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 <asm/hardware.h>
  18 #include <asm/io.h>
  19 #include <asm/mach-types.h>
  20 #include <asm/mach/map.h>
  21
  22 #include <asm/arch/tc.h>
  23 #include <asm/arch/board.h>
  24 #include <asm/arch/mux.h>
  25 #include <asm/arch/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_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
  72 #define OMAP2_MBOX_BASE         IO_ADDRESS(OMAP24XX_MAILBOX_BASE)
  73
  74 static struct resource mbox_resources[] = {
  75         {
  76                 .start          = OMAP2_MBOX_BASE,
  77                 .end            = OMAP2_MBOX_BASE + 0x11f,
  78                 .flags          = IORESOURCE_MEM,
  79         },
  80         {
  81                 .start          = INT_24XX_MAIL_U0_MPU,
  82                 .flags          = IORESOURCE_IRQ,
  83         },
  84         {
  85                 .start          = INT_24XX_MAIL_U3_MPU,
  86                 .flags          = IORESOURCE_IRQ,
  87         },
  88 };
  89
  90 static struct platform_device mbox_device = {
  91         .name           = "mailbox",
  92         .id             = -1,
  93         .num_resources  = ARRAY_SIZE(mbox_resources),
  94         .resource       = mbox_resources,
  95 };
  96
  97 static inline void omap_init_mbox(void)
  98 {
  99         platform_device_register(&mbox_device);
 100 }
 101 #else
 102 static inline void omap_init_mbox(void) { }
 103 #endif
 104
 105 #if defined(CONFIG_OMAP_STI)
 106
 107 #define OMAP2_STI_BASE          IO_ADDRESS(0x48068000)
 108 #define OMAP2_STI_CHANNEL_BASE  0x54000000
 109 #define OMAP2_STI_IRQ           4
 110
 111 static struct resource sti_resources[] = {
 112         {
 113                 .start          = OMAP2_STI_BASE,
 114                 .end            = OMAP2_STI_BASE + 0x7ff,
 115                 .flags          = IORESOURCE_MEM,
 116         },
 117         {
 118                 .start          = OMAP2_STI_CHANNEL_BASE,
 119                 .end            = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1,
 120                 .flags          = IORESOURCE_MEM,
 121         },
 122         {
 123                 .start          = OMAP2_STI_IRQ,
 124                 .flags          = IORESOURCE_IRQ,
 125         }
 126 };
 127
 128 static struct platform_device sti_device = {
 129         .name           = "sti",
 130         .id             = -1,
 131         .num_resources  = ARRAY_SIZE(sti_resources),
 132         .resource       = sti_resources,
 133 };
 134
 135 static inline void omap_init_sti(void)
 136 {
 137         platform_device_register(&sti_device);
 138 }
 139 #else
 140 static inline void omap_init_sti(void) {}
 141 #endif
 142
 143 #if defined(CONFIG_SPI_OMAP24XX)
 144
 145 #include <asm/arch/mcspi.h>
 146
 147 #define OMAP2_MCSPI1_BASE               0x48098000
 148 #define OMAP2_MCSPI2_BASE               0x4809a000
 149
 150 static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
 151         .num_cs         = 4,
 152 };
 153
 154 static struct resource omap2_mcspi1_resources[] = {
 155         {
 156                 .start          = OMAP2_MCSPI1_BASE,
 157                 .end            = OMAP2_MCSPI1_BASE + 0xff,
 158                 .flags          = IORESOURCE_MEM,
 159         },
 160 };
 161
 162 struct platform_device omap2_mcspi1 = {
 163         .name           = "omap2_mcspi",
 164         .id             = 1,
 165         .num_resources  = ARRAY_SIZE(omap2_mcspi1_resources),
 166         .resource       = omap2_mcspi1_resources,
 167         .dev            = {
 168                 .platform_data = &omap2_mcspi1_config,
 169         },
 170 };
 171
 172 static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
 173         .num_cs         = 2,
 174 };
 175
 176 static struct resource omap2_mcspi2_resources[] = {
 177         {
 178                 .start          = OMAP2_MCSPI2_BASE,
 179                 .end            = OMAP2_MCSPI2_BASE + 0xff,
 180                 .flags          = IORESOURCE_MEM,
 181         },
 182 };
 183
 184 struct platform_device omap2_mcspi2 = {
 185         .name           = "omap2_mcspi",
 186         .id             = 2,
 187         .num_resources  = ARRAY_SIZE(omap2_mcspi2_resources),
 188         .resource       = omap2_mcspi2_resources,
 189         .dev            = {
 190                 .platform_data = &omap2_mcspi2_config,
 191         },
 192 };
 193
 194 static void omap_init_mcspi(void)
 195 {
 196         platform_device_register(&omap2_mcspi1);
 197         platform_device_register(&omap2_mcspi2);
 198 }
 199
 200 #else
 201 static inline void omap_init_mcspi(void) {}
 202 #endif
 203
 204 /*-------------------------------------------------------------------------*/
 205
 206 static int __init omap2_init_devices(void)
 207 {
 208         /* please keep these calls, and their implementations above,
 209          * in alphabetical order so they're easier to sort through.
 210          */
 211         omap_init_i2c();
 212         omap_init_mbox();
 213         omap_init_mcspi();
 214         omap_init_sti();
 215
 216         return 0;
 217 }
 218 arch_initcall(omap2_init_devices);