release/src-rt-6.x/linux/linux-2.6/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         omap_cfg_reg(J15_24XX_I2C2_SCL);
  59         omap_cfg_reg(H19_24XX_I2C2_SDA);
  60         (void) platform_device_register(&omap_i2c_device2);
  61 }
  62
  63 #else
  64
  65 static void omap_init_i2c(void) {}
  66
  67 #endif
  68
  69 #if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
  70 #define OMAP2_MBOX_BASE         IO_ADDRESS(OMAP24XX_MAILBOX_BASE)
  71
  72 static struct resource mbox_resources[] = {
  73         {
  74                 .start          = OMAP2_MBOX_BASE,
  75                 .end            = OMAP2_MBOX_BASE + 0x11f,
  76                 .flags          = IORESOURCE_MEM,
  77         },
  78         {
  79                 .start          = INT_24XX_MAIL_U0_MPU,
  80                 .flags          = IORESOURCE_IRQ,
  81         },
  82         {
  83                 .start          = INT_24XX_MAIL_U3_MPU,
  84                 .flags          = IORESOURCE_IRQ,
  85         },
  86 };
  87
  88 static struct platform_device mbox_device = {
  89         .name           = "mailbox",
  90         .id             = -1,
  91         .num_resources  = ARRAY_SIZE(mbox_resources),
  92         .resource       = mbox_resources,
  93 };
  94
  95 static inline void omap_init_mbox(void)
  96 {
  97         platform_device_register(&mbox_device);
  98 }
  99 #else
 100 static inline void omap_init_mbox(void) { }
 101 #endif
 102
 103 #if defined(CONFIG_OMAP_STI)
 104
 105 #define OMAP2_STI_BASE          IO_ADDRESS(0x48068000)
 106 #define OMAP2_STI_CHANNEL_BASE  0x54000000
 107 #define OMAP2_STI_IRQ           4
 108
 109 static struct resource sti_resources[] = {
 110         {
 111                 .start          = OMAP2_STI_BASE,
 112                 .end            = OMAP2_STI_BASE + 0x7ff,
 113                 .flags          = IORESOURCE_MEM,
 114         },
 115         {
 116                 .start          = OMAP2_STI_CHANNEL_BASE,
 117                 .end            = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1,
 118                 .flags          = IORESOURCE_MEM,
 119         },
 120         {
 121                 .start          = OMAP2_STI_IRQ,
 122                 .flags          = IORESOURCE_IRQ,
 123         }
 124 };
 125
 126 static struct platform_device sti_device = {
 127         .name           = "sti",
 128         .id             = -1,
 129         .num_resources  = ARRAY_SIZE(sti_resources),
 130         .resource       = sti_resources,
 131 };
 132
 133 static inline void omap_init_sti(void)
 134 {
 135         platform_device_register(&sti_device);
 136 }
 137 #else
 138 static inline void omap_init_sti(void) {}
 139 #endif
 140
 141 #if defined(CONFIG_SPI_OMAP24XX)
 142
 143 #include <asm/arch/mcspi.h>
 144
 145 #define OMAP2_MCSPI1_BASE               0x48098000
 146 #define OMAP2_MCSPI2_BASE               0x4809a000
 147
 148 static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
 149         .num_cs         = 4,
 150 };
 151
 152 static struct resource omap2_mcspi1_resources[] = {
 153         {
 154                 .start          = OMAP2_MCSPI1_BASE,
 155                 .end            = OMAP2_MCSPI1_BASE + 0xff,
 156                 .flags          = IORESOURCE_MEM,
 157         },
 158 };
 159
 160 struct platform_device omap2_mcspi1 = {
 161         .name           = "omap2_mcspi",
 162         .id             = 1,
 163         .num_resources  = ARRAY_SIZE(omap2_mcspi1_resources),
 164         .resource       = omap2_mcspi1_resources,
 165         .dev            = {
 166                 .platform_data = &omap2_mcspi1_config,
 167         },
 168 };
 169
 170 static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
 171         .num_cs         = 2,
 172 };
 173
 174 static struct resource omap2_mcspi2_resources[] = {
 175         {
 176                 .start          = OMAP2_MCSPI2_BASE,
 177                 .end            = OMAP2_MCSPI2_BASE + 0xff,
 178                 .flags          = IORESOURCE_MEM,
 179         },
 180 };
 181
 182 struct platform_device omap2_mcspi2 = {
 183         .name           = "omap2_mcspi",
 184         .id             = 2,
 185         .num_resources  = ARRAY_SIZE(omap2_mcspi2_resources),
 186         .resource       = omap2_mcspi2_resources,
 187         .dev            = {
 188                 .platform_data = &omap2_mcspi2_config,
 189         },
 190 };
 191
 192 static void omap_init_mcspi(void)
 193 {
 194         platform_device_register(&omap2_mcspi1);
 195         platform_device_register(&omap2_mcspi2);
 196 }
 197
 198 #else
 199 static inline void omap_init_mcspi(void) {}
 200 #endif
 201
 202 /*-------------------------------------------------------------------------*/
 203
 204 static int __init omap2_init_devices(void)
 205 {
 206         /* please keep these calls, and their implementations above,
 207          * in alphabetical order so they're easier to sort through.
 208          */
 209         omap_init_i2c();
 210         omap_init_mbox();
 211         omap_init_mcspi();
 212         omap_init_sti();
 213
 214         return 0;
 215 }
 216 arch_initcall(omap2_init_devices);