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/*
 *  Linksys WRT400N board support
 *
 *  Copyright (C) 2009-2012 Gabor Juhos <juhosg@openwrt.org>
 *  Copyright (C) 2009 Imre Kaloz <kaloz@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/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 "machtypes.h"

#define WRT400N_GPIO_LED_POWER          1
#define WRT400N_GPIO_LED_WPS_BLUE       4
#define WRT400N_GPIO_LED_WPS_AMBER      5
#define WRT400N_GPIO_LED_WLAN           6

#define WRT400N_GPIO_BTN_RESET          8
#define WRT400N_GPIO_BTN_WLSEC          3

#define WRT400N_KEYS_POLL_INTERVAL      20      /* msecs */
#define WRT400N_KEYS_DEBOUNE_INTERVAL   (3 * WRT400N_KEYS_POLL_INTERVAL)

#define WRT400N_MAC_ADDR_OFFSET         0x120c
#define WRT400N_CALDATA0_OFFSET         0x1000
#define WRT400N_CALDATA1_OFFSET         0x5000

static struct mtd_partition wrt400n_partitions[] = {
        {
                .name           = "uboot",
                .offset         = 0,
                .size           = 0x030000,
                .mask_flags     = MTD_WRITEABLE,
        }, {
                .name           = "env",
                .offset         = 0x030000,
                .size           = 0x010000,
                .mask_flags     = MTD_WRITEABLE,
        }, {
                .name           = "linux",
                .offset         = 0x040000,
                .size           = 0x140000,
        }, {
                .name           = "rootfs",
                .offset         = 0x180000,
                .size           = 0x630000,
        }, {
                .name           = "nvram",
                .offset         = 0x7b0000,
                .size           = 0x010000,
                .mask_flags     = MTD_WRITEABLE,
        }, {
                .name           = "factory",
                .offset         = 0x7c0000,
                .size           = 0x010000,
                .mask_flags     = MTD_WRITEABLE,
        }, {
                .name           = "language",
                .offset         = 0x7d0000,
                .size           = 0x020000,
                .mask_flags     = MTD_WRITEABLE,
        }, {
                .name           = "caldata",
                .offset         = 0x7f0000,
                .size           = 0x010000,
                .mask_flags     = MTD_WRITEABLE,
        }, {
                .name           = "firmware",
                .offset         = 0x040000,
                .size           = 0x770000,
        }
};

static struct flash_platform_data wrt400n_flash_data = {
        .parts          = wrt400n_partitions,
        .nr_parts       = ARRAY_SIZE(wrt400n_partitions),
};

static struct gpio_led wrt400n_leds_gpio[] __initdata = {
        {
                .name           = "wrt400n:blue:wps",
                .gpio           = WRT400N_GPIO_LED_WPS_BLUE,
                .active_low     = 1,
        }, {
                .name           = "wrt400n:amber:wps",
                .gpio           = WRT400N_GPIO_LED_WPS_AMBER,
                .active_low     = 1,
        }, {
                .name           = "wrt400n:blue:wlan",
                .gpio           = WRT400N_GPIO_LED_WLAN,
                .active_low     = 1,
        }, {
                .name           = "wrt400n:blue:power",
                .gpio           = WRT400N_GPIO_LED_POWER,
                .active_low     = 0,
                .default_trigger = "default-on",
        }
};

static struct gpio_keys_button wrt400n_gpio_keys[] __initdata = {
        {
                .desc           = "reset",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = WRT400N_KEYS_DEBOUNE_INTERVAL,
                .gpio           = WRT400N_GPIO_BTN_RESET,
                .active_low     = 1,
        }, {
                .desc           = "wlsec",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
                .debounce_interval = WRT400N_KEYS_DEBOUNE_INTERVAL,
                .gpio           = WRT400N_GPIO_BTN_WLSEC,
                .active_low     = 1,
        }
};

static void __init wrt400n_setup(void)
{
        u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
        u8 *mac = art + WRT400N_MAC_ADDR_OFFSET;

        ath79_register_mdio(0, 0x0);

        ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
        ath79_eth0_data.speed = SPEED_100;
        ath79_eth0_data.duplex = DUPLEX_FULL;

        ath79_init_mac(ath79_eth1_data.mac_addr, mac, 2);
        ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
        ath79_eth1_data.phy_mask = 0x10;

        ath79_register_eth(0);
        ath79_register_eth(1);

        ath79_register_m25p80(&wrt400n_flash_data);

        ath79_register_leds_gpio(-1, ARRAY_SIZE(wrt400n_leds_gpio),
                                 wrt400n_leds_gpio);

        ath79_register_gpio_keys_polled(-1, WRT400N_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(wrt400n_gpio_keys),
                                        wrt400n_gpio_keys);

        ap94_pci_init(art + WRT400N_CALDATA0_OFFSET, NULL,
                      art + WRT400N_CALDATA1_OFFSET, NULL);
}

MIPS_MACHINE(ATH79_MACH_WRT400N, "WRT400N", "Linksys WRT400N", wrt400n_setup);