/* * 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/delay.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 <linux/omapfb.h> #include <linux/platform_data/keypad-omap.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <mach/omap7xx.h> #include <plat/mmc.h> #include <mach/irqs.h> #include <mach/usb.h> #include "common.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 const unsigned int htc_herald_keymap[] = { KEY(0, 0, KEY_RECORD), /* Mail button */ KEY(1, 0, KEY_CAMERA), /* Camera */ KEY(2, 0, KEY_PHONE), /* Send key */ KEY(3, 0, KEY_VOLUMEUP), /* Volume up */ KEY(4, 0, KEY_F2), /* Right bar (landscape) */ KEY(5, 0, KEY_MAIL), /* Win key (portrait) */ KEY(6, 0, KEY_DIRECTORY), /* Right bar (protrait) */ KEY(0, 1, KEY_LEFTCTRL), /* Windows key */ KEY(1, 1, KEY_COMMA), KEY(2, 1, KEY_M), KEY(3, 1, KEY_K), KEY(4, 1, KEY_SLASH), /* OK key */ KEY(5, 1, KEY_I), KEY(6, 1, KEY_U), KEY(0, 2, KEY_LEFTALT), KEY(1, 2, KEY_TAB), KEY(2, 2, KEY_N), KEY(3, 2, KEY_J), KEY(4, 2, KEY_ENTER), KEY(5, 2, KEY_H), KEY(6, 2, KEY_Y), KEY(0, 3, KEY_SPACE), KEY(1, 3, KEY_L), KEY(2, 3, KEY_B), KEY(3, 3, KEY_V), KEY(4, 3, KEY_BACKSPACE), KEY(5, 3, KEY_G), KEY(6, 3, KEY_T), KEY(0, 4, KEY_CAPSLOCK), /* Shift */ KEY(1, 4, KEY_C), KEY(2, 4, KEY_F), KEY(3, 4, KEY_R), KEY(4, 4, KEY_O), KEY(5, 4, KEY_E), KEY(6, 4, KEY_D), KEY(0, 5, KEY_X), KEY(1, 5, KEY_Z), KEY(2, 5, KEY_S), KEY(3, 5, KEY_W), KEY(4, 5, KEY_P), KEY(5, 5, KEY_Q), KEY(6, 5, KEY_A), KEY(0, 6, KEY_CONNECT), /* Voice button */ KEY(2, 6, KEY_CANCEL), /* End key */ KEY(3, 6, KEY_VOLUMEDOWN), /* Volume down */ KEY(4, 6, KEY_F1), /* Left bar (landscape) */ KEY(5, 6, KEY_WWW), /* OK button (portrait) */ KEY(6, 6, KEY_CALENDAR), /* Left bar (portrait) */ }; static const struct matrix_keymap_data htc_herald_keymap_data = { .keymap = htc_herald_keymap, .keymap_size = ARRAY_SIZE(htc_herald_keymap), }; static struct omap_kp_platform_data htcherald_kp_data = { .rows = 7, .cols = 7, .delay = 20, .rep = true, .keymap_data = &htc_herald_keymap_data, }; 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 = true, }; 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] = { .flags = IORESOURCE_IRQ, }, }; static 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, }, }; static 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 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, .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) pr_err("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) { omap7xx_map_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 */ htcpld_resources[0].start = gpio_to_irq(HTCHERALD_GIRQ_BTNS); htcpld_resources[0].end = gpio_to_irq(HTCHERALD_GIRQ_BTNS); platform_add_devices(devices, ARRAY_SIZE(devices)); htcherald_disable_watchdog(); htcherald_usb_enable(); omap1_usb_init(&htcherald_usb_config); htcherald_spi_board_info[0].irq = gpio_to_irq(HTCHERALD_GPIO_TS); 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 omapfb_set_lcd_config(&htcherald_lcd_config); } MACHINE_START(HERALD, "HTC Herald") /* Maintainer: Cory Maccarrone <darkstar6262@gmail.com> */ /* Maintainer: wing-linux.sourceforge.net */ .atag_offset = 0x100, .map_io = htcherald_map_io, .init_early = omap1_init_early, .reserve = omap_reserve, .init_irq = omap1_init_irq, .init_machine = htcherald_init, .init_late = omap1_init_late, .timer = &omap1_timer, .restart = omap1_restart, MACHINE_END