/* * 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 "hsmmc.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 omap2_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; omap2_hsmmc_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 struct omap_musb_board_data musb_board_data = { .interface_type = MUSB_INTERFACE_ULPI, .mode = MUSB_OTG, .power = 100, }; 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(&musb_board_data); 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(); omap34xx_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