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/*
 *  TP-LINK TL-WR941N/ND v6 board support
 *
 *  Copyright (C) 2015 Matthias Schiffer <mschiffer@universe-factory.net>
 *
 *  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 <linux/platform_device.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-wmac.h"
#include "machtypes.h"


#define TL_WR941ND_V6_GPIO_LED_QSS              3
#define TL_WR941ND_V6_GPIO_LED_WAN              14
#define TL_WR941ND_V6_GPIO_LED_WAN_RED          15
#define TL_WR941ND_V6_GPIO_LED_LAN1             7
#define TL_WR941ND_V6_GPIO_LED_LAN2             6
#define TL_WR941ND_V6_GPIO_LED_LAN3             5
#define TL_WR941ND_V6_GPIO_LED_LAN4             4
#define TL_WR941ND_V6_GPIO_LED_WLAN             8
#define TL_WR941ND_V6_GPIO_LED_SYSTEM           18

#define TL_WR941ND_V6_GPIO_BTN_RESET            1
#define TL_WR941ND_V6_GPIO_BTN_RFKILL           2

#define TL_WR941ND_V6_KEYS_POLL_INTERVAL        20
#define TL_WR941ND_V6_KEYS_DEBOUNCE_INTERVAL    (3 * TL_WR941ND_V6_KEYS_POLL_INTERVAL)


static struct gpio_led tl_wr941nd_v6_leds_gpio[] __initdata = {
        {
                .name           = "tp-link:blue:qss",
                .gpio           = TL_WR941ND_V6_GPIO_LED_QSS,
                .active_low     = 1,
        },
        {
                .name           = "tp-link:blue:wan",
                .gpio           = TL_WR941ND_V6_GPIO_LED_WAN,
                .active_low     = 1,
        },
        {
                .name           = "tp-link:red:wan",
                .gpio           = TL_WR941ND_V6_GPIO_LED_WAN_RED,
                .active_low     = 0,
        },
        {
                .name           = "tp-link:blue:lan1",
                .gpio           = TL_WR941ND_V6_GPIO_LED_LAN1,
                .active_low     = 1,
        },
        {
                .name           = "tp-link:blue:lan2",
                .gpio           = TL_WR941ND_V6_GPIO_LED_LAN2,
                .active_low     = 1,
        },
        {
                .name           = "tp-link:blue:lan3",
                .gpio           = TL_WR941ND_V6_GPIO_LED_LAN3,
                .active_low     = 1,
        },
        {
                .name           = "tp-link:blue:lan4",
                .gpio           = TL_WR941ND_V6_GPIO_LED_LAN4,
                .active_low     = 1,
        },
        {
                .name           = "tp-link:blue:wlan",
                .gpio           = TL_WR941ND_V6_GPIO_LED_WLAN,
                .active_low     = 1,
        },
        {
                .name           = "tp-link:blue:system",
                .gpio           = TL_WR941ND_V6_GPIO_LED_SYSTEM,
                .active_low     = 1,
        },
};

static struct gpio_keys_button tl_wr941nd_v6_gpio_keys[] __initdata = {
        {
                .desc           = "Reset button",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = TL_WR941ND_V6_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_WR941ND_V6_GPIO_BTN_RESET,
                .active_low     = 1,
        }, {
                .desc           = "RFKILL button",
                .type           = EV_KEY,
                .code           = KEY_RFKILL,
                .debounce_interval = TL_WR941ND_V6_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_WR941ND_V6_GPIO_BTN_RFKILL,
                .active_low     = 1,
        }
};


static const char *tl_wr941n_v6_part_probes[] = {
        "tp-link",
        NULL,
};

static struct flash_platform_data tl_wr941n_v6_flash_data = {
        .part_probes    = tl_wr941n_v6_part_probes,
};


static void __init tl_wr941nd_v6_setup(void)
{
        u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
        u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);

        ath79_register_m25p80(&tl_wr941n_v6_flash_data);

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wr941nd_v6_leds_gpio),
                                 tl_wr941nd_v6_leds_gpio);

        ath79_register_gpio_keys_polled(-1, TL_WR941ND_V6_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(tl_wr941nd_v6_gpio_keys),
                                        tl_wr941nd_v6_gpio_keys);

        ath79_register_mdio(0, 0x0);

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

        ath79_switch_data.phy4_mii_en = 1;

        ath79_register_eth(0);
        ath79_register_eth(1);

        ath79_register_wmac(ee, mac);

}

MIPS_MACHINE(ATH79_MACH_TL_WR941ND_V6, "TL-WR941ND-v6", "TP-LINK TL-WR941N/ND v6",
             tl_wr941nd_v6_setup);