[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/bootmem.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
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>
	31	#include <linux/bootmem.h>
	32	#include <linux/io.h>
	33	#include <linux/gpio.h>
	34
	35	#include <asm/mach-types.h>
	36	#include <asm/mach/arch.h>
	37
	38	#include <plat/omap7xx.h>
	39	#include <plat/common.h>
	40	#include <plat/board.h>
	41	#include <plat/keypad.h>
106997c1	42	#include <plat/usb.h>
9c2816f7 CM	43
	44	#include <mach/irqs.h>
	45
	46	#include <linux/delay.h>
	47
	48	/* LCD register definition */
	49	#define OMAP_LCDC_CONTROL (0xfffec000 + 0x00)
	50	#define OMAP_LCDC_STATUS (0xfffec000 + 0x10)
	51	#define OMAP_DMA_LCD_CCR (0xfffee300 + 0xc2)
	52	#define OMAP_DMA_LCD_CTRL (0xfffee300 + 0xc4)
	53	#define OMAP_LCDC_CTRL_LCD_EN (1 << 0)
	54	#define OMAP_LCDC_STAT_DONE (1 << 0)
	55
	56	static struct omap_lcd_config htcherald_lcd_config __initdata = {
	57	.ctrl_name = "internal",
	58	};
	59
	60	static struct omap_board_config_kernel htcherald_config[] __initdata = {
	61	{ OMAP_TAG_LCD, &htcherald_lcd_config },
	62	};
	63
	64	/* Keyboard definition */
	65
	66	static int htc_herald_keymap[] = {
	67	KEY(0, 0, KEY_RECORD), /* Mail button */
	68	KEY(0, 1, KEY_CAMERA), /* Camera */
	69	KEY(0, 2, KEY_PHONE), /* Send key */
	70	KEY(0, 3, KEY_VOLUMEUP), /* Volume up */
	71	KEY(0, 4, KEY_F2), /* Right bar (landscape) */
	72	KEY(0, 5, KEY_MAIL), /* Win key (portrait) */
	73	KEY(0, 6, KEY_DIRECTORY), /* Right bar (protrait) */
	74	KEY(1, 0, KEY_LEFTCTRL), /* Windows key */
	75	KEY(1, 1, KEY_COMMA),
	76	KEY(1, 2, KEY_M),
	77	KEY(1, 3, KEY_K),
	78	KEY(1, 4, KEY_SLASH), /* OK key */
	79	KEY(1, 5, KEY_I),
	80	KEY(1, 6, KEY_U),
	81	KEY(2, 0, KEY_LEFTALT),
	82	KEY(2, 1, KEY_TAB),
	83	KEY(2, 2, KEY_N),
	84	KEY(2, 3, KEY_J),
	85	KEY(2, 4, KEY_ENTER),
	86	KEY(2, 5, KEY_H),
	87	KEY(2, 6, KEY_Y),
	88	KEY(3, 0, KEY_SPACE),
	89	KEY(3, 1, KEY_L),
	90	KEY(3, 2, KEY_B),
	91	KEY(3, 3, KEY_V),
	92	KEY(3, 4, KEY_BACKSPACE),
	93	KEY(3, 5, KEY_G),
	94	KEY(3, 6, KEY_T),
	95	KEY(4, 0, KEY_CAPSLOCK), /* Shift */
	96	KEY(4, 1, KEY_C),
	97	KEY(4, 2, KEY_F),
	98	KEY(4, 3, KEY_R),
	99	KEY(4, 4, KEY_O),
	100	KEY(4, 5, KEY_E),
	101	KEY(4, 6, KEY_D),
	102	KEY(5, 0, KEY_X),
	103	KEY(5, 1, KEY_Z),
	104	KEY(5, 2, KEY_S),
	105	KEY(5, 3, KEY_W),
	106	KEY(5, 4, KEY_P),
107	KEY(5, 5, KEY_Q),
108	KEY(5, 6, KEY_A),
109	KEY(6, 0, KEY_CONNECT), /* Voice button */
110	KEY(6, 2, KEY_CANCEL), /* End key */
111	KEY(6, 3, KEY_VOLUMEDOWN), /* Volume down */
112	KEY(6, 4, KEY_F1), /* Left bar (landscape) */
113	KEY(6, 5, KEY_WWW), /* OK button (portrait) */
114	KEY(6, 6, KEY_CALENDAR), /* Left bar (portrait) */
115	0
116	};
117
118	struct omap_kp_platform_data htcherald_kp_data = {
119	.rows = 7,
120	.cols = 7,
121	.delay = 20,
122	.rep = 1,
123	.keymap = htc_herald_keymap,
124	};
125
126	static struct resource kp_resources[] = {
127	[0] = {
128	.start = INT_7XX_MPUIO_KEYPAD,
129	.end = INT_7XX_MPUIO_KEYPAD,
130	.flags = IORESOURCE_IRQ,
131	},
132	};
133
134	static struct platform_device kp_device = {
135	.name = "omap-keypad",
136	.id = -1,
137	.dev = {
138	.platform_data = &htcherald_kp_data,
139	},
140	.num_resources = ARRAY_SIZE(kp_resources),
141	.resource = kp_resources,
142	};
143
106997c1 CM	144	/* USB Device */
	145	static struct omap_usb_config htcherald_usb_config __initdata = {
	146	.otg = 0,
	147	.register_host = 0,
	148	.register_dev = 1,
	149	.hmc_mode = 4,
	150	.pins[0] = 2,
	151	};
	152
9c2816f7 CM	153	/* LCD Device resources */
	154	static struct platform_device lcd_device = {
	155	.name = "lcd_htcherald",
	156	.id = -1,
	157	};
	158
	159	static struct platform_device *devices[] __initdata = {
	160	&kp_device,
	161	&lcd_device,
	162	};
	163
	164	/*
	165	* Init functions from here on
	166	*/
	167
	168	static void __init htcherald_lcd_init(void)
	169	{
	170	u32 reg;
	171	unsigned int tries = 200;
	172
	173	/* disable controller if active */
	174	reg = omap_readl(OMAP_LCDC_CONTROL);
	175	if (reg & OMAP_LCDC_CTRL_LCD_EN) {
	176	reg &= ~OMAP_LCDC_CTRL_LCD_EN;
	177	omap_writel(reg, OMAP_LCDC_CONTROL);
	178
	179	/* wait for end of frame */
	180	while (!(omap_readl(OMAP_LCDC_STATUS) & OMAP_LCDC_STAT_DONE)) {
	181	tries--;
	182	if (!tries)
	183	break;
	184	}
	185	if (!tries)
	186	printk(KERN_WARNING "Timeout waiting for end of frame "
	187	"-- LCD may not be available\n");
	188
	189	/* turn off DMA */
	190	reg = omap_readw(OMAP_DMA_LCD_CCR);
	191	reg &= ~(1 << 7);
	192	omap_writew(reg, OMAP_DMA_LCD_CCR);
	193
	194	reg = omap_readw(OMAP_DMA_LCD_CTRL);
	195	reg &= ~(1 << 8);
	196	omap_writew(reg, OMAP_DMA_LCD_CTRL);
	197	}
	198	}
	199
	200	static void __init htcherald_map_io(void)
	201	{
	202	omap1_map_common_io();
	203
	204	/*
	205	* The LCD panel must be disabled and DMA turned off here, as doing
	206	* it later causes the LCD never to reinitialize.
	207	*/
	208	htcherald_lcd_init();
	209
	210	printk(KERN_INFO "htcherald_map_io done.\n");
	211	}
	212
	213	static void __init htcherald_disable_watchdog(void)
	214	{
	215	/* Disable watchdog if running */
	216	if (omap_readl(OMAP_WDT_TIMER_MODE) & 0x8000) {
217	/*
218	* disable a potentially running watchdog timer before
219	* it kills us.
220	*/
221	printk(KERN_WARNING "OMAP850 Watchdog seems to be activated, disabling it for now.\n");
222	omap_writel(0xF5, OMAP_WDT_TIMER_MODE);
223	omap_writel(0xA0, OMAP_WDT_TIMER_MODE);
224	}
225	}
226
106997c1 CM	227	#define HTCHERALD_GPIO_USB_EN1 33
	228	#define HTCHERALD_GPIO_USB_EN2 73
	229	#define HTCHERALD_GPIO_USB_DM 35
	230	#define HTCHERALD_GPIO_USB_DP 36
	231
	232	static void __init htcherald_usb_enable(void)
	233	{
	234	unsigned int tries = 20;
	235	unsigned int value = 0;
	236
	237	/* Request the GPIOs we need to control here */
	238	if (gpio_request(HTCHERALD_GPIO_USB_EN1, "herald_usb") < 0)
	239	goto err1;
	240
	241	if (gpio_request(HTCHERALD_GPIO_USB_EN2, "herald_usb") < 0)
	242	goto err2;
	243
	244	if (gpio_request(HTCHERALD_GPIO_USB_DM, "herald_usb") < 0)
	245	goto err3;
	246
	247	if (gpio_request(HTCHERALD_GPIO_USB_DP, "herald_usb") < 0)
	248	goto err4;
	249
	250	/* force USB_EN GPIO to 0 */
	251	do {
	252	/* output low */
	253	gpio_direction_output(HTCHERALD_GPIO_USB_EN1, 0);
	254	} while ((value = gpio_get_value(HTCHERALD_GPIO_USB_EN1)) == 1 &&
	255	--tries);
	256
	257	if (value == 1)
	258	printk(KERN_WARNING "Unable to reset USB, trying to continue\n");
	259
	260	gpio_direction_output(HTCHERALD_GPIO_USB_EN2, 0); /* output low */
	261	gpio_direction_input(HTCHERALD_GPIO_USB_DM); /* input */
	262	gpio_direction_input(HTCHERALD_GPIO_USB_DP); /* input */
	263
	264	goto done;
	265
	266	err4:
	267	gpio_free(HTCHERALD_GPIO_USB_DM);
	268	err3:
	269	gpio_free(HTCHERALD_GPIO_USB_EN2);
	270	err2:
	271	gpio_free(HTCHERALD_GPIO_USB_EN1);
	272	err1:
	273	printk(KERN_ERR "Unabled to request GPIO for USB\n");
	274	done:
	275	printk(KERN_INFO "USB setup complete.\n");
	276	}
	277
9c2816f7 CM	278	static void __init htcherald_init(void)
	279	{
	280	printk(KERN_INFO "HTC Herald init.\n");
	281
	282	omap_gpio_init();
	283
	284	omap_board_config = htcherald_config;
	285	omap_board_config_size = ARRAY_SIZE(htcherald_config);
	286	platform_add_devices(devices, ARRAY_SIZE(devices));
	287
	288	htcherald_disable_watchdog();
106997c1 CM	289
	290	htcherald_usb_enable();
	291	omap_usb_init(&htcherald_usb_config);
9c2816f7 CM	292	}
	293
	294	static void __init htcherald_init_irq(void)
	295	{
	296	printk(KERN_INFO "htcherald_init_irq.\n");
	297	omap1_init_common_hw();
	298	omap_init_irq();
	299	}
	300
	301	MACHINE_START(HERALD, "HTC Herald")
	302	/* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */
	303	/* Maintainer: wing-linux.sourceforge.net */
	304	.phys_io = 0xfff00000,
	305	.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
	306	.boot_params = 0x10000100,
	307	.map_io = htcherald_map_io,
	308	.init_irq = htcherald_init_irq,
	309	.init_machine = htcherald_init,
	310	.timer = &omap_timer,
	311	MACHINE_END