/*
 * arch/arm/mach-tegra/board-whistler.c
 *
 * Copyright (c) 2010 - 2011, NVIDIA Corporation.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/ctype.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/serial_8250.h>
#include <linux/i2c.h>
#include <linux/i2c/panjit_ts.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/i2c-tegra.h>
#include <linux/gpio.h>
#include <linux/gpio_scrollwheel.h>
#include <linux/input.h>
#include <linux/platform_data/tegra_usb.h>
#include <linux/mfd/max8907c.h>
#include <linux/memblock.h>

#include <mach/clk.h>
#include <mach/iomap.h>
#include <mach/irqs.h>
#include <mach/pinmux.h>
#include <mach/iomap.h>
#include <mach/io.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/usb_phy.h>

#include "board.h"
#include "clock.h"
#include "board-whistler.h"
#include "devices.h"
#include "gpio-names.h"
#include "fuse.h"
#include "board-whistler-baseband.h"

static struct plat_serial8250_port debug_uart_platform_data[] = {
	{
		.membase	= IO_ADDRESS(TEGRA_UARTA_BASE),
		.mapbase	= TEGRA_UARTA_BASE,
		.irq		= INT_UARTA,
		.flags		= UPF_BOOT_AUTOCONF | UPF_FIXED_TYPE,
		.type           = PORT_TEGRA,
		.iotype		= UPIO_MEM,
		.regshift	= 2,
		.uartclk	= 216000000,
	}, {
		.flags		= 0,
	}
};

static struct platform_device debug_uart = {
	.name = "serial8250",
	.id = PLAT8250_DEV_PLATFORM,
	.dev = {
		.platform_data = debug_uart_platform_data,
	},
};

#ifdef CONFIG_BCM4329_RFKILL

static struct resource whistler_bcm4329_rfkill_resources[] = {
	{
		.name	= "bcm4329_nshutdown_gpio",
		.start	= TEGRA_GPIO_PU0,
		.end	= TEGRA_GPIO_PU0,
		.flags	= IORESOURCE_IO,
	},
};

static struct platform_device whistler_bcm4329_rfkill_device = {
	.name		= "bcm4329_rfkill",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(whistler_bcm4329_rfkill_resources),
	.resource	= whistler_bcm4329_rfkill_resources,
};

static noinline void __init whistler_bt_rfkill(void)
{
	platform_device_register(&whistler_bcm4329_rfkill_device);
	return;
}
#else
static inline void whistler_bt_rfkill(void) { }
#endif

static struct tegra_utmip_config utmi_phy_config[] = {
	[0] = {
			.hssync_start_delay = 9,
			.idle_wait_delay = 17,
			.elastic_limit = 16,
			.term_range_adj = 6,
			.xcvr_setup = 15,
			.xcvr_lsfslew = 2,
			.xcvr_lsrslew = 2,
		},
	[1] = {
			.hssync_start_delay = 9,
			.idle_wait_delay = 17,
			.elastic_limit = 16,
			.term_range_adj = 6,
			.xcvr_setup = 8,
			.xcvr_lsfslew = 2,
			.xcvr_lsrslew = 2,
		},
};

static struct tegra_ulpi_config ulpi_phy_config = {
	.reset_gpio = TEGRA_GPIO_PG2,
	.clk = "clk_dev2",
};

static __initdata struct tegra_clk_init_table whistler_clk_init_table[] = {
	/* name		parent		rate		enabled */
	{ "uarta",	"pll_p",	216000000,	true},
	{ "uartc",	"pll_m",	600000000,	false},
	{ "pwm",	"clk_32k",	32768,		false},
	{ "kbc",	"clk_32k",	32768,		true},
	{ "sdmmc2",	"pll_p",	25000000,	false},
	{ NULL,		NULL,		0,		0},
};

static struct tegra_i2c_platform_data whistler_i2c1_platform_data = {
	.adapter_nr	= 0,
	.bus_count	= 1,
	.bus_clk_rate	= { 400000, 0 },
};

static const struct tegra_pingroup_config i2c2_ddc = {
	.pingroup	= TEGRA_PINGROUP_DDC,
	.func		= TEGRA_MUX_I2C2,
};

static const struct tegra_pingroup_config i2c2_gen2 = {
	.pingroup	= TEGRA_PINGROUP_PTA,
	.func		= TEGRA_MUX_I2C2,
};

static struct tegra_i2c_platform_data whistler_i2c2_platform_data = {
	.adapter_nr	= 1,
	.bus_count	= 2,
	.bus_clk_rate	= { 100000, 100000 },
	.bus_mux	= { &i2c2_ddc, &i2c2_gen2 },
	.bus_mux_len	= { 1, 1 },
};

static struct tegra_i2c_platform_data whistler_i2c3_platform_data = {
	.adapter_nr	= 3,
	.bus_count	= 1,
	.bus_clk_rate	= { 400000, 0 },
};

static struct tegra_i2c_platform_data whistler_dvc_platform_data = {
	.adapter_nr	= 4,
	.bus_count	= 1,
	.bus_clk_rate	= { 400000, 0 },
	.is_dvc		= true,
};

static void whistler_i2c_init(void)
{
	tegra_i2c_device1.dev.platform_data = &whistler_i2c1_platform_data;
	tegra_i2c_device2.dev.platform_data = &whistler_i2c2_platform_data;
	tegra_i2c_device3.dev.platform_data = &whistler_i2c3_platform_data;
	tegra_i2c_device4.dev.platform_data = &whistler_dvc_platform_data;

	platform_device_register(&tegra_i2c_device4);
	platform_device_register(&tegra_i2c_device3);
	platform_device_register(&tegra_i2c_device2);
	platform_device_register(&tegra_i2c_device1);
}

#define GPIO_SCROLL(_pinaction, _gpio, _desc)	\
{	\
	.pinaction = GPIO_SCROLLWHEEL_PIN_##_pinaction, \
	.gpio = TEGRA_GPIO_##_gpio,	\
	.desc = _desc,	\
	.active_low = 1,	\
	.debounce_interval = 2,	\
}

static struct gpio_scrollwheel_button scroll_keys[] = {
	[0] = GPIO_SCROLL(ONOFF, PR3, "sw_onoff"),
	[1] = GPIO_SCROLL(PRESS, PQ5, "sw_press"),
	[2] = GPIO_SCROLL(ROT1, PQ3, "sw_rot1"),
	[3] = GPIO_SCROLL(ROT2, PQ4, "sw_rot2"),
};

static struct gpio_scrollwheel_platform_data whistler_scroll_platform_data = {
	.buttons = scroll_keys,
	.nbuttons = ARRAY_SIZE(scroll_keys),
};

static struct platform_device whistler_scroll_device = {
	.name	= "alps-gpio-scrollwheel",
	.id	= 0,
	.dev	= {
		.platform_data	= &whistler_scroll_platform_data,
	},
};

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

static struct platform_device *whistler_devices[] __initdata = {
	&tegra_uartb_device,
	&tegra_uartc_device,
	&tegra_pmu_device,
	&tegra_udc_device,
	&tegra_gart_device,
	&tegra_wdt_device,
	&tegra_avp_device,
	&whistler_scroll_device,
	&tegra_camera,
};

static int __init whistler_scroll_init(void)
{
	int i;
	for (i = 0; i < ARRAY_SIZE(scroll_keys); i++)
		tegra_gpio_enable(scroll_keys[i].gpio);

	return 0;
}

static struct usb_phy_plat_data tegra_usb_phy_pdata[] = {
	[0] = {
			.instance = 0,
			.vbus_irq = MAX8907C_INT_BASE + MAX8907C_IRQ_VCHG_DC_R,
			.vbus_gpio = TEGRA_GPIO_PN6,
	},
	[1] = {
			.instance = 1,
			.vbus_gpio = -1,
	},
	[2] = {
			.instance = 2,
			.vbus_gpio = -1,
	},
};

static struct tegra_ehci_platform_data tegra_ehci_pdata[] = {
	[0] = {
			.phy_config = &utmi_phy_config[0],
			.operating_mode = TEGRA_USB_HOST,
			.power_down_on_bus_suspend = 1,
		},
	[1] = {
			.phy_config = &ulpi_phy_config,
			.operating_mode = TEGRA_USB_HOST,
			.power_down_on_bus_suspend = 1,
		},
	[2] = {
			.phy_config = &utmi_phy_config[1],
			.operating_mode = TEGRA_USB_HOST,
			.power_down_on_bus_suspend = 1,
	},
};

static struct platform_device *tegra_usb_otg_host_register(void)
{
	struct platform_device *pdev;
	void *platform_data;
	int val;

	pdev = platform_device_alloc(tegra_ehci1_device.name,
			tegra_ehci1_device.id);
	if (!pdev)
		return NULL;

	val = platform_device_add_resources(pdev, tegra_ehci1_device.resource,
		tegra_ehci1_device.num_resources);
	if (val)
		goto error;

	pdev->dev.dma_mask =  tegra_ehci1_device.dev.dma_mask;
	pdev->dev.coherent_dma_mask = tegra_ehci1_device.dev.coherent_dma_mask;

	platform_data = kmalloc(sizeof(struct tegra_ehci_platform_data),
				GFP_KERNEL);
	if (!platform_data)
		goto error;

	memcpy(platform_data, &tegra_ehci_pdata[0],
				sizeof(struct tegra_ehci_platform_data));
	pdev->dev.platform_data = platform_data;

	val = platform_device_add(pdev);
	if (val)
		goto error_add;

	return pdev;

error_add:
	kfree(platform_data);
error:
	pr_err("%s: failed to add the host contoller device\n", __func__);
	platform_device_put(pdev);
	return NULL;
}

static void tegra_usb_otg_host_unregister(struct platform_device *pdev)
{
	kfree(pdev->dev.platform_data);
	platform_device_unregister(pdev);
}

static struct tegra_otg_platform_data tegra_otg_pdata = {
	.host_register = &tegra_usb_otg_host_register,
	.host_unregister = &tegra_usb_otg_host_unregister,
};

static int __init whistler_gps_init(void)
{
	tegra_gpio_enable(TEGRA_GPIO_PU4);
	return 0;
}

static void whistler_power_off(void)
{
	int ret;

	ret = max8907c_power_off();
	if (ret)
		pr_err("whistler: failed to power off\n");

	while (1);
}

static void __init whistler_power_off_init(void)
{
	pm_power_off = whistler_power_off;
}

static void whistler_usb_init(void)
{
	tegra_usb_phy_init(tegra_usb_phy_pdata, ARRAY_SIZE(tegra_usb_phy_pdata));

	tegra_otg_device.dev.platform_data = &tegra_otg_pdata;
	platform_device_register(&tegra_otg_device);

	tegra_ehci3_device.dev.platform_data = &tegra_ehci_pdata[2];
	platform_device_register(&tegra_ehci3_device);
}

static void __init tegra_whistler_init(void)
{
	char serial[20];

	tegra_clk_init_from_table(whistler_clk_init_table);
	whistler_pinmux_init();
	whistler_i2c_init();
	if (is_tegra_debug_uartport_hs() == true)
		platform_device_register(&tegra_uarta_device);
	else
		platform_device_register(&debug_uart);
	platform_add_devices(whistler_devices, ARRAY_SIZE(whistler_devices));

	whistler_sdhci_init();
	whistler_regulator_init();
	whistler_panel_init();
	whistler_sensors_init();
	/*whistler_kbc_init();*/
	whistler_bt_rfkill();
	whistler_gps_init();
	whistler_usb_init();
	whistler_scroll_init();
	whistler_power_off_init();
	whistler_emc_init();
	whistler_baseband_init();
	tegra_release_bootloader_fb();
}

int __init tegra_whistler_protected_aperture_init(void)
{
	tegra_protected_aperture_init(tegra_grhost_aperture);
	return 0;
}

void __init tegra_whistler_reserve(void)
{
	if (memblock_reserve(0x0, 4096) < 0)
		pr_warn("Cannot reserve first 4K of memory for safety\n");

	tegra_reserve(SZ_128M, SZ_8M, SZ_16M);
}

MACHINE_START(WHISTLER, "whistler")
	.boot_params    = 0x00000100,
	.map_io         = tegra_map_common_io,
	.reserve        = tegra_whistler_reserve,
	.init_early	= tegra_init_early,
	.init_irq       = tegra_init_irq,
	.timer          = &tegra_timer,
	.init_machine   = tegra_whistler_init,
MACHINE_END