board/hymod/eeprom.c

   1 /*
   2  * (C) Copyright 2001
   3  * Murray Jensen, CSIRO-MIT, <Murray.Jensen@csiro.au>
   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 #include <common.h>
  25 #include <mpc8260.h>
  26
  27 /* imports from fetch.c */
  28 extern int fetch_and_parse (char *, ulong, int (*)(uchar *, uchar *));
  29
  30 /* imports from input.c */
  31 extern int hymod_get_serno (const char *);
  32
  33 /* this is relative to the root of the server's tftp directory */
  34 static char *def_bddb_cfgdir = "/hymod/bddb";
  35
  36 static int
  37 hymod_eeprom_load (int which, hymod_eeprom_t *ep)
  38 {
  39         unsigned dev_addr = CONFIG_SYS_I2C_EEPROM_ADDR | \
  40                 (which ? HYMOD_EEOFF_MEZZ : HYMOD_EEOFF_MAIN);
  41         unsigned offset = 0;
  42         uchar data[HYMOD_EEPROM_MAXLEN], *dp, *edp;
  43         hymod_eehdr_t hdr;
  44         ulong len, crc;
  45
  46         memset (ep, 0, sizeof *ep);
  47
  48         eeprom_read (dev_addr, offset, (uchar *)&hdr, sizeof (hdr));
  49         offset += sizeof (hdr);
  50
  51         if (hdr.id != HYMOD_EEPROM_ID || hdr.ver > HYMOD_EEPROM_VER ||
  52           (len = hdr.len) > HYMOD_EEPROM_MAXLEN)
  53             return (0);
  54
  55         eeprom_read (dev_addr, offset, data, len);
  56         offset += len;
  57
  58         eeprom_read (dev_addr, offset, (uchar *)&crc, sizeof (ulong));
  59         offset += sizeof (ulong);
  60
  61         if (crc32 (crc32 (0, (uchar *)&hdr, sizeof hdr), data, len) != crc)
  62                 return (0);
  63
  64         ep->ver = hdr.ver;
  65         dp = data; edp = dp + len;
  66
  67         for (;;) {
  68                 ulong rtyp;
  69                 uchar rlen, *rdat;
  70
  71                 rtyp = *dp++;
  72                 if ((rtyp & 0x80) == 0)
  73                         rlen = *dp++;
  74                 else {
  75                         uchar islarge = rtyp & 0x40;
  76
  77                         rtyp = ((rtyp & 0x3f) << 8) | *dp++;
  78                         if (islarge) {
  79                                 rtyp = (rtyp << 8) | *dp++;
  80                                 rtyp = (rtyp << 8) | *dp++;
  81                         }
  82
  83                         rlen = *dp++;
  84                         rlen = (rlen << 8) | *dp++;
  85                         if (islarge) {
  86                                 rlen = (rlen << 8) | *dp++;
  87                                 rlen = (rlen << 8) | *dp++;
  88                         }
  89                 }
  90
  91                 if (rtyp == 0)
  92                         break;
  93
  94                 rdat = dp;
  95                 dp += rlen;
  96
  97                 if (dp > edp)   /* error? */
  98                         break;
  99
 100                 switch (rtyp) {
 101
 102                 case HYMOD_EEREC_SERNO:         /* serial number */
 103                         if (rlen == sizeof (ulong))
 104                                 ep->serno = \
 105                                         ((ulong)rdat[0] << 24) | \
 106                                         ((ulong)rdat[1] << 16) | \
 107                                         ((ulong)rdat[2] << 8) | \
 108                                         (ulong)rdat[3];
 109                         break;
 110
 111                 case HYMOD_EEREC_DATE:          /* date */
 112                         if (rlen == sizeof (hymod_date_t)) {
 113                                 ep->date.year = ((ushort)rdat[0] << 8) | \
 114                                         (ushort)rdat[1];
 115                                 ep->date.month = rdat[2];
 116                                 ep->date.day = rdat[3];
 117                         }
 118                         break;
 119
 120                 case HYMOD_EEREC_BATCH:         /* batch */
 121                         if (rlen <= HYMOD_MAX_BATCH)
 122                                 memcpy (ep->batch, rdat, ep->batchlen = rlen);
 123                         break;
 124
 125                 case HYMOD_EEREC_TYPE:          /* board type */
 126                         if (rlen == 1)
 127                                 ep->bdtype = *rdat;
 128                         break;
 129
 130                 case HYMOD_EEREC_REV:           /* board revision */
 131                         if (rlen == 1)
 132                                 ep->bdrev = *rdat;
 133                         break;
 134
 135                 case HYMOD_EEREC_SDRAM:         /* sdram size(s) */
 136                         if (rlen > 0 && rlen <= HYMOD_MAX_SDRAM) {
 137                                 int i;
 138
 139                                 for (i = 0; i < rlen; i++)
 140                                         ep->sdramsz[i] = rdat[i];
 141                                 ep->nsdram = rlen;
 142                         }
 143                         break;
 144
 145                 case HYMOD_EEREC_FLASH:         /* flash size(s) */
 146                         if (rlen > 0 && rlen <= HYMOD_MAX_FLASH) {
 147                                 int i;
 148
 149                                 for (i = 0; i < rlen; i++)
 150                                         ep->flashsz[i] = rdat[i];
 151                                 ep->nflash = rlen;
 152                         }
 153                         break;
 154
 155                 case HYMOD_EEREC_ZBT:           /* zbt ram size(s) */
 156                         if (rlen > 0 && rlen <= HYMOD_MAX_ZBT) {
 157                                 int i;
 158
 159                                 for (i = 0; i < rlen; i++)
 160                                         ep->zbtsz[i] = rdat[i];
 161                                 ep->nzbt = rlen;
 162                         }
 163                         break;
 164
 165                 case HYMOD_EEREC_XLXTYP:        /* xilinx fpga type(s) */
 166                         if (rlen > 0 && rlen <= HYMOD_MAX_XLX) {
 167                                 int i;
 168
 169                                 for (i = 0; i < rlen; i++)
 170                                         ep->xlx[i].type = rdat[i];
 171                                 ep->nxlx = rlen;
 172                         }
 173                         break;
 174
 175                 case HYMOD_EEREC_XLXSPD:        /* xilinx fpga speed(s) */
 176                         if (rlen > 0 && rlen <= HYMOD_MAX_XLX) {
 177                                 int i;
 178
 179                                 for (i = 0; i < rlen; i++)
 180                                         ep->xlx[i].speed = rdat[i];
 181                         }
 182                         break;
 183
 184                 case HYMOD_EEREC_XLXTMP:        /* xilinx fpga temperature(s) */
 185                         if (rlen > 0 && rlen <= HYMOD_MAX_XLX) {
 186                                 int i;
 187
 188                                 for (i = 0; i < rlen; i++)
 189                                         ep->xlx[i].temp = rdat[i];
 190                         }
 191                         break;
 192
 193                 case HYMOD_EEREC_XLXGRD:        /* xilinx fpga grade(s) */
 194                         if (rlen > 0 && rlen <= HYMOD_MAX_XLX) {
 195                                 int i;
 196
 197                                 for (i = 0; i < rlen; i++)
 198                                         ep->xlx[i].grade = rdat[i];
 199                         }
 200                         break;
 201
 202                 case HYMOD_EEREC_CPUTYP:        /* CPU type */
 203                         if (rlen == 1)
 204                                 ep->mpc.type = *rdat;
 205                         break;
 206
 207                 case HYMOD_EEREC_CPUSPD:        /* CPU speed */
 208                         if (rlen == 1)
 209                                 ep->mpc.cpuspd = *rdat;
 210                         break;
 211
 212                 case HYMOD_EEREC_CPMSPD:        /* CPM speed */
 213                         if (rlen == 1)
 214                                 ep->mpc.cpmspd = *rdat;
 215                         break;
 216
 217                 case HYMOD_EEREC_BUSSPD:        /* bus speed */
 218                         if (rlen == 1)
 219                                 ep->mpc.busspd = *rdat;
 220                         break;
 221
 222                 case HYMOD_EEREC_HSTYPE:        /* hs-serial chip type */
 223                         if (rlen == 1)
 224                                 ep->hss.type = *rdat;
 225                         break;
 226
 227                 case HYMOD_EEREC_HSCHIN:        /* num hs-serial input chans */
 228                         if (rlen == 1)
 229                                 ep->hss.nchin = *rdat;
 230                         break;
 231
 232                 case HYMOD_EEREC_HSCHOUT:       /* num hs-serial output chans */
 233                         if (rlen == 1)
 234                                 ep->hss.nchout = *rdat;
 235                         break;
 236
 237                 default:        /* ignore */
 238                         break;
 239                 }
 240         }
 241
 242         return (1);
 243 }
 244
 245 /* maps an ascii "name=value" into a binary eeprom data record */
 246 typedef
 247         struct _eerec_map {
 248                 char *name;
 249                 uint type;
 250                 uchar *(*handler) \
 251                         (struct _eerec_map *, uchar *, uchar *, uchar *);
 252                 uint length;
 253                 uint maxlen;
 254         }
 255 eerec_map_t;
 256
 257 static uchar *
 258 uint_handler (eerec_map_t *rp, uchar *val, uchar *dp, uchar *edp)
 259 {
 260         char *eval;
 261         ulong lval;
 262
 263         lval = simple_strtol ((char *)val, &eval, 10);
 264
 265         if ((uchar *)eval == val || *eval != '\0') {
 266                 printf ("%s rec (%s) is not a valid uint\n", rp->name, val);
 267                 return (NULL);
 268         }
 269
 270         if (dp + 2 + rp->length > edp) {
 271                 printf ("can't fit %s rec into eeprom\n", rp->name);
 272                 return (NULL);
 273         }
 274
 275         *dp++ = rp->type;
 276         *dp++ = rp->length;
 277
 278         switch (rp->length) {
 279
 280         case 1:
 281                 if (lval >= 256) {
 282                         printf ("%s rec value (%lu) out of range (0-255)\n",
 283                                 rp->name, lval);
 284                         return (NULL);
 285                 }
 286                 *dp++ = lval;
 287                 break;
 288
 289         case 2:
 290                 if (lval >= 65536) {
 291                         printf ("%s rec value (%lu) out of range (0-65535)\n",
 292                                 rp->name, lval);
 293                         return (NULL);
 294                 }
 295                 *dp++ = lval >> 8;
 296                 *dp++ = lval;
 297                 break;
 298
 299         case 4:
 300                 *dp++ = lval >> 24;
 301                 *dp++ = lval >> 16;
 302                 *dp++ = lval >> 8;
 303                 *dp++ = lval;
 304                 break;
 305
 306         default:
 307                 printf ("huh? rp->length not 1, 2 or 4! (%d)\n", rp->length);
 308                 return (NULL);
 309         }
 310
 311         return (dp);
 312 }
 313
 314 static uchar *
 315 date_handler (eerec_map_t *rp, uchar *val, uchar *dp, uchar *edp)
 316 {
 317         hymod_date_t date;
 318         char *p = (char *)val;
 319         char *ep;
 320         ulong lval;
 321
 322         lval = simple_strtol (p, &ep, 10);
 323         if (ep == p || *ep++ != '-') {
 324 bad_date:
 325                 printf ("%s rec (%s) is not a valid date\n", rp->name, val);
 326                 return (NULL);
 327         }
 328         if (lval >= 65536)
 329                 goto bad_date;
 330         date.year = lval;
 331
 332         lval = simple_strtol (p = ep, &ep, 10);
 333         if (ep == p || *ep++ != '-' || lval == 0 || lval > 12)
 334                 goto bad_date;
 335         date.month = lval;
 336
 337         lval = simple_strtol (p = ep, &ep, 10);
 338         if (ep == p || *ep != '\0' || lval == 0 || lval > 31)
 339                 goto bad_date;
 340         date.day = lval;
 341
 342         if (dp + 2 + rp->length > edp) {
 343                 printf ("can't fit %s rec into eeprom\n", rp->name);
 344                 return (NULL);
 345         }
 346
 347         *dp++ = rp->type;
 348         *dp++ = rp->length;
 349         *dp++ = date.year >> 8;
 350         *dp++ = date.year;
 351         *dp++ = date.month;
 352         *dp++ = date.day;
 353
 354         return (dp);
 355 }
 356
 357 static uchar *
 358 string_handler (eerec_map_t *rp, uchar *val, uchar *dp, uchar *edp)
 359 {
 360         uint len;
 361
 362         if ((len = strlen ((char *)val)) > rp->maxlen) {
 363                 printf ("%s rec (%s) string is too long (%d>%d)\n",
 364                         rp->name, val, len, rp->maxlen);
 365                 return (NULL);
 366         }
 367
 368         if (dp + 2 + len > edp) {
 369                 printf ("can't fit %s rec into eeprom\n", rp->name);
 370                 return (NULL);
 371         }
 372
 373         *dp++ = rp->type;
 374         *dp++ = len;
 375         memcpy (dp, val, len);
 376         dp += len;
 377
 378         return (dp);
 379 }
 380
 381 static uchar *
 382 bytes_handler (eerec_map_t *rp, uchar *val, uchar *dp, uchar *edp)
 383 {
 384         uchar bytes[HYMOD_MAX_BYTES], nbytes, *p;
 385         char *ep;
 386
 387         for (nbytes = 0, p = val; *p != '\0'; p = (uchar *)ep) {
 388                 ulong lval;
 389
 390                 lval = simple_strtol ((char *)p, &ep, 10);
 391                 if ((uchar *)ep == p || (*ep != '\0' && *ep != ',') || \
 392                     lval >= 256) {
 393                         printf ("%s rec (%s) byte array has invalid uint\n",
 394                                 rp->name, val);
 395                         return (NULL);
 396                 }
 397                 if (nbytes >= HYMOD_MAX_BYTES) {
 398                         printf ("%s rec (%s) byte array too long\n",
 399                                 rp->name, val);
 400                         return (NULL);
 401                 }
 402                 bytes[nbytes++] = lval;
 403
 404                 if (*ep != '\0')
 405                         ep++;
 406         }
 407
 408         if (dp + 2 + nbytes > edp) {
 409                 printf ("can't fit %s rec into eeprom\n", rp->name);
 410                 return (NULL);
 411         }
 412
 413         *dp++ = rp->type;
 414         *dp++ = nbytes;
 415         memcpy (dp, bytes, nbytes);
 416         dp += nbytes;
 417
 418         return (dp);
 419 }
 420
 421 static eerec_map_t eerec_map[] = {
 422         /* name      type                 handler         len max             */
 423         { "serno",   HYMOD_EEREC_SERNO,   uint_handler,   4,  0               },
 424         { "date",    HYMOD_EEREC_DATE,    date_handler,   4,  0               },
 425         { "batch",   HYMOD_EEREC_BATCH,   string_handler, 0,  HYMOD_MAX_BATCH },
 426         { "type",    HYMOD_EEREC_TYPE,    uint_handler,   1,  0               },
 427         { "rev",     HYMOD_EEREC_REV,     uint_handler,   1,  0               },
 428         { "sdram",   HYMOD_EEREC_SDRAM,   bytes_handler,  0,  HYMOD_MAX_SDRAM },
 429         { "flash",   HYMOD_EEREC_FLASH,   bytes_handler,  0,  HYMOD_MAX_FLASH },
 430         { "zbt",     HYMOD_EEREC_ZBT,     bytes_handler,  0,  HYMOD_MAX_ZBT   },
 431         { "xlxtyp",  HYMOD_EEREC_XLXTYP,  bytes_handler,  0,  HYMOD_MAX_XLX   },
 432         { "xlxspd",  HYMOD_EEREC_XLXSPD,  bytes_handler,  0,  HYMOD_MAX_XLX   },
 433         { "xlxtmp",  HYMOD_EEREC_XLXTMP,  bytes_handler,  0,  HYMOD_MAX_XLX   },
 434         { "xlxgrd",  HYMOD_EEREC_XLXGRD,  bytes_handler,  0,  HYMOD_MAX_XLX   },
 435         { "cputyp",  HYMOD_EEREC_CPUTYP,  uint_handler,   1,  0               },
 436         { "cpuspd",  HYMOD_EEREC_CPUSPD,  uint_handler,   1,  0               },
 437         { "cpmspd",  HYMOD_EEREC_CPMSPD,  uint_handler,   1,  0               },
 438         { "busspd",  HYMOD_EEREC_BUSSPD,  uint_handler,   1,  0               },
 439         { "hstype",  HYMOD_EEREC_HSTYPE,  uint_handler,   1,  0               },
 440         { "hschin",  HYMOD_EEREC_HSCHIN,  uint_handler,   1,  0               },
 441         { "hschout", HYMOD_EEREC_HSCHOUT, uint_handler,   1,  0               },
 442 };
 443
 444 static int neerecs = sizeof eerec_map / sizeof eerec_map[0];
 445
 446 static uchar data[HYMOD_EEPROM_SIZE], *sdp, *dp, *edp;
 447
 448 static int
 449 eerec_callback (uchar *name, uchar *val)
 450 {
 451         eerec_map_t *rp;
 452
 453         for (rp = eerec_map; rp < &eerec_map[neerecs]; rp++)
 454                 if (strcmp ((char *)name, rp->name) == 0)
 455                         break;
 456
 457         if (rp >= &eerec_map[neerecs])
 458                 return (0);
 459
 460         if ((dp = (*rp->handler) (rp, val, dp, edp)) == NULL)
 461                 return (0);
 462
 463         return (1);
 464 }
 465
 466 static int
 467 hymod_eeprom_fetch(int which, char *filename, ulong addr)
 468 {
 469         unsigned dev_addr = CONFIG_SYS_I2C_EEPROM_ADDR | \
 470                 (which ? HYMOD_EEOFF_MEZZ : HYMOD_EEOFF_MAIN);
 471         hymod_eehdr_t *hp = (hymod_eehdr_t *)&data[0];
 472         ulong crc;
 473
 474         memset (hp, 0, sizeof *hp);
 475         hp->id = HYMOD_EEPROM_ID;
 476         hp->ver = HYMOD_EEPROM_VER;
 477
 478         dp = sdp = (uchar *)(hp + 1);
 479         edp = dp + HYMOD_EEPROM_MAXLEN;
 480
 481         if (fetch_and_parse (filename, addr, eerec_callback) == 0)
 482                 return (0);
 483
 484         hp->len = dp - sdp;
 485
 486         crc = crc32 (0, data, dp - data);
 487         memcpy (dp, &crc, sizeof (ulong));
 488         dp += sizeof (ulong);
 489
 490         eeprom_write (dev_addr, 0, data, dp - data);
 491
 492         return (1);
 493 }
 494
 495 static char *type_vals[] = {
 496         "NONE", "IO", "CLP", "DSP", "INPUT", "ALT-INPUT", "DISPLAY"
 497 };
 498
 499 static char *xlxtyp_vals[] = {
 500         "NONE", "XCV300E", "XCV400E", "XCV600E"
 501 };
 502
 503 static char *xlxspd_vals[] = {
 504         "NONE", "6", "7", "8"
 505 };
 506
 507 static char *xlxtmp_vals[] = {
 508         "NONE", "COM", "IND"
 509 };
 510
 511 static char *xlxgrd_vals[] = {
 512         "NONE", "NORMAL", "ENGSAMP"
 513 };
 514
 515 static char *cputyp_vals[] = {
 516         "NONE", "MPC8260"
 517 };
 518
 519 static char *clk_vals[] = {
 520         "NONE", "33", "66", "100", "133", "166", "200"
 521 };
 522
 523 static char *hstype_vals[] = {
 524         "NONE", "AMCC-S2064A"
 525 };
 526
 527 static void
 528 print_mem (char *l, char *s, uchar n, uchar a[])
 529 {
 530         if (n > 0) {
 531                 if (n == 1)
 532                         printf ("%s%dMB %s", s, 1 << (a[0] - 20), l);
 533                 else {
 534                         ulong t = 0;
 535                         int i;
 536
 537                         for (i = 0; i < n; i++)
 538                                 t += 1 << (a[i] - 20);
 539
 540                         printf ("%s%luMB %s (%d banks:", s, t, l, n);
 541
 542                         for (i = 0; i < n; i++)
 543                                 printf ("%dMB%s",
 544                                         1 << (a[i] - 20),
 545                                         (i == n - 1) ? ")" : ",");
 546                 }
 547         }
 548         else
 549                 printf ("%sNO %s", s, l);
 550 }
 551
 552 void
 553 hymod_eeprom_print (hymod_eeprom_t *ep)
 554 {
 555         int i;
 556
 557         printf ("         Hymod %s board, rev %03d\n",
 558                 type_vals[ep->bdtype], ep->bdrev);
 559
 560         printf ("         serial #: %010lu, date %04d-%02d-%02d",
 561                 ep->serno, ep->date.year, ep->date.month, ep->date.day);
 562         if (ep->batchlen > 0)
 563                 printf (", batch \"%.*s\"", ep->batchlen, ep->batch);
 564         puts ("\n");
 565
 566         switch (ep->bdtype) {
 567
 568         case HYMOD_BDTYPE_IO:
 569         case HYMOD_BDTYPE_CLP:
 570         case HYMOD_BDTYPE_DSP:
 571                 printf ("         Motorola %s CPU, speeds: %s/%s/%s",
 572                     cputyp_vals[ep->mpc.type], clk_vals[ep->mpc.cpuspd],
 573                     clk_vals[ep->mpc.cpmspd], clk_vals[ep->mpc.busspd]);
 574
 575                 print_mem ("SDRAM", ", ", ep->nsdram, ep->sdramsz);
 576
 577                 print_mem ("FLASH", ", ", ep->nflash, ep->flashsz);
 578
 579                 puts ("\n");
 580
 581                 print_mem ("ZBT", "         ", ep->nzbt, ep->zbtsz);
 582
 583                 if (ep->nxlx > 0) {
 584                         hymod_xlx_t *xp;
 585
 586                         if (ep->nxlx == 1) {
 587                                 xp = &ep->xlx[0];
 588                                 printf (", Xilinx %s FPGA (%s/%s/%s)",
 589                                         xlxtyp_vals[xp->type],
 590                                         xlxspd_vals[xp->speed],
 591                                         xlxtmp_vals[xp->temp],
 592                                         xlxgrd_vals[xp->grade]);
 593                         }
 594                         else {
 595                                 printf (", %d Xilinx FPGAs (", ep->nxlx);
 596                                 for (i = 0; i < ep->nxlx; i++) {
 597                                         xp = &ep->xlx[i];
 598                                         printf ("%s[%s/%s/%s]%s",
 599                                             xlxtyp_vals[xp->type],
 600                                             xlxspd_vals[xp->speed],
 601                                             xlxtmp_vals[xp->temp],
 602                                             xlxgrd_vals[xp->grade],
 603                                             (i == ep->nxlx - 1) ? ")" : ", ");
 604                                 }
 605                         }
 606                 }
 607                 else
 608                         puts(", NO FPGAs");
 609
 610                 puts ("\n");
 611
 612                 if (ep->hss.type > 0)
 613                         printf ("         High Speed Serial: "
 614                                 "%s, %d input%s, %d output%s\n",
 615                                 hstype_vals[ep->hss.type],
 616                                 ep->hss.nchin,
 617                                 (ep->hss.nchin == 1 ? "" : "s"),
 618                                 ep->hss.nchout,
 619                                 (ep->hss.nchout == 1 ? "" : "s"));
 620                 break;
 621
 622         case HYMOD_BDTYPE_INPUT:
 623         case HYMOD_BDTYPE_ALTINPUT:
 624         case HYMOD_BDTYPE_DISPLAY:
 625                 break;
 626
 627         default:
 628                 /* crap! */
 629                 printf ("         UNKNOWN BOARD TYPE: %d\n", ep->bdtype);
 630                 break;
 631         }
 632 }
 633
 634 int
 635 hymod_eeprom_read (int which, hymod_eeprom_t *ep)
 636 {
 637         char *label = which ? "mezzanine" : "main";
 638         unsigned dev_addr = CONFIG_SYS_I2C_EEPROM_ADDR | \
 639                 (which ? HYMOD_EEOFF_MEZZ : HYMOD_EEOFF_MAIN);
 640         char filename[50], prompt[50], *dir;
 641         int serno, count = 0, rc;
 642
 643         rc = eeprom_probe (dev_addr, 0);
 644
 645         if (rc > 0) {
 646                 printf ("*** probe for eeprom failed with code %d\n", rc);
 647                 return (0);
 648         }
 649
 650         if (rc < 0)
 651                 return (rc);
 652
 653         sprintf (prompt, "Enter %s board serial number: ", label);
 654
 655         if ((dir = getenv ("bddb_cfgdir")) == NULL)
 656                 dir = def_bddb_cfgdir;
 657
 658         for (;;) {
 659                 int rc;
 660
 661                 if (hymod_eeprom_load (which, ep))
 662                         return (1);
 663
 664                 printf ("*** %s board EEPROM contents are %sinvalid\n",
 665                         label, count == 0 ? "" : "STILL ");
 666
 667                 puts ("*** will fetch from server (Ctrl-C to abort)\n");
 668
 669                 serno = hymod_get_serno (prompt);
 670
 671                 if (serno < 0) {
 672                         if (serno == -1)
 673                                 puts ("\n*** interrupted!");
 674                         else
 675                                 puts ("\n*** timeout!");
 676                         puts (" - ignoring eeprom contents\n");
 677                         return (0);
 678                 }
 679
 680                 sprintf (filename, "%s/%010d.cfg", dir, serno);
 681
 682                 printf ("*** fetching %s board EEPROM contents from server\n",
 683                         label);
 684
 685                 rc = hymod_eeprom_fetch (which, filename, CONFIG_SYS_LOAD_ADDR);
 686
 687                 if (rc == 0) {
 688                         puts ("*** fetch failed - ignoring eeprom contents\n");
 689                         return (0);
 690                 }
 691
 692                 count++;
 693         }
 694 }