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/*
 *  ALFA Network AP120C board support
 *
 *  Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
 *  Copyright (C) 2016 Luka Perkov <luka@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/init.h>
#include <linux/bitops.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/ar8216_platform.h>
#include <linux/ath9k_platform.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-spi.h"
#include "dev-ap9x-pci.h"
#include "dev-wmac.h"
#include "machtypes.h"

#define ALFA_AP120C_GPIO_LED    0

#define ALFA_AP120C_GPIO_BUTTON_WIFI    16

#define ALFA_AP120C_GPIO_WATCH_DOG      20

#define ALFA_AP120C_KEYS_POLL_INTERVAL          20      /* msecs */
#define ALFA_AP120C_KEYS_DEBOUNCE_INTERVAL      (3 * ALFA_AP120C_KEYS_POLL_INTERVAL)

#define ALFA_AP120C_MAC_OFFSET          0x1002
#define ALFA_AP120C_CAL0_OFFSET         0x1000

static struct gpio_keys_button alfa_ap120c_gpio_keys[] __initdata = {
        {
                .desc           = "Wireless button",
                .type           = EV_KEY,
                .code           = KEY_RFKILL,
                .debounce_interval = ALFA_AP120C_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = ALFA_AP120C_GPIO_BUTTON_WIFI,
                .active_low     = 1,
        }
};

static struct gpio_led alfa_ap120c_leds_gpio[] __initdata = {
        {
                        .name           = "ap120c:red:wlan",
                        .gpio           = ALFA_AP120C_GPIO_LED,
                        .active_low = 0,
        }
};

static struct ar8327_pad_cfg ap120c_ar8327_pad0_cfg = {
        .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_platform_data ap120c_ar8327_data = {
        .pad0_cfg = &ap120c_ar8327_pad0_cfg,
        .port0_cfg = {
                .force_link = 1,
                .speed = AR8327_PORT_SPEED_1000,
                .duplex = 1,
                .txpause = 1,
                .rxpause = 1,
        },
};

static struct mdio_board_info ap120c_mdio0_info[] = {
        {
                .bus_id = "ag71xx-mdio.0",
                .mdio_addr = 0,
                .platform_data = &ap120c_ar8327_data,
        },
};

static struct flash_platform_data flash __initdata = { NULL, NULL, 0 };

#define ALFA_AP120C_LAN_PHYMASK         BIT(5)
#define ALFA_AP120C_MDIO_PHYMASK        ALFA_AP120C_LAN_PHYMASK

static void __init alfa_ap120c_init(void)
{
        u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
        u8 mac[ETH_ALEN];

        struct ath9k_platform_data *pdata;

        ath79_register_leds_gpio(-1, ARRAY_SIZE(alfa_ap120c_leds_gpio),
                                                         alfa_ap120c_leds_gpio);
        ath79_register_gpio_keys_polled(-1, ALFA_AP120C_KEYS_POLL_INTERVAL,
                                                                        ARRAY_SIZE(alfa_ap120c_gpio_keys),
                                                                        alfa_ap120c_gpio_keys);

        ath79_gpio_function_enable(AR71XX_GPIO_FUNC_SPI_CS1_EN |
                                                           AR71XX_GPIO_FUNC_SPI_CS2_EN);

        ath79_register_m25p80_multi(&flash);

        ath79_init_mac(mac, art + ALFA_AP120C_MAC_OFFSET, 1);
        ath79_register_wmac(art + ALFA_AP120C_CAL0_OFFSET, mac);

        ath79_init_mac(mac, art + ALFA_AP120C_MAC_OFFSET, 2);
        ap91_pci_init(NULL, mac);
        pdata = ap9x_pci_get_wmac_data(0);
        if (!pdata) {
                pr_err("ap120c: unable to get address of wlan data\n");
                return;
        }
        pdata->use_eeprom = true;

        ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0 |
                                                           BIT(15) | BIT(17) | BIT(19) | BIT(21));

        ath79_register_mdio(0, 0x0);

        ath79_init_mac(ath79_eth0_data.mac_addr, art + ALFA_AP120C_MAC_OFFSET, 0);

        mdiobus_register_board_info(ap120c_mdio0_info, ARRAY_SIZE(ap120c_mdio0_info));

        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
        ath79_eth0_data.phy_mask = ALFA_AP120C_LAN_PHYMASK;

        ath79_eth0_pll_data.pll_1000 = 0x42000000;
        ath79_eth0_pll_data.pll_10 = 0x00001313;

        ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;

        ath79_register_eth(0);
}

MIPS_MACHINE(ATH79_MACH_ALFA_AP120C, "ALFA-AP120C", "ALFA Network AP120C",
                         alfa_ap120c_init);