diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-omap3touchbook.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-omap3touchbook.c | 572 |
1 files changed, 572 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 000000000000..fe3d22cb2457 --- /dev/null +++ b/arch/arm/mach-omap2/board-omap3touchbook.c @@ -0,0 +1,572 @@ +/* + * 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 <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 <plat/board.h> +#include <plat/common.h> +#include <plat/gpmc.h> +#include <plat/nand.h> +#include <plat/usb.h> +#include <plat/timer-gp.h> + +#include "mux.h" +#include "mmc-twl4030.h" + +#include <asm/setup.h> + +#define GPMC_CS0_BASE 0x60 +#define GPMC_CS_SIZE 0x30 + +#define NAND_BLOCK_SIZE SZ_128K + +#define OMAP3_AC_GPIO 136 +#define OMAP3_TS_GPIO 162 +#define TB_BL_PWM_TIMER 9 +#define TB_KILL_POWER_GPIO 168 + +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, + }, +}; + +static struct omap_nand_platform_data omap3touchbook_nand_data = { + .options = NAND_BUSWIDTH_16, + .parts = omap3touchbook_nand_partitions, + .nr_parts = ARRAY_SIZE(omap3touchbook_nand_partitions), + .dma_channel = -1, /* disable DMA in OMAP NAND driver */ + .nand_setup = NULL, + .dev_ready = NULL, +}; + +static struct resource omap3touchbook_nand_resource = { + .flags = IORESOURCE_MEM, +}; + +static struct platform_device omap3touchbook_nand_device = { + .name = "omap2-nand", + .id = -1, + .dev = { + .platform_data = &omap3touchbook_nand_data, + }, + .num_resources = 1, + .resource = &omap3touchbook_nand_resource, +}; + +#include "sdram-micron-mt46h32m32lf-6.h" + +static struct twl4030_hsmmc_info mmc[] = { + { + .mmc = 1, + .wires = 8, + .gpio_wp = 29, + }, + {} /* Terminator */ +}; + +static struct platform_device omap3_touchbook_lcd_device = { + .name = "omap3touchbook_lcd", + .id = -1, +}; + +static struct omap_lcd_config omap3_touchbook_lcd_config __initdata = { + .ctrl_name = "internal", +}; + +static struct regulator_consumer_supply touchbook_vmmc1_supply = { + .supply = "vmmc", +}; + +static struct regulator_consumer_supply touchbook_vsim_supply = { + .supply = "vmmc_aux", +}; + +static struct gpio_led gpio_leds[]; + +static int touchbook_twl_gpio_setup(struct device *dev, + unsigned gpio, unsigned ngpio) +{ + 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); + } + /* gpio + 0 is "mmc0_cd" (input/IRQ) */ + mmc[0].gpio_cd = gpio + 0; + twl4030_mmc_init(mmc); + + /* link regulators to MMC adapters */ + touchbook_vmmc1_supply.dev = mmc[0].dev; + touchbook_vsim_supply.dev = mmc[0].dev; + + /* REVISIT: need ehci-omap hooks for external VBUS + * power switch and overcurrent detect + */ + + gpio_request(gpio + 1, "EHCI_nOC"); + gpio_direction_input(gpio + 1); + + /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */ + gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR"); + gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0); + + /* 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", + .dev = &omap3_touchbook_lcd_device.dev, +}; + +static struct regulator_consumer_supply touchbook_vdvi_supply = { + .supply = "vdvi", + .dev = &omap3_touchbook_lcd_device.dev, +}; + +/* 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 = 1, + .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 = 1, + .consumer_supplies = &touchbook_vsim_supply, +}; + +/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */ +static struct regulator_init_data touchbook_vdac = { + .constraints = { + .min_uV = 1800000, + .max_uV = 1800000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &touchbook_vdac_supply, +}; + +/* VPLL2 for digital video outputs */ +static struct regulator_init_data touchbook_vpll2 = { + .constraints = { + .name = "VDVI", + .min_uV = 1800000, + .max_uV = 1800000, + .valid_modes_mask = REGULATOR_MODE_NORMAL + | REGULATOR_MODE_STANDBY, + .valid_ops_mask = REGULATOR_CHANGE_MODE + | REGULATOR_CHANGE_STATUS, + }, + .num_consumer_supplies = 1, + .consumer_supplies = &touchbook_vdvi_supply, +}; + +static struct twl4030_usb_data touchbook_usb_data = { + .usb_mode = T2_USB_MODE_ULPI, +}; + +static struct twl4030_codec_audio_data touchbook_audio_data = { + .audio_mclk = 26000000, +}; + +static struct twl4030_codec_data touchbook_codec_data = { + .audio_mclk = 26000000, + .audio = &touchbook_audio_data, +}; + +static struct twl4030_platform_data touchbook_twldata = { + .irq_base = TWL4030_IRQ_BASE, + .irq_end = TWL4030_IRQ_END, + + /* platform_data for children goes here */ + .usb = &touchbook_usb_data, + .gpio = &touchbook_gpio_data, + .codec = &touchbook_codec_data, + .vmmc1 = &touchbook_vmmc1, + .vsim = &touchbook_vsim, + .vdac = &touchbook_vdac, + .vpll2 = &touchbook_vpll2, +}; + +static struct i2c_board_info __initdata touchbook_i2c_boardinfo[] = { + { + I2C_BOARD_INFO("twl4030", 0x48), + .flags = I2C_CLIENT_WAKE, + .irq = INT_34XX_SYS_NIRQ, + .platform_data = &touchbook_twldata, + }, +}; + +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 */ + omap_register_i2c_bus(1, 2600, touchbook_i2c_boardinfo, + ARRAY_SIZE(touchbook_i2c_boardinfo)); + + /* Additional TouchBook bus */ + omap_register_i2c_bus(3, 100, touchBook_i2c_boardinfo, + ARRAY_SIZE(touchBook_i2c_boardinfo)); + + return 0; +} + +static void __init omap3_ads7846_init(void) +{ + if (gpio_request(OMAP3_TS_GPIO, "ads7846_pen_down")) { + printk(KERN_ERR "Failed to request GPIO %d for " + "ads7846 pen down IRQ\n", OMAP3_TS_GPIO); + return; + } + + gpio_direction_input(OMAP3_TS_GPIO); + omap_set_gpio_debounce(OMAP3_TS_GPIO, 1); + omap_set_gpio_debounce_time(OMAP3_TS_GPIO, 0xa); +} + +static struct ads7846_platform_data ads7846_config = { + .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 omap2_mcspi_device_config ads7846_mcspi_config = { + .turbo_mode = 0, + .single_channel = 1, /* 0: slave, 1: master */ +}; + +static struct spi_board_info omap3_ads7846_spi_board_info[] __initdata = { + { + .modalias = "ads7846", + .bus_num = 4, + .chip_select = 0, + .max_speed_hz = 1500000, + .controller_data = &ads7846_mcspi_config, + .irq = OMAP_GPIO_IRQ(OMAP3_TS_GPIO), + .platform_data = &ads7846_config, + } +}; + +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, + }, +}; + +static struct omap_board_config_kernel omap3_touchbook_config[] __initdata = { + { OMAP_TAG_LCD, &omap3_touchbook_lcd_config }, +}; + +#ifdef CONFIG_OMAP_MUX +static struct omap_board_mux board_mux[] __initdata = { + { .reg_offset = OMAP_MUX_TERMINATOR }, +}; +#else +#define board_mux NULL +#endif + +static void __init omap3_touchbook_init_irq(void) +{ + omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); + omap_board_config = omap3_touchbook_config; + omap_board_config_size = ARRAY_SIZE(omap3_touchbook_config); + omap2_init_common_hw(mt46h32m32lf6_sdrc_params, + mt46h32m32lf6_sdrc_params); + omap_init_irq(); +#ifdef CONFIG_OMAP_32K_TIMER + omap2_gp_clockevent_set_gptimer(12); +#endif + omap_gpio_init(); +} + +static struct platform_device *omap3_touchbook_devices[] __initdata = { + &omap3_touchbook_lcd_device, + &leds_gpio, + &keys_gpio, +}; + +static void __init omap3touchbook_flash_init(void) +{ + u8 cs = 0; + u8 nandcs = GPMC_CS_NUM + 1; + + u32 gpmc_base_add = OMAP34XX_GPMC_VIRT; + + /* find out the chip-select on which NAND exists */ + while (cs < GPMC_CS_NUM) { + u32 ret = 0; + ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1); + + if ((ret & 0xC00) == 0x800) { + printk(KERN_INFO "Found NAND on CS%d\n", cs); + if (nandcs > GPMC_CS_NUM) + nandcs = cs; + } + cs++; + } + + if (nandcs > GPMC_CS_NUM) { + printk(KERN_INFO "NAND: Unable to find configuration " + "in GPMC\n "); + return; + } + + if (nandcs < GPMC_CS_NUM) { + omap3touchbook_nand_data.cs = nandcs; + omap3touchbook_nand_data.gpmc_cs_baseaddr = (void *) + (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE); + omap3touchbook_nand_data.gpmc_baseaddr = + (void *) (gpmc_base_add); + + printk(KERN_INFO "Registering NAND on CS%d\n", nandcs); + if (platform_device_register(&omap3touchbook_nand_device) < 0) + printk(KERN_ERR "Unable to register NAND device\n"); + } +} + +static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = { + + .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY, + .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY, + .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN, + + .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 r; + + r = gpio_request(TB_KILL_POWER_GPIO, "DVI reset"); + if (r < 0) { + printk(KERN_ERR "Unable to get kill power GPIO\n"); + return; + } + + gpio_direction_output(TB_KILL_POWER_GPIO, 0); +} + +static void __init early_touchbook_revision(char **p) +{ + if (!*p) + return; + + strict_strtoul(*p, 10, &touchbook_revision); +} +__early_param("tbr=", early_touchbook_revision); + +static void __init omap3_touchbook_init(void) +{ + pm_power_off = omap3_touchbook_poweroff; + + omap3_touchbook_i2c_init(); + platform_add_devices(omap3_touchbook_devices, + ARRAY_SIZE(omap3_touchbook_devices)); + omap_serial_init(); + + omap_mux_init_gpio(170, OMAP_PIN_INPUT); + gpio_request(176, "DVI_nPD"); + /* REVISIT leave DVI powered down until it's needed ... */ + gpio_direction_output(176, true); + + /* Touchscreen and accelerometer */ + spi_register_board_info(omap3_ads7846_spi_board_info, + ARRAY_SIZE(omap3_ads7846_spi_board_info)); + omap3_ads7846_init(); + usb_musb_init(); + usb_ehci_init(&ehci_pdata); + omap3touchbook_flash_init(); + + /* 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); +} + +static void __init omap3_touchbook_map_io(void) +{ + omap2_set_globals_343x(); + omap2_map_common_io(); +} + +MACHINE_START(TOUCHBOOK, "OMAP3 touchbook Board") + /* Maintainer: Gregoire Gentil - http://www.alwaysinnovating.com */ + .phys_io = 0x48000000, + .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, + .boot_params = 0x80000100, + .map_io = omap3_touchbook_map_io, + .init_irq = omap3_touchbook_init_irq, + .init_machine = omap3_touchbook_init, + .timer = &omap_timer, +MACHINE_END |