cmd/mmc.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2003
   4  * Kyle Harris, kharris@nexus-tech.net
   5  */
   6
   7 #include <common.h>
   8 #include <blk.h>
   9 #include <command.h>
  10 #include <console.h>
  11 #include <memalign.h>
  12 #include <mmc.h>
  13 #include <part.h>
  14 #include <sparse_format.h>
  15 #include <image-sparse.h>
  16
  17 static int curr_device = -1;
  18
  19 static void print_mmcinfo(struct mmc *mmc)
  20 {
  21         int i;
  22
  23         printf("Device: %s\n", mmc->cfg->name);
  24         printf("Manufacturer ID: %x\n", mmc->cid[0] >> 24);
  25         printf("OEM: %x\n", (mmc->cid[0] >> 8) & 0xffff);
  26         printf("Name: %c%c%c%c%c \n", mmc->cid[0] & 0xff,
  27                         (mmc->cid[1] >> 24), (mmc->cid[1] >> 16) & 0xff,
  28                         (mmc->cid[1] >> 8) & 0xff, mmc->cid[1] & 0xff);
  29
  30         printf("Bus Speed: %d\n", mmc->clock);
  31 #if CONFIG_IS_ENABLED(MMC_VERBOSE)
  32         printf("Mode: %s\n", mmc_mode_name(mmc->selected_mode));
  33         mmc_dump_capabilities("card capabilities", mmc->card_caps);
  34         mmc_dump_capabilities("host capabilities", mmc->host_caps);
  35 #endif
  36         printf("Rd Block Len: %d\n", mmc->read_bl_len);
  37
  38         printf("%s version %d.%d", IS_SD(mmc) ? "SD" : "MMC",
  39                         EXTRACT_SDMMC_MAJOR_VERSION(mmc->version),
  40                         EXTRACT_SDMMC_MINOR_VERSION(mmc->version));
  41         if (EXTRACT_SDMMC_CHANGE_VERSION(mmc->version) != 0)
  42                 printf(".%d", EXTRACT_SDMMC_CHANGE_VERSION(mmc->version));
  43         printf("\n");
  44
  45         printf("High Capacity: %s\n", mmc->high_capacity ? "Yes" : "No");
  46         puts("Capacity: ");
  47         print_size(mmc->capacity, "\n");
  48
  49         printf("Bus Width: %d-bit%s\n", mmc->bus_width,
  50                         mmc->ddr_mode ? " DDR" : "");
  51
  52 #if CONFIG_IS_ENABLED(MMC_WRITE)
  53         puts("Erase Group Size: ");
  54         print_size(((u64)mmc->erase_grp_size) << 9, "\n");
  55 #endif
  56
  57         if (!IS_SD(mmc) && mmc->version >= MMC_VERSION_4_41) {
  58                 bool has_enh = (mmc->part_support & ENHNCD_SUPPORT) != 0;
  59                 bool usr_enh = has_enh && (mmc->part_attr & EXT_CSD_ENH_USR);
  60                 ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
  61                 u8 wp;
  62                 int ret;
  63
  64 #if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
  65                 puts("HC WP Group Size: ");
  66                 print_size(((u64)mmc->hc_wp_grp_size) << 9, "\n");
  67 #endif
  68
  69                 puts("User Capacity: ");
  70                 print_size(mmc->capacity_user, usr_enh ? " ENH" : "");
  71                 if (mmc->wr_rel_set & EXT_CSD_WR_DATA_REL_USR)
  72                         puts(" WRREL\n");
  73                 else
  74                         putc('\n');
  75                 if (usr_enh) {
  76                         puts("User Enhanced Start: ");
  77                         print_size(mmc->enh_user_start, "\n");
  78                         puts("User Enhanced Size: ");
  79                         print_size(mmc->enh_user_size, "\n");
  80                 }
  81                 puts("Boot Capacity: ");
  82                 print_size(mmc->capacity_boot, has_enh ? " ENH\n" : "\n");
  83                 puts("RPMB Capacity: ");
  84                 print_size(mmc->capacity_rpmb, has_enh ? " ENH\n" : "\n");
  85
  86                 for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
  87                         bool is_enh = has_enh &&
  88                                 (mmc->part_attr & EXT_CSD_ENH_GP(i));
  89                         if (mmc->capacity_gp[i]) {
  90                                 printf("GP%i Capacity: ", i+1);
  91                                 print_size(mmc->capacity_gp[i],
  92                                            is_enh ? " ENH" : "");
  93                                 if (mmc->wr_rel_set & EXT_CSD_WR_DATA_REL_GP(i))
  94                                         puts(" WRREL\n");
  95                                 else
  96                                         putc('\n');
  97                         }
  98                 }
  99                 ret = mmc_send_ext_csd(mmc, ext_csd);
 100                 if (ret)
 101                         return;
 102                 wp = ext_csd[EXT_CSD_BOOT_WP_STATUS];
 103                 for (i = 0; i < 2; ++i) {
 104                         printf("Boot area %d is ", i);
 105                         switch (wp & 3) {
 106                         case 0:
 107                                 printf("not write protected\n");
 108                                 break;
 109                         case 1:
 110                                 printf("power on protected\n");
 111                                 break;
 112                         case 2:
 113                                 printf("permanently protected\n");
 114                                 break;
 115                         default:
 116                                 printf("in reserved protection state\n");
 117                                 break;
 118                         }
 119                         wp >>= 2;
 120                 }
 121         }
 122 }
 123
 124 static struct mmc *__init_mmc_device(int dev, bool force_init,
 125                                      enum bus_mode speed_mode)
 126 {
 127         struct mmc *mmc;
 128         mmc = find_mmc_device(dev);
 129         if (!mmc) {
 130                 printf("no mmc device at slot %x\n", dev);
 131                 return NULL;
 132         }
 133
 134         if (!mmc_getcd(mmc))
 135                 force_init = true;
 136
 137         if (force_init)
 138                 mmc->has_init = 0;
 139
 140         if (IS_ENABLED(CONFIG_MMC_SPEED_MODE_SET))
 141                 mmc->user_speed_mode = speed_mode;
 142
 143         if (mmc_init(mmc))
 144                 return NULL;
 145
 146 #ifdef CONFIG_BLOCK_CACHE
 147         struct blk_desc *bd = mmc_get_blk_desc(mmc);
 148         blkcache_invalidate(bd->if_type, bd->devnum);
 149 #endif
 150
 151         return mmc;
 152 }
 153
 154 static struct mmc *init_mmc_device(int dev, bool force_init)
 155 {
 156         return __init_mmc_device(dev, force_init, MMC_MODES_END);
 157 }
 158
 159 static int do_mmcinfo(struct cmd_tbl *cmdtp, int flag, int argc,
 160                       char *const argv[])
 161 {
 162         struct mmc *mmc;
 163
 164         if (curr_device < 0) {
 165                 if (get_mmc_num() > 0)
 166                         curr_device = 0;
 167                 else {
 168                         puts("No MMC device available\n");
 169                         return 1;
 170                 }
 171         }
 172
 173         mmc = init_mmc_device(curr_device, false);
 174         if (!mmc)
 175                 return CMD_RET_FAILURE;
 176
 177         print_mmcinfo(mmc);
 178         return CMD_RET_SUCCESS;
 179 }
 180
 181 #if CONFIG_IS_ENABLED(CMD_MMC_RPMB)
 182 static int confirm_key_prog(void)
 183 {
 184         puts("Warning: Programming authentication key can be done only once !\n"
 185              "         Use this command only if you are sure of what you are doing,\n"
 186              "Really perform the key programming? <y/N> ");
 187         if (confirm_yesno())
 188                 return 1;
 189
 190         puts("Authentication key programming aborted\n");
 191         return 0;
 192 }
 193
 194 static int do_mmcrpmb_key(struct cmd_tbl *cmdtp, int flag,
 195                           int argc, char *const argv[])
 196 {
 197         void *key_addr;
 198         struct mmc *mmc = find_mmc_device(curr_device);
 199
 200         if (argc != 2)
 201                 return CMD_RET_USAGE;
 202
 203         key_addr = (void *)hextoul(argv[1], NULL);
 204         if (!confirm_key_prog())
 205                 return CMD_RET_FAILURE;
 206         if (mmc_rpmb_set_key(mmc, key_addr)) {
 207                 printf("ERROR - Key already programmed ?\n");
 208                 return CMD_RET_FAILURE;
 209         }
 210         return CMD_RET_SUCCESS;
 211 }
 212
 213 static int do_mmcrpmb_read(struct cmd_tbl *cmdtp, int flag,
 214                            int argc, char *const argv[])
 215 {
 216         u16 blk, cnt;
 217         void *addr;
 218         int n;
 219         void *key_addr = NULL;
 220         struct mmc *mmc = find_mmc_device(curr_device);
 221
 222         if (argc < 4)
 223                 return CMD_RET_USAGE;
 224
 225         addr = (void *)hextoul(argv[1], NULL);
 226         blk = hextoul(argv[2], NULL);
 227         cnt = hextoul(argv[3], NULL);
 228
 229         if (argc == 5)
 230                 key_addr = (void *)hextoul(argv[4], NULL);
 231
 232         printf("\nMMC RPMB read: dev # %d, block # %d, count %d ... ",
 233                curr_device, blk, cnt);
 234         n =  mmc_rpmb_read(mmc, addr, blk, cnt, key_addr);
 235
 236         printf("%d RPMB blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 237         if (n != cnt)
 238                 return CMD_RET_FAILURE;
 239         return CMD_RET_SUCCESS;
 240 }
 241
 242 static int do_mmcrpmb_write(struct cmd_tbl *cmdtp, int flag,
 243                             int argc, char *const argv[])
 244 {
 245         u16 blk, cnt;
 246         void *addr;
 247         int n;
 248         void *key_addr;
 249         struct mmc *mmc = find_mmc_device(curr_device);
 250
 251         if (argc != 5)
 252                 return CMD_RET_USAGE;
 253
 254         addr = (void *)hextoul(argv[1], NULL);
 255         blk = hextoul(argv[2], NULL);
 256         cnt = hextoul(argv[3], NULL);
 257         key_addr = (void *)hextoul(argv[4], NULL);
 258
 259         printf("\nMMC RPMB write: dev # %d, block # %d, count %d ... ",
 260                curr_device, blk, cnt);
 261         n =  mmc_rpmb_write(mmc, addr, blk, cnt, key_addr);
 262
 263         printf("%d RPMB blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 264         if (n != cnt)
 265                 return CMD_RET_FAILURE;
 266         return CMD_RET_SUCCESS;
 267 }
 268
 269 static int do_mmcrpmb_counter(struct cmd_tbl *cmdtp, int flag,
 270                               int argc, char *const argv[])
 271 {
 272         unsigned long counter;
 273         struct mmc *mmc = find_mmc_device(curr_device);
 274
 275         if (mmc_rpmb_get_counter(mmc, &counter))
 276                 return CMD_RET_FAILURE;
 277         printf("RPMB Write counter= %lx\n", counter);
 278         return CMD_RET_SUCCESS;
 279 }
 280
 281 static struct cmd_tbl cmd_rpmb[] = {
 282         U_BOOT_CMD_MKENT(key, 2, 0, do_mmcrpmb_key, "", ""),
 283         U_BOOT_CMD_MKENT(read, 5, 1, do_mmcrpmb_read, "", ""),
 284         U_BOOT_CMD_MKENT(write, 5, 0, do_mmcrpmb_write, "", ""),
 285         U_BOOT_CMD_MKENT(counter, 1, 1, do_mmcrpmb_counter, "", ""),
 286 };
 287
 288 static int do_mmcrpmb(struct cmd_tbl *cmdtp, int flag,
 289                       int argc, char *const argv[])
 290 {
 291         struct cmd_tbl *cp;
 292         struct mmc *mmc;
 293         char original_part;
 294         int ret;
 295
 296         cp = find_cmd_tbl(argv[1], cmd_rpmb, ARRAY_SIZE(cmd_rpmb));
 297
 298         /* Drop the rpmb subcommand */
 299         argc--;
 300         argv++;
 301
 302         if (cp == NULL || argc > cp->maxargs)
 303                 return CMD_RET_USAGE;
 304         if (flag == CMD_FLAG_REPEAT && !cmd_is_repeatable(cp))
 305                 return CMD_RET_SUCCESS;
 306
 307         mmc = init_mmc_device(curr_device, false);
 308         if (!mmc)
 309                 return CMD_RET_FAILURE;
 310
 311         if (!(mmc->version & MMC_VERSION_MMC)) {
 312                 printf("It is not an eMMC device\n");
 313                 return CMD_RET_FAILURE;
 314         }
 315         if (mmc->version < MMC_VERSION_4_41) {
 316                 printf("RPMB not supported before version 4.41\n");
 317                 return CMD_RET_FAILURE;
 318         }
 319         /* Switch to the RPMB partition */
 320 #ifndef CONFIG_BLK
 321         original_part = mmc->block_dev.hwpart;
 322 #else
 323         original_part = mmc_get_blk_desc(mmc)->hwpart;
 324 #endif
 325         if (blk_select_hwpart_devnum(IF_TYPE_MMC, curr_device, MMC_PART_RPMB) !=
 326             0)
 327                 return CMD_RET_FAILURE;
 328         ret = cp->cmd(cmdtp, flag, argc, argv);
 329
 330         /* Return to original partition */
 331         if (blk_select_hwpart_devnum(IF_TYPE_MMC, curr_device, original_part) !=
 332             0)
 333                 return CMD_RET_FAILURE;
 334         return ret;
 335 }
 336 #endif
 337
 338 static int do_mmc_read(struct cmd_tbl *cmdtp, int flag,
 339                        int argc, char *const argv[])
 340 {
 341         struct mmc *mmc;
 342         u32 blk, cnt, n;
 343         void *addr;
 344
 345         if (argc != 4)
 346                 return CMD_RET_USAGE;
 347
 348         addr = (void *)hextoul(argv[1], NULL);
 349         blk = hextoul(argv[2], NULL);
 350         cnt = hextoul(argv[3], NULL);
 351
 352         mmc = init_mmc_device(curr_device, false);
 353         if (!mmc)
 354                 return CMD_RET_FAILURE;
 355
 356         printf("\nMMC read: dev # %d, block # %d, count %d ... ",
 357                curr_device, blk, cnt);
 358
 359         n = blk_dread(mmc_get_blk_desc(mmc), blk, cnt, addr);
 360         printf("%d blocks read: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 361
 362         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 363 }
 364
 365 #if CONFIG_IS_ENABLED(CMD_MMC_SWRITE)
 366 static lbaint_t mmc_sparse_write(struct sparse_storage *info, lbaint_t blk,
 367                                  lbaint_t blkcnt, const void *buffer)
 368 {
 369         struct blk_desc *dev_desc = info->priv;
 370
 371         return blk_dwrite(dev_desc, blk, blkcnt, buffer);
 372 }
 373
 374 static lbaint_t mmc_sparse_reserve(struct sparse_storage *info,
 375                                    lbaint_t blk, lbaint_t blkcnt)
 376 {
 377         return blkcnt;
 378 }
 379
 380 static int do_mmc_sparse_write(struct cmd_tbl *cmdtp, int flag,
 381                                int argc, char *const argv[])
 382 {
 383         struct sparse_storage sparse;
 384         struct blk_desc *dev_desc;
 385         struct mmc *mmc;
 386         char dest[11];
 387         void *addr;
 388         u32 blk;
 389
 390         if (argc != 3)
 391                 return CMD_RET_USAGE;
 392
 393         addr = (void *)hextoul(argv[1], NULL);
 394         blk = hextoul(argv[2], NULL);
 395
 396         if (!is_sparse_image(addr)) {
 397                 printf("Not a sparse image\n");
 398                 return CMD_RET_FAILURE;
 399         }
 400
 401         mmc = init_mmc_device(curr_device, false);
 402         if (!mmc)
 403                 return CMD_RET_FAILURE;
 404
 405         printf("\nMMC Sparse write: dev # %d, block # %d ... ",
 406                curr_device, blk);
 407
 408         if (mmc_getwp(mmc) == 1) {
 409                 printf("Error: card is write protected!\n");
 410                 return CMD_RET_FAILURE;
 411         }
 412
 413         dev_desc = mmc_get_blk_desc(mmc);
 414         sparse.priv = dev_desc;
 415         sparse.blksz = 512;
 416         sparse.start = blk;
 417         sparse.size = dev_desc->lba - blk;
 418         sparse.write = mmc_sparse_write;
 419         sparse.reserve = mmc_sparse_reserve;
 420         sparse.mssg = NULL;
 421         sprintf(dest, "0x" LBAF, sparse.start * sparse.blksz);
 422
 423         if (write_sparse_image(&sparse, dest, addr, NULL))
 424                 return CMD_RET_FAILURE;
 425         else
 426                 return CMD_RET_SUCCESS;
 427 }
 428 #endif
 429
 430 #if CONFIG_IS_ENABLED(MMC_WRITE)
 431 static int do_mmc_write(struct cmd_tbl *cmdtp, int flag,
 432                         int argc, char *const argv[])
 433 {
 434         struct mmc *mmc;
 435         u32 blk, cnt, n;
 436         void *addr;
 437
 438         if (argc != 4)
 439                 return CMD_RET_USAGE;
 440
 441         addr = (void *)hextoul(argv[1], NULL);
 442         blk = hextoul(argv[2], NULL);
 443         cnt = hextoul(argv[3], NULL);
 444
 445         mmc = init_mmc_device(curr_device, false);
 446         if (!mmc)
 447                 return CMD_RET_FAILURE;
 448
 449         printf("\nMMC write: dev # %d, block # %d, count %d ... ",
 450                curr_device, blk, cnt);
 451
 452         if (mmc_getwp(mmc) == 1) {
 453                 printf("Error: card is write protected!\n");
 454                 return CMD_RET_FAILURE;
 455         }
 456         n = blk_dwrite(mmc_get_blk_desc(mmc), blk, cnt, addr);
 457         printf("%d blocks written: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 458
 459         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 460 }
 461
 462 static int do_mmc_erase(struct cmd_tbl *cmdtp, int flag,
 463                         int argc, char *const argv[])
 464 {
 465         struct mmc *mmc;
 466         u32 blk, cnt, n;
 467
 468         if (argc != 3)
 469                 return CMD_RET_USAGE;
 470
 471         blk = hextoul(argv[1], NULL);
 472         cnt = hextoul(argv[2], NULL);
 473
 474         mmc = init_mmc_device(curr_device, false);
 475         if (!mmc)
 476                 return CMD_RET_FAILURE;
 477
 478         printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
 479                curr_device, blk, cnt);
 480
 481         if (mmc_getwp(mmc) == 1) {
 482                 printf("Error: card is write protected!\n");
 483                 return CMD_RET_FAILURE;
 484         }
 485         n = blk_derase(mmc_get_blk_desc(mmc), blk, cnt);
 486         printf("%d blocks erased: %s\n", n, (n == cnt) ? "OK" : "ERROR");
 487
 488         return (n == cnt) ? CMD_RET_SUCCESS : CMD_RET_FAILURE;
 489 }
 490 #endif
 491
 492 static int do_mmc_rescan(struct cmd_tbl *cmdtp, int flag,
 493                          int argc, char *const argv[])
 494 {
 495         struct mmc *mmc;
 496         enum bus_mode speed_mode = MMC_MODES_END;
 497
 498         if (argc == 1) {
 499                 mmc = init_mmc_device(curr_device, true);
 500         } else if (argc == 2) {
 501                 speed_mode = (int)dectoul(argv[1], NULL);
 502                 mmc = __init_mmc_device(curr_device, true, speed_mode);
 503         } else {
 504                 return CMD_RET_USAGE;
 505         }
 506
 507         if (!mmc)
 508                 return CMD_RET_FAILURE;
 509
 510         return CMD_RET_SUCCESS;
 511 }
 512
 513 static int do_mmc_part(struct cmd_tbl *cmdtp, int flag,
 514                        int argc, char *const argv[])
 515 {
 516         struct blk_desc *mmc_dev;
 517         struct mmc *mmc;
 518
 519         mmc = init_mmc_device(curr_device, false);
 520         if (!mmc)
 521                 return CMD_RET_FAILURE;
 522
 523         mmc_dev = blk_get_devnum_by_type(IF_TYPE_MMC, curr_device);
 524         if (mmc_dev != NULL && mmc_dev->type != DEV_TYPE_UNKNOWN) {
 525                 part_print(mmc_dev);
 526                 return CMD_RET_SUCCESS;
 527         }
 528
 529         puts("get mmc type error!\n");
 530         return CMD_RET_FAILURE;
 531 }
 532
 533 static int do_mmc_dev(struct cmd_tbl *cmdtp, int flag,
 534                       int argc, char *const argv[])
 535 {
 536         int dev, part = 0, ret;
 537         struct mmc *mmc;
 538         enum bus_mode speed_mode = MMC_MODES_END;
 539
 540         if (argc == 1) {
 541                 dev = curr_device;
 542                 mmc = init_mmc_device(dev, true);
 543         } else if (argc == 2) {
 544                 dev = (int)dectoul(argv[1], NULL);
 545                 mmc = init_mmc_device(dev, true);
 546         } else if (argc == 3) {
 547                 dev = (int)dectoul(argv[1], NULL);
 548                 part = (int)dectoul(argv[2], NULL);
 549                 if (part > PART_ACCESS_MASK) {
 550                         printf("#part_num shouldn't be larger than %d\n",
 551                                PART_ACCESS_MASK);
 552                         return CMD_RET_FAILURE;
 553                 }
 554                 mmc = init_mmc_device(dev, true);
 555         } else if (argc == 4) {
 556                 dev = (int)dectoul(argv[1], NULL);
 557                 part = (int)dectoul(argv[2], NULL);
 558                 if (part > PART_ACCESS_MASK) {
 559                         printf("#part_num shouldn't be larger than %d\n",
 560                                PART_ACCESS_MASK);
 561                         return CMD_RET_FAILURE;
 562                 }
 563                 speed_mode = (int)dectoul(argv[3], NULL);
 564                 mmc = __init_mmc_device(dev, true, speed_mode);
 565         } else {
 566                 return CMD_RET_USAGE;
 567         }
 568
 569         if (!mmc)
 570                 return CMD_RET_FAILURE;
 571
 572         ret = blk_select_hwpart_devnum(IF_TYPE_MMC, dev, part);
 573         printf("switch to partitions #%d, %s\n",
 574                part, (!ret) ? "OK" : "ERROR");
 575         if (ret)
 576                 return 1;
 577
 578         curr_device = dev;
 579         if (mmc->part_config == MMCPART_NOAVAILABLE)
 580                 printf("mmc%d is current device\n", curr_device);
 581         else
 582                 printf("mmc%d(part %d) is current device\n",
 583                        curr_device, mmc_get_blk_desc(mmc)->hwpart);
 584
 585         return CMD_RET_SUCCESS;
 586 }
 587
 588 static int do_mmc_list(struct cmd_tbl *cmdtp, int flag,
 589                        int argc, char *const argv[])
 590 {
 591         print_mmc_devices('\n');
 592         return CMD_RET_SUCCESS;
 593 }
 594
 595 #if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
 596 static void parse_hwpart_user_enh_size(struct mmc *mmc,
 597                                        struct mmc_hwpart_conf *pconf,
 598                                        char *argv)
 599 {
 600         int i, ret;
 601
 602         pconf->user.enh_size = 0;
 603
 604         if (!strcmp(argv, "-")) { /* The rest of eMMC */
 605                 ALLOC_CACHE_ALIGN_BUFFER(u8, ext_csd, MMC_MAX_BLOCK_LEN);
 606                 ret = mmc_send_ext_csd(mmc, ext_csd);
 607                 if (ret)
 608                         return;
 609                 /* The enh_size value is in 512B block units */
 610                 pconf->user.enh_size =
 611                         ((ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT + 2] << 16) +
 612                         (ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT + 1] << 8) +
 613                         ext_csd[EXT_CSD_MAX_ENH_SIZE_MULT]) * 1024 *
 614                         ext_csd[EXT_CSD_HC_ERASE_GRP_SIZE] *
 615                         ext_csd[EXT_CSD_HC_WP_GRP_SIZE];
 616                 pconf->user.enh_size -= pconf->user.enh_start;
 617                 for (i = 0; i < ARRAY_SIZE(mmc->capacity_gp); i++) {
 618                         /*
 619                          * If the eMMC already has GP partitions set,
 620                          * subtract their size from the maximum USER
 621                          * partition size.
 622                          *
 623                          * Else, if the command was used to configure new
 624                          * GP partitions, subtract their size from maximum
 625                          * USER partition size.
 626                          */
 627                         if (mmc->capacity_gp[i]) {
 628                                 /* The capacity_gp is in 1B units */
 629                                 pconf->user.enh_size -= mmc->capacity_gp[i] >> 9;
 630                         } else if (pconf->gp_part[i].size) {
 631                                 /* The gp_part[].size is in 512B units */
 632                                 pconf->user.enh_size -= pconf->gp_part[i].size;
 633                         }
 634                 }
 635         } else {
 636                 pconf->user.enh_size = dectoul(argv, NULL);
 637         }
 638 }
 639
 640 static int parse_hwpart_user(struct mmc *mmc, struct mmc_hwpart_conf *pconf,
 641                              int argc, char *const argv[])
 642 {
 643         int i = 0;
 644
 645         memset(&pconf->user, 0, sizeof(pconf->user));
 646
 647         while (i < argc) {
 648                 if (!strcmp(argv[i], "enh")) {
 649                         if (i + 2 >= argc)
 650                                 return -1;
 651                         pconf->user.enh_start =
 652                                 dectoul(argv[i + 1], NULL);
 653                         parse_hwpart_user_enh_size(mmc, pconf, argv[i + 2]);
 654                         i += 3;
 655                 } else if (!strcmp(argv[i], "wrrel")) {
 656                         if (i + 1 >= argc)
 657                                 return -1;
 658                         pconf->user.wr_rel_change = 1;
 659                         if (!strcmp(argv[i+1], "on"))
 660                                 pconf->user.wr_rel_set = 1;
 661                         else if (!strcmp(argv[i+1], "off"))
 662                                 pconf->user.wr_rel_set = 0;
 663                         else
 664                                 return -1;
 665                         i += 2;
 666                 } else {
 667                         break;
 668                 }
 669         }
 670         return i;
 671 }
 672
 673 static int parse_hwpart_gp(struct mmc_hwpart_conf *pconf, int pidx,
 674                            int argc, char *const argv[])
 675 {
 676         int i;
 677
 678         memset(&pconf->gp_part[pidx], 0, sizeof(pconf->gp_part[pidx]));
 679
 680         if (1 >= argc)
 681                 return -1;
 682         pconf->gp_part[pidx].size = dectoul(argv[0], NULL);
 683
 684         i = 1;
 685         while (i < argc) {
 686                 if (!strcmp(argv[i], "enh")) {
 687                         pconf->gp_part[pidx].enhanced = 1;
 688                         i += 1;
 689                 } else if (!strcmp(argv[i], "wrrel")) {
 690                         if (i + 1 >= argc)
 691                                 return -1;
 692                         pconf->gp_part[pidx].wr_rel_change = 1;
 693                         if (!strcmp(argv[i+1], "on"))
 694                                 pconf->gp_part[pidx].wr_rel_set = 1;
 695                         else if (!strcmp(argv[i+1], "off"))
 696                                 pconf->gp_part[pidx].wr_rel_set = 0;
 697                         else
 698                                 return -1;
 699                         i += 2;
 700                 } else {
 701                         break;
 702                 }
 703         }
 704         return i;
 705 }
 706
 707 static int do_mmc_hwpartition(struct cmd_tbl *cmdtp, int flag,
 708                               int argc, char *const argv[])
 709 {
 710         struct mmc *mmc;
 711         struct mmc_hwpart_conf pconf = { };
 712         enum mmc_hwpart_conf_mode mode = MMC_HWPART_CONF_CHECK;
 713         int i, r, pidx;
 714
 715         mmc = init_mmc_device(curr_device, false);
 716         if (!mmc)
 717                 return CMD_RET_FAILURE;
 718
 719         if (IS_SD(mmc)) {
 720                 puts("SD doesn't support partitioning\n");
 721                 return CMD_RET_FAILURE;
 722         }
 723
 724         if (argc < 1)
 725                 return CMD_RET_USAGE;
 726         i = 1;
 727         while (i < argc) {
 728                 if (!strcmp(argv[i], "user")) {
 729                         i++;
 730                         r = parse_hwpart_user(mmc, &pconf, argc - i, &argv[i]);
 731                         if (r < 0)
 732                                 return CMD_RET_USAGE;
 733                         i += r;
 734                 } else if (!strncmp(argv[i], "gp", 2) &&
 735                            strlen(argv[i]) == 3 &&
 736                            argv[i][2] >= '1' && argv[i][2] <= '4') {
 737                         pidx = argv[i][2] - '1';
 738                         i++;
 739                         r = parse_hwpart_gp(&pconf, pidx, argc-i, &argv[i]);
 740                         if (r < 0)
 741                                 return CMD_RET_USAGE;
 742                         i += r;
 743                 } else if (!strcmp(argv[i], "check")) {
 744                         mode = MMC_HWPART_CONF_CHECK;
 745                         i++;
 746                 } else if (!strcmp(argv[i], "set")) {
 747                         mode = MMC_HWPART_CONF_SET;
 748                         i++;
 749                 } else if (!strcmp(argv[i], "complete")) {
 750                         mode = MMC_HWPART_CONF_COMPLETE;
 751                         i++;
 752                 } else {
 753                         return CMD_RET_USAGE;
 754                 }
 755         }
 756
 757         puts("Partition configuration:\n");
 758         if (pconf.user.enh_size) {
 759                 puts("\tUser Enhanced Start: ");
 760                 print_size(((u64)pconf.user.enh_start) << 9, "\n");
 761                 puts("\tUser Enhanced Size: ");
 762                 print_size(((u64)pconf.user.enh_size) << 9, "\n");
 763         } else {
 764                 puts("\tNo enhanced user data area\n");
 765         }
 766         if (pconf.user.wr_rel_change)
 767                 printf("\tUser partition write reliability: %s\n",
 768                        pconf.user.wr_rel_set ? "on" : "off");
 769         for (pidx = 0; pidx < 4; pidx++) {
 770                 if (pconf.gp_part[pidx].size) {
 771                         printf("\tGP%i Capacity: ", pidx+1);
 772                         print_size(((u64)pconf.gp_part[pidx].size) << 9,
 773                                    pconf.gp_part[pidx].enhanced ?
 774                                    " ENH\n" : "\n");
 775                 } else {
 776                         printf("\tNo GP%i partition\n", pidx+1);
 777                 }
 778                 if (pconf.gp_part[pidx].wr_rel_change)
 779                         printf("\tGP%i write reliability: %s\n", pidx+1,
 780                                pconf.gp_part[pidx].wr_rel_set ? "on" : "off");
 781         }
 782
 783         if (!mmc_hwpart_config(mmc, &pconf, mode)) {
 784                 if (mode == MMC_HWPART_CONF_COMPLETE)
 785                         puts("Partitioning successful, "
 786                              "power-cycle to make effective\n");
 787                 return CMD_RET_SUCCESS;
 788         } else {
 789                 puts("Failed!\n");
 790                 return CMD_RET_FAILURE;
 791         }
 792 }
 793 #endif
 794
 795 #ifdef CONFIG_SUPPORT_EMMC_BOOT
 796 static int do_mmc_bootbus(struct cmd_tbl *cmdtp, int flag,
 797                           int argc, char *const argv[])
 798 {
 799         int dev;
 800         struct mmc *mmc;
 801         u8 width, reset, mode;
 802
 803         if (argc != 5)
 804                 return CMD_RET_USAGE;
 805         dev = dectoul(argv[1], NULL);
 806         width = dectoul(argv[2], NULL);
 807         reset = dectoul(argv[3], NULL);
 808         mode = dectoul(argv[4], NULL);
 809
 810         mmc = init_mmc_device(dev, false);
 811         if (!mmc)
 812                 return CMD_RET_FAILURE;
 813
 814         if (IS_SD(mmc)) {
 815                 puts("BOOT_BUS_WIDTH only exists on eMMC\n");
 816                 return CMD_RET_FAILURE;
 817         }
 818
 819         /*
 820          * BOOT_BUS_CONDITIONS[177]
 821          * BOOT_MODE[4:3]
 822          * 0x0 : Use SDR + Backward compatible timing in boot operation
 823          * 0x1 : Use SDR + High Speed Timing in boot operation mode
 824          * 0x2 : Use DDR in boot operation
 825          * RESET_BOOT_BUS_CONDITIONS
 826          * 0x0 : Reset bus width to x1, SDR, Backward compatible
 827          * 0x1 : Retain BOOT_BUS_WIDTH and BOOT_MODE
 828          * BOOT_BUS_WIDTH
 829          * 0x0 : x1(sdr) or x4 (ddr) buswidth
 830          * 0x1 : x4(sdr/ddr) buswith
 831          * 0x2 : x8(sdr/ddr) buswith
 832          *
 833          */
 834         if (width >= 0x3) {
 835                 printf("boot_bus_width %d is invalid\n", width);
 836                 return CMD_RET_FAILURE;
 837         }
 838
 839         if (reset >= 0x2) {
 840                 printf("reset_boot_bus_width %d is invalid\n", reset);
 841                 return CMD_RET_FAILURE;
 842         }
 843
 844         if (mode >= 0x3) {
 845                 printf("reset_boot_bus_width %d is invalid\n", mode);
 846                 return CMD_RET_FAILURE;
 847         }
 848
 849         /* acknowledge to be sent during boot operation */
 850         if (mmc_set_boot_bus_width(mmc, width, reset, mode)) {
 851                 puts("BOOT_BUS_WIDTH is failed to change.\n");
 852                 return CMD_RET_FAILURE;
 853         }
 854
 855         printf("Set to BOOT_BUS_WIDTH = 0x%x, RESET = 0x%x, BOOT_MODE = 0x%x\n",
 856                         width, reset, mode);
 857         return CMD_RET_SUCCESS;
 858 }
 859
 860 static int do_mmc_boot_resize(struct cmd_tbl *cmdtp, int flag,
 861                               int argc, char *const argv[])
 862 {
 863         int dev;
 864         struct mmc *mmc;
 865         u32 bootsize, rpmbsize;
 866
 867         if (argc != 4)
 868                 return CMD_RET_USAGE;
 869         dev = dectoul(argv[1], NULL);
 870         bootsize = dectoul(argv[2], NULL);
 871         rpmbsize = dectoul(argv[3], NULL);
 872
 873         mmc = init_mmc_device(dev, false);
 874         if (!mmc)
 875                 return CMD_RET_FAILURE;
 876
 877         if (IS_SD(mmc)) {
 878                 printf("It is not an eMMC device\n");
 879                 return CMD_RET_FAILURE;
 880         }
 881
 882         if (mmc_boot_partition_size_change(mmc, bootsize, rpmbsize)) {
 883                 printf("EMMC boot partition Size change Failed.\n");
 884                 return CMD_RET_FAILURE;
 885         }
 886
 887         printf("EMMC boot partition Size %d MB\n", bootsize);
 888         printf("EMMC RPMB partition Size %d MB\n", rpmbsize);
 889         return CMD_RET_SUCCESS;
 890 }
 891
 892 static int mmc_partconf_print(struct mmc *mmc, const char *varname)
 893 {
 894         u8 ack, access, part;
 895
 896         if (mmc->part_config == MMCPART_NOAVAILABLE) {
 897                 printf("No part_config info for ver. 0x%x\n", mmc->version);
 898                 return CMD_RET_FAILURE;
 899         }
 900
 901         access = EXT_CSD_EXTRACT_PARTITION_ACCESS(mmc->part_config);
 902         ack = EXT_CSD_EXTRACT_BOOT_ACK(mmc->part_config);
 903         part = EXT_CSD_EXTRACT_BOOT_PART(mmc->part_config);
 904
 905         if(varname)
 906                 env_set_hex(varname, part);
 907
 908         printf("EXT_CSD[179], PARTITION_CONFIG:\n"
 909                 "BOOT_ACK: 0x%x\n"
 910                 "BOOT_PARTITION_ENABLE: 0x%x\n"
 911                 "PARTITION_ACCESS: 0x%x\n", ack, part, access);
 912
 913         return CMD_RET_SUCCESS;
 914 }
 915
 916 static int do_mmc_partconf(struct cmd_tbl *cmdtp, int flag,
 917                            int argc, char *const argv[])
 918 {
 919         int dev;
 920         struct mmc *mmc;
 921         u8 ack, part_num, access;
 922
 923         if (argc != 2 && argc != 3 && argc != 5)
 924                 return CMD_RET_USAGE;
 925
 926         dev = dectoul(argv[1], NULL);
 927
 928         mmc = init_mmc_device(dev, false);
 929         if (!mmc)
 930                 return CMD_RET_FAILURE;
 931
 932         if (IS_SD(mmc)) {
 933                 puts("PARTITION_CONFIG only exists on eMMC\n");
 934                 return CMD_RET_FAILURE;
 935         }
 936
 937         if (argc == 2 || argc == 3)
 938                 return mmc_partconf_print(mmc, argc == 3 ? argv[2] : NULL);
 939
 940         ack = dectoul(argv[2], NULL);
 941         part_num = dectoul(argv[3], NULL);
 942         access = dectoul(argv[4], NULL);
 943
 944         /* acknowledge to be sent during boot operation */
 945         return mmc_set_part_conf(mmc, ack, part_num, access);
 946 }
 947
 948 static int do_mmc_rst_func(struct cmd_tbl *cmdtp, int flag,
 949                            int argc, char *const argv[])
 950 {
 951         int dev;
 952         struct mmc *mmc;
 953         u8 enable;
 954
 955         /*
 956          * Set the RST_n_ENABLE bit of RST_n_FUNCTION
 957          * The only valid values are 0x0, 0x1 and 0x2 and writing
 958          * a value of 0x1 or 0x2 sets the value permanently.
 959          */
 960         if (argc != 3)
 961                 return CMD_RET_USAGE;
 962
 963         dev = dectoul(argv[1], NULL);
 964         enable = dectoul(argv[2], NULL);
 965
 966         if (enable > 2) {
 967                 puts("Invalid RST_n_ENABLE value\n");
 968                 return CMD_RET_USAGE;
 969         }
 970
 971         mmc = init_mmc_device(dev, false);
 972         if (!mmc)
 973                 return CMD_RET_FAILURE;
 974
 975         if (IS_SD(mmc)) {
 976                 puts("RST_n_FUNCTION only exists on eMMC\n");
 977                 return CMD_RET_FAILURE;
 978         }
 979
 980         return mmc_set_rst_n_function(mmc, enable);
 981 }
 982 #endif
 983 static int do_mmc_setdsr(struct cmd_tbl *cmdtp, int flag,
 984                          int argc, char *const argv[])
 985 {
 986         struct mmc *mmc;
 987         u32 val;
 988         int ret;
 989
 990         if (argc != 2)
 991                 return CMD_RET_USAGE;
 992         val = hextoul(argv[1], NULL);
 993
 994         mmc = find_mmc_device(curr_device);
 995         if (!mmc) {
 996                 printf("no mmc device at slot %x\n", curr_device);
 997                 return CMD_RET_FAILURE;
 998         }
 999         ret = mmc_set_dsr(mmc, val);
1000         printf("set dsr %s\n", (!ret) ? "OK, force rescan" : "ERROR");
1001         if (!ret) {
1002                 mmc->has_init = 0;
1003                 if (mmc_init(mmc))
1004                         return CMD_RET_FAILURE;
1005                 else
1006                         return CMD_RET_SUCCESS;
1007         }
1008         return ret;
1009 }
1010
1011 #ifdef CONFIG_CMD_BKOPS_ENABLE
1012 static int do_mmc_bkops_enable(struct cmd_tbl *cmdtp, int flag,
1013                                int argc, char *const argv[])
1014 {
1015         int dev;
1016         struct mmc *mmc;
1017
1018         if (argc != 2)
1019                 return CMD_RET_USAGE;
1020
1021         dev = dectoul(argv[1], NULL);
1022
1023         mmc = init_mmc_device(dev, false);
1024         if (!mmc)
1025                 return CMD_RET_FAILURE;
1026
1027         if (IS_SD(mmc)) {
1028                 puts("BKOPS_EN only exists on eMMC\n");
1029                 return CMD_RET_FAILURE;
1030         }
1031
1032         return mmc_set_bkops_enable(mmc);
1033 }
1034 #endif
1035
1036 static int do_mmc_boot_wp(struct cmd_tbl *cmdtp, int flag,
1037                           int argc, char * const argv[])
1038 {
1039         int err;
1040         struct mmc *mmc;
1041
1042         mmc = init_mmc_device(curr_device, false);
1043         if (!mmc)
1044                 return CMD_RET_FAILURE;
1045         if (IS_SD(mmc)) {
1046                 printf("It is not an eMMC device\n");
1047                 return CMD_RET_FAILURE;
1048         }
1049         err = mmc_boot_wp(mmc);
1050         if (err)
1051                 return CMD_RET_FAILURE;
1052         printf("boot areas protected\n");
1053         return CMD_RET_SUCCESS;
1054 }
1055
1056 static struct cmd_tbl cmd_mmc[] = {
1057         U_BOOT_CMD_MKENT(info, 1, 0, do_mmcinfo, "", ""),
1058         U_BOOT_CMD_MKENT(read, 4, 1, do_mmc_read, "", ""),
1059         U_BOOT_CMD_MKENT(wp, 1, 0, do_mmc_boot_wp, "", ""),
1060 #if CONFIG_IS_ENABLED(MMC_WRITE)
1061         U_BOOT_CMD_MKENT(write, 4, 0, do_mmc_write, "", ""),
1062         U_BOOT_CMD_MKENT(erase, 3, 0, do_mmc_erase, "", ""),
1063 #endif
1064 #if CONFIG_IS_ENABLED(CMD_MMC_SWRITE)
1065         U_BOOT_CMD_MKENT(swrite, 3, 0, do_mmc_sparse_write, "", ""),
1066 #endif
1067         U_BOOT_CMD_MKENT(rescan, 2, 1, do_mmc_rescan, "", ""),
1068         U_BOOT_CMD_MKENT(part, 1, 1, do_mmc_part, "", ""),
1069         U_BOOT_CMD_MKENT(dev, 4, 0, do_mmc_dev, "", ""),
1070         U_BOOT_CMD_MKENT(list, 1, 1, do_mmc_list, "", ""),
1071 #if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
1072         U_BOOT_CMD_MKENT(hwpartition, 28, 0, do_mmc_hwpartition, "", ""),
1073 #endif
1074 #ifdef CONFIG_SUPPORT_EMMC_BOOT
1075         U_BOOT_CMD_MKENT(bootbus, 5, 0, do_mmc_bootbus, "", ""),
1076         U_BOOT_CMD_MKENT(bootpart-resize, 4, 0, do_mmc_boot_resize, "", ""),
1077         U_BOOT_CMD_MKENT(partconf, 5, 0, do_mmc_partconf, "", ""),
1078         U_BOOT_CMD_MKENT(rst-function, 3, 0, do_mmc_rst_func, "", ""),
1079 #endif
1080 #if CONFIG_IS_ENABLED(CMD_MMC_RPMB)
1081         U_BOOT_CMD_MKENT(rpmb, CONFIG_SYS_MAXARGS, 1, do_mmcrpmb, "", ""),
1082 #endif
1083         U_BOOT_CMD_MKENT(setdsr, 2, 0, do_mmc_setdsr, "", ""),
1084 #ifdef CONFIG_CMD_BKOPS_ENABLE
1085         U_BOOT_CMD_MKENT(bkops-enable, 2, 0, do_mmc_bkops_enable, "", ""),
1086 #endif
1087 };
1088
1089 static int do_mmcops(struct cmd_tbl *cmdtp, int flag, int argc,
1090                      char *const argv[])
1091 {
1092         struct cmd_tbl *cp;
1093
1094         cp = find_cmd_tbl(argv[1], cmd_mmc, ARRAY_SIZE(cmd_mmc));
1095
1096         /* Drop the mmc command */
1097         argc--;
1098         argv++;
1099
1100         if (cp == NULL || argc > cp->maxargs)
1101                 return CMD_RET_USAGE;
1102         if (flag == CMD_FLAG_REPEAT && !cmd_is_repeatable(cp))
1103                 return CMD_RET_SUCCESS;
1104
1105         if (curr_device < 0) {
1106                 if (get_mmc_num() > 0) {
1107                         curr_device = 0;
1108                 } else {
1109                         puts("No MMC device available\n");
1110                         return CMD_RET_FAILURE;
1111                 }
1112         }
1113         return cp->cmd(cmdtp, flag, argc, argv);
1114 }
1115
1116 U_BOOT_CMD(
1117         mmc, 29, 1, do_mmcops,
1118         "MMC sub system",
1119         "info - display info of the current MMC device\n"
1120         "mmc read addr blk# cnt\n"
1121         "mmc write addr blk# cnt\n"
1122 #if CONFIG_IS_ENABLED(CMD_MMC_SWRITE)
1123         "mmc swrite addr blk#\n"
1124 #endif
1125         "mmc erase blk# cnt\n"
1126         "mmc rescan [mode]\n"
1127         "mmc part - lists available partition on current mmc device\n"
1128         "mmc dev [dev] [part] [mode] - show or set current mmc device [partition] and set mode\n"
1129         "  - the required speed mode is passed as the index from the following list\n"
1130         "    [MMC_LEGACY, MMC_HS, SD_HS, MMC_HS_52, MMC_DDR_52, UHS_SDR12, UHS_SDR25,\n"
1131         "    UHS_SDR50, UHS_DDR50, UHS_SDR104, MMC_HS_200, MMC_HS_400, MMC_HS_400_ES]\n"
1132         "mmc list - lists available devices\n"
1133         "mmc wp - power on write protect boot partitions\n"
1134 #if CONFIG_IS_ENABLED(MMC_HW_PARTITIONING)
1135         "mmc hwpartition <USER> <GP> <MODE> - does hardware partitioning\n"
1136         "  arguments (sizes in 512-byte blocks):\n"
1137         "   USER - <user> <enh> <start> <cnt> <wrrel> <{on|off}>\n"
1138         "       : sets user data area attributes\n"
1139         "   GP - <{gp1|gp2|gp3|gp4}> <cnt> <enh> <wrrel> <{on|off}>\n"
1140         "       : general purpose partition\n"
1141         "   MODE - <{check|set|complete}>\n"
1142         "       : mode, complete set partitioning completed\n"
1143         "  WARNING: Partitioning is a write-once setting once it is set to complete.\n"
1144         "  Power cycling is required to initialize partitions after set to complete.\n"
1145 #endif
1146 #ifdef CONFIG_SUPPORT_EMMC_BOOT
1147         "mmc bootbus <dev> <boot_bus_width> <reset_boot_bus_width> <boot_mode>\n"
1148         " - Set the BOOT_BUS_WIDTH field of the specified device\n"
1149         "mmc bootpart-resize <dev> <boot part size MB> <RPMB part size MB>\n"
1150         " - Change sizes of boot and RPMB partitions of specified device\n"
1151         "mmc partconf <dev> [[varname] | [<boot_ack> <boot_partition> <partition_access>]]\n"
1152         " - Show or change the bits of the PARTITION_CONFIG field of the specified device\n"
1153         "   If showing the bits, optionally store the boot_partition field into varname\n"
1154         "mmc rst-function <dev> <value>\n"
1155         " - Change the RST_n_FUNCTION field of the specified device\n"
1156         "   WARNING: This is a write-once field and 0 / 1 / 2 are the only valid values.\n"
1157 #endif
1158 #if CONFIG_IS_ENABLED(CMD_MMC_RPMB)
1159         "mmc rpmb read addr blk# cnt [address of auth-key] - block size is 256 bytes\n"
1160         "mmc rpmb write addr blk# cnt <address of auth-key> - block size is 256 bytes\n"
1161         "mmc rpmb key <address of auth-key> - program the RPMB authentication key.\n"
1162         "mmc rpmb counter - read the value of the write counter\n"
1163 #endif
1164         "mmc setdsr <value> - set DSR register value\n"
1165 #ifdef CONFIG_CMD_BKOPS_ENABLE
1166         "mmc bkops-enable <dev> - enable background operations handshake on device\n"
1167         "   WARNING: This is a write-once setting.\n"
1168 #endif
1169         );
1170
1171 /* Old command kept for compatibility. Same as 'mmc info' */
1172 U_BOOT_CMD(
1173         mmcinfo, 1, 0, do_mmcinfo,
1174         "display MMC info",
1175         "- display info of the current MMC device"
1176 );