| /* |
| * linux/arch/arm/mach-omap2/board-omap3touchbook.c |
| * |
| * Copyright (C) 2009 Always Innovating |
| * |
| * Modified from mach-omap2/board-omap3beagleboard.c |
| * |
| * Initial code: Grégoire Gentil, Tim Yamin |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/platform_device.h> |
| #include <linux/delay.h> |
| #include <linux/err.h> |
| #include <linux/clk.h> |
| #include <linux/io.h> |
| #include <linux/leds.h> |
| #include <linux/gpio.h> |
| #include <linux/input.h> |
| #include <linux/gpio_keys.h> |
| |
| #include <linux/mtd/mtd.h> |
| #include <linux/mtd/partitions.h> |
| #include <linux/mtd/nand.h> |
| #include <linux/mmc/host.h> |
| |
| #include <linux/platform_data/spi-omap2-mcspi.h> |
| #include <linux/spi/spi.h> |
| |
| #include <linux/spi/ads7846.h> |
| |
| #include <linux/regulator/machine.h> |
| #include <linux/i2c/twl.h> |
| |
| #include <asm/mach-types.h> |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| #include <asm/mach/flash.h> |
| #include <asm/system_info.h> |
| |
| #include "common.h" |
| #include "gpmc.h" |
| #include <linux/platform_data/mtd-nand-omap2.h> |
| |
| #include "mux.h" |
| #include "hsmmc.h" |
| #include "board-flash.h" |
| #include "common-board-devices.h" |
| |
| #include <asm/setup.h> |
| |
| #define OMAP3_AC_GPIO 136 |
| #define OMAP3_TS_GPIO 162 |
| #define TB_BL_PWM_TIMER 9 |
| #define TB_KILL_POWER_GPIO 168 |
| |
| #define NAND_CS 0 |
| |
| static unsigned long touchbook_revision; |
| |
| static struct mtd_partition omap3touchbook_nand_partitions[] = { |
| /* All the partition sizes are listed in terms of NAND block size */ |
| { |
| .name = "X-Loader", |
| .offset = 0, |
| .size = 4 * NAND_BLOCK_SIZE, |
| .mask_flags = MTD_WRITEABLE, /* force read-only */ |
| }, |
| { |
| .name = "U-Boot", |
| .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */ |
| .size = 15 * NAND_BLOCK_SIZE, |
| .mask_flags = MTD_WRITEABLE, /* force read-only */ |
| }, |
| { |
| .name = "U-Boot Env", |
| .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */ |
| .size = 1 * NAND_BLOCK_SIZE, |
| }, |
| { |
| .name = "Kernel", |
| .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */ |
| .size = 32 * NAND_BLOCK_SIZE, |
| }, |
| { |
| .name = "File System", |
| .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */ |
| .size = MTDPART_SIZ_FULL, |
| }, |
| }; |
| |
| #include "sdram-micron-mt46h32m32lf-6.h" |
| |
| static struct omap2_hsmmc_info mmc[] = { |
| { |
| .mmc = 1, |
| .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA, |
| .gpio_wp = 29, |
| .deferred = true, |
| }, |
| {} /* Terminator */ |
| }; |
| |
| static struct regulator_consumer_supply touchbook_vmmc1_supply[] = { |
| REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"), |
| }; |
| |
| static struct regulator_consumer_supply touchbook_vsim_supply[] = { |
| REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"), |
| }; |
| |
| static struct gpio_led gpio_leds[]; |
| |
| static int touchbook_twl_gpio_setup(struct device *dev, |
| unsigned gpio, unsigned ngpio) |
| { |
| /* gpio + 0 is "mmc0_cd" (input/IRQ) */ |
| mmc[0].gpio_cd = gpio + 0; |
| omap_hsmmc_late_init(mmc); |
| |
| /* REVISIT: need ehci-omap hooks for external VBUS |
| * power switch and overcurrent detect |
| */ |
| gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"); |
| |
| /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */ |
| gpio_request_one(gpio + TWL4030_GPIO_MAX, GPIOF_OUT_INIT_LOW, |
| "nEN_USB_PWR"); |
| |
| /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */ |
| gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1; |
| |
| return 0; |
| } |
| |
| static struct twl4030_gpio_platform_data touchbook_gpio_data = { |
| .use_leds = true, |
| .pullups = BIT(1), |
| .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13) |
| | BIT(15) | BIT(16) | BIT(17), |
| .setup = touchbook_twl_gpio_setup, |
| }; |
| |
| static struct regulator_consumer_supply touchbook_vdac_supply[] = { |
| { |
| .supply = "vdac", |
| }, |
| }; |
| |
| static struct regulator_consumer_supply touchbook_vdvi_supply[] = { |
| { |
| .supply = "vdvi", |
| }, |
| }; |
| |
| /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */ |
| static struct regulator_init_data touchbook_vmmc1 = { |
| .constraints = { |
| .min_uV = 1850000, |
| .max_uV = 3150000, |
| .valid_modes_mask = REGULATOR_MODE_NORMAL |
| | REGULATOR_MODE_STANDBY, |
| .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
| | REGULATOR_CHANGE_MODE |
| | REGULATOR_CHANGE_STATUS, |
| }, |
| .num_consumer_supplies = ARRAY_SIZE(touchbook_vmmc1_supply), |
| .consumer_supplies = touchbook_vmmc1_supply, |
| }; |
| |
| /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */ |
| static struct regulator_init_data touchbook_vsim = { |
| .constraints = { |
| .min_uV = 1800000, |
| .max_uV = 3000000, |
| .valid_modes_mask = REGULATOR_MODE_NORMAL |
| | REGULATOR_MODE_STANDBY, |
| .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
| | REGULATOR_CHANGE_MODE |
| | REGULATOR_CHANGE_STATUS, |
| }, |
| .num_consumer_supplies = ARRAY_SIZE(touchbook_vsim_supply), |
| .consumer_supplies = touchbook_vsim_supply, |
| }; |
| |
| static struct twl4030_platform_data touchbook_twldata = { |
| /* platform_data for children goes here */ |
| .gpio = &touchbook_gpio_data, |
| .vmmc1 = &touchbook_vmmc1, |
| .vsim = &touchbook_vsim, |
| }; |
| |
| static struct i2c_board_info __initdata touchBook_i2c_boardinfo[] = { |
| { |
| I2C_BOARD_INFO("bq27200", 0x55), |
| }, |
| }; |
| |
| static int __init omap3_touchbook_i2c_init(void) |
| { |
| /* Standard TouchBook bus */ |
| omap3_pmic_get_config(&touchbook_twldata, |
| TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO, |
| TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2); |
| |
| touchbook_twldata.vdac->num_consumer_supplies = |
| ARRAY_SIZE(touchbook_vdac_supply); |
| touchbook_twldata.vdac->consumer_supplies = touchbook_vdac_supply; |
| |
| touchbook_twldata.vpll2->constraints.name = "VDVI"; |
| touchbook_twldata.vpll2->num_consumer_supplies = |
| ARRAY_SIZE(touchbook_vdvi_supply); |
| touchbook_twldata.vpll2->consumer_supplies = touchbook_vdvi_supply; |
| |
| omap3_pmic_init("twl4030", &touchbook_twldata); |
| /* Additional TouchBook bus */ |
| omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo, |
| ARRAY_SIZE(touchBook_i2c_boardinfo)); |
| |
| return 0; |
| } |
| |
| static struct ads7846_platform_data ads7846_pdata = { |
| .x_min = 100, |
| .y_min = 265, |
| .x_max = 3950, |
| .y_max = 3750, |
| .x_plate_ohms = 40, |
| .pressure_max = 255, |
| .debounce_max = 10, |
| .debounce_tol = 5, |
| .debounce_rep = 1, |
| .gpio_pendown = OMAP3_TS_GPIO, |
| .keep_vref_on = 1, |
| }; |
| |
| static struct gpio_led gpio_leds[] = { |
| { |
| .name = "touchbook::usr0", |
| .default_trigger = "heartbeat", |
| .gpio = 150, |
| }, |
| { |
| .name = "touchbook::usr1", |
| .default_trigger = "mmc0", |
| .gpio = 149, |
| }, |
| { |
| .name = "touchbook::pmu_stat", |
| .gpio = -EINVAL, /* gets replaced */ |
| .active_low = true, |
| }, |
| }; |
| |
| static struct gpio_led_platform_data gpio_led_info = { |
| .leds = gpio_leds, |
| .num_leds = ARRAY_SIZE(gpio_leds), |
| }; |
| |
| static struct platform_device leds_gpio = { |
| .name = "leds-gpio", |
| .id = -1, |
| .dev = { |
| .platform_data = &gpio_led_info, |
| }, |
| }; |
| |
| static struct gpio_keys_button gpio_buttons[] = { |
| { |
| .code = BTN_EXTRA, |
| .gpio = 7, |
| .desc = "user", |
| .wakeup = 1, |
| }, |
| { |
| .code = KEY_POWER, |
| .gpio = 183, |
| .desc = "power", |
| .wakeup = 1, |
| }, |
| }; |
| |
| static struct gpio_keys_platform_data gpio_key_info = { |
| .buttons = gpio_buttons, |
| .nbuttons = ARRAY_SIZE(gpio_buttons), |
| }; |
| |
| static struct platform_device keys_gpio = { |
| .name = "gpio-keys", |
| .id = -1, |
| .dev = { |
| .platform_data = &gpio_key_info, |
| }, |
| }; |
| |
| #ifdef CONFIG_OMAP_MUX |
| static struct omap_board_mux board_mux[] __initdata = { |
| { .reg_offset = OMAP_MUX_TERMINATOR }, |
| }; |
| #endif |
| |
| static struct platform_device *omap3_touchbook_devices[] __initdata = { |
| &leds_gpio, |
| &keys_gpio, |
| }; |
| |
| static const struct usbhs_omap_board_data usbhs_bdata __initconst = { |
| |
| .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, |
| .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, |
| .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED, |
| |
| .phy_reset = true, |
| .reset_gpio_port[0] = -EINVAL, |
| .reset_gpio_port[1] = 147, |
| .reset_gpio_port[2] = -EINVAL |
| }; |
| |
| static void omap3_touchbook_poweroff(void) |
| { |
| int pwr_off = TB_KILL_POWER_GPIO; |
| |
| if (gpio_request_one(pwr_off, GPIOF_OUT_INIT_LOW, "DVI reset") < 0) |
| printk(KERN_ERR "Unable to get kill power GPIO\n"); |
| } |
| |
| static int __init early_touchbook_revision(char *p) |
| { |
| if (!p) |
| return 0; |
| |
| return strict_strtoul(p, 10, &touchbook_revision); |
| } |
| early_param("tbr", early_touchbook_revision); |
| |
| static void __init omap3_touchbook_init(void) |
| { |
| omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); |
| |
| pm_power_off = omap3_touchbook_poweroff; |
| |
| if (system_rev >= 0x20 && system_rev <= 0x34301000) { |
| omap_mux_init_gpio(23, OMAP_PIN_INPUT); |
| mmc[0].gpio_wp = 23; |
| } else { |
| omap_mux_init_gpio(29, OMAP_PIN_INPUT); |
| } |
| omap_hsmmc_init(mmc); |
| |
| omap3_touchbook_i2c_init(); |
| platform_add_devices(omap3_touchbook_devices, |
| ARRAY_SIZE(omap3_touchbook_devices)); |
| omap_serial_init(); |
| omap_sdrc_init(mt46h32m32lf6_sdrc_params, |
| mt46h32m32lf6_sdrc_params); |
| |
| omap_mux_init_gpio(170, OMAP_PIN_INPUT); |
| /* REVISIT leave DVI powered down until it's needed ... */ |
| gpio_request_one(176, GPIOF_OUT_INIT_HIGH, "DVI_nPD"); |
| |
| /* Touchscreen and accelerometer */ |
| omap_ads7846_init(4, OMAP3_TS_GPIO, 310, &ads7846_pdata); |
| usb_musb_init(NULL); |
| usbhs_init(&usbhs_bdata); |
| board_nand_init(omap3touchbook_nand_partitions, |
| ARRAY_SIZE(omap3touchbook_nand_partitions), NAND_CS, |
| NAND_BUSWIDTH_16, NULL); |
| |
| /* Ensure SDRC pins are mux'd for self-refresh */ |
| omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT); |
| omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT); |
| } |
| |
| MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board") |
| /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */ |
| .atag_offset = 0x100, |
| .reserve = omap_reserve, |
| .map_io = omap3_map_io, |
| .init_early = omap3430_init_early, |
| .init_irq = omap3_init_irq, |
| .handle_irq = omap3_intc_handle_irq, |
| .init_machine = omap3_touchbook_init, |
| .init_late = omap3430_init_late, |
| .timer = &omap3_secure_timer, |
| .restart = omap_prcm_restart, |
| MACHINE_END |