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/*
 * ALFA Network AP91-5G board support
 *
 * Copyright (C) 2018 Piotr Dymacz <pepe2k@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/platform_device.h>

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

#include "common.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 AP91_5G_GPIO_LED_LAN            17
#define AP91_5G_GPIO_LED_SIGNAL1        12
#define AP91_5G_GPIO_LED_SIGNAL2        8
#define AP91_5G_GPIO_LED_SIGNAL3        6
#define AP91_5G_GPIO_LED_SIGNAL4        7

#define AP91_5G_GPIO_WDT_EN             1
#define AP91_5G_GPIO_WDT_IN             0

#define AP91_5G_GPIO_BTN_RESET          11

#define AP91_5G_KEYS_POLL_INTERVAL      20
#define AP91_5G_KEYS_DEBOUNCE_INTERVAL  (3 * AP91_5G_KEYS_POLL_INTERVAL)

#define AP91_5G_WMAC_CALDATA_OFFSET     0x1000

static struct gpio_led ap91_5g_leds_gpio[] __initdata = {
        {
                .name           = "ap91-5g:green:lan",
                .gpio           = AP91_5G_GPIO_LED_LAN,
                .active_low     = 1,
        }, {
                .name           = "ap91-5g:red:signal1",
                .gpio           = AP91_5G_GPIO_LED_SIGNAL1,
                .active_low     = 1,
        }, {
                .name           = "ap91-5g:orange:signal2",
                .gpio           = AP91_5G_GPIO_LED_SIGNAL2,
                .active_low     = 1,
        }, {
                .name           = "ap91-5g:green:signal3",
                .gpio           = AP91_5G_GPIO_LED_SIGNAL3,
                .active_low     = 1,
        }, {
                .name           = "ap91-5g:green:signal4",
                .gpio           = AP91_5G_GPIO_LED_SIGNAL4,
                .active_low     = 1,
        },
};

static struct gpio_keys_button ap91_5g_gpio_keys[] __initdata = {
        {
                .desc                   = "reset",
                .type                   = EV_KEY,
                .code                   = KEY_RESTART,
                .debounce_interval      = AP91_5G_KEYS_DEBOUNCE_INTERVAL,
                .gpio                   = AP91_5G_GPIO_BTN_RESET,
                .active_low             = 1,
        },
};

static void __init ap91_5g_setup(void)
{
        u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);

        ath79_gpio_function_setup(AR724X_GPIO_FUNC_JTAG_DISABLE,
                                  AR724X_GPIO_FUNC_ETH_SWITCH_LED4_EN);

        gpio_set_value(AP91_5G_GPIO_LED_LAN, 1);
        gpio_set_value(AP91_5G_GPIO_LED_SIGNAL3, 1);
        gpio_set_value(AP91_5G_GPIO_LED_SIGNAL4, 1);

        ath79_register_m25p80(NULL);

        ath79_register_mdio(0, 0x0);

        /* LAN */
        ath79_eth0_data.duplex = DUPLEX_FULL;
        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
        ath79_eth0_data.phy_mask = BIT(4);
        ath79_eth0_data.speed = SPEED_100;
        ath79_init_mac(ath79_eth0_data.mac_addr, art, 0);
        ath79_register_eth(0);

        ath79_register_leds_gpio(-1, ARRAY_SIZE(ap91_5g_leds_gpio),
                                 ap91_5g_leds_gpio);

        ath79_register_gpio_keys_polled(-1, AP91_5G_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(ap91_5g_gpio_keys),
                                        ap91_5g_gpio_keys);

        gpio_request_one(AP91_5G_GPIO_WDT_IN,
                         GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
                         "WDT input");

        gpio_request_one(AP91_5G_GPIO_WDT_EN,
                         GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
                         "WDT enable");

        ap91_pci_init(art + AP91_5G_WMAC_CALDATA_OFFSET, NULL);
}

MIPS_MACHINE(ATH79_MACH_AP91_5G, "AP91-5G", "ALFA Network AP91-5G",
             ap91_5g_setup);