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/*
 *  Buffalo WZR-HP-G300NH2 board support
 *
 *  Copyright (C) 2011 Felix Fietkau <nbd@nbd.name>
 *  Copyright (C) 2011 Mark Deneen <mdeneen@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/mtd/mtd.h>
#include <linux/mtd/partitions.h>

#include <asm/mach-ath79/ath79.h>

#include "dev-ap9x-pci.h"
#include "dev-eth.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-m25p80.h"
#include "dev-usb.h"
#include "machtypes.h"

#define WZRHPG300NH2_MAC_OFFSET         0x20c
#define WZRHPG300NH2_KEYS_POLL_INTERVAL     20      /* msecs */
#define WZRHPG300NH2_KEYS_DEBOUNCE_INTERVAL (3 * WZRHPG300NH2_KEYS_POLL_INTERVAL)

static struct mtd_partition wzrhpg300nh2_flash_partitions[] = {
        {
                .name           = "u-boot",
                .offset         = 0,
                .size           = 0x0040000,
                .mask_flags     = MTD_WRITEABLE,
        }, {
                .name           = "u-boot-env",
                .offset         = 0x0040000,
                .size           = 0x0010000,
                .mask_flags     = MTD_WRITEABLE,
        }, {
                .name           = "art",
                .offset         = 0x0050000,
                .size           = 0x0010000,
                .mask_flags     = MTD_WRITEABLE,
        }, {
                .name           = "firmware",
                .offset         = 0x0060000,
                .size           = 0x1f90000,
        }, {
                .name           = "user_property",
                .offset         = 0x1ff0000,
                .size           = 0x0010000,
                .mask_flags     = MTD_WRITEABLE,
        }
};

static struct flash_platform_data wzrhpg300nh2_flash_data = {
        .parts          = wzrhpg300nh2_flash_partitions,
        .nr_parts       = ARRAY_SIZE(wzrhpg300nh2_flash_partitions),
};

static struct gpio_led wzrhpg300nh2_leds_gpio[] __initdata = {
        {
                .name           = "buffalo:red:diag",
                .gpio           = 16,
                .active_low     = 1,
        },
};

static struct gpio_led wzrhpg300nh2_wmac_leds_gpio[] = {
        {
                .name           = "buffalo:blue:usb",
                .gpio           = 4,
                .active_low     = 1,
        },
        {
                .name           = "buffalo:green:wireless",
                .gpio           = 5,
                .active_low     = 1,
        },
        {
                .name           = "buffalo:orange:security",
                .gpio           = 6,
                .active_low     = 1,
        },
        {
                .name           = "buffalo:green:router",
                .gpio           = 7,
                .active_low     = 1,
        },
        {
                .name           = "buffalo:blue:movie_engine_on",
                .gpio           = 8,
                .active_low     = 1,
        },
        {
                .name           = "buffalo:blue:movie_engine_off",
                .gpio           = 9,
                .active_low     = 1,
        },
};

/* The AOSS button is wmac gpio 12 */
static struct gpio_keys_button wzrhpg300nh2_gpio_keys[] __initdata = {
        {
                .desc           = "reset",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = WZRHPG300NH2_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = 1,
                .active_low     = 1,
        }, {
                .desc           = "usb",
                .type           = EV_KEY,
                .code           = BTN_2,
                .debounce_interval = WZRHPG300NH2_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = 7,
                .active_low     = 1,
        }, {
                .desc           = "qos",
                .type           = EV_KEY,
                .code           = BTN_3,
                .debounce_interval = WZRHPG300NH2_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = 11,
                .active_low     = 0,
        }, {
                .desc           = "router_on",
                .type           = EV_KEY,
                .code           = BTN_5,
                .debounce_interval = WZRHPG300NH2_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = 8,
                .active_low     = 0,
        },
};

static void __init wzrhpg300nh2_setup(void)
{

        u8 *eeprom = (u8 *)   KSEG1ADDR(0x1f051000);
        u8 *mac0   = eeprom + WZRHPG300NH2_MAC_OFFSET;
        /* There is an eth1 but it is not connected to the switch */

        ath79_register_m25p80_multi(&wzrhpg300nh2_flash_data);

        ath79_init_mac(ath79_eth0_data.mac_addr, mac0, 0);
        ath79_register_mdio(0, ~(BIT(0)));

        ath79_init_mac(ath79_eth0_data.mac_addr, mac0, 0);
        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
        ath79_eth0_data.speed = SPEED_1000;
        ath79_eth0_data.duplex = DUPLEX_FULL;
        ath79_eth0_data.phy_mask = BIT(0);

        ath79_register_eth(0);

        /* gpio13 is usb power.  Turn it on. */
        gpio_request_one(13, GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "USB power");
        ath79_register_usb();

        ath79_register_leds_gpio(-1, ARRAY_SIZE(wzrhpg300nh2_leds_gpio),
                                 wzrhpg300nh2_leds_gpio);
        ath79_register_gpio_keys_polled(-1, WZRHPG300NH2_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(wzrhpg300nh2_gpio_keys),
                                        wzrhpg300nh2_gpio_keys);
        ap9x_pci_setup_wmac_leds(0, wzrhpg300nh2_wmac_leds_gpio,
                                ARRAY_SIZE(wzrhpg300nh2_wmac_leds_gpio));

        ap91_pci_init(eeprom, mac0);
}

MIPS_MACHINE(ATH79_MACH_WZR_HP_G300NH2, "WZR-HP-G300NH2",
             "Buffalo WZR-HP-G300NH2", wzrhpg300nh2_setup);