cmd/flash.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2000
   4  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   5  */
   6
   7 /*
   8  * FLASH support
   9  */
  10 #include <command.h>
  11 #include <log.h>
  12 #include <vsprintf.h>
  13 #include <u-boot/uuid.h>
  14
  15 #if defined(CONFIG_CMD_MTDPARTS)
  16 #include <jffs2/jffs2.h>
  17
  18 /* partition handling routines */
  19 int mtdparts_init(void);
  20 int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
  21 int find_dev_and_part(const char *id, struct mtd_device **dev,
  22                       u8 *part_num, struct part_info **part);
  23 #endif
  24
  25 #ifdef CONFIG_MTD_NOR_FLASH
  26 #include <flash.h>
  27 #include <mtd/cfi_flash.h>
  28
  29 /*
  30  * The user interface starts numbering for Flash banks with 1
  31  * for historical reasons.
  32  */
  33
  34 /*
  35  * this routine looks for an abbreviated flash range specification.
  36  * the syntax is B:SF[-SL], where B is the bank number, SF is the first
  37  * sector to erase, and SL is the last sector to erase (defaults to SF).
  38  * bank numbers start at 1 to be consistent with other specs, sector numbers
  39  * start at zero.
  40  *
  41  * returns:     1       - correct spec; *pinfo, *psf and *psl are
  42  *                        set appropriately
  43  *              0       - doesn't look like an abbreviated spec
  44  *              -1      - looks like an abbreviated spec, but got
  45  *                        a parsing error, a number out of range,
  46  *                        or an invalid flash bank.
  47  */
  48 static int
  49 abbrev_spec(char *str, flash_info_t **pinfo, int *psf, int *psl)
  50 {
  51         flash_info_t *fp;
  52         int bank, first, last;
  53         char *p, *ep;
  54
  55         p = strchr(str, ':');
  56         if (!p)
  57                 return 0;
  58         *p++ = '\0';
  59
  60         bank = dectoul(str, &ep);
  61         if (ep == str || *ep != '\0' ||
  62             bank < 1 || bank > CFI_FLASH_BANKS)
  63                 return -1;
  64
  65         fp = &flash_info[bank - 1];
  66         if (fp->flash_id == FLASH_UNKNOWN)
  67                 return -1;
  68
  69         str = p;
  70         p = strchr(str, '-');
  71         if (p)
  72                 *p++ = '\0';
  73
  74         first = dectoul(str, &ep);
  75         if (ep == str || *ep != '\0' || first >= fp->sector_count)
  76                 return -1;
  77
  78         if (p) {
  79                 last = dectoul(p, &ep);
  80                 if (ep == p || *ep != '\0' ||
  81                     last < first || last >= fp->sector_count)
  82                         return -1;
  83         } else {
  84                 last = first;
  85         }
  86
  87         *pinfo = fp;
  88         *psf = first;
  89         *psl = last;
  90
  91         return 1;
  92 }
  93
  94 /*
  95  * Take *addr in Flash and adjust it to fall on the end of its sector
  96  */
  97 int flash_sect_roundb(ulong *addr)
  98 {
  99         flash_info_t *info;
 100         ulong bank, sector_end_addr;
 101         char found;
 102         int i;
 103
 104         /* find the end addr of the sector where the *addr is */
 105         found = 0;
 106         for (bank = 0; bank < CFI_FLASH_BANKS && !found; ++bank) {
 107                 info = &flash_info[bank];
 108                 for (i = 0; i < info->sector_count && !found; ++i) {
 109                         /* get the end address of the sector */
 110                         if (i == info->sector_count - 1) {
 111                                 sector_end_addr = info->start[0] +
 112                                                                 info->size - 1;
 113                         } else {
 114                                 sector_end_addr = info->start[i + 1] - 1;
 115                         }
 116
 117                         if (*addr <= sector_end_addr && *addr >= info->start[i]) {
 118                                 found = 1;
 119                                 /* adjust *addr if necessary */
 120                                 if (*addr < sector_end_addr)
 121                                         *addr = sector_end_addr;
 122                         } /* sector */
 123                 } /* bank */
 124         }
 125         if (!found) {
 126                 /* error, address not in flash */
 127                 printf("Error: end address (0x%08lx) not in flash!\n", *addr);
 128                 return 1;
 129         }
 130
 131         return 0;
 132 }
 133
 134 /*
 135  * This function computes the start and end addresses for both
 136  * erase and protect commands. The range of the addresses on which
 137  * either of the commands is to operate can be given in two forms:
 138  * 1. <cmd> start end - operate on <'start',  'end')
 139  * 2. <cmd> start +length - operate on <'start', start + length)
 140  * If the second form is used and the end address doesn't fall on the
 141  * sector boundary, than it will be adjusted to the next sector boundary.
 142  * If it isn't in the flash, the function will fail (return -1).
 143  * Input:
 144  *    arg1, arg2: address specification (i.e. both command arguments)
 145  * Output:
 146  *    addr_first, addr_last: computed address range
 147  * Return:
 148  *    1: success
 149  *   -1: failure (bad format, bad address).
 150  */
 151 static int
 152 addr_spec(char *arg1, char *arg2, ulong *addr_first, ulong *addr_last)
 153 {
 154         char *ep;
 155         char len_used; /* indicates if the "start +length" form used */
 156
 157         *addr_first = hextoul(arg1, &ep);
 158         if (ep == arg1 || *ep != '\0')
 159                 return -1;
 160
 161         len_used = 0;
 162         if (arg2 && *arg2 == '+') {
 163                 len_used = 1;
 164                 ++arg2;
 165         }
 166
 167         *addr_last = hextoul(arg2, &ep);
 168         if (ep == arg2 || *ep != '\0')
 169                 return -1;
 170
 171         if (len_used) {
 172                 /*
 173                  * *addr_last has the length, compute correct *addr_last
 174                  * XXX watch out for the integer overflow! Right now it is
 175                  * checked for in both the callers.
 176                  */
 177                 *addr_last = *addr_first + *addr_last - 1;
 178
 179                 /*
 180                  * It may happen that *addr_last doesn't fall on the sector
 181                  * boundary. We want to round such an address to the next
 182                  * sector boundary, so that the commands don't fail later on.
 183                  */
 184
 185                 if (flash_sect_roundb(addr_last) > 0)
 186                         return -1;
 187         } /* "start +length" from used */
 188
 189         return 1;
 190 }
 191
 192 static int
 193 flash_fill_sect_ranges(ulong addr_first, ulong addr_last,
 194                        int *s_first, int *s_last,
 195                        int *s_count)
 196 {
 197         flash_info_t *info;
 198         ulong bank;
 199         int rcode = 0;
 200
 201         *s_count = 0;
 202
 203         for (bank = 0; bank < CFI_FLASH_BANKS; ++bank) {
 204                 s_first[bank] = -1;     /* first sector to erase        */
 205                 s_last[bank] = -1;      /* last  sector to erase        */
 206         }
 207
 208         for (bank = 0, info = &flash_info[0];
 209              (bank < CFI_FLASH_BANKS) && (addr_first <= addr_last);
 210              ++bank, ++info) {
 211                 ulong b_end;
 212                 int sect;
 213                 short s_end;
 214
 215                 if (info->flash_id == FLASH_UNKNOWN)
 216                         continue;
 217
 218                 b_end = info->start[0] + info->size - 1;        /* bank end addr */
 219                 s_end = info->sector_count - 1;                 /* last sector   */
 220
 221                 for (sect = 0; sect < info->sector_count; ++sect) {
 222                         ulong end;      /* last address in current sect */
 223
 224                         end = (sect == s_end) ? b_end : info->start[sect + 1] - 1;
 225
 226                         if (addr_first > end)
 227                                 continue;
 228                         if (addr_last < info->start[sect])
 229                                 continue;
 230
 231                         if (addr_first == info->start[sect])
 232                                 s_first[bank] = sect;
 233
 234                         if (addr_last  == end)
 235                                 s_last[bank]  = sect;
 236                 }
 237                 if (s_first[bank] >= 0) {
 238                         if (s_last[bank] < 0) {
 239                                 if (addr_last > b_end) {
 240                                         s_last[bank] = s_end;
 241                                 } else {
 242                                         puts("Error: end address not on sector boundary\n");
 243                                         rcode = 1;
 244                                         break;
 245                                 }
 246                         }
 247                         if (s_last[bank] < s_first[bank]) {
 248                                 puts("Error: end sector precedes start sector\n");
 249                                 rcode = 1;
 250                                 break;
 251                         }
 252                         sect = s_last[bank];
 253                         addr_first = (sect == s_end) ? b_end + 1 : info->start[sect + 1];
 254                         (*s_count) += s_last[bank] - s_first[bank] + 1;
 255                 } else if (addr_first >= info->start[0] && addr_first < b_end) {
 256                         puts("Error: start address not on sector boundary\n");
 257                         rcode = 1;
 258                         break;
 259                 } else if (s_last[bank] >= 0) {
 260                         puts("Error: cannot span across banks when they are"
 261                              " mapped in reverse order\n");
 262                         rcode = 1;
 263                         break;
 264                 }
 265         }
 266
 267         return rcode;
 268 }
 269 #endif /* CONFIG_MTD_NOR_FLASH */
 270
 271 static int do_flinfo(struct cmd_tbl *cmdtp, int flag, int argc,
 272                      char *const argv[])
 273 {
 274 #ifdef CONFIG_MTD_NOR_FLASH
 275         ulong bank;
 276 #endif
 277
 278 #ifdef CONFIG_MTD_NOR_FLASH
 279         if (argc == 1) {        /* print info for all FLASH banks */
 280                 for (bank = 0; bank < CFI_FLASH_BANKS; ++bank) {
 281                         printf("\nBank # %ld: ", bank + 1);
 282
 283                         flash_print_info(&flash_info[bank]);
 284                 }
 285                 return 0;
 286         }
 287
 288         bank = hextoul(argv[1], NULL);
 289         if (bank < 1 || bank > CFI_FLASH_BANKS) {
 290                 printf("Only FLASH Banks # 1 ... # %d supported\n",
 291                        CFI_FLASH_BANKS);
 292                 return 1;
 293         }
 294         printf("\nBank # %ld: ", bank);
 295         flash_print_info(&flash_info[bank - 1]);
 296 #endif /* CONFIG_MTD_NOR_FLASH */
 297         return 0;
 298 }
 299
 300 static int do_flerase(struct cmd_tbl *cmdtp, int flag, int argc,
 301                       char *const argv[])
 302 {
 303 #ifdef CONFIG_MTD_NOR_FLASH
 304         flash_info_t *info = NULL;
 305         ulong bank, addr_first, addr_last;
 306         int n, sect_first = 0, sect_last = 0;
 307 #if defined(CONFIG_CMD_MTDPARTS)
 308         struct mtd_device *dev;
 309         struct part_info *part;
 310         u8 dev_type, dev_num, pnum;
 311 #endif
 312         int rcode = 0;
 313
 314         if (argc < 2)
 315                 return CMD_RET_USAGE;
 316
 317         if (strcmp(argv[1], "all") == 0) {
 318                 for (bank = 1; bank <= CFI_FLASH_BANKS; ++bank) {
 319                         printf("Erase Flash Bank # %ld ", bank);
 320                         info = &flash_info[bank - 1];
 321                         rcode = flash_erase(info, 0, info->sector_count - 1);
 322                 }
 323                 return rcode;
 324         }
 325
 326         n = abbrev_spec(argv[1], &info, &sect_first, &sect_last);
 327         if (n) {
 328                 if (n < 0) {
 329                         puts("Bad sector specification\n");
 330                         return 1;
 331                 }
 332                 printf("Erase Flash Sectors %d-%d in Bank # %zu ",
 333                        sect_first, sect_last, (info - flash_info) + 1);
 334                 rcode = flash_erase(info, sect_first, sect_last);
 335                 return rcode;
 336         }
 337
 338 #if defined(CONFIG_CMD_MTDPARTS)
 339         /* erase <part-id> - erase partition */
 340         if (argc == 2 && mtd_id_parse(argv[1], NULL, &dev_type, &dev_num) == 0) {
 341                 mtdparts_init();
 342                 if (find_dev_and_part(argv[1], &dev, &pnum, &part) == 0) {
 343                         if (dev->id->type == MTD_DEV_TYPE_NOR) {
 344                                 bank = dev->id->num;
 345                                 info = &flash_info[bank];
 346                                 addr_first = part->offset + info->start[0];
 347                                 addr_last = addr_first + part->size - 1;
 348
 349                                 printf("Erase Flash Partition %s, bank %ld, 0x%08lx - 0x%08lx ",
 350                                        argv[1], bank, addr_first,
 351                                        addr_last);
 352
 353                                 rcode = flash_sect_erase(addr_first, addr_last);
 354                                 return rcode;
 355                         }
 356
 357                         printf("cannot erase, not a NOR device\n");
 358                         return 1;
 359                 }
 360         }
 361 #endif
 362
 363         if (argc != 3)
 364                 return CMD_RET_USAGE;
 365
 366         if (strcmp(argv[1], "bank") == 0) {
 367                 bank = hextoul(argv[2], NULL);
 368                 if (bank < 1 || bank > CFI_FLASH_BANKS) {
 369                         printf("Only FLASH Banks # 1 ... # %d supported\n",
 370                                CFI_FLASH_BANKS);
 371                         return 1;
 372                 }
 373                 printf("Erase Flash Bank # %ld ", bank);
 374                 info = &flash_info[bank - 1];
 375                 rcode = flash_erase(info, 0, info->sector_count - 1);
 376                 return rcode;
 377         }
 378
 379         if (addr_spec(argv[1], argv[2], &addr_first, &addr_last) < 0) {
 380                 printf("Bad address format\n");
 381                 return 1;
 382         }
 383
 384         if (addr_first >= addr_last)
 385                 return CMD_RET_USAGE;
 386
 387         rcode = flash_sect_erase(addr_first, addr_last);
 388         return rcode;
 389 #else
 390         return 0;
 391 #endif /* CONFIG_MTD_NOR_FLASH */
 392 }
 393
 394 #ifdef CONFIG_MTD_NOR_FLASH
 395 int flash_sect_erase(ulong addr_first, ulong addr_last)
 396 {
 397         flash_info_t *info;
 398         ulong bank;
 399         int s_first[CFI_FLASH_BANKS], s_last[CFI_FLASH_BANKS];
 400         int erased = 0;
 401         int planned;
 402         int rcode = 0;
 403
 404         rcode = flash_fill_sect_ranges(addr_first, addr_last, s_first, s_last, &planned);
 405
 406         if (planned && rcode == 0) {
 407                 for (bank = 0, info = &flash_info[0];
 408                      bank < CFI_FLASH_BANKS && rcode == 0;
 409                      ++bank, ++info) {
 410                         if (s_first[bank] >= 0) {
 411                                 erased += s_last[bank] - s_first[bank] + 1;
 412                                 debug("Erase Flash from 0x%08lx to 0x%08lx in Bank # %ld ",
 413                                       info->start[s_first[bank]],
 414                                       (s_last[bank] == info->sector_count) ?
 415                                       info->start[0] + info->size - 1 :
 416                                       info->start[s_last[bank] + 1] - 1,
 417                                       bank + 1);
 418                                 rcode = flash_erase(info, s_first[bank],
 419                                                     s_last[bank]);
 420                         }
 421                 }
 422                 if (rcode == 0)
 423                         printf("Erased %d sectors\n", erased);
 424         } else if (rcode == 0) {
 425                 puts("Error: start and/or end address not on sector boundary\n");
 426                 rcode = 1;
 427         }
 428         return rcode;
 429 }
 430 #endif /* CONFIG_MTD_NOR_FLASH */
 431
 432 static int do_protect(struct cmd_tbl *cmdtp, int flag, int argc,
 433                       char *const argv[])
 434 {
 435         int rcode = 0;
 436 #ifdef CONFIG_MTD_NOR_FLASH
 437         flash_info_t *info = NULL;
 438         ulong bank;
 439         int i, n, sect_first = 0, sect_last = 0;
 440 #if defined(CONFIG_CMD_MTDPARTS)
 441         struct mtd_device *dev;
 442         struct part_info *part;
 443         u8 dev_type, dev_num, pnum;
 444 #endif
 445 #endif /* CONFIG_MTD_NOR_FLASH */
 446 #if defined(CONFIG_MTD_NOR_FLASH)
 447         int p;
 448         ulong addr_first, addr_last;
 449 #endif
 450
 451         if (argc < 3)
 452                 return CMD_RET_USAGE;
 453
 454 #if defined(CONFIG_MTD_NOR_FLASH)
 455         if (strcmp(argv[1], "off") == 0)
 456                 p = 0;
 457         else if (strcmp(argv[1], "on") == 0)
 458                 p = 1;
 459         else
 460                 return CMD_RET_USAGE;
 461 #endif
 462
 463 #ifdef CONFIG_MTD_NOR_FLASH
 464         if (strcmp(argv[2], "all") == 0) {
 465                 for (bank = 1; bank <= CFI_FLASH_BANKS; ++bank) {
 466                         info = &flash_info[bank - 1];
 467                         if (info->flash_id == FLASH_UNKNOWN)
 468                                 continue;
 469
 470                         printf("%sProtect Flash Bank # %ld\n",
 471                                p ? "" : "Un-", bank);
 472
 473                         for (i = 0; i < info->sector_count; ++i) {
 474 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 475                                 if (flash_real_protect(info, i, p))
 476                                         rcode = 1;
 477                                 putc('.');
 478 #else
 479                                 info->protect[i] = p;
 480 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 481                         }
 482 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 483                         if (!rcode)
 484                                 puts(" done\n");
 485 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 486                 }
 487                 return rcode;
 488         }
 489         n = abbrev_spec(argv[2], &info, &sect_first, &sect_last);
 490         if (n) {
 491                 if (n < 0) {
 492                         puts("Bad sector specification\n");
 493                         return 1;
 494                 }
 495                 printf("%sProtect Flash Sectors %d-%d in Bank # %zu\n",
 496                        p ? "" : "Un-", sect_first, sect_last,
 497                        (info - flash_info) + 1);
 498                 for (i = sect_first; i <= sect_last; i++) {
 499 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 500                         if (flash_real_protect(info, i, p))
 501                                 rcode =  1;
 502                         putc('.');
 503 #else
 504                         info->protect[i] = p;
 505 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 506                 }
 507
 508 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 509                 if (!rcode)
 510                         puts(" done\n");
 511 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 512
 513                 return rcode;
 514         }
 515
 516 #if defined(CONFIG_CMD_MTDPARTS)
 517         /* protect on/off <part-id> */
 518         if (argc == 3 && mtd_id_parse(argv[2], NULL, &dev_type, &dev_num) == 0) {
 519                 mtdparts_init();
 520                 if (find_dev_and_part(argv[2], &dev, &pnum, &part) == 0) {
 521                         if (dev->id->type == MTD_DEV_TYPE_NOR) {
 522                                 bank = dev->id->num;
 523                                 info = &flash_info[bank];
 524                                 addr_first = part->offset + info->start[0];
 525                                 addr_last = addr_first + part->size - 1;
 526
 527                                 printf("%sProtect Flash Partition %s, "
 528                                        "bank %ld, 0x%08lx - 0x%08lx\n",
 529                                        p ? "" : "Un", argv[1],
 530                                        bank, addr_first, addr_last);
 531
 532                                 rcode = flash_sect_protect(p, addr_first,
 533                                                            addr_last);
 534                                 return rcode;
 535                         }
 536
 537                         printf("cannot %sprotect, not a NOR device\n",
 538                                p ? "" : "un");
 539                         return 1;
 540                 }
 541         }
 542 #endif
 543
 544         if (argc != 4)
 545                 return CMD_RET_USAGE;
 546
 547         if (strcmp(argv[2], "bank") == 0) {
 548                 bank = hextoul(argv[3], NULL);
 549                 if (bank < 1 || bank > CFI_FLASH_BANKS) {
 550                         printf("Only FLASH Banks # 1 ... # %d supported\n",
 551                                CFI_FLASH_BANKS);
 552                         return 1;
 553                 }
 554                 printf("%sProtect Flash Bank # %ld\n",
 555                        p ? "" : "Un-", bank);
 556                 info = &flash_info[bank - 1];
 557
 558                 if (info->flash_id == FLASH_UNKNOWN) {
 559                         puts("missing or unknown FLASH type\n");
 560                         return 1;
 561                 }
 562                 for (i = 0; i < info->sector_count; ++i) {
 563 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 564                         if (flash_real_protect(info, i, p))
 565                                 rcode =  1;
 566                         putc('.');
 567 #else
 568                         info->protect[i] = p;
 569 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 570                 }
 571
 572 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 573                 if (!rcode)
 574                         puts(" done\n");
 575 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 576
 577                 return rcode;
 578         }
 579
 580         if (addr_spec(argv[2], argv[3], &addr_first, &addr_last) < 0) {
 581                 printf("Bad address format\n");
 582                 return 1;
 583         }
 584
 585         if (addr_first >= addr_last)
 586                 return CMD_RET_USAGE;
 587
 588         rcode = flash_sect_protect(p, addr_first, addr_last);
 589 #endif /* CONFIG_MTD_NOR_FLASH */
 590         return rcode;
 591 }
 592
 593 #ifdef CONFIG_MTD_NOR_FLASH
 594 int flash_sect_protect(int p, ulong addr_first, ulong addr_last)
 595 {
 596         flash_info_t *info;
 597         ulong bank;
 598         int s_first[CFI_FLASH_BANKS], s_last[CFI_FLASH_BANKS];
 599         int protected, i;
 600         int planned;
 601         int rcode;
 602
 603         rcode = flash_fill_sect_ranges(addr_first, addr_last, s_first, s_last, &planned);
 604
 605         protected = 0;
 606
 607         if (planned && rcode == 0) {
 608                 for (bank = 0, info = &flash_info[0];
 609                      bank < CFI_FLASH_BANKS; ++bank, ++info) {
 610                         if (info->flash_id == FLASH_UNKNOWN)
 611                                 continue;
 612
 613                         if (s_first[bank] >= 0 && s_first[bank] <= s_last[bank]) {
 614                                 debug("%sProtecting sectors %d..%d in bank %ld\n",
 615                                       p ? "" : "Un-", s_first[bank],
 616                                       s_last[bank], bank + 1);
 617                                 protected += s_last[bank] - s_first[bank] + 1;
 618                                 for (i = s_first[bank]; i <= s_last[bank]; ++i) {
 619 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 620                                         if (flash_real_protect(info, i, p))
 621                                                 rcode = 1;
 622                                         putc('.');
 623 #else
 624                                         info->protect[i] = p;
 625 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 626                                 }
 627                         }
 628                 }
 629 #if defined(CONFIG_SYS_FLASH_PROTECTION)
 630                 puts(" done\n");
 631 #endif  /* CONFIG_SYS_FLASH_PROTECTION */
 632
 633                 printf("%sProtected %d sectors\n",
 634                        p ? "" : "Un-", protected);
 635         } else if (rcode == 0) {
 636                 puts("Error: start and/or end address not on sector boundary\n");
 637                 rcode = 1;
 638         }
 639         return rcode;
 640 }
 641 #endif /* CONFIG_MTD_NOR_FLASH */
 642
 643 /**************************************************/
 644 #if defined(CONFIG_CMD_MTDPARTS)
 645 # define TMP_ERASE      "erase <part-id>\n    - erase partition\n"
 646 # define TMP_PROT_ON    "protect on <part-id>\n    - protect partition\n"
 647 # define TMP_PROT_OFF   "protect off <part-id>\n    - make partition writable\n"
 648 #else
 649 # define TMP_ERASE      /* empty */
 650 # define TMP_PROT_ON    /* empty */
 651 # define TMP_PROT_OFF   /* empty */
 652 #endif
 653
 654 U_BOOT_CMD(
 655         flinfo,    2,    1,    do_flinfo,
 656         "print FLASH memory information",
 657         "\n    - print information for all FLASH memory banks\n"
 658         "flinfo N\n    - print information for FLASH memory bank # N"
 659 );
 660
 661 U_BOOT_CMD(
 662         erase,   3,   0,  do_flerase,
 663         "erase FLASH memory",
 664         "start end\n"
 665         "    - erase FLASH from addr 'start' to addr 'end'\n"
 666         "erase start +len\n"
 667         "    - erase FLASH from addr 'start' to the end of sect w/addr 'start'+'len'-1\n"
 668         "erase N:SF[-SL]\n    - erase sectors SF-SL in FLASH bank # N\n"
 669         "erase bank N\n    - erase FLASH bank # N\n"
 670         TMP_ERASE
 671         "erase all\n    - erase all FLASH banks"
 672 );
 673
 674 U_BOOT_CMD(
 675         protect,  4,  0,   do_protect,
 676         "enable or disable FLASH write protection",
 677         "on  start end\n"
 678         "    - protect FLASH from addr 'start' to addr 'end'\n"
 679         "protect on start +len\n"
 680         "    - protect FLASH from addr 'start' to end of sect w/addr 'start'+'len'-1\n"
 681         "protect on  N:SF[-SL]\n"
 682         "    - protect sectors SF-SL in FLASH bank # N\n"
 683         "protect on  bank N\n    - protect FLASH bank # N\n"
 684         TMP_PROT_ON
 685         "protect on  all\n    - protect all FLASH banks\n"
 686         "protect off start end\n"
 687         "    - make FLASH from addr 'start' to addr 'end' writable\n"
 688         "protect off start +len\n"
 689         "    - make FLASH from addr 'start' to end of sect w/addr 'start'+'len'-1 wrtable\n"
 690         "protect off N:SF[-SL]\n"
 691         "    - make sectors SF-SL writable in FLASH bank # N\n"
 692         "protect off bank N\n    - make FLASH bank # N writable\n"
 693         TMP_PROT_OFF
 694         "protect off all\n    - make all FLASH banks writable"
 695 );
 696
 697 #undef  TMP_ERASE
 698 #undef  TMP_PROT_ON
 699 #undef  TMP_PROT_OFF