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/*
 *  TP-LINK TL-MR3220/3420 board support
 *
 *  Copyright (C) 2010-2012 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 "dev-eth.h"
#include "dev-ap9x-pci.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-m25p80.h"
#include "dev-usb.h"
#include "machtypes.h"

#define TL_MR3X20_GPIO_LED_QSS          0
#define TL_MR3X20_GPIO_LED_SYSTEM       1
#define TL_MR3X20_GPIO_LED_3G           8

#define TL_MR3X20_GPIO_BTN_RESET        11
#define TL_MR3X20_GPIO_BTN_QSS          12

#define TL_MR3X20_GPIO_USB_POWER        6

#define TL_MR3X20_KEYS_POLL_INTERVAL    20      /* msecs */
#define TL_MR3X20_KEYS_DEBOUNCE_INTERVAL (3 * TL_MR3X20_KEYS_POLL_INTERVAL)

static const char *tl_mr3x20_part_probes[] = {
        "tp-link",
        NULL,
};

static struct flash_platform_data tl_mr3x20_flash_data = {
        .part_probes    = tl_mr3x20_part_probes,
};

static struct gpio_led tl_mr3x20_leds_gpio[] __initdata = {
        {
                .name           = "tp-link:green:system",
                .gpio           = TL_MR3X20_GPIO_LED_SYSTEM,
                .active_low     = 1,
        }, {
                .name           = "tp-link:green:qss",
                .gpio           = TL_MR3X20_GPIO_LED_QSS,
                .active_low     = 1,
        }, {
                .name           = "tp-link:green:3g",
                .gpio           = TL_MR3X20_GPIO_LED_3G,
                .active_low     = 1,
        }
};

static struct gpio_keys_button tl_mr3x20_gpio_keys[] __initdata = {
        {
                .desc           = "reset",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = TL_MR3X20_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_MR3X20_GPIO_BTN_RESET,
                .active_low     = 1,
        }, {
                .desc           = "qss",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
                .debounce_interval = TL_MR3X20_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_MR3X20_GPIO_BTN_QSS,
                .active_low     = 1,
        }
};

static void __init tl_ap99_setup(void)
{
        u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
        u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);

        ath79_register_m25p80(&tl_mr3x20_flash_data);

        ath79_register_gpio_keys_polled(-1, TL_MR3X20_KEYS_POLL_INTERVAL,
                                         ARRAY_SIZE(tl_mr3x20_gpio_keys),
                                         tl_mr3x20_gpio_keys);

        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);

        /* LAN ports */
        ath79_register_eth(1);
        /* WAN port */
        ath79_register_eth(0);

        ap91_pci_init(ee, mac);
}

static void __init tl_mr3x20_usb_setup(void)
{
        /* enable power for the USB port */
        gpio_request_one(TL_MR3X20_GPIO_USB_POWER,
                         GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "USB power");
        ath79_register_usb();
}

static void __init tl_mr3220_setup(void)
{
        tl_ap99_setup();

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_mr3x20_leds_gpio),
                                 tl_mr3x20_leds_gpio);
        ap9x_pci_setup_wmac_led_pin(0, 1);
        tl_mr3x20_usb_setup();
}

MIPS_MACHINE(ATH79_MACH_TL_MR3220, "TL-MR3220", "TP-LINK TL-MR3220",
             tl_mr3220_setup);

static void __init tl_mr3420_setup(void)
{
        tl_ap99_setup();

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_mr3x20_leds_gpio),
                                 tl_mr3x20_leds_gpio);
        ap9x_pci_setup_wmac_led_pin(0, 0);
        tl_mr3x20_usb_setup();
}

MIPS_MACHINE(ATH79_MACH_TL_MR3420, "TL-MR3420", "TP-LINK TL-MR3420",
             tl_mr3420_setup);

static void __init tl_wr841n_v7_setup(void)
{
        tl_ap99_setup();

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_mr3x20_leds_gpio) - 1,
                                 tl_mr3x20_leds_gpio);
        ap9x_pci_setup_wmac_led_pin(0, 0);
}

MIPS_MACHINE(ATH79_MACH_TL_WR841N_V7, "TL-WR841N-v7",
             "TP-LINK TL-WR841N/ND v7", tl_wr841n_v7_setup);