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/*
 *  TP-LINK TL-WR802N v1, v2
 *
 *  Copyright (C) 2015 Rick Pannen <pannen@gmail.com <mailto:pannen@gmail.com>>
 *  Copyright (C) 2016 Thomas Roberts <tom.p.roberts@gmail.com <mailto:tom.p.roberts@gmail.com>>
 *
 *  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_WR802N_GPIO_LED_SYSTEM       13
#define TL_WR802N_GPIO_BTN_RESET        11

#define TL_WR802N_KEYS_POLL_INTERVAL            20 /* msecs */
#define TL_WR802N_KEYS_DEBOUNCE_INTERVAL        (3 * TL_WR802N_KEYS_POLL_INTERVAL)

static const char *tl_wr802n_part_probes[] = {
        "tp-link",
        NULL,
};

static struct flash_platform_data tl_wr802n_flash_data = {
        .part_probes    = tl_wr802n_part_probes,
};

static struct gpio_led tl_wr802n_v1_leds_gpio[] __initdata = {
        {
                .name           = "tp-link:blue:system",
                .gpio           = TL_WR802N_GPIO_LED_SYSTEM,
                .active_low     = 1,
        },
};

static struct gpio_led tl_wr802n_v2_leds_gpio[] __initdata = {
        {
                .name           = "tl-wr802n-v2:green:system",
                .gpio           = TL_WR802N_GPIO_LED_SYSTEM,
                .active_low     = 1,
        },
};

static struct gpio_keys_button tl_wr802n_gpio_keys[] __initdata = {
        {
                .desc           = "reset",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = TL_WR802N_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_WR802N_GPIO_BTN_RESET,
                .active_low     = 0,
        }
};

static void __init tl_ap143_setup(void)
{
        u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
        u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
        u8 tmpmac[ETH_ALEN];

        ath79_register_m25p80(&tl_wr802n_flash_data);

        ath79_setup_ar933x_phy4_switch(false, false);

        ath79_register_mdio(0, 0x0);

        /* LAN */
        ath79_switch_data.phy4_mii_en = 1;
        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
        ath79_eth0_data.duplex = DUPLEX_FULL;
        ath79_eth0_data.speed = SPEED_100;
        ath79_eth0_data.phy_mask = BIT(4);
        ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
        ath79_register_eth(0);

        ath79_init_mac(tmpmac, mac, 0);
        ath79_register_wmac(ee, tmpmac);

        ath79_register_gpio_keys_polled(1, TL_WR802N_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(tl_wr802n_gpio_keys),
                                        tl_wr802n_gpio_keys);
}

static void __init tl_wr802n_v1_setup(void)
{
        tl_ap143_setup();

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wr802n_v1_leds_gpio),
                                 tl_wr802n_v1_leds_gpio);
}

static void __init tl_wr802n_v2_setup(void)
{
        tl_ap143_setup();

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wr802n_v2_leds_gpio),
                                 tl_wr802n_v2_leds_gpio);
}

MIPS_MACHINE(ATH79_MACH_TL_WR802N_V1, "TL-WR802N-v1", "TP-LINK TL-WR802N v1",
                tl_wr802n_v1_setup);

MIPS_MACHINE(ATH79_MACH_TL_WR802N_V2, "TL-WR802N-v2", "TP-LINK TL-WR802N v2",
                tl_wr802n_v2_setup);