/* * linux/arch/arm/mach-omap2/board-ldp.c * * Copyright (C) 2008 Texas Instruments Inc. * Nishant Kamat <nskamat@ti.com> * * Modified from mach-omap2/board-3430sdp.c * * 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/input.h> #include <linux/gpio_keys.h> #include <linux/workqueue.h> #include <linux/err.h> #include <linux/clk.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> #include <linux/regulator/machine.h> #include <linux/i2c/twl4030.h> #include <linux/io.h> #include <linux/smsc911x.h> #include <mach/hardware.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <mach/mcspi.h> #include <mach/gpio.h> #include <mach/board.h> #include <mach/common.h> #include <mach/gpmc.h> #include <asm/delay.h> #include <mach/control.h> #include <mach/usb.h> #include <mach/keypad.h> #include "mmc-twl4030.h" #define LDP_SMSC911X_CS 1 #define LDP_SMSC911X_GPIO 152 #define DEBUG_BASE 0x08000000 #define LDP_ETHR_START DEBUG_BASE static struct resource ldp_smsc911x_resources[] = { [0] = { .start = LDP_ETHR_START, .end = LDP_ETHR_START + SZ_4K, .flags = IORESOURCE_MEM, }, [1] = { .start = 0, .end = 0, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, }, }; static struct smsc911x_platform_config ldp_smsc911x_config = { .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW, .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN, .flags = SMSC911X_USE_32BIT, .phy_interface = PHY_INTERFACE_MODE_MII, }; static struct platform_device ldp_smsc911x_device = { .name = "smsc911x", .id = -1, .num_resources = ARRAY_SIZE(ldp_smsc911x_resources), .resource = ldp_smsc911x_resources, .dev = { .platform_data = &ldp_smsc911x_config, }, }; static int ldp_twl4030_keymap[] = { KEY(0, 0, KEY_1), KEY(1, 0, KEY_2), KEY(2, 0, KEY_3), KEY(0, 1, KEY_4), KEY(1, 1, KEY_5), KEY(2, 1, KEY_6), KEY(3, 1, KEY_F5), KEY(0, 2, KEY_7), KEY(1, 2, KEY_8), KEY(2, 2, KEY_9), KEY(3, 2, KEY_F6), KEY(0, 3, KEY_F7), KEY(1, 3, KEY_0), KEY(2, 3, KEY_F8), PERSISTENT_KEY(4, 5), KEY(4, 4, KEY_VOLUMEUP), KEY(5, 5, KEY_VOLUMEDOWN), 0 }; static struct twl4030_keypad_data ldp_kp_twl4030_data = { .rows = 6, .cols = 6, .keymap = ldp_twl4030_keymap, .keymapsize = ARRAY_SIZE(ldp_twl4030_keymap), .rep = 1, }; static struct gpio_keys_button ldp_gpio_keys_buttons[] = { [0] = { .code = KEY_ENTER, .gpio = 101, .desc = "enter sw", .active_low = 1, .debounce_interval = 30, }, [1] = { .code = KEY_F1, .gpio = 102, .desc = "func 1", .active_low = 1, .debounce_interval = 30, }, [2] = { .code = KEY_F2, .gpio = 103, .desc = "func 2", .active_low = 1, .debounce_interval = 30, }, [3] = { .code = KEY_F3, .gpio = 104, .desc = "func 3", .active_low = 1, .debounce_interval = 30, }, [4] = { .code = KEY_F4, .gpio = 105, .desc = "func 4", .active_low = 1, .debounce_interval = 30, }, [5] = { .code = KEY_LEFT, .gpio = 106, .desc = "left sw", .active_low = 1, .debounce_interval = 30, }, [6] = { .code = KEY_RIGHT, .gpio = 107, .desc = "right sw", .active_low = 1, .debounce_interval = 30, }, [7] = { .code = KEY_UP, .gpio = 108, .desc = "up sw", .active_low = 1, .debounce_interval = 30, }, [8] = { .code = KEY_DOWN, .gpio = 109, .desc = "down sw", .active_low = 1, .debounce_interval = 30, }, }; static struct gpio_keys_platform_data ldp_gpio_keys = { .buttons = ldp_gpio_keys_buttons, .nbuttons = ARRAY_SIZE(ldp_gpio_keys_buttons), .rep = 1, }; static struct platform_device ldp_gpio_keys_device = { .name = "gpio-keys", .id = -1, .dev = { .platform_data = &ldp_gpio_keys, }, }; static int ts_gpio; /** * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq * * @return - void. If request gpio fails then Flag KERN_ERR. */ static void ads7846_dev_init(void) { if (gpio_request(ts_gpio, "ads7846 irq") < 0) { printk(KERN_ERR "can't get ads746 pen down GPIO\n"); return; } gpio_direction_input(ts_gpio); omap_set_gpio_debounce(ts_gpio, 1); omap_set_gpio_debounce_time(ts_gpio, 0xa); } static int ads7846_get_pendown_state(void) { return !gpio_get_value(ts_gpio); } static struct ads7846_platform_data tsc2046_config __initdata = { .get_pendown_state = ads7846_get_pendown_state, .keep_vref_on = 1, }; static struct omap2_mcspi_device_config tsc2046_mcspi_config = { .turbo_mode = 0, .single_channel = 1, /* 0: slave, 1: master */ }; static struct spi_board_info ldp_spi_board_info[] __initdata = { [0] = { /* * TSC2046 operates at a max freqency of 2MHz, so * operate slightly below at 1.5MHz */ .modalias = "ads7846", .bus_num = 1, .chip_select = 0, .max_speed_hz = 1500000, .controller_data = &tsc2046_mcspi_config, .irq = 0, .platform_data = &tsc2046_config, }, }; static inline void __init ldp_init_smsc911x(void) { int eth_cs; unsigned long cs_mem_base; int eth_gpio = 0; eth_cs = LDP_SMSC911X_CS; if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) { printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n"); return; } ldp_smsc911x_resources[0].start = cs_mem_base + 0x0; ldp_smsc911x_resources[0].end = cs_mem_base + 0xff; udelay(100); eth_gpio = LDP_SMSC911X_GPIO; ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio); if (gpio_request(eth_gpio, "smsc911x irq") < 0) { printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n", eth_gpio); return; } gpio_direction_input(eth_gpio); } static void __init omap_ldp_init_irq(void) { omap2_init_common_hw(NULL, NULL); omap_init_irq(); omap_gpio_init(); ldp_init_smsc911x(); } static struct omap_uart_config ldp_uart_config __initdata = { .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)), }; static struct platform_device ldp_lcd_device = { .name = "ldp_lcd", .id = -1, }; static struct omap_lcd_config ldp_lcd_config __initdata = { .ctrl_name = "internal", }; static struct omap_board_config_kernel ldp_config[] __initdata = { { OMAP_TAG_UART, &ldp_uart_config }, { OMAP_TAG_LCD, &ldp_lcd_config }, }; static struct twl4030_usb_data ldp_usb_data = { .usb_mode = T2_USB_MODE_ULPI, }; static struct twl4030_gpio_platform_data ldp_gpio_data = { .gpio_base = OMAP_MAX_GPIO_LINES, .irq_base = TWL4030_GPIO_IRQ_BASE, .irq_end = TWL4030_GPIO_IRQ_END, }; static struct twl4030_madc_platform_data ldp_madc_data = { .irq_line = 1, }; static struct regulator_consumer_supply ldp_vmmc1_supply = { .supply = "vmmc", }; /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */ static struct regulator_init_data ldp_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 = &ldp_vmmc1_supply, }; static struct twl4030_platform_data ldp_twldata = { .irq_base = TWL4030_IRQ_BASE, .irq_end = TWL4030_IRQ_END, /* platform_data for children goes here */ .madc = &ldp_madc_data, .usb = &ldp_usb_data, .vmmc1 = &ldp_vmmc1, .gpio = &ldp_gpio_data, .keypad = &ldp_kp_twl4030_data, }; static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = { { I2C_BOARD_INFO("twl4030", 0x48), .flags = I2C_CLIENT_WAKE, .irq = INT_34XX_SYS_NIRQ, .platform_data = &ldp_twldata, }, }; static int __init omap_i2c_init(void) { omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo, ARRAY_SIZE(ldp_i2c_boardinfo)); omap_register_i2c_bus(2, 400, NULL, 0); omap_register_i2c_bus(3, 400, NULL, 0); return 0; } static struct twl4030_hsmmc_info mmc[] __initdata = { { .mmc = 1, .wires = 4, .gpio_cd = -EINVAL, .gpio_wp = -EINVAL, }, {} /* Terminator */ }; static struct platform_device *ldp_devices[] __initdata = { &ldp_smsc911x_device, &ldp_lcd_device, &ldp_gpio_keys_device, }; static void __init omap_ldp_init(void) { omap_i2c_init(); platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices)); omap_board_config = ldp_config; omap_board_config_size = ARRAY_SIZE(ldp_config); ts_gpio = 54; ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio); spi_register_board_info(ldp_spi_board_info, ARRAY_SIZE(ldp_spi_board_info)); ads7846_dev_init(); omap_serial_init(); usb_musb_init(); twl4030_mmc_init(mmc); /* link regulators to MMC adapters */ ldp_vmmc1_supply.dev = mmc[0].dev; } static void __init omap_ldp_map_io(void) { omap2_set_globals_343x(); omap2_map_common_io(); } MACHINE_START(OMAP_LDP, "OMAP LDP board") .phys_io = 0x48000000, .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, .boot_params = 0x80000100, .map_io = omap_ldp_map_io, .init_irq = omap_ldp_init_irq, .init_machine = omap_ldp_init, .timer = &omap_timer, MACHINE_END