mach-smdk6442.c

/* linux/arch/arm/mach-s5p6442/mach-smdk6442.c
 *
 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
 *		http://www.samsung.com/
 *
 * 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/types.h>
#include <linux/init.h>
#include <linux/serial_core.h>

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

#include <mach/map.h>
#include <mach/regs-clock.h>

#include <plat/regs-serial.h>
#include <plat/s5p6442.h>
#include <plat/devs.h>
#include <plat/cpu.h>

/* Following are default values for UCON, ULCON and UFCON UART registers */
#define S5P6442_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
				 S3C2410_UCON_RXILEVEL |	\
				 S3C2410_UCON_TXIRQMODE |	\
				 S3C2410_UCON_RXIRQMODE |	\
				 S3C2410_UCON_RXFIFO_TOI |	\
				 S3C2443_UCON_RXERR_IRQEN)

#define S5P6442_ULCON_DEFAULT	S3C2410_LCON_CS8

#define S5P6442_UFCON_DEFAULT	(S3C2410_UFCON_FIFOMODE |	\
				 S5PV210_UFCON_TXTRIG4 |	\
				 S5PV210_UFCON_RXTRIG4)

static struct s3c2410_uartcfg smdk6442_uartcfgs[] __initdata = {
	[0] = {
		.hwport		= 0,
		.flags		= 0,
		.ucon		= S5P6442_UCON_DEFAULT,
		.ulcon		= S5P6442_ULCON_DEFAULT,
		.ufcon		= S5P6442_UFCON_DEFAULT,
	},
	[1] = {
		.hwport		= 1,
		.flags		= 0,
		.ucon		= S5P6442_UCON_DEFAULT,
		.ulcon		= S5P6442_ULCON_DEFAULT,
		.ufcon		= S5P6442_UFCON_DEFAULT,
	},
	[2] = {
		.hwport		= 2,
		.flags		= 0,
		.ucon		= S5P6442_UCON_DEFAULT,
		.ulcon		= S5P6442_ULCON_DEFAULT,
		.ufcon		= S5P6442_UFCON_DEFAULT,
	},
};

static struct platform_device *smdk6442_devices[] __initdata = {
	&s5p6442_device_iis0,
};

static void __init smdk6442_map_io(void)
{
	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
	s3c24xx_init_clocks(12000000);
	s3c24xx_init_uarts(smdk6442_uartcfgs, ARRAY_SIZE(smdk6442_uartcfgs));
}

static void __init smdk6442_machine_init(void)
{
	platform_add_devices(smdk6442_devices, ARRAY_SIZE(smdk6442_devices));
}

MACHINE_START(SMDK6442, "SMDK6442")
	/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
	.phys_io	= S3C_PA_UART & 0xfff00000,
	.io_pg_offst	= (((u32)S3C_VA_UART) >> 18) & 0xfffc,
	.boot_params	= S5P_PA_SDRAM + 0x100,
	.init_irq	= s5p6442_init_irq,
	.map_io		= smdk6442_map_io,
	.init_machine	= smdk6442_machine_init,
	.timer		= &s3c24xx_timer,
MACHINE_END