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/*
 *  Belkin AC1750DB (F9K1115V2) board support
 *
 *  Copyright (C) 2014 Gabor Juhos <juhosg@openwrt.org>
 *  Copyright (C) 2014 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/gpio.h>
#include <linux/platform_device.h>
#include <linux/ar8216_platform.h>

#include <asm/mach-ath79/ar71xx_regs.h>

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

#define F9K1115V2_GPIO_LED_USB2         4
#define F9K1115V2_GPIO_LED_WPS_AMBER    14
#define F9K1115V2_GPIO_LED_STATUS_AMBER 15
#define F9K1115V2_GPIO_LED_WPS_BLUE     19
#define F9K1115V2_GPIO_LED_STATUS_BLUE  20

#define F9K1115V2_GPIO_BTN_WPS          16
#define F9K1115V2_GPIO_BTN_RESET        17

#define F9K1115V2_GPIO_USB2_POWER       21

#define F9K1115V2_KEYS_POLL_INTERVAL    20      /* msecs */
#define F9K1115V2_KEYS_DEBOUNCE_INTERVAL (3 * F9K1115V2_KEYS_POLL_INTERVAL)

#define F9K1115V2_WAN_MAC_OFFSET        0
#define F9K1115V2_LAN_MAC_OFFSET        6
#define F9K1115V2_WMAC_CALDATA_OFFSET   0x1000
#define F9K1115V2_PCIE_CALDATA_OFFSET   0x5000

static struct gpio_led f9k1115v2_leds_gpio[] __initdata = {
        {
                .name           = "belkin:amber:status",
                .gpio           = F9K1115V2_GPIO_LED_STATUS_AMBER,
                .active_low     = 1,
        },
        {
                .name           = "belkin:blue:status",
                .gpio           = F9K1115V2_GPIO_LED_STATUS_BLUE,
                .active_low     = 1,
        },
        {
                .name           = "belkin:blue:wps",
                .gpio           = F9K1115V2_GPIO_LED_WPS_BLUE,
                .active_low     = 1,
        },
        {
                .name           = "belkin:amber:wps",
                .gpio           = F9K1115V2_GPIO_LED_WPS_AMBER,
                .active_low     = 1,
        },
        {
                .name           = "belkin:green:usb2",
                .gpio           = F9K1115V2_GPIO_LED_USB2,
                .active_low     = 1,
        },
};

static struct gpio_keys_button f9k1115v2_gpio_keys[] __initdata = {
        {
                .desc           = "Reset button",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = F9K1115V2_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = F9K1115V2_GPIO_BTN_RESET,
                .active_low     = 1,
        },
        {
                .desc           = "WPS button",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
                .debounce_interval = F9K1115V2_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = F9K1115V2_GPIO_BTN_WPS,
                .active_low     = 1,
        },
};

static struct ar8327_pad_cfg f9k1115v2_ar8327_pad0_cfg = {
        /* Use the RGMII interface for the GMAC0 of the AR8337 switch */
        .mode = AR8327_PAD_MAC_RGMII,
        .txclk_delay_en = true,
        .rxclk_delay_en = true,
        .txclk_delay_sel = AR8327_CLK_DELAY_SEL1,
        .rxclk_delay_sel = AR8327_CLK_DELAY_SEL2,
};

static struct ar8327_pad_cfg f9k1115v2_ar8327_pad6_cfg = {
        /* Use the SGMII interface for the GMAC6 of the AR8337 switch */
        .mode = AR8327_PAD_MAC_SGMII,
        .rxclk_delay_en = true,
        .rxclk_delay_sel = AR8327_CLK_DELAY_SEL0,
};

static struct ar8327_platform_data f9k1115v2_ar8327_data = {
        .pad0_cfg = &f9k1115v2_ar8327_pad0_cfg,
        .pad6_cfg = &f9k1115v2_ar8327_pad6_cfg,
        .port0_cfg = {
                .force_link = 1,
                .speed = AR8327_PORT_SPEED_1000,
                .duplex = 1,
                .txpause = 1,
                .rxpause = 1,
        },
        .port6_cfg = {
                .force_link = 1,
                .speed = AR8327_PORT_SPEED_1000,
                .duplex = 1,
                .txpause = 1,
                .rxpause = 1,
        },
};

static struct mdio_board_info f9k1115v2_mdio0_info[] = {
        {
                .bus_id = "ag71xx-mdio.0",
                .mdio_addr = 0,
                .platform_data = &f9k1115v2_ar8327_data,
        },
};

static void __init f9k1115v2_setup(void)
{
        u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);

        ath79_register_m25p80(NULL);

        ath79_register_leds_gpio(-1, ARRAY_SIZE(f9k1115v2_leds_gpio),
                                 f9k1115v2_leds_gpio);
        ath79_register_gpio_keys_polled(-1, F9K1115V2_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(f9k1115v2_gpio_keys),
                                        f9k1115v2_gpio_keys);

        ath79_register_wmac(art + F9K1115V2_WMAC_CALDATA_OFFSET, NULL);

        ath79_register_mdio(0, 0x0);
        mdiobus_register_board_info(f9k1115v2_mdio0_info,
                                    ARRAY_SIZE(f9k1115v2_mdio0_info));

        ath79_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN);

        ath79_init_mac(ath79_eth0_data.mac_addr,
                       art + F9K1115V2_WAN_MAC_OFFSET, 0);

        ath79_init_mac(ath79_eth1_data.mac_addr,
                       art + F9K1115V2_LAN_MAC_OFFSET, 0);

        ath79_eth0_pll_data.pll_1000 = 0xa6000000;
        ath79_eth1_pll_data.pll_1000 = 0x03000101;

        /* GMAC0 is connected to the RMGII interface */
        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
        ath79_eth0_data.phy_mask = BIT(0);
        ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;

        ath79_register_eth(0);

        /* GMAC1 is connected to the SGMII interface */
        ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_SGMII;
        ath79_eth1_data.speed = SPEED_1000;
        ath79_eth1_data.duplex = DUPLEX_FULL;

        ath79_register_eth(1);

        ath79_register_pci();

        ath79_register_usb();
        gpio_request_one(F9K1115V2_GPIO_USB2_POWER,
                         GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "USB2 power");
}

MIPS_MACHINE(ATH79_MACH_F9K1115V2, "F9K1115V2", "Belkin AC1750DB",
             f9k1115v2_setup);