git.sur5r.net Git - u-boot/blob - cmd/flash.c

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