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

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Copyright (c) 2006 Simtec Electronics
   4 //      Ben Dooks <[email protected]>
   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.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 <mach/hardware.h>
  33 #include <asm/irq.h>
  34
  35 #include <mach/regs-gpio.h>
  36 #include <mach/gpio-samsung.h>
  37 #include <linux/platform_data/leds-s3c24xx.h>
  38 #include <linux/platform_data/mtd-nand-s3c2410.h>
  39
  40 #include <plat/gpio-cfg.h>
  41 #include <plat/devs.h>
  42 #include <plat/pm.h>
  43
  44 #include "common-smdk.h"
  45
  46 /* LED devices */
  47
  48 static struct gpiod_lookup_table smdk_led4_gpio_table = {
  49         .dev_id = "s3c24xx_led.0",
  50         .table = {
  51                 GPIO_LOOKUP("GPF", 4, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
  52                 { },
  53         },
  54 };
  55
  56 static struct gpiod_lookup_table smdk_led5_gpio_table = {
  57         .dev_id = "s3c24xx_led.1",
  58         .table = {
  59                 GPIO_LOOKUP("GPF", 5, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
  60                 { },
  61         },
  62 };
  63
  64 static struct gpiod_lookup_table smdk_led6_gpio_table = {
  65         .dev_id = "s3c24xx_led.2",
  66         .table = {
  67                 GPIO_LOOKUP("GPF", 6, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
  68                 { },
  69         },
  70 };
  71
  72 static struct gpiod_lookup_table smdk_led7_gpio_table = {
  73         .dev_id = "s3c24xx_led.3",
  74         .table = {
  75                 GPIO_LOOKUP("GPF", 7, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
  76                 { },
  77         },
  78 };
  79
  80 static struct s3c24xx_led_platdata smdk_pdata_led4 = {
  81         .name           = "led4",
  82         .def_trigger    = "timer",
  83 };
  84
  85 static struct s3c24xx_led_platdata smdk_pdata_led5 = {
  86         .name           = "led5",
  87         .def_trigger    = "nand-disk",
  88 };
  89
  90 static struct s3c24xx_led_platdata smdk_pdata_led6 = {
  91         .name           = "led6",
  92 };
  93
  94 static struct s3c24xx_led_platdata smdk_pdata_led7 = {
  95         .name           = "led7",
  96 };
  97
  98 static struct platform_device smdk_led4 = {
  99         .name           = "s3c24xx_led",
 100         .id             = 0,
 101         .dev            = {
 102                 .platform_data = &smdk_pdata_led4,
 103         },
 104 };
 105
 106 static struct platform_device smdk_led5 = {
 107         .name           = "s3c24xx_led",
 108         .id             = 1,
 109         .dev            = {
 110                 .platform_data = &smdk_pdata_led5,
 111         },
 112 };
 113
 114 static struct platform_device smdk_led6 = {
 115         .name           = "s3c24xx_led",
 116         .id             = 2,
 117         .dev            = {
 118                 .platform_data = &smdk_pdata_led6,
 119         },
 120 };
 121
 122 static struct platform_device smdk_led7 = {
 123         .name           = "s3c24xx_led",
 124         .id             = 3,
 125         .dev            = {
 126                 .platform_data = &smdk_pdata_led7,
 127         },
 128 };
 129
 130 /* NAND parititon from 2.4.18-swl5 */
 131
 132 static struct mtd_partition smdk_default_nand_part[] = {
 133         [0] = {
 134                 .name   = "Boot Agent",
 135                 .size   = SZ_16K,
 136                 .offset = 0,
 137         },
 138         [1] = {
 139                 .name   = "S3C2410 flash partition 1",
 140                 .offset = 0,
 141                 .size   = SZ_2M,
 142         },
 143         [2] = {
 144                 .name   = "S3C2410 flash partition 2",
 145                 .offset = SZ_4M,
 146                 .size   = SZ_4M,
 147         },
 148         [3] = {
 149                 .name   = "S3C2410 flash partition 3",
 150                 .offset = SZ_8M,
 151                 .size   = SZ_2M,
 152         },
 153         [4] = {
 154                 .name   = "S3C2410 flash partition 4",
 155                 .offset = SZ_1M * 10,
 156                 .size   = SZ_4M,
 157         },
 158         [5] = {
 159                 .name   = "S3C2410 flash partition 5",
 160                 .offset = SZ_1M * 14,
 161                 .size   = SZ_1M * 10,
 162         },
 163         [6] = {
 164                 .name   = "S3C2410 flash partition 6",
 165                 .offset = SZ_1M * 24,
 166                 .size   = SZ_1M * 24,
 167         },
 168         [7] = {
 169                 .name   = "S3C2410 flash partition 7",
 170                 .offset = SZ_1M * 48,
 171                 .size   = MTDPART_SIZ_FULL,
 172         }
 173 };
 174
 175 static struct s3c2410_nand_set smdk_nand_sets[] = {
 176         [0] = {
 177                 .name           = "NAND",
 178                 .nr_chips       = 1,
 179                 .nr_partitions  = ARRAY_SIZE(smdk_default_nand_part),
 180                 .partitions     = smdk_default_nand_part,
 181         },
 182 };
 183
 184 /* choose a set of timings which should suit most 512Mbit
 185  * chips and beyond.
 186 */
 187
 188 static struct s3c2410_platform_nand smdk_nand_info = {
 189         .tacls          = 20,
 190         .twrph0         = 60,
 191         .twrph1         = 20,
 192         .nr_sets        = ARRAY_SIZE(smdk_nand_sets),
 193         .sets           = smdk_nand_sets,
 194         .ecc_mode       = NAND_ECC_SOFT,
 195 };
 196
 197 /* devices we initialise */
 198
 199 static struct platform_device __initdata *smdk_devs[] = {
 200         &s3c_device_nand,
 201         &smdk_led4,
 202         &smdk_led5,
 203         &smdk_led6,
 204         &smdk_led7,
 205 };
 206
 207 void __init smdk_machine_init(void)
 208 {
 209         if (machine_is_smdk2443())
 210                 smdk_nand_info.twrph0 = 50;
 211
 212         s3c_nand_set_platdata(&smdk_nand_info);
 213
 214         /* Disable pull-up on the LED lines */
 215         s3c_gpio_setpull(S3C2410_GPF(4), S3C_GPIO_PULL_NONE);
 216         s3c_gpio_setpull(S3C2410_GPF(5), S3C_GPIO_PULL_NONE);
 217         s3c_gpio_setpull(S3C2410_GPF(6), S3C_GPIO_PULL_NONE);
 218         s3c_gpio_setpull(S3C2410_GPF(7), S3C_GPIO_PULL_NONE);
 219
 220         /* Add lookups for the lines */
 221         gpiod_add_lookup_table(&smdk_led4_gpio_table);
 222         gpiod_add_lookup_table(&smdk_led5_gpio_table);
 223         gpiod_add_lookup_table(&smdk_led6_gpio_table);
 224         gpiod_add_lookup_table(&smdk_led7_gpio_table);
 225
 226         platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
 227
 228         s3c_pm_init();
 229 }