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common-smdk.c

/* linux/arch/arm/plat-s3c24xx/common-smdk.c
 *
 * Copyright (c) 2006 Simtec Electronics
 *    Ben Dooks <ben@simtec.co.uk>
 *
 * 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/sysdev.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 <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/io.h>
#include <asm/irq.h>

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

#include <asm/plat-s3c/nand.h>

#include <asm/plat-s3c24xx/common-smdk.h>
#include <asm/plat-s3c24xx/devs.h>
#include <asm/plat-s3c24xx/pm.h>

/* LED devices */

static struct s3c24xx_led_platdata smdk_pdata_led4 = {
      .gpio       = S3C2410_GPF4,
      .flags            = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
      .name       = "led4",
      .def_trigger      = "timer",
};

static struct s3c24xx_led_platdata smdk_pdata_led5 = {
      .gpio       = S3C2410_GPF5,
      .flags            = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
      .name       = "led5",
      .def_trigger      = "nand-disk",
};

static struct s3c24xx_led_platdata smdk_pdata_led6 = {
      .gpio       = S3C2410_GPF6,
      .flags            = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
      .name       = "led6",
};

static struct s3c24xx_led_platdata smdk_pdata_led7 = {
      .gpio       = S3C2410_GPF7,
      .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 = SZ_16M,
      }
};

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,
};

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

      s3c2410_gpio_cfgpin(S3C2410_GPF4, S3C2410_GPF4_OUTP);
      s3c2410_gpio_cfgpin(S3C2410_GPF5, S3C2410_GPF5_OUTP);
      s3c2410_gpio_cfgpin(S3C2410_GPF6, S3C2410_GPF6_OUTP);
      s3c2410_gpio_cfgpin(S3C2410_GPF7, S3C2410_GPF7_OUTP);

      s3c2410_gpio_setpin(S3C2410_GPF4, 1);
      s3c2410_gpio_setpin(S3C2410_GPF5, 1);
      s3c2410_gpio_setpin(S3C2410_GPF6, 1);
      s3c2410_gpio_setpin(S3C2410_GPF7, 1);

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

      s3c_device_nand.dev.platform_data = &smdk_nand_info;

      platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));

      s3c2410_pm_init();
}

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