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