| /* |
| * 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 = 10000, |
| .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_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 |