arch/arm/mach-s3c/common-smdk-s3c24xx.c

   1 // SPDX-License-Identifier: GPL-2.0
   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 #include <linux/kernel.h>
  11 #include <linux/types.h>
  12 #include <linux/interrupt.h>
  13 #include <linux/list.h>
  14 #include <linux/timer.h>
  15 #include <linux/init.h>
  16 #include <linux/gpio.h>
  17 #include <linux/gpio/machine.h>
  18 #include <linux/device.h>
  19 #include <linux/platform_device.h>
  20
  21 #include <linux/mtd/mtd.h>
  22 #include <linux/mtd/rawnand.h>
  23 #include <linux/mtd/nand-ecc-sw-hamming.h>
  24 #include <linux/mtd/partitions.h>
  25 #include <linux/io.h>
  26
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29 #include <asm/mach/irq.h>
  30
  31 #include <asm/mach-types.h>
  32 #include <asm/irq.h>
  33
  34 #include "regs-gpio.h"
  35 #include "gpio-samsung.h"
  36 #include <linux/platform_data/leds-s3c24xx.h>
  37 #include <linux/platform_data/mtd-nand-s3c2410.h>
  38
  39 #include "gpio-cfg.h"
  40 #include "devs.h"
  41 #include "pm.h"
  42
  43 #include "common-smdk-s3c24xx.h"
  44
  45 /* LED devices */
  46
  47 static struct gpiod_lookup_table smdk_led4_gpio_table = {
  48         .dev_id = "s3c24xx_led.0",
  49         .table = {
  50                 GPIO_LOOKUP("GPF", 4, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
  51                 { },
  52         },
  53 };
  54
  55 static struct gpiod_lookup_table smdk_led5_gpio_table = {
  56         .dev_id = "s3c24xx_led.1",
  57         .table = {
  58                 GPIO_LOOKUP("GPF", 5, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
  59                 { },
  60         },
  61 };
  62
  63 static struct gpiod_lookup_table smdk_led6_gpio_table = {
  64         .dev_id = "s3c24xx_led.2",
  65         .table = {
  66                 GPIO_LOOKUP("GPF", 6, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
  67                 { },
  68         },
  69 };
  70
  71 static struct gpiod_lookup_table smdk_led7_gpio_table = {
  72         .dev_id = "s3c24xx_led.3",
  73         .table = {
  74                 GPIO_LOOKUP("GPF", 7, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
  75                 { },
  76         },
  77 };
  78
  79 static struct s3c24xx_led_platdata smdk_pdata_led4 = {
  80         .name           = "led4",
  81         .def_trigger    = "timer",
  82 };
  83
  84 static struct s3c24xx_led_platdata smdk_pdata_led5 = {
  85         .name           = "led5",
  86         .def_trigger    = "nand-disk",
  87 };
  88
  89 static struct s3c24xx_led_platdata smdk_pdata_led6 = {
  90         .name           = "led6",
  91 };
  92
  93 static struct s3c24xx_led_platdata smdk_pdata_led7 = {
  94         .name           = "led7",
  95 };
  96
  97 static struct platform_device smdk_led4 = {
  98         .name           = "s3c24xx_led",
  99         .id             = 0,
 100         .dev            = {
 101                 .platform_data = &smdk_pdata_led4,
 102         },
 103 };
 104
 105 static struct platform_device smdk_led5 = {
 106         .name           = "s3c24xx_led",
 107         .id             = 1,
 108         .dev            = {
 109                 .platform_data = &smdk_pdata_led5,
 110         },
 111 };
 112
 113 static struct platform_device smdk_led6 = {
 114         .name           = "s3c24xx_led",
 115         .id             = 2,
 116         .dev            = {
 117                 .platform_data = &smdk_pdata_led6,
 118         },
 119 };
 120
 121 static struct platform_device smdk_led7 = {
 122         .name           = "s3c24xx_led",
 123         .id             = 3,
 124         .dev            = {
 125                 .platform_data = &smdk_pdata_led7,
 126         },
 127 };
 128
 129 /* NAND parititon from 2.4.18-swl5 */
 130
 131 static struct mtd_partition smdk_default_nand_part[] = {
 132         [0] = {
 133                 .name   = "Boot Agent",
 134                 .size   = SZ_16K,
 135                 .offset = 0,
 136         },
 137         [1] = {
 138                 .name   = "S3C2410 flash partition 1",
 139                 .offset = 0,
 140                 .size   = SZ_2M,
 141         },
 142         [2] = {
 143                 .name   = "S3C2410 flash partition 2",
 144                 .offset = SZ_4M,
 145                 .size   = SZ_4M,
 146         },
 147         [3] = {
 148                 .name   = "S3C2410 flash partition 3",
 149                 .offset = SZ_8M,
 150                 .size   = SZ_2M,
 151         },
 152         [4] = {
 153                 .name   = "S3C2410 flash partition 4",
 154                 .offset = SZ_1M * 10,
 155                 .size   = SZ_4M,
 156         },
 157         [5] = {
 158                 .name   = "S3C2410 flash partition 5",
 159                 .offset = SZ_1M * 14,
 160                 .size   = SZ_1M * 10,
 161         },
 162         [6] = {
 163                 .name   = "S3C2410 flash partition 6",
 164                 .offset = SZ_1M * 24,
 165                 .size   = SZ_1M * 24,
 166         },
 167         [7] = {
 168                 .name   = "S3C2410 flash partition 7",
 169                 .offset = SZ_1M * 48,
 170                 .size   = MTDPART_SIZ_FULL,
 171         }
 172 };
 173
 174 static struct s3c2410_nand_set smdk_nand_sets[] = {
 175         [0] = {
 176                 .name           = "NAND",
 177                 .nr_chips       = 1,
 178                 .nr_partitions  = ARRAY_SIZE(smdk_default_nand_part),
 179                 .partitions     = smdk_default_nand_part,
 180         },
 181 };
 182
 183 /* choose a set of timings which should suit most 512Mbit
 184  * chips and beyond.
 185 */
 186
 187 static struct s3c2410_platform_nand smdk_nand_info = {
 188         .tacls          = 20,
 189         .twrph0         = 60,
 190         .twrph1         = 20,
 191         .nr_sets        = ARRAY_SIZE(smdk_nand_sets),
 192         .sets           = smdk_nand_sets,
 193         .engine_type    = NAND_ECC_ENGINE_TYPE_SOFT,
 194 };
 195
 196 /* devices we initialise */
 197
 198 static struct platform_device __initdata *smdk_devs[] = {
 199         &s3c_device_nand,
 200         &smdk_led4,
 201         &smdk_led5,
 202         &smdk_led6,
 203         &smdk_led7,
 204 };
 205
 206 void __init smdk_machine_init(void)
 207 {
 208         if (machine_is_smdk2443())
 209                 smdk_nand_info.twrph0 = 50;
 210
 211         s3c_nand_set_platdata(&smdk_nand_info);
 212
 213         /* Disable pull-up on the LED lines */
 214         s3c_gpio_setpull(S3C2410_GPF(4), S3C_GPIO_PULL_NONE);
 215         s3c_gpio_setpull(S3C2410_GPF(5), S3C_GPIO_PULL_NONE);
 216         s3c_gpio_setpull(S3C2410_GPF(6), S3C_GPIO_PULL_NONE);
 217         s3c_gpio_setpull(S3C2410_GPF(7), S3C_GPIO_PULL_NONE);
 218
 219         /* Add lookups for the lines */
 220         gpiod_add_lookup_table(&smdk_led4_gpio_table);
 221         gpiod_add_lookup_table(&smdk_led5_gpio_table);
 222         gpiod_add_lookup_table(&smdk_led6_gpio_table);
 223         gpiod_add_lookup_table(&smdk_led7_gpio_table);
 224
 225         platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
 226
 227         s3c_pm_init();
 228 }