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