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/*
 *  TP-LINK TL-WR741ND v4/TL-MR3220 v2 board support
 *
 *  Copyright (C) 2011-2012 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/gpio.h>

#include <asm/mach-ath79/ath79.h>
#include <asm/mach-ath79/ar71xx_regs.h>

#include "common.h"
#include "dev-eth.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-m25p80.h"
#include "dev-usb.h"
#include "dev-wmac.h"
#include "machtypes.h"

#define TL_WR741NDV4_GPIO_BTN_RESET     11
#define TL_WR741NDV4_GPIO_BTN_WPS       26

#define TL_WR741NDV4_GPIO_LED_WLAN      0
#define TL_WR741NDV4_GPIO_LED_QSS       1
#define TL_WR741NDV4_GPIO_LED_WAN       13
#define TL_WR741NDV4_GPIO_LED_LAN1      14
#define TL_WR741NDV4_GPIO_LED_LAN2      15
#define TL_WR741NDV4_GPIO_LED_LAN3      16
#define TL_WR741NDV4_GPIO_LED_LAN4      17
#define TL_WR741NDV4_GPIO_LED_SYSTEM    27

#define TL_MR3220V2_GPIO_BTN_WPS        11
#define TL_MR3220V2_GPIO_BTN_WIFI       24

#define TL_MR3220V2_GPIO_LED_3G         26
#define TL_MR3220V2_GPIO_USB_POWER      8

#define TL_WR741NDV4_KEYS_POLL_INTERVAL 20      /* msecs */
#define TL_WR741NDV4_KEYS_DEBOUNCE_INTERVAL (3 * TL_WR741NDV4_KEYS_POLL_INTERVAL)

static const char *tl_wr741ndv4_part_probes[] = {
        "tp-link",
        NULL,
};

static struct flash_platform_data tl_wr741ndv4_flash_data = {
        .part_probes    = tl_wr741ndv4_part_probes,
};

static struct gpio_led tl_wr741ndv4_leds_gpio[] __initdata = {
        {
                .name           = "tp-link:green:lan1",
                .gpio           = TL_WR741NDV4_GPIO_LED_LAN1,
                .active_low     = 0,
        }, {
                .name           = "tp-link:green:lan2",
                .gpio           = TL_WR741NDV4_GPIO_LED_LAN2,
                .active_low     = 0,
        }, {
                .name           = "tp-link:green:lan3",
                .gpio           = TL_WR741NDV4_GPIO_LED_LAN3,
                .active_low     = 0,
        }, {
                .name           = "tp-link:green:lan4",
                .gpio           = TL_WR741NDV4_GPIO_LED_LAN4,
                .active_low     = 1,
        }, {
                .name           = "tp-link:green:qss",
                .gpio           = TL_WR741NDV4_GPIO_LED_QSS,
                .active_low     = 0,
        }, {
                .name           = "tp-link:green:system",
                .gpio           = TL_WR741NDV4_GPIO_LED_SYSTEM,
                .active_low     = 1,
        }, {
                .name           = "tp-link:green:wan",
                .gpio           = TL_WR741NDV4_GPIO_LED_WAN,
                .active_low     = 0,
        }, {
                .name           = "tp-link:green:wlan",
                .gpio           = TL_WR741NDV4_GPIO_LED_WLAN,
                .active_low     = 0,
        }, {
                /* the 3G LED is only present on the MR3220 v2 */
                .name           = "tp-link:green:3g",
                .gpio           = TL_MR3220V2_GPIO_LED_3G,
                .active_low     = 0,
        },
};

static struct gpio_keys_button tl_wr741ndv4_gpio_keys[] __initdata = {
        {
                .desc           = "reset",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = TL_WR741NDV4_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_WR741NDV4_GPIO_BTN_RESET,
                .active_low     = 0,
        }, {
                .desc           = "WPS",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
                .debounce_interval = TL_WR741NDV4_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_WR741NDV4_GPIO_BTN_WPS,
                .active_low     = 0,
        }
};

static struct gpio_keys_button tl_mr3220v2_gpio_keys[] __initdata = {
        {
                .desc           = "WPS",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
                .debounce_interval = TL_WR741NDV4_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_MR3220V2_GPIO_BTN_WPS,
                .active_low     = 0,
        }, {
                .desc           = "WIFI button",
                .type           = EV_KEY,
                .code           = KEY_RFKILL,
                .debounce_interval = TL_WR741NDV4_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_MR3220V2_GPIO_BTN_WIFI,
                .active_low     = 0,
        }
};

static void __init tl_ap121_setup(void)
{
        u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
        u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);

        ath79_setup_ar933x_phy4_switch(true, true);

        ath79_gpio_function_disable(AR933X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
                                    AR933X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
                                    AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
                                    AR933X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
                                    AR933X_GPIO_FUNC_ETH_SWITCH_LED4_EN);

        ath79_register_m25p80(&tl_wr741ndv4_flash_data);
        ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
        ath79_init_mac(ath79_eth1_data.mac_addr, mac, -1);

        ath79_register_mdio(0, 0x0);
        ath79_register_eth(1);
        ath79_register_eth(0);

        ath79_register_wmac(ee, mac);
}

static void __init tl_wr741ndv4_setup(void)
{
        tl_ap121_setup();

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wr741ndv4_leds_gpio) - 1,
                                 tl_wr741ndv4_leds_gpio);
        ath79_register_gpio_keys_polled(1, TL_WR741NDV4_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(tl_wr741ndv4_gpio_keys),
                                        tl_wr741ndv4_gpio_keys);
}

MIPS_MACHINE(ATH79_MACH_TL_WR741ND_V4, "TL-WR741ND-v4",
             "TP-LINK TL-WR741ND v4", tl_wr741ndv4_setup);

static void __init tl_mr3220v2_setup(void)
{
        tl_ap121_setup();

        gpio_request_one(TL_MR3220V2_GPIO_USB_POWER,
                         GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "USB power");
        ath79_register_usb();

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wr741ndv4_leds_gpio),
                                 tl_wr741ndv4_leds_gpio);
        ath79_register_gpio_keys_polled(1, TL_WR741NDV4_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(tl_mr3220v2_gpio_keys),
                                        tl_mr3220v2_gpio_keys);
}

MIPS_MACHINE(ATH79_MACH_TL_MR3220_V2, "TL-MR3220-v2",
             "TP-LINK TL-MR3220 v2", tl_mr3220v2_setup);