/*
 * arch/arm/mach-tegra/board-kai.c
 *
 * Copyright (c) 2012, NVIDIA Corporation.
 *
 * 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.
 *
 * 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/dma-mapping.h>
#include <linux/delay.h>
#include <linux/i2c-tegra.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/platform_data/tegra_usb.h>
#include <linux/spi/spi.h>
#include <linux/tegra_uart.h>
#include <linux/memblock.h>
#include <linux/spi-tegra.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 <mach/i2s.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/usb_phy.h>
#include <mach/thermal.h>

#include "board.h"
#include "clock.h"
#include "board-kai.h"
#include "devices.h"
#include "gpio-names.h"
#include "fuse.h"
#include "pm.h"
#include "wdt-recovery.h"

/* All units are in millicelsius */
static struct tegra_thermal_data thermal_data = {
	.temp_throttle = 85000,
	.temp_shutdown = 90000,
	.temp_offset = TDIODE_OFFSET, /* temps based on tdiode */
#ifdef CONFIG_TEGRA_EDP_LIMITS
	.edp_offset = TDIODE_OFFSET,  /* edp based on tdiode */
	.hysteresis_edp = 3000,
#endif
#ifdef CONFIG_TEGRA_THERMAL_SYSFS
	.tc1 = 0,
	.tc2 = 1,
	.passive_delay = 2000,
#else
	.hysteresis_throttle = 1000,
#endif
};

/* !!!TODO: Change for kai (Taken from Ventana) */
static struct tegra_utmip_config utmi_phy_config[] = {
	[0] = {
			.hssync_start_delay = 0,
			.idle_wait_delay = 17,
			.elastic_limit = 16,
			.term_range_adj = 6,
			.xcvr_setup = 15,
			.xcvr_setup_offset = 0,
			.xcvr_use_fuses = 1,
			.xcvr_lsfslew = 2,
			.xcvr_lsrslew = 2,
	},
	[1] = {
			.hssync_start_delay = 0,
			.idle_wait_delay = 17,
			.elastic_limit = 16,
			.term_range_adj = 6,
			.xcvr_setup = 15,
			.xcvr_setup_offset = 0,
			.xcvr_use_fuses = 1,
			.xcvr_lsfslew = 2,
			.xcvr_lsrslew = 2,
	},
	[2] = {
			.hssync_start_delay = 0,
			.idle_wait_delay = 17,
			.elastic_limit = 16,
			.term_range_adj = 6,
			.xcvr_setup = 8,
			.xcvr_setup_offset = 0,
			.xcvr_use_fuses = 1,
			.xcvr_lsfslew = 2,
			.xcvr_lsrslew = 2,
	},
};

static __initdata struct tegra_clk_init_table kai_clk_init_table[] = {
	/* name		parent		rate		enabled */
	{ "pll_m",	NULL,		0,		false},
	{ "hda",	"pll_p",	108000000,	false},
	{ "hda2codec_2x", "pll_p",	48000000,	false},
	{ "pwm",	"pll_p",	3187500,	false},
	{ "blink",	"clk_32k",	32768,		true},
	{ "i2s1",	"pll_a_out0",	0,		false},
	{ "i2s3",	"pll_a_out0",	0,		false},
	{ "spdif_out",	"pll_a_out0",	0,		false},
	{ "d_audio",	"pll_a_out0",	0,		false},
	{ "dam0",	"pll_a_out0",	0,		false},
	{ "dam1",	"pll_a_out0",	0,		false},
	{ "dam2",	"pll_a_out0",	0,		false},
	{ "audio1",	"i2s1_sync",	0,		false},
	{ "audio3",	"i2s3_sync",	0,		false},
	{ "vi_sensor",	"pll_p",	150000000,	false},
	{ "i2c1",	"pll_p",	3200000,	false},
	{ "i2c2",	"pll_p",	3200000,	false},
	{ "i2c3",	"pll_p",	3200000,	false},
	{ "i2c4",	"pll_p",	3200000,	false},
	{ "i2c5",	"pll_p",	3200000,	false},
	{ NULL,		NULL,		0,		0},
};

static struct tegra_i2c_platform_data kai_i2c1_platform_data = {
	.adapter_nr	= 0,
	.bus_count	= 1,
	.bus_clk_rate	= { 100000, 0 },
	.scl_gpio		= {TEGRA_GPIO_PC4, 0},
	.sda_gpio		= {TEGRA_GPIO_PC5, 0},
	.arb_recovery = arb_lost_recovery,
};

static struct tegra_i2c_platform_data kai_i2c2_platform_data = {
	.adapter_nr	= 1,
	.bus_count	= 1,
	.bus_clk_rate	= { 100000, 0 },
	.is_clkon_always = true,
	.scl_gpio		= {TEGRA_GPIO_PT5, 0},
	.sda_gpio		= {TEGRA_GPIO_PT6, 0},
	.arb_recovery = arb_lost_recovery,
};

static struct tegra_i2c_platform_data kai_i2c3_platform_data = {
	.adapter_nr	= 2,
	.bus_count	= 1,
	.bus_clk_rate	= { 100000, 0 },
	.scl_gpio		= {TEGRA_GPIO_PBB1, 0},
	.sda_gpio		= {TEGRA_GPIO_PBB2, 0},
	.arb_recovery = arb_lost_recovery,
};

static struct tegra_i2c_platform_data kai_i2c4_platform_data = {
	.adapter_nr	= 3,
	.bus_count	= 1,
	.bus_clk_rate	= { 100000, 0 },
	.scl_gpio		= {TEGRA_GPIO_PV4, 0},
	.sda_gpio		= {TEGRA_GPIO_PV5, 0},
	.arb_recovery = arb_lost_recovery,
};

static struct tegra_i2c_platform_data kai_i2c5_platform_data = {
	.adapter_nr	= 4,
	.bus_count	= 1,
	.bus_clk_rate	= { 400000, 0 },
	.scl_gpio		= {TEGRA_GPIO_PZ6, 0},
	.sda_gpio		= {TEGRA_GPIO_PZ7, 0},
	.arb_recovery = arb_lost_recovery,
};

static void kai_i2c_init(void)
{
	tegra_i2c_device1.dev.platform_data = &kai_i2c1_platform_data;
	tegra_i2c_device2.dev.platform_data = &kai_i2c2_platform_data;
	tegra_i2c_device3.dev.platform_data = &kai_i2c3_platform_data;
	tegra_i2c_device4.dev.platform_data = &kai_i2c4_platform_data;
	tegra_i2c_device5.dev.platform_data = &kai_i2c5_platform_data;

	platform_device_register(&tegra_i2c_device5);
	platform_device_register(&tegra_i2c_device4);
	platform_device_register(&tegra_i2c_device3);
	platform_device_register(&tegra_i2c_device2);
	platform_device_register(&tegra_i2c_device1);
}

static struct platform_device *kai_uart_devices[] __initdata = {
	&tegra_uarta_device,
	&tegra_uartb_device,
	&tegra_uartc_device,
	&tegra_uartd_device,
	&tegra_uarte_device,
};
static struct uart_clk_parent uart_parent_clk[] = {
	[0] = {.name = "clk_m"},
	[1] = {.name = "pll_p"},
#ifndef CONFIG_TEGRA_PLLM_RESTRICTED
	[2] = {.name = "pll_m"},
#endif
};

static struct tegra_uart_platform_data kai_uart_pdata;
static struct tegra_uart_platform_data kai_loopback_uart_pdata;

static void __init uart_debug_init(void)
{
	int debug_port_id;

	debug_port_id = get_tegra_uart_debug_port_id();
	if (debug_port_id < 0)
		debug_port_id = 3;

	switch (debug_port_id) {
	case 0:
		/* UARTA is the debug port. */
		pr_info("Selecting UARTA as the debug console\n");
		kai_uart_devices[0] = &debug_uarta_device;
		debug_uart_clk = clk_get_sys("serial8250.0", "uarta");
		debug_uart_port_base = ((struct plat_serial8250_port *)(
			debug_uarta_device.dev.platform_data))->mapbase;
		break;

	case 1:
		/* UARTB is the debug port. */
		pr_info("Selecting UARTB as the debug console\n");
		kai_uart_devices[1] = &debug_uartb_device;
		debug_uart_clk = clk_get_sys("serial8250.0", "uartb");
		debug_uart_port_base = ((struct plat_serial8250_port *)(
			debug_uartb_device.dev.platform_data))->mapbase;
		break;

	case 2:
		/* UARTC is the debug port. */
		pr_info("Selecting UARTC as the debug console\n");
		kai_uart_devices[2] = &debug_uartc_device;
		debug_uart_clk = clk_get_sys("serial8250.0", "uartc");
		debug_uart_port_base = ((struct plat_serial8250_port *)(
			debug_uartc_device.dev.platform_data))->mapbase;
		break;

	case 3:
		/* UARTD is the debug port. */
		pr_info("Selecting UARTD as the debug console\n");
		kai_uart_devices[3] = &debug_uartd_device;
		debug_uart_clk = clk_get_sys("serial8250.0", "uartd");
		debug_uart_port_base = ((struct plat_serial8250_port *)(
			debug_uartd_device.dev.platform_data))->mapbase;
		break;

	case 4:
		/* UARTE is the debug port. */
		pr_info("Selecting UARTE as the debug console\n");
		kai_uart_devices[4] = &debug_uarte_device;
		debug_uart_clk = clk_get_sys("serial8250.0", "uarte");
		debug_uart_port_base = ((struct plat_serial8250_port *)(
			debug_uarte_device.dev.platform_data))->mapbase;
		break;

	default:
		pr_info("The debug console id %d is invalid, Assuming UARTA",
			debug_port_id);
		kai_uart_devices[0] = &debug_uarta_device;
		debug_uart_clk = clk_get_sys("serial8250.0", "uarta");
		debug_uart_port_base = ((struct plat_serial8250_port *)(
			debug_uarta_device.dev.platform_data))->mapbase;
		break;
	}
	return;
}

static void __init kai_uart_init(void)
{
	struct clk *c;
	int i;

	for (i = 0; i < ARRAY_SIZE(uart_parent_clk); ++i) {
		c = tegra_get_clock_by_name(uart_parent_clk[i].name);
		if (IS_ERR_OR_NULL(c)) {
			pr_err("Not able to get the clock for %s\n",
						uart_parent_clk[i].name);
			continue;
		}
		uart_parent_clk[i].parent_clk = c;
		uart_parent_clk[i].fixed_clk_rate = clk_get_rate(c);
	}
	kai_uart_pdata.parent_clk_list = uart_parent_clk;
	kai_uart_pdata.parent_clk_count = ARRAY_SIZE(uart_parent_clk);
	kai_loopback_uart_pdata.parent_clk_list = uart_parent_clk;
	kai_loopback_uart_pdata.parent_clk_count =
						ARRAY_SIZE(uart_parent_clk);
	kai_loopback_uart_pdata.is_loopback = true;
	tegra_uarta_device.dev.platform_data = &kai_uart_pdata;
	tegra_uartb_device.dev.platform_data = &kai_uart_pdata;
	tegra_uartc_device.dev.platform_data = &kai_uart_pdata;
	tegra_uartd_device.dev.platform_data = &kai_uart_pdata;
	/* UARTE is used for loopback test purpose */
	tegra_uarte_device.dev.platform_data = &kai_loopback_uart_pdata;

	/* Register low speed only if it is selected */
	if (!is_tegra_debug_uartport_hs()) {
		uart_debug_init();
		/* Clock enable for the debug channel */
		if (!IS_ERR_OR_NULL(debug_uart_clk)) {
			pr_info("The debug console clock name is %s\n",
						debug_uart_clk->name);
			c = tegra_get_clock_by_name("pll_p");
			if (IS_ERR_OR_NULL(c))
				pr_err("Not getting the parent clock pll_p\n");
			else
				clk_set_parent(debug_uart_clk, c);

			clk_enable(debug_uart_clk);
			clk_set_rate(debug_uart_clk, clk_get_rate(c));
		} else {
			pr_err("Not getting the clock %s for debug console\n",
					debug_uart_clk->name);
		}
	}

	platform_add_devices(kai_uart_devices,
				ARRAY_SIZE(kai_uart_devices));
}

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

static struct platform_device *kai_spi_devices[] __initdata = {
	&tegra_spi_device4,
	&tegra_spi_device1,
};

static struct spi_clk_parent spi_parent_clk[] = {
	[0] = {.name = "pll_p"},
#ifndef CONFIG_TEGRA_PLLM_RESTRICTED
	[1] = {.name = "pll_m"},
	[2] = {.name = "clk_m"},
#else
	[1] = {.name = "clk_m"},
#endif
};

static struct tegra_spi_platform_data kai_spi_pdata = {
	.is_dma_based		= true,
	.max_dma_buffer		= (16 * 1024),
	.is_clkon_always	= false,
	.max_rate		= 100000000,
};

static void __init kai_spi_init(void)
{
	int i;
	struct clk *c;

	for (i = 0; i < ARRAY_SIZE(spi_parent_clk); ++i) {
		c = tegra_get_clock_by_name(spi_parent_clk[i].name);
		if (IS_ERR_OR_NULL(c)) {
			pr_err("Not able to get the clock for %s\n",
						spi_parent_clk[i].name);
			continue;
		}
		spi_parent_clk[i].parent_clk = c;
		spi_parent_clk[i].fixed_clk_rate = clk_get_rate(c);
	}
	kai_spi_pdata.parent_clk_list = spi_parent_clk;
	kai_spi_pdata.parent_clk_count = ARRAY_SIZE(spi_parent_clk);
	tegra_spi_device4.dev.platform_data = &kai_spi_pdata;
	platform_add_devices(kai_spi_devices,
				ARRAY_SIZE(kai_spi_devices));

}

static struct resource tegra_rtc_resources[] = {
	[0] = {
		.start = TEGRA_RTC_BASE,
		.end = TEGRA_RTC_BASE + TEGRA_RTC_SIZE - 1,
		.flags = IORESOURCE_MEM,
	},
	[1] = {
		.start = INT_RTC,
		.end = INT_RTC,
		.flags = IORESOURCE_IRQ,
	},
};

static struct platform_device tegra_rtc_device = {
	.name = "tegra_rtc",
	.id   = -1,
	.resource = tegra_rtc_resources,
	.num_resources = ARRAY_SIZE(tegra_rtc_resources),
};

static struct platform_device *kai_devices[] __initdata = {
	&tegra_pmu_device,
	&tegra_rtc_device,
	&tegra_udc_device,
#if defined(CONFIG_TEGRA_IOVMM_SMMU)
	&tegra_smmu_device,
#endif
	&tegra_wdt_device,
#if defined(CONFIG_TEGRA_AVP)
	&tegra_avp_device,
#endif
	&tegra_camera,
#if defined(CONFIG_CRYPTO_DEV_TEGRA_SE)
	&tegra_se_device,
#endif
	&tegra_ahub_device,
	&tegra_dam_device0,
	&tegra_dam_device1,
	&tegra_dam_device2,
	&tegra_i2s_device1,
	&tegra_i2s_device3,
	&tegra_spdif_device,
	&spdif_dit_device,
	&bluetooth_dit_device,
	&tegra_pcm_device,
	&tegra_hda_device,
#if defined(CONFIG_CRYPTO_DEV_TEGRA_AES)
	&tegra_aes_device,
#endif
};

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 = &utmi_phy_config[1],
			.operating_mode = TEGRA_USB_HOST,
			.power_down_on_bus_suspend = 1,
	},
};

static struct tegra_otg_platform_data tegra_otg_pdata = {
	.ehci_device = &tegra_ehci1_device,
	.ehci_pdata = &tegra_ehci_pdata[0],
};

#ifdef CONFIG_USB_SUPPORT
static struct usb_phy_plat_data tegra_usb_phy_pdata[] = {
	[0] = {
			.instance = 0,
			.vbus_gpio = -1,
			.vbus_reg_supply = "vdd_vbus_micro_usb",
	},
	[1] = {
			.instance = 1,
			.vbus_gpio = -1,
	},
};

static void kai_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_ehci2_device.dev.platform_data = &tegra_ehci_pdata[1];
	platform_device_register(&tegra_ehci2_device);
}
#else
static void kai_usb_init(void) { }
#endif

static void __init tegra_kai_init(void)
{
	tegra_thermal_init(&thermal_data);
	tegra_clk_init_from_table(kai_clk_init_table);
	kai_pinmux_init();
	kai_i2c_init();
	kai_spi_init();
	kai_usb_init();
#ifdef CONFIG_TEGRA_EDP_LIMITS
	kai_edp_init();
#endif
	kai_uart_init();
	kai_tsensor_init();
	platform_add_devices(kai_devices, ARRAY_SIZE(kai_devices));
	tegra_ram_console_debug_init();
	kai_sdhci_init();
	kai_regulator_init();
	kai_suspend_init();
	kai_power_off_init();
	kai_keys_init();
	kai_panel_init();
	kai_pins_state_init();
	tegra_release_bootloader_fb();
#ifdef CONFIG_TEGRA_WDT_RECOVERY
	tegra_wdt_recovery_init();
#endif
}

static void __init kai_ramconsole_reserve(unsigned long size)
{
	tegra_ram_console_debug_reserve(SZ_1M);
}

static void __init tegra_kai_reserve(void)
{
#if defined(CONFIG_NVMAP_CONVERT_CARVEOUT_TO_IOVMM)
	/* support 1920X1200 with 24bpp */
	tegra_reserve(0, SZ_8M + SZ_1M, SZ_8M + SZ_1M);
#else
	tegra_reserve(SZ_128M, SZ_8M, SZ_8M);
#endif
	kai_ramconsole_reserve(SZ_1M);
}

MACHINE_START(KAI, "kai")
	.boot_params	= 0x80000100,
	.map_io		= tegra_map_common_io,
	.reserve	= tegra_kai_reserve,
	.init_early	= tegra_init_early,
	.init_irq	= tegra_init_irq,
	.timer		= &tegra_timer,
	.init_machine	= tegra_kai_init,
MACHINE_END