linux-vybrid_public/arch/arm/mach-exynos4/mach-origen.c

/* linux/arch/arm/mach-exynos4/mach-origen.c
 *
 * Copyright (c) 2011 Insignal Co., Ltd.
 *		http://www.insignal.co.kr/
 *
 * 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/serial_core.h>
#include <linux/gpio.h>
#include <linux/mmc/host.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/input.h>
#include <linux/pwm_backlight.h>
#include <linux/gpio_keys.h>

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

#include <plat/regs-serial.h>
#include <plat/exynos4.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/sdhci.h>
#include <plat/iic.h>
#include <plat/ehci.h>
#include <plat/clock.h>
#include <plat/gpio-cfg.h>
#include <plat/backlight.h>

#include <mach/map.h>

/* Following are default values for UCON, ULCON and UFCON UART registers */
#define ORIGEN_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
				 S3C2410_UCON_RXILEVEL |	\
				 S3C2410_UCON_TXIRQMODE |	\
				 S3C2410_UCON_RXIRQMODE |	\
				 S3C2410_UCON_RXFIFO_TOI |	\
				 S3C2443_UCON_RXERR_IRQEN)

#define ORIGEN_ULCON_DEFAULT	S3C2410_LCON_CS8

#define ORIGEN_UFCON_DEFAULT	(S3C2410_UFCON_FIFOMODE |	\
				 S5PV210_UFCON_TXTRIG4 |	\
				 S5PV210_UFCON_RXTRIG4)

static struct s3c2410_uartcfg origen_uartcfgs[] __initdata = {
	[0] = {
		.hwport		= 0,
		.flags		= 0,
		.ucon		= ORIGEN_UCON_DEFAULT,
		.ulcon		= ORIGEN_ULCON_DEFAULT,
		.ufcon		= ORIGEN_UFCON_DEFAULT,
	},
	[1] = {
		.hwport		= 1,
		.flags		= 0,
		.ucon		= ORIGEN_UCON_DEFAULT,
		.ulcon		= ORIGEN_ULCON_DEFAULT,
		.ufcon		= ORIGEN_UFCON_DEFAULT,
	},
	[2] = {
		.hwport		= 2,
		.flags		= 0,
		.ucon		= ORIGEN_UCON_DEFAULT,
		.ulcon		= ORIGEN_ULCON_DEFAULT,
		.ufcon		= ORIGEN_UFCON_DEFAULT,
	},
	[3] = {
		.hwport		= 3,
		.flags		= 0,
		.ucon		= ORIGEN_UCON_DEFAULT,
		.ulcon		= ORIGEN_ULCON_DEFAULT,
		.ufcon		= ORIGEN_UFCON_DEFAULT,
	},
};

static struct s3c_sdhci_platdata origen_hsmmc0_pdata __initdata = {
	.cd_type		= S3C_SDHCI_CD_INTERNAL,
	.clk_type		= S3C_SDHCI_CLK_DIV_EXTERNAL,
};

static struct s3c_sdhci_platdata origen_hsmmc2_pdata __initdata = {
	.cd_type		= S3C_SDHCI_CD_INTERNAL,
	.clk_type		= S3C_SDHCI_CLK_DIV_EXTERNAL,
};

/* USB EHCI */
static struct s5p_ehci_platdata origen_ehci_pdata;

static void __init origen_ehci_init(void)
{
	struct s5p_ehci_platdata *pdata = &origen_ehci_pdata;

	s5p_ehci_set_platdata(pdata);
}

static struct gpio_keys_button origen_gpio_keys_table[] = {
	{
		.code			= KEY_MENU,
		.gpio			= EXYNOS4_GPX1(5),
		.desc			= "gpio-keys: KEY_MENU",
		.type			= EV_KEY,
		.active_low		= 1,
		.wakeup			= 1,
		.debounce_interval	= 1,
	}, {
		.code			= KEY_HOME,
		.gpio			= EXYNOS4_GPX1(6),
		.desc			= "gpio-keys: KEY_HOME",
		.type			= EV_KEY,
		.active_low		= 1,
		.wakeup			= 1,
		.debounce_interval	= 1,
	}, {
		.code			= KEY_BACK,
		.gpio			= EXYNOS4_GPX1(7),
		.desc			= "gpio-keys: KEY_BACK",
		.type			= EV_KEY,
		.active_low		= 1,
		.wakeup			= 1,
		.debounce_interval	= 1,
	}, {
		.code			= KEY_UP,
		.gpio			= EXYNOS4_GPX2(0),
		.desc			= "gpio-keys: KEY_UP",
		.type			= EV_KEY,
		.active_low		= 1,
		.wakeup			= 1,
		.debounce_interval	= 1,
	}, {
		.code			= KEY_DOWN,
		.gpio			= EXYNOS4_GPX2(1),
		.desc			= "gpio-keys: KEY_DOWN",
		.type			= EV_KEY,
		.active_low		= 1,
		.wakeup			= 1,
		.debounce_interval	= 1,
	},
};

static struct gpio_keys_platform_data origen_gpio_keys_data = {
	.buttons	= origen_gpio_keys_table,
	.nbuttons	= ARRAY_SIZE(origen_gpio_keys_table),
};

static struct platform_device origen_device_gpiokeys = {
	.name		= "gpio-keys",
	.dev		= {
		.platform_data	= &origen_gpio_keys_data,
	},
};

static struct platform_device *origen_devices[] __initdata = {
	&s3c_device_hsmmc2,
	&s3c_device_hsmmc0,
	&s3c_device_rtc,
	&s3c_device_wdt,
	&s5p_device_ehci,
	&s5p_device_fimc0,
	&s5p_device_fimc1,
	&s5p_device_fimc2,
	&s5p_device_fimc3,
	&origen_device_gpiokeys,
};

/* LCD Backlight data */
static struct samsung_bl_gpio_info origen_bl_gpio_info = {
	.no = EXYNOS4_GPD0(0),
	.func = S3C_GPIO_SFN(2),
};

static struct platform_pwm_backlight_data origen_bl_data = {
	.pwm_id = 0,
	.pwm_period_ns = 1000,
};

static void __init origen_map_io(void)
{
	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
	s3c24xx_init_clocks(24000000);
	s3c24xx_init_uarts(origen_uartcfgs, ARRAY_SIZE(origen_uartcfgs));
}

static void __init origen_machine_init(void)
{
	/*
	 * Since sdhci instance 2 can contain a bootable media,
	 * sdhci instance 0 is registered after instance 2.
	 */
	s3c_sdhci2_set_platdata(&origen_hsmmc2_pdata);
	s3c_sdhci0_set_platdata(&origen_hsmmc0_pdata);

	origen_ehci_init();
	clk_xusbxti.rate = 24000000;

	platform_add_devices(origen_devices, ARRAY_SIZE(origen_devices));

	samsung_bl_set(&origen_bl_gpio_info, &origen_bl_data);
}

MACHINE_START(ORIGEN, "ORIGEN")
	/* Maintainer: JeongHyeon Kim <jhkim@insignal.co.kr> */
	.boot_params	= S5P_PA_SDRAM + 0x100,
	.init_irq	= exynos4_init_irq,
	.map_io		= origen_map_io,
	.init_machine	= origen_machine_init,
	.timer		= &exynos4_timer,
MACHINE_END