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+/*
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+ * ALFA Network R36A board support
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+ *
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+ * Copyright (C) 2018 Piotr Dymacz <[email protected]>
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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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+
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+#include <linux/gpio.h>
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+#include <linux/platform_device.h>
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+
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+#include <asm/mach-ath79/ath79.h>
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+#include <asm/mach-ath79/ar71xx_regs.h>
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+
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+#include "common.h"
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+#include "dev-eth.h"
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+#include "dev-gpio-buttons.h"
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+#include "dev-leds-gpio.h"
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+#include "dev-m25p80.h"
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+#include "dev-usb.h"
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+#include "dev-wmac.h"
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+#include "machtypes.h"
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+
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+#define R36A_GPIO_LED_LAN 4
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+#define R36A_GPIO_LED_STATUS 14
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+#define R36A_GPIO_LED_USB 12
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+#define R36A_GPIO_LED_WAN 16
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+#define R36A_GPIO_LED_WLAN 15
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+
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+#define R36A_GPIO_WDT_EN 1
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+#define R36A_GPIO_WDT_IN 0
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+#define R36A_GPIO_USB_PWR 3
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+
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+#define R36A_GPIO_BTN_RESET 2
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+#define R36A_GPIO_BTN_RFKILL 17
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+
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+#define R36A_KEYS_POLL_INTERVAL 20
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+#define R36A_KEYS_DEBOUNCE_INTERVAL (3 * R36A_KEYS_POLL_INTERVAL)
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+
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+#define R36A_WMAC_CALDATA_OFFSET 0x1000
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+
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+static struct gpio_led r36a_leds_gpio[] __initdata = {
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+ {
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+ .name = "r36a:blue:lan",
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+ .gpio = R36A_GPIO_LED_LAN,
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+ .active_low = 1,
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+ }, {
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+ .name = "r36a:blue:status",
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+ .gpio = R36A_GPIO_LED_STATUS,
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+ .active_low = 1,
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+ }, {
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+ .name = "r36a:blue:usb",
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+ .gpio = R36A_GPIO_LED_USB,
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+ .active_low = 1,
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+ }, {
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+ .name = "r36a:blue:wan",
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+ .gpio = R36A_GPIO_LED_WAN,
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+ .active_low = 1,
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+ }, {
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+ .name = "r36a:blue:wlan",
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+ .gpio = R36A_GPIO_LED_WLAN,
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+ .active_low = 1,
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+ },
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+};
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+
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+static struct gpio_keys_button r36a_gpio_keys[] __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 = R36A_KEYS_DEBOUNCE_INTERVAL,
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+ .gpio = R36A_GPIO_BTN_RESET,
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+ .active_low = 1,
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+ }, {
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+ .desc = "rfkill",
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+ .type = EV_KEY,
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+ .code = KEY_RFKILL,
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+ .debounce_interval = R36A_KEYS_DEBOUNCE_INTERVAL,
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+ .gpio = R36A_GPIO_BTN_RFKILL,
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+ .active_low = 1,
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+ },
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+};
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+
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+static void __init r36a_setup(void)
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+{
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+ u8 *art = (u8 *) KSEG1ADDR(0x1f070000);
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+
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+ ath79_register_m25p80(NULL);
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+
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+ ath79_setup_ar933x_phy4_switch(false, false);
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+
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+ ath79_register_mdio(0, 0x0);
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+
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+ ath79_switch_data.phy4_mii_en = 1;
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+ ath79_switch_data.phy_poll_mask = 0xf7;
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+
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+ /* LAN */
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+ ath79_eth0_data.duplex = DUPLEX_FULL;
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+ ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
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+ ath79_eth0_data.phy_mask = BIT(4);
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+ ath79_eth0_data.speed = SPEED_100;
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+ ath79_init_mac(ath79_eth0_data.mac_addr, art, 0);
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+ ath79_register_eth(0);
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+
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+ /* WAN */
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+ ath79_eth1_data.duplex = DUPLEX_FULL;
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+ ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
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+ ath79_init_mac(ath79_eth1_data.mac_addr, art, 1);
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+ ath79_register_eth(1);
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+
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+ /* Disable JTAG (enables GPIO0-3) */
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+ ath79_gpio_function_enable(AR934X_GPIO_FUNC_JTAG_DISABLE);
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+
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+ ath79_register_leds_gpio(-1, ARRAY_SIZE(r36a_leds_gpio),
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+ r36a_leds_gpio);
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+
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+ ath79_register_gpio_keys_polled(-1, R36A_KEYS_POLL_INTERVAL,
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+ ARRAY_SIZE(r36a_gpio_keys),
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+ r36a_gpio_keys);
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+
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+ gpio_request_one(R36A_GPIO_WDT_IN,
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+ GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
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+ "WDT input");
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+
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+ gpio_request_one(R36A_GPIO_WDT_EN,
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+ GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
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+ "WDT enable");
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+
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+ gpio_request_one(R36A_GPIO_USB_PWR,
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+ GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
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+ "USB power");
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+
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+ ath79_register_wmac(art + R36A_WMAC_CALDATA_OFFSET, NULL);
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+
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+ ath79_register_usb();
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+}
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+
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+MIPS_MACHINE(ATH79_MACH_R36A, "R36A", "ALFA Network R36A", r36a_setup);
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Piotr Dymacz