arch/arm/mach-omap1/board-htcherald.c - kernel/skids - Git at Google

 /*
  * 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 <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 <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)

 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 },
 };

 /* 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,
 };

 /* 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 platform_device lcd_device = {
 	.name           = "lcd_htcherald",
 	.id             = -1,
 };

 static struct platform_device *devices[] __initdata = {
 	&kp_device,
 	&lcd_device,
 };

 /*
  * 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");

 	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();
 	omap_usb_init(&htcherald_usb_config);
 }

 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 */
 	.phys_io        = 0xfff00000,
 	.io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params    = 0x10000100,
 	.map_io         = htcherald_map_io,
 	.init_irq       = htcherald_init_irq,
 	.init_machine   = htcherald_init,
 	.timer          = &omap_timer,
 MACHINE_END
	/*
	* 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 <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 <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)

	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 },
	};

	/* 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,
	};

	/* 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 platform_device lcd_device = {
	.name = "lcd_htcherald",
	.id = -1,
	};

	static struct platform_device *devices[] __initdata = {
	&kp_device,
	&lcd_device,
	};

	/*
	* 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");

	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();
	omap_usb_init(&htcherald_usb_config);
	}

	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 */
	.phys_io = 0xfff00000,
	.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
	.boot_params = 0x10000100,
	.map_io = htcherald_map_io,
	.init_irq = htcherald_init_irq,
	.init_machine = htcherald_init,
	.timer = &omap_timer,
	MACHINE_END