/*
 *  OpenMesh OM5P-ACv2 support
 *
 *  Copyright (C) 2013 Marek Lindner <marek@open-mesh.com>
 *  Copyright (C) 2014-2016 Sven Eckelmann <sven@open-mesh.com>
 *  Copyright (C) 2015 Open-Mesh - Jim Collar <jim.collar@eqware.net>
 *
 *  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/version.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,4,0)
#include <linux/mdio-gpio.h>
#else
#include <linux/platform_data/mdio-gpio.h> 
#endif
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/i2c-gpio.h>
#include <linux/platform_data/phy-at803x.h>

#include <asm/mach-ath79/ar71xx_regs.h>
#include <asm/mach-ath79/ath79.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-wmac.h"
#include "machtypes.h"
#include "pci.h"

#define OM5PACV2_GPIO_LED_POWER	14
#define OM5PACV2_GPIO_LED_GREEN	13
#define OM5PACV2_GPIO_LED_RED	23
#define OM5PACV2_GPIO_LED_YELLOW	15
#define OM5PACV2_GPIO_BTN_RESET	1
#define OM5PACV2_GPIO_I2C_SCL	18
#define OM5PACV2_GPIO_I2C_SDA	19
#define OM5PACV2_GPIO_PA_DCDC	2
#define OM5PACV2_GPIO_PA_HIGH	16

#define OM5PACV2_KEYS_POLL_INTERVAL	20	/* msecs */
#define OM5PACV2_KEYS_DEBOUNCE_INTERVAL	(3 * OM5PACV2_KEYS_POLL_INTERVAL)

#define OM5PACV2_WMAC_CALDATA_OFFSET	0x1000

static struct gpio_led om5pacv2_leds_gpio[] __initdata = {
	{
		.name		= "om5pac:blue:power",
		.gpio		= OM5PACV2_GPIO_LED_POWER,
		.active_low	= 1,
	}, {
		.name		= "om5pac:red:wifi",
		.gpio		= OM5PACV2_GPIO_LED_RED,
		.active_low	= 1,
	}, {
		.name		= "om5pac:yellow:wifi",
		.gpio		= OM5PACV2_GPIO_LED_YELLOW,
		.active_low	= 1,
	}, {
		.name		= "om5pac:green:wifi",
		.gpio		= OM5PACV2_GPIO_LED_GREEN,
		.active_low	= 1,
	}
};

static struct gpio_keys_button om5pacv2_gpio_keys[] __initdata = {
	{
		.desc		= "reset",
		.type		= EV_KEY,
		.code		= KEY_RESTART,
		.debounce_interval = OM5PACV2_KEYS_DEBOUNCE_INTERVAL,
		.gpio		= OM5PACV2_GPIO_BTN_RESET,
		.active_low	= 1,
	}
};

static struct i2c_gpio_platform_data om5pacv2_i2c_device_platdata = {
	.sda_pin		= OM5PACV2_GPIO_I2C_SDA,
	.scl_pin		= OM5PACV2_GPIO_I2C_SCL,
	.udelay			= 10,
	.sda_is_open_drain	= 1,
	.scl_is_open_drain	= 1,
};

static struct platform_device om5pacv2_i2c_device = {
	.name		= "i2c-gpio",
	.id		= 0,
	.dev		= {
		.platform_data	= &om5pacv2_i2c_device_platdata,
	},
};

static struct i2c_board_info om5pacv2_i2c_devs[] __initdata = {
	{
		I2C_BOARD_INFO("tmp423", 0x4e),
	},
};

static struct flash_platform_data om5pacv2_flash_data = {
	.type = "mx25l12805d",
};

static struct at803x_platform_data om5pacv2_an_at803x_data = {
	.disable_smarteee = 1,
	.enable_rgmii_rx_delay = 1,
	.enable_rgmii_tx_delay = 1,
};

static struct at803x_platform_data om5pacv2_an_at8031_data = {
	.disable_smarteee = 1,
	.enable_rgmii_rx_delay = 1,
	.enable_rgmii_tx_delay = 1,
};

static struct mdio_board_info om5pacv2_an_mdio0_info[] = {
	{
		.bus_id = "ag71xx-mdio.0",
		.phy_addr = 4,
		.platform_data = &om5pacv2_an_at803x_data,
	},
	{
		.bus_id = "ag71xx-mdio.1",
		.phy_addr = 1,
		.platform_data = &om5pacv2_an_at8031_data,
	},
};

static void __init om5p_acv2_setup_qca955x_eth_cfg(u32 mask,
						   unsigned int rxd,
						   unsigned int rxdv,
						   unsigned int txd,
						   unsigned int txe)
{
	void __iomem *base;
	u32 t;

	base = ioremap(QCA955X_GMAC_BASE, QCA955X_GMAC_SIZE);

	t = mask;
	t |= rxd << QCA955X_ETH_CFG_RXD_DELAY_SHIFT;
	t |= rxdv << QCA955X_ETH_CFG_RDV_DELAY_SHIFT;
	t |= txd << QCA955X_ETH_CFG_TXD_DELAY_SHIFT;
	t |= txe << QCA955X_ETH_CFG_TXE_DELAY_SHIFT;

	__raw_writel(t, base + QCA955X_GMAC_REG_ETH_CFG);

	iounmap(base);
}

static void __init om5p_acv2_setup(void)
{
	u8 *art = (u8 *)KSEG1ADDR(0x1fff0000);
	u8 mac[6];

	/* power amplifier high power, 4.2V at RFFM4203/4503 instead of 3.3 */
	ath79_gpio_function_enable(QCA955X_GPIO_FUNC_JTAG_DISABLE);
	ath79_gpio_output_select(OM5PACV2_GPIO_PA_DCDC, QCA955X_GPIO_OUT_GPIO);
	ath79_gpio_output_select(OM5PACV2_GPIO_PA_HIGH, QCA955X_GPIO_OUT_GPIO);
	gpio_request_one(OM5PACV2_GPIO_PA_DCDC, GPIOF_OUT_INIT_HIGH,
			 "PA DC/DC");
	gpio_request_one(OM5PACV2_GPIO_PA_HIGH, GPIOF_OUT_INIT_HIGH, "PA HIGH");

	/* temperature sensor */
	platform_device_register(&om5pacv2_i2c_device);
	i2c_register_board_info(0, om5pacv2_i2c_devs,
				ARRAY_SIZE(om5pacv2_i2c_devs));

	ath79_register_m25p80(&om5pacv2_flash_data);
	ath79_register_leds_gpio(-1, ARRAY_SIZE(om5pacv2_leds_gpio),
				 om5pacv2_leds_gpio);
	ath79_register_gpio_keys_polled(-1, OM5PACV2_KEYS_POLL_INTERVAL,
					ARRAY_SIZE(om5pacv2_gpio_keys),
					om5pacv2_gpio_keys);

	ath79_init_mac(mac, art, 0x02);
	ath79_register_wmac(art + OM5PACV2_WMAC_CALDATA_OFFSET, mac);

	om5p_acv2_setup_qca955x_eth_cfg(QCA955X_ETH_CFG_RGMII_EN, 2, 2, 0, 0);
	ath79_register_mdio(0, 0x0);
	ath79_register_mdio(1, 0x0);

	mdiobus_register_board_info(om5pacv2_an_mdio0_info,
				    ARRAY_SIZE(om5pacv2_an_mdio0_info));

	ath79_init_mac(ath79_eth0_data.mac_addr, art, 0x00);
	ath79_init_mac(ath79_eth1_data.mac_addr, art, 0x01);

	/* GMAC0 is connected to the PHY4 */
	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
	ath79_eth0_data.mii_bus_dev = &ath79_mdio0_device.dev;
	ath79_eth0_data.phy_mask = BIT(4);
	ath79_eth0_pll_data.pll_1000 = 0x82000101;
	ath79_eth0_pll_data.pll_100 = 0x80000101;
	ath79_eth0_pll_data.pll_10 = 0x80001313;
	ath79_register_eth(0);

	/* GMAC1 is connected to MDIO1 in SGMII mode */
	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_SGMII;
	ath79_eth1_data.mii_bus_dev = &ath79_mdio1_device.dev;
	ath79_eth1_data.phy_mask = BIT(1);
	ath79_eth1_pll_data.pll_1000 = 0x03000101;
	ath79_eth1_pll_data.pll_100 = 0x80000101;
	ath79_eth1_pll_data.pll_10 = 0x80001313;
	ath79_eth1_data.speed = SPEED_1000;
	ath79_eth1_data.duplex = DUPLEX_FULL;
	ath79_register_eth(1);

	ath79_register_pci();
}

MIPS_MACHINE(ATH79_MACH_OM5P_ACv2, "OM5P-ACv2", "OpenMesh OM5P ACv2", om5p_acv2_setup);
