drivers/memory/tegra/tegra186.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2017 NVIDIA CORPORATION.  All rights reserved.
   4  */
   5
   6 #include <linux/io.h>
   7 #include <linux/module.h>
   8 #include <linux/mod_devicetable.h>
   9 #include <linux/platform_device.h>
  10
  11 #include <dt-bindings/memory/tegra186-mc.h>
  12
  13 struct tegra_mc {
  14         struct device *dev;
  15         void __iomem *regs;
  16 };
  17
  18 struct tegra_mc_client {
  19         const char *name;
  20         unsigned int sid;
  21         struct {
  22                 unsigned int override;
  23                 unsigned int security;
  24         } regs;
  25 };
  26
  27 static const struct tegra_mc_client tegra186_mc_clients[] = {
  28         {
  29                 .name = "ptcr",
  30                 .sid = TEGRA186_SID_PASSTHROUGH,
  31                 .regs = {
  32                         .override = 0x000,
  33                         .security = 0x004,
  34                 },
  35         }, {
  36                 .name = "afir",
  37                 .sid = TEGRA186_SID_AFI,
  38                 .regs = {
  39                         .override = 0x070,
  40                         .security = 0x074,
  41                 },
  42         }, {
  43                 .name = "hdar",
  44                 .sid = TEGRA186_SID_HDA,
  45                 .regs = {
  46                         .override = 0x0a8,
  47                         .security = 0x0ac,
  48                 },
  49         }, {
  50                 .name = "host1xdmar",
  51                 .sid = TEGRA186_SID_HOST1X,
  52                 .regs = {
  53                         .override = 0x0b0,
  54                         .security = 0x0b4,
  55                 },
  56         }, {
  57                 .name = "nvencsrd",
  58                 .sid = TEGRA186_SID_NVENC,
  59                 .regs = {
  60                         .override = 0x0e0,
  61                         .security = 0x0e4,
  62                 },
  63         }, {
  64                 .name = "satar",
  65                 .sid = TEGRA186_SID_SATA,
  66                 .regs = {
  67                         .override = 0x0f8,
  68                         .security = 0x0fc,
  69                 },
  70         }, {
  71                 .name = "mpcorer",
  72                 .sid = TEGRA186_SID_PASSTHROUGH,
  73                 .regs = {
  74                         .override = 0x138,
  75                         .security = 0x13c,
  76                 },
  77         }, {
  78                 .name = "nvencswr",
  79                 .sid = TEGRA186_SID_NVENC,
  80                 .regs = {
  81                         .override = 0x158,
  82                         .security = 0x15c,
  83                 },
  84         }, {
  85                 .name = "afiw",
  86                 .sid = TEGRA186_SID_AFI,
  87                 .regs = {
  88                         .override = 0x188,
  89                         .security = 0x18c,
  90                 },
  91         }, {
  92                 .name = "hdaw",
  93                 .sid = TEGRA186_SID_HDA,
  94                 .regs = {
  95                         .override = 0x1a8,
  96                         .security = 0x1ac,
  97                 },
  98         }, {
  99                 .name = "mpcorew",
 100                 .sid = TEGRA186_SID_PASSTHROUGH,
 101                 .regs = {
 102                         .override = 0x1c8,
 103                         .security = 0x1cc,
 104                 },
 105         }, {
 106                 .name = "sataw",
 107                 .sid = TEGRA186_SID_SATA,
 108                 .regs = {
 109                         .override = 0x1e8,
 110                         .security = 0x1ec,
 111                 },
 112         }, {
 113                 .name = "ispra",
 114                 .sid = TEGRA186_SID_ISP,
 115                 .regs = {
 116                         .override = 0x220,
 117                         .security = 0x224,
 118                 },
 119         }, {
 120                 .name = "ispwa",
 121                 .sid = TEGRA186_SID_ISP,
 122                 .regs = {
 123                         .override = 0x230,
 124                         .security = 0x234,
 125                 },
 126         }, {
 127                 .name = "ispwb",
 128                 .sid = TEGRA186_SID_ISP,
 129                 .regs = {
 130                         .override = 0x238,
 131                         .security = 0x23c,
 132                 },
 133         }, {
 134                 .name = "xusb_hostr",
 135                 .sid = TEGRA186_SID_XUSB_HOST,
 136                 .regs = {
 137                         .override = 0x250,
 138                         .security = 0x254,
 139                 },
 140         }, {
 141                 .name = "xusb_hostw",
 142                 .sid = TEGRA186_SID_XUSB_HOST,
 143                 .regs = {
 144                         .override = 0x258,
 145                         .security = 0x25c,
 146                 },
 147         }, {
 148                 .name = "xusb_devr",
 149                 .sid = TEGRA186_SID_XUSB_DEV,
 150                 .regs = {
 151                         .override = 0x260,
 152                         .security = 0x264,
 153                 },
 154         }, {
 155                 .name = "xusb_devw",
 156                 .sid = TEGRA186_SID_XUSB_DEV,
 157                 .regs = {
 158                         .override = 0x268,
 159                         .security = 0x26c,
 160                 },
 161         }, {
 162                 .name = "tsecsrd",
 163                 .sid = TEGRA186_SID_TSEC,
 164                 .regs = {
 165                         .override = 0x2a0,
 166                         .security = 0x2a4,
 167                 },
 168         }, {
 169                 .name = "tsecswr",
 170                 .sid = TEGRA186_SID_TSEC,
 171                 .regs = {
 172                         .override = 0x2a8,
 173                         .security = 0x2ac,
 174                 },
 175         }, {
 176                 .name = "gpusrd",
 177                 .sid = TEGRA186_SID_GPU,
 178                 .regs = {
 179                         .override = 0x2c0,
 180                         .security = 0x2c4,
 181                 },
 182         }, {
 183                 .name = "gpuswr",
 184                 .sid = TEGRA186_SID_GPU,
 185                 .regs = {
 186                         .override = 0x2c8,
 187                         .security = 0x2cc,
 188                 },
 189         }, {
 190                 .name = "sdmmcra",
 191                 .sid = TEGRA186_SID_SDMMC1,
 192                 .regs = {
 193                         .override = 0x300,
 194                         .security = 0x304,
 195                 },
 196         }, {
 197                 .name = "sdmmcraa",
 198                 .sid = TEGRA186_SID_SDMMC2,
 199                 .regs = {
 200                         .override = 0x308,
 201                         .security = 0x30c,
 202                 },
 203         }, {
 204                 .name = "sdmmcr",
 205                 .sid = TEGRA186_SID_SDMMC3,
 206                 .regs = {
 207                         .override = 0x310,
 208                         .security = 0x314,
 209                 },
 210         }, {
 211                 .name = "sdmmcrab",
 212                 .sid = TEGRA186_SID_SDMMC4,
 213                 .regs = {
 214                         .override = 0x318,
 215                         .security = 0x31c,
 216                 },
 217         }, {
 218                 .name = "sdmmcwa",
 219                 .sid = TEGRA186_SID_SDMMC1,
 220                 .regs = {
 221                         .override = 0x320,
 222                         .security = 0x324,
 223                 },
 224         }, {
 225                 .name = "sdmmcwaa",
 226                 .sid = TEGRA186_SID_SDMMC2,
 227                 .regs = {
 228                         .override = 0x328,
 229                         .security = 0x32c,
 230                 },
 231         }, {
 232                 .name = "sdmmcw",
 233                 .sid = TEGRA186_SID_SDMMC3,
 234                 .regs = {
 235                         .override = 0x330,
 236                         .security = 0x334,
 237                 },
 238         }, {
 239                 .name = "sdmmcwab",
 240                 .sid = TEGRA186_SID_SDMMC4,
 241                 .regs = {
 242                         .override = 0x338,
 243                         .security = 0x33c,
 244                 },
 245         }, {
 246                 .name = "vicsrd",
 247                 .sid = TEGRA186_SID_VIC,
 248                 .regs = {
 249                         .override = 0x360,
 250                         .security = 0x364,
 251                 },
 252         }, {
 253                 .name = "vicswr",
 254                 .sid = TEGRA186_SID_VIC,
 255                 .regs = {
 256                         .override = 0x368,
 257                         .security = 0x36c,
 258                 },
 259         }, {
 260                 .name = "viw",
 261                 .sid = TEGRA186_SID_VI,
 262                 .regs = {
 263                         .override = 0x390,
 264                         .security = 0x394,
 265                 },
 266         }, {
 267                 .name = "nvdecsrd",
 268                 .sid = TEGRA186_SID_NVDEC,
 269                 .regs = {
 270                         .override = 0x3c0,
 271                         .security = 0x3c4,
 272                 },
 273         }, {
 274                 .name = "nvdecswr",
 275                 .sid = TEGRA186_SID_NVDEC,
 276                 .regs = {
 277                         .override = 0x3c8,
 278                         .security = 0x3cc,
 279                 },
 280         }, {
 281                 .name = "aper",
 282                 .sid = TEGRA186_SID_APE,
 283                 .regs = {
 284                         .override = 0x3d0,
 285                         .security = 0x3d4,
 286                 },
 287         }, {
 288                 .name = "apew",
 289                 .sid = TEGRA186_SID_APE,
 290                 .regs = {
 291                         .override = 0x3d8,
 292                         .security = 0x3dc,
 293                 },
 294         }, {
 295                 .name = "nvjpgsrd",
 296                 .sid = TEGRA186_SID_NVJPG,
 297                 .regs = {
 298                         .override = 0x3f0,
 299                         .security = 0x3f4,
 300                 },
 301         }, {
 302                 .name = "nvjpgswr",
 303                 .sid = TEGRA186_SID_NVJPG,
 304                 .regs = {
 305                         .override = 0x3f8,
 306                         .security = 0x3fc,
 307                 },
 308         }, {
 309                 .name = "sesrd",
 310                 .sid = TEGRA186_SID_SE,
 311                 .regs = {
 312                         .override = 0x400,
 313                         .security = 0x404,
 314                 },
 315         }, {
 316                 .name = "seswr",
 317                 .sid = TEGRA186_SID_SE,
 318                 .regs = {
 319                         .override = 0x408,
 320                         .security = 0x40c,
 321                 },
 322         }, {
 323                 .name = "etrr",
 324                 .sid = TEGRA186_SID_ETR,
 325                 .regs = {
 326                         .override = 0x420,
 327                         .security = 0x424,
 328                 },
 329         }, {
 330                 .name = "etrw",
 331                 .sid = TEGRA186_SID_ETR,
 332                 .regs = {
 333                         .override = 0x428,
 334                         .security = 0x42c,
 335                 },
 336         }, {
 337                 .name = "tsecsrdb",
 338                 .sid = TEGRA186_SID_TSECB,
 339                 .regs = {
 340                         .override = 0x430,
 341                         .security = 0x434,
 342                 },
 343         }, {
 344                 .name = "tsecswrb",
 345                 .sid = TEGRA186_SID_TSECB,
 346                 .regs = {
 347                         .override = 0x438,
 348                         .security = 0x43c,
 349                 },
 350         }, {
 351                 .name = "gpusrd2",
 352                 .sid = TEGRA186_SID_GPU,
 353                 .regs = {
 354                         .override = 0x440,
 355                         .security = 0x444,
 356                 },
 357         }, {
 358                 .name = "gpuswr2",
 359                 .sid = TEGRA186_SID_GPU,
 360                 .regs = {
 361                         .override = 0x448,
 362                         .security = 0x44c,
 363                 },
 364         }, {
 365                 .name = "axisr",
 366                 .sid = TEGRA186_SID_GPCDMA_0,
 367                 .regs = {
 368                         .override = 0x460,
 369                         .security = 0x464,
 370                 },
 371         }, {
 372                 .name = "axisw",
 373                 .sid = TEGRA186_SID_GPCDMA_0,
 374                 .regs = {
 375                         .override = 0x468,
 376                         .security = 0x46c,
 377                 },
 378         }, {
 379                 .name = "eqosr",
 380                 .sid = TEGRA186_SID_EQOS,
 381                 .regs = {
 382                         .override = 0x470,
 383                         .security = 0x474,
 384                 },
 385         }, {
 386                 .name = "eqosw",
 387                 .sid = TEGRA186_SID_EQOS,
 388                 .regs = {
 389                         .override = 0x478,
 390                         .security = 0x47c,
 391                 },
 392         }, {
 393                 .name = "ufshcr",
 394                 .sid = TEGRA186_SID_UFSHC,
 395                 .regs = {
 396                         .override = 0x480,
 397                         .security = 0x484,
 398                 },
 399         }, {
 400                 .name = "ufshcw",
 401                 .sid = TEGRA186_SID_UFSHC,
 402                 .regs = {
 403                         .override = 0x488,
 404                         .security = 0x48c,
 405                 },
 406         }, {
 407                 .name = "nvdisplayr",
 408                 .sid = TEGRA186_SID_NVDISPLAY,
 409                 .regs = {
 410                         .override = 0x490,
 411                         .security = 0x494,
 412                 },
 413         }, {
 414                 .name = "bpmpr",
 415                 .sid = TEGRA186_SID_BPMP,
 416                 .regs = {
 417                         .override = 0x498,
 418                         .security = 0x49c,
 419                 },
 420         }, {
 421                 .name = "bpmpw",
 422                 .sid = TEGRA186_SID_BPMP,
 423                 .regs = {
 424                         .override = 0x4a0,
 425                         .security = 0x4a4,
 426                 },
 427         }, {
 428                 .name = "bpmpdmar",
 429                 .sid = TEGRA186_SID_BPMP,
 430                 .regs = {
 431                         .override = 0x4a8,
 432                         .security = 0x4ac,
 433                 },
 434         }, {
 435                 .name = "bpmpdmaw",
 436                 .sid = TEGRA186_SID_BPMP,
 437                 .regs = {
 438                         .override = 0x4b0,
 439                         .security = 0x4b4,
 440                 },
 441         }, {
 442                 .name = "aonr",
 443                 .sid = TEGRA186_SID_AON,
 444                 .regs = {
 445                         .override = 0x4b8,
 446                         .security = 0x4bc,
 447                 },
 448         }, {
 449                 .name = "aonw",
 450                 .sid = TEGRA186_SID_AON,
 451                 .regs = {
 452                         .override = 0x4c0,
 453                         .security = 0x4c4,
 454                 },
 455         }, {
 456                 .name = "aondmar",
 457                 .sid = TEGRA186_SID_AON,
 458                 .regs = {
 459                         .override = 0x4c8,
 460                         .security = 0x4cc,
 461                 },
 462         }, {
 463                 .name = "aondmaw",
 464                 .sid = TEGRA186_SID_AON,
 465                 .regs = {
 466                         .override = 0x4d0,
 467                         .security = 0x4d4,
 468                 },
 469         }, {
 470                 .name = "scer",
 471                 .sid = TEGRA186_SID_SCE,
 472                 .regs = {
 473                         .override = 0x4d8,
 474                         .security = 0x4dc,
 475                 },
 476         }, {
 477                 .name = "scew",
 478                 .sid = TEGRA186_SID_SCE,
 479                 .regs = {
 480                         .override = 0x4e0,
 481                         .security = 0x4e4,
 482                 },
 483         }, {
 484                 .name = "scedmar",
 485                 .sid = TEGRA186_SID_SCE,
 486                 .regs = {
 487                         .override = 0x4e8,
 488                         .security = 0x4ec,
 489                 },
 490         }, {
 491                 .name = "scedmaw",
 492                 .sid = TEGRA186_SID_SCE,
 493                 .regs = {
 494                         .override = 0x4f0,
 495                         .security = 0x4f4,
 496                 },
 497         }, {
 498                 .name = "apedmar",
 499                 .sid = TEGRA186_SID_APE,
 500                 .regs = {
 501                         .override = 0x4f8,
 502                         .security = 0x4fc,
 503                 },
 504         }, {
 505                 .name = "apedmaw",
 506                 .sid = TEGRA186_SID_APE,
 507                 .regs = {
 508                         .override = 0x500,
 509                         .security = 0x504,
 510                 },
 511         }, {
 512                 .name = "nvdisplayr1",
 513                 .sid = TEGRA186_SID_NVDISPLAY,
 514                 .regs = {
 515                         .override = 0x508,
 516                         .security = 0x50c,
 517                 },
 518         }, {
 519                 .name = "vicsrd1",
 520                 .sid = TEGRA186_SID_VIC,
 521                 .regs = {
 522                         .override = 0x510,
 523                         .security = 0x514,
 524                 },
 525         }, {
 526                 .name = "nvdecsrd1",
 527                 .sid = TEGRA186_SID_NVDEC,
 528                 .regs = {
 529                         .override = 0x518,
 530                         .security = 0x51c,
 531                 },
 532         },
 533 };
 534
 535 static int tegra186_mc_probe(struct platform_device *pdev)
 536 {
 537         struct resource *res;
 538         struct tegra_mc *mc;
 539         unsigned int i;
 540         int err = 0;
 541
 542         mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL);
 543         if (!mc)
 544                 return -ENOMEM;
 545
 546         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 547         mc->regs = devm_ioremap_resource(&pdev->dev, res);
 548         if (IS_ERR(mc->regs))
 549                 return PTR_ERR(mc->regs);
 550
 551         mc->dev = &pdev->dev;
 552
 553         for (i = 0; i < ARRAY_SIZE(tegra186_mc_clients); i++) {
 554                 const struct tegra_mc_client *client = &tegra186_mc_clients[i];
 555                 u32 override, security;
 556
 557                 override = readl(mc->regs + client->regs.override);
 558                 security = readl(mc->regs + client->regs.security);
 559
 560                 dev_dbg(&pdev->dev, "client %s: override: %x security: %x\n",
 561                         client->name, override, security);
 562
 563                 dev_dbg(&pdev->dev, "setting SID %u for %s\n", client->sid,
 564                         client->name);
 565                 writel(client->sid, mc->regs + client->regs.override);
 566
 567                 override = readl(mc->regs + client->regs.override);
 568                 security = readl(mc->regs + client->regs.security);
 569
 570                 dev_dbg(&pdev->dev, "client %s: override: %x security: %x\n",
 571                         client->name, override, security);
 572         }
 573
 574         platform_set_drvdata(pdev, mc);
 575
 576         return err;
 577 }
 578
 579 static const struct of_device_id tegra186_mc_of_match[] = {
 580         { .compatible = "nvidia,tegra186-mc", },
 581         { /* sentinel */ }
 582 };
 583 MODULE_DEVICE_TABLE(of, tegra186_mc_of_match);
 584
 585 static struct platform_driver tegra186_mc_driver = {
 586         .driver = {
 587                 .name = "tegra186-mc",
 588                 .of_match_table = tegra186_mc_of_match,
 589                 .suppress_bind_attrs = true,
 590         },
 591         .prevent_deferred_probe = true,
 592         .probe = tegra186_mc_probe,
 593 };
 594 module_platform_driver(tegra186_mc_driver);
 595
 596 MODULE_AUTHOR("Thierry Reding <[email protected]>");
 597 MODULE_DESCRIPTION("NVIDIA Tegra186 Memory Controller driver");
 598 MODULE_LICENSE("GPL v2");