/*
 * Board support file for OMAP4430 based PandaBoard.
 *
 * Copyright (C) 2010 Texas Instruments
 *
 * Author: David Anders <x0132446@ti.com>
 *
 * Based on mach-omap2/board-4430sdp.c
 *
 * Author: Santosh Shilimkar <santosh.shilimkar@ti.com>
 *
 * Based on mach-omap2/board-3430sdp.c
 *
 * 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/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/leds.h>
#include <linux/gpio.h>
#include <linux/usb/otg.h>
#include <linux/i2c/twl.h>
#include <linux/mfd/twl6040.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/fixed.h>
#include <linux/ti_wilink_st.h>
#include <linux/usb/musb.h>
#include <linux/wl12xx.h>
#include <linux/platform_data/omap-abe-twl6040.h>

#include <asm/hardware/gic.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>

#include "common.h"
#include "soc.h"
#include "mmc.h"
#include "hsmmc.h"
#include "control.h"
#include "mux.h"
#include "common-board-devices.h"
#include "dss-common.h"

#define GPIO_HUB_POWER		1
#define GPIO_HUB_NRESET		62
#define GPIO_WIFI_PMENA		43
#define GPIO_WIFI_IRQ		53

/* wl127x BT, FM, GPS connectivity chip */
static struct ti_st_plat_data wilink_platform_data = {
	.nshutdown_gpio	= 46,
	.dev_name	= "/dev/ttyO1",
	.flow_cntrl	= 1,
	.baud_rate	= 3000000,
	.chip_enable	= NULL,
	.suspend	= NULL,
	.resume		= NULL,
};

static struct platform_device wl1271_device = {
	.name	= "kim",
	.id	= -1,
	.dev	= {
		.platform_data	= &wilink_platform_data,
	},
};

static struct gpio_led gpio_leds[] = {
	{
		.name			= "pandaboard::status1",
		.default_trigger	= "heartbeat",
		.gpio			= 7,
	},
	{
		.name			= "pandaboard::status2",
		.default_trigger	= "mmc0",
		.gpio			= 8,
	},
};

static struct gpio_led_platform_data gpio_led_info = {
	.leds		= gpio_leds,
	.num_leds	= ARRAY_SIZE(gpio_leds),
};

static struct platform_device leds_gpio = {
	.name	= "leds-gpio",
	.id	= -1,
	.dev	= {
		.platform_data	= &gpio_led_info,
	},
};

static struct omap_abe_twl6040_data panda_abe_audio_data = {
	/* Audio out */
	.has_hs		= ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
	/* HandsFree through expansion connector */
	.has_hf		= ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
	/* PandaBoard: FM TX, PandaBoardES: can be connected to audio out */
	.has_aux	= ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
	/* PandaBoard: FM RX, PandaBoardES: audio in */
	.has_afm	= ABE_TWL6040_LEFT | ABE_TWL6040_RIGHT,
	/* No jack detection. */
	.jack_detection	= 0,
	/* MCLK input is 38.4MHz */
	.mclk_freq	= 38400000,

};

static struct platform_device panda_abe_audio = {
	.name		= "omap-abe-twl6040",
	.id		= -1,
	.dev = {
		.platform_data = &panda_abe_audio_data,
	},
};

static struct platform_device panda_hdmi_audio_codec = {
	.name	= "hdmi-audio-codec",
	.id	= -1,
};

static struct platform_device btwilink_device = {
	.name	= "btwilink",
	.id	= -1,
};

static struct platform_device *panda_devices[] __initdata = {
	&leds_gpio,
	&wl1271_device,
	&panda_abe_audio,
	&panda_hdmi_audio_codec,
	&btwilink_device,
};

static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
	.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
	.port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
	.port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
	.phy_reset  = false,
	.reset_gpio_port[0]  = -EINVAL,
	.reset_gpio_port[1]  = -EINVAL,
	.reset_gpio_port[2]  = -EINVAL
};

static struct gpio panda_ehci_gpios[] __initdata = {
	{ GPIO_HUB_POWER,	GPIOF_OUT_INIT_LOW,  "hub_power"  },
	{ GPIO_HUB_NRESET,	GPIOF_OUT_INIT_LOW,  "hub_nreset" },
};

static void __init omap4_ehci_init(void)
{
	int ret;
	struct clk *phy_ref_clk;

	/* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
	phy_ref_clk = clk_get(NULL, "auxclk3_ck");
	if (IS_ERR(phy_ref_clk)) {
		pr_err("Cannot request auxclk3\n");
		return;
	}
	clk_set_rate(phy_ref_clk, 19200000);
	clk_prepare_enable(phy_ref_clk);

	/* disable the power to the usb hub prior to init and reset phy+hub */
	ret = gpio_request_array(panda_ehci_gpios,
				 ARRAY_SIZE(panda_ehci_gpios));
	if (ret) {
		pr_err("Unable to initialize EHCI power/reset\n");
		return;
	}

	gpio_export(GPIO_HUB_POWER, 0);
	gpio_export(GPIO_HUB_NRESET, 0);
	gpio_set_value(GPIO_HUB_NRESET, 1);

	usbhs_init(&usbhs_bdata);

	/* enable power to hub */
	gpio_set_value(GPIO_HUB_POWER, 1);
}

static struct omap_musb_board_data musb_board_data = {
	.interface_type		= MUSB_INTERFACE_UTMI,
	.mode			= MUSB_OTG,
	.power			= 100,
};

static struct omap2_hsmmc_info mmc[] = {
	{
		.mmc		= 1,
		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
		.gpio_wp	= -EINVAL,
		.gpio_cd	= -EINVAL,
	},
	{
		.name		= "wl1271",
		.mmc		= 5,
		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
		.gpio_wp	= -EINVAL,
		.gpio_cd	= -EINVAL,
		.ocr_mask	= MMC_VDD_165_195,
		.nonremovable	= true,
	},
	{}	/* Terminator */
};

static struct regulator_consumer_supply omap4_panda_vmmc5_supply[] = {
	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.4"),
};

static struct regulator_init_data panda_vmmc5 = {
	.constraints = {
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies = ARRAY_SIZE(omap4_panda_vmmc5_supply),
	.consumer_supplies = omap4_panda_vmmc5_supply,
};

static struct fixed_voltage_config panda_vwlan = {
	.supply_name = "vwl1271",
	.microvolts = 1800000, /* 1.8V */
	.gpio = GPIO_WIFI_PMENA,
	.startup_delay = 70000, /* 70msec */
	.enable_high = 1,
	.enabled_at_boot = 0,
	.init_data = &panda_vmmc5,
};

static struct platform_device omap_vwlan_device = {
	.name		= "reg-fixed-voltage",
	.id		= 1,
	.dev = {
		.platform_data = &panda_vwlan,
	},
};

static struct wl12xx_platform_data omap_panda_wlan_data  __initdata = {
	.board_ref_clock = WL12XX_REFCLOCK_38, /* 38.4 MHz */
};

static struct twl6040_codec_data twl6040_codec = {
	/* single-step ramp for headset and handsfree */
	.hs_left_step	= 0x0f,
	.hs_right_step	= 0x0f,
	.hf_left_step	= 0x1d,
	.hf_right_step	= 0x1d,
};

static struct twl6040_platform_data twl6040_data = {
	.codec		= &twl6040_codec,
	.audpwron_gpio	= 127,
};

static struct i2c_board_info __initdata panda_i2c_1_boardinfo[] = {
	{
		I2C_BOARD_INFO("twl6040", 0x4b),
		.irq = 119 + OMAP44XX_IRQ_GIC_START,
		.platform_data = &twl6040_data,
	},
};

/* Panda board uses the common PMIC configuration */
static struct twl4030_platform_data omap4_panda_twldata;

/*
 * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
 * is connected as I2C slave device, and can be accessed at address 0x50
 */
static struct i2c_board_info __initdata panda_i2c_eeprom[] = {
	{
		I2C_BOARD_INFO("eeprom", 0x50),
	},
};

static int __init omap4_panda_i2c_init(void)
{
	omap4_pmic_get_config(&omap4_panda_twldata, TWL_COMMON_PDATA_USB,
			TWL_COMMON_REGULATOR_VDAC |
			TWL_COMMON_REGULATOR_VAUX2 |
			TWL_COMMON_REGULATOR_VAUX3 |
			TWL_COMMON_REGULATOR_VMMC |
			TWL_COMMON_REGULATOR_VPP |
			TWL_COMMON_REGULATOR_VANA |
			TWL_COMMON_REGULATOR_VCXIO |
			TWL_COMMON_REGULATOR_VUSB |
			TWL_COMMON_REGULATOR_CLK32KG |
			TWL_COMMON_REGULATOR_V1V8 |
			TWL_COMMON_REGULATOR_V2V1);
	omap4_pmic_init("twl6030", &omap4_panda_twldata, panda_i2c_1_boardinfo,
			ARRAY_SIZE(panda_i2c_1_boardinfo));
	omap_register_i2c_bus(2, 400, NULL, 0);
	/*
	 * Bus 3 is attached to the DVI port where devices like the pico DLP
	 * projector don't work reliably with 400kHz
	 */
	omap_register_i2c_bus(3, 100, panda_i2c_eeprom,
					ARRAY_SIZE(panda_i2c_eeprom));
	omap_register_i2c_bus(4, 400, NULL, 0);
	return 0;
}

#ifdef CONFIG_OMAP_MUX
static struct omap_board_mux board_mux[] __initdata = {
	/* WLAN IRQ - GPIO 53 */
	OMAP4_MUX(GPMC_NCS3, OMAP_MUX_MODE3 | OMAP_PIN_INPUT),
	/* WLAN POWER ENABLE - GPIO 43 */
	OMAP4_MUX(GPMC_A19, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
	/* WLAN SDIO: MMC5 CMD */
	OMAP4_MUX(SDMMC5_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	/* WLAN SDIO: MMC5 CLK */
	OMAP4_MUX(SDMMC5_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	/* WLAN SDIO: MMC5 DAT[0-3] */
	OMAP4_MUX(SDMMC5_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	/* gpio 0 - TFP410 PD */
	OMAP4_MUX(KPD_COL1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE3),
	/* dispc2_data23 */
	OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data22 */
	OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data21 */
	OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data20 */
	OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data19 */
	OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data18 */
	OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data15 */
	OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data14 */
	OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data13 */
	OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data12 */
	OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data11 */
	OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data10 */
	OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data9 */
	OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data16 */
	OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data17 */
	OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_hsync */
	OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_pclk */
	OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_vsync */
	OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_de */
	OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data8 */
	OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data7 */
	OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data6 */
	OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data5 */
	OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data4 */
	OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data3 */
	OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data2 */
	OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data1 */
	OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* dispc2_data0 */
	OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
	/* NIRQ2 for twl6040 */
	OMAP4_MUX(SYS_NIRQ2, OMAP_MUX_MODE0 |
		  OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE),
	/* GPIO_127 for twl6040 */
	OMAP4_MUX(HDQ_SIO, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
	/* McPDM */
	OMAP4_MUX(ABE_PDM_UL_DATA, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
	OMAP4_MUX(ABE_PDM_DL_DATA, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
	OMAP4_MUX(ABE_PDM_FRAME, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
	OMAP4_MUX(ABE_PDM_LB_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
	OMAP4_MUX(ABE_CLKS, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
	/* McBSP1 */
	OMAP4_MUX(ABE_MCBSP1_CLKX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),
	OMAP4_MUX(ABE_MCBSP1_DR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
	OMAP4_MUX(ABE_MCBSP1_DX, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT |
		  OMAP_PULL_ENA),
	OMAP4_MUX(ABE_MCBSP1_FSX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT),

	/* UART2 - BT/FM/GPS shared transport */
	OMAP4_MUX(UART2_CTS,	OMAP_PIN_INPUT	| OMAP_MUX_MODE0),
	OMAP4_MUX(UART2_RTS,	OMAP_PIN_OUTPUT	| OMAP_MUX_MODE0),
	OMAP4_MUX(UART2_RX,	OMAP_PIN_INPUT	| OMAP_MUX_MODE0),
	OMAP4_MUX(UART2_TX,	OMAP_PIN_OUTPUT	| OMAP_MUX_MODE0),

	{ .reg_offset = OMAP_MUX_TERMINATOR },
};

#else
#define board_mux	NULL
#endif


static void omap4_panda_init_rev(void)
{
	if (cpu_is_omap443x()) {
		/* PandaBoard 4430 */
		/* ASoC audio configuration */
		panda_abe_audio_data.card_name = "PandaBoard";
		panda_abe_audio_data.has_hsmic = 1;
	} else {
		/* PandaBoard ES */
		/* ASoC audio configuration */
		panda_abe_audio_data.card_name = "PandaBoardES";
	}
}

static void __init omap4_panda_init(void)
{
	int package = OMAP_PACKAGE_CBS;
	int ret;

	if (omap_rev() == OMAP4430_REV_ES1_0)
		package = OMAP_PACKAGE_CBL;
	omap4_mux_init(board_mux, NULL, package);

	omap_panda_wlan_data.irq = gpio_to_irq(GPIO_WIFI_IRQ);
	ret = wl12xx_set_platform_data(&omap_panda_wlan_data);
	if (ret)
		pr_err("error setting wl12xx data: %d\n", ret);

	omap4_panda_init_rev();
	omap4_panda_i2c_init();
	platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
	platform_device_register(&omap_vwlan_device);
	omap_serial_init();
	omap_sdrc_init(NULL, NULL);
	omap4_twl6030_hsmmc_init(mmc);
	omap4_ehci_init();
	usb_musb_init(&musb_board_data);
	omap4_panda_display_init();
}

MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
	/* Maintainer: David Anders - Texas Instruments Inc */
	.atag_offset	= 0x100,
	.smp		= smp_ops(omap4_smp_ops),
	.reserve	= omap_reserve,
	.map_io		= omap4_map_io,
	.init_early	= omap4430_init_early,
	.init_irq	= gic_init_irq,
	.handle_irq	= gic_handle_irq,
	.init_machine	= omap4_panda_init,
	.init_late	= omap4430_init_late,
	.timer		= &omap4_timer,
	.restart	= omap44xx_restart,
MACHINE_END