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/*
 *  TP-LINK TL-WDR6500 v2
 *
 *  Copyright (C) 2015 Weijie Gao <hackpascal@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/pci.h>
#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-ap9x-pci.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"
#include "pci.h"

#define TL_WDR6500_V2_GPIO_LED_SYS      21
#define TL_WDR6500_V2_GPIO_LED_WAN      18
#define TL_WDR6500_V2_GPIO_LED_LAN1     17
#define TL_WDR6500_V2_GPIO_LED_LAN2     16
#define TL_WDR6500_V2_GPIO_LED_LAN3     15
#define TL_WDR6500_V2_GPIO_LED_LAN4     14

#define TL_WDR6500_V2_GPIO_BTN_RESET    1

#define TL_WDR6500_V2_KEYS_POLL_INTERVAL        20      /* msecs */
#define TL_WDR6500_V2_KEYS_DEBOUNCE_INTERVAL    (3 * TL_WDR6500_V2_KEYS_POLL_INTERVAL)

#define TL_WDR6500_V2_WMAC_CALDATA_OFFSET       0x1000
#define TL_WDR6500_V2_PCIE_CALDATA_OFFSET       0x5000

static const char *tl_wdr6500_v2_part_probes[] = {
        "tp-link-64k",
        NULL,
};

static struct flash_platform_data tl_wdr6500_v2_flash_data = {
        .part_probes    = tl_wdr6500_v2_part_probes,
};

static struct gpio_led tl_wdr6500_v2_leds_gpio[] __initdata = {
        {
                .name           = "tp-link:green:lan1",
                .gpio           = TL_WDR6500_V2_GPIO_LED_LAN1,
                .active_low     = 1,
        }, {
                .name           = "tp-link:green:lan2",
                .gpio           = TL_WDR6500_V2_GPIO_LED_LAN2,
                .active_low     = 1,
        }, {
                .name           = "tp-link:green:lan3",
                .gpio           = TL_WDR6500_V2_GPIO_LED_LAN3,
                .active_low     = 1,
        }, {
                .name           = "tp-link:green:lan4",
                .gpio           = TL_WDR6500_V2_GPIO_LED_LAN4,
                .active_low     = 1,
        }, {
                .name           = "tp-link:green:wan",
                .gpio           = TL_WDR6500_V2_GPIO_LED_WAN,
                .active_low     = 1,
        }, {
                .name           = "tp-link:white:system",
                .gpio           = TL_WDR6500_V2_GPIO_LED_SYS,
                .active_low     = 0,
        },
};

static struct gpio_keys_button tl_wdr6500_v2_gpio_keys[] __initdata = {
        {
                .desc           = "Reset button",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = TL_WDR6500_V2_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TL_WDR6500_V2_GPIO_BTN_RESET,
                .active_low     = 1,
        }
};


static void __init tl_ap151_setup(void)
{
        u8 *mac = (u8 *) KSEG1ADDR(0x1f00fc00);
        u8 *ee = (u8 *) KSEG1ADDR(0x1fff0000);
        u8 tmpmac[ETH_ALEN];

        ath79_register_m25p80(&tl_wdr6500_v2_flash_data);

        ath79_setup_ar933x_phy4_switch(false, false);

        ath79_register_mdio(1, 0x0);

        /* WAN */
        ath79_switch_data.phy4_mii_en = 1;
        ath79_switch_data.phy_poll_mask = BIT(4);
        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
        ath79_eth0_data.phy_mask = BIT(4);
        ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
        ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
        ath79_register_eth(0);

        /* LAN */
        ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
        ath79_eth1_data.duplex = DUPLEX_FULL;
        ath79_eth1_data.speed = SPEED_1000;
        ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0);
        ath79_register_eth(1);

        ath79_init_mac(tmpmac, mac, -1);
        ath79_register_wmac(ee + TL_WDR6500_V2_WMAC_CALDATA_OFFSET, tmpmac);

        ath79_register_pci();

        ath79_register_usb();
}

static void __init tl_wdr6500_v2_setup(void)
{
        tl_ap151_setup();

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wdr6500_v2_leds_gpio),
                                 tl_wdr6500_v2_leds_gpio);

        ath79_register_gpio_keys_polled(1, TL_WDR6500_V2_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(tl_wdr6500_v2_gpio_keys),
                                        tl_wdr6500_v2_gpio_keys);
}

MIPS_MACHINE(ATH79_MACH_TL_WDR6500_V2, "TL-WDR6500-v2", "TP-LINK TL-WDR6500 v2",
             tl_wdr6500_v2_setup);