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/*
 *  TRENDnet TEW-712BR board support
 *
 *  Copyright (C) 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-wmac.h"
#include "machtypes.h"

#define TEW_712BR_GPIO_BTN_WPS          11
#define TEW_712BR_GPIO_BTN_RESET        12

#define TEW_712BR_GPIO_LED_LAN1         13
#define TEW_712BR_GPIO_LED_LAN2         14
#define TEW_712BR_GPIO_LED_LAN3         15
#define TEW_712BR_GPIO_LED_LAN4         16
#define TEW_712BR_GPIO_LED_POWER_GREEN  20
#define TEW_712BR_GPIO_LED_POWER_ORANGE 27
#define TEW_712BR_GPIO_LED_WAN_GREEN    17
#define TEW_712BR_GPIO_LED_WAN_ORANGE   23
#define TEW_712BR_GPIO_LED_WLAN         0
#define TEW_712BR_GPIO_LED_WPS          26

#define TEW_712BR_GPIO_WAN_LED_ENABLE   1

#define TEW_712BR_KEYS_POLL_INTERVAL    20      /* msecs */
#define TEW_712BR_KEYS_DEBOUNCE_INTERVAL (3 * TEW_712BR_KEYS_POLL_INTERVAL)

#define TEW_712BR_ART_ADDRESS           0x1f010000
#define TEW_712BR_CALDATA_OFFSET        0x1000

#define TEW_712BR_MAC_PART_ADDRESS      0x1f020000
#define TEW_712BR_LAN_MAC_OFFSET        0x04
#define TEW_712BR_WAN_MAC_OFFSET        0x16

static struct gpio_led tew_712br_leds_gpio[] __initdata = {
        {
                .name           = "trendnet:green:lan1",
                .gpio           = TEW_712BR_GPIO_LED_LAN1,
                .active_low     = 0,
        }, {
                .name           = "trendnet:green:lan2",
                .gpio           = TEW_712BR_GPIO_LED_LAN2,
                .active_low     = 0,
        }, {
                .name           = "trendnet:green:lan3",
                .gpio           = TEW_712BR_GPIO_LED_LAN3,
                .active_low     = 0,
        }, {
                .name           = "trendnet:green:lan4",
                .gpio           = TEW_712BR_GPIO_LED_LAN4,
                .active_low     = 0,
        }, {
                .name           = "trendnet:blue:wps",
                .gpio           = TEW_712BR_GPIO_LED_WPS,
                .active_low     = 1,
        }, {
                .name           = "trendnet:green:power",
                .gpio           = TEW_712BR_GPIO_LED_POWER_GREEN,
                .active_low     = 0,
        }, {
                .name           = "trendnet:orange:power",
                .gpio           = TEW_712BR_GPIO_LED_POWER_ORANGE,
                .active_low     = 0,
        }, {
                .name           = "trendnet:green:wan",
                .gpio           = TEW_712BR_GPIO_LED_WAN_GREEN,
                .active_low     = 1,
        }, {
                .name           = "trendnet:orange:wan",
                .gpio           = TEW_712BR_GPIO_LED_WAN_ORANGE,
                .active_low     = 0,
        }, {
                .name           = "trendnet:green:wlan",
                .gpio           = TEW_712BR_GPIO_LED_WLAN,
                .active_low     = 0,
        },
};

static struct gpio_keys_button tew_712br_gpio_keys[] __initdata = {
        {
                .desc           = "Reset button",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = TEW_712BR_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TEW_712BR_GPIO_BTN_RESET,
                .active_low     = 1,
        }, {
                .desc           = "WPS button",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
                .debounce_interval = TEW_712BR_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = TEW_712BR_GPIO_BTN_WPS,
                .active_low     = 1,
        }
};

static void __init tew_712br_setup(void)
{
        u8 *art = (u8 *) KSEG1ADDR(TEW_712BR_ART_ADDRESS);
        u8 *mac = (u8 *) KSEG1ADDR(TEW_712BR_MAC_PART_ADDRESS);
        u8 lan_mac[ETH_ALEN];
        u8 wan_mac[ETH_ALEN];

        ath79_setup_ar933x_phy4_switch(false, false);

        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);

        gpio_request_one(TEW_712BR_GPIO_WAN_LED_ENABLE,
                         GPIOF_OUT_INIT_LOW, "WAN LED enable");

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tew_712br_leds_gpio),
                                 tew_712br_leds_gpio);

        ath79_register_gpio_keys_polled(1, TEW_712BR_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(tew_712br_gpio_keys),
                                        tew_712br_gpio_keys);

        ath79_register_m25p80(NULL);

        ath79_parse_ascii_mac(mac + TEW_712BR_LAN_MAC_OFFSET, lan_mac);
        ath79_parse_ascii_mac(mac + TEW_712BR_WAN_MAC_OFFSET, wan_mac);

        ath79_init_mac(ath79_eth0_data.mac_addr, wan_mac, 0);
        ath79_init_mac(ath79_eth1_data.mac_addr, lan_mac, 0);

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

        ath79_register_wmac(art + TEW_712BR_CALDATA_OFFSET, wan_mac);
}

MIPS_MACHINE(ATH79_MACH_TEW_712BR, "TEW-712BR",
             "TRENDnet TEW-712BR", tew_712br_setup);