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 #include <linux/gpio.h>
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/io.h>
  16 #include <linux/clk.h>
  17 #include <linux/err.h>
  18 #include <linux/slab.h>
  19 #include <linux/of.h>
  20 #include <linux/pinctrl/machine.h>
  21 #include <linux/platform_data/mailbox-omap.h>
  22
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/map.h>
  25
  26 #include <linux/omap-dma.h>
  27
  28 #include "iomap.h"
  29 #include "omap_hwmod.h"
  30 #include "omap_device.h"
  31
  32 #include "soc.h"
  33 #include "common.h"
  34 #include "mux.h"
  35 #include "control.h"
  36 #include "devices.h"
  37 #include "display.h"
  38
  39 #define L3_MODULES_MAX_LEN 12
  40 #define L3_MODULES 3
  41
  42 static int __init omap3_l3_init(void)
  43 {
  44         struct omap_hwmod *oh;
  45         struct platform_device *pdev;
  46         char oh_name[L3_MODULES_MAX_LEN];
  47
  48         /*
  49          * To avoid code running on other OMAPs in
  50          * multi-omap builds
  51          */
  52         if (!(cpu_is_omap34xx()) || of_have_populated_dt())
  53                 return -ENODEV;
  54
  55         snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");
  56
  57         oh = omap_hwmod_lookup(oh_name);
  58
  59         if (!oh)
  60                 pr_err("could not look up %s\n", oh_name);
  61
  62         pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0);
  63
  64         WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
  65
  66         return PTR_RET(pdev);
  67 }
  68 omap_postcore_initcall(omap3_l3_init);
  69
  70 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
  71
  72 static struct resource omap2cam_resources[] = {
  73         {
  74                 .start          = OMAP24XX_CAMERA_BASE,
  75                 .end            = OMAP24XX_CAMERA_BASE + 0xfff,
  76                 .flags          = IORESOURCE_MEM,
  77         },
  78         {
  79                 .start          = 24 + OMAP_INTC_START,
  80                 .flags          = IORESOURCE_IRQ,
  81         }
  82 };
  83
  84 static struct platform_device omap2cam_device = {
  85         .name           = "omap24xxcam",
  86         .id             = -1,
  87         .num_resources  = ARRAY_SIZE(omap2cam_resources),
  88         .resource       = omap2cam_resources,
  89 };
  90 #endif
  91
  92 #if defined(CONFIG_IOMMU_API)
  93
  94 #include <linux/platform_data/iommu-omap.h>
  95
  96 static struct resource omap3isp_resources[] = {
  97         {
  98                 .start          = OMAP3430_ISP_BASE,
  99                 .end            = OMAP3430_ISP_END,
 100                 .flags          = IORESOURCE_MEM,
 101         },
 102         {
 103                 .start          = OMAP3430_ISP_CCP2_BASE,
 104                 .end            = OMAP3430_ISP_CCP2_END,
 105                 .flags          = IORESOURCE_MEM,
 106         },
 107         {
 108                 .start          = OMAP3430_ISP_CCDC_BASE,
 109                 .end            = OMAP3430_ISP_CCDC_END,
 110                 .flags          = IORESOURCE_MEM,
 111         },
 112         {
 113                 .start          = OMAP3430_ISP_HIST_BASE,
 114                 .end            = OMAP3430_ISP_HIST_END,
 115                 .flags          = IORESOURCE_MEM,
 116         },
 117         {
 118                 .start          = OMAP3430_ISP_H3A_BASE,
 119                 .end            = OMAP3430_ISP_H3A_END,
 120                 .flags          = IORESOURCE_MEM,
 121         },
 122         {
 123                 .start          = OMAP3430_ISP_PREV_BASE,
 124                 .end            = OMAP3430_ISP_PREV_END,
 125                 .flags          = IORESOURCE_MEM,
 126         },
 127         {
 128                 .start          = OMAP3430_ISP_RESZ_BASE,
 129                 .end            = OMAP3430_ISP_RESZ_END,
 130                 .flags          = IORESOURCE_MEM,
 131         },
 132         {
 133                 .start          = OMAP3430_ISP_SBL_BASE,
 134                 .end            = OMAP3430_ISP_SBL_END,
 135                 .flags          = IORESOURCE_MEM,
 136         },
 137         {
 138                 .start          = OMAP3430_ISP_CSI2A_REGS1_BASE,
 139                 .end            = OMAP3430_ISP_CSI2A_REGS1_END,
 140                 .flags          = IORESOURCE_MEM,
 141         },
 142         {
 143                 .start          = OMAP3430_ISP_CSIPHY2_BASE,
 144                 .end            = OMAP3430_ISP_CSIPHY2_END,
 145                 .flags          = IORESOURCE_MEM,
 146         },
 147         {
 148                 .start          = OMAP3630_ISP_CSI2A_REGS2_BASE,
 149                 .end            = OMAP3630_ISP_CSI2A_REGS2_END,
 150                 .flags          = IORESOURCE_MEM,
 151         },
 152         {
 153                 .start          = OMAP3630_ISP_CSI2C_REGS1_BASE,
 154                 .end            = OMAP3630_ISP_CSI2C_REGS1_END,
 155                 .flags          = IORESOURCE_MEM,
 156         },
 157         {
 158                 .start          = OMAP3630_ISP_CSIPHY1_BASE,
 159                 .end            = OMAP3630_ISP_CSIPHY1_END,
 160                 .flags          = IORESOURCE_MEM,
 161         },
 162         {
 163                 .start          = OMAP3630_ISP_CSI2C_REGS2_BASE,
 164                 .end            = OMAP3630_ISP_CSI2C_REGS2_END,
 165                 .flags          = IORESOURCE_MEM,
 166         },
 167         {
 168                 .start          = OMAP343X_CTRL_BASE + OMAP343X_CONTROL_CSIRXFE,
 169                 .end            = OMAP343X_CTRL_BASE + OMAP343X_CONTROL_CSIRXFE + 3,
 170                 .flags          = IORESOURCE_MEM,
 171         },
 172         {
 173                 .start          = OMAP343X_CTRL_BASE + OMAP3630_CONTROL_CAMERA_PHY_CTRL,
 174                 .end            = OMAP343X_CTRL_BASE + OMAP3630_CONTROL_CAMERA_PHY_CTRL + 3,
 175                 .flags          = IORESOURCE_MEM,
 176         },
 177         {
 178                 .start          = 24 + OMAP_INTC_START,
 179                 .flags          = IORESOURCE_IRQ,
 180         }
 181 };
 182
 183 static struct platform_device omap3isp_device = {
 184         .name           = "omap3isp",
 185         .id             = -1,
 186         .num_resources  = ARRAY_SIZE(omap3isp_resources),
 187         .resource       = omap3isp_resources,
 188 };
 189
 190 static struct omap_iommu_arch_data omap3_isp_iommu = {
 191         .name = "mmu_isp",
 192 };
 193
 194 int omap3_init_camera(struct isp_platform_data *pdata)
 195 {
 196         if (of_have_populated_dt())
 197                 omap3_isp_iommu.name = "480bd400.mmu";
 198
 199         omap3isp_device.dev.platform_data = pdata;
 200         omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu;
 201
 202         return platform_device_register(&omap3isp_device);
 203 }
 204
 205 #else /* !CONFIG_IOMMU_API */
 206
 207 int omap3_init_camera(struct isp_platform_data *pdata)
 208 {
 209         return 0;
 210 }
 211
 212 #endif
 213
 214 static inline void omap_init_camera(void)
 215 {
 216 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
 217         if (cpu_is_omap24xx())
 218                 platform_device_register(&omap2cam_device);
 219 #endif
 220 }
 221
 222 #if defined(CONFIG_OMAP2PLUS_MBOX) || defined(CONFIG_OMAP2PLUS_MBOX_MODULE)
 223 static inline void __init omap_init_mbox(void)
 224 {
 225         struct omap_hwmod *oh;
 226         struct platform_device *pdev;
 227         struct omap_mbox_pdata *pdata;
 228
 229         oh = omap_hwmod_lookup("mailbox");
 230         if (!oh) {
 231                 pr_err("%s: unable to find hwmod\n", __func__);
 232                 return;
 233         }
 234         if (!oh->dev_attr) {
 235                 pr_err("%s: hwmod doesn't have valid attrs\n", __func__);
 236                 return;
 237         }
 238
 239         pdata = (struct omap_mbox_pdata *)oh->dev_attr;
 240         pdev = omap_device_build("omap-mailbox", -1, oh, pdata, sizeof(*pdata));
 241         WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
 242                                                 __func__, PTR_ERR(pdev));
 243 }
 244 #else
 245 static inline void omap_init_mbox(void) { }
 246 #endif /* CONFIG_OMAP2PLUS_MBOX */
 247
 248 static inline void omap_init_sti(void) {}
 249
 250 #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
 251
 252 static struct platform_device omap_pcm = {
 253         .name   = "omap-pcm-audio",
 254         .id     = -1,
 255 };
 256
 257 static void omap_init_audio(void)
 258 {
 259         platform_device_register(&omap_pcm);
 260 }
 261
 262 #else
 263 static inline void omap_init_audio(void) {}
 264 #endif
 265
 266 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
 267
 268 #include <linux/platform_data/spi-omap2-mcspi.h>
 269
 270 static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
 271 {
 272         struct platform_device *pdev;
 273         char *name = "omap2_mcspi";
 274         struct omap2_mcspi_platform_config *pdata;
 275         static int spi_num;
 276         struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
 277
 278         pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
 279         if (!pdata) {
 280                 pr_err("Memory allocation for McSPI device failed\n");
 281                 return -ENOMEM;
 282         }
 283
 284         pdata->num_cs = mcspi_attrib->num_chipselect;
 285         switch (oh->class->rev) {
 286         case OMAP2_MCSPI_REV:
 287         case OMAP3_MCSPI_REV:
 288                         pdata->regs_offset = 0;
 289                         break;
 290         case OMAP4_MCSPI_REV:
 291                         pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
 292                         break;
 293         default:
 294                         pr_err("Invalid McSPI Revision value\n");
 295                         kfree(pdata);
 296                         return -EINVAL;
 297         }
 298
 299         spi_num++;
 300         pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata));
 301         WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
 302                                 name, oh->name);
 303         kfree(pdata);
 304         return 0;
 305 }
 306
 307 static void omap_init_mcspi(void)
 308 {
 309         omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
 310 }
 311
 312 #else
 313 static inline void omap_init_mcspi(void) {}
 314 #endif
 315
 316 /**
 317  * omap_init_rng - bind the RNG hwmod to the RNG omap_device
 318  *
 319  * Bind the RNG hwmod to the RNG omap_device.  No return value.
 320  */
 321 static void omap_init_rng(void)
 322 {
 323         struct omap_hwmod *oh;
 324         struct platform_device *pdev;
 325
 326         oh = omap_hwmod_lookup("rng");
 327         if (!oh)
 328                 return;
 329
 330         pdev = omap_device_build("omap_rng", -1, oh, NULL, 0);
 331         WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
 332 }
 333
 334 static void __init omap_init_sham(void)
 335 {
 336         struct omap_hwmod *oh;
 337         struct platform_device *pdev;
 338
 339         oh = omap_hwmod_lookup("sham");
 340         if (!oh)
 341                 return;
 342
 343         pdev = omap_device_build("omap-sham", -1, oh, NULL, 0);
 344         WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n");
 345 }
 346
 347 static void __init omap_init_aes(void)
 348 {
 349         struct omap_hwmod *oh;
 350         struct platform_device *pdev;
 351
 352         oh = omap_hwmod_lookup("aes");
 353         if (!oh)
 354                 return;
 355
 356         pdev = omap_device_build("omap-aes", -1, oh, NULL, 0);
 357         WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n");
 358 }
 359
 360 /*-------------------------------------------------------------------------*/
 361
 362 #if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
 363         defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
 364 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
 365 static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
 366 };
 367 #else
 368 static struct resource omap_vout_resource[2] = {
 369 };
 370 #endif
 371
 372 static struct platform_device omap_vout_device = {
 373         .name           = "omap_vout",
 374         .num_resources  = ARRAY_SIZE(omap_vout_resource),
 375         .resource       = &omap_vout_resource[0],
 376         .id             = -1,
 377 };
 378
 379 int __init omap_init_vout(void)
 380 {
 381         return platform_device_register(&omap_vout_device);
 382 }
 383 #else
 384 int __init omap_init_vout(void) { return 0; }
 385 #endif
 386
 387 /*-------------------------------------------------------------------------*/
 388
 389 static int __init omap2_init_devices(void)
 390 {
 391         /* Enable dummy states for those platforms without pinctrl support */
 392         if (!of_have_populated_dt())
 393                 pinctrl_provide_dummies();
 394
 395         /*
 396          * please keep these calls, and their implementations above,
 397          * in alphabetical order so they're easier to sort through.
 398          */
 399         omap_init_audio();
 400         omap_init_camera();
 401         /* If dtb is there, the devices will be created dynamically */
 402         if (!of_have_populated_dt()) {
 403                 omap_init_mbox();
 404                 omap_init_mcspi();
 405                 omap_init_sham();
 406                 omap_init_aes();
 407                 omap_init_rng();
 408         }
 409         omap_init_sti();
 410
 411         return 0;
 412 }
 413 omap_arch_initcall(omap2_init_devices);
 414
 415 static int __init omap_gpmc_init(void)
 416 {
 417         struct omap_hwmod *oh;
 418         struct platform_device *pdev;
 419         char *oh_name = "gpmc";
 420
 421         /*
 422          * if the board boots up with a populated DT, do not
 423          * manually add the device from this initcall
 424          */
 425         if (of_have_populated_dt())
 426                 return -ENODEV;
 427
 428         oh = omap_hwmod_lookup(oh_name);
 429         if (!oh) {
 430                 pr_err("Could not look up %s\n", oh_name);
 431                 return -ENODEV;
 432         }
 433
 434         pdev = omap_device_build("omap-gpmc", -1, oh, NULL, 0);
 435         WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
 436
 437         return PTR_RET(pdev);
 438 }
 439 omap_postcore_initcall(omap_gpmc_init);