTCPLD_GPIO_INT_RESET_HI	HTCPLD_BASE(2, 7)
#define HTCPLD_GPIO_INT_RESET_LO	HTCPLD_BASE(2, 0)

/* Chip 5 */
#define HTCPLD_IRQ_RIGHT_KBD		HTCPLD_IRQ(0, 7)
#define HTCPLD_IRQ_UP_KBD		HTCPLD_IRQ(0, 6)
#define HTCPLD_IRQ_LEFT_KBD		HTCPLD_IRQ(0, 5)
#define HTCPLD_IRQ_DOWN_KBD		HTCPLD_IRQ(0, 4)

/* Chip 6 */
#define HTCPLD_IRQ_RIGHT_DPAD		HTCPLD_IRQ(1, 7)
#define HTCPLD_IRQ_UP_DPAD		HTCPLD_IRQ(1, 6)
#define HTCPLD_IRQ_LEFT_DPAD		HTCPLD_IRQ(1, 5)
#define HTCPLD_IRQ_DOWN_DPAD		HTCPLD_IRQ(1, 4)
#define HTCPLD_IRQ_ENTER_DPAD		HTCPLD_IRQ(1, 3)

/* Keyboard definition */

static int htc_herald_keymap[] = {
	KEY(0, 0, KEY_RECORD), /* Mail button */
	KEY(0, 1, KEY_CAMERA), /* Camera */
	KEY(0, 2, KEY_PHONE), /* Send key */
	KEY(0, 3, KEY_VOLUMEUP), /* Volume up */
	KEY(0, 4, KEY_F2),  /* Right bar (landscape) */
	KEY(0, 5, KEY_MAIL), /* Win key (portrait) */
	KEY(0, 6, KEY_DIRECTORY), /* Right bar (protrait) */
	KEY(1, 0, KEY_LEFTCTRL), /* Windows key */
	KEY(1, 1, KEY_COMMA),
	KEY(1, 2, KEY_M),
	KEY(1, 3, KEY_K),
	KEY(1, 4, KEY_SLASH), /* OK key */
	KEY(1, 5, KEY_I),
	KEY(1, 6, KEY_U),
	KEY(2, 0, KEY_LEFTALT),
	KEY(2, 1, KEY_TAB),
	KEY(2, 2, KEY_N),
	KEY(2, 3, KEY_J),
	KEY(2, 4, KEY_ENTER),
	KEY(2, 5, KEY_H),
	KEY(2, 6, KEY_Y),
	KEY(3, 0, KEY_SPACE),
	KEY(3, 1, KEY_L),
	KEY(3, 2, KEY_B),
	KEY(3, 3, KEY_V),
	KEY(3, 4, KEY_BACKSPACE),
	KEY(3, 5, KEY_G),
	KEY(3, 6, KEY_T),
	KEY(4, 0, KEY_CAPSLOCK), /* Shift */
	KEY(4, 1, KEY_C),
	KEY(4, 2, KEY_F),
	KEY(4, 3, KEY_R),
	KEY(4, 4, KEY_O),
	KEY(4, 5, KEY_E),
	KEY(4, 6, KEY_D),
	KEY(5, 0, KEY_X),
	KEY(5, 1, KEY_Z),
	KEY(5, 2, KEY_S),
	KEY(5, 3, KEY_W),
	KEY(5, 4, KEY_P),
	KEY(5, 5, KEY_Q),
	KEY(5, 6, KEY_A),
	KEY(6, 0, KEY_CONNECT), /* Voice button */
	KEY(6, 2, KEY_CANCEL), /* End key */
	KEY(6, 3, KEY_VOLUMEDOWN), /* Volume down */
	KEY(6, 4, KEY_F1), /* Left bar (landscape) */
	KEY(6, 5, KEY_WWW), /* OK button (portrait) */
	KEY(6, 6, KEY_CALENDAR), /* Left bar (portrait) */
	0
};

struct omap_kp_platform_data htcherald_kp_data = {
	.rows	= 7,
	.cols	= 7,
	.delay = 20,
	.rep = 1,
	.keymap = htc_herald_keymap,
};

static struct resource kp_resources[] = {
	[0] = {
		.start	= INT_7XX_MPUIO_KEYPAD,
		.end	= INT_7XX_MPUIO_KEYPAD,
		.flags	= IORESOURCE_IRQ,
	},
};

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

/* GPIO buttons for keyboard slide and power button */
static struct gpio_keys_button herald_gpio_keys_table[] = {
	{BTN_0,  HTCHERALD_GPIO_POWER, 1, "POWER", EV_KEY, 1, 20},
	{SW_LID, HTCHERALD_GPIO_SLIDE, 0, "SLIDE", EV_SW,  1, 20},

	{KEY_LEFT,  HTCPLD_GPIO_LEFT_KBD,  1, "LEFT",  EV_KEY, 1, 20},
	{KEY_RIGHT, HTCPLD_GPIO_RIGHT_KBD, 1, "RIGHT", EV_KEY, 1, 20},
	{KEY_UP,    HTCPLD_GPIO_UP_KBD,    1, "UP",    EV_KEY, 1, 20},
	{KEY_DOWN,  HTCPLD_GPIO_DOWN_KBD,  1, "DOWN",  EV_KEY, 1, 20},

	{KEY_LEFT,  HTCPLD_GPIO_LEFT_DPAD,   1, "DLEFT",  EV_KEY, 1, 20},
	{KEY_RIGHT, HTCPLD_GPIO_RIGHT_DPAD,  1, "DRIGHT", EV_KEY, 1, 20},
	{KEY_UP,    HTCPLD_GPIO_UP_DPAD,     1, "DUP",    EV_KEY, 1, 20},
	{KEY_DOWN,  HTCPLD_GPIO_DOWN_DPAD,   1, "DDOWN",  EV_KEY, 1, 20},
	{KEY_ENTER, HTCPLD_GPIO_ENTER_DPAD,  1, "DENTER", EV_KEY, 1, 20},
};

static struct gpio_keys_platform_data herald_gpio_keys_data = {
	.buttons	= herald_gpio_keys_table,
	.nbuttons	= ARRAY_SIZE(herald_gpio_keys_table),
	.rep		= 1,
};

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

/* LEDs for the Herald.  These connect to the HTCPLD GPIO device. */
static struct gpio_led gpio_leds[] = {
	{"dpad",        NULL, HTCPLD_GPIO_LED_DPAD,        0, 0, LEDS_GPIO_DEFSTATE_OFF},
	{"kbd",         NULL, HTCPLD_GPIO_LED_KBD,         0, 0, LEDS_GPIO_DEFSTATE_OFF},
	{"vibrate",     NULL, HTCPLD_GPIO_LED_VIBRATE,     0, 0, LEDS_GPIO_DEFSTATE_OFF},
	{"green_solid", NULL, HTCPLD_GPIO_LED_GREEN_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	{"green_flash", NULL, HTCPLD_GPIO_LED_GREEN_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	{"red_solid",   "mmc0", HTCPLD_GPIO_LED_RED_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	{"red_flash",   NULL, HTCPLD_GPIO_LED_RED_FLASH,   0, 0, LEDS_GPIO_DEFSTATE_OFF},
	{"wifi",        NULL, HTCPLD_GPIO_LED_WIFI,        0, 0, LEDS_GPIO_DEFSTATE_OFF},
	{"bt",          NULL, HTCPLD_GPIO_LED_BT,          0, 0, LEDS_GPIO_DEFSTATE_OFF},
	{"caps",        NULL, HTCPLD_GPIO_LED_CAPS,        0, 0, LEDS_GPIO_DEFSTATE_OFF},
	{"alt",         NULL, HTCPLD_GPIO_LED_ALT,         0, 0, LEDS_GPIO_DEFSTATE_OFF},
};

static struct gpio_led_platform_data gpio_leds_data = {
	.leds		= gpio_leds,
	.num_leds	= ARRAY_SIZE(gpio_leds),
};

static struct platform_device gpio_leds_device = {
	.name		= "leds-gpio",
	.id		= 0,
	.dev	= {
		.platform_data	= &gpio_leds_data,
	},
};

/* HTC PLD chips */

static struct resource htcpld_resources[] = {
	[0] = {
		.start  = OMAP_GPIO_IRQ(HTCHERALD_GIRQ_BTNS),
		.end    = OMAP_GPIO_IRQ(HTCHERALD_GIRQ_BTNS),
		.flags  = IORESOURCE_IRQ,
	},
};

struct htcpld_chip_platform_data htcpld_chips[] = {
	[0] = {
		.addr		= 0x03,
		.reset		= 0x04,
		.num_gpios	= 8,
		.gpio_out_base	= HTCPLD_BASE(0, 0),
		.gpio_in_base	= HTCPLD_BASE(4, 0),
	},
	[1] = {
		.addr		= 0x04,
		.reset		= 0x8e,
		.num_gpios	= 8,
		.gpio_out_base	= HTCPLD_BASE(1, 0),
		.gpio_in_base	= HTCPLD_BASE(5, 0),
	},
	[2] = {
		.addr		= 0x05,
		.reset		= 0x80,
		.num_gpios	= 8,
		.gpio_out_base	= HTCPLD_BASE(2, 0),
		.gpio_in_base	= HTCPLD_BASE(6, 0),
		.irq_base	= HTCPLD_IRQ(0, 0),
		.num_irqs	= 8,
	},
	[3] = {
		.addr		= 0x06,
		.reset		= 0x40,
		.num_gpios	= 8,
		.gpio_out_base	= HTCPLD_BASE(3, 0),
		.gpio_in_base	= HTCPLD_BASE(7, 0),
		.irq_base	= HTCPLD_IRQ(1, 0),
		.num_irqs	= 8,
	},
};

struct htcpld_core_platform_data htcpld_pfdata = {
	.int_reset_gpio_hi = HTCPLD_GPIO_INT_RESET_HI,
	.int_reset_gpio_lo = HTCPLD_GPIO_INT_RESET_LO,
	.i2c_adapter_id	   = 1,

	.chip		   = htcpld_chips,
	.num_chip	   = ARRAY_SIZE(htcpld_chips),
};

static struct platform_device htcpld_device = {
	.name		= "i2c-htcpld",
	.id		= -1,
	.resource	= htcpld_resources,
	.num_resources	= ARRAY_SIZE(htcpld_resources),
	.dev	= {
		.platform_data	= &htcpld_pfdata,
	},
};

/* USB Device */
static struct omap_usb_config htcherald_usb_config __initdata = {
	.otg = 0,
	.register_host = 0,
	.register_dev  = 1,
	.hmc_mode = 4,
	.pins[0] = 2,
};

/* LCD Device resources */
static struct omap_lcd_config htcherald_lcd_config __initdata = {
	.ctrl_name	= "internal",
};

static struct omap_board_config_kernel htcherald_config[] __initdata = {
	{ OMAP_TAG_LCD, &htcherald_lcd_config },
};

static struct platform_device lcd_device = {
	.name           = "lcd_htcherald",
	.id             = -1,
};

/* MMC Card */
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
static struct omap_mmc_platform_data htc_mmc1_data = {
	.nr_slots                       = 1,
	.switch_slot                    = NULL,
	.slots[0]       = {
		.ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
		.name                   = "mmcblk",
		.nomux                  = 1,
		.wires                  = 4,
		.switch_pin             = -1,
	},
};

static struct omap_mmc_platform_data *htc_mmc_data[1];
#endif


/* Platform devices for the Herald */
static struct platform_device *devices[] __initdata = {
	&kp_device,
	&lcd_device,
	&htcpld_device,
	&gpio_leds_device,
	&herald_gpiokeys_device,
};

/*
 * Touchscreen
 */
static const struct ads7846_platform_data htcherald_ts_platform_data = {
	.model			= 7846,
	.keep_vref_on		= 1,
	.x_plate_ohms		= 496,
	.gpio_pendown		= HTCHERALD_GPIO_TS,
	.pressure_max		= 100000,
	.pressure_min		= 5000,
	.x_min			= 528,
	.x_max			= 3760,
	.y_min			= 624,
	.y_max			= 3760,
};

static struct spi_board_info __initdata htcherald_spi_board_info[] = {
	{
		.modalias		= "ads7846",
		.platform_data		= &htcherald_ts_platform_data,
		.irq			= OMAP_GPIO_IRQ(HTCHERALD_GPIO_TS),
		.max_speed_hz		= 2500000,
		.bus_num		= 2,
		.chip_select		= 1,
	}
};

/*
 * Init functions from here on
 */

static void __init htcherald_lcd_init(void)
{
	u32 reg;
	unsigned int tries = 200;

	/* disable controller if active */
	reg = omap_readl(OMAP_LCDC_CONTROL);
	if (reg & OMAP_LCDC_CTRL_LCD_EN) {
		reg &= ~OMAP_LCDC_CTRL_LCD_EN;
		omap_writel(reg, OMAP_LCDC_CONTROL);

		/* wait for end of frame */
		while (!(omap_readl(OMAP_LCDC_STATUS) & OMAP_LCDC_STAT_DONE)) {
			tries--;
			if (!tries)
				break;
		}
		if (!tries)
			printk(KERN_WARNING "Timeout waiting for end of frame "
			       "-- LCD may not be available\n");

		/* turn off DMA */
		reg = omap_readw(OMAP_DMA_LCD_CCR);
		reg &= ~(1 << 7);
		omap_writew(reg, OMAP_DMA_LCD_CCR);

		reg = omap_readw(OMAP_DMA_LCD_CTRL);
		reg &= ~(1 << 8);
		omap_writew(reg, OMAP_DMA_LCD_CTRL);
	}
}

static void __init htcherald_map_io(void)
{
	omap1_map_common_io();

	/*
	 * The LCD panel must be disabled and DMA turned off here, as doing
	 * it later causes the LCD never to reinitialize.
	 */
	htcherald_lcd_init();

	printk(KERN_INFO "htcherald_map_io done.\n");
}

static void __init htcherald_disable_watchdog(void)
{
	/* Disable watchdog if running */
	if (omap_readl(OMAP_WDT_TIMER_MODE) & 0x8000) {
		/*
		 * disable a potentially running watchdog timer before
		 * it kills us.
		 */
		printk(KERN_WARNING "OMAP850 Watchdog seems to be activated, disabling it for now.\n");
		omap_writel(0xF5, OMAP_WDT_TIMER_MODE);
		omap_writel(0xA0, OMAP_WDT_TIMER_MODE);
	}
}

#define HTCHERALD_GPIO_USB_EN1 33
#define HTCHERALD_GPIO_USB_EN2 73
#define HTCHERALD_GPIO_USB_DM  35
#define HTCHERALD_GPIO_USB_DP  36

static void __init htcherald_usb_enable(void)
{
	unsigned int tries = 20;
	unsigned int value = 0;

	/* Request the GPIOs we need to control here */
	if (gpio_request(HTCHERALD_GPIO_USB_EN1, "herald_usb") < 0)
		goto err1;

	if (gpio_request(HTCHERALD_GPIO_USB_EN2, "herald_usb") < 0)
		goto err2;

	if (gpio_request(HTCHERALD_GPIO_USB_DM, "herald_usb") < 0)
		goto err3;

	if (gpio_request(HTCHERALD_GPIO_USB_DP, "herald_usb") < 0)
		goto err4;

	/* force USB_EN GPIO to 0 */
	do {
		/* output low */
		gpio_direction_output(HTCHERALD_GPIO_USB_EN1, 0);
	} while ((value = gpio_get_value(HTCHERALD_GPIO_USB_EN1)) == 1 &&
			--tries);

	if (value == 1)
		printk(KERN_WARNING "Unable to reset USB, trying to continue\n");

	gpio_direction_output(HTCHERALD_GPIO_USB_EN2, 0); /* output low */
	gpio_direction_input(HTCHERALD_GPIO_USB_DM); /* input */
	gpio_direction_input(HTCHERALD_GPIO_USB_DP); /* input */

	goto done;

err4:
	gpio_free(HTCHERALD_GPIO_USB_DM);
err3:
	gpio_free(HTCHERALD_GPIO_USB_EN2);
err2:
	gpio_free(HTCHERALD_GPIO_USB_EN1);
err1:
	printk(KERN_ERR "Unabled to request GPIO for USB\n");
done:
	printk(KERN_INFO "USB setup complete.\n");
}

static void __init htcherald_init(void)
{
	printk(KERN_INFO "HTC Herald init.\n");

	/* Do board initialization before we register all the devices */
	omap_gpio_init();

	omap_board_config = htcherald_config;
	omap_board_config_size = ARRAY_SIZE(htcherald_config);
	platform_add_devices(devices, ARRAY_SIZE(devices));

	htcherald_disable_watchdog();

	htcherald_usb_enable();
	omap1_usb_init(&htcherald_usb_config);

	spi_register_board_info(htcherald_spi_board_info,
		ARRAY_SIZE(htcherald_spi_board_info));

	omap_register_i2c_bus(1, 100, NULL, 0);

#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
	htc_mmc_data[0] = &htc_mmc1_data;
	omap1_init_mmc(htc_mmc_data, 1);
#endif
}

static void __init htcherald_init_irq(void)
{
	printk(KERN_INFO "htcherald_init_irq.\n");
	omap1_init_common_hw();
	omap_init_irq();
}

MACHINE_START(HERALD, "HTC Herald")
	/* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
	/* Maintainer: wing-linux.sourceforge.net */
	.boot_params    = 0x10000100,
	.map_io         = htcherald_map_io,
	.reserve	= omap_reserve,
	.init_irq       = htcherald_init_irq,
	.init_machine   = htcherald_init,
	.timer          = &omap_timer,
MACHINE_END
Commit	Line	Data
9c2816f7 CM	1	/*
	2	* HTC Herald board configuration
	3	* Copyright (C) 2009 Cory Maccarrone <darkstar6262@gmail.com>
	4	* Copyright (C) 2009 Wing Linux
	5	*
	6	* Based on the board-htcwizard.c file from the linwizard project:
	7	* Copyright (C) 2006 Unai Uribarri
	8	* Copyright (C) 2008 linwizard.sourceforge.net
	9	*
	10	* This program is free software; you can redistribute it and/or
	11	* modify it under the terms of the GNU General Public License as
	12	* published by the Free Software Foundation; either version 2 of the
	13	* License, or (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful, but
	16	* WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	18	* General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public License
	21	* along with this program; if not, write to the Free Software
	22	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	23	* 02110-1301, USA.
	24	*
	25	*/
	26
	27	#include <linux/kernel.h>
	28	#include <linux/init.h>
	29	#include <linux/platform_device.h>
	30	#include <linux/input.h>
9c2816f7 CM	31	#include <linux/io.h>
9c2816f7 CM	32	#include <linux/gpio.h>
493c32a0 CM	33	#include <linux/gpio_keys.h>
	34	#include <linux/i2c.h>
	35	#include <linux/i2c-gpio.h>
	36	#include <linux/htcpld.h>
	37	#include <linux/leds.h>
	38	#include <linux/spi/spi.h>
	39	#include <linux/spi/ads7846.h>
9c2816f7 CM	40
	41	#include <asm/mach-types.h>
	42	#include <asm/mach/arch.h>
	43
	44	#include <plat/omap7xx.h>
	45	#include <plat/common.h>
	46	#include <plat/board.h>
	47	#include <plat/keypad.h>
106997c1	48	#include <plat/usb.h>
493c32a0	49	#include <plat/mmc.h>
9c2816f7 CM	50
	51	#include <mach/irqs.h>
	52
	53	#include <linux/delay.h>
	54
	55	/* LCD register definition */
	56	#define OMAP_LCDC_CONTROL (0xfffec000 + 0x00)
	57	#define OMAP_LCDC_STATUS (0xfffec000 + 0x10)
	58	#define OMAP_DMA_LCD_CCR (0xfffee300 + 0xc2)
	59	#define OMAP_DMA_LCD_CTRL (0xfffee300 + 0xc4)
	60	#define OMAP_LCDC_CTRL_LCD_EN (1 << 0)
	61	#define OMAP_LCDC_STAT_DONE (1 << 0)
	62
493c32a0 CM	63	/* GPIO definitions for the power button and keyboard slide switch */
	64	#define HTCHERALD_GPIO_POWER 139
	65	#define HTCHERALD_GPIO_SLIDE 174
	66	#define HTCHERALD_GIRQ_BTNS 141
9c2816f7	67
493c32a0 CM	68	/* GPIO definitions for the touchscreen */
	69	#define HTCHERALD_GPIO_TS 76
	70
	71	/* HTCPLD definitions */
	72
	73	/*
	74	* CPLD Logic
	75	*
	76	* Chip 3 - 0x03
	77	*
	78	* Function 7 6 5 4 3 2 1 0
	79	* ------------------------------------
	80	* DPAD light x x x x x x x 1
	81	* SoundDev x x x x 1 x x x
	82	* Screen white 1 x x x x x x x
	83	* MMC power on x x x x x 1 x x
	84	* Happy times (n) 0 x x x x 1 x x
	85	*
	86	* Chip 4 - 0x04
	87	*
	88	* Function 7 6 5 4 3 2 1 0
	89	* ------------------------------------
	90	* Keyboard light x x x x x x x 1
	91	* LCD Bright (4) x x x x x 1 1 x
	92	* LCD Bright (3) x x x x x 0 1 x
	93	* LCD Bright (2) x x x x x 1 0 x
	94	* LCD Bright (1) x x x x x 0 0 x
	95	* LCD Off x x x x 0 x x x
	96	* LCD image (fb) 1 x x x x x x x
	97	* LCD image (white) 0 x x x x x x x
	98	* Caps lock LED x x 1 x x x x x
	99	*
	100	* Chip 5 - 0x05
	101	*
	102	* Function 7 6 5 4 3 2 1 0
	103	* ------------------------------------
	104	* Red (solid) x x x x x 1 x x
	105	* Red (flash) x x x x x x 1 x
	106	* Green (GSM flash) x x x x 1 x x x
	107	* Green (GSM solid) x x x 1 x x x x
	108	* Green (wifi flash) x x 1 x x x x x
	109	* Blue (bt flash) x 1 x x x x x x
	110	* DPAD Int Enable 1 x x x x x x 0
	111	*
	112	* (Combinations of the above can be made for different colors.)
	113	* The direction pad interrupt enable must be set each time the
	114	* interrupt is handled.
	115	*
	116	* Chip 6 - 0x06
	117	*
	118	* Function 7 6 5 4 3 2 1 0
	119	* ------------------------------------
	120	* Vibrator x x x x 1 x x x
	121	* Alt LED x x x 1 x x x x
	122	* Screen white 1 x x x x x x x
	123	* Screen white x x 1 x x x x x
	124	* Screen white x 0 x x x x x x
	125	* Enable kbd dpad x x x x x x 0 x
	126	* Happy Times 0 1 0 x x x 0 x
	127	*/
	128
	129	/*
	130	* HTCPLD GPIO lines start 16 after OMAP_MAX_GPIO_LINES to account
	131	* for the 16 MPUIO lines.
132	*/
133	#define HTCPLD_GPIO_START_OFFSET (OMAP_MAX_GPIO_LINES + 16)
134	#define HTCPLD_IRQ(chip, offset) (OMAP_IRQ_END + 8 * (chip) + (offset))
135	#define HTCPLD_BASE(chip, offset) \
136	(HTCPLD_GPIO_START_OFFSET + 8 * (chip) + (offset))
137
138	#define HTCPLD_GPIO_LED_DPAD HTCPLD_BASE(0, 0)
139	#define HTCPLD_GPIO_LED_KBD HTCPLD_BASE(1, 0)
140	#define HTCPLD_GPIO_LED_CAPS HTCPLD_BASE(1, 5)
141	#define HTCPLD_GPIO_LED_RED_FLASH HTCPLD_BASE(2, 1)
142	#define HTCPLD_GPIO_LED_RED_SOLID HTCPLD_BASE(2, 2)
143	#define HTCPLD_GPIO_LED_GREEN_FLASH HTCPLD_BASE(2, 3)
144	#define HTCPLD_GPIO_LED_GREEN_SOLID HTCPLD_BASE(2, 4)
145	#define HTCPLD_GPIO_LED_WIFI HTCPLD_BASE(2, 5)
146	#define HTCPLD_GPIO_LED_BT HTCPLD_BASE(2, 6)
147	#define HTCPLD_GPIO_LED_VIBRATE HTCPLD_BASE(3, 3)
148	#define HTCPLD_GPIO_LED_ALT HTCPLD_BASE(3, 4)
149
150	#define HTCPLD_GPIO_RIGHT_KBD HTCPLD_BASE(6, 7)
151	#define HTCPLD_GPIO_UP_KBD HTCPLD_BASE(6, 6)
152	#define HTCPLD_GPIO_LEFT_KBD HTCPLD_BASE(6, 5)
153	#define HTCPLD_GPIO_DOWN_KBD HTCPLD_BASE(6, 4)
154
155	#define HTCPLD_GPIO_RIGHT_DPAD HTCPLD_BASE(7, 7)
156	#define HTCPLD_GPIO_UP_DPAD HTCPLD_BASE(7, 6)
157	#define HTCPLD_GPIO_LEFT_DPAD HTCPLD_BASE(7, 5)
158	#define HTCPLD_GPIO_DOWN_DPAD HTCPLD_BASE(7, 4)
159	#define HTCPLD_GPIO_ENTER_DPAD HTCPLD_BASE(7, 3)
160
161	/*
162	* The htcpld chip requires a gpio write to a specific line
163	* to re-enable interrupts after one has occurred.
164	*/
165	#define HTCPLD_GPIO_INT_RESET_HI HTCPLD_BASE(2, 7)
166	#define HTCPLD_GPIO_INT_RESET_LO HTCPLD_BASE(2, 0)
167
168	/* Chip 5 */
169	#define HTCPLD_IRQ_RIGHT_KBD HTCPLD_IRQ(0, 7)
170	#define HTCPLD_IRQ_UP_KBD HTCPLD_IRQ(0, 6)
171	#define HTCPLD_IRQ_LEFT_KBD HTCPLD_IRQ(0, 5)
172	#define HTCPLD_IRQ_DOWN_KBD HTCPLD_IRQ(0, 4)
173
174	/* Chip 6 */
175	#define HTCPLD_IRQ_RIGHT_DPAD HTCPLD_IRQ(1, 7)
176	#define HTCPLD_IRQ_UP_DPAD HTCPLD_IRQ(1, 6)
177	#define HTCPLD_IRQ_LEFT_DPAD HTCPLD_IRQ(1, 5)
178	#define HTCPLD_IRQ_DOWN_DPAD HTCPLD_IRQ(1, 4)
179	#define HTCPLD_IRQ_ENTER_DPAD HTCPLD_IRQ(1, 3)
9c2816f7 CM	180
	181	/* Keyboard definition */
	182
	183	static int htc_herald_keymap[] = {
	184	KEY(0, 0, KEY_RECORD), /* Mail button */
	185	KEY(0, 1, KEY_CAMERA), /* Camera */
	186	KEY(0, 2, KEY_PHONE), /* Send key */
	187	KEY(0, 3, KEY_VOLUMEUP), /* Volume up */
	188	KEY(0, 4, KEY_F2), /* Right bar (landscape) */
	189	KEY(0, 5, KEY_MAIL), /* Win key (portrait) */
	190	KEY(0, 6, KEY_DIRECTORY), /* Right bar (protrait) */
	191	KEY(1, 0, KEY_LEFTCTRL), /* Windows key */
	192	KEY(1, 1, KEY_COMMA),
	193	KEY(1, 2, KEY_M),
	194	KEY(1, 3, KEY_K),
	195	KEY(1, 4, KEY_SLASH), /* OK key */
	196	KEY(1, 5, KEY_I),
	197	KEY(1, 6, KEY_U),
	198	KEY(2, 0, KEY_LEFTALT),
	199	KEY(2, 1, KEY_TAB),
	200	KEY(2, 2, KEY_N),
	201	KEY(2, 3, KEY_J),
	202	KEY(2, 4, KEY_ENTER),
	203	KEY(2, 5, KEY_H),
	204	KEY(2, 6, KEY_Y),
	205	KEY(3, 0, KEY_SPACE),
	206	KEY(3, 1, KEY_L),
	207	KEY(3, 2, KEY_B),
	208	KEY(3, 3, KEY_V),
	209	KEY(3, 4, KEY_BACKSPACE),
	210	KEY(3, 5, KEY_G),
	211	KEY(3, 6, KEY_T),
	212	KEY(4, 0, KEY_CAPSLOCK), /* Shift */
	213	KEY(4, 1, KEY_C),
	214	KEY(4, 2, KEY_F),
	215	KEY(4, 3, KEY_R),
	216	KEY(4, 4, KEY_O),
	217	KEY(4, 5, KEY_E),
	218	KEY(4, 6, KEY_D),
	219	KEY(5, 0, KEY_X),
	220	KEY(5, 1, KEY_Z),
	221	KEY(5, 2, KEY_S),
	222	KEY(5, 3, KEY_W),
	223	KEY(5, 4, KEY_P),
	224	KEY(5, 5, KEY_Q),
	225	KEY(5, 6, KEY_A),
	226	KEY(6, 0, KEY_CONNECT), /* Voice button */
	227	KEY(6, 2, KEY_CANCEL), /* End key */
	228	KEY(6, 3, KEY_VOLUMEDOWN), /* Volume down */
	229	KEY(6, 4, KEY_F1), /* Left bar (landscape) */
	230	KEY(6, 5, KEY_WWW), /* OK button (portrait) */
	231	KEY(6, 6, KEY_CALENDAR), /* Left bar (portrait) */
	232	0
	233	};
	234
	235	struct omap_kp_platform_data htcherald_kp_data = {
	236	.rows = 7,
	237	.cols = 7,
	238	.delay = 20,
	239	.rep = 1,
	240	.keymap = htc_herald_keymap,
	241	};
	242
	243	static struct resource kp_resources[] = {
244	[0] = {
245	.start = INT_7XX_MPUIO_KEYPAD,
246	.end = INT_7XX_MPUIO_KEYPAD,
247	.flags = IORESOURCE_IRQ,
248	},
249	};
250
251	static struct platform_device kp_device = {
252	.name = "omap-keypad",
253	.id = -1,
254	.dev = {
255	.platform_data = &htcherald_kp_data,
256	},
257	.num_resources = ARRAY_SIZE(kp_resources),
258	.resource = kp_resources,
259	};
260
493c32a0 CM	261	/* GPIO buttons for keyboard slide and power button */
	262	static struct gpio_keys_button herald_gpio_keys_table[] = {
	263	{BTN_0, HTCHERALD_GPIO_POWER, 1, "POWER", EV_KEY, 1, 20},
	264	{SW_LID, HTCHERALD_GPIO_SLIDE, 0, "SLIDE", EV_SW, 1, 20},
	265
	266	{KEY_LEFT, HTCPLD_GPIO_LEFT_KBD, 1, "LEFT", EV_KEY, 1, 20},
	267	{KEY_RIGHT, HTCPLD_GPIO_RIGHT_KBD, 1, "RIGHT", EV_KEY, 1, 20},
	268	{KEY_UP, HTCPLD_GPIO_UP_KBD, 1, "UP", EV_KEY, 1, 20},
	269	{KEY_DOWN, HTCPLD_GPIO_DOWN_KBD, 1, "DOWN", EV_KEY, 1, 20},
	270
	271	{KEY_LEFT, HTCPLD_GPIO_LEFT_DPAD, 1, "DLEFT", EV_KEY, 1, 20},
	272	{KEY_RIGHT, HTCPLD_GPIO_RIGHT_DPAD, 1, "DRIGHT", EV_KEY, 1, 20},
	273	{KEY_UP, HTCPLD_GPIO_UP_DPAD, 1, "DUP", EV_KEY, 1, 20},
	274	{KEY_DOWN, HTCPLD_GPIO_DOWN_DPAD, 1, "DDOWN", EV_KEY, 1, 20},
	275	{KEY_ENTER, HTCPLD_GPIO_ENTER_DPAD, 1, "DENTER", EV_KEY, 1, 20},
	276	};
	277
	278	static struct gpio_keys_platform_data herald_gpio_keys_data = {
	279	.buttons = herald_gpio_keys_table,
	280	.nbuttons = ARRAY_SIZE(herald_gpio_keys_table),
	281	.rep = 1,
	282	};
	283
	284	static struct platform_device herald_gpiokeys_device = {
	285	.name = "gpio-keys",
	286	.id = -1,
	287	.dev = {
	288	.platform_data = &herald_gpio_keys_data,
	289	},
	290	};
	291
	292	/* LEDs for the Herald. These connect to the HTCPLD GPIO device. */
	293	static struct gpio_led gpio_leds[] = {
	294	{"dpad", NULL, HTCPLD_GPIO_LED_DPAD, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	295	{"kbd", NULL, HTCPLD_GPIO_LED_KBD, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	296	{"vibrate", NULL, HTCPLD_GPIO_LED_VIBRATE, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	297	{"green_solid", NULL, HTCPLD_GPIO_LED_GREEN_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	298	{"green_flash", NULL, HTCPLD_GPIO_LED_GREEN_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	299	{"red_solid", "mmc0", HTCPLD_GPIO_LED_RED_SOLID, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	300	{"red_flash", NULL, HTCPLD_GPIO_LED_RED_FLASH, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	301	{"wifi", NULL, HTCPLD_GPIO_LED_WIFI, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	302	{"bt", NULL, HTCPLD_GPIO_LED_BT, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	303	{"caps", NULL, HTCPLD_GPIO_LED_CAPS, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	304	{"alt", NULL, HTCPLD_GPIO_LED_ALT, 0, 0, LEDS_GPIO_DEFSTATE_OFF},
	305	};
	306
	307	static struct gpio_led_platform_data gpio_leds_data = {
	308	.leds = gpio_leds,
	309	.num_leds = ARRAY_SIZE(gpio_leds),
	310	};
	311
	312	static struct platform_device gpio_leds_device = {
	313	.name = "leds-gpio",
	314	.id = 0,
	315	.dev = {
	316	.platform_data = &gpio_leds_data,
	317	},
	318	};
	319
	320	/* HTC PLD chips */
	321
	322	static struct resource htcpld_resources[] = {
	323	[0] = {
	324	.start = OMAP_GPIO_IRQ(HTCHERALD_GIRQ_BTNS),
325	.end = OMAP_GPIO_IRQ(HTCHERALD_GIRQ_BTNS),
326	.flags = IORESOURCE_IRQ,
327	},
328	};
329
330	struct htcpld_chip_platform_data htcpld_chips[] = {
331	[0] = {
332	.addr = 0x03,
333	.reset = 0x04,
334	.num_gpios = 8,
335	.gpio_out_base = HTCPLD_BASE(0, 0),
336	.gpio_in_base = HTCPLD_BASE(4, 0),
337	},
338	[1] = {
339	.addr = 0x04,
340	.reset = 0x8e,
341	.num_gpios = 8,
342	.gpio_out_base = HTCPLD_BASE(1, 0),
343	.gpio_in_base = HTCPLD_BASE(5, 0),
344	},
345	[2] = {
346	.addr = 0x05,
347	.reset = 0x80,
348	.num_gpios = 8,
349	.gpio_out_base = HTCPLD_BASE(2, 0),
350	.gpio_in_base = HTCPLD_BASE(6, 0),
351	.irq_base = HTCPLD_IRQ(0, 0),
352	.num_irqs = 8,
353	},
354	[3] = {
355	.addr = 0x06,
356	.reset = 0x40,
357	.num_gpios = 8,
358	.gpio_out_base = HTCPLD_BASE(3, 0),
359	.gpio_in_base = HTCPLD_BASE(7, 0),
360	.irq_base = HTCPLD_IRQ(1, 0),
361	.num_irqs = 8,
362	},
363	};
364
365	struct htcpld_core_platform_data htcpld_pfdata = {
366	.int_reset_gpio_hi = HTCPLD_GPIO_INT_RESET_HI,
367	.int_reset_gpio_lo = HTCPLD_GPIO_INT_RESET_LO,
368	.i2c_adapter_id = 1,
369
370	.chip = htcpld_chips,
371	.num_chip = ARRAY_SIZE(htcpld_chips),
372	};
373
374	static struct platform_device htcpld_device = {
375	.name = "i2c-htcpld",
376	.id = -1,
377	.resource = htcpld_resources,
378	.num_resources = ARRAY_SIZE(htcpld_resources),
379	.dev = {
380	.platform_data = &htcpld_pfdata,
381	},
382	};
383
106997c1 CM	384	/* USB Device */
	385	static struct omap_usb_config htcherald_usb_config __initdata = {
	386	.otg = 0,
	387	.register_host = 0,
	388	.register_dev = 1,
	389	.hmc_mode = 4,
	390	.pins[0] = 2,
	391	};
	392
9c2816f7	393	/* LCD Device resources */
493c32a0 CM	394	static struct omap_lcd_config htcherald_lcd_config __initdata = {
	395	.ctrl_name = "internal",
	396	};
	397
	398	static struct omap_board_config_kernel htcherald_config[] __initdata = {
	399	{ OMAP_TAG_LCD, &htcherald_lcd_config },
	400	};
	401
9c2816f7 CM	402	static struct platform_device lcd_device = {
	403	.name = "lcd_htcherald",
	404	.id = -1,
	405	};
	406
493c32a0 CM	407	/* MMC Card */
	408	#if defined(CONFIG_MMC_OMAP) \|\| defined(CONFIG_MMC_OMAP_MODULE)
	409	static struct omap_mmc_platform_data htc_mmc1_data = {
	410	.nr_slots = 1,
	411	.switch_slot = NULL,
	412	.slots[0] = {
2a12400e	413	.ocr_mask = MMC_VDD_32_33 \| MMC_VDD_33_34,
493c32a0 CM	414	.name = "mmcblk",
	415	.nomux = 1,
	416	.wires = 4,
	417	.switch_pin = -1,
	418	},
	419	};
	420
	421	static struct omap_mmc_platform_data *htc_mmc_data[1];
	422	#endif
	423
	424
	425	/* Platform devices for the Herald */
9c2816f7 CM	426	static struct platform_device *devices[] __initdata = {
	427	&kp_device,
	428	&lcd_device,
493c32a0 CM	429	&htcpld_device,
	430	&gpio_leds_device,
	431	&herald_gpiokeys_device,
	432	};
	433
	434	/*
	435	* Touchscreen
	436	*/
	437	static const struct ads7846_platform_data htcherald_ts_platform_data = {
	438	.model = 7846,
	439	.keep_vref_on = 1,
	440	.x_plate_ohms = 496,
	441	.gpio_pendown = HTCHERALD_GPIO_TS,
	442	.pressure_max = 100000,
	443	.pressure_min = 5000,
	444	.x_min = 528,
	445	.x_max = 3760,
	446	.y_min = 624,
	447	.y_max = 3760,
	448	};
	449
	450	static struct spi_board_info __initdata htcherald_spi_board_info[] = {
	451	{
	452	.modalias = "ads7846",
	453	.platform_data = &htcherald_ts_platform_data,
	454	.irq = OMAP_GPIO_IRQ(HTCHERALD_GPIO_TS),
	455	.max_speed_hz = 2500000,
	456	.bus_num = 2,
	457	.chip_select = 1,
	458	}
9c2816f7 CM	459	};
	460
	461	/*
	462	* Init functions from here on
	463	*/
	464
	465	static void __init htcherald_lcd_init(void)
	466	{
	467	u32 reg;
	468	unsigned int tries = 200;
	469
	470	/* disable controller if active */
	471	reg = omap_readl(OMAP_LCDC_CONTROL);
	472	if (reg & OMAP_LCDC_CTRL_LCD_EN) {
	473	reg &= ~OMAP_LCDC_CTRL_LCD_EN;
	474	omap_writel(reg, OMAP_LCDC_CONTROL);
	475
	476	/* wait for end of frame */
	477	while (!(omap_readl(OMAP_LCDC_STATUS) & OMAP_LCDC_STAT_DONE)) {
	478	tries--;
	479	if (!tries)
	480	break;
	481	}
	482	if (!tries)
	483	printk(KERN_WARNING "Timeout waiting for end of frame "
	484	"-- LCD may not be available\n");
	485
	486	/* turn off DMA */
	487	reg = omap_readw(OMAP_DMA_LCD_CCR);
	488	reg &= ~(1 << 7);
	489	omap_writew(reg, OMAP_DMA_LCD_CCR);
	490
	491	reg = omap_readw(OMAP_DMA_LCD_CTRL);
	492	reg &= ~(1 << 8);
	493	omap_writew(reg, OMAP_DMA_LCD_CTRL);
	494	}
	495	}
	496
	497	static void __init htcherald_map_io(void)
	498	{
	499	omap1_map_common_io();
	500
	501	/*
	502	* The LCD panel must be disabled and DMA turned off here, as doing
	503	* it later causes the LCD never to reinitialize.
	504	*/
	505	htcherald_lcd_init();
	506
	507	printk(KERN_INFO "htcherald_map_io done.\n");
	508	}
	509
	510	static void __init htcherald_disable_watchdog(void)
	511	{
	512	/* Disable watchdog if running */
	513	if (omap_readl(OMAP_WDT_TIMER_MODE) & 0x8000) {
	514	/*
	515	* disable a potentially running watchdog timer before
	516	* it kills us.
	517	*/
	518	printk(KERN_WARNING "OMAP850 Watchdog seems to be activated, disabling it for now.\n");
	519	omap_writel(0xF5, OMAP_WDT_TIMER_MODE);
	520	omap_writel(0xA0, OMAP_WDT_TIMER_MODE);
	521	}
	522	}
523
106997c1 CM	524	#define HTCHERALD_GPIO_USB_EN1 33
	525	#define HTCHERALD_GPIO_USB_EN2 73
	526	#define HTCHERALD_GPIO_USB_DM 35
	527	#define HTCHERALD_GPIO_USB_DP 36
	528
	529	static void __init htcherald_usb_enable(void)
	530	{
	531	unsigned int tries = 20;
	532	unsigned int value = 0;
	533
	534	/* Request the GPIOs we need to control here */
	535	if (gpio_request(HTCHERALD_GPIO_USB_EN1, "herald_usb") < 0)
	536	goto err1;
	537
	538	if (gpio_request(HTCHERALD_GPIO_USB_EN2, "herald_usb") < 0)
	539	goto err2;
	540
	541	if (gpio_request(HTCHERALD_GPIO_USB_DM, "herald_usb") < 0)
	542	goto err3;
	543
	544	if (gpio_request(HTCHERALD_GPIO_USB_DP, "herald_usb") < 0)
	545	goto err4;
	546
	547	/* force USB_EN GPIO to 0 */
	548	do {
	549	/* output low */
	550	gpio_direction_output(HTCHERALD_GPIO_USB_EN1, 0);
	551	} while ((value = gpio_get_value(HTCHERALD_GPIO_USB_EN1)) == 1 &&
	552	--tries);
	553
	554	if (value == 1)
	555	printk(KERN_WARNING "Unable to reset USB, trying to continue\n");
	556
	557	gpio_direction_output(HTCHERALD_GPIO_USB_EN2, 0); /* output low */
	558	gpio_direction_input(HTCHERALD_GPIO_USB_DM); /* input */
	559	gpio_direction_input(HTCHERALD_GPIO_USB_DP); /* input */
	560
	561	goto done;
	562
	563	err4:
	564	gpio_free(HTCHERALD_GPIO_USB_DM);
	565	err3:
	566	gpio_free(HTCHERALD_GPIO_USB_EN2);
	567	err2:
	568	gpio_free(HTCHERALD_GPIO_USB_EN1);
	569	err1:
	570	printk(KERN_ERR "Unabled to request GPIO for USB\n");
	571	done:
	572	printk(KERN_INFO "USB setup complete.\n");
	573	}
	574
9c2816f7 CM	575	static void __init htcherald_init(void)
	576	{
	577	printk(KERN_INFO "HTC Herald init.\n");
	578
493c32a0	579	/* Do board initialization before we register all the devices */
9c2816f7 CM	580	omap_gpio_init();
	581
	582	omap_board_config = htcherald_config;
	583	omap_board_config_size = ARRAY_SIZE(htcherald_config);
	584	platform_add_devices(devices, ARRAY_SIZE(devices));
	585
	586	htcherald_disable_watchdog();
106997c1 CM	587
106997c1 CM	588	htcherald_usb_enable();
dd0cdd88	589	omap1_usb_init(&htcherald_usb_config);
493c32a0 CM	590
	591	spi_register_board_info(htcherald_spi_board_info,
	592	ARRAY_SIZE(htcherald_spi_board_info));
	593
	594	omap_register_i2c_bus(1, 100, NULL, 0);
	595
	596	#if defined(CONFIG_MMC_OMAP) \|\| defined(CONFIG_MMC_OMAP_MODULE)
	597	htc_mmc_data[0] = &htc_mmc1_data;
	598	omap1_init_mmc(htc_mmc_data, 1);
	599	#endif
9c2816f7 CM	600	}
	601
	602	static void __init htcherald_init_irq(void)
	603	{
	604	printk(KERN_INFO "htcherald_init_irq.\n");
	605	omap1_init_common_hw();
	606	omap_init_irq();
	607	}
	608
	609	MACHINE_START(HERALD, "HTC Herald")
	610	/* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
	611	/* Maintainer: wing-linux.sourceforge.net */
9c2816f7 CM	612	.boot_params = 0x10000100,
9c2816f7 CM	613	.map_io = htcherald_map_io,
71ee7dad	614	.reserve = omap_reserve,
9c2816f7 CM	615	.init_irq = htcherald_init_irq,
	616	.init_machine = htcherald_init,
	617	.timer = &omap_timer,
	618	MACHINE_END