diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-omap3touchbook.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-omap3touchbook.c | 392 |
1 files changed, 392 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-omap3touchbook.c b/arch/arm/mach-omap2/board-omap3touchbook.c new file mode 100644 index 00000000..ae2251fa --- /dev/null +++ b/arch/arm/mach-omap2/board-omap3touchbook.c @@ -0,0 +1,392 @@ +/* + * 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 <plat/mcspi.h> +#include <linux/spi/spi.h> + +#include <linux/spi/ads7846.h> + +#include <linux/regulator/machine.h> +#include <linux/i2c/twl.h> + +#include <mach/hardware.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 <plat/board.h> +#include "common.h" +#include <plat/gpmc.h> +#include <plat/nand.h> +#include <plat/usb.h> + +#include "mux.h" +#include "hsmmc.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 + +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 = { + .gpio_base = OMAP_MAX_GPIO_LINES, + .irq_base = TWL4030_GPIO_IRQ_BASE, + .irq_end = TWL4030_GPIO_IRQ_END, + .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); + omap_nand_flash_init(NAND_BUSWIDTH_16, omap3touchbook_nand_partitions, + ARRAY_SIZE(omap3touchbook_nand_partitions)); + + /* 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, + .timer = &omap3_secure_timer, + .restart = omap_prcm_restart, +MACHINE_END |