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 #include <asm/arch/eac.h>
  27
  28 #if     defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
  29
  30 #define OMAP2_I2C_BASE2         0x48072000
  31 #define OMAP2_I2C_INT2          57
  32
  33 static struct resource i2c_resources2[] = {
  34         {
  35                 .start          = OMAP2_I2C_BASE2,
  36                 .end            = OMAP2_I2C_BASE2 + 0x3f,
  37                 .flags          = IORESOURCE_MEM,
  38         },
  39         {
  40                 .start          = OMAP2_I2C_INT2,
  41                 .flags          = IORESOURCE_IRQ,
  42         },
  43 };
  44
  45 static struct platform_device omap_i2c_device2 = {
  46         .name           = "i2c_omap",
  47         .id             = 2,
  48         .num_resources  = ARRAY_SIZE(i2c_resources2),
  49         .resource       = i2c_resources2,
  50 };
  51
  52 /* See also arch/arm/plat-omap/devices.c for first I2C on 24xx */
  53 static void omap_init_i2c(void)
  54 {
  55         /* REVISIT: Second I2C not in use on H4? */
  56         if (machine_is_omap_h4())
  57                 return;
  58
  59         if (!cpu_is_omap2430()) {
  60                 omap_cfg_reg(J15_24XX_I2C2_SCL);
  61                 omap_cfg_reg(H19_24XX_I2C2_SDA);
  62         }
  63         (void) platform_device_register(&omap_i2c_device2);
  64 }
  65
  66 #else
  67
  68 static void omap_init_i2c(void) {}
  69
  70 #endif
  71
  72 #if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
  73 #define OMAP2_MBOX_BASE         IO_ADDRESS(OMAP24XX_MAILBOX_BASE)
  74
  75 static struct resource mbox_resources[] = {
  76         {
  77                 .start          = OMAP2_MBOX_BASE,
  78                 .end            = OMAP2_MBOX_BASE + 0x11f,
  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 platform_device mbox_device = {
  92         .name           = "mailbox",
  93         .id             = -1,
  94         .num_resources  = ARRAY_SIZE(mbox_resources),
  95         .resource       = mbox_resources,
  96 };
  97
  98 static inline void omap_init_mbox(void)
  99 {
 100         platform_device_register(&mbox_device);
 101 }
 102 #else
 103 static inline void omap_init_mbox(void) { }
 104 #endif
 105
 106 #if defined(CONFIG_OMAP_STI)
 107
 108 #define OMAP2_STI_BASE          IO_ADDRESS(0x48068000)
 109 #define OMAP2_STI_CHANNEL_BASE  0x54000000
 110 #define OMAP2_STI_IRQ           4
 111
 112 static struct resource sti_resources[] = {
 113         {
 114                 .start          = OMAP2_STI_BASE,
 115                 .end            = OMAP2_STI_BASE + 0x7ff,
 116                 .flags          = IORESOURCE_MEM,
 117         },
 118         {
 119                 .start          = OMAP2_STI_CHANNEL_BASE,
 120                 .end            = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1,
 121                 .flags          = IORESOURCE_MEM,
 122         },
 123         {
 124                 .start          = OMAP2_STI_IRQ,
 125                 .flags          = IORESOURCE_IRQ,
 126         }
 127 };
 128
 129 static struct platform_device sti_device = {
 130         .name           = "sti",
 131         .id             = -1,
 132         .num_resources  = ARRAY_SIZE(sti_resources),
 133         .resource       = sti_resources,
 134 };
 135
 136 static inline void omap_init_sti(void)
 137 {
 138         platform_device_register(&sti_device);
 139 }
 140 #else
 141 static inline void omap_init_sti(void) {}
 142 #endif
 143
 144 #if defined(CONFIG_SPI_OMAP24XX)
 145
 146 #include <asm/arch/mcspi.h>
 147
 148 #define OMAP2_MCSPI1_BASE               0x48098000
 149 #define OMAP2_MCSPI2_BASE               0x4809a000
 150
 151 static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
 152         .num_cs         = 4,
 153 };
 154
 155 static struct resource omap2_mcspi1_resources[] = {
 156         {
 157                 .start          = OMAP2_MCSPI1_BASE,
 158                 .end            = OMAP2_MCSPI1_BASE + 0xff,
 159                 .flags          = IORESOURCE_MEM,
 160         },
 161 };
 162
 163 struct platform_device omap2_mcspi1 = {
 164         .name           = "omap2_mcspi",
 165         .id             = 1,
 166         .num_resources  = ARRAY_SIZE(omap2_mcspi1_resources),
 167         .resource       = omap2_mcspi1_resources,
 168         .dev            = {
 169                 .platform_data = &omap2_mcspi1_config,
 170         },
 171 };
 172
 173 static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
 174         .num_cs         = 2,
 175 };
 176
 177 static struct resource omap2_mcspi2_resources[] = {
 178         {
 179                 .start          = OMAP2_MCSPI2_BASE,
 180                 .end            = OMAP2_MCSPI2_BASE + 0xff,
 181                 .flags          = IORESOURCE_MEM,
 182         },
 183 };
 184
 185 struct platform_device omap2_mcspi2 = {
 186         .name           = "omap2_mcspi",
 187         .id             = 2,
 188         .num_resources  = ARRAY_SIZE(omap2_mcspi2_resources),
 189         .resource       = omap2_mcspi2_resources,
 190         .dev            = {
 191                 .platform_data = &omap2_mcspi2_config,
 192         },
 193 };
 194
 195 static void omap_init_mcspi(void)
 196 {
 197         platform_device_register(&omap2_mcspi1);
 198         platform_device_register(&omap2_mcspi2);
 199 }
 200
 201 #else
 202 static inline void omap_init_mcspi(void) {}
 203 #endif
 204
 205 #ifdef CONFIG_SND_OMAP24XX_EAC
 206
 207 #define OMAP2_EAC_BASE                  0x48090000
 208
 209 static struct resource omap2_eac_resources[] = {
 210         {
 211                 .start          = OMAP2_EAC_BASE,
 212                 .end            = OMAP2_EAC_BASE + 0x109,
 213                 .flags          = IORESOURCE_MEM,
 214         },
 215 };
 216
 217 static struct platform_device omap2_eac_device = {
 218         .name           = "omap24xx-eac",
 219         .id             = -1,
 220         .num_resources  = ARRAY_SIZE(omap2_eac_resources),
 221         .resource       = omap2_eac_resources,
 222         .dev = {
 223                 .platform_data = NULL,
 224         },
 225 };
 226
 227 void omap_init_eac(struct eac_platform_data *pdata)
 228 {
 229         omap2_eac_device.dev.platform_data = pdata;
 230         platform_device_register(&omap2_eac_device);
 231 }
 232
 233 #else
 234 void omap_init_eac(struct eac_platform_data *pdata) {}
 235 #endif
 236
 237 /*-------------------------------------------------------------------------*/
 238
 239 static int __init omap2_init_devices(void)
 240 {
 241         /* please keep these calls, and their implementations above,
 242          * in alphabetical order so they're easier to sort through.
 243          */
 244         omap_init_i2c();
 245         omap_init_mbox();
 246         omap_init_mcspi();
 247         omap_init_sti();
 248
 249         return 0;
 250 }
 251 arch_initcall(omap2_init_devices);