arch/arm/mach-s3c2410/common-smdk.c

   1 /* linux/arch/arm/mach-s3c2410/common-smdk.c
   2  *
   3  * Copyright (c) 2006 Simtec Electronics
   4  *      Ben Dooks <ben@simtec.co.uk>
   5  *
   6  * Common code for SMDK2410 and SMDK2440 boards
   7  *
   8  * http://www.fluff.org/ben/smdk2440/
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13 */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/types.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/list.h>
  19 #include <linux/timer.h>
  20 #include <linux/init.h>
  21 #include <linux/platform_device.h>
  22
  23 #include <linux/mtd/mtd.h>
  24 #include <linux/mtd/nand.h>
  25 #include <linux/mtd/nand_ecc.h>
  26 #include <linux/mtd/partitions.h>
  27
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30 #include <asm/mach/irq.h>
  31
  32 #include <asm/hardware.h>
  33 #include <asm/io.h>
  34 #include <asm/irq.h>
  35
  36 #include <asm/arch/regs-gpio.h>
  37
  38 #include <asm/arch/nand.h>
  39
  40 #include "common-smdk.h"
  41 #include "devs.h"
  42 #include "pm.h"
  43
  44 /* NAND parititon from 2.4.18-swl5 */
  45
  46 static struct mtd_partition smdk_default_nand_part[] = {
  47         [0] = {
  48                 .name   = "Boot Agent",
  49                 .size   = SZ_16K,
  50                 .offset = 0,
  51         },
  52         [1] = {
  53                 .name   = "S3C2410 flash partition 1",
  54                 .offset = 0,
  55                 .size   = SZ_2M,
  56         },
  57         [2] = {
  58                 .name   = "S3C2410 flash partition 2",
  59                 .offset = SZ_4M,
  60                 .size   = SZ_4M,
  61         },
  62         [3] = {
  63                 .name   = "S3C2410 flash partition 3",
  64                 .offset = SZ_8M,
  65                 .size   = SZ_2M,
  66         },
  67         [4] = {
  68                 .name   = "S3C2410 flash partition 4",
  69                 .offset = SZ_1M * 10,
  70                 .size   = SZ_4M,
  71         },
  72         [5] = {
  73                 .name   = "S3C2410 flash partition 5",
  74                 .offset = SZ_1M * 14,
  75                 .size   = SZ_1M * 10,
  76         },
  77         [6] = {
  78                 .name   = "S3C2410 flash partition 6",
  79                 .offset = SZ_1M * 24,
  80                 .size   = SZ_1M * 24,
  81         },
  82         [7] = {
  83                 .name   = "S3C2410 flash partition 7",
  84                 .offset = SZ_1M * 48,
  85                 .size   = SZ_16M,
  86         }
  87 };
  88
  89 static struct s3c2410_nand_set smdk_nand_sets[] = {
  90         [0] = {
  91                 .name           = "NAND",
  92                 .nr_chips       = 1,
  93                 .nr_partitions  = ARRAY_SIZE(smdk_default_nand_part),
  94                 .partitions     = smdk_default_nand_part,
  95         },
  96 };
  97
  98 /* choose a set of timings which should suit most 512Mbit
  99  * chips and beyond.
 100 */
 101
 102 static struct s3c2410_platform_nand smdk_nand_info = {
 103         .tacls          = 20,
 104         .twrph0         = 60,
 105         .twrph1         = 20,
 106         .nr_sets        = ARRAY_SIZE(smdk_nand_sets),
 107         .sets           = smdk_nand_sets,
 108 };
 109
 110 /* devices we initialise */
 111
 112 static struct platform_device __initdata *smdk_devs[] = {
 113         &s3c_device_nand,
 114 };
 115
 116 void __init smdk_machine_init(void)
 117 {
 118         /* Configure the LEDs (even if we have no LED support)*/
 119
 120         s3c2410_gpio_cfgpin(S3C2410_GPF4, S3C2410_GPF4_OUTP);
 121         s3c2410_gpio_cfgpin(S3C2410_GPF5, S3C2410_GPF5_OUTP);
 122         s3c2410_gpio_cfgpin(S3C2410_GPF6, S3C2410_GPF6_OUTP);
 123         s3c2410_gpio_cfgpin(S3C2410_GPF7, S3C2410_GPF7_OUTP);
 124
 125         s3c2410_gpio_setpin(S3C2410_GPF4, 1);
 126         s3c2410_gpio_setpin(S3C2410_GPF5, 1);
 127         s3c2410_gpio_setpin(S3C2410_GPF6, 1);
 128         s3c2410_gpio_setpin(S3C2410_GPF7, 1);
 129
 130         s3c_device_nand.dev.platform_data = &smdk_nand_info;
 131
 132         platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
 133
 134         s3c2410_pm_init();
 135 }