common/cmd_mmc.c

   1 /*
   2  * (C) Copyright 2003
   3  * Kyle Harris, kharris@nexus-tech.net
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <common.h>
   9 #include <command.h>
  10 #include <mmc.h>
  11
  12 static int curr_device = -1;
  13 #ifndef CONFIG_GENERIC_MMC
  14 int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  15 {
  16         int dev;
  17
  18         if (argc < 2)
  19                 return CMD_RET_USAGE;
  20
  21         if (strcmp(argv[1], "init") == 0) {
  22                 if (argc == 2) {
  23                         if (curr_device < 0)
  24                                 dev = 1;
  25                         else
  26                                 dev = curr_device;
  27                 } else if (argc == 3) {
  28                         dev = (int)simple_strtoul(argv[2], NULL, 10);
  29                 } else {
  30                         return CMD_RET_USAGE;
  31                 }
  32
  33                 if (mmc_legacy_init(dev) != 0) {
  34                         puts("No MMC card found\n");
  35                         return 1;
  36                 }
  37
  38                 curr_device = dev;
  39                 printf("mmc%d is available\n", curr_device);
  40         } else if (strcmp(argv[1], "device") == 0) {
  41                 if (argc == 2) {
  42                         if (curr_device < 0) {
  43                                 puts("No MMC device available\n");
  44                                 return 1;
  45                         }
  46                 } else if (argc == 3) {
  47                         dev = (int)simple_strtoul(argv[2], NULL, 10);
  48
  49 #ifdef CONFIG_SYS_MMC_SET_DEV
  50                         if (mmc_set_dev(dev) != 0)
  51                                 return 1;
  52 #endif
  53                         curr_device = dev;
  54                 } else {
  55                         return CMD_RET_USAGE;
  56                 }
  57
  58                 printf("mmc%d is current device\n", curr_device);
  59         } else {
  60                 return CMD_RET_USAGE;
  61         }
  62
  63         return 0;
  64 }
  65
  66 U_BOOT_CMD(
  67         mmc, 3, 1, do_mmc,
  68         "MMC sub-system",
  69         "init [dev] - init MMC sub system\n"
  70         "mmc device [dev] - show or set current device"
  71 );
  72 #else /* !CONFIG_GENERIC_MMC */
  73
  74 static void print_mmcinfo(struct mmc *mmc)
  75 {
  76         printf("Device: %s\n", mmc->cfg->name);
  77         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
  78         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
  79         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
  80                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
  81                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
  82
  83         printf("Tran Speed: %d\n", mmc->tran_speed);
  84         printf("Rd Block Len: %d\n", mmc->read_bl_len);
  85
  86         printf("%s version %d.%d\n", IS_SD(mmc) ? "SD" : "MMC",
  87                         (mmc->version >> 8) & 0xf, mmc->version & 0xff);
  88
  89         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
  90         puts("Capacity: ");
  91         print_size(mmc->capacity, "\n");
  92
  93         printf("Bus Width: %d-bit\n", mmc->bus_width);
  94 }
  95 static struct mmc *init_mmc_device(int dev, bool force_init)
  96 {
  97         struct mmc *mmc;
  98         mmc = find_mmc_device(dev);
  99         if (!mmc) {
 100                 printf("no mmc device at slot %x\n", dev);
 101                 return NULL;
 102         }
 103         if (force_init)
 104                 mmc->has_init = 0;
 105         if (mmc_init(mmc))
 106                 return NULL;
 107         return mmc;
 108 }
 109 static int do_mmcinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 110 {
 111         struct mmc *mmc;
 112
 113         if (curr_device < 0) {
 114                 if (get_mmc_num() > 0)
 115                         curr_device = 0;
 116                 else {
 117                         puts("No MMC device available\n");
 118                         return 1;
 119                 }
 120         }
 121
 122         mmc = init_mmc_device(curr_device, false);
 123         if (!mmc)
 124                 return CMD_RET_FAILURE;
 125
 126         print_mmcinfo(mmc);
 127         return CMD_RET_SUCCESS;
 128 }
 129
 130 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 131 static int confirm_key_prog(void)
 132 {
 133         puts("Warning: Programming authentication key can be done only once !\n"
 134              "         Use this command only if you are sure of what you are doing,\n"
 135              "Really perform the key programming? <y/N> ");
 136         if (confirm_yesno())
 137                 return 1;
 138
 139         puts("Authentication key programming aborted\n");
 140         return 0;
 141 }
 142 static int do_mmcrpmb_key(cmd_tbl_t *cmdtp, int flag,
 143                           int argc, char * const argv[])
 144 {
 145         void *key_addr;
 146         struct mmc *mmc = find_mmc_device(curr_device);
 147
 148         if (argc != 2)
 149                 return CMD_RET_USAGE;
 150
 151         key_addr = (void *)simple_strtoul(argv[1], NULL, 16);
 152         if (!confirm_key_prog())
 153                 return CMD_RET_FAILURE;
 154         if (mmc_rpmb_set_key(mmc, key_addr)) {
 155                 printf("ERROR - Key already programmed ?\n");
 156                 return CMD_RET_FAILURE;
 157         }
 158         return CMD_RET_SUCCESS;
 159 }
 160 static int do_mmcrpmb_read(cmd_tbl_t *cmdtp, int flag,
 161                            int argc, char * const argv[])
 162 {
 163         u16 blk, cnt;
 164         void *addr;
 165         int n;
 166         void *key_addr = NULL;
 167         struct mmc *mmc = find_mmc_device(curr_device);
 168
 169         if (argc < 4)
 170                 return CMD_RET_USAGE;
 171
 172         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 173         blk = simple_strtoul(argv[2], NULL, 16);
 174         cnt = simple_strtoul(argv[3], NULL, 16);
 175
 176         if (argc == 5)
 177                 key_addr = (void *)simple_strtoul(argv[4], NULL, 16);
 178
 179         printf("\nMMC RPMB read: dev # %d, block # %d, count %d ... ",
 180                curr_device, blk, cnt);
 181         n =  mmc_rpmb_read(mmc, addr, blk, cnt, key_addr);
 182
 183         printf("%d RPMB blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 184         if (n != cnt)
 185                 return CMD_RET_FAILURE;
 186         return CMD_RET_SUCCESS;
 187 }
 188 static int do_mmcrpmb_write(cmd_tbl_t *cmdtp, int flag,
 189                             int argc, char * const argv[])
 190 {
 191         u16 blk, cnt;
 192         void *addr;
 193         int n;
 194         void *key_addr;
 195         struct mmc *mmc = find_mmc_device(curr_device);
 196
 197         if (argc != 5)
 198                 return CMD_RET_USAGE;
 199
 200         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 201         blk = simple_strtoul(argv[2], NULL, 16);
 202         cnt = simple_strtoul(argv[3], NULL, 16);
 203         key_addr = (void *)simple_strtoul(argv[4], NULL, 16);
 204
 205         printf("\nMMC RPMB write: dev # %d, block # %d, count %d ... ",
 206                curr_device, blk, cnt);
 207         n =  mmc_rpmb_write(mmc, addr, blk, cnt, key_addr);
 208
 209         printf("%d RPMB blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 210         if (n != cnt)
 211                 return CMD_RET_FAILURE;
 212         return CMD_RET_SUCCESS;
 213 }
 214 static int do_mmcrpmb_counter(cmd_tbl_t *cmdtp, int flag,
 215                               int argc, char * const argv[])
 216 {
 217         unsigned long counter;
 218         struct mmc *mmc = find_mmc_device(curr_device);
 219
 220         if (mmc_rpmb_get_counter(mmc, &counter))
 221                 return CMD_RET_FAILURE;
 222         printf("RPMB Write counter= %lx\n", counter);
 223         return CMD_RET_SUCCESS;
 224 }
 225
 226 static cmd_tbl_t cmd_rpmb[] = {
 227         U_BOOT_CMD_MKENT(key, 2, 0, do_mmcrpmb_key, "", ""),
 228         U_BOOT_CMD_MKENT(read, 5, 1, do_mmcrpmb_read, "", ""),
 229         U_BOOT_CMD_MKENT(write, 5, 0, do_mmcrpmb_write, "", ""),
 230         U_BOOT_CMD_MKENT(counter, 1, 1, do_mmcrpmb_counter, "", ""),
 231 };
 232
 233 static int do_mmcrpmb(cmd_tbl_t *cmdtp, int flag,
 234                       int argc, char * const argv[])
 235 {
 236         cmd_tbl_t *cp;
 237         struct mmc *mmc;
 238         char original_part;
 239         int ret;
 240
 241         cp = find_cmd_tbl(argv[1], cmd_rpmb, ARRAY_SIZE(cmd_rpmb));
 242
 243         /* Drop the rpmb subcommand */
 244         argc--;
 245         argv++;
 246
 247         if (cp == NULL || argc > cp->maxargs)
 248                 return CMD_RET_USAGE;
 249         if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
 250                 return CMD_RET_SUCCESS;
 251
 252         mmc = init_mmc_device(curr_device, false);
 253         if (!mmc)
 254                 return CMD_RET_FAILURE;
 255
 256         if (!(mmc->version & MMC_VERSION_MMC)) {
 257                 printf("It is not a EMMC device\n");
 258                 return CMD_RET_FAILURE;
 259         }
 260         if (mmc->version < MMC_VERSION_4_41) {
 261                 printf("RPMB not supported before version 4.41\n");
 262                 return CMD_RET_FAILURE;
 263         }
 264         /* Switch to the RPMB partition */
 265         original_part = mmc->part_num;
 266         if (mmc->part_num != MMC_PART_RPMB) {
 267                 if (mmc_switch_part(curr_device, MMC_PART_RPMB) != 0)
 268                         return CMD_RET_FAILURE;
 269                 mmc->part_num = MMC_PART_RPMB;
 270         }
 271         ret = cp->cmd(cmdtp, flag, argc, argv);
 272
 273         /* Return to original partition */
 274         if (mmc->part_num != original_part) {
 275                 if (mmc_switch_part(curr_device, original_part) != 0)
 276                         return CMD_RET_FAILURE;
 277                 mmc->part_num = original_part;
 278         }
 279         return ret;
 280 }
 281 #endif
 282
 283 static int do_mmc_read(cmd_tbl_t *cmdtp, int flag,
 284                        int argc, char * const argv[])
 285 {
 286         struct mmc *mmc;
 287         u32 blk, cnt, n;
 288         void *addr;
 289
 290         if (argc != 4)
 291                 return CMD_RET_USAGE;
 292
 293         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 294         blk = simple_strtoul(argv[2], NULL, 16);
 295         cnt = simple_strtoul(argv[3], NULL, 16);
 296
 297         mmc = init_mmc_device(curr_device, false);
 298         if (!mmc)
 299                 return CMD_RET_FAILURE;
 300
 301         printf("\nMMC read: dev # %d, block # %d, count %d ... ",
 302                curr_device, blk, cnt);
 303
 304         n = mmc->block_dev.block_read(curr_device, blk, cnt, addr);
 305         /* flush cache after read */
 306         flush_cache((ulong)addr, cnt * 512); /* FIXME */
 307         printf("%d blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 308
 309         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 310 }
 311 static int do_mmc_write(cmd_tbl_t *cmdtp, int flag,
 312                         int argc, char * const argv[])
 313 {
 314         struct mmc *mmc;
 315         u32 blk, cnt, n;
 316         void *addr;
 317
 318         if (argc != 4)
 319                 return CMD_RET_USAGE;
 320
 321         addr = (void *)simple_strtoul(argv[1], NULL, 16);
 322         blk = simple_strtoul(argv[2], NULL, 16);
 323         cnt = simple_strtoul(argv[3], NULL, 16);
 324
 325         mmc = init_mmc_device(curr_device, false);
 326         if (!mmc)
 327                 return CMD_RET_FAILURE;
 328
 329         printf("\nMMC write: dev # %d, block # %d, count %d ... ",
 330                curr_device, blk, cnt);
 331
 332         if (mmc_getwp(mmc) == 1) {
 333                 printf("Error: card is write protected!\n");
 334                 return CMD_RET_FAILURE;
 335         }
 336         n = mmc->block_dev.block_write(curr_device, blk, cnt, addr);
 337         printf("%d blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 338
 339         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 340 }
 341 static int do_mmc_erase(cmd_tbl_t *cmdtp, int flag,
 342                         int argc, char * const argv[])
 343 {
 344         struct mmc *mmc;
 345         u32 blk, cnt, n;
 346
 347         if (argc != 3)
 348                 return CMD_RET_USAGE;
 349
 350         blk = simple_strtoul(argv[1], NULL, 16);
 351         cnt = simple_strtoul(argv[2], NULL, 16);
 352
 353         mmc = init_mmc_device(curr_device, false);
 354         if (!mmc)
 355                 return CMD_RET_FAILURE;
 356
 357         printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
 358                curr_device, blk, cnt);
 359
 360         if (mmc_getwp(mmc) == 1) {
 361                 printf("Error: card is write protected!\n");
 362                 return CMD_RET_FAILURE;
 363         }
 364         n = mmc->block_dev.block_erase(curr_device, blk, cnt);
 365         printf("%d blocks erased: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 366
 367         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 368 }
 369 static int do_mmc_rescan(cmd_tbl_t *cmdtp, int flag,
 370                          int argc, char * const argv[])
 371 {
 372         struct mmc *mmc;
 373
 374         mmc = init_mmc_device(curr_device, true);
 375         if (!mmc)
 376                 return CMD_RET_FAILURE;
 377
 378         return CMD_RET_SUCCESS;
 379 }
 380 static int do_mmc_part(cmd_tbl_t *cmdtp, int flag,
 381                        int argc, char * const argv[])
 382 {
 383         block_dev_desc_t *mmc_dev;
 384         struct mmc *mmc;
 385
 386         mmc = init_mmc_device(curr_device, false);
 387         if (!mmc)
 388                 return CMD_RET_FAILURE;
 389
 390         mmc_dev = mmc_get_dev(curr_device);
 391         if (mmc_dev != NULL && mmc_dev->type != DEV_TYPE_UNKNOWN) {
 392                 print_part(mmc_dev);
 393                 return CMD_RET_SUCCESS;
 394         }
 395
 396         puts("get mmc type error!\n");
 397         return CMD_RET_FAILURE;
 398 }
 399 static int do_mmc_dev(cmd_tbl_t *cmdtp, int flag,
 400                       int argc, char * const argv[])
 401 {
 402         int dev, part = 0, ret;
 403         struct mmc *mmc;
 404
 405         if (argc == 1) {
 406                 dev = curr_device;
 407         } else if (argc == 2) {
 408                 dev = simple_strtoul(argv[1], NULL, 10);
 409         } else if (argc == 3) {
 410                 dev = (int)simple_strtoul(argv[1], NULL, 10);
 411                 part = (int)simple_strtoul(argv[2], NULL, 10);
 412                 if (part > PART_ACCESS_MASK) {
 413                         printf("#part_num shouldn't be larger than %d\n",
 414                                PART_ACCESS_MASK);
 415                         return CMD_RET_FAILURE;
 416                 }
 417         } else {
 418                 return CMD_RET_USAGE;
 419         }
 420
 421         mmc = init_mmc_device(dev, true);
 422         if (!mmc)
 423                 return CMD_RET_FAILURE;
 424
 425         ret = mmc_select_hwpart(dev, part);
 426         printf("switch to partitions #%d, %s\n",
 427                part, (!ret) ? "OK" : "ERROR");
 428         if (ret)
 429                 return 1;
 430
 431         curr_device = dev;
 432         if (mmc->part_config == MMCPART_NOAVAILABLE)
 433                 printf("mmc%d is current device\n", curr_device);
 434         else
 435                 printf("mmc%d(part %d) is current device\n",
 436                        curr_device, mmc->part_num);
 437
 438         return CMD_RET_SUCCESS;
 439 }
 440 static int do_mmc_list(cmd_tbl_t *cmdtp, int flag,
 441                        int argc, char * const argv[])
 442 {
 443         print_mmc_devices('\n');
 444         return CMD_RET_SUCCESS;
 445 }
 446 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 447 static int do_mmc_bootbus(cmd_tbl_t *cmdtp, int flag,
 448                           int argc, char * const argv[])
 449 {
 450         int dev;
 451         struct mmc *mmc;
 452         u8 width, reset, mode;
 453
 454         if (argc != 5)
 455                 return CMD_RET_USAGE;
 456         dev = simple_strtoul(argv[1], NULL, 10);
 457         width = simple_strtoul(argv[2], NULL, 10);
 458         reset = simple_strtoul(argv[3], NULL, 10);
 459         mode = simple_strtoul(argv[4], NULL, 10);
 460
 461         mmc = init_mmc_device(dev, false);
 462         if (!mmc)
 463                 return CMD_RET_FAILURE;
 464
 465         if (IS_SD(mmc)) {
 466                 puts("BOOT_BUS_WIDTH only exists on eMMC\n");
 467                 return CMD_RET_FAILURE;
 468         }
 469
 470         /* acknowledge to be sent during boot operation */
 471         return mmc_set_boot_bus_width(mmc, width, reset, mode);
 472 }
 473 static int do_mmc_boot_resize(cmd_tbl_t *cmdtp, int flag,
 474                               int argc, char * const argv[])
 475 {
 476         int dev;
 477         struct mmc *mmc;
 478         u32 bootsize, rpmbsize;
 479
 480         if (argc != 4)
 481                 return CMD_RET_USAGE;
 482         dev = simple_strtoul(argv[1], NULL, 10);
 483         bootsize = simple_strtoul(argv[2], NULL, 10);
 484         rpmbsize = simple_strtoul(argv[3], NULL, 10);
 485
 486         mmc = init_mmc_device(dev, false);
 487         if (!mmc)
 488                 return CMD_RET_FAILURE;
 489
 490         if (IS_SD(mmc)) {
 491                 printf("It is not a EMMC device\n");
 492                 return CMD_RET_FAILURE;
 493         }
 494
 495         if (mmc_boot_partition_size_change(mmc, bootsize, rpmbsize)) {
 496                 printf("EMMC boot partition Size change Failed.\n");
 497                 return CMD_RET_FAILURE;
 498         }
 499
 500         printf("EMMC boot partition Size %d MB\n", bootsize);
 501         printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
 502         return CMD_RET_SUCCESS;
 503 }
 504 static int do_mmc_partconf(cmd_tbl_t *cmdtp, int flag,
 505                            int argc, char * const argv[])
 506 {
 507         int dev;
 508         struct mmc *mmc;
 509         u8 ack, part_num, access;
 510
 511         if (argc != 5)
 512                 return CMD_RET_USAGE;
 513
 514         dev = simple_strtoul(argv[1], NULL, 10);
 515         ack = simple_strtoul(argv[2], NULL, 10);
 516         part_num = simple_strtoul(argv[3], NULL, 10);
 517         access = simple_strtoul(argv[4], NULL, 10);
 518
 519         mmc = init_mmc_device(dev, false);
 520         if (!mmc)
 521                 return CMD_RET_FAILURE;
 522
 523         if (IS_SD(mmc)) {
 524                 puts("PARTITION_CONFIG only exists on eMMC\n");
 525                 return CMD_RET_FAILURE;
 526         }
 527
 528         /* acknowledge to be sent during boot operation */
 529         return mmc_set_part_conf(mmc, ack, part_num, access);
 530 }
 531 static int do_mmc_rst_func(cmd_tbl_t *cmdtp, int flag,
 532                            int argc, char * const argv[])
 533 {
 534         int dev;
 535         struct mmc *mmc;
 536         u8 enable;
 537
 538         /*
 539          * Set the RST_n_ENABLE bit of RST_n_FUNCTION
 540          * The only valid values are 0x0, 0x1 and 0x2 and writing
 541          * a value of 0x1 or 0x2 sets the value permanently.
 542          */
 543         if (argc != 3)
 544                 return CMD_RET_USAGE;
 545
 546         dev = simple_strtoul(argv[1], NULL, 10);
 547         enable = simple_strtoul(argv[2], NULL, 10);
 548
 549         if (enable > 2 || enable < 0) {
 550                 puts("Invalid RST_n_ENABLE value\n");
 551                 return CMD_RET_USAGE;
 552         }
 553
 554         mmc = init_mmc_device(dev, false);
 555         if (!mmc)
 556                 return CMD_RET_FAILURE;
 557
 558         if (IS_SD(mmc)) {
 559                 puts("RST_n_FUNCTION only exists on eMMC\n");
 560                 return CMD_RET_FAILURE;
 561         }
 562
 563         return mmc_set_rst_n_function(mmc, enable);
 564 }
 565 #endif
 566 static int do_mmc_setdsr(cmd_tbl_t *cmdtp, int flag,
 567                          int argc, char * const argv[])
 568 {
 569         struct mmc *mmc;
 570         u32 val;
 571         int ret;
 572
 573         if (argc != 2)
 574                 return CMD_RET_USAGE;
 575         val = simple_strtoul(argv[2], NULL, 16);
 576
 577         mmc = find_mmc_device(curr_device);
 578         if (!mmc) {
 579                 printf("no mmc device at slot %x\n", curr_device);
 580                 return CMD_RET_FAILURE;
 581         }
 582         ret = mmc_set_dsr(mmc, val);
 583         printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
 584         if (!ret) {
 585                 mmc->has_init = 0;
 586                 if (mmc_init(mmc))
 587                         return CMD_RET_FAILURE;
 588                 else
 589                         return CMD_RET_SUCCESS;
 590         }
 591         return ret;
 592 }
 593
 594 static cmd_tbl_t cmd_mmc[] = {
 595         U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
 596         U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
 597         U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""),
 598         U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""),
 599         U_BOOT_CMD_MKENT(rescan, 1, 1, do_mmc_rescan, "", ""),
 600         U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
 601         U_BOOT_CMD_MKENT(dev, 3, 0, do_mmc_dev, "", ""),
 602         U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
 603 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 604         U_BOOT_CMD_MKENT(bootbus, 5, 0, do_mmc_bootbus, "", ""),
 605         U_BOOT_CMD_MKENT(bootpart-resize, 3, 0, do_mmc_boot_resize, "", ""),
 606         U_BOOT_CMD_MKENT(partconf, 5, 0, do_mmc_partconf, "", ""),
 607         U_BOOT_CMD_MKENT(rst-function, 3, 0, do_mmc_rst_func, "", ""),
 608 #endif
 609 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 610         U_BOOT_CMD_MKENT(rpmb, CONFIG_SYS_MAXARGS, 1, do_mmcrpmb, "", ""),
 611 #endif
 612         U_BOOT_CMD_MKENT(setdsr, 2, 0, do_mmc_setdsr, "", ""),
 613 };
 614
 615 static int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 616 {
 617         cmd_tbl_t *cp;
 618
 619         cp = find_cmd_tbl(argv[1], cmd_mmc, ARRAY_SIZE(cmd_mmc));
 620
 621         /* Drop the mmc command */
 622         argc--;
 623         argv++;
 624
 625         if (cp == NULL || argc > cp->maxargs)
 626                 return CMD_RET_USAGE;
 627         if (flag == CMD_FLAG_REPEAT && !cp->repeatable)
 628                 return CMD_RET_SUCCESS;
 629
 630         if (curr_device < 0) {
 631                 if (get_mmc_num() > 0) {
 632                         curr_device = 0;
 633                 } else {
 634                         puts("No MMC device available\n");
 635                         return CMD_RET_FAILURE;
 636                 }
 637         }
 638         return cp->cmd(cmdtp, flag, argc, argv);
 639 }
 640
 641 U_BOOT_CMD(
 642         mmc, 7, 1, do_mmcops,
 643         "MMC sub system",
 644         "info - display info of the current MMC device\n"
 645         "mmc read addr blk# cnt\n"
 646         "mmc write addr blk# cnt\n"
 647         "mmc erase blk# cnt\n"
 648         "mmc rescan\n"
 649         "mmc part - lists available partition on current mmc device\n"
 650         "mmc dev [dev] [part] - show or set current mmc device [partition]\n"
 651         "mmc list - lists available devices\n"
 652 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 653         "mmc bootbus dev boot_bus_width reset_boot_bus_width boot_mode\n"
 654         " - Set the BOOT_BUS_WIDTH field of the specified device\n"
 655         "mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
 656         " - Change sizes of boot and RPMB partitions of specified device\n"
 657         "mmc partconf dev boot_ack boot_partition partition_access\n"
 658         " - Change the bits of the PARTITION_CONFIG field of the specified device\n"
 659         "mmc rst-function dev value\n"
 660         " - Change the RST_n_FUNCTION field of the specified device\n"
 661         "   WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
 662 #endif
 663 #ifdef CONFIG_SUPPORT_EMMC_RPMB
 664         "mmc rpmb read addr blk# cnt [address of auth-key] - block size is 256 bytes\n"
 665         "mmc rpmb write addr blk# cnt <address of auth-key> - block size is 256 bytes\n"
 666         "mmc rpmb key <address of auth-key> - program the RPMB authentication key.\n"
 667         "mmc rpmb counter - read the value of the write counter\n"
 668 #endif
 669         "mmc setdsr <value> - set DSR register value\n"
 670         );
 671
 672 /* Old command kept for compatibility. Same as 'mmc info' */
 673 U_BOOT_CMD(
 674         mmcinfo, 1, 0, do_mmcinfo,
 675         "display MMC info",
 676         "- display info of the current MMC device"
 677 );
 678
 679 #endif /* !CONFIG_GENERIC_MMC */