157 lines
3.9 KiB
C
157 lines
3.9 KiB
C
/*
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* Omnima EMB HPM board support
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*
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* Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/ethtool.h>
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#include <linux/gpio.h>
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#include <linux/rt2x00_platform.h>
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#include <linux/spi/spi.h>
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#include <asm/mach-ralink/machine.h>
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#include <asm/mach-ralink/dev-gpio-buttons.h>
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#include <asm/mach-ralink/dev-gpio-leds.h>
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#include <asm/mach-ralink/rt3883.h>
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#include <asm/mach-ralink/rt3883_regs.h>
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#include <asm/mach-ralink/ramips_eth_platform.h>
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#include "devices.h"
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#define OMNI_EMB_HPM_GPIO_LED_POWER 7
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#define OMNI_EMB_HPM_GPIO_LED_ETH_GREEN 20
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#define OMNI_EMB_HPM_GPIO_LED_ETH_RED 18
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#define OMNI_EMB_HPM_GPIO_LED_STATUS 21
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#define OMNI_EMB_HPM_GPIO_LED_WIFI_GREEN 17
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#define OMNI_EMB_HPM_GPIO_LED_WIFI_RED 19
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#define OMNI_EMB_HPM_GPIO_BUTTON_RESET 14
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#define OMNI_EMB_HPM_GPIO_USB0_ENABLE 2
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#define OMNI_EMB_HPM_GPIO_USB1_ENABLE 1
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#define OMNI_EMB_HPM_GPIO_USB0_OC 12
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#define OMNI_EMB_HPM_GPIO_USB1_OC 13
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#define OMNI_EMB_HPM_KEYS_POLL_INTERVAL 20
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#define OMNI_EMB_HPM_KEYS_DEBOUNCE_INTERVAL (3 * OMNI_EMB_HPM_KEYS_POLL_INTERVAL)
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static struct gpio_led omni_emb_hpm_leds_gpio[] __initdata = {
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{
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.name = "emb:orange:power",
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.gpio = OMNI_EMB_HPM_GPIO_LED_POWER,
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.active_low = 1,
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},
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{
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.name = "emb:green:status",
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.gpio = OMNI_EMB_HPM_GPIO_LED_STATUS,
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},
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{
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.name = "emb:green:eth",
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.gpio = OMNI_EMB_HPM_GPIO_LED_ETH_GREEN,
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.active_low = 1,
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},
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{
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.name = "emb:red:eth",
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.gpio = OMNI_EMB_HPM_GPIO_LED_ETH_RED,
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.active_low = 1,
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},
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{
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.name = "emb:green:wifi",
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.gpio = OMNI_EMB_HPM_GPIO_LED_WIFI_GREEN,
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.active_low = 1,
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},
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{
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.name = "emb:red:wifi",
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.gpio = OMNI_EMB_HPM_GPIO_LED_WIFI_RED,
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.active_low = 1,
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},
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};
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static struct gpio_keys_button omni_emb_hpm_gpio_buttons[] __initdata = {
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{
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.desc = "reset",
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.type = EV_KEY,
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.code = KEY_RESTART,
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.debounce_interval = OMNI_EMB_HPM_KEYS_DEBOUNCE_INTERVAL,
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.gpio = OMNI_EMB_HPM_GPIO_BUTTON_RESET,
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.active_low = 1,
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},
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};
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static struct spi_board_info omni_emb_hpm_spi_info[] = {
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{
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.bus_num = 0,
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.chip_select = 0,
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.max_speed_hz = 25000000,
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.modalias = "m25p80",
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}
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};
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static void __init omni_emb_hpm_gpio_request(unsigned int gpio,
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unsigned long flags,
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const char *label,
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bool free)
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{
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int err;
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err = gpio_request_one(gpio, flags, label);
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if (err) {
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pr_err("EMB_HPM: can't setup GPIO%u (%s), err=%d\n",
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gpio, label, err);
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return;
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}
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if (free)
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gpio_free(gpio);
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}
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static void __init omni_emb_hpm_gpio_init(void)
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{
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rt3883_gpio_init(RT3883_GPIO_MODE_I2C |
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RT3883_GPIO_MODE_UART0(RT3883_GPIO_MODE_GPIO) |
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RT3883_GPIO_MODE_JTAG);
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omni_emb_hpm_gpio_request(OMNI_EMB_HPM_GPIO_USB0_ENABLE,
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GPIOF_OUT_INIT_HIGH,
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"USB0 power", true);
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omni_emb_hpm_gpio_request(OMNI_EMB_HPM_GPIO_USB1_ENABLE,
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GPIOF_OUT_INIT_HIGH,
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"USB1 power", true);
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omni_emb_hpm_gpio_request(OMNI_EMB_HPM_GPIO_USB0_OC,
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GPIOF_IN, "USB0 OC", false);
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omni_emb_hpm_gpio_request(OMNI_EMB_HPM_GPIO_USB1_OC,
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GPIOF_IN, "USB1 OC", false);
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}
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static void __init omni_emb_hpm_init(void)
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{
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omni_emb_hpm_gpio_init();
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ramips_register_gpio_leds(-1, ARRAY_SIZE(omni_emb_hpm_leds_gpio),
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omni_emb_hpm_leds_gpio);
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ramips_register_gpio_buttons(-1, OMNI_EMB_HPM_KEYS_POLL_INTERVAL,
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ARRAY_SIZE(omni_emb_hpm_gpio_buttons),
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omni_emb_hpm_gpio_buttons);
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rt3883_register_spi(omni_emb_hpm_spi_info,
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ARRAY_SIZE(omni_emb_hpm_spi_info));
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rt3883_register_wlan();
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rt3883_eth_data.phy_mask = BIT(4);
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rt3883_register_ethernet();
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rt3883_register_wdt(false);
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rt3883_register_usbhost();
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}
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MIPS_MACHINE(RAMIPS_MACH_OMNI_EMB_HPM, "OMNI-EMB-HPM", "Omnima EMB HPM",
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omni_emb_hpm_init);
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