err.no Git - linux-2.6/blob - 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 "devs.h"
  41 #include "pm.h"
  42
  43 /* NAND parititon from 2.4.18-swl5 */
  44
  45 static struct mtd_partition smdk_default_nand_part[] = {
  46         [0] = {
  47                 .name   = "Boot Agent",
  48                 .size   = SZ_16K,
  49                 .offset = 0,
  50         },
  51         [1] = {
  52                 .name   = "S3C2410 flash parition 1",
  53                 .offset = 0,
  54                 .size   = SZ_2M,
  55         },
  56         [2] = {
  57                 .name   = "S3C2410 flash partition 2",
  58                 .offset = SZ_4M,
  59                 .size   = SZ_4M,
  60         },
  61         [3] = {
  62                 .name   = "S3C2410 flash partition 3",
  63                 .offset = SZ_8M,
  64                 .size   = SZ_2M,
  65         },
  66         [4] = {
  67                 .name   = "S3C2410 flash partition 4",
  68                 .offset = SZ_1M * 10,
  69                 .size   = SZ_4M,
  70         },
  71         [5] = {
  72                 .name   = "S3C2410 flash partition 5",
  73                 .offset = SZ_1M * 14,
  74                 .size   = SZ_1M * 10,
  75         },
  76         [6] = {
  77                 .name   = "S3C2410 flash partition 6",
  78                 .offset = SZ_1M * 24,
  79                 .size   = SZ_1M * 24,
  80         },
  81         [7] = {
  82                 .name   = "S3C2410 flash partition 7",
  83                 .offset = SZ_1M * 48,
  84                 .size   = SZ_16M,
  85         }
  86 };
  87
  88 static struct s3c2410_nand_set smdk_nand_sets[] = {
  89         [0] = {
  90                 .name           = "NAND",
  91                 .nr_chips       = 1,
  92                 .nr_partitions  = ARRAY_SIZE(smdk_default_nand_part),
  93                 .partitions     = smdk_default_nand_part,
  94         },
  95 };
  96
  97 /* choose a set of timings which should suit most 512Mbit
  98  * chips and beyond.
  99 */
 100
 101 static struct s3c2410_platform_nand smdk_nand_info = {
 102         .tacls          = 20,
 103         .twrph0         = 60,
 104         .twrph1         = 20,
 105         .nr_sets        = ARRAY_SIZE(smdk_nand_sets),
 106         .sets           = smdk_nand_sets,
 107 };
 108
 109 /* devices we initialise */
 110
 111 static struct platform_device __initdata *smdk_devs[] = {
 112         &s3c_device_nand,
 113 };
 114
 115 void __init smdk_machine_init(void)
 116 {
 117         /* Configure the LEDs (even if we have no LED support)*/
 118
 119         s3c2410_gpio_cfgpin(S3C2410_GPF4, S3C2410_GPF4_OUTP);
 120         s3c2410_gpio_cfgpin(S3C2410_GPF5, S3C2410_GPF5_OUTP);
 121         s3c2410_gpio_cfgpin(S3C2410_GPF6, S3C2410_GPF6_OUTP);
 122         s3c2410_gpio_cfgpin(S3C2410_GPF7, S3C2410_GPF7_OUTP);
 123
 124         s3c2410_gpio_setpin(S3C2410_GPF4, 1);
 125         s3c2410_gpio_setpin(S3C2410_GPF5, 1);
 126         s3c2410_gpio_setpin(S3C2410_GPF6, 1);
 127         s3c2410_gpio_setpin(S3C2410_GPF7, 1);
 128
 129         s3c_device_nand.dev.platform_data = &smdk_nand_info;
 130
 131         platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
 132
 133         s3c2410_pm_init();
 134 }