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_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
  29
  30 static struct resource cam_resources[] = {
  31         {
  32                 .start          = OMAP24XX_CAMERA_BASE,
  33                 .end            = OMAP24XX_CAMERA_BASE + 0xfff,
  34                 .flags          = IORESOURCE_MEM,
  35         },
  36         {
  37                 .start          = INT_24XX_CAM_IRQ,
  38                 .flags          = IORESOURCE_IRQ,
  39         }
  40 };
  41
  42 static struct platform_device omap_cam_device = {
  43         .name           = "omap24xxcam",
  44         .id             = -1,
  45         .num_resources  = ARRAY_SIZE(cam_resources),
  46         .resource       = cam_resources,
  47 };
  48
  49 static inline void omap_init_camera(void)
  50 {
  51         platform_device_register(&omap_cam_device);
  52 }
  53 #else
  54 static inline void omap_init_camera(void)
  55 {
  56 }
  57 #endif
  58
  59 #if     !defined(CONFIG_ARCH_OMAP243X)
  60 #if     defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
  61
  62 #define OMAP2_I2C_BASE2         0x48072000
  63 #define OMAP2_I2C_INT2          57
  64
  65 static u32 omap2_i2c2_clkrate   = 100;
  66 static struct resource i2c_resources2[] = {
  67         {
  68                 .start          = OMAP2_I2C_BASE2,
  69                 .end            = OMAP2_I2C_BASE2 + 0x3f,
  70                 .flags          = IORESOURCE_MEM,
  71         },
  72         {
  73                 .start          = OMAP2_I2C_INT2,
  74                 .flags          = IORESOURCE_IRQ,
  75         },
  76 };
  77
  78 static struct platform_device omap_i2c_device2 = {
  79         .name           = "i2c_omap",
  80         .id             = 2,
  81         .num_resources  = ARRAY_SIZE(i2c_resources2),
  82         .resource       = i2c_resources2,
  83         .dev            = {
  84                 .platform_data  = &omap2_i2c2_clkrate,
  85         },
  86 };
  87
  88 /* See also arch/arm/plat-omap/devices.c for first I2C on 24xx */
  89 static void omap_init_i2c(void)
  90 {
  91         /* REVISIT: Second I2C not in use on H4? */
  92         if (machine_is_omap_h4())
  93                 return;
  94
  95         omap_cfg_reg(J15_24XX_I2C2_SCL);
  96         omap_cfg_reg(H19_24XX_I2C2_SDA);
  97
  98         (void) platform_device_register(&omap_i2c_device2);
  99 }
 100
 101 #else
 102
 103 static void omap_init_i2c(void) {}
 104
 105 #endif
 106 #endif
 107
 108 #if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
 109 #define OMAP2_MBOX_BASE         IO_ADDRESS(OMAP24XX_MAILBOX_BASE)
 110
 111 static struct resource mbox_resources[] = {
 112         {
 113                 .start          = OMAP2_MBOX_BASE,
 114                 .end            = OMAP2_MBOX_BASE + 0x11f,
 115                 .flags          = IORESOURCE_MEM,
 116         },
 117         {
 118                 .start          = INT_24XX_MAIL_U0_MPU,
 119                 .flags          = IORESOURCE_IRQ,
 120         },
 121         {
 122                 .start          = INT_24XX_MAIL_U3_MPU,
 123                 .flags          = IORESOURCE_IRQ,
 124         },
 125 };
 126
 127 static struct platform_device mbox_device = {
 128         .name           = "mailbox",
 129         .id             = -1,
 130         .num_resources  = ARRAY_SIZE(mbox_resources),
 131         .resource       = mbox_resources,
 132 };
 133
 134 static inline void omap_init_mbox(void)
 135 {
 136         platform_device_register(&mbox_device);
 137 }
 138 #else
 139 static inline void omap_init_mbox(void) { }
 140 #endif
 141
 142 #if defined(CONFIG_OMAP_STI)
 143
 144 #define OMAP2_STI_BASE          IO_ADDRESS(0x48068000)
 145 #define OMAP2_STI_CHANNEL_BASE  0x54000000
 146 #define OMAP2_STI_IRQ           4
 147
 148 static struct resource sti_resources[] = {
 149         {
 150                 .start          = OMAP2_STI_BASE,
 151                 .end            = OMAP2_STI_BASE + 0x7ff,
 152                 .flags          = IORESOURCE_MEM,
 153         },
 154         {
 155                 .start          = OMAP2_STI_CHANNEL_BASE,
 156                 .end            = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1,
 157                 .flags          = IORESOURCE_MEM,
 158         },
 159         {
 160                 .start          = OMAP2_STI_IRQ,
 161                 .flags          = IORESOURCE_IRQ,
 162         }
 163 };
 164
 165 static struct platform_device sti_device = {
 166         .name           = "sti",
 167         .id             = -1,
 168         .num_resources  = ARRAY_SIZE(sti_resources),
 169         .resource       = sti_resources,
 170 };
 171
 172 static inline void omap_init_sti(void)
 173 {
 174         platform_device_register(&sti_device);
 175 }
 176 #else
 177 static inline void omap_init_sti(void) {}
 178 #endif
 179
 180 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
 181
 182 #include <asm/arch/mcspi.h>
 183
 184 #define OMAP2_MCSPI1_BASE               0x48098000
 185 #define OMAP2_MCSPI2_BASE               0x4809a000
 186
 187 static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
 188         .num_cs         = 4,
 189 };
 190
 191 static struct resource omap2_mcspi1_resources[] = {
 192         {
 193                 .start          = OMAP2_MCSPI1_BASE,
 194                 .end            = OMAP2_MCSPI1_BASE + 0xff,
 195                 .flags          = IORESOURCE_MEM,
 196         },
 197 };
 198
 199 struct platform_device omap2_mcspi1 = {
 200         .name           = "omap2_mcspi",
 201         .id             = 1,
 202         .num_resources  = ARRAY_SIZE(omap2_mcspi1_resources),
 203         .resource       = omap2_mcspi1_resources,
 204         .dev            = {
 205                 .platform_data = &omap2_mcspi1_config,
 206         },
 207 };
 208
 209 static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
 210         .num_cs         = 2,
 211 };
 212
 213 static struct resource omap2_mcspi2_resources[] = {
 214         {
 215                 .start          = OMAP2_MCSPI2_BASE,
 216                 .end            = OMAP2_MCSPI2_BASE + 0xff,
 217                 .flags          = IORESOURCE_MEM,
 218         },
 219 };
 220
 221 struct platform_device omap2_mcspi2 = {
 222         .name           = "omap2_mcspi",
 223         .id             = 2,
 224         .num_resources  = ARRAY_SIZE(omap2_mcspi2_resources),
 225         .resource       = omap2_mcspi2_resources,
 226         .dev            = {
 227                 .platform_data = &omap2_mcspi2_config,
 228         },
 229 };
 230
 231 static void omap_init_mcspi(void)
 232 {
 233         platform_device_register(&omap2_mcspi1);
 234         platform_device_register(&omap2_mcspi2);
 235 }
 236
 237 #else
 238 static inline void omap_init_mcspi(void) {}
 239 #endif
 240
 241 #ifdef CONFIG_SND_OMAP24XX_EAC
 242
 243 #define OMAP2_EAC_BASE                  0x48090000
 244
 245 static struct resource omap2_eac_resources[] = {
 246         {
 247                 .start          = OMAP2_EAC_BASE,
 248                 .end            = OMAP2_EAC_BASE + 0x109,
 249                 .flags          = IORESOURCE_MEM,
 250         },
 251 };
 252
 253 static struct platform_device omap2_eac_device = {
 254         .name           = "omap24xx-eac",
 255         .id             = -1,
 256         .num_resources  = ARRAY_SIZE(omap2_eac_resources),
 257         .resource       = omap2_eac_resources,
 258         .dev = {
 259                 .platform_data = NULL,
 260         },
 261 };
 262
 263 void omap_init_eac(struct eac_platform_data *pdata)
 264 {
 265         omap2_eac_device.dev.platform_data = pdata;
 266         platform_device_register(&omap2_eac_device);
 267 }
 268
 269 #else
 270 void omap_init_eac(struct eac_platform_data *pdata) {}
 271 #endif
 272
 273 /*-------------------------------------------------------------------------*/
 274
 275 static int __init omap2_init_devices(void)
 276 {
 277         /* please keep these calls, and their implementations above,
 278          * in alphabetical order so they're easier to sort through.
 279          */
 280         omap_init_camera();
 281         if (!cpu_is_omap2430()) {
 282                 omap_init_i2c();
 283         }
 284         omap_init_mbox();
 285         omap_init_mcspi();
 286         omap_init_sti();
 287
 288         return 0;
 289 }
 290 arch_initcall(omap2_init_devices);