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/omap4-keypad.h>
  22 #include <linux/platform_data/mailbox-omap.h>
  23
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/map.h>
  26
  27 #include <linux/omap-dma.h>
  28
  29 #include "iomap.h"
  30 #include "omap_hwmod.h"
  31 #include "omap_device.h"
  32 #include "omap4-keypad.h"
  33
  34 #include "soc.h"
  35 #include "common.h"
  36 #include "mux.h"
  37 #include "control.h"
  38 #include "devices.h"
  39 #include "display.h"
  40
  41 #define L3_MODULES_MAX_LEN 12
  42 #define L3_MODULES 3
  43
  44 static int __init omap3_l3_init(void)
  45 {
  46         struct omap_hwmod *oh;
  47         struct platform_device *pdev;
  48         char oh_name[L3_MODULES_MAX_LEN];
  49
  50         /*
  51          * To avoid code running on other OMAPs in
  52          * multi-omap builds
  53          */
  54         if (!(cpu_is_omap34xx()))
  55                 return -ENODEV;
  56
  57         snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");
  58
  59         oh = omap_hwmod_lookup(oh_name);
  60
  61         if (!oh)
  62                 pr_err("could not look up %s\n", oh_name);
  63
  64         pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0);
  65
  66         WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
  67
  68         return PTR_RET(pdev);
  69 }
  70 omap_postcore_initcall(omap3_l3_init);
  71
  72 static int __init omap4_l3_init(void)
  73 {
  74         int i;
  75         struct omap_hwmod *oh[3];
  76         struct platform_device *pdev;
  77         char oh_name[L3_MODULES_MAX_LEN];
  78
  79         /* If dtb is there, the devices will be created dynamically */
  80         if (of_have_populated_dt())
  81                 return -ENODEV;
  82
  83         /*
  84          * To avoid code running on other OMAPs in
  85          * multi-omap builds
  86          */
  87         if (!cpu_is_omap44xx() && !soc_is_omap54xx())
  88                 return -ENODEV;
  89
  90         for (i = 0; i < L3_MODULES; i++) {
  91                 snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main_%d", i+1);
  92
  93                 oh[i] = omap_hwmod_lookup(oh_name);
  94                 if (!(oh[i]))
  95                         pr_err("could not look up %s\n", oh_name);
  96         }
  97
  98         pdev = omap_device_build_ss("omap_l3_noc", 0, oh, 3, NULL, 0);
  99
 100         WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
 101
 102         return PTR_RET(pdev);
 103 }
 104 omap_postcore_initcall(omap4_l3_init);
 105
 106 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
 107
 108 static struct resource omap2cam_resources[] = {
 109         {
 110                 .start          = OMAP24XX_CAMERA_BASE,
 111                 .end            = OMAP24XX_CAMERA_BASE + 0xfff,
 112                 .flags          = IORESOURCE_MEM,
 113         },
 114         {
 115                 .start          = 24 + OMAP_INTC_START,
 116                 .flags          = IORESOURCE_IRQ,
 117         }
 118 };
 119
 120 static struct platform_device omap2cam_device = {
 121         .name           = "omap24xxcam",
 122         .id             = -1,
 123         .num_resources  = ARRAY_SIZE(omap2cam_resources),
 124         .resource       = omap2cam_resources,
 125 };
 126 #endif
 127
 128 #if defined(CONFIG_IOMMU_API)
 129
 130 #include <linux/platform_data/iommu-omap.h>
 131
 132 static struct resource omap3isp_resources[] = {
 133         {
 134                 .start          = OMAP3430_ISP_BASE,
 135                 .end            = OMAP3430_ISP_END,
 136                 .flags          = IORESOURCE_MEM,
 137         },
 138         {
 139                 .start          = OMAP3430_ISP_CCP2_BASE,
 140                 .end            = OMAP3430_ISP_CCP2_END,
 141                 .flags          = IORESOURCE_MEM,
 142         },
 143         {
 144                 .start          = OMAP3430_ISP_CCDC_BASE,
 145                 .end            = OMAP3430_ISP_CCDC_END,
 146                 .flags          = IORESOURCE_MEM,
 147         },
 148         {
 149                 .start          = OMAP3430_ISP_HIST_BASE,
 150                 .end            = OMAP3430_ISP_HIST_END,
 151                 .flags          = IORESOURCE_MEM,
 152         },
 153         {
 154                 .start          = OMAP3430_ISP_H3A_BASE,
 155                 .end            = OMAP3430_ISP_H3A_END,
 156                 .flags          = IORESOURCE_MEM,
 157         },
 158         {
 159                 .start          = OMAP3430_ISP_PREV_BASE,
 160                 .end            = OMAP3430_ISP_PREV_END,
 161                 .flags          = IORESOURCE_MEM,
 162         },
 163         {
 164                 .start          = OMAP3430_ISP_RESZ_BASE,
 165                 .end            = OMAP3430_ISP_RESZ_END,
 166                 .flags          = IORESOURCE_MEM,
 167         },
 168         {
 169                 .start          = OMAP3430_ISP_SBL_BASE,
 170                 .end            = OMAP3430_ISP_SBL_END,
 171                 .flags          = IORESOURCE_MEM,
 172         },
 173         {
 174                 .start          = OMAP3430_ISP_CSI2A_REGS1_BASE,
 175                 .end            = OMAP3430_ISP_CSI2A_REGS1_END,
 176                 .flags          = IORESOURCE_MEM,
 177         },
 178         {
 179                 .start          = OMAP3430_ISP_CSIPHY2_BASE,
 180                 .end            = OMAP3430_ISP_CSIPHY2_END,
 181                 .flags          = IORESOURCE_MEM,
 182         },
 183         {
 184                 .start          = OMAP3630_ISP_CSI2A_REGS2_BASE,
 185                 .end            = OMAP3630_ISP_CSI2A_REGS2_END,
 186                 .flags          = IORESOURCE_MEM,
 187         },
 188         {
 189                 .start          = OMAP3630_ISP_CSI2C_REGS1_BASE,
 190                 .end            = OMAP3630_ISP_CSI2C_REGS1_END,
 191                 .flags          = IORESOURCE_MEM,
 192         },
 193         {
 194                 .start          = OMAP3630_ISP_CSIPHY1_BASE,
 195                 .end            = OMAP3630_ISP_CSIPHY1_END,
 196                 .flags          = IORESOURCE_MEM,
 197         },
 198         {
 199                 .start          = OMAP3630_ISP_CSI2C_REGS2_BASE,
 200                 .end            = OMAP3630_ISP_CSI2C_REGS2_END,
 201                 .flags          = IORESOURCE_MEM,
 202         },
 203         {
 204                 .start          = OMAP343X_CTRL_BASE + OMAP343X_CONTROL_CSIRXFE,
 205                 .end            = OMAP343X_CTRL_BASE + OMAP343X_CONTROL_CSIRXFE + 3,
 206                 .flags          = IORESOURCE_MEM,
 207         },
 208         {
 209                 .start          = OMAP343X_CTRL_BASE + OMAP3630_CONTROL_CAMERA_PHY_CTRL,
 210                 .end            = OMAP343X_CTRL_BASE + OMAP3630_CONTROL_CAMERA_PHY_CTRL + 3,
 211                 .flags          = IORESOURCE_MEM,
 212         },
 213         {
 214                 .start          = 24 + OMAP_INTC_START,
 215                 .flags          = IORESOURCE_IRQ,
 216         }
 217 };
 218
 219 static struct platform_device omap3isp_device = {
 220         .name           = "omap3isp",
 221         .id             = -1,
 222         .num_resources  = ARRAY_SIZE(omap3isp_resources),
 223         .resource       = omap3isp_resources,
 224 };
 225
 226 static struct omap_iommu_arch_data omap3_isp_iommu = {
 227         .name = "mmu_isp",
 228 };
 229
 230 int omap3_init_camera(struct isp_platform_data *pdata)
 231 {
 232         if (of_have_populated_dt())
 233                 omap3_isp_iommu.name = "480bd400.mmu";
 234
 235         omap3isp_device.dev.platform_data = pdata;
 236         omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu;
 237
 238         return platform_device_register(&omap3isp_device);
 239 }
 240
 241 #else /* !CONFIG_IOMMU_API */
 242
 243 int omap3_init_camera(struct isp_platform_data *pdata)
 244 {
 245         return 0;
 246 }
 247
 248 #endif
 249
 250 static inline void omap_init_camera(void)
 251 {
 252 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
 253         if (cpu_is_omap24xx())
 254                 platform_device_register(&omap2cam_device);
 255 #endif
 256 }
 257
 258 int __init omap4_keyboard_init(struct omap4_keypad_platform_data
 259                         *sdp4430_keypad_data, struct omap_board_data *bdata)
 260 {
 261         struct platform_device *pdev;
 262         struct omap_hwmod *oh;
 263         struct omap4_keypad_platform_data *keypad_data;
 264         unsigned int id = -1;
 265         char *oh_name = "kbd";
 266         char *name = "omap4-keypad";
 267
 268         oh = omap_hwmod_lookup(oh_name);
 269         if (!oh) {
 270                 pr_err("Could not look up %s\n", oh_name);
 271                 return -ENODEV;
 272         }
 273
 274         keypad_data = sdp4430_keypad_data;
 275
 276         pdev = omap_device_build(name, id, oh, keypad_data,
 277                                  sizeof(struct omap4_keypad_platform_data));
 278
 279         if (IS_ERR(pdev)) {
 280                 WARN(1, "Can't build omap_device for %s:%s.\n",
 281                                                 name, oh->name);
 282                 return PTR_ERR(pdev);
 283         }
 284         oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt);
 285
 286         return 0;
 287 }
 288
 289 #if defined(CONFIG_OMAP2PLUS_MBOX) || defined(CONFIG_OMAP2PLUS_MBOX_MODULE)
 290 static inline void __init omap_init_mbox(void)
 291 {
 292         struct omap_hwmod *oh;
 293         struct platform_device *pdev;
 294         struct omap_mbox_pdata *pdata;
 295
 296         oh = omap_hwmod_lookup("mailbox");
 297         if (!oh) {
 298                 pr_err("%s: unable to find hwmod\n", __func__);
 299                 return;
 300         }
 301         if (!oh->dev_attr) {
 302                 pr_err("%s: hwmod doesn't have valid attrs\n", __func__);
 303                 return;
 304         }
 305
 306         pdata = (struct omap_mbox_pdata *)oh->dev_attr;
 307         pdev = omap_device_build("omap-mailbox", -1, oh, pdata, sizeof(*pdata));
 308         WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
 309                                                 __func__, PTR_ERR(pdev));
 310 }
 311 #else
 312 static inline void omap_init_mbox(void) { }
 313 #endif /* CONFIG_OMAP2PLUS_MBOX */
 314
 315 static inline void omap_init_sti(void) {}
 316
 317 #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
 318
 319 static struct platform_device omap_pcm = {
 320         .name   = "omap-pcm-audio",
 321         .id     = -1,
 322 };
 323
 324 static void omap_init_audio(void)
 325 {
 326         platform_device_register(&omap_pcm);
 327 }
 328
 329 #else
 330 static inline void omap_init_audio(void) {}
 331 #endif
 332
 333 #if defined(CONFIG_SND_OMAP_SOC_OMAP_HDMI) || \
 334                 defined(CONFIG_SND_OMAP_SOC_OMAP_HDMI_MODULE)
 335
 336 static struct platform_device omap_hdmi_audio = {
 337         .name   = "omap-hdmi-audio",
 338         .id     = -1,
 339 };
 340
 341 static void __init omap_init_hdmi_audio(void)
 342 {
 343         struct omap_hwmod *oh;
 344         struct platform_device *pdev;
 345
 346         oh = omap_hwmod_lookup("dss_hdmi");
 347         if (!oh)
 348                 return;
 349
 350         pdev = omap_device_build("omap-hdmi-audio-dai", -1, oh, NULL, 0);
 351         WARN(IS_ERR(pdev),
 352              "Can't build omap_device for omap-hdmi-audio-dai.\n");
 353
 354         platform_device_register(&omap_hdmi_audio);
 355 }
 356 #else
 357 static inline void omap_init_hdmi_audio(void) {}
 358 #endif
 359
 360 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
 361
 362 #include <linux/platform_data/spi-omap2-mcspi.h>
 363
 364 static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
 365 {
 366         struct platform_device *pdev;
 367         char *name = "omap2_mcspi";
 368         struct omap2_mcspi_platform_config *pdata;
 369         static int spi_num;
 370         struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
 371
 372         pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
 373         if (!pdata) {
 374                 pr_err("Memory allocation for McSPI device failed\n");
 375                 return -ENOMEM;
 376         }
 377
 378         pdata->num_cs = mcspi_attrib->num_chipselect;
 379         switch (oh->class->rev) {
 380         case OMAP2_MCSPI_REV:
 381         case OMAP3_MCSPI_REV:
 382                         pdata->regs_offset = 0;
 383                         break;
 384         case OMAP4_MCSPI_REV:
 385                         pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
 386                         break;
 387         default:
 388                         pr_err("Invalid McSPI Revision value\n");
 389                         kfree(pdata);
 390                         return -EINVAL;
 391         }
 392
 393         spi_num++;
 394         pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata));
 395         WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
 396                                 name, oh->name);
 397         kfree(pdata);
 398         return 0;
 399 }
 400
 401 static void omap_init_mcspi(void)
 402 {
 403         omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
 404 }
 405
 406 #else
 407 static inline void omap_init_mcspi(void) {}
 408 #endif
 409
 410 /**
 411  * omap_init_rng - bind the RNG hwmod to the RNG omap_device
 412  *
 413  * Bind the RNG hwmod to the RNG omap_device.  No return value.
 414  */
 415 static void omap_init_rng(void)
 416 {
 417         struct omap_hwmod *oh;
 418         struct platform_device *pdev;
 419
 420         oh = omap_hwmod_lookup("rng");
 421         if (!oh)
 422                 return;
 423
 424         pdev = omap_device_build("omap_rng", -1, oh, NULL, 0);
 425         WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
 426 }
 427
 428 static void __init omap_init_sham(void)
 429 {
 430         struct omap_hwmod *oh;
 431         struct platform_device *pdev;
 432
 433         oh = omap_hwmod_lookup("sham");
 434         if (!oh)
 435                 return;
 436
 437         pdev = omap_device_build("omap-sham", -1, oh, NULL, 0);
 438         WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n");
 439 }
 440
 441 static void __init omap_init_aes(void)
 442 {
 443         struct omap_hwmod *oh;
 444         struct platform_device *pdev;
 445
 446         oh = omap_hwmod_lookup("aes");
 447         if (!oh)
 448                 return;
 449
 450         pdev = omap_device_build("omap-aes", -1, oh, NULL, 0);
 451         WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n");
 452 }
 453
 454 /*-------------------------------------------------------------------------*/
 455
 456 #if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
 457         defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
 458 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
 459 static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
 460 };
 461 #else
 462 static struct resource omap_vout_resource[2] = {
 463 };
 464 #endif
 465
 466 static struct platform_device omap_vout_device = {
 467         .name           = "omap_vout",
 468         .num_resources  = ARRAY_SIZE(omap_vout_resource),
 469         .resource       = &omap_vout_resource[0],
 470         .id             = -1,
 471 };
 472
 473 int __init omap_init_vout(void)
 474 {
 475         return platform_device_register(&omap_vout_device);
 476 }
 477 #else
 478 int __init omap_init_vout(void) { return 0; }
 479 #endif
 480
 481 /*-------------------------------------------------------------------------*/
 482
 483 static int __init omap2_init_devices(void)
 484 {
 485         /* Enable dummy states for those platforms without pinctrl support */
 486         if (!of_have_populated_dt())
 487                 pinctrl_provide_dummies();
 488
 489         /*
 490          * please keep these calls, and their implementations above,
 491          * in alphabetical order so they're easier to sort through.
 492          */
 493         omap_init_audio();
 494         omap_init_camera();
 495         omap_init_hdmi_audio();
 496         omap_init_mbox();
 497         /* If dtb is there, the devices will be created dynamically */
 498         if (!of_have_populated_dt()) {
 499                 omap_init_mcspi();
 500                 omap_init_sham();
 501                 omap_init_aes();
 502                 omap_init_rng();
 503         }
 504         omap_init_sti();
 505
 506         return 0;
 507 }
 508 omap_arch_initcall(omap2_init_devices);