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