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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008 by Spencer Oliver                                  *
   9  *   spen@spen-soft.co.uk                                                  *
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  *   This program is distributed in the hope that it will be useful,       *
  17  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  18  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  19  *   GNU General Public License for more details.                          *
  20  *                                                                         *
  21  *   You should have received a copy of the GNU General Public License     *
  22  *   along with this program; if not, write to the                         *
  23  *   Free Software Foundation, Inc.,                                       *
  24  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  25  ***************************************************************************/
  26 #ifdef HAVE_CONFIG_H
  27 #include "config.h"
  28 #endif
  29
  30 #include "flash.h"
  31 #include "image.h"
  32 #include "time_support.h"
  33
  34 static int flash_write_unlock(target_t *target, image_t *image, uint32_t *written, int erase, bool unlock);
  35
  36 /* flash drivers
  37  */
  38 extern flash_driver_t lpc2000_flash;
  39 extern flash_driver_t lpc288x_flash;
  40 extern flash_driver_t lpc2900_flash;
  41 extern flash_driver_t cfi_flash;
  42 extern flash_driver_t at91sam3_flash;
  43 extern flash_driver_t at91sam7_flash;
  44 extern flash_driver_t str7x_flash;
  45 extern flash_driver_t str9x_flash;
  46 extern flash_driver_t aduc702x_flash;
  47 extern flash_driver_t stellaris_flash;
  48 extern flash_driver_t str9xpec_flash;
  49 extern flash_driver_t stm32x_flash;
  50 extern flash_driver_t tms470_flash;
  51 extern flash_driver_t ecosflash_flash;
  52 extern flash_driver_t ocl_flash;
  53 extern flash_driver_t pic32mx_flash;
  54 extern flash_driver_t avr_flash;
  55 extern flash_driver_t faux_flash;
  56
  57 flash_driver_t *flash_drivers[] = {
  58         &lpc2000_flash,
  59         &lpc288x_flash,
  60         &lpc2900_flash,
  61         &cfi_flash,
  62         &at91sam7_flash,
  63         &at91sam3_flash,
  64         &str7x_flash,
  65         &str9x_flash,
  66         &aduc702x_flash,
  67         &stellaris_flash,
  68         &str9xpec_flash,
  69         &stm32x_flash,
  70         &tms470_flash,
  71         &ecosflash_flash,
  72         &ocl_flash,
  73         &pic32mx_flash,
  74         &avr_flash,
  75         &faux_flash,
  76         NULL,
  77 };
  78
  79 flash_bank_t *flash_banks;
  80 static  command_t *flash_cmd;
  81
  82 /* wafer thin wrapper for invoking the flash driver */
  83 static int flash_driver_write(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
  84 {
  85         int retval;
  86
  87         retval = bank->driver->write(bank, buffer, offset, count);
  88         if (retval != ERROR_OK)
  89         {
  90                 LOG_ERROR("error writing to flash at address 0x%08" PRIx32 " at offset 0x%8.8" PRIx32 " (%d)",
  91                           bank->base, offset, retval);
  92         }
  93
  94         return retval;
  95 }
  96
  97 static int flash_driver_erase(struct flash_bank_s *bank, int first, int last)
  98 {
  99         int retval;
 100
 101         retval = bank->driver->erase(bank, first, last);
 102         if (retval != ERROR_OK)
 103         {
 104                 LOG_ERROR("failed erasing sectors %d to %d (%d)", first, last, retval);
 105         }
 106
 107         return retval;
 108 }
 109
 110 int flash_driver_protect(struct flash_bank_s *bank, int set, int first, int last)
 111 {
 112         int retval;
 113
 114         retval = bank->driver->protect(bank, set, first, last);
 115         if (retval != ERROR_OK)
 116         {
 117                 LOG_ERROR("failed setting protection for areas %d to %d (%d)", first, last, retval);
 118         }
 119
 120         return retval;
 121 }
 122
 123 static int jim_flash_banks(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 124 {
 125         flash_bank_t *p;
 126
 127         if (argc != 1) {
 128                 Jim_WrongNumArgs(interp, 1, argv, "no arguments to flash_banks command");
 129                 return JIM_ERR;
 130         }
 131
 132         Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
 133         for (p = flash_banks; p; p = p->next)
 134         {
 135                 Jim_Obj *elem = Jim_NewListObj(interp, NULL, 0);
 136
 137                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "name", -1));
 138                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, p->driver->name, -1));
 139                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "base", -1));
 140                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->base));
 141                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "size", -1));
 142                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->size));
 143                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "bus_width", -1));
 144                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->bus_width));
 145                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "chip_width", -1));
 146                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->chip_width));
 147
 148                 Jim_ListAppendElement(interp, list, elem);
 149         }
 150
 151         Jim_SetResult(interp, list);
 152
 153         return JIM_OK;
 154 }
 155
 156 flash_bank_t *get_flash_bank_by_num_noprobe(int num)
 157 {
 158         flash_bank_t *p;
 159         int i = 0;
 160
 161         for (p = flash_banks; p; p = p->next)
 162         {
 163                 if (i++ == num)
 164                 {
 165                         return p;
 166                 }
 167         }
 168         LOG_ERROR("flash bank %d does not exist", num);
 169         return NULL;
 170 }
 171
 172 int flash_get_bank_count(void)
 173 {
 174         flash_bank_t *p;
 175         int i = 0;
 176         for (p = flash_banks; p; p = p->next)
 177         {
 178                 i++;
 179         }
 180         return i;
 181 }
 182
 183 flash_bank_t *get_flash_bank_by_num(int num)
 184 {
 185         flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
 186         int retval;
 187
 188         if (p == NULL)
 189                 return NULL;
 190
 191         retval = p->driver->auto_probe(p);
 192
 193         if (retval != ERROR_OK)
 194         {
 195                 LOG_ERROR("auto_probe failed %d\n", retval);
 196                 return NULL;
 197         }
 198         return p;
 199 }
 200
 201 int flash_command_get_bank_by_num(
 202         struct command_context_s *cmd_ctx, const char *str, flash_bank_t **bank)
 203 {
 204         unsigned bank_num;
 205         COMMAND_PARSE_NUMBER(uint, str, bank_num);
 206
 207         *bank = get_flash_bank_by_num(bank_num);
 208         if (!*bank)
 209         {
 210                 command_print(cmd_ctx,
 211                         "flash bank '#%u' not found", bank_num);
 212                 return ERROR_INVALID_ARGUMENTS;
 213         }
 214         return ERROR_OK;
 215 }
 216
 217
 218 static int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 219 {
 220         int retval;
 221         int i;
 222         int found = 0;
 223         target_t *target;
 224
 225         if (argc < 6)
 226         {
 227                 return ERROR_COMMAND_SYNTAX_ERROR;
 228         }
 229
 230         if ((target = get_target(args[5])) == NULL)
 231         {
 232                 LOG_ERROR("target '%s' not defined", args[5]);
 233                 return ERROR_FAIL;
 234         }
 235
 236         for (i = 0; flash_drivers[i]; i++)
 237         {
 238                 if (strcmp(args[0], flash_drivers[i]->name) != 0)
 239                         continue;
 240
 241                 flash_bank_t *p, *c;
 242
 243                 /* register flash specific commands */
 244                 if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 245                 {
 246                         LOG_ERROR("couldn't register '%s' commands", args[0]);
 247                         return ERROR_FAIL;
 248                 }
 249
 250                 c = malloc(sizeof(flash_bank_t));
 251                 c->target = target;
 252                 c->driver = flash_drivers[i];
 253                 c->driver_priv = NULL;
 254                 COMMAND_PARSE_NUMBER(u32, args[1], c->base);
 255                 COMMAND_PARSE_NUMBER(u32, args[2], c->size);
 256                 COMMAND_PARSE_NUMBER(int, args[3], c->chip_width);
 257                 COMMAND_PARSE_NUMBER(int, args[4], c->bus_width);
 258                 c->num_sectors = 0;
 259                 c->sectors = NULL;
 260                 c->next = NULL;
 261
 262                 if ((retval = flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c)) != ERROR_OK)
 263                 {
 264                         LOG_ERROR("'%s' driver rejected flash bank at 0x%8.8" PRIx32 , args[0], c->base);
 265                         free(c);
 266                         return retval;
 267                 }
 268
 269                 /* put flash bank in linked list */
 270                 if (flash_banks)
 271                 {
 272                         int     bank_num = 0;
 273                         /* find last flash bank */
 274                         for (p = flash_banks; p && p->next; p = p->next) bank_num++;
 275                         if (p)
 276                                 p->next = c;
 277                         c->bank_number = bank_num + 1;
 278                 }
 279                 else
 280                 {
 281                         flash_banks = c;
 282                         c->bank_number = 0;
 283                 }
 284
 285                 found = 1;
 286         }
 287
 288         /* no matching flash driver found */
 289         if (!found)
 290         {
 291                 LOG_ERROR("flash driver '%s' not found", args[0]);
 292                 return ERROR_FAIL;
 293         }
 294
 295         return ERROR_OK;
 296 }
 297
 298 static int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 299 {
 300         flash_bank_t *p;
 301         uint32_t i = 0;
 302         int j = 0;
 303         int retval;
 304
 305         if (argc != 1)
 306                 return ERROR_COMMAND_SYNTAX_ERROR;
 307
 308         unsigned bank_nr;
 309         COMMAND_PARSE_NUMBER(uint, args[0], bank_nr);
 310
 311         for (p = flash_banks; p; p = p->next, i++)
 312         {
 313                 if (i != bank_nr)
 314                         continue;
 315
 316                 char buf[1024];
 317
 318                 /* attempt auto probe */
 319                 if ((retval = p->driver->auto_probe(p)) != ERROR_OK)
 320                         return retval;
 321
 322                 command_print(cmd_ctx,
 323                               "#%" PRIi32 " : %s at 0x%8.8" PRIx32 ", size 0x%8.8" PRIx32 ", buswidth %i, chipwidth %i",
 324                               i,
 325                               p->driver->name,
 326                               p->base,
 327                               p->size,
 328                               p->bus_width,
 329                               p->chip_width);
 330                 for (j = 0; j < p->num_sectors; j++)
 331                 {
 332                         char *protect_state;
 333
 334                         if (p->sectors[j].is_protected == 0)
 335                                 protect_state = "not protected";
 336                         else if (p->sectors[j].is_protected == 1)
 337                                 protect_state = "protected";
 338                         else
 339                                 protect_state = "protection state unknown";
 340
 341                         command_print(cmd_ctx,
 342                                       "\t#%3i: 0x%8.8" PRIx32 " (0x%" PRIx32 " %" PRIi32 "kB) %s",
 343                                       j,
 344                                       p->sectors[j].offset,
 345                                       p->sectors[j].size,
 346                                       p->sectors[j].size >> 10,
 347                                       protect_state);
 348                 }
 349
 350                 *buf = '\0'; /* initialize buffer, otherwise it migh contain garbage if driver function fails */
 351                 retval = p->driver->info(p, buf, sizeof(buf));
 352                 command_print(cmd_ctx, "%s", buf);
 353                 if (retval != ERROR_OK)
 354                         LOG_ERROR("error retrieving flash info (%d)", retval);
 355         }
 356
 357         return ERROR_OK;
 358 }
 359
 360 static int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 361 {
 362         int retval;
 363
 364         if (argc != 1)
 365         {
 366                 return ERROR_COMMAND_SYNTAX_ERROR;
 367         }
 368
 369         unsigned bank_nr;
 370         COMMAND_PARSE_NUMBER(uint, args[0], bank_nr);
 371         flash_bank_t *p = get_flash_bank_by_num_noprobe(bank_nr);
 372         if (p)
 373         {
 374                 if ((retval = p->driver->probe(p)) == ERROR_OK)
 375                 {
 376                         command_print(cmd_ctx, "flash '%s' found at 0x%8.8" PRIx32, p->driver->name, p->base);
 377                 }
 378                 else if (retval == ERROR_FLASH_BANK_INVALID)
 379                 {
 380                         command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8" PRIx32,
 381                                                   args[0], p->base);
 382                 }
 383                 else
 384                 {
 385                         command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8" PRIx32,
 386                                                   args[0], p->base);
 387                 }
 388         }
 389         else
 390         {
 391                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 392         }
 393
 394         return ERROR_OK;
 395 }
 396
 397 static int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 398 {
 399         if (argc != 1)
 400         {
 401                 return ERROR_COMMAND_SYNTAX_ERROR;
 402         }
 403
 404         flash_bank_t *p;
 405         int retval = flash_command_get_bank_by_num(cmd_ctx, args[0], &p);
 406         if (ERROR_OK != retval)
 407                 return retval;
 408
 409         int j;
 410         if ((retval = p->driver->erase_check(p)) == ERROR_OK)
 411         {
 412                 command_print(cmd_ctx, "successfully checked erase state");
 413         }
 414         else
 415         {
 416                 command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8" PRIx32,
 417                         args[0], p->base);
 418         }
 419
 420         for (j = 0; j < p->num_sectors; j++)
 421         {
 422                 char *erase_state;
 423
 424                 if (p->sectors[j].is_erased == 0)
 425                         erase_state = "not erased";
 426                 else if (p->sectors[j].is_erased == 1)
 427                         erase_state = "erased";
 428                 else
 429                         erase_state = "erase state unknown";
 430
 431                 command_print(cmd_ctx,
 432                               "\t#%3i: 0x%8.8" PRIx32 " (0x%" PRIx32 " %" PRIi32 "kB) %s",
 433                               j,
 434                               p->sectors[j].offset,
 435                               p->sectors[j].size,
 436                               p->sectors[j].size >> 10,
 437                               erase_state);
 438         }
 439
 440         return ERROR_OK;
 441 }
 442
 443 static int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 444 {
 445         flash_bank_t *p;
 446         int retval;
 447         int address;
 448         int length;
 449
 450         target_t *target = get_current_target(cmd_ctx);
 451
 452         if (argc != 2)
 453                 return ERROR_COMMAND_SYNTAX_ERROR;
 454
 455         COMMAND_PARSE_NUMBER(int, args[0], address);
 456         COMMAND_PARSE_NUMBER(int, args[1], length);
 457         if (length <= 0)
 458         {
 459                 command_print(cmd_ctx, "Length must be >0");
 460                 return ERROR_COMMAND_SYNTAX_ERROR;
 461         }
 462
 463         p = get_flash_bank_by_addr(target, address);
 464         if (p == NULL)
 465         {
 466                 return ERROR_FAIL;
 467         }
 468
 469         /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
 470         flash_set_dirty();
 471
 472         struct duration bench;
 473         duration_start(&bench);
 474
 475         retval = flash_erase_address_range(target, address, length);
 476
 477         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
 478         {
 479                 command_print(cmd_ctx, "erased address 0x%8.8x (length %i)"
 480                                 " in %fs (%0.3f kb/s)", address, length,
 481                                 duration_elapsed(&bench), duration_kbps(&bench, length));
 482         }
 483
 484         return retval;
 485 }
 486
 487 static int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 488 {
 489         if (argc != 1)
 490                 return ERROR_COMMAND_SYNTAX_ERROR;
 491
 492         flash_bank_t *p;
 493         int retval = flash_command_get_bank_by_num(cmd_ctx, args[0], &p);
 494         if (ERROR_OK != retval)
 495                 return retval;
 496
 497         if ((retval = p->driver->protect_check(p)) == ERROR_OK)
 498         {
 499                 command_print(cmd_ctx, "successfully checked protect state");
 500         }
 501         else if (retval == ERROR_FLASH_OPERATION_FAILED)
 502         {
 503                 command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8" PRIx32, args[0], p->base);
 504         }
 505         else
 506         {
 507                 command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8" PRIx32, args[0], p->base);
 508         }
 509
 510         return ERROR_OK;
 511 }
 512
 513 static int flash_check_sector_parameters(struct command_context_s *cmd_ctx,
 514                 uint32_t first, uint32_t last, uint32_t num_sectors)
 515 {
 516         if (!(first <= last)) {
 517                 command_print(cmd_ctx, "ERROR: "
 518                                 "first sector must be <= last sector");
 519                 return ERROR_FAIL;
 520         }
 521
 522         if (!(last <= (num_sectors - 1))) {
 523                 command_print(cmd_ctx, "ERROR: last sector must be <= %d",
 524                                 (int) num_sectors - 1);
 525                 return ERROR_FAIL;
 526         }
 527
 528         return ERROR_OK;
 529 }
 530
 531 static int handle_flash_erase_command(struct command_context_s *cmd_ctx,
 532                 char *cmd, char **args, int argc)
 533 {
 534         if (argc != 2)
 535                 return ERROR_COMMAND_SYNTAX_ERROR;
 536
 537         uint32_t bank_nr;
 538         uint32_t first;
 539         uint32_t last;
 540
 541         COMMAND_PARSE_NUMBER(u32, args[0], bank_nr);
 542         flash_bank_t *p = get_flash_bank_by_num(bank_nr);
 543         if (!p)
 544                 return ERROR_OK;
 545
 546         COMMAND_PARSE_NUMBER(u32, args[1], first);
 547         if (strcmp(args[2], "last") == 0)
 548                 last = p->num_sectors - 1;
 549         else
 550                 COMMAND_PARSE_NUMBER(u32, args[2], last);
 551
 552         int retval;
 553         if ((retval = flash_check_sector_parameters(cmd_ctx,
 554                         first, last, p->num_sectors)) != ERROR_OK)
 555                 return retval;
 556
 557         struct duration bench;
 558         duration_start(&bench);
 559
 560         retval = flash_driver_erase(p, first, last);
 561
 562         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
 563         {
 564                 command_print(cmd_ctx, "erased sectors %" PRIu32 " "
 565                                 "through %" PRIu32" on flash bank %" PRIu32 " "
 566                                 "in %fs", first, last, bank_nr, duration_elapsed(&bench));
 567         }
 568
 569         return ERROR_OK;
 570 }
 571
 572 static int handle_flash_protect_command(struct command_context_s *cmd_ctx,
 573                 char *cmd, char **args, int argc)
 574 {
 575         if (argc != 3)
 576                 return ERROR_COMMAND_SYNTAX_ERROR;
 577
 578         uint32_t bank_nr;
 579         uint32_t first;
 580         uint32_t last;
 581         int set;
 582
 583         COMMAND_PARSE_NUMBER(u32, args[0], bank_nr);
 584         flash_bank_t *p = get_flash_bank_by_num(bank_nr);
 585         if (!p)
 586                 return ERROR_OK;
 587
 588         COMMAND_PARSE_NUMBER(u32, args[1], first);
 589         if (strcmp(args[2], "last") == 0)
 590                 last = p->num_sectors - 1;
 591         else
 592                 COMMAND_PARSE_NUMBER(u32, args[2], last);
 593
 594         if (strcmp(args[3], "on") == 0)
 595                 set = 1;
 596         else if (strcmp(args[3], "off") == 0)
 597                 set = 0;
 598         else
 599                 return ERROR_COMMAND_SYNTAX_ERROR;
 600
 601         int retval;
 602         if ((retval = flash_check_sector_parameters(cmd_ctx,
 603                         first, last, p->num_sectors)) != ERROR_OK)
 604                 return retval;
 605
 606         retval = flash_driver_protect(p, set, first, last);
 607         if (retval == ERROR_OK) {
 608                 command_print(cmd_ctx, "%s protection for sectors %i "
 609                                 "through %i on flash bank %i",
 610                         (set) ? "set" : "cleared", (int) first,
 611                         (int) last, (int) bank_nr);
 612         }
 613
 614         return ERROR_OK;
 615 }
 616
 617 static int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 618 {
 619         target_t *target = get_current_target(cmd_ctx);
 620
 621         image_t image;
 622         uint32_t written;
 623
 624         int retval;
 625
 626         if (argc < 1)
 627         {
 628                 return ERROR_COMMAND_SYNTAX_ERROR;
 629         }
 630
 631         /* flash auto-erase is disabled by default*/
 632         int auto_erase = 0;
 633         bool auto_unlock = false;
 634
 635         for (;;)
 636         {
 637                 if (strcmp(args[0], "erase") == 0)
 638                 {
 639                         auto_erase = 1;
 640                         args++;
 641                         argc--;
 642                         command_print(cmd_ctx, "auto erase enabled");
 643                 } else if (strcmp(args[0], "unlock") == 0)
 644                 {
 645                         auto_unlock = true;
 646                         args++;
 647                         argc--;
 648                         command_print(cmd_ctx, "auto unlock enabled");
 649                 } else
 650                 {
 651                         break;
 652                 }
 653         }
 654
 655         if (argc < 1)
 656         {
 657                 return ERROR_COMMAND_SYNTAX_ERROR;
 658         }
 659
 660         if (!target)
 661         {
 662                 LOG_ERROR("no target selected");
 663                 return ERROR_FAIL;
 664         }
 665
 666         struct duration bench;
 667         duration_start(&bench);
 668
 669         if (argc >= 2)
 670         {
 671                 image.base_address_set = 1;
 672                 COMMAND_PARSE_NUMBER(int, args[1], image.base_address);
 673         }
 674         else
 675         {
 676                 image.base_address_set = 0;
 677                 image.base_address = 0x0;
 678         }
 679
 680         image.start_address_set = 0;
 681
 682         retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
 683         if (retval != ERROR_OK)
 684         {
 685                 return retval;
 686         }
 687
 688         retval = flash_write_unlock(target, &image, &written, auto_erase, auto_unlock);
 689         if (retval != ERROR_OK)
 690         {
 691                 image_close(&image);
 692                 return retval;
 693         }
 694
 695         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
 696         {
 697                 command_print(cmd_ctx, "wrote %" PRIu32 " byte from file %s "
 698                                 "in %fs (%0.3f kb/s)", written, args[0],
 699                                 duration_elapsed(&bench), duration_kbps(&bench, written));
 700         }
 701
 702         image_close(&image);
 703
 704         return retval;
 705 }
 706
 707 static int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 708 {
 709         int err = ERROR_OK;
 710         uint32_t address;
 711         uint32_t pattern;
 712         uint32_t count;
 713         uint8_t chunk[1024];
 714         uint8_t readback[1024];
 715         uint32_t wrote = 0;
 716         uint32_t cur_size = 0;
 717         uint32_t chunk_count;
 718         target_t *target = get_current_target(cmd_ctx);
 719         uint32_t i;
 720         uint32_t wordsize;
 721
 722         if (argc != 3)
 723                 return ERROR_COMMAND_SYNTAX_ERROR;
 724
 725         COMMAND_PARSE_NUMBER(u32, args[0], address);
 726         COMMAND_PARSE_NUMBER(u32, args[1], pattern);
 727         COMMAND_PARSE_NUMBER(u32, args[2], count);
 728
 729         if (count == 0)
 730                 return ERROR_OK;
 731
 732         switch (cmd[4])
 733         {
 734         case 'w':
 735                 wordsize = 4;
 736                 break;
 737         case 'h':
 738                 wordsize = 2;
 739                 break;
 740         case 'b':
 741                 wordsize = 1;
 742                 break;
 743         default:
 744                 return ERROR_COMMAND_SYNTAX_ERROR;
 745         }
 746
 747         chunk_count = MIN(count, (1024 / wordsize));
 748         switch (wordsize)
 749         {
 750         case 4:
 751                 for (i = 0; i < chunk_count; i++)
 752                 {
 753                         target_buffer_set_u32(target, chunk + i * wordsize, pattern);
 754                 }
 755                 break;
 756         case 2:
 757                 for (i = 0; i < chunk_count; i++)
 758                 {
 759                         target_buffer_set_u16(target, chunk + i * wordsize, pattern);
 760                 }
 761                 break;
 762         case 1:
 763                 memset(chunk, pattern, chunk_count);
 764                 break;
 765         default:
 766                 LOG_ERROR("BUG: can't happen");
 767                 exit(-1);
 768         }
 769
 770         struct duration bench;
 771         duration_start(&bench);
 772
 773         for (wrote = 0; wrote < (count*wordsize); wrote += cur_size)
 774         {
 775                 cur_size = MIN((count*wordsize - wrote), sizeof(chunk));
 776                 flash_bank_t *bank;
 777                 bank = get_flash_bank_by_addr(target, address);
 778                 if (bank == NULL)
 779                 {
 780                         return ERROR_FAIL;
 781                 }
 782                 err = flash_driver_write(bank, chunk, address - bank->base + wrote, cur_size);
 783                 if (err != ERROR_OK)
 784                         return err;
 785
 786                 err = target_read_buffer(target, address + wrote, cur_size, readback);
 787                 if (err != ERROR_OK)
 788                         return err;
 789
 790                 unsigned i;
 791                 for (i = 0; i < cur_size; i++)
 792                 {
 793                         if (readback[i]!=chunk[i])
 794                         {
 795                                 LOG_ERROR("Verfication error address 0x%08" PRIx32 ", read back 0x%02x, expected 0x%02x",
 796                                                   address + wrote + i, readback[i], chunk[i]);
 797                                 return ERROR_FAIL;
 798                         }
 799                 }
 800         }
 801
 802         if (duration_measure(&bench) == ERROR_OK)
 803         {
 804                 command_print(cmd_ctx, "wrote %" PRIu32 " bytes to 0x%8.8" PRIx32
 805                                 " in %fs (%0.3f kb/s)", wrote, address,
 806                                 duration_elapsed(&bench), duration_kbps(&bench, wrote));
 807         }
 808         return ERROR_OK;
 809 }
 810
 811 static int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 812 {
 813         uint32_t offset;
 814         uint8_t *buffer;
 815         uint32_t buf_cnt;
 816         fileio_t fileio;
 817
 818         if (argc != 3)
 819                 return ERROR_COMMAND_SYNTAX_ERROR;
 820
 821         struct duration bench;
 822         duration_start(&bench);
 823
 824         flash_bank_t *p;
 825         int retval = flash_command_get_bank_by_num(cmd_ctx, args[0], &p);
 826         if (ERROR_OK != retval)
 827                 return retval;
 828
 829         COMMAND_PARSE_NUMBER(u32, args[2], offset);
 830
 831         if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 832         {
 833                 return ERROR_OK;
 834         }
 835
 836         buffer = malloc(fileio.size);
 837         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
 838         {
 839                 free(buffer);
 840                 fileio_close(&fileio);
 841                 return ERROR_OK;
 842         }
 843
 844         retval = flash_driver_write(p, buffer, offset, buf_cnt);
 845
 846         free(buffer);
 847         buffer = NULL;
 848
 849         if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
 850         {
 851                 command_print(cmd_ctx, "wrote %lld byte from file %s to flash bank %u"
 852                                 " at offset 0x%8.8" PRIx32 " in %fs (%0.3f kb/s)",
 853                                 fileio.size, args[1], p->bank_number, offset,
 854                                 duration_elapsed(&bench), duration_kbps(&bench, fileio.size));
 855         }
 856
 857         fileio_close(&fileio);
 858
 859         return retval;
 860 }
 861
 862 void flash_set_dirty(void)
 863 {
 864         flash_bank_t *c;
 865         int i;
 866
 867         /* set all flash to require erasing */
 868         for (c = flash_banks; c; c = c->next)
 869         {
 870                 for (i = 0; i < c->num_sectors; i++)
 871                 {
 872                         c->sectors[i].is_erased = 0;
 873                 }
 874         }
 875 }
 876
 877 /* lookup flash bank by address */
 878 flash_bank_t *get_flash_bank_by_addr(target_t *target, uint32_t addr)
 879 {
 880         flash_bank_t *c;
 881
 882         /* cycle through bank list */
 883         for (c = flash_banks; c; c = c->next)
 884         {
 885                 int retval;
 886                 retval = c->driver->auto_probe(c);
 887
 888                 if (retval != ERROR_OK)
 889                 {
 890                         LOG_ERROR("auto_probe failed %d\n", retval);
 891                         return NULL;
 892                 }
 893                 /* check whether address belongs to this flash bank */
 894                 if ((addr >= c->base) && (addr <= c->base + (c->size - 1)) && target == c->target)
 895                         return c;
 896         }
 897         LOG_ERROR("No flash at address 0x%08" PRIx32 "\n", addr);
 898         return NULL;
 899 }
 900
 901 /* erase given flash region, selects proper bank according to target and address */
 902 static int flash_iterate_address_range(target_t *target, uint32_t addr, uint32_t length,
 903                 int (*callback)(struct flash_bank_s *bank, int first, int last))
 904 {
 905         flash_bank_t *c;
 906         int first = -1;
 907         int last = -1;
 908         int i;
 909
 910         if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
 911                 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
 912
 913         if (c->size == 0 || c->num_sectors == 0)
 914         {
 915                 LOG_ERROR("Bank is invalid");
 916                 return ERROR_FLASH_BANK_INVALID;
 917         }
 918
 919         if (length == 0)
 920         {
 921                 /* special case, erase whole bank when length is zero */
 922                 if (addr != c->base)
 923                         return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 924
 925                 return callback(c, 0, c->num_sectors - 1);
 926         }
 927
 928         /* check whether it fits */
 929         if (addr + length - 1 > c->base + c->size - 1)
 930                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 931
 932         addr -= c->base;
 933
 934         for (i = 0; i < c->num_sectors; i++)
 935         {
 936                 /* check whether sector overlaps with the given range and is not yet erased */
 937                 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
 938                         /* if first is not set yet then this is the first sector */
 939                         if (first == -1)
 940                                 first = i;
 941                         last = i; /* and it is the last one so far in any case */
 942                 }
 943         }
 944
 945         if (first == -1 || last == -1)
 946                 return ERROR_OK;
 947
 948         return callback(c, first, last);
 949 }
 950
 951
 952
 953 int flash_erase_address_range(target_t *target, uint32_t addr, uint32_t length)
 954 {
 955         return flash_iterate_address_range(target, addr, length, &flash_driver_erase);
 956 }
 957
 958 static int flash_driver_unprotect(struct flash_bank_s *bank, int first, int last)
 959 {
 960         return flash_driver_protect(bank, 0, first, last);
 961 }
 962
 963 static int flash_unlock_address_range(target_t *target, uint32_t addr, uint32_t length)
 964 {
 965         return flash_iterate_address_range(target, addr, length, &flash_driver_unprotect);
 966 }
 967
 968
 969 /* write (optional verify) an image to flash memory of the given target */
 970 static int flash_write_unlock(target_t *target, image_t *image, uint32_t *written, int erase, bool unlock)
 971 {
 972         int retval = ERROR_OK;
 973
 974         int section;
 975         uint32_t section_offset;
 976         flash_bank_t *c;
 977         int *padding;
 978
 979         section = 0;
 980         section_offset = 0;
 981
 982         if (written)
 983                 *written = 0;
 984
 985         if (erase)
 986         {
 987                 /* assume all sectors need erasing - stops any problems
 988                  * when flash_write is called multiple times */
 989
 990                 flash_set_dirty();
 991         }
 992
 993         /* allocate padding array */
 994         padding = malloc(image->num_sections * sizeof(padding));
 995
 996         /* loop until we reach end of the image */
 997         while (section < image->num_sections)
 998         {
 999                 uint32_t buffer_size;
1000                 uint8_t *buffer;
1001                 int section_first;
1002                 int section_last;
1003                 uint32_t run_address = image->sections[section].base_address + section_offset;
1004                 uint32_t run_size = image->sections[section].size - section_offset;
1005                 int pad_bytes = 0;
1006
1007                 if (image->sections[section].size ==  0)
1008                 {
1009                         LOG_WARNING("empty section %d", section);
1010                         section++;
1011                         section_offset = 0;
1012                         continue;
1013                 }
1014
1015                 /* find the corresponding flash bank */
1016                 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
1017                 {
1018                         section++; /* and skip it */
1019                         section_offset = 0;
1020                         continue;
1021                 }
1022
1023                 /* collect consecutive sections which fall into the same bank */
1024                 section_first = section;
1025                 section_last = section;
1026                 padding[section] = 0;
1027                 while ((run_address + run_size - 1 < c->base + c->size - 1)
1028                                 && (section_last + 1 < image->num_sections))
1029                 {
1030                         if (image->sections[section_last + 1].base_address < (run_address + run_size))
1031                         {
1032                                 LOG_DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
1033                                 break;
1034                         }
1035                         /* if we have multiple sections within our image, flash programming could fail due to alignment issues
1036                          * attempt to rebuild a consecutive buffer for the flash loader */
1037                         pad_bytes = (image->sections[section_last + 1].base_address) - (run_address + run_size);
1038                         if ((run_address + run_size + pad_bytes) > (c->base + c->size))
1039                                 break;
1040                         padding[section_last] = pad_bytes;
1041                         run_size += image->sections[++section_last].size;
1042                         run_size += pad_bytes;
1043                         padding[section_last] = 0;
1044
1045                         LOG_INFO("Padding image section %d with %d bytes", section_last-1, pad_bytes);
1046                 }
1047
1048                 /* fit the run into bank constraints */
1049                 if (run_address + run_size - 1 > c->base + c->size - 1)
1050                 {
1051                         LOG_WARNING("writing %d bytes only - as image section is %d bytes and bank is only %d bytes", \
1052                                     (int)(c->base + c->size - run_address), (int)(run_size), (int)(c->size));
1053                         run_size = c->base + c->size - run_address;
1054                 }
1055
1056                 /* allocate buffer */
1057                 buffer = malloc(run_size);
1058                 buffer_size = 0;
1059
1060                 /* read sections to the buffer */
1061                 while (buffer_size < run_size)
1062                 {
1063                         uint32_t size_read;
1064
1065                         size_read = run_size - buffer_size;
1066                         if (size_read > image->sections[section].size - section_offset)
1067                             size_read = image->sections[section].size - section_offset;
1068
1069                         if ((retval = image_read_section(image, section, section_offset,
1070                                         size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
1071                         {
1072                                 free(buffer);
1073                                 free(padding);
1074                                 return retval;
1075                         }
1076
1077                         /* see if we need to pad the section */
1078                         while (padding[section]--)
1079                                  (buffer + buffer_size)[size_read++] = 0xff;
1080
1081                         buffer_size += size_read;
1082                         section_offset += size_read;
1083
1084                         if (section_offset >= image->sections[section].size)
1085                         {
1086                                 section++;
1087                                 section_offset = 0;
1088                         }
1089                 }
1090
1091                 retval = ERROR_OK;
1092
1093                 if (unlock)
1094                 {
1095                         retval = flash_unlock_address_range(target, run_address, run_size);
1096                 }
1097                 if (retval == ERROR_OK)
1098                 {
1099                         if (erase)
1100                         {
1101                                 /* calculate and erase sectors */
1102                                 retval = flash_erase_address_range(target, run_address, run_size);
1103                         }
1104                 }
1105
1106                 if (retval == ERROR_OK)
1107                 {
1108                         /* write flash sectors */
1109                         retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
1110                 }
1111
1112                 free(buffer);
1113
1114                 if (retval != ERROR_OK)
1115                 {
1116                         free(padding);
1117                         return retval; /* abort operation */
1118                 }
1119
1120                 if (written != NULL)
1121                         *written += run_size; /* add run size to total written counter */
1122         }
1123
1124         free(padding);
1125
1126         return retval;
1127 }
1128
1129 int flash_write(target_t *target, image_t *image, uint32_t *written, int erase)
1130 {
1131         return flash_write_unlock(target, image, written, erase, false);
1132 }
1133
1134 int default_flash_mem_blank_check(struct flash_bank_s *bank)
1135 {
1136         target_t *target = bank->target;
1137         uint8_t buffer[1024];
1138         int buffer_size = sizeof(buffer);
1139         int i;
1140         uint32_t nBytes;
1141
1142         if (bank->target->state != TARGET_HALTED)
1143         {
1144                 LOG_ERROR("Target not halted");
1145                 return ERROR_TARGET_NOT_HALTED;
1146         }
1147
1148         for (i = 0; i < bank->num_sectors; i++)
1149         {
1150                 uint32_t j;
1151                 bank->sectors[i].is_erased = 1;
1152
1153                 for (j = 0; j < bank->sectors[i].size; j += buffer_size)
1154                 {
1155                         uint32_t chunk;
1156                         int retval;
1157                         chunk = buffer_size;
1158                         if (chunk > (j - bank->sectors[i].size))
1159                         {
1160                                 chunk = (j - bank->sectors[i].size);
1161                         }
1162
1163                         retval = target_read_memory(target, bank->base + bank->sectors[i].offset + j, 4, chunk/4, buffer);
1164                         if (retval != ERROR_OK)
1165                                 return retval;
1166
1167                         for (nBytes = 0; nBytes < chunk; nBytes++)
1168                         {
1169                                 if (buffer[nBytes] != 0xFF)
1170                                 {
1171                                         bank->sectors[i].is_erased = 0;
1172                                         break;
1173                                 }
1174                         }
1175                 }
1176         }
1177
1178         return ERROR_OK;
1179 }
1180
1181 int default_flash_blank_check(struct flash_bank_s *bank)
1182 {
1183         target_t *target = bank->target;
1184         int i;
1185         int retval;
1186         int fast_check = 0;
1187         uint32_t blank;
1188
1189         if (bank->target->state != TARGET_HALTED)
1190         {
1191                 LOG_ERROR("Target not halted");
1192                 return ERROR_TARGET_NOT_HALTED;
1193         }
1194
1195         for (i = 0; i < bank->num_sectors; i++)
1196         {
1197                 uint32_t address = bank->base + bank->sectors[i].offset;
1198                 uint32_t size = bank->sectors[i].size;
1199
1200                 if ((retval = target_blank_check_memory(target, address, size, &blank)) != ERROR_OK)
1201                 {
1202                         fast_check = 0;
1203                         break;
1204                 }
1205                 if (blank == 0xFF)
1206                         bank->sectors[i].is_erased = 1;
1207                 else
1208                         bank->sectors[i].is_erased = 0;
1209                 fast_check = 1;
1210         }
1211
1212         if (!fast_check)
1213         {
1214                 LOG_USER("Running slow fallback erase check - add working memory");
1215                 return default_flash_mem_blank_check(bank);
1216         }
1217
1218         return ERROR_OK;
1219 }
1220
1221 int flash_init_drivers(struct command_context_s *cmd_ctx)
1222 {
1223         register_jim(cmd_ctx, "ocd_flash_banks",
1224                         jim_flash_banks, "return information about the flash banks");
1225
1226         if (!flash_banks)
1227                 return ERROR_OK;
1228
1229         register_command(cmd_ctx, flash_cmd, "info",
1230                         handle_flash_info_command, COMMAND_EXEC,
1231                         "print info about flash bank <num>");
1232         register_command(cmd_ctx, flash_cmd, "probe",
1233                         handle_flash_probe_command, COMMAND_EXEC,
1234                         "identify flash bank <num>");
1235         register_command(cmd_ctx, flash_cmd, "erase_check",
1236                         handle_flash_erase_check_command, COMMAND_EXEC,
1237                         "check erase state of sectors in flash bank <num>");
1238         register_command(cmd_ctx, flash_cmd, "protect_check",
1239                         handle_flash_protect_check_command, COMMAND_EXEC,
1240                         "check protection state of sectors in flash bank <num>");
1241         register_command(cmd_ctx, flash_cmd, "erase_sector",
1242                         handle_flash_erase_command, COMMAND_EXEC,
1243                         "erase sectors at <bank> <first> <last>");
1244         register_command(cmd_ctx, flash_cmd, "erase_address",
1245                         handle_flash_erase_address_command, COMMAND_EXEC,
1246                         "erase address range <address> <length>");
1247
1248         register_command(cmd_ctx, flash_cmd, "fillw",
1249                         handle_flash_fill_command, COMMAND_EXEC,
1250                         "fill with pattern (no autoerase) <address> <word_pattern> <count>");
1251         register_command(cmd_ctx, flash_cmd, "fillh",
1252                         handle_flash_fill_command, COMMAND_EXEC,
1253                         "fill with pattern <address> <halfword_pattern> <count>");
1254         register_command(cmd_ctx, flash_cmd, "fillb",
1255                         handle_flash_fill_command, COMMAND_EXEC,
1256                         "fill with pattern <address> <byte_pattern> <count>");
1257
1258         register_command(cmd_ctx, flash_cmd, "write_bank",
1259                         handle_flash_write_bank_command, COMMAND_EXEC,
1260                         "write binary data to <bank> <file> <offset>");
1261         register_command(cmd_ctx, flash_cmd, "write_image",
1262                         handle_flash_write_image_command, COMMAND_EXEC,
1263                         "write_image [erase] [unlock] <file> [offset] [type]");
1264         register_command(cmd_ctx, flash_cmd, "protect",
1265                         handle_flash_protect_command, COMMAND_EXEC,
1266                         "set protection of sectors at <bank> <first> <last> <on | off>");
1267
1268         return ERROR_OK;
1269 }
1270
1271 int flash_register_commands(struct command_context_s *cmd_ctx)
1272 {
1273         flash_cmd = register_command(cmd_ctx, NULL, "flash",
1274                         NULL, COMMAND_ANY, NULL);
1275
1276         register_command(cmd_ctx, flash_cmd, "bank",
1277                         handle_flash_bank_command, COMMAND_CONFIG,
1278                         "flash bank <driver> <base> <size> "
1279                         "<chip_width> <bus_width> <target> [driver_options ...]");
1280         return ERROR_OK;
1281 }