diff options
Diffstat (limited to 'arch/arm/mach-omap1/board-htcherald.c')
-rw-r--r-- | arch/arm/mach-omap1/board-htcherald.c | 585 |
1 files changed, 585 insertions, 0 deletions
diff --git a/arch/arm/mach-omap1/board-htcherald.c b/arch/arm/mach-omap1/board-htcherald.c new file mode 100644 index 000000000..291d294b5 --- /dev/null +++ b/arch/arm/mach-omap1/board-htcherald.c @@ -0,0 +1,585 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * 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 + */ +#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/platform_data/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 <linux/soc/ti/omap1-io.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> + +#include "hardware.h" +#include "omap7xx.h" +#include "mmc.h" +#include "irqs.h" +#include "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) + +/* 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 (portrait) */ + 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 const 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 = { + .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 const struct omap_lcd_config htcherald_lcd_config __initconst = { + .ctrl_name = "internal", +}; + +static struct platform_device lcd_device = { + .name = "lcd_htcherald", + .id = -1, +}; + +/* MMC Card */ +#if IS_ENABLED(CONFIG_MMC_OMAP) +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 IS_ENABLED(CONFIG_MMC_OMAP) + 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, + .init_irq = omap1_init_irq, + .handle_irq = omap1_handle_irq, + .init_machine = htcherald_init, + .init_late = omap1_init_late, + .init_time = omap1_timer_init, + .restart = omap1_restart, +MACHINE_END |