arch/arm/mach-omap2/devices.c

   1 /*
   2  * linux/arch/arm/mach-omap2/devices.c
   3  *
   4  * OMAP2 platform device setup/initialization
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/platform_device.h>
  16
  17 #include <mach/hardware.h>
  18 #include <asm/io.h>
  19 #include <asm/mach-types.h>
  20 #include <asm/mach/map.h>
  21
  22 #include <mach/tc.h>
  23 #include <mach/board.h>
  24 #include <mach/mux.h>
  25 #include <mach/gpio.h>
  26
  27 #if     defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
  28
  29 #define OMAP2_I2C_BASE2         0x48072000
  30 #define OMAP2_I2C_INT2          57
  31
  32 static struct resource i2c_resources2[] = {
  33         {
  34                 .start          = OMAP2_I2C_BASE2,
  35                 .end            = OMAP2_I2C_BASE2 + 0x3f,
  36                 .flags          = IORESOURCE_MEM,
  37         },
  38         {
  39                 .start          = OMAP2_I2C_INT2,
  40                 .flags          = IORESOURCE_IRQ,
  41         },
  42 };
  43
  44 static struct platform_device omap_i2c_device2 = {
  45         .name           = "i2c_omap",
  46         .id             = 2,
  47         .num_resources  = ARRAY_SIZE(i2c_resources2),
  48         .resource       = i2c_resources2,
  49 };
  50
  51 /* See also arch/arm/plat-omap/devices.c for first I2C on 24xx */
  52 static void omap_init_i2c(void)
  53 {
  54         /* REVISIT: Second I2C not in use on H4? */
  55         if (machine_is_omap_h4())
  56                 return;
  57
  58         if (!cpu_is_omap2430()) {
  59                 omap_cfg_reg(J15_24XX_I2C2_SCL);
  60                 omap_cfg_reg(H19_24XX_I2C2_SDA);
  61         }
  62         (void) platform_device_register(&omap_i2c_device2);
  63 }
  64
  65 #else
  66
  67 static void omap_init_i2c(void) {}
  68
  69 #endif
  70
  71 #if defined(CONFIG_OMAP_MBOX_FWK) || defined(CONFIG_OMAP_MBOX_FWK_MODULE)
  72
  73 #define MBOX_REG_SIZE   0x120
  74
  75 static struct resource omap2_mbox_resources[] = {
  76         {
  77                 .start          = OMAP24XX_MAILBOX_BASE,
  78                 .end            = OMAP24XX_MAILBOX_BASE + MBOX_REG_SIZE - 1,
  79                 .flags          = IORESOURCE_MEM,
  80         },
  81         {
  82                 .start          = INT_24XX_MAIL_U0_MPU,
  83                 .flags          = IORESOURCE_IRQ,
  84         },
  85         {
  86                 .start          = INT_24XX_MAIL_U3_MPU,
  87                 .flags          = IORESOURCE_IRQ,
  88         },
  89 };
  90
  91 static struct resource omap3_mbox_resources[] = {
  92         {
  93                 .start          = OMAP34XX_MAILBOX_BASE,
  94                 .end            = OMAP34XX_MAILBOX_BASE + MBOX_REG_SIZE - 1,
  95                 .flags          = IORESOURCE_MEM,
  96         },
  97         {
  98                 .start          = INT_34XX_MAIL_U0_MPU,
  99                 .flags          = IORESOURCE_IRQ,
 100         },
 101 };
 102
 103 static struct platform_device mbox_device = {
 104         .name           = "omap2-mailbox",
 105         .id             = -1,
 106 };
 107
 108 static inline void omap_init_mbox(void)
 109 {
 110         if (cpu_is_omap2420()) {
 111                 mbox_device.num_resources = ARRAY_SIZE(omap2_mbox_resources);
 112                 mbox_device.resource = omap2_mbox_resources;
 113         } else if (cpu_is_omap3430()) {
 114                 mbox_device.num_resources = ARRAY_SIZE(omap3_mbox_resources);
 115                 mbox_device.resource = omap3_mbox_resources;
 116         } else {
 117                 return;
 118         }
 119         platform_device_register(&mbox_device);
 120 }
 121 #else
 122 static inline void omap_init_mbox(void) { }
 123 #endif /* CONFIG_OMAP_MBOX_FWK */
 124
 125 #if defined(CONFIG_OMAP_STI)
 126
 127 #define OMAP2_STI_BASE          IO_ADDRESS(0x48068000)
 128 #define OMAP2_STI_CHANNEL_BASE  0x54000000
 129 #define OMAP2_STI_IRQ           4
 130
 131 static struct resource sti_resources[] = {
 132         {
 133                 .start          = OMAP2_STI_BASE,
 134                 .end            = OMAP2_STI_BASE + 0x7ff,
 135                 .flags          = IORESOURCE_MEM,
 136         },
 137         {
 138                 .start          = OMAP2_STI_CHANNEL_BASE,
 139                 .end            = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1,
 140                 .flags          = IORESOURCE_MEM,
 141         },
 142         {
 143                 .start          = OMAP2_STI_IRQ,
 144                 .flags          = IORESOURCE_IRQ,
 145         }
 146 };
 147
 148 static struct platform_device sti_device = {
 149         .name           = "sti",
 150         .id             = -1,
 151         .num_resources  = ARRAY_SIZE(sti_resources),
 152         .resource       = sti_resources,
 153 };
 154
 155 static inline void omap_init_sti(void)
 156 {
 157         platform_device_register(&sti_device);
 158 }
 159 #else
 160 static inline void omap_init_sti(void) {}
 161 #endif
 162
 163 #if defined(CONFIG_SPI_OMAP24XX)
 164
 165 #include <mach/mcspi.h>
 166
 167 #define OMAP2_MCSPI1_BASE               0x48098000
 168 #define OMAP2_MCSPI2_BASE               0x4809a000
 169
 170 static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
 171         .num_cs         = 4,
 172 };
 173
 174 static struct resource omap2_mcspi1_resources[] = {
 175         {
 176                 .start          = OMAP2_MCSPI1_BASE,
 177                 .end            = OMAP2_MCSPI1_BASE + 0xff,
 178                 .flags          = IORESOURCE_MEM,
 179         },
 180 };
 181
 182 struct platform_device omap2_mcspi1 = {
 183         .name           = "omap2_mcspi",
 184         .id             = 1,
 185         .num_resources  = ARRAY_SIZE(omap2_mcspi1_resources),
 186         .resource       = omap2_mcspi1_resources,
 187         .dev            = {
 188                 .platform_data = &omap2_mcspi1_config,
 189         },
 190 };
 191
 192 static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
 193         .num_cs         = 2,
 194 };
 195
 196 static struct resource omap2_mcspi2_resources[] = {
 197         {
 198                 .start          = OMAP2_MCSPI2_BASE,
 199                 .end            = OMAP2_MCSPI2_BASE + 0xff,
 200                 .flags          = IORESOURCE_MEM,
 201         },
 202 };
 203
 204 struct platform_device omap2_mcspi2 = {
 205         .name           = "omap2_mcspi",
 206         .id             = 2,
 207         .num_resources  = ARRAY_SIZE(omap2_mcspi2_resources),
 208         .resource       = omap2_mcspi2_resources,
 209         .dev            = {
 210                 .platform_data = &omap2_mcspi2_config,
 211         },
 212 };
 213
 214 static void omap_init_mcspi(void)
 215 {
 216         platform_device_register(&omap2_mcspi1);
 217         platform_device_register(&omap2_mcspi2);
 218 }
 219
 220 #else
 221 static inline void omap_init_mcspi(void) {}
 222 #endif
 223
 224 /*-------------------------------------------------------------------------*/
 225
 226 static int __init omap2_init_devices(void)
 227 {
 228         /* please keep these calls, and their implementations above,
 229          * in alphabetical order so they're easier to sort through.
 230          */
 231         omap_init_i2c();
 232         omap_init_mbox();
 233         omap_init_mcspi();
 234         omap_init_sti();
 235
 236         return 0;
 237 }
 238 arch_initcall(omap2_init_devices);