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