common-smdk.c

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/* linux/arch/arm/plat-s3c24xx/common-smdk.c
 *
 * Copyright (c) 2006 Simtec Electronics
 *  Ben Dooks <[email protected]>
 *
 * Common code for SMDK2410 and SMDK2440 boards
 *
 * http://www.fluff.org/ben/smdk2440/
 *
 * 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/interrupt.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/device.h>
#include <linux/platform_device.h>

#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
#include <linux/io.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <asm/mach-types.h>
#include <mach/hardware.h>
#include <asm/irq.h>

#include <mach/regs-gpio.h>
#include <linux/platform_data/leds-s3c24xx.h>

#include <linux/platform_data/mtd-nand-s3c2410.h>

#include <plat/common-smdk.h>
#include <plat/gpio-cfg.h>
#include <plat/devs.h>
#include <plat/pm.h>

/* LED devices */

static struct s3c24xx_led_platdata smdk_pdata_led4 = {
    .gpio       = S3C2410_GPF(4),
    .flags      = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
    .name       = "led4",
    .def_trigger    = "timer",
};

static struct s3c24xx_led_platdata smdk_pdata_led5 = {
    .gpio       = S3C2410_GPF(5),
    .flags      = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
    .name       = "led5",
    .def_trigger    = "nand-disk",
};

static struct s3c24xx_led_platdata smdk_pdata_led6 = {
    .gpio       = S3C2410_GPF(6),
    .flags      = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
    .name       = "led6",
};

static struct s3c24xx_led_platdata smdk_pdata_led7 = {
    .gpio       = S3C2410_GPF(7),
    .flags      = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
    .name       = "led7",
};

static struct platform_device smdk_led4 = {
    .name       = "s3c24xx_led",
    .id     = 0,
    .dev        = {
        .platform_data = &smdk_pdata_led4,
    },
};

static struct platform_device smdk_led5 = {
    .name       = "s3c24xx_led",
    .id     = 1,
    .dev        = {
        .platform_data = &smdk_pdata_led5,
    },
};

static struct platform_device smdk_led6 = {
    .name       = "s3c24xx_led",
    .id     = 2,
    .dev        = {
        .platform_data = &smdk_pdata_led6,
    },
};

static struct platform_device smdk_led7 = {
    .name       = "s3c24xx_led",
    .id     = 3,
    .dev        = {
        .platform_data = &smdk_pdata_led7,
    },
};

/* NAND parititon from 2.4.18-swl5 */

static struct mtd_partition smdk_default_nand_part[] = {
    [0] = {
        .name   = "Boot Agent",
        .size   = SZ_16K,
        .offset = 0,
    },
    [1] = {
        .name   = "S3C2410 flash partition 1",
        .offset = 0,
        .size   = SZ_2M,
    },
    [2] = {
        .name   = "S3C2410 flash partition 2",
        .offset = SZ_4M,
        .size   = SZ_4M,
    },
    [3] = {
        .name   = "S3C2410 flash partition 3",
        .offset = SZ_8M,
        .size   = SZ_2M,
    },
    [4] = {
        .name   = "S3C2410 flash partition 4",
        .offset = SZ_1M * 10,
        .size   = SZ_4M,
    },
    [5] = {
        .name   = "S3C2410 flash partition 5",
        .offset = SZ_1M * 14,
        .size   = SZ_1M * 10,
    },
    [6] = {
        .name   = "S3C2410 flash partition 6",
        .offset = SZ_1M * 24,
        .size   = SZ_1M * 24,
    },
    [7] = {
        .name   = "S3C2410 flash partition 7",
        .offset = SZ_1M * 48,
        .size   = MTDPART_SIZ_FULL,
    }
};

static struct s3c2410_nand_set smdk_nand_sets[] = {
    [0] = {
        .name       = "NAND",
        .nr_chips   = 1,
        .nr_partitions  = ARRAY_SIZE(smdk_default_nand_part),
        .partitions = smdk_default_nand_part,
    },
};

/* choose a set of timings which should suit most 512Mbit
 * chips and beyond.
*/

static struct s3c2410_platform_nand smdk_nand_info = {
    .tacls      = 20,
    .twrph0     = 60,
    .twrph1     = 20,
    .nr_sets    = ARRAY_SIZE(smdk_nand_sets),
    .sets       = smdk_nand_sets,
};

/* devices we initialise */

static struct platform_device __initdata *smdk_devs[] = {
    &s3c_device_nand,
    &smdk_led4,
    &smdk_led5,
    &smdk_led6,
    &smdk_led7,
};

static const struct gpio smdk_led_gpios[] = {
    { S3C2410_GPF(4), GPIOF_OUT_INIT_HIGH, NULL },
    { S3C2410_GPF(5), GPIOF_OUT_INIT_HIGH, NULL },
    { S3C2410_GPF(6), GPIOF_OUT_INIT_HIGH, NULL },
    { S3C2410_GPF(7), GPIOF_OUT_INIT_HIGH, NULL },
};

void __init smdk_machine_init(void)
{
    /* Configure the LEDs (even if we have no LED support)*/

    int ret = gpio_request_array(smdk_led_gpios,
                     ARRAY_SIZE(smdk_led_gpios));
    if (!WARN_ON(ret < 0))
        gpio_free_array(smdk_led_gpios, ARRAY_SIZE(smdk_led_gpios));

    if (machine_is_smdk2443())
        smdk_nand_info.twrph0 = 50;

    s3c_nand_set_platdata(&smdk_nand_info);

    platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));

    s3c_pm_init();
}