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/*
 * GainStrong Oolite V5.2 module and development 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-eth.h"
#include "dev-gpio-buttons.h"
#include "dev-leds-gpio.h"
#include "dev-m25p80.h"
#include "dev-usb.h"
#include "dev-wmac.h"
#include "machtypes.h"
#include "pci.h"

#define GS_OOLITE_V5_2_DEV_GPIO_BTN_RESET       17
#define GS_OOLITE_V5_2_DEV_GPIO_LED_SYSTEM      13

#define GS_KEYS_POLL_INTERVAL           20 /* msec */
#define GS_KEYS_DEBOUNCE_INTERVAL       (3 * GS_KEYS_POLL_INTERVAL)

#define GS_OOLITE_V5_2_WMAC_CALDATA_OFFSET      0x1000

static const char *gs_oolite_v5_2_part_probes[] = {
        "tp-link",
        NULL,
};

static struct flash_platform_data gs_oolite_v5_2_flash_data = {
        .part_probes = gs_oolite_v5_2_part_probes,
};

static struct gpio_led gs_oolite_v5_2_dev_gpio_leds[] __initdata = {
        {
                .name           = "oolite-v5.2-dev:blue:system",
                .gpio           = GS_OOLITE_V5_2_DEV_GPIO_LED_SYSTEM,
                .active_low     = 0,
        },
};

static struct gpio_keys_button gs_oolite_v5_2_dev_gpio_keys[] __initdata = {
        {
                .desc                   = "reset",
                .type                   = EV_KEY,
                .code                   = KEY_RESTART,
                .debounce_interval      = GS_KEYS_DEBOUNCE_INTERVAL,
                .gpio                   = GS_OOLITE_V5_2_DEV_GPIO_BTN_RESET,
                .active_low             = 1,
        },
};

static void __init gs_oolite_v5_2_setup(void)
{
        u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);

        ath79_register_m25p80(&gs_oolite_v5_2_flash_data);

        ath79_setup_ar933x_phy4_switch(false, false);

        ath79_register_mdio(0, 0x0);

        ath79_switch_data.phy4_mii_en = 1;
        ath79_switch_data.phy_poll_mask |= BIT(4);

        /* LAN */
        ath79_eth1_data.duplex = DUPLEX_FULL;
        ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
        ath79_init_mac(ath79_eth1_data.mac_addr, art + 6, 0);
        ath79_register_eth(1);

        /* WAN */
        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_pci();
        ath79_register_usb();
        ath79_register_wmac(art + GS_OOLITE_V5_2_WMAC_CALDATA_OFFSET, NULL);
}

static void __init gs_oolite_v5_2_dev_setup(void)
{
        gs_oolite_v5_2_setup();

        ath79_register_leds_gpio(-1, ARRAY_SIZE(gs_oolite_v5_2_dev_gpio_leds),
                                 gs_oolite_v5_2_dev_gpio_leds);

        ath79_register_gpio_keys_polled(-1, GS_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(gs_oolite_v5_2_dev_gpio_keys),
                                        gs_oolite_v5_2_dev_gpio_keys);
}

MIPS_MACHINE(ATH79_MACH_GS_OOLITE_V5_2, "OOLITE-V5-2",
             "GainStrong Oolite V5.2", gs_oolite_v5_2_setup);

MIPS_MACHINE(ATH79_MACH_GS_OOLITE_V5_2_DEV, "OOLITE-V5-2-DEV",
             "GainStrong Oolite V5.2-Dev", gs_oolite_v5_2_dev_setup);