arch/arm/plat-s3c24xx/common-smdk.c

   1 /* linux/arch/arm/plat-s3c24xx/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/sysdev.h>
  22 #include <linux/platform_device.h>
  23
  24 #include <linux/mtd/mtd.h>
  25 #include <linux/mtd/nand.h>
  26 #include <linux/mtd/nand_ecc.h>
  27 #include <linux/mtd/partitions.h>
  28
  29 #include <asm/mach/arch.h>
  30 #include <asm/mach/map.h>
  31 #include <asm/mach/irq.h>
  32
  33 #include <asm/hardware.h>
  34 #include <asm/io.h>
  35 #include <asm/irq.h>
  36
  37 #include <asm/arch/regs-gpio.h>
  38 #include <asm/arch/leds-gpio.h>
  39
  40 #include <asm/arch/nand.h>
  41
  42 #include <asm/plat-s3c24xx/common-smdk.h>
  43 #include <asm/plat-s3c24xx/devs.h>
  44 #include <asm/plat-s3c24xx/pm.h>
  45
  46 /* LED devices */
  47
  48 static struct s3c24xx_led_platdata smdk_pdata_led4 = {
  49         .gpio           = S3C2410_GPF4,
  50         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
  51         .name           = "led4",
  52         .def_trigger    = "timer",
  53 };
  54
  55 static struct s3c24xx_led_platdata smdk_pdata_led5 = {
  56         .gpio           = S3C2410_GPF5,
  57         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
  58         .name           = "led5",
  59         .def_trigger    = "nand-disk",
  60 };
  61
  62 static struct s3c24xx_led_platdata smdk_pdata_led6 = {
  63         .gpio           = S3C2410_GPF6,
  64         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
  65         .name           = "led6",
  66 };
  67
  68 static struct s3c24xx_led_platdata smdk_pdata_led7 = {
  69         .gpio           = S3C2410_GPF7,
  70         .flags          = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
  71         .name           = "led7",
  72 };
  73
  74 static struct platform_device smdk_led4 = {
  75         .name           = "s3c24xx_led",
  76         .id             = 0,
  77         .dev            = {
  78                 .platform_data = &smdk_pdata_led4,
  79         },
  80 };
  81
  82 static struct platform_device smdk_led5 = {
  83         .name           = "s3c24xx_led",
  84         .id             = 1,
  85         .dev            = {
  86                 .platform_data = &smdk_pdata_led5,
  87         },
  88 };
  89
  90 static struct platform_device smdk_led6 = {
  91         .name           = "s3c24xx_led",
  92         .id             = 2,
  93         .dev            = {
  94                 .platform_data = &smdk_pdata_led6,
  95         },
  96 };
  97
  98 static struct platform_device smdk_led7 = {
  99         .name           = "s3c24xx_led",
 100         .id             = 3,
 101         .dev            = {
 102                 .platform_data = &smdk_pdata_led7,
 103         },
 104 };
 105
 106 /* NAND parititon from 2.4.18-swl5 */
 107
 108 static struct mtd_partition smdk_default_nand_part[] = {
 109         [0] = {
 110                 .name   = "Boot Agent",
 111                 .size   = SZ_16K,
 112                 .offset = 0,
 113         },
 114         [1] = {
 115                 .name   = "S3C2410 flash partition 1",
 116                 .offset = 0,
 117                 .size   = SZ_2M,
 118         },
 119         [2] = {
 120                 .name   = "S3C2410 flash partition 2",
 121                 .offset = SZ_4M,
 122                 .size   = SZ_4M,
 123         },
 124         [3] = {
 125                 .name   = "S3C2410 flash partition 3",
 126                 .offset = SZ_8M,
 127                 .size   = SZ_2M,
 128         },
 129         [4] = {
 130                 .name   = "S3C2410 flash partition 4",
 131                 .offset = SZ_1M * 10,
 132                 .size   = SZ_4M,
 133         },
 134         [5] = {
 135                 .name   = "S3C2410 flash partition 5",
 136                 .offset = SZ_1M * 14,
 137                 .size   = SZ_1M * 10,
 138         },
 139         [6] = {
 140                 .name   = "S3C2410 flash partition 6",
 141                 .offset = SZ_1M * 24,
 142                 .size   = SZ_1M * 24,
 143         },
 144         [7] = {
 145                 .name   = "S3C2410 flash partition 7",
 146                 .offset = SZ_1M * 48,
 147                 .size   = SZ_16M,
 148         }
 149 };
 150
 151 static struct s3c2410_nand_set smdk_nand_sets[] = {
 152         [0] = {
 153                 .name           = "NAND",
 154                 .nr_chips       = 1,
 155                 .nr_partitions  = ARRAY_SIZE(smdk_default_nand_part),
 156                 .partitions     = smdk_default_nand_part,
 157         },
 158 };
 159
 160 /* choose a set of timings which should suit most 512Mbit
 161  * chips and beyond.
 162 */
 163
 164 static struct s3c2410_platform_nand smdk_nand_info = {
 165         .tacls          = 20,
 166         .twrph0         = 60,
 167         .twrph1         = 20,
 168         .nr_sets        = ARRAY_SIZE(smdk_nand_sets),
 169         .sets           = smdk_nand_sets,
 170 };
 171
 172 /* devices we initialise */
 173
 174 static struct platform_device __initdata *smdk_devs[] = {
 175         &s3c_device_nand,
 176         &smdk_led4,
 177         &smdk_led5,
 178         &smdk_led6,
 179         &smdk_led7,
 180 };
 181
 182 void __init smdk_machine_init(void)
 183 {
 184         /* Configure the LEDs (even if we have no LED support)*/
 185
 186         s3c2410_gpio_cfgpin(S3C2410_GPF4, S3C2410_GPF4_OUTP);
 187         s3c2410_gpio_cfgpin(S3C2410_GPF5, S3C2410_GPF5_OUTP);
 188         s3c2410_gpio_cfgpin(S3C2410_GPF6, S3C2410_GPF6_OUTP);
 189         s3c2410_gpio_cfgpin(S3C2410_GPF7, S3C2410_GPF7_OUTP);
 190
 191         s3c2410_gpio_setpin(S3C2410_GPF4, 1);
 192         s3c2410_gpio_setpin(S3C2410_GPF5, 1);
 193         s3c2410_gpio_setpin(S3C2410_GPF6, 1);
 194         s3c2410_gpio_setpin(S3C2410_GPF7, 1);
 195
 196         s3c_device_nand.dev.platform_data = &smdk_nand_info;
 197
 198         platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
 199
 200         s3c2410_pm_init();
 201 }