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/*
 * devolo dLAN pro 500 Wireless+ support
 *
 * Copyright (c) 2013-2015 devolo AG
 * Copyright (c) 2011-2012 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/pci.h>
#include <linux/phy.h>
#include <linux/platform_device.h>
#include <linux/ath9k_platform.h>
#include <linux/ar8216_platform.h>
#include <linux/gpio.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 "dev-spi.h"
#include "dev-wmac.h"
#include "machtypes.h"

#define DLAN_PRO_500_WP_GPIO_DLAN_POWER_ENABLE          13
#define DLAN_PRO_500_WP_GPIO_DLAN_LED_ENABLE            17
#define DLAN_PRO_500_WP_GPIO_LED_WLAN_5G                11
#define DLAN_PRO_500_WP_GPIO_LED_WLAN_2G                12
#define DLAN_PRO_500_WP_GPIO_LED_STATUS                 16
#define DLAN_PRO_500_WP_GPIO_LED_ETH                    14

#define DLAN_PRO_500_WP_GPIO_BTN_WPS                    20
#define DLAN_PRO_500_WP_GPIO_BTN_WLAN                   22
#define DLAN_PRO_500_WP_GPIO_BTN_DLAN                   21
#define DLAN_PRO_500_WP_GPIO_BTN_RESET                  4

#define DLAN_PRO_500_WP_KEYS_POLL_INTERVAL              20      /* msecs */
#define DLAN_PRO_500_WP_KEYS_DEBOUNCE_INTERVAL          (3 * DLAN_PRO_500_WP_KEYS_POLL_INTERVAL)

#define DLAN_PRO_500_WP_ART_ADDRESS                     0x1fff0000
#define DLAN_PRO_500_WP_CALDATA_OFFSET                  0x1000
#define DLAN_PRO_500_WP_MAC_ADDRESS_OFFSET              0x1002
#define DLAN_PRO_500_WP_PCIE_CALDATA_OFFSET             0x5000

static struct gpio_led dlan_pro_500_wp_leds_gpio[] __initdata = {
        {
                .name           = "devolo:green:status",
                .gpio           = DLAN_PRO_500_WP_GPIO_LED_STATUS,
                .active_low     = 1,
        },
        {
                .name           = "devolo:green:eth",
                .gpio           = DLAN_PRO_500_WP_GPIO_LED_ETH,
                .active_low     = 1,
        },
        {
                .name           = "devolo:blue:wlan-5g",
                .gpio           = DLAN_PRO_500_WP_GPIO_LED_WLAN_5G,
                .active_low     = 1,
        },
        {
                .name           = "devolo:green:wlan-2g",
                .gpio           = DLAN_PRO_500_WP_GPIO_LED_WLAN_2G,
                .active_low     = 1,
        }
};

static struct gpio_keys_button dlan_pro_500_wp_gpio_keys[] __initdata = {
        {
                .desc           = "dLAN button",
                .type           = EV_KEY,
                .code           = BTN_0,
                .debounce_interval = DLAN_PRO_500_WP_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = DLAN_PRO_500_WP_GPIO_BTN_DLAN,
                .active_low     = 0,
        },
        {
                .desc           = "WPS button",
                .type           = EV_KEY,
                .code           = KEY_WPS_BUTTON,
                .debounce_interval = DLAN_PRO_500_WP_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = DLAN_PRO_500_WP_GPIO_BTN_WPS,
                .active_low     = 0,
        },
        {
                .desc           = "WLAN button",
                .type           = EV_KEY,
                .code           = BTN_2,
                .debounce_interval = DLAN_PRO_500_WP_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = DLAN_PRO_500_WP_GPIO_BTN_WLAN,
                .active_low     = 1,
        },
        {
                .desc           = "Reset button",
                .type           = EV_KEY,
                .code           = KEY_RESTART,
                .debounce_interval = DLAN_PRO_500_WP_KEYS_DEBOUNCE_INTERVAL,
                .gpio           = DLAN_PRO_500_WP_GPIO_BTN_RESET,
                .active_low     = 1,
        }
};

static struct ar8327_pad_cfg dlan_pro_500_wp_ar8327_pad0_cfg = {
        .mode = AR8327_PAD_PHY_RGMII,
        .txclk_delay_en = false,
        .rxclk_delay_en = false,
        .txclk_delay_sel = AR8327_CLK_DELAY_SEL0,
        .rxclk_delay_sel = AR8327_CLK_DELAY_SEL0,
};

static struct ar8327_led_cfg dlan_pro_500_wp_ar8327_led_cfg = {
        .led_ctrl0 = 0x00000000,
        .led_ctrl1 = 0xc737c737,
        .led_ctrl2 = 0x00000000,
        .led_ctrl3 = 0x00c30c00,
        .open_drain = true,
};

static struct ar8327_platform_data dlan_pro_500_wp_ar8327_data = {
        .pad0_cfg = &dlan_pro_500_wp_ar8327_pad0_cfg,
        .port0_cfg = {
                .force_link = 1,
                .speed = AR8327_PORT_SPEED_1000,
                .duplex = 1,
                .txpause = 0,
                .rxpause = 0,
        },
        .led_cfg = &dlan_pro_500_wp_ar8327_led_cfg,
};

static struct mdio_board_info dlan_pro_500_wp_mdio0_info[] = {
        {
                .bus_id = "ag71xx-mdio.0",
                .mdio_addr = 0,
                .platform_data = &dlan_pro_500_wp_ar8327_data,
        },
};

static void __init dlan_pro_500_wp_setup(void)
{
        u8 *art = (u8 *) KSEG1ADDR(DLAN_PRO_500_WP_ART_ADDRESS);
        u8 *cal = art + DLAN_PRO_500_WP_CALDATA_OFFSET;
        u8 *wifi_mac = art + DLAN_PRO_500_WP_MAC_ADDRESS_OFFSET;

        ath79_register_m25p80(NULL);

        ath79_register_leds_gpio(-1, ARRAY_SIZE(dlan_pro_500_wp_leds_gpio),
                                 dlan_pro_500_wp_leds_gpio);

        ath79_register_gpio_keys_polled(-1, DLAN_PRO_500_WP_KEYS_POLL_INTERVAL,
                                        ARRAY_SIZE(dlan_pro_500_wp_gpio_keys),
                                        dlan_pro_500_wp_gpio_keys);

        gpio_request_one(DLAN_PRO_500_WP_GPIO_DLAN_POWER_ENABLE,
                         GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
                         "PLC power");
        gpio_request_one(DLAN_PRO_500_WP_GPIO_DLAN_LED_ENABLE,
                         GPIOF_OUT_INIT_LOW | GPIOF_EXPORT_DIR_FIXED,
                         "PLC LEDs");

        ath79_register_wmac(cal, wifi_mac);

        ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);

        ath79_register_mdio(1, 0x0);
        ath79_register_mdio(0, 0x0);

        mdiobus_register_board_info(dlan_pro_500_wp_mdio0_info,
                                    ARRAY_SIZE(dlan_pro_500_wp_mdio0_info));

        /* GMAC0 is connected to a AR7400 PLC in PHY mode */
        ath79_init_mac(ath79_eth0_data.mac_addr, wifi_mac, 2);
        ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
        ath79_eth0_pll_data.pll_1000 = 0x0e000000;
        ath79_eth0_data.speed = SPEED_1000;
        ath79_eth0_data.duplex = DUPLEX_FULL;
        ath79_register_eth(0);

        /* GMAC1 is connected to the internal switch */
        ath79_init_mac(ath79_eth1_data.mac_addr, wifi_mac, 1);
        ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
        ath79_eth1_data.speed = SPEED_1000;
        ath79_eth1_data.duplex = DUPLEX_FULL;
        ath79_register_eth(1);
}

MIPS_MACHINE(ATH79_MACH_DLAN_PRO_500_WP, "dLAN-pro-500-wp", "devolo dLAN pro 500 Wireless+",
             dlan_pro_500_wp_setup);