/* * Atheros PB44 reference board support * * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org> * * 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/init.h> #include <linux/platform_device.h> #include <linux/i2c.h> #include <linux/i2c-gpio.h> #include <linux/i2c/pcf857x.h> #include "machtypes.h" #include "dev-gpio-buttons.h" #include "dev-leds-gpio.h" #include "dev-spi.h" #include "dev-usb.h" #include "pci.h" #define PB44_GPIO_I2C_SCL 0 #define PB44_GPIO_I2C_SDA 1 #define PB44_GPIO_EXP_BASE 16 #define PB44_GPIO_SW_RESET (PB44_GPIO_EXP_BASE + 6) #define PB44_GPIO_SW_JUMP (PB44_GPIO_EXP_BASE + 8) #define PB44_GPIO_LED_JUMP1 (PB44_GPIO_EXP_BASE + 9) #define PB44_GPIO_LED_JUMP2 (PB44_GPIO_EXP_BASE + 10) #define PB44_KEYS_POLL_INTERVAL 20 /* msecs */ #define PB44_KEYS_DEBOUNCE_INTERVAL (3 * PB44_KEYS_POLL_INTERVAL) static struct i2c_gpio_platform_data pb44_i2c_gpio_data = { .sda_pin = PB44_GPIO_I2C_SDA, .scl_pin = PB44_GPIO_I2C_SCL, }; static struct platform_device pb44_i2c_gpio_device = { .name = "i2c-gpio", .id = 0, .dev = { .platform_data = &pb44_i2c_gpio_data, } }; static struct pcf857x_platform_data pb44_pcf857x_data = { .gpio_base = PB44_GPIO_EXP_BASE, }; static struct i2c_board_info pb44_i2c_board_info[] __initdata = { { I2C_BOARD_INFO("pcf8575", 0x20), .platform_data = &pb44_pcf857x_data, }, }; static struct gpio_led pb44_leds_gpio[] __initdata = { { .name = "pb44:amber:jump1", .gpio = PB44_GPIO_LED_JUMP1, .active_low = 1, }, { .name = "pb44:green:jump2", .gpio = PB44_GPIO_LED_JUMP2, .active_low = 1, }, }; static struct gpio_keys_button pb44_gpio_keys[] __initdata = { { .desc = "soft_reset", .type = EV_KEY, .code = KEY_RESTART, .debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL, .gpio = PB44_GPIO_SW_RESET, .active_low = 1, } , { .desc = "jumpstart", .type = EV_KEY, .code = KEY_WPS_BUTTON, .debounce_interval = PB44_KEYS_DEBOUNCE_INTERVAL, .gpio = PB44_GPIO_SW_JUMP, .active_low = 1, } }; static struct spi_board_info pb44_spi_info[] = { { .bus_num = 0, .chip_select = 0, .max_speed_hz = 25000000, .modalias = "m25p64", }, }; static struct ath79_spi_platform_data pb44_spi_data = { .bus_num = 0, .num_chipselect = 1, }; static void __init pb44_init(void) { i2c_register_board_info(0, pb44_i2c_board_info, ARRAY_SIZE(pb44_i2c_board_info)); platform_device_register(&pb44_i2c_gpio_device); ath79_register_leds_gpio(-1, ARRAY_SIZE(pb44_leds_gpio), pb44_leds_gpio); ath79_register_gpio_keys_polled(-1, PB44_KEYS_POLL_INTERVAL, ARRAY_SIZE(pb44_gpio_keys), pb44_gpio_keys); ath79_register_spi(&pb44_spi_data, pb44_spi_info, ARRAY_SIZE(pb44_spi_info)); ath79_register_usb(); ath79_register_pci(); } MIPS_MACHINE(ATH79_MACH_PB44, "PB44", "Atheros PB44 reference board", pb44_init);