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/*
 *  TP-Link TL-WPA8630 board support
 *
 *  Copyright (C) 2016 Henryk Heisig <hyniu@o2.pl>
 *
 *  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/platform_device.h>
#include <linux/ath9k_platform.h>
#include <linux/ar8216_platform.h>
#include <asm/mach-ath79/ar71xx_regs.h>

#include "common.h"
#include "dev-m25p80.h"
#include "machtypes.h"
#include "pci.h"
#include "dev-ap9x-pci.h"
#include "dev-eth.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-spi.h"
#include "dev-wmac.h"

#define TL_WPA8630_KEYS_POLL_INTERVAL   20
#define TL_WPA8630_KEYS_DEBOUNCE_INTERVAL       (3 * TL_WPA8630_KEYS_POLL_INTERVAL)

#define TL_WPA8630_GPIO_LED_POWER               1
#define TL_WPA8630_GPIO_LED_LAN         5
#define TL_WPA8630_GPIO_LED_WLAN                19
#define TL_WPA8630_GPIO_LED_WLAN5               21

#define TL_WPA8630_GPIO_BTN_RESET               2
#define TL_WPA8630_GPIO_BTN_RFKILL              8
#define TL_WPA8630_GPIO_BTN_LED         6
#define TL_WPA8630_GPIO_BTN_PAIR                7

#define TL_WPA8630_MAC0_OFFSET          0x0000
#define TL_WPA8630_WMAC_CALDATA_OFFSET  0x1000
#define TL_WPA8630_PCI_CALDATA_OFFSET   0x5000

static const char *tl_wpa8630_part_probes[] = {
        "tp-link-64k",
        NULL,
};

static struct flash_platform_data tl_wpa8630_flash_data = {
        .part_probes    = tl_wpa8630_part_probes,
        .type           = "s25fl064k",
};

static struct gpio_led tl_wpa8630_leds_gpio[] __initdata = {
        {
                .name           = "tl-wpa8630:green:power",
                .gpio           = TL_WPA8630_GPIO_LED_POWER,
                .active_low     = 1,
        },
        {
                .name           = "tl-wpa8630:green:lan",
                .gpio           = TL_WPA8630_GPIO_LED_LAN,
                .active_low     = 1,
        },
        {
                .name           = "tl-wpa8630:green:wlan",
                .gpio           = TL_WPA8630_GPIO_LED_WLAN,
                .active_low     = 1,
        },
        {
                .name           = "tl-wpa8630:green:wlan5",
                .gpio           = TL_WPA8630_GPIO_LED_WLAN5,
                .active_low     = 1,
        },
};

static struct gpio_keys_button tl_wpa8630_gpio_keys[] __initdata = {
        {
                .desc                   = "Reset button",
                .type                   = EV_KEY,
                .code                   = KEY_RESTART,
                .debounce_interval      = TL_WPA8630_KEYS_DEBOUNCE_INTERVAL,
                .gpio                   = TL_WPA8630_GPIO_BTN_RESET,
                .active_low             = 1,
        },
        {
                .desc                   = "RFKILL button",
                .type                   = EV_KEY,
                .code                   = KEY_RFKILL,
                .debounce_interval      = TL_WPA8630_KEYS_DEBOUNCE_INTERVAL,
                .gpio                   = TL_WPA8630_GPIO_BTN_RFKILL,
                .active_low             = 1,
        },
        {
                .desc                   = "LED",
                .type                   = EV_KEY,
                .code                   = BTN_0,
                .debounce_interval      = TL_WPA8630_KEYS_DEBOUNCE_INTERVAL,
                .gpio                   = TL_WPA8630_GPIO_BTN_LED,
                .active_low             = 1,
        },
        {
                .desc                   = "Pair",
                .type                   = EV_KEY,
                .code                   = BTN_1,
                .debounce_interval      = TL_WPA8630_KEYS_DEBOUNCE_INTERVAL,
                .gpio                   = TL_WPA8630_GPIO_BTN_PAIR,
                .active_low             = 1,
        },
};

/* GMAC0 of the QCA8337 switch is connected to the QCA9563 SoC via SGMII */
static struct ar8327_pad_cfg tl_wpa8630_qca8337_pad0_cfg = {
        .mode = AR8327_PAD_MAC_SGMII,
        .sgmii_delay_en = true,
};

static struct ar8327_platform_data tl_wpa8630_qca8337_data = {
        .pad0_cfg = &tl_wpa8630_qca8337_pad0_cfg,
        .port0_cfg = {
                .force_link = 1,
                .speed = AR8327_PORT_SPEED_1000,
                .duplex = 1,
                .txpause = 1,
                .rxpause = 1,
        },
};

static struct mdio_board_info tl_wpa8630_mdio0_info[] = {
        {
                .bus_id = "ag71xx-mdio.0",
                .mdio_addr = 0,
                .platform_data = &tl_wpa8630_qca8337_data,
        },
};

static void __init tl_wpa8630_setup(void)
{
        u8 *mac = (u8 *) KSEG1ADDR(0x1f00fc00);
        u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);

        ath79_register_m25p80(&tl_wpa8630_flash_data);

        ath79_init_mac(ath79_eth0_data.mac_addr,
                art + TL_WPA8630_MAC0_OFFSET, 0);

        platform_device_register(&ath79_mdio0_device);

        mdiobus_register_board_info(tl_wpa8630_mdio0_info,
                                    ARRAY_SIZE(tl_wpa8630_mdio0_info));

        /* GMAC0 is connected to an AR8337 switch */
        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_SGMII;
        ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
        ath79_eth0_data.phy_mask = ~BIT(4);
        ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);

        ath79_register_eth(0);

        ath79_register_wmac(art + TL_WPA8630_WMAC_CALDATA_OFFSET, mac);

        ap91_pci_init(art + TL_WPA8630_PCI_CALDATA_OFFSET, NULL);

        ath79_register_leds_gpio(-1, ARRAY_SIZE(tl_wpa8630_leds_gpio),
                                tl_wpa8630_leds_gpio);

        ath79_register_gpio_keys_polled(-1, TL_WPA8630_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(tl_wpa8630_gpio_keys),
                                        tl_wpa8630_gpio_keys);
}

MIPS_MACHINE(ATH79_MACH_TL_WPA8630, "TL-WPA8630", "TP-LINK TL-WPA8630",
        tl_wpa8630_setup);