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 #include <linux/io.h>
  17 #include <linux/clk.h>
  18
  19 #include <mach/hardware.h>
  20 #include <asm/mach-types.h>
  21 #include <asm/mach/map.h>
  22
  23 #include <mach/control.h>
  24 #include <mach/tc.h>
  25 #include <mach/board.h>
  26 #include <mach/mux.h>
  27 #include <mach/gpio.h>
  28 #include <mach/eac.h>
  29 #include <mach/mmc.h>
  30
  31 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
  32
  33 static struct resource cam_resources[] = {
  34         {
  35                 .start          = OMAP24XX_CAMERA_BASE,
  36                 .end            = OMAP24XX_CAMERA_BASE + 0xfff,
  37                 .flags          = IORESOURCE_MEM,
  38         },
  39         {
  40                 .start          = INT_24XX_CAM_IRQ,
  41                 .flags          = IORESOURCE_IRQ,
  42         }
  43 };
  44
  45 static struct platform_device omap_cam_device = {
  46         .name           = "omap24xxcam",
  47         .id             = -1,
  48         .num_resources  = ARRAY_SIZE(cam_resources),
  49         .resource       = cam_resources,
  50 };
  51
  52 static inline void omap_init_camera(void)
  53 {
  54         platform_device_register(&omap_cam_device);
  55 }
  56
  57 #elif defined(CONFIG_VIDEO_OMAP3) || defined(CONFIG_VIDEO_OMAP3_MODULE)
  58
  59 static struct resource cam_resources[] = {
  60         {
  61                 .start          = OMAP34XX_CAMERA_BASE,
  62                 .end            = OMAP34XX_CAMERA_BASE + 0x1B70,
  63                 .flags          = IORESOURCE_MEM,
  64         },
  65         {
  66                 .start          = INT_34XX_CAM_IRQ,
  67                 .flags          = IORESOURCE_IRQ,
  68         }
  69 };
  70
  71 static struct platform_device omap_cam_device = {
  72         .name           = "omap34xxcam",
  73         .id             = -1,
  74         .num_resources  = ARRAY_SIZE(cam_resources),
  75         .resource       = cam_resources,
  76 };
  77
  78 static inline void omap_init_camera(void)
  79 {
  80         platform_device_register(&omap_cam_device);
  81 }
  82 #else
  83 static inline void omap_init_camera(void)
  84 {
  85 }
  86 #endif
  87
  88 #if defined(CONFIG_OMAP_MBOX_FWK) || defined(CONFIG_OMAP_MBOX_FWK_MODULE)
  89
  90 #define MBOX_REG_SIZE   0x120
  91
  92 static struct resource omap2_mbox_resources[] = {
  93         {
  94                 .start          = OMAP24XX_MAILBOX_BASE,
  95                 .end            = OMAP24XX_MAILBOX_BASE + MBOX_REG_SIZE - 1,
  96                 .flags          = IORESOURCE_MEM,
  97         },
  98         {
  99                 .start          = INT_24XX_MAIL_U0_MPU,
 100                 .flags          = IORESOURCE_IRQ,
 101         },
 102         {
 103                 .start          = INT_24XX_MAIL_U3_MPU,
 104                 .flags          = IORESOURCE_IRQ,
 105         },
 106 };
 107
 108 static struct resource omap3_mbox_resources[] = {
 109         {
 110                 .start          = OMAP34XX_MAILBOX_BASE,
 111                 .end            = OMAP34XX_MAILBOX_BASE + MBOX_REG_SIZE - 1,
 112                 .flags          = IORESOURCE_MEM,
 113         },
 114         {
 115                 .start          = INT_34XX_MAIL_U0_MPU,
 116                 .flags          = IORESOURCE_IRQ,
 117         },
 118 };
 119
 120 static struct platform_device mbox_device = {
 121         .name           = "omap2-mailbox",
 122         .id             = -1,
 123 };
 124
 125 static inline void omap_init_mbox(void)
 126 {
 127         if (cpu_is_omap2420()) {
 128                 mbox_device.num_resources = ARRAY_SIZE(omap2_mbox_resources);
 129                 mbox_device.resource = omap2_mbox_resources;
 130         } else if (cpu_is_omap3430()) {
 131                 mbox_device.num_resources = ARRAY_SIZE(omap3_mbox_resources);
 132                 mbox_device.resource = omap3_mbox_resources;
 133         } else {
 134                 return;
 135         }
 136         platform_device_register(&mbox_device);
 137 }
 138 #else
 139 static inline void omap_init_mbox(void) { }
 140 #endif /* CONFIG_OMAP_MBOX_FWK */
 141
 142 #if defined(CONFIG_OMAP_STI)
 143
 144 #if defined(CONFIG_ARCH_OMAP2)
 145
 146 #define OMAP2_STI_BASE          0x48068000
 147 #define OMAP2_STI_CHANNEL_BASE  0x54000000
 148 #define OMAP2_STI_IRQ           4
 149
 150 static struct resource sti_resources[] = {
 151         {
 152                 .start          = OMAP2_STI_BASE,
 153                 .end            = OMAP2_STI_BASE + 0x7ff,
 154                 .flags          = IORESOURCE_MEM,
 155         },
 156         {
 157                 .start          = OMAP2_STI_CHANNEL_BASE,
 158                 .end            = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1,
 159                 .flags          = IORESOURCE_MEM,
 160         },
 161         {
 162                 .start          = OMAP2_STI_IRQ,
 163                 .flags          = IORESOURCE_IRQ,
 164         }
 165 };
 166 #elif defined(CONFIG_ARCH_OMAP3)
 167
 168 #define OMAP3_SDTI_BASE         0x54500000
 169 #define OMAP3_SDTI_CHANNEL_BASE 0x54600000
 170
 171 static struct resource sti_resources[] = {
 172         {
 173                 .start          = OMAP3_SDTI_BASE,
 174                 .end            = OMAP3_SDTI_BASE + 0xFFF,
 175                 .flags          = IORESOURCE_MEM,
 176         },
 177         {
 178                 .start          = OMAP3_SDTI_CHANNEL_BASE,
 179                 .end            = OMAP3_SDTI_CHANNEL_BASE + SZ_1M - 1,
 180                 .flags          = IORESOURCE_MEM,
 181         }
 182 };
 183
 184 #endif
 185
 186 static struct platform_device sti_device = {
 187         .name           = "sti",
 188         .id             = -1,
 189         .num_resources  = ARRAY_SIZE(sti_resources),
 190         .resource       = sti_resources,
 191 };
 192
 193 static inline void omap_init_sti(void)
 194 {
 195         platform_device_register(&sti_device);
 196 }
 197 #else
 198 static inline void omap_init_sti(void) {}
 199 #endif
 200
 201 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
 202
 203 #include <mach/mcspi.h>
 204
 205 #define OMAP2_MCSPI1_BASE               0x48098000
 206 #define OMAP2_MCSPI2_BASE               0x4809a000
 207 #define OMAP2_MCSPI3_BASE               0x480b8000
 208 #define OMAP2_MCSPI4_BASE               0x480ba000
 209
 210 static struct omap2_mcspi_platform_config omap2_mcspi1_config = {
 211         .num_cs         = 4,
 212 };
 213
 214 static struct resource omap2_mcspi1_resources[] = {
 215         {
 216                 .start          = OMAP2_MCSPI1_BASE,
 217                 .end            = OMAP2_MCSPI1_BASE + 0xff,
 218                 .flags          = IORESOURCE_MEM,
 219         },
 220 };
 221
 222 static struct platform_device omap2_mcspi1 = {
 223         .name           = "omap2_mcspi",
 224         .id             = 1,
 225         .num_resources  = ARRAY_SIZE(omap2_mcspi1_resources),
 226         .resource       = omap2_mcspi1_resources,
 227         .dev            = {
 228                 .platform_data = &omap2_mcspi1_config,
 229         },
 230 };
 231
 232 static struct omap2_mcspi_platform_config omap2_mcspi2_config = {
 233         .num_cs         = 2,
 234 };
 235
 236 static struct resource omap2_mcspi2_resources[] = {
 237         {
 238                 .start          = OMAP2_MCSPI2_BASE,
 239                 .end            = OMAP2_MCSPI2_BASE + 0xff,
 240                 .flags          = IORESOURCE_MEM,
 241         },
 242 };
 243
 244 static struct platform_device omap2_mcspi2 = {
 245         .name           = "omap2_mcspi",
 246         .id             = 2,
 247         .num_resources  = ARRAY_SIZE(omap2_mcspi2_resources),
 248         .resource       = omap2_mcspi2_resources,
 249         .dev            = {
 250                 .platform_data = &omap2_mcspi2_config,
 251         },
 252 };
 253
 254 #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3)
 255 static struct omap2_mcspi_platform_config omap2_mcspi3_config = {
 256         .num_cs         = 2,
 257 };
 258
 259 static struct resource omap2_mcspi3_resources[] = {
 260         {
 261         .start          = OMAP2_MCSPI3_BASE,
 262         .end            = OMAP2_MCSPI3_BASE + 0xff,
 263         .flags          = IORESOURCE_MEM,
 264         },
 265 };
 266
 267 static struct platform_device omap2_mcspi3 = {
 268         .name           = "omap2_mcspi",
 269         .id             = 3,
 270         .num_resources  = ARRAY_SIZE(omap2_mcspi3_resources),
 271         .resource       = omap2_mcspi3_resources,
 272         .dev            = {
 273                 .platform_data = &omap2_mcspi3_config,
 274         },
 275 };
 276 #endif
 277
 278 #ifdef CONFIG_ARCH_OMAP3
 279 static struct omap2_mcspi_platform_config omap2_mcspi4_config = {
 280         .num_cs         = 1,
 281 };
 282
 283 static struct resource omap2_mcspi4_resources[] = {
 284         {
 285                 .start          = OMAP2_MCSPI4_BASE,
 286                 .end            = OMAP2_MCSPI4_BASE + 0xff,
 287                 .flags          = IORESOURCE_MEM,
 288         },
 289 };
 290
 291 static struct platform_device omap2_mcspi4 = {
 292         .name           = "omap2_mcspi",
 293         .id             = 4,
 294         .num_resources  = ARRAY_SIZE(omap2_mcspi4_resources),
 295         .resource       = omap2_mcspi4_resources,
 296         .dev            = {
 297                 .platform_data = &omap2_mcspi4_config,
 298         },
 299 };
 300 #endif
 301
 302 static void omap_init_mcspi(void)
 303 {
 304         platform_device_register(&omap2_mcspi1);
 305         platform_device_register(&omap2_mcspi2);
 306 #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3)
 307         if (cpu_is_omap2430() || cpu_is_omap343x())
 308                 platform_device_register(&omap2_mcspi3);
 309 #endif
 310 #ifdef CONFIG_ARCH_OMAP3
 311         if (cpu_is_omap343x())
 312                 platform_device_register(&omap2_mcspi4);
 313 #endif
 314 }
 315
 316 #else
 317 static inline void omap_init_mcspi(void) {}
 318 #endif
 319
 320 #ifdef CONFIG_SND_OMAP24XX_EAC
 321
 322 #define OMAP2_EAC_BASE                  (L4_24XX_BASE + 0x90000)
 323
 324 static struct resource omap2_eac_resources[] = {
 325         {
 326                 .start          = OMAP2_EAC_BASE,
 327                 .end            = OMAP2_EAC_BASE + 0xfff,
 328                 .flags          = IORESOURCE_MEM,
 329         },
 330 };
 331
 332 static struct platform_device omap2_eac_device = {
 333         .name           = "omap24xx-eac",
 334         .id             = -1,
 335         .num_resources  = ARRAY_SIZE(omap2_eac_resources),
 336         .resource       = omap2_eac_resources,
 337         .dev = {
 338                 .platform_data = NULL,
 339         },
 340 };
 341
 342 void omap_init_eac(struct eac_platform_data *pdata)
 343 {
 344         omap2_eac_device.dev.platform_data = pdata;
 345         platform_device_register(&omap2_eac_device);
 346 }
 347
 348 #else
 349 void omap_init_eac(struct eac_platform_data *pdata) {}
 350 #endif
 351
 352 #ifdef CONFIG_OMAP_SHA1_MD5
 353 static struct resource sha1_md5_resources[] = {
 354         {
 355                 .start  = OMAP24XX_SEC_SHA1MD5_BASE,
 356                 .end    = OMAP24XX_SEC_SHA1MD5_BASE + 0x64,
 357                 .flags  = IORESOURCE_MEM,
 358         },
 359         {
 360                 .start  = INT_24XX_SHA1MD5,
 361                 .flags  = IORESOURCE_IRQ,
 362         }
 363 };
 364
 365 static struct platform_device sha1_md5_device = {
 366         .name           = "OMAP SHA1/MD5",
 367         .id             = -1,
 368         .num_resources  = ARRAY_SIZE(sha1_md5_resources),
 369         .resource       = sha1_md5_resources,
 370 };
 371
 372 static void omap_init_sha1_md5(void)
 373 {
 374         platform_device_register(&sha1_md5_device);
 375 }
 376 #else
 377 static inline void omap_init_sha1_md5(void) { }
 378 #endif
 379
 380 /*-------------------------------------------------------------------------*/
 381
 382 #ifdef CONFIG_ARCH_OMAP3
 383
 384 #define MMCHS_SYSCONFIG                 0x0010
 385 #define MMCHS_SYSCONFIG_SWRESET         (1 << 1)
 386 #define MMCHS_SYSSTATUS                 0x0014
 387 #define MMCHS_SYSSTATUS_RESETDONE       (1 << 0)
 388
 389 static struct platform_device dummy_pdev = {
 390         .dev = {
 391                 .bus = &platform_bus_type,
 392         },
 393 };
 394
 395 /**
 396  * omap_hsmmc_reset() - Full reset of each HS-MMC controller
 397  *
 398  * Ensure that each MMC controller is fully reset.  Controllers
 399  * left in an unknown state (by bootloader) may prevent retention
 400  * or OFF-mode.  This is especially important in cases where the
 401  * MMC driver is not enabled, _or_ built as a module.
 402  *
 403  * In order for reset to work, interface, functional and debounce
 404  * clocks must be enabled.  The debounce clock comes from func_32k_clk
 405  * and is not under SW control, so we only enable i- and f-clocks.
 406  **/
 407 static void __init omap_hsmmc_reset(void)
 408 {
 409         u32 i, nr_controllers = cpu_is_omap34xx() ? OMAP34XX_NR_MMC :
 410                 OMAP24XX_NR_MMC;
 411
 412         for (i = 0; i < nr_controllers; i++) {
 413                 u32 v, base = 0;
 414                 struct clk *iclk, *fclk;
 415                 struct device *dev = &dummy_pdev.dev;
 416
 417                 switch (i) {
 418                 case 0:
 419                         base = OMAP2_MMC1_BASE;
 420                         break;
 421                 case 1:
 422                         base = OMAP2_MMC2_BASE;
 423                         break;
 424                 case 2:
 425                         base = OMAP3_MMC3_BASE;
 426                         break;
 427                 }
 428
 429                 dummy_pdev.id = i;
 430                 iclk = clk_get(dev, "mmchs_ick");
 431                 if (iclk && clk_enable(iclk))
 432                         iclk = NULL;
 433
 434                 fclk = clk_get(dev, "mmchs_fck");
 435                 if (fclk && clk_enable(fclk))
 436                         fclk = NULL;
 437
 438                 if (!iclk || !fclk) {
 439                         printk(KERN_WARNING
 440                                "%s: Unable to enable clocks for MMC%d, "
 441                                "cannot reset.\n",  __func__, i);
 442                         break;
 443                 }
 444
 445                 omap_writel(MMCHS_SYSCONFIG_SWRESET, base + MMCHS_SYSCONFIG);
 446                 v = omap_readl(base + MMCHS_SYSSTATUS);
 447                 while (!(omap_readl(base + MMCHS_SYSSTATUS) &
 448                          MMCHS_SYSSTATUS_RESETDONE))
 449                         cpu_relax();
 450
 451                 if (fclk) {
 452                         clk_disable(fclk);
 453                         clk_put(fclk);
 454                 }
 455                 if (iclk) {
 456                         clk_disable(iclk);
 457                         clk_put(iclk);
 458                 }
 459         }
 460 }
 461 #else
 462 static inline void omap_hsmmc_reset(void) {}
 463 #endif
 464
 465 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
 466         defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
 467
 468 static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
 469                         int controller_nr)
 470 {
 471         if (cpu_is_omap2420() && controller_nr == 0) {
 472                 omap_cfg_reg(H18_24XX_MMC_CMD);
 473                 omap_cfg_reg(H15_24XX_MMC_CLKI);
 474                 omap_cfg_reg(G19_24XX_MMC_CLKO);
 475                 omap_cfg_reg(F20_24XX_MMC_DAT0);
 476                 omap_cfg_reg(F19_24XX_MMC_DAT_DIR0);
 477                 omap_cfg_reg(G18_24XX_MMC_CMD_DIR);
 478                 if (mmc_controller->slots[0].wires == 4) {
 479                         omap_cfg_reg(H14_24XX_MMC_DAT1);
 480                         omap_cfg_reg(E19_24XX_MMC_DAT2);
 481                         omap_cfg_reg(D19_24XX_MMC_DAT3);
 482                         omap_cfg_reg(E20_24XX_MMC_DAT_DIR1);
 483                         omap_cfg_reg(F18_24XX_MMC_DAT_DIR2);
 484                         omap_cfg_reg(E18_24XX_MMC_DAT_DIR3);
 485                 }
 486
 487                 /*
 488                  * Use internal loop-back in MMC/SDIO Module Input Clock
 489                  * selection
 490                  */
 491                 if (mmc_controller->slots[0].internal_clock) {
 492                         u32 v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
 493                         v |= (1 << 24);
 494                         omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
 495                 }
 496         }
 497 }
 498
 499 void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
 500                         int nr_controllers)
 501 {
 502         int i;
 503
 504         for (i = 0; i < nr_controllers; i++) {
 505                 unsigned long base, size;
 506                 unsigned int irq = 0;
 507
 508                 if (!mmc_data[i])
 509                         continue;
 510
 511                 omap2_mmc_mux(mmc_data[i], i);
 512
 513                 switch (i) {
 514                 case 0:
 515                         base = OMAP2_MMC1_BASE;
 516                         irq = INT_24XX_MMC_IRQ;
 517                         break;
 518                 case 1:
 519                         base = OMAP2_MMC2_BASE;
 520                         irq = INT_24XX_MMC2_IRQ;
 521                         break;
 522                 case 2:
 523                         if (!cpu_is_omap34xx())
 524                                 return;
 525                         base = OMAP3_MMC3_BASE;
 526                         irq = INT_34XX_MMC3_IRQ;
 527                         break;
 528                 default:
 529                         continue;
 530                 }
 531
 532                 if (cpu_is_omap2420())
 533                         size = OMAP2420_MMC_SIZE;
 534                 else
 535                         size = HSMMC_SIZE;
 536
 537                 omap_mmc_add(i, base, size, irq, mmc_data[i]);
 538         };
 539 }
 540
 541 #endif
 542
 543 /*-------------------------------------------------------------------------*/
 544
 545 #if defined(CONFIG_HDQ_MASTER_OMAP) || defined(CONFIG_HDQ_MASTER_OMAP_MODULE)
 546 #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430)
 547 #define OMAP_HDQ_BASE   0x480B2000
 548 #endif
 549 static struct resource omap_hdq_resources[] = {
 550         {
 551                 .start          = OMAP_HDQ_BASE,
 552                 .end            = OMAP_HDQ_BASE + 0x1C,
 553                 .flags          = IORESOURCE_MEM,
 554         },
 555         {
 556                 .start          = INT_24XX_HDQ_IRQ,
 557                 .flags          = IORESOURCE_IRQ,
 558         },
 559 };
 560 static struct platform_device omap_hdq_dev = {
 561         .name = "omap_hdq",
 562         .id = 0,
 563         .dev = {
 564                 .platform_data = NULL,
 565         },
 566         .num_resources  = ARRAY_SIZE(omap_hdq_resources),
 567         .resource       = omap_hdq_resources,
 568 };
 569 static inline void omap_hdq_init(void)
 570 {
 571         (void) platform_device_register(&omap_hdq_dev);
 572 }
 573 #else
 574 static inline void omap_hdq_init(void) {}
 575 #endif
 576
 577 /*-------------------------------------------------------------------------*/
 578
 579 static int __init omap2_init_devices(void)
 580 {
 581         /* please keep these calls, and their implementations above,
 582          * in alphabetical order so they're easier to sort through.
 583          */
 584         omap_hsmmc_reset();
 585         omap_init_camera();
 586         omap_init_mbox();
 587         omap_init_mcspi();
 588         omap_hdq_init();
 589         omap_init_sti();
 590         omap_init_sha1_md5();
 591
 592         return 0;
 593 }
 594 arch_initcall(omap2_init_devices);