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/*
 * Atheros ARCHER_C7 reference board support
 *
 * Copyright (c) 2018 Arvid E. Picciani <aep@exys.org>
 * Copyright (c) 2017 Felix Fietkau <nbd@nbd.name>
 * Copyright (c) 2014 The Linux Foundation. All rights reserved.
 * Copyright (c) 2012 Gabor Juhos <juhosg@openwrt.org>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 */

#include <linux/platform_device.h>
#include <linux/ath9k_platform.h>
#include <linux/ar8216_platform.h>
#include <linux/proc_fs.h>
#include <linux/gpio.h>
#include <linux/spi/spi_gpio.h>
#include <linux/spi/74x164.h>

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

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


#define ARCHER_C7_GPIO_BTN_RESET        5
#define ARCHER_C7_GPIO_BTN_WPS_WIFI     2

#define ARCHER_C7_GPIO_LED_WLAN5        9
#define ARCHER_C7_GPIO_LED_POWER        6
#define ARCHER_C7_GPIO_LED_USB          7
#define ARCHER_C7_GPIO_LED_WPS          1
#define ARCHER_C7_GPIO_LED_LAN1         8
#define ARCHER_C7_GPIO_LED_LAN2         17
#define ARCHER_C7_GPIO_LED_LAN3         16
#define ARCHER_C7_GPIO_LED_LAN4         15
#define ARCHER_C7_GPIO_LED_WAN_GREEN    21
#define ARCHER_C7_GPIO_LED_WAN_AMBER    20
#define ARCHER_C7_GPIO_LED_WLAN2        14
#define ARCHER_C7_GPIO_USB_PWR   19

#define ARCHER_C7_KEYS_POLL_INTERVAL        20     /* msecs */
#define ARCHER_C7_KEYS_DEBOUNCE_INTERVAL    (3 * ARCHER_C7_KEYS_POLL_INTERVAL)

#define ARCHER_C7_MAC0_OFFSET               0
#define ARCHER_C7_MAC1_OFFSET               6
#define ARCHER_C7_WMAC_CALDATA_OFFSET       0x1000

#define ARCHER_C7_GPIO_MDC                      3
#define ARCHER_C7_GPIO_MDIO                     4

static struct gpio_led archer_c7_v5_leds_gpio[] __initdata = {
        {
                .name           = "archer-c7-v5:green:power",
                .gpio           = ARCHER_C7_GPIO_LED_POWER,
                .active_low     = 1,
        }, {
                .name           = "archer-c7-v5:green:wps",
                .gpio           = ARCHER_C7_GPIO_LED_WPS,
                .active_low     = 1,
        }, {
                .name           = "archer-c7-v5:green:wlan2g",
                .gpio           = ARCHER_C7_GPIO_LED_WLAN2,
                .active_low     = 1,
        }, {
                .name           = "archer-c7-v5:green:wlan5g",
                .gpio           = ARCHER_C7_GPIO_LED_WLAN5,
                .active_low     = 1,
        }, {
                .name           = "archer-c7-v5:green:lan1",
                .gpio           = ARCHER_C7_GPIO_LED_LAN1,
                .active_low     = 1,
        }, {
                .name           = "archer-c7-v5:green:lan2",
                .gpio           = ARCHER_C7_GPIO_LED_LAN2,
                .active_low     = 1,
        }, {
                .name           = "archer-c7-v5:green:lan3",
                .gpio           = ARCHER_C7_GPIO_LED_LAN3,
                .active_low     = 1,
        }, {
                .name           = "archer-c7-v5:green:lan4",
                .gpio           = ARCHER_C7_GPIO_LED_LAN4,
                .active_low     = 1,
        }, {
                .name           = "archer-c7-v5:green:wan",
                .gpio           =  ARCHER_C7_GPIO_LED_WAN_GREEN,
                .active_low     = 1,
        }, {
                .name           = "archer-c7-v5:amber:wan",
                .gpio           =  ARCHER_C7_GPIO_LED_WAN_AMBER,
                .active_low     = 1,
        }, {
                .name           = "archer-c7-v5:green:usb",
                .gpio           =  ARCHER_C7_GPIO_LED_USB,
                .active_low     = 1,
        },
};

static struct gpio_keys_button archer_c7_v5_gpio_keys[] __initdata = {
        {
                .desc           = "WPS and WIFI button",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
                .debounce_interval = ARCHER_C7_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = ARCHER_C7_GPIO_BTN_WPS_WIFI,
                .active_low     = 1,
        },
        {
                .desc           = "Reset button",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = ARCHER_C7_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = ARCHER_C7_GPIO_BTN_RESET,
                .active_low     = 1,
        },
};


static struct ar8327_pad_cfg archer_c7_v5_ar8337_pad0_cfg = {
        .mode = AR8327_PAD_MAC_SGMII,
        .sgmii_delay_en = true,
};

static struct ar8327_platform_data archer_c7_v5_ar8337_data = {
        .pad0_cfg = &archer_c7_v5_ar8337_pad0_cfg,
        .port0_cfg = {
                .force_link = 1,
                .speed = AR8327_PORT_SPEED_1000,
                .duplex = 1,
                .txpause = 1,
                .rxpause = 1,
        },
};

static struct mdio_board_info archer_c7_v5_mdio0_info[] = {
        {
                .bus_id = "ag71xx-mdio.0",
                .phy_addr = 0,
                .platform_data = &archer_c7_v5_ar8337_data,
        },
};


static void __init archer_c7_v5_setup(void)
{
        u8 *art = (u8 *) KSEG1ADDR(0x1f050000);
        u8 *mac = (u8 *) KSEG1ADDR(0x1f060008);

        ath79_register_m25p80(NULL);


        ath79_register_leds_gpio(-1, ARRAY_SIZE(archer_c7_v5_leds_gpio),
                                archer_c7_v5_leds_gpio);

        ath79_register_gpio_keys_polled(-1, ARCHER_C7_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(archer_c7_v5_gpio_keys),
                                        archer_c7_v5_gpio_keys);

        ath79_register_usb();

        ath79_gpio_output_select(ARCHER_C7_GPIO_MDC, QCA956X_GPIO_OUT_MUX_GE0_MDC);
        ath79_gpio_output_select(ARCHER_C7_GPIO_MDIO, QCA956X_GPIO_OUT_MUX_GE0_MDO);

        ath79_register_mdio(0, 0x0);

        mdiobus_register_board_info(archer_c7_v5_mdio0_info,
                                    ARRAY_SIZE(archer_c7_v5_mdio0_info));

        gpio_request_one(ARCHER_C7_GPIO_USB_PWR,
                         GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
                         "USB power");

        ath79_register_wmac(art + ARCHER_C7_WMAC_CALDATA_OFFSET, mac);
        ath79_register_pci();

        /* GMAC0 is connected to an AR8337 switch */
        ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_SGMII;
        ath79_eth0_data.speed = SPEED_1000;
        ath79_eth0_data.duplex = DUPLEX_FULL;
        ath79_eth0_data.phy_mask = BIT(0);
        ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
        ath79_register_eth(0);
}

MIPS_MACHINE(ATH79_MACH_ARCHER_C7_V5, "ARCHER-C7-V5", "TP-LINK Archer C7 v5",
             archer_c7_v5_setup);