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/*
 *  ALFA NETWORK Hornet-UB board support
 *
 *  Copyright (C) 2011-2012 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-usb.h"
#include "dev-wmac.h"
#include "machtypes.h"

#define HORNET_UB_GPIO_LED_WLAN         0
#define HORNET_UB_GPIO_LED_USB          1
#define HORNET_UB_GPIO_LED_LAN          13
#define HORNET_UB_GPIO_LED_WAN          17
#define HORNET_UB_GPIO_LED_WPS          27
#define HORNET_UB_GPIO_EXT_LNA          28

#define HORNET_UB_GPIO_BTN_RESET        12
#define HORNET_UB_GPIO_BTN_WPS          11

#define HORNET_UB_GPIO_USB_POWER        26

#define HORNET_UB_KEYS_POLL_INTERVAL    20      /* msecs */
#define HORNET_UB_KEYS_DEBOUNCE_INTERVAL        (3 * HORNET_UB_KEYS_POLL_INTERVAL)

#define HORNET_UB_MAC0_OFFSET           0x0000
#define HORNET_UB_MAC1_OFFSET           0x0006
#define HORNET_UB_CALDATA_OFFSET        0x1000

static struct gpio_led hornet_ub_leds_gpio[] __initdata = {
        {
                .name           = "alfa:blue:lan",
                .gpio           = HORNET_UB_GPIO_LED_LAN,
                .active_low     = 0,
        },
        {
                .name           = "alfa:blue:usb",
                .gpio           = HORNET_UB_GPIO_LED_USB,
                .active_low     = 0,
        },
        {
                .name           = "alfa:blue:wan",
                .gpio           = HORNET_UB_GPIO_LED_WAN,
                .active_low     = 1,
        },
        {
                .name           = "alfa:blue:wlan",
                .gpio           = HORNET_UB_GPIO_LED_WLAN,
                .active_low     = 0,
        },
        {
                .name           = "alfa:blue:wps",
                .gpio           = HORNET_UB_GPIO_LED_WPS,
                .active_low     = 1,
        },
};

static struct gpio_keys_button hornet_ub_gpio_keys[] __initdata = {
        {
                .desc           = "WPS button",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
                .debounce_interval = HORNET_UB_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = HORNET_UB_GPIO_BTN_WPS,
                .active_low     = 0,
        },
        {
                .desc           = "Reset button",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = HORNET_UB_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = HORNET_UB_GPIO_BTN_RESET,
                .active_low     = 1,
        }
};

static void __init hornet_ub_gpio_setup(void)
{
        u32 t;

        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);

        t = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
        t |= AR933X_BOOTSTRAP_MDIO_GPIO_EN;
        ath79_reset_wr(AR933X_RESET_REG_BOOTSTRAP, t);

        gpio_request_one(HORNET_UB_GPIO_USB_POWER,
                         GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "USB power");
        gpio_request_one(HORNET_UB_GPIO_EXT_LNA,
                        GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                        "external LNA0");

}

static void __init hornet_ub_setup(void)
{
        u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);

        hornet_ub_gpio_setup();

        ath79_register_m25p80(NULL);
        ath79_register_leds_gpio(-1, ARRAY_SIZE(hornet_ub_leds_gpio),
                                        hornet_ub_leds_gpio);
        ath79_register_gpio_keys_polled(-1, HORNET_UB_KEYS_POLL_INTERVAL,
                                         ARRAY_SIZE(hornet_ub_gpio_keys),
                                         hornet_ub_gpio_keys);

        ath79_init_mac(ath79_eth1_data.mac_addr,
                        art + HORNET_UB_MAC0_OFFSET, 0);
        ath79_init_mac(ath79_eth0_data.mac_addr,
                        art + HORNET_UB_MAC1_OFFSET, 0);

        ath79_register_mdio(0, 0x0);

        ath79_register_eth(1);
        ath79_register_eth(0);

        ath79_register_wmac(art + HORNET_UB_CALDATA_OFFSET, NULL);
        ath79_register_usb();
}

MIPS_MACHINE(ATH79_MACH_HORNET_UB, "HORNET-UB", "ALFA NETWORK Hornet-UB",
             hornet_ub_setup);