common/cmd_flash.c

   1 /*
   2  * (C) Copyright 2000
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 /*
  25  * FLASH support
  26  */
  27 #include <common.h>
  28 #include <command.h>
  29
  30 #ifdef CONFIG_HAS_DATAFLASH
  31 #include <dataflash.h>
  32 #endif
  33
  34 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
  35 #include <jffs2/jffs2.h>
  36
  37 /* parition handling routines */
  38 int mtdparts_init(void);
  39 int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num);
  40 int find_dev_and_part(const char *id, struct mtd_device **dev,
  41                 u8 *part_num, struct part_info **part);
  42 #endif
  43
  44 extern flash_info_t flash_info[];       /* info for FLASH chips */
  45
  46 /*
  47  * The user interface starts numbering for Flash banks with 1
  48  * for historical reasons.
  49  */
  50
  51 /*
  52  * this routine looks for an abbreviated flash range specification.
  53  * the syntax is B:SF[-SL], where B is the bank number, SF is the first
  54  * sector to erase, and SL is the last sector to erase (defaults to SF).
  55  * bank numbers start at 1 to be consistent with other specs, sector numbers
  56  * start at zero.
  57  *
  58  * returns:     1       - correct spec; *pinfo, *psf and *psl are
  59  *                        set appropriately
  60  *              0       - doesn't look like an abbreviated spec
  61  *              -1      - looks like an abbreviated spec, but got
  62  *                        a parsing error, a number out of range,
  63  *                        or an invalid flash bank.
  64  */
  65 static int
  66 abbrev_spec (char *str, flash_info_t ** pinfo, int *psf, int *psl)
  67 {
  68         flash_info_t *fp;
  69         int bank, first, last;
  70         char *p, *ep;
  71
  72         if ((p = strchr (str, ':')) == NULL)
  73                 return 0;
  74         *p++ = '\0';
  75
  76         bank = simple_strtoul (str, &ep, 10);
  77         if (ep == str || *ep != '\0' ||
  78                 bank < 1 || bank > CFG_MAX_FLASH_BANKS ||
  79                 (fp = &flash_info[bank - 1])->flash_id == FLASH_UNKNOWN)
  80                 return -1;
  81
  82         str = p;
  83         if ((p = strchr (str, '-')) != NULL)
  84                 *p++ = '\0';
  85
  86         first = simple_strtoul (str, &ep, 10);
  87         if (ep == str || *ep != '\0' || first >= fp->sector_count)
  88                 return -1;
  89
  90         if (p != NULL) {
  91                 last = simple_strtoul (p, &ep, 10);
  92                 if (ep == p || *ep != '\0' ||
  93                         last < first || last >= fp->sector_count)
  94                         return -1;
  95         } else {
  96                 last = first;
  97         }
  98
  99         *pinfo = fp;
 100         *psf = first;
 101         *psl = last;
 102
 103         return 1;
 104 }
 105
 106 /*
 107  * This function computes the start and end addresses for both
 108  * erase and protect commands. The range of the addresses on which
 109  * either of the commands is to operate can be given in two forms:
 110  * 1. <cmd> start end - operate on <'start',  'end')
 111  * 2. <cmd> start +length - operate on <'start', start + length)
 112  * If the second form is used and the end address doesn't fall on the
 113  * sector boundary, than it will be adjusted to the next sector boundary.
 114  * If it isn't in the flash, the function will fail (return -1).
 115  * Input:
 116  *    arg1, arg2: address specification (i.e. both command arguments)
 117  * Output:
 118  *    addr_first, addr_last: computed address range
 119  * Return:
 120  *    1: success
 121  *   -1: failure (bad format, bad address).
 122 */
 123 static int
 124 addr_spec(char *arg1, char *arg2, ulong *addr_first, ulong *addr_last)
 125 {
 126         char *ep;
 127         char len_used; /* indicates if the "start +length" form used */
 128         char found;
 129         ulong bank;
 130
 131         *addr_first = simple_strtoul(arg1, &ep, 16);
 132         if (ep == arg1 || *ep != '\0')
 133                 return -1;
 134
 135         len_used = 0;
 136         if (arg2 && *arg2 == '+'){
 137                 len_used = 1;
 138                 ++arg2;
 139         }
 140
 141         *addr_last = simple_strtoul(arg2, &ep, 16);
 142         if (ep == arg2 || *ep != '\0')
 143                 return -1;
 144
 145         if (len_used){
 146                 /*
 147                  * *addr_last has the length, compute correct *addr_last
 148                  * XXX watch out for the integer overflow! Right now it is
 149                  * checked for in both the callers.
 150                  */
 151                 *addr_last = *addr_first + *addr_last - 1;
 152
 153                 /*
 154                  * It may happen that *addr_last doesn't fall on the sector
 155                  * boundary. We want to round such an address to the next
 156                  * sector boundary, so that the commands don't fail later on.
 157                  */
 158
 159                 /* find the end addr of the sector where the *addr_last is */
 160                 found = 0;
 161                 for (bank = 0; bank < CFG_MAX_FLASH_BANKS && !found; ++bank){
 162                         int i;
 163                         flash_info_t *info = &flash_info[bank];
 164                         for (i = 0; i < info->sector_count && !found; ++i){
 165                                 /* get the end address of the sector */
 166                                 ulong sector_end_addr;
 167                                 if (i == info->sector_count - 1){
 168                                         sector_end_addr =
 169                                                 info->start[0] + info->size - 1;
 170                                 } else {
 171                                         sector_end_addr =
 172                                                 info->start[i+1] - 1;
 173                                 }
 174                                 if (*addr_last <= sector_end_addr &&
 175                                                 *addr_last >= info->start[i]){
 176                                         /* sector found */
 177                                         found = 1;
 178                                         /* adjust *addr_last if necessary */
 179                                         if (*addr_last < sector_end_addr){
 180                                                 *addr_last = sector_end_addr;
 181                                         }
 182                                 }
 183                         } /* sector */
 184                 } /* bank */
 185                 if (!found){
 186                         /* error, addres not in flash */
 187                         printf("Error: end address (0x%08lx) not in flash!\n",
 188                                                                 *addr_last);
 189                         return -1;
 190                 }
 191         } /* "start +length" from used */
 192
 193         return 1;
 194 }
 195
 196 static int
 197 flash_fill_sect_ranges (ulong addr_first, ulong addr_last,
 198                         int *s_first, int *s_last,
 199                         int *s_count )
 200 {
 201         flash_info_t *info;
 202         ulong bank;
 203         int rcode = 0;
 204
 205         *s_count = 0;
 206
 207         for (bank=0; bank < CFG_MAX_FLASH_BANKS; ++bank) {
 208                 s_first[bank] = -1;     /* first sector to erase        */
 209                 s_last [bank] = -1;     /* last  sector to erase        */
 210         }
 211
 212         for (bank=0,info=&flash_info[0];
 213              (bank < CFG_MAX_FLASH_BANKS) && (addr_first <= addr_last);
 214              ++bank, ++info) {
 215                 ulong b_end;
 216                 int sect;
 217                 short s_end;
 218
 219                 if (info->flash_id == FLASH_UNKNOWN) {
 220                         continue;
 221                 }
 222
 223                 b_end = info->start[0] + info->size - 1;        /* bank end addr */
 224                 s_end = info->sector_count - 1;                 /* last sector   */
 225
 226
 227                 for (sect=0; sect < info->sector_count; ++sect) {
 228                         ulong end;      /* last address in current sect */
 229
 230                         end = (sect == s_end) ? b_end : info->start[sect + 1] - 1;
 231
 232                         if (addr_first > end)
 233                                 continue;
 234                         if (addr_last < info->start[sect])
 235                                 continue;
 236
 237                         if (addr_first == info->start[sect]) {
 238                                 s_first[bank] = sect;
 239                         }
 240                         if (addr_last  == end) {
 241                                 s_last[bank]  = sect;
 242                         }
 243                 }
 244                 if (s_first[bank] >= 0) {
 245                         if (s_last[bank] < 0) {
 246                                 if (addr_last > b_end) {
 247                                         s_last[bank] = s_end;
 248                                 } else {
 249                                         puts ("Error: end address"
 250                                                 " not on sector boundary\n");
 251                                         rcode = 1;
 252                                         break;
 253                                 }
 254                         }
 255                         if (s_last[bank] < s_first[bank]) {
 256                                 puts ("Error: end sector"
 257                                         " precedes start sector\n");
 258                                 rcode = 1;
 259                                 break;
 260                         }
 261                         sect = s_last[bank];
 262                         addr_first = (sect == s_end) ? b_end + 1: info->start[sect + 1];
 263                         (*s_count) += s_last[bank] - s_first[bank] + 1;
 264                 } else if (addr_first >= info->start[0] && addr_first < b_end) {
 265                         puts ("Error: start address not on sector boundary\n");
 266                         rcode = 1;
 267                         break;
 268                 } else if (s_last[bank] >= 0) {
 269                         puts ("Error: cannot span across banks when they are"
 270                                " mapped in reverse order\n");
 271                         rcode = 1;
 272                         break;
 273                 }
 274         }
 275
 276         return rcode;
 277 }
 278
 279 int do_flinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 280 {
 281         ulong bank;
 282
 283 #ifdef CONFIG_HAS_DATAFLASH
 284         dataflash_print_info();
 285 #endif
 286
 287         if (argc == 1) {        /* print info for all FLASH banks */
 288                 for (bank=0; bank <CFG_MAX_FLASH_BANKS; ++bank) {
 289                         printf ("\nBank # %ld: ", bank+1);
 290
 291                         flash_print_info (&flash_info[bank]);
 292                 }
 293                 return 0;
 294         }
 295
 296         bank = simple_strtoul(argv[1], NULL, 16);
 297         if ((bank < 1) || (bank > CFG_MAX_FLASH_BANKS)) {
 298                 printf ("Only FLASH Banks # 1 ... # %d supported\n",
 299                         CFG_MAX_FLASH_BANKS);
 300                 return 1;
 301         }
 302         printf ("\nBank # %ld: ", bank);
 303         flash_print_info (&flash_info[bank-1]);
 304         return 0;
 305 }
 306
 307 int do_flerase (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 308 {
 309         flash_info_t *info;
 310         ulong bank, addr_first, addr_last;
 311         int n, sect_first, sect_last;
 312 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 313         struct mtd_device *dev;
 314         struct part_info *part;
 315         u8 dev_type, dev_num, pnum;
 316 #endif
 317         int rcode = 0;
 318
 319         if (argc < 2) {
 320                 printf ("Usage:\n%s\n", cmdtp->usage);
 321                 return 1;
 322         }
 323
 324         if (strcmp(argv[1], "all") == 0) {
 325                 for (bank=1; bank<=CFG_MAX_FLASH_BANKS; ++bank) {
 326                         printf ("Erase Flash Bank # %ld ", bank);
 327                         info = &flash_info[bank-1];
 328                         rcode = flash_erase (info, 0, info->sector_count-1);
 329                 }
 330                 return rcode;
 331         }
 332
 333         if ((n = abbrev_spec(argv[1], &info, &sect_first, &sect_last)) != 0) {
 334                 if (n < 0) {
 335                         puts ("Bad sector specification\n");
 336                         return 1;
 337                 }
 338                 printf ("Erase Flash Sectors %d-%d in Bank # %d ",
 339                         sect_first, sect_last, (info-flash_info)+1);
 340                 rcode = flash_erase(info, sect_first, sect_last);
 341                 return rcode;
 342         }
 343
 344 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 345         /* erase <part-id> - erase partition */
 346         if ((argc == 2) && (id_parse(argv[1], NULL, &dev_type, &dev_num) == 0)) {
 347                 mtdparts_init();
 348                 if (find_dev_and_part(argv[1], &dev, &pnum, &part) == 0) {
 349                         if (dev->id->type == MTD_DEV_TYPE_NOR) {
 350                                 bank = dev->id->num;
 351                                 info = &flash_info[bank];
 352                                 addr_first = part->offset + info->start[0];
 353                                 addr_last = addr_first + part->size - 1;
 354
 355                                 printf ("Erase Flash Parition %s, "
 356                                                 "bank %d, 0x%08lx - 0x%08lx ",
 357                                                 argv[1], bank, addr_first,
 358                                                 addr_last);
 359
 360                                 rcode = flash_sect_erase(addr_first, addr_last);
 361                                 return rcode;
 362                         }
 363
 364                         printf("cannot erase, not a NOR device\n");
 365                         return 1;
 366                 }
 367         }
 368 #endif
 369
 370         if (argc != 3) {
 371                 printf ("Usage:\n%s\n", cmdtp->usage);
 372                 return 1;
 373         }
 374
 375         if (strcmp(argv[1], "bank") == 0) {
 376                 bank = simple_strtoul(argv[2], NULL, 16);
 377                 if ((bank < 1) || (bank > CFG_MAX_FLASH_BANKS)) {
 378                         printf ("Only FLASH Banks # 1 ... # %d supported\n",
 379                                 CFG_MAX_FLASH_BANKS);
 380                         return 1;
 381                 }
 382                 printf ("Erase Flash Bank # %ld ", bank);
 383                 info = &flash_info[bank-1];
 384                 rcode = flash_erase (info, 0, info->sector_count-1);
 385                 return rcode;
 386         }
 387
 388         if (addr_spec(argv[1], argv[2], &addr_first, &addr_last) < 0){
 389                 printf ("Bad address format\n");
 390                 return 1;
 391         }
 392
 393         if (addr_first >= addr_last) {
 394                 printf ("Usage:\n%s\n", cmdtp->usage);
 395                 return 1;
 396         }
 397
 398         rcode = flash_sect_erase(addr_first, addr_last);
 399         return rcode;
 400 }
 401
 402 int flash_sect_erase (ulong addr_first, ulong addr_last)
 403 {
 404         flash_info_t *info;
 405         ulong bank;
 406 #ifdef CFG_MAX_FLASH_BANKS_DETECT
 407         int s_first[CFG_MAX_FLASH_BANKS_DETECT], s_last[CFG_MAX_FLASH_BANKS_DETECT];
 408 #else
 409         int s_first[CFG_MAX_FLASH_BANKS], s_last[CFG_MAX_FLASH_BANKS];
 410 #endif
 411         int erased = 0;
 412         int planned;
 413         int rcode = 0;
 414
 415         rcode = flash_fill_sect_ranges (addr_first, addr_last,
 416                                         s_first, s_last, &planned );
 417
 418         if (planned && (rcode == 0)) {
 419                 for (bank=0,info=&flash_info[0];
 420                      (bank < CFG_MAX_FLASH_BANKS) && (rcode == 0);
 421                      ++bank, ++info) {
 422                         if (s_first[bank]>=0) {
 423                                 erased += s_last[bank] - s_first[bank] + 1;
 424                                 debug ("Erase Flash from 0x%08lx to 0x%08lx "
 425                                         "in Bank # %ld ",
 426                                         info->start[s_first[bank]],
 427                                         (s_last[bank] == info->sector_count) ?
 428                                                 info->start[0] + info->size - 1:
 429                                                 info->start[s_last[bank]+1] - 1,
 430                                         bank+1);
 431                                 rcode = flash_erase (info, s_first[bank], s_last[bank]);
 432                         }
 433                 }
 434                 printf ("Erased %d sectors\n", erased);
 435         } else if (rcode == 0) {
 436                 puts ("Error: start and/or end address"
 437                         " not on sector boundary\n");
 438                 rcode = 1;
 439         }
 440         return rcode;
 441 }
 442
 443 int do_protect (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 444 {
 445         flash_info_t *info;
 446         ulong bank, addr_first, addr_last;
 447         int i, p, n, sect_first, sect_last;
 448 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 449         struct mtd_device *dev;
 450         struct part_info *part;
 451         u8 dev_type, dev_num, pnum;
 452 #endif
 453         int rcode = 0;
 454 #ifdef CONFIG_HAS_DATAFLASH
 455         int status;
 456 #endif
 457
 458         if (argc < 3) {
 459                 printf ("Usage:\n%s\n", cmdtp->usage);
 460                 return 1;
 461         }
 462
 463         if (strcmp(argv[1], "off") == 0) {
 464                 p = 0;
 465         } else if (strcmp(argv[1], "on") == 0) {
 466                 p = 1;
 467         } else {
 468                 printf ("Usage:\n%s\n", cmdtp->usage);
 469                 return 1;
 470         }
 471
 472 #ifdef CONFIG_HAS_DATAFLASH
 473         if ((strcmp(argv[2], "all") != 0) && (strcmp(argv[2], "bank") != 0)) {
 474                 addr_first = simple_strtoul(argv[2], NULL, 16);
 475                 addr_last  = simple_strtoul(argv[3], NULL, 16);
 476
 477                 if (addr_dataflash(addr_first) && addr_dataflash(addr_last)) {
 478                         status = dataflash_real_protect(p,addr_first,addr_last);
 479                         if (status < 0){
 480                                 puts ("Bad DataFlash sector specification\n");
 481                                 return 1;
 482                         }
 483                         printf("%sProtect %d DataFlash Sectors\n",
 484                                 p ? "" : "Un-", status);
 485                         return 0;
 486                 }
 487         }
 488 #endif
 489
 490         if (strcmp(argv[2], "all") == 0) {
 491                 for (bank=1; bank<=CFG_MAX_FLASH_BANKS; ++bank) {
 492                         info = &flash_info[bank-1];
 493                         if (info->flash_id == FLASH_UNKNOWN) {
 494                                 continue;
 495                         }
 496                         printf ("%sProtect Flash Bank # %ld\n",
 497                                 p ? "" : "Un-", bank);
 498
 499                         for (i=0; i<info->sector_count; ++i) {
 500 #if defined(CFG_FLASH_PROTECTION)
 501                                 if (flash_real_protect(info, i, p))
 502                                         rcode = 1;
 503                                 putc ('.');
 504 #else
 505                                 info->protect[i] = p;
 506 #endif  /* CFG_FLASH_PROTECTION */
 507                         }
 508 #if defined(CFG_FLASH_PROTECTION)
 509                         if (!rcode) puts (" done\n");
 510 #endif  /* CFG_FLASH_PROTECTION */
 511                 }
 512                 return rcode;
 513         }
 514
 515         if ((n = abbrev_spec(argv[2], &info, &sect_first, &sect_last)) != 0) {
 516                 if (n < 0) {
 517                         puts ("Bad sector specification\n");
 518                         return 1;
 519                 }
 520                 printf("%sProtect Flash Sectors %d-%d in Bank # %d\n",
 521                         p ? "" : "Un-", sect_first, sect_last,
 522                         (info-flash_info)+1);
 523                 for (i = sect_first; i <= sect_last; i++) {
 524 #if defined(CFG_FLASH_PROTECTION)
 525                         if (flash_real_protect(info, i, p))
 526                                 rcode =  1;
 527                         putc ('.');
 528 #else
 529                         info->protect[i] = p;
 530 #endif  /* CFG_FLASH_PROTECTION */
 531                 }
 532
 533 #if defined(CFG_FLASH_PROTECTION)
 534                 if (!rcode) puts (" done\n");
 535 #endif  /* CFG_FLASH_PROTECTION */
 536
 537                 return rcode;
 538         }
 539
 540 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 541         /* protect on/off <part-id> */
 542         if ((argc == 3) && (id_parse(argv[2], NULL, &dev_type, &dev_num) == 0)) {
 543                 mtdparts_init();
 544                 if (find_dev_and_part(argv[2], &dev, &pnum, &part) == 0) {
 545                         if (dev->id->type == MTD_DEV_TYPE_NOR) {
 546                                 bank = dev->id->num;
 547                                 info = &flash_info[bank];
 548                                 addr_first = part->offset + info->start[0];
 549                                 addr_last = addr_first + part->size - 1;
 550
 551                                 printf ("%sProtect Flash Parition %s, "
 552                                                 "bank %d, 0x%08lx - 0x%08lx\n",
 553                                                 p ? "" : "Un", argv[1],
 554                                                 bank, addr_first, addr_last);
 555
 556                                 rcode = flash_sect_protect (p, addr_first, addr_last);
 557                                 return rcode;
 558                         }
 559
 560                         printf("cannot %sprotect, not a NOR device\n",
 561                                         p ? "" : "un");
 562                         return 1;
 563                 }
 564         }
 565 #endif
 566
 567         if (argc != 4) {
 568                 printf ("Usage:\n%s\n", cmdtp->usage);
 569                 return 1;
 570         }
 571
 572         if (strcmp(argv[2], "bank") == 0) {
 573                 bank = simple_strtoul(argv[3], NULL, 16);
 574                 if ((bank < 1) || (bank > CFG_MAX_FLASH_BANKS)) {
 575                         printf ("Only FLASH Banks # 1 ... # %d supported\n",
 576                                 CFG_MAX_FLASH_BANKS);
 577                         return 1;
 578                 }
 579                 printf ("%sProtect Flash Bank # %ld\n",
 580                         p ? "" : "Un-", bank);
 581                 info = &flash_info[bank-1];
 582
 583                 if (info->flash_id == FLASH_UNKNOWN) {
 584                         puts ("missing or unknown FLASH type\n");
 585                         return 1;
 586                 }
 587                 for (i=0; i<info->sector_count; ++i) {
 588 #if defined(CFG_FLASH_PROTECTION)
 589                         if (flash_real_protect(info, i, p))
 590                                 rcode =  1;
 591                         putc ('.');
 592 #else
 593                         info->protect[i] = p;
 594 #endif  /* CFG_FLASH_PROTECTION */
 595                 }
 596
 597 #if defined(CFG_FLASH_PROTECTION)
 598                 if (!rcode) puts (" done\n");
 599 #endif  /* CFG_FLASH_PROTECTION */
 600
 601                 return rcode;
 602         }
 603
 604         if (addr_spec(argv[2], argv[3], &addr_first, &addr_last) < 0){
 605                 printf("Bad address format\n");
 606                 return 1;
 607         }
 608
 609         if (addr_first >= addr_last) {
 610                 printf ("Usage:\n%s\n", cmdtp->usage);
 611                 return 1;
 612         }
 613         rcode = flash_sect_protect (p, addr_first, addr_last);
 614         return rcode;
 615 }
 616
 617
 618 int flash_sect_protect (int p, ulong addr_first, ulong addr_last)
 619 {
 620         flash_info_t *info;
 621         ulong bank;
 622 #ifdef CFG_MAX_FLASH_BANKS_DETECT
 623         int s_first[CFG_MAX_FLASH_BANKS_DETECT], s_last[CFG_MAX_FLASH_BANKS_DETECT];
 624 #else
 625         int s_first[CFG_MAX_FLASH_BANKS], s_last[CFG_MAX_FLASH_BANKS];
 626 #endif
 627         int protected, i;
 628         int planned;
 629         int rcode;
 630
 631         rcode = flash_fill_sect_ranges( addr_first, addr_last, s_first, s_last, &planned );
 632
 633         protected = 0;
 634
 635         if (planned && (rcode == 0)) {
 636                 for (bank=0,info=&flash_info[0]; bank < CFG_MAX_FLASH_BANKS; ++bank, ++info) {
 637                         if (info->flash_id == FLASH_UNKNOWN) {
 638                                 continue;
 639                         }
 640
 641                         if (s_first[bank]>=0 && s_first[bank]<=s_last[bank]) {
 642                                 debug ("%sProtecting sectors %d..%d in bank %ld\n",
 643                                         p ? "" : "Un-",
 644                                         s_first[bank], s_last[bank], bank+1);
 645                                 protected += s_last[bank] - s_first[bank] + 1;
 646                                 for (i=s_first[bank]; i<=s_last[bank]; ++i) {
 647 #if defined(CFG_FLASH_PROTECTION)
 648                                         if (flash_real_protect(info, i, p))
 649                                                 rcode = 1;
 650                                         putc ('.');
 651 #else
 652                                         info->protect[i] = p;
 653 #endif  /* CFG_FLASH_PROTECTION */
 654                                 }
 655                         }
 656                 }
 657 #if defined(CFG_FLASH_PROTECTION)
 658                 puts (" done\n");
 659 #endif  /* CFG_FLASH_PROTECTION */
 660
 661                 printf ("%sProtected %d sectors\n",
 662                         p ? "" : "Un-", protected);
 663         } else if (rcode == 0) {
 664                 puts ("Error: start and/or end address"
 665                         " not on sector boundary\n");
 666                 rcode = 1;
 667         }
 668         return rcode;
 669 }
 670
 671
 672 /**************************************************/
 673 #if defined(CONFIG_CMD_JFFS2) && defined(CONFIG_JFFS2_CMDLINE)
 674 # define TMP_ERASE      "erase <part-id>\n    - erase partition\n"
 675 # define TMP_PROT_ON    "protect on <part-id>\n    - protect partition\n"
 676 # define TMP_PROT_OFF   "protect off <part-id>\n    - make partition writable\n"
 677 #else
 678 # define TMP_ERASE      /* empty */
 679 # define TMP_PROT_ON    /* empty */
 680 # define TMP_PROT_OFF   /* empty */
 681 #endif
 682
 683 U_BOOT_CMD(
 684         flinfo,    2,    1,    do_flinfo,
 685         "flinfo  - print FLASH memory information\n",
 686         "\n    - print information for all FLASH memory banks\n"
 687         "flinfo N\n    - print information for FLASH memory bank # N\n"
 688 );
 689
 690 U_BOOT_CMD(
 691         erase,   3,   0,  do_flerase,
 692         "erase   - erase FLASH memory\n",
 693         "start end\n"
 694         "    - erase FLASH from addr 'start' to addr 'end'\n"
 695         "erase start +len\n"
 696         "    - erase FLASH from addr 'start' to the end of sect "
 697         "w/addr 'start'+'len'-1\n"
 698         "erase N:SF[-SL]\n    - erase sectors SF-SL in FLASH bank # N\n"
 699         "erase bank N\n    - erase FLASH bank # N\n"
 700         TMP_ERASE
 701         "erase all\n    - erase all FLASH banks\n"
 702 );
 703
 704 U_BOOT_CMD(
 705         protect,  4,  0,   do_protect,
 706         "protect - enable or disable FLASH write protection\n",
 707         "on  start end\n"
 708         "    - protect FLASH from addr 'start' to addr 'end'\n"
 709         "protect on start +len\n"
 710         "    - protect FLASH from addr 'start' to end of sect "
 711         "w/addr 'start'+'len'-1\n"
 712         "protect on  N:SF[-SL]\n"
 713         "    - protect sectors SF-SL in FLASH bank # N\n"
 714         "protect on  bank N\n    - protect FLASH bank # N\n"
 715         TMP_PROT_ON
 716         "protect on  all\n    - protect all FLASH banks\n"
 717         "protect off start end\n"
 718         "    - make FLASH from addr 'start' to addr 'end' writable\n"
 719         "protect off start +len\n"
 720         "    - make FLASH from addr 'start' to end of sect "
 721         "w/addr 'start'+'len'-1 wrtable\n"
 722         "protect off N:SF[-SL]\n"
 723         "    - make sectors SF-SL writable in FLASH bank # N\n"
 724         "protect off bank N\n    - make FLASH bank # N writable\n"
 725         TMP_PROT_OFF
 726         "protect off all\n    - make all FLASH banks writable\n"
 727 );
 728
 729 #undef  TMP_ERASE
 730 #undef  TMP_PROT_ON
 731 #undef  TMP_PROT_OFF