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/*
 *  D-Link DIR-825 rev. C1 board support
 *
 *  Copyright (C) 2013 Alexander Stadler
 *
 *  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/pci.h>
#include <linux/phy.h>
#include <linux/gpio.h>
#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-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-usb.h"
#include "dev-wmac.h"
#include "machtypes.h"

#define DIR825C1_GPIO_LED_BLUE_USB		11
#define DIR825C1_GPIO_LED_ORANGE_POWER		14
#define DIR825C1_GPIO_LED_BLUE_POWER		22
#define DIR825C1_GPIO_LED_BLUE_WPS		15
#define DIR825C1_GPIO_LED_ORANGE_PLANET		19
#define DIR825C1_GPIO_LED_BLUE_PLANET		18
#define DIR825C1_GPIO_LED_WIFI_BGN		13

#define DIR825C1_GPIO_WAN_LED_ENABLE		20

#define DIR825C1_GPIO_BTN_RESET			17
#define DIR825C1_GPIO_BTN_WPS			16

#define DIR825C1_KEYS_POLL_INTERVAL		20	/* msecs */
#define DIR825C1_KEYS_DEBOUNCE_INTERVAL		(3 * DIR825C1_KEYS_POLL_INTERVAL)

#define DIR825C1_MAC0_OFFSET			0x4
#define DIR825C1_MAC1_OFFSET			0x18
#define DIR825C1_WMAC_CALDATA_OFFSET		0x1000
#define DIR825C1_PCIE_CALDATA_OFFSET		0x5000

static struct gpio_led dir825c1_leds_gpio[] __initdata = {
	{
		.name		= "d-link:blue:usb",
		.gpio		= DIR825C1_GPIO_LED_BLUE_USB,
		.active_low	= 1,
	},
	{
		.name		= "d-link:orange:power",
		.gpio		= DIR825C1_GPIO_LED_ORANGE_POWER,
		.active_low	= 1,
	},
	{
		.name		= "d-link:blue:power",
		.gpio		= DIR825C1_GPIO_LED_BLUE_POWER,
		.active_low	= 1,
	},
	{
		.name		= "d-link:blue:wps",
		.gpio		= DIR825C1_GPIO_LED_BLUE_WPS,
		.active_low	= 1,
	},
	{
		.name		= "d-link:orange:planet",
		.gpio		= DIR825C1_GPIO_LED_ORANGE_PLANET,
		.active_low	= 1,
	},
	{
		.name		= "d-link:blue:wifi_bgn",
		.gpio		= DIR825C1_GPIO_LED_WIFI_BGN,
		.active_low	= 1,
	},
};

static struct gpio_led dir835a1_leds_gpio[] __initdata = {
	{
		.name		= "d-link:orange:power",
		.gpio		= DIR825C1_GPIO_LED_ORANGE_POWER,
		.active_low	= 1,
	},
	{
		.name		= "d-link:green:power",
		.gpio		= DIR825C1_GPIO_LED_BLUE_POWER,
		.active_low	= 1,
	},
	{
		.name		= "d-link:blue:wps",
		.gpio		= DIR825C1_GPIO_LED_BLUE_WPS,
		.active_low	= 1,
	},
	{
		.name		= "d-link:orange:planet",
		.gpio		= DIR825C1_GPIO_LED_ORANGE_PLANET,
		.active_low	= 1,
	},
	{
		.name		= "d-link:green:planet",
		.gpio		= DIR825C1_GPIO_LED_BLUE_PLANET,
		.active_low	= 1,
	},
};

static struct gpio_keys_button dir825c1_gpio_keys[] __initdata = {
	{
		.desc		= "reset",
		.type		= EV_KEY,
		.code		= KEY_RESTART,
		.debounce_interval = DIR825C1_KEYS_DEBOUNCE_INTERVAL,
		.gpio		= DIR825C1_GPIO_BTN_RESET,
		.active_low	= 1,
	},
	{
		.desc		= "wps",
		.type		= EV_KEY,
		.code		= KEY_WPS_BUTTON,
		.debounce_interval = DIR825C1_KEYS_DEBOUNCE_INTERVAL,
		.gpio		= DIR825C1_GPIO_BTN_WPS,
		.active_low	= 1,
	},
};

static struct ar8327_pad_cfg dir825c1_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_led_cfg dir825c1_ar8327_led_cfg = {
	.led_ctrl0 = 0x00000000,
	.led_ctrl1 = 0xc737c737,
	.led_ctrl2 = 0x00000000,
	.led_ctrl3 = 0x00c30c00,
	.open_drain = true,
};

static struct ar8327_platform_data dir825c1_ar8327_data = {
	.pad0_cfg = &dir825c1_ar8327_pad0_cfg,
	.port0_cfg = {
		.force_link = 1,
		.speed = AR8327_PORT_SPEED_1000,
		.duplex = 1,
		.txpause = 1,
		.rxpause = 1,
	},
	.led_cfg = &dir825c1_ar8327_led_cfg,
};

static struct mdio_board_info dir825c1_mdio0_info[] = {
	{
		.bus_id = "ag71xx-mdio.0",
		.phy_addr = 0,
		.platform_data = &dir825c1_ar8327_data,
	},
};

static void __init dir825c1_generic_setup(void)
{
	u8 *mac = (u8 *) KSEG1ADDR(0x1ffe0000);
	u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
	u8 mac0[ETH_ALEN], mac1[ETH_ALEN];
	u8 wmac0[ETH_ALEN], wmac1[ETH_ALEN];

	ath79_parse_ascii_mac(mac + DIR825C1_MAC0_OFFSET, mac0);
	ath79_parse_ascii_mac(mac + DIR825C1_MAC1_OFFSET, mac1);

	ath79_register_m25p80(NULL);

	ath79_register_gpio_keys_polled(-1, DIR825C1_KEYS_POLL_INTERVAL,
					ARRAY_SIZE(dir825c1_gpio_keys),
					dir825c1_gpio_keys);

	ath79_init_mac(wmac0, mac0, 0);
	ath79_register_wmac(art + DIR825C1_WMAC_CALDATA_OFFSET, wmac0);

	ath79_init_mac(wmac1, mac1, 1);
	ap91_pci_init(art + DIR825C1_PCIE_CALDATA_OFFSET, wmac1);

	ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_RGMII_GMAC0);

	mdiobus_register_board_info(dir825c1_mdio0_info,
				    ARRAY_SIZE(dir825c1_mdio0_info));

	ath79_register_mdio(0, 0x0);

	ath79_init_mac(ath79_eth0_data.mac_addr, mac0, 0);

	/* GMAC0 is connected to an AR8327N switch */
	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
	ath79_eth0_data.phy_mask = BIT(0);
	ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
	ath79_eth0_pll_data.pll_1000 = 0x06000000;
	ath79_register_eth(0);

	ath79_register_usb();
}

static void __init dir825c1_setup(void)
{
	ath79_gpio_output_select(DIR825C1_GPIO_LED_BLUE_USB,
				 AR934X_GPIO_OUT_GPIO);

	gpio_request_one(DIR825C1_GPIO_WAN_LED_ENABLE,
			 GPIOF_OUT_INIT_LOW, "WAN LED enable");

	ath79_register_leds_gpio(-1, ARRAY_SIZE(dir825c1_leds_gpio),
				 dir825c1_leds_gpio);

	ap9x_pci_setup_wmac_led_pin(0, 13);
	ap9x_pci_setup_wmac_led_pin(1, 32);

	dir825c1_generic_setup();
}

static void __init dir835a1_setup(void)
{
	dir825c1_ar8327_data.led_cfg = NULL;

	ath79_register_leds_gpio(-1, ARRAY_SIZE(dir835a1_leds_gpio),
				 dir835a1_leds_gpio);

	dir825c1_generic_setup();
}

MIPS_MACHINE(ATH79_MACH_DIR_825_C1, "DIR-825-C1",
	     "D-Link DIR-825 rev. C1",
	     dir825c1_setup);

MIPS_MACHINE(ATH79_MACH_DIR_835_A1, "DIR-835-A1",
	     "D-Link DIR-835 rev. A1",
	     dir835a1_setup);