linux-vybrid_public/arch/arm/mach-s3c64xx/mach-mini6410.c

/* linux/arch/arm/mach-s3c64xx/mach-mini6410.c
 *
 * Copyright 2010 Darius Augulis <augulis.darius@gmail.com>
 * Copyright 2008 Openmoko, Inc.
 * Copyright 2008 Simtec Electronics
 *	Ben Dooks <ben@simtec.co.uk>
 *	http://armlinux.simtec.co.uk/
 *
 * 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/init.h>
#include <linux/interrupt.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/dm9000.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/serial_core.h>
#include <linux/types.h>

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

#include <mach/map.h>
#include <mach/regs-gpio.h>
#include <mach/regs-srom.h>
#include <mach/s3c6410.h>

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

#define UCON (S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK)
#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)

static struct s3c2410_uartcfg mini6410_uartcfgs[] __initdata = {
	[0] = {
		.hwport	= 0,
		.flags	= 0,
		.ucon	= UCON,
		.ulcon	= ULCON,
		.ufcon	= UFCON,
	},
	[1] = {
		.hwport	= 1,
		.flags	= 0,
		.ucon	= UCON,
		.ulcon	= ULCON,
		.ufcon	= UFCON,
	},
	[2] = {
		.hwport	= 2,
		.flags	= 0,
		.ucon	= UCON,
		.ulcon	= ULCON,
		.ufcon	= UFCON,
	},
	[3] = {
		.hwport	= 3,
		.flags	= 0,
		.ucon	= UCON,
		.ulcon	= ULCON,
		.ufcon	= UFCON,
	},
};

/* DM9000AEP 10/100 ethernet controller */

static struct resource mini6410_dm9k_resource[] = {
	[0] = {
		.start	= S3C64XX_PA_XM0CSN1,
		.end	= S3C64XX_PA_XM0CSN1 + 1,
		.flags	= IORESOURCE_MEM
	},
	[1] = {
		.start	= S3C64XX_PA_XM0CSN1 + 4,
		.end	= S3C64XX_PA_XM0CSN1 + 5,
		.flags	= IORESOURCE_MEM
	},
	[2] = {
		.start	= S3C_EINT(7),
		.end	= S3C_EINT(7),
		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL
	}
};

static struct dm9000_plat_data mini6410_dm9k_pdata = {
	.flags		= (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
};

static struct platform_device mini6410_device_eth = {
	.name		= "dm9000",
	.id		= -1,
	.num_resources	= ARRAY_SIZE(mini6410_dm9k_resource),
	.resource	= mini6410_dm9k_resource,
	.dev		= {
		.platform_data	= &mini6410_dm9k_pdata,
	},
};

static struct mtd_partition mini6410_nand_part[] = {
	[0] = {
		.name	= "uboot",
		.size	= SZ_1M,
		.offset	= 0,
	},
	[1] = {
		.name	= "kernel",
		.size	= SZ_2M,
		.offset	= SZ_1M,
	},
	[2] = {
		.name	= "rootfs",
		.size	= MTDPART_SIZ_FULL,
		.offset	= SZ_1M + SZ_2M,
	},
};

static struct s3c2410_nand_set mini6410_nand_sets[] = {
	[0] = {
		.name		= "nand",
		.nr_chips	= 1,
		.nr_partitions	= ARRAY_SIZE(mini6410_nand_part),
		.partitions	= mini6410_nand_part,
	},
};

static struct s3c2410_platform_nand mini6410_nand_info = {
	.tacls		= 25,
	.twrph0		= 55,
	.twrph1		= 40,
	.nr_sets	= ARRAY_SIZE(mini6410_nand_sets),
	.sets		= mini6410_nand_sets,
};

static struct platform_device *mini6410_devices[] __initdata = {
	&mini6410_device_eth,
	&s3c_device_hsmmc0,
	&s3c_device_hsmmc1,
	&s3c_device_ohci,
	&s3c_device_nand,
};

static void __init mini6410_map_io(void)
{
	s3c64xx_init_io(NULL, 0);
	s3c24xx_init_clocks(12000000);
	s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
}

static void __init mini6410_machine_init(void)
{
	u32 cs1;

	s3c_nand_set_platdata(&mini6410_nand_info);

	/* configure nCS1 width to 16 bits */

	cs1 = __raw_readl(S3C64XX_SROM_BW) &
		~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
	cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
		(1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
		(1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
			S3C64XX_SROM_BW__NCS1__SHIFT;
	__raw_writel(cs1, S3C64XX_SROM_BW);

	/* set timing for nCS1 suitable for ethernet chip */

	__raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
		(6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
		(4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
		(1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
		(13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
		(4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
		(0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);

	platform_add_devices(mini6410_devices, ARRAY_SIZE(mini6410_devices));
}

MACHINE_START(MINI6410, "MINI6410")
	/* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
	.boot_params	= S3C64XX_PA_SDRAM + 0x100,
	.init_irq	= s3c6410_init_irq,
	.map_io		= mini6410_map_io,
	.init_machine	= mini6410_machine_init,
	.timer		= &s3c24xx_timer,
MACHINE_END