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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 /* command handlers */
  35 static int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  36 static int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  37 static int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  38 static int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  39 static int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  40 static int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  41 static int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  42 static int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  43 static int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  44 static int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  45 static int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  46 static int flash_write_unlock(target_t *target, image_t *image, uint32_t *written, int erase, bool unlock);
  47
  48 /* flash drivers
  49  */
  50 extern flash_driver_t lpc2000_flash;
  51 extern flash_driver_t lpc288x_flash;
  52 extern flash_driver_t lpc2900_flash;
  53 extern flash_driver_t cfi_flash;
  54 extern flash_driver_t at91sam3_flash;
  55 extern flash_driver_t at91sam7_flash;
  56 extern flash_driver_t str7x_flash;
  57 extern flash_driver_t str9x_flash;
  58 extern flash_driver_t aduc702x_flash;
  59 extern flash_driver_t stellaris_flash;
  60 extern flash_driver_t str9xpec_flash;
  61 extern flash_driver_t stm32x_flash;
  62 extern flash_driver_t tms470_flash;
  63 extern flash_driver_t ecosflash_flash;
  64 extern flash_driver_t ocl_flash;
  65 extern flash_driver_t pic32mx_flash;
  66 extern flash_driver_t avr_flash;
  67
  68 flash_driver_t *flash_drivers[] = {
  69         &lpc2000_flash,
  70         &lpc288x_flash,
  71         &lpc2900_flash,
  72         &cfi_flash,
  73         &at91sam7_flash,
  74         &at91sam3_flash,
  75         &str7x_flash,
  76         &str9x_flash,
  77         &aduc702x_flash,
  78         &stellaris_flash,
  79         &str9xpec_flash,
  80         &stm32x_flash,
  81         &tms470_flash,
  82         &ecosflash_flash,
  83         &ocl_flash,
  84         &pic32mx_flash,
  85         &avr_flash,
  86         NULL,
  87 };
  88
  89 flash_bank_t *flash_banks;
  90 static  command_t *flash_cmd;
  91
  92 /* wafer thin wrapper for invoking the flash driver */
  93 static int flash_driver_write(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
  94 {
  95         int retval;
  96
  97         retval = bank->driver->write(bank, buffer, offset, count);
  98         if (retval != ERROR_OK)
  99         {
 100                 LOG_ERROR("error writing to flash at address 0x%08" PRIx32 " at offset 0x%8.8" PRIx32 " (%d)",
 101                           bank->base, offset, retval);
 102         }
 103
 104         return retval;
 105 }
 106
 107 static int flash_driver_erase(struct flash_bank_s *bank, int first, int last)
 108 {
 109         int retval;
 110
 111         retval = bank->driver->erase(bank, first, last);
 112         if (retval != ERROR_OK)
 113         {
 114                 LOG_ERROR("failed erasing sectors %d to %d (%d)", first, last, retval);
 115         }
 116
 117         return retval;
 118 }
 119
 120 int flash_driver_protect(struct flash_bank_s *bank, int set, int first, int last)
 121 {
 122         int retval;
 123
 124         retval = bank->driver->protect(bank, set, first, last);
 125         if (retval != ERROR_OK)
 126         {
 127                 LOG_ERROR("failed setting protection for areas %d to %d (%d)", first, last, retval);
 128         }
 129
 130         return retval;
 131 }
 132
 133 int flash_register_commands(struct command_context_s *cmd_ctx)
 134 {
 135         flash_cmd = register_command(cmd_ctx, NULL, "flash", NULL, COMMAND_ANY, NULL);
 136
 137         register_command(cmd_ctx, flash_cmd, "bank", handle_flash_bank_command, COMMAND_CONFIG, "flash bank <driver> <base> <size> <chip_width> <bus_width> <target> [driver_options ...]");
 138         return ERROR_OK;
 139 }
 140
 141 static int jim_flash_banks(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 142 {
 143         flash_bank_t *p;
 144
 145         if (argc != 1) {
 146                 Jim_WrongNumArgs(interp, 1, argv, "no arguments to flash_banks command");
 147                 return JIM_ERR;
 148         }
 149
 150         Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
 151         for (p = flash_banks; p; p = p->next)
 152         {
 153                 Jim_Obj *elem = Jim_NewListObj(interp, NULL, 0);
 154
 155                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "name", -1));
 156                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, p->driver->name, -1));
 157                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "base", -1));
 158                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->base));
 159                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "size", -1));
 160                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->size));
 161                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "bus_width", -1));
 162                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->bus_width));
 163                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "chip_width", -1));
 164                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->chip_width));
 165
 166                 Jim_ListAppendElement(interp, list, elem);
 167         }
 168
 169         Jim_SetResult(interp, list);
 170
 171         return JIM_OK;
 172 }
 173
 174 int flash_init_drivers(struct command_context_s *cmd_ctx)
 175 {
 176         register_jim(cmd_ctx, "ocd_flash_banks", jim_flash_banks, "return information about the flash banks");
 177
 178         if (flash_banks)
 179         {
 180                 register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
 181                                                  "print info about flash bank <num>");
 182                 register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
 183                                                  "identify flash bank <num>");
 184                 register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
 185                                                  "check erase state of sectors in flash bank <num>");
 186                 register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
 187                                                  "check protection state of sectors in flash bank <num>");
 188                 register_command(cmd_ctx, flash_cmd, "erase_sector", handle_flash_erase_command, COMMAND_EXEC,
 189                                                  "erase sectors at <bank> <first> <last>");
 190                 register_command(cmd_ctx, flash_cmd, "erase_address", handle_flash_erase_address_command, COMMAND_EXEC,
 191                                                  "erase address range <address> <length>");
 192
 193                 register_command(cmd_ctx, flash_cmd, "fillw", handle_flash_fill_command, COMMAND_EXEC,
 194                                                  "fill with pattern (no autoerase) <address> <word_pattern> <count>");
 195                 register_command(cmd_ctx, flash_cmd, "fillh", handle_flash_fill_command, COMMAND_EXEC,
 196                                                  "fill with pattern <address> <halfword_pattern> <count>");
 197                 register_command(cmd_ctx, flash_cmd, "fillb", handle_flash_fill_command, COMMAND_EXEC,
 198                                                  "fill with pattern <address> <byte_pattern> <count>");
 199
 200                 register_command(cmd_ctx, flash_cmd, "write_bank", handle_flash_write_bank_command, COMMAND_EXEC,
 201                                                  "write binary data to <bank> <file> <offset>");
 202                 register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
 203                                                  "write_image [erase] [unlock] <file> [offset] [type]");
 204                 register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
 205                                                  "set protection of sectors at <bank> <first> <last> <on | off>");
 206         }
 207
 208         return ERROR_OK;
 209 }
 210
 211 flash_bank_t *get_flash_bank_by_num_noprobe(int num)
 212 {
 213         flash_bank_t *p;
 214         int i = 0;
 215
 216         for (p = flash_banks; p; p = p->next)
 217         {
 218                 if (i++ == num)
 219                 {
 220                         return p;
 221                 }
 222         }
 223         LOG_ERROR("flash bank %d does not exist", num);
 224         return NULL;
 225 }
 226
 227 int flash_get_bank_count(void)
 228 {
 229         flash_bank_t *p;
 230         int i = 0;
 231         for (p = flash_banks; p; p = p->next)
 232         {
 233                 i++;
 234         }
 235         return i;
 236 }
 237
 238 flash_bank_t *get_flash_bank_by_num(int num)
 239 {
 240         flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
 241         int retval;
 242
 243         if (p == NULL)
 244                 return NULL;
 245
 246         retval = p->driver->auto_probe(p);
 247
 248         if (retval != ERROR_OK)
 249         {
 250                 LOG_ERROR("auto_probe failed %d\n", retval);
 251                 return NULL;
 252         }
 253         return p;
 254 }
 255
 256 static int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 257 {
 258         int retval;
 259         int i;
 260         int found = 0;
 261         target_t *target;
 262
 263         if (argc < 6)
 264         {
 265                 return ERROR_COMMAND_SYNTAX_ERROR;
 266         }
 267
 268         if ((target = get_target(args[5])) == NULL)
 269         {
 270                 LOG_ERROR("target '%s' not defined", args[5]);
 271                 return ERROR_FAIL;
 272         }
 273
 274         for (i = 0; flash_drivers[i]; i++)
 275         {
 276                 if (strcmp(args[0], flash_drivers[i]->name) == 0)
 277                 {
 278                         flash_bank_t *p, *c;
 279
 280                         /* register flash specific commands */
 281                         if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 282                         {
 283                                 LOG_ERROR("couldn't register '%s' commands", args[0]);
 284                                 return ERROR_FAIL;
 285                         }
 286
 287                         c = malloc(sizeof(flash_bank_t));
 288                         c->target = target;
 289                         c->driver = flash_drivers[i];
 290                         c->driver_priv = NULL;
 291                         c->base = strtoul(args[1], NULL, 0);
 292                         c->size = strtoul(args[2], NULL, 0);
 293                         c->chip_width = strtoul(args[3], NULL, 0);
 294                         c->bus_width = strtoul(args[4], NULL, 0);
 295                         c->num_sectors = 0;
 296                         c->sectors = NULL;
 297                         c->next = NULL;
 298
 299                         if ((retval = flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c)) != ERROR_OK)
 300                         {
 301                                 LOG_ERROR("'%s' driver rejected flash bank at 0x%8.8" PRIx32 , args[0], c->base);
 302                                 free(c);
 303                                 return retval;
 304                         }
 305
 306                         /* put flash bank in linked list */
 307                         if (flash_banks)
 308                         {
 309                                 int     bank_num = 0;
 310                                 /* find last flash bank */
 311                                 for (p = flash_banks; p && p->next; p = p->next) bank_num++;
 312                                 if (p)
 313                                         p->next = c;
 314                                 c->bank_number = bank_num + 1;
 315                         }
 316                         else
 317                         {
 318                                 flash_banks = c;
 319                                 c->bank_number = 0;
 320                         }
 321
 322                         found = 1;
 323                 }
 324         }
 325
 326         /* no matching flash driver found */
 327         if (!found)
 328         {
 329                 LOG_ERROR("flash driver '%s' not found", args[0]);
 330                 return ERROR_FAIL;
 331         }
 332
 333         return ERROR_OK;
 334 }
 335
 336 static int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 337 {
 338         flash_bank_t *p;
 339         uint32_t i = 0;
 340         int j = 0;
 341         int retval;
 342
 343         if (argc != 1)
 344         {
 345                 return ERROR_COMMAND_SYNTAX_ERROR;
 346         }
 347
 348         for (p = flash_banks; p; p = p->next, i++)
 349         {
 350                 if (i == strtoul(args[0], NULL, 0))
 351                 {
 352                         char buf[1024];
 353
 354                         /* attempt auto probe */
 355                         if ((retval = p->driver->auto_probe(p)) != ERROR_OK)
 356                                 return retval;
 357
 358                         command_print(cmd_ctx,
 359                                       "#%" PRIi32 " : %s at 0x%8.8" PRIx32 ", size 0x%8.8" PRIx32 ", buswidth %i, chipwidth %i",
 360                                       i,
 361                                       p->driver->name,
 362                                       p->base,
 363                                       p->size,
 364                                       p->bus_width,
 365                                       p->chip_width);
 366                         for (j = 0; j < p->num_sectors; j++)
 367                         {
 368                                 char *protect_state;
 369
 370                                 if (p->sectors[j].is_protected == 0)
 371                                         protect_state = "not protected";
 372                                 else if (p->sectors[j].is_protected == 1)
 373                                         protect_state = "protected";
 374                                 else
 375                                         protect_state = "protection state unknown";
 376
 377                                 command_print(cmd_ctx,
 378                                               "\t#%3i: 0x%8.8" PRIx32 " (0x%" PRIx32 " %" PRIi32 "kB) %s",
 379                                               j,
 380                                               p->sectors[j].offset,
 381                                               p->sectors[j].size,
 382                                               p->sectors[j].size >> 10,
 383                                               protect_state);
 384                         }
 385
 386                         *buf = '\0'; /* initialize buffer, otherwise it migh contain garbage if driver function fails */
 387                         retval = p->driver->info(p, buf, sizeof(buf));
 388                         command_print(cmd_ctx, "%s", buf);
 389                         if (retval != ERROR_OK)
 390                                 LOG_ERROR("error retrieving flash info (%d)", retval);
 391                 }
 392         }
 393
 394         return ERROR_OK;
 395 }
 396
 397 static int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 398 {
 399         flash_bank_t *p;
 400         int retval;
 401
 402         if (argc != 1)
 403         {
 404                 return ERROR_COMMAND_SYNTAX_ERROR;
 405         }
 406
 407         p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
 408         if (p)
 409         {
 410                 if ((retval = p->driver->probe(p)) == ERROR_OK)
 411                 {
 412                         command_print(cmd_ctx, "flash '%s' found at 0x%8.8" PRIx32, p->driver->name, p->base);
 413                 }
 414                 else if (retval == ERROR_FLASH_BANK_INVALID)
 415                 {
 416                         command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8" PRIx32,
 417                                                   args[0], p->base);
 418                 }
 419                 else
 420                 {
 421                         command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8" PRIx32,
 422                                                   args[0], p->base);
 423                 }
 424         }
 425         else
 426         {
 427                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 428         }
 429
 430         return ERROR_OK;
 431 }
 432
 433 static int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 434 {
 435         flash_bank_t *p;
 436         int retval;
 437
 438         if (argc != 1)
 439         {
 440                 return ERROR_COMMAND_SYNTAX_ERROR;
 441         }
 442
 443         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 444         if (p)
 445         {
 446                 int j;
 447                 if ((retval = p->driver->erase_check(p)) == ERROR_OK)
 448                 {
 449                         command_print(cmd_ctx, "successfully checked erase state");
 450                 }
 451                 else
 452                 {
 453                         command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8" PRIx32,
 454                                 args[0], p->base);
 455                 }
 456
 457                 for (j = 0; j < p->num_sectors; j++)
 458                 {
 459                         char *erase_state;
 460
 461                         if (p->sectors[j].is_erased == 0)
 462                                 erase_state = "not erased";
 463                         else if (p->sectors[j].is_erased == 1)
 464                                 erase_state = "erased";
 465                         else
 466                                 erase_state = "erase state unknown";
 467
 468                         command_print(cmd_ctx,
 469                                       "\t#%3i: 0x%8.8" PRIx32 " (0x%" PRIx32 " %" PRIi32 "kB) %s",
 470                                       j,
 471                                       p->sectors[j].offset,
 472                                       p->sectors[j].size,
 473                                       p->sectors[j].size >> 10,
 474                                       erase_state);
 475                 }
 476         }
 477
 478         return ERROR_OK;
 479 }
 480
 481 static int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 482 {
 483         flash_bank_t *p;
 484         int retval;
 485         int address;
 486         int length;
 487         duration_t duration;
 488         char *duration_text;
 489
 490         target_t *target = get_current_target(cmd_ctx);
 491
 492         if (argc != 2)
 493         {
 494                 return ERROR_COMMAND_SYNTAX_ERROR;
 495         }
 496
 497         address = strtoul(args[0], NULL, 0);
 498         length = strtoul(args[1], NULL, 0);
 499         if (length <= 0)
 500         {
 501                 command_print(cmd_ctx, "Length must be >0");
 502                 return ERROR_COMMAND_SYNTAX_ERROR;
 503         }
 504
 505         p = get_flash_bank_by_addr(target, address);
 506         if (p == NULL)
 507         {
 508                 return ERROR_FAIL;
 509         }
 510
 511         /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
 512         flash_set_dirty();
 513
 514         duration_start_measure(&duration);
 515
 516         if ((retval = flash_erase_address_range(target, address, length)) == ERROR_OK)
 517         {
 518                 if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 519                 {
 520                         return retval;
 521                 }
 522                 command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
 523                 free(duration_text);
 524         }
 525
 526         return retval;
 527 }
 528
 529 static int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 530 {
 531         flash_bank_t *p;
 532         int retval;
 533
 534         if (argc != 1)
 535         {
 536                 return ERROR_COMMAND_SYNTAX_ERROR;
 537         }
 538
 539         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 540         if (p)
 541         {
 542                 if ((retval = p->driver->protect_check(p)) == ERROR_OK)
 543                 {
 544                         command_print(cmd_ctx, "successfully checked protect state");
 545                 }
 546                 else if (retval == ERROR_FLASH_OPERATION_FAILED)
 547                 {
 548                         command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8" PRIx32, args[0], p->base);
 549                 }
 550                 else
 551                 {
 552                         command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8" PRIx32, args[0], p->base);
 553                 }
 554         }
 555         else
 556         {
 557                 return ERROR_COMMAND_SYNTAX_ERROR;
 558         }
 559
 560         return ERROR_OK;
 561 }
 562
 563 static int flash_check_sector_parameters(struct command_context_s *cmd_ctx,
 564                 uint32_t first, uint32_t last, uint32_t num_sectors)
 565 {
 566         if (!(first <= last)) {
 567                 command_print(cmd_ctx, "ERROR: "
 568                                 "first sector must be <= last sector");
 569                 return ERROR_FAIL;
 570         }
 571
 572         if (!(last <= (num_sectors - 1))) {
 573                 command_print(cmd_ctx, "ERROR: last sector must be <= %d",
 574                                 (int) num_sectors - 1);
 575                 return ERROR_FAIL;
 576         }
 577
 578         return ERROR_OK;
 579 }
 580
 581 static int handle_flash_erase_command(struct command_context_s *cmd_ctx,
 582                 char *cmd, char **args, int argc)
 583 {
 584         if (argc > 2)
 585         {
 586                 uint32_t bank_nr;
 587                 uint32_t first;
 588                 uint32_t last;
 589                 int retval;
 590
 591                 if ((retval = parse_u32(args[0], &bank_nr)) != ERROR_OK)
 592                         return retval;
 593
 594                 flash_bank_t *p = get_flash_bank_by_num(bank_nr);
 595                 if (!p)
 596                         return ERROR_OK;
 597
 598                 if ((retval = parse_u32(args[1], &first)) != ERROR_OK)
 599                         return retval;
 600                 if (strcmp(args[2], "last") == 0)
 601                         last = p->num_sectors - 1;
 602                 else
 603                         if ((retval = parse_u32(args[2], &last)) != ERROR_OK)
 604                                 return retval;
 605
 606                 if ((retval = flash_check_sector_parameters(cmd_ctx,
 607                                 first, last, p->num_sectors)) != ERROR_OK)
 608                         return retval;
 609
 610                 duration_t duration;
 611                 char *duration_text;
 612                 duration_start_measure(&duration);
 613
 614                 if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK) {
 615                         if ((retval = duration_stop_measure(&duration,
 616                                                 &duration_text)) != ERROR_OK)
 617                                 return retval;
 618                         command_print(cmd_ctx, "erased sectors %i through %i "
 619                                         "on flash bank %i in %s",
 620                                 (int) first, (int) last, (int) bank_nr,
 621                                 duration_text);
 622                         free(duration_text);
 623                 }
 624         }
 625         else
 626                 return ERROR_COMMAND_SYNTAX_ERROR;
 627
 628         return ERROR_OK;
 629 }
 630
 631 static int handle_flash_protect_command(struct command_context_s *cmd_ctx,
 632                 char *cmd, char **args, int argc)
 633 {
 634         if (argc > 3)
 635         {
 636                 uint32_t bank_nr;
 637                 uint32_t first;
 638                 uint32_t last;
 639                 int retval;
 640                 int set;
 641
 642                 if ((retval = parse_u32(args[0], &bank_nr)) != ERROR_OK)
 643                         return retval;
 644
 645                 flash_bank_t *p = get_flash_bank_by_num(bank_nr);
 646                 if (!p)
 647                         return ERROR_OK;
 648
 649                 if ((retval = parse_u32(args[1], &first)) != ERROR_OK)
 650                         return retval;
 651                 if (strcmp(args[2], "last") == 0)
 652                         last = p->num_sectors - 1;
 653                 else
 654                         if ((retval = parse_u32(args[2], &last)) != ERROR_OK)
 655                                 return retval;
 656
 657                 if (strcmp(args[3], "on") == 0)
 658                         set = 1;
 659                 else if (strcmp(args[3], "off") == 0)
 660                         set = 0;
 661                 else
 662                         return ERROR_COMMAND_SYNTAX_ERROR;
 663
 664                 if ((retval = flash_check_sector_parameters(cmd_ctx,
 665                                 first, last, p->num_sectors)) != ERROR_OK)
 666                         return retval;
 667
 668                 retval = flash_driver_protect(p, set, first, last);
 669                 if (retval == ERROR_OK) {
 670                         command_print(cmd_ctx, "%s protection for sectors %i "
 671                                         "through %i on flash bank %i",
 672                                 (set) ? "set" : "cleared", (int) first,
 673                                 (int) last, (int) bank_nr);
 674                 }
 675         }
 676         else
 677                 return ERROR_COMMAND_SYNTAX_ERROR;
 678
 679         return ERROR_OK;
 680 }
 681
 682 static int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 683 {
 684         target_t *target = get_current_target(cmd_ctx);
 685
 686         image_t image;
 687         uint32_t written;
 688
 689         duration_t duration;
 690         char *duration_text;
 691
 692         int retval, retvaltemp;
 693
 694         if (argc < 1)
 695         {
 696                 return ERROR_COMMAND_SYNTAX_ERROR;
 697         }
 698
 699         /* flash auto-erase is disabled by default*/
 700         int auto_erase = 0;
 701         bool auto_unlock = false;
 702
 703         for (;;)
 704         {
 705                 if (strcmp(args[0], "erase") == 0)
 706                 {
 707                         auto_erase = 1;
 708                         args++;
 709                         argc--;
 710                         command_print(cmd_ctx, "auto erase enabled");
 711                 } else if (strcmp(args[0], "unlock") == 0)
 712                 {
 713                         auto_unlock = true;
 714                         args++;
 715                         argc--;
 716                         command_print(cmd_ctx, "auto unlock enabled");
 717                 } else
 718                 {
 719                         break;
 720                 }
 721         }
 722
 723         if (argc < 1)
 724         {
 725                 return ERROR_COMMAND_SYNTAX_ERROR;
 726         }
 727
 728         if (!target)
 729         {
 730                 LOG_ERROR("no target selected");
 731                 return ERROR_FAIL;
 732         }
 733
 734         duration_start_measure(&duration);
 735
 736         if (argc >= 2)
 737         {
 738                 image.base_address_set = 1;
 739                 image.base_address = strtoul(args[1], NULL, 0);
 740         }
 741         else
 742         {
 743                 image.base_address_set = 0;
 744                 image.base_address = 0x0;
 745         }
 746
 747         image.start_address_set = 0;
 748
 749         retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
 750         if (retval != ERROR_OK)
 751         {
 752                 return retval;
 753         }
 754
 755         retval = flash_write_unlock(target, &image, &written, auto_erase, auto_unlock);
 756         if (retval != ERROR_OK)
 757         {
 758                 image_close(&image);
 759                 return retval;
 760         }
 761
 762         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 763         {
 764                 image_close(&image);
 765                 return retvaltemp;
 766         }
 767
 768         float speed;
 769
 770         speed = written / 1024.0;
 771         speed /= ((float)duration.duration.tv_sec
 772                         + ((float)duration.duration.tv_usec / 1000000.0));
 773         command_print(cmd_ctx,
 774                         "wrote %" PRIu32 " byte from file %s in %s (%f kb/s)",
 775                         written, args[0], duration_text, speed);
 776
 777         free(duration_text);
 778
 779         image_close(&image);
 780
 781         return retval;
 782 }
 783
 784 static int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 785 {
 786         int err = ERROR_OK, retval;
 787         uint32_t address;
 788         uint32_t pattern;
 789         uint32_t count;
 790         uint8_t chunk[1024];
 791         uint8_t readback[1024];
 792         uint32_t wrote = 0;
 793         uint32_t cur_size = 0;
 794         uint32_t chunk_count;
 795         char *duration_text;
 796         duration_t duration;
 797         target_t *target = get_current_target(cmd_ctx);
 798         uint32_t i;
 799         uint32_t wordsize;
 800
 801         if (argc != 3)
 802         {
 803                 return ERROR_COMMAND_SYNTAX_ERROR;
 804         }
 805
 806         address = strtoul(args[0], NULL, 0);
 807         pattern = strtoul(args[1], NULL, 0);
 808         count   = strtoul(args[2], NULL, 0);
 809
 810         if (count == 0)
 811                 return ERROR_OK;
 812
 813         switch (cmd[4])
 814         {
 815         case 'w':
 816                 wordsize = 4;
 817                 break;
 818         case 'h':
 819                 wordsize = 2;
 820                 break;
 821         case 'b':
 822                 wordsize = 1;
 823                 break;
 824         default:
 825                 return ERROR_COMMAND_SYNTAX_ERROR;
 826         }
 827
 828         chunk_count = MIN(count, (1024 / wordsize));
 829         switch (wordsize)
 830         {
 831         case 4:
 832                 for (i = 0; i < chunk_count; i++)
 833                 {
 834                         target_buffer_set_u32(target, chunk + i * wordsize, pattern);
 835                 }
 836                 break;
 837         case 2:
 838                 for (i = 0; i < chunk_count; i++)
 839                 {
 840                         target_buffer_set_u16(target, chunk + i * wordsize, pattern);
 841                 }
 842                 break;
 843         case 1:
 844                 memset(chunk, pattern, chunk_count);
 845                 break;
 846         default:
 847                 LOG_ERROR("BUG: can't happen");
 848                 exit(-1);
 849         }
 850
 851         duration_start_measure(&duration);
 852
 853         for (wrote = 0; wrote < (count*wordsize); wrote += cur_size)
 854         {
 855                 cur_size = MIN((count*wordsize - wrote), sizeof(chunk));
 856                 flash_bank_t *bank;
 857                 bank = get_flash_bank_by_addr(target, address);
 858                 if (bank == NULL)
 859                 {
 860                         return ERROR_FAIL;
 861                 }
 862                 err = flash_driver_write(bank, chunk, address - bank->base + wrote, cur_size);
 863                 if (err != ERROR_OK)
 864                         return err;
 865
 866                 err = target_read_buffer(target, address + wrote, cur_size, readback);
 867                 if (err != ERROR_OK)
 868                         return err;
 869
 870                 unsigned i;
 871                 for (i = 0; i < cur_size; i++)
 872                 {
 873                         if (readback[i]!=chunk[i])
 874                         {
 875                                 LOG_ERROR("Verfication error address 0x%08" PRIx32 ", read back 0x%02x, expected 0x%02x",
 876                                                   address + wrote + i, readback[i], chunk[i]);
 877                                 return ERROR_FAIL;
 878                         }
 879                 }
 880
 881         }
 882
 883         if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 884         {
 885                 return retval;
 886         }
 887
 888         float speed;
 889
 890         speed = wrote / 1024.0;
 891         speed /= ((float)duration.duration.tv_sec
 892                         + ((float)duration.duration.tv_usec / 1000000.0));
 893         command_print(cmd_ctx,
 894                         "wrote %" PRIu32 " bytes to 0x%8.8" PRIx32 " in %s (%f kb/s)",
 895                         wrote, address, duration_text, speed);
 896
 897         free(duration_text);
 898         return ERROR_OK;
 899 }
 900
 901 static int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 902 {
 903         uint32_t offset;
 904         uint8_t *buffer;
 905         uint32_t buf_cnt;
 906
 907         fileio_t fileio;
 908
 909         duration_t duration;
 910         char *duration_text;
 911
 912         int retval, retvaltemp;
 913         flash_bank_t *p;
 914
 915         if (argc != 3)
 916         {
 917                 return ERROR_COMMAND_SYNTAX_ERROR;
 918         }
 919
 920         duration_start_measure(&duration);
 921
 922         offset = strtoul(args[2], NULL, 0);
 923         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 924         if (!p)
 925         {
 926                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 927                 return ERROR_OK;
 928         }
 929
 930         if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 931         {
 932                 return ERROR_OK;
 933         }
 934
 935         buffer = malloc(fileio.size);
 936         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
 937         {
 938                 free(buffer);
 939                 fileio_close(&fileio);
 940                 return ERROR_OK;
 941         }
 942
 943         retval = flash_driver_write(p, buffer, offset, buf_cnt);
 944
 945         free(buffer);
 946         buffer = NULL;
 947
 948         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 949         {
 950                 fileio_close(&fileio);
 951                 return retvaltemp;
 952         }
 953         if (retval == ERROR_OK)
 954         {
 955         command_print(cmd_ctx,
 956                                   "wrote  %lld byte from file %s to flash bank %li at offset 0x%8.8" PRIx32 " in %s (%f kb/s)",
 957                                   fileio.size,
 958                                   args[1],
 959                                   strtoul(args[0], NULL, 0),
 960                                   offset,
 961                                   duration_text,
 962                                   (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 963         }
 964         free(duration_text);
 965
 966         fileio_close(&fileio);
 967
 968         return retval;
 969 }
 970
 971 void flash_set_dirty(void)
 972 {
 973         flash_bank_t *c;
 974         int i;
 975
 976         /* set all flash to require erasing */
 977         for (c = flash_banks; c; c = c->next)
 978         {
 979                 for (i = 0; i < c->num_sectors; i++)
 980                 {
 981                         c->sectors[i].is_erased = 0;
 982                 }
 983         }
 984 }
 985
 986 /* lookup flash bank by address */
 987 flash_bank_t *get_flash_bank_by_addr(target_t *target, uint32_t addr)
 988 {
 989         flash_bank_t *c;
 990
 991         /* cycle through bank list */
 992         for (c = flash_banks; c; c = c->next)
 993         {
 994                 int retval;
 995                 retval = c->driver->auto_probe(c);
 996
 997                 if (retval != ERROR_OK)
 998                 {
 999                         LOG_ERROR("auto_probe failed %d\n", retval);
1000                         return NULL;
1001                 }
1002                 /* check whether address belongs to this flash bank */
1003                 if ((addr >= c->base) && (addr <= c->base + (c->size - 1)) && target == c->target)
1004                         return c;
1005         }
1006         LOG_ERROR("No flash at address 0x%08" PRIx32 "\n", addr);
1007         return NULL;
1008 }
1009
1010 /* erase given flash region, selects proper bank according to target and address */
1011 static int flash_iterate_address_range(target_t *target, uint32_t addr, uint32_t length,
1012                 int (*callback)(struct flash_bank_s *bank, int first, int last))
1013 {
1014         flash_bank_t *c;
1015         int first = -1;
1016         int last = -1;
1017         int i;
1018
1019         if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
1020                 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
1021
1022         if (c->size == 0 || c->num_sectors == 0)
1023         {
1024                 LOG_ERROR("Bank is invalid");
1025                 return ERROR_FLASH_BANK_INVALID;
1026         }
1027
1028         if (length == 0)
1029         {
1030                 /* special case, erase whole bank when length is zero */
1031                 if (addr != c->base)
1032                         return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
1033
1034                 return callback(c, 0, c->num_sectors - 1);
1035         }
1036
1037         /* check whether it fits */
1038         if (addr + length - 1 > c->base + c->size - 1)
1039                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
1040
1041         addr -= c->base;
1042
1043         for (i = 0; i < c->num_sectors; i++)
1044         {
1045                 /* check whether sector overlaps with the given range and is not yet erased */
1046                 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
1047                         /* if first is not set yet then this is the first sector */
1048                         if (first == -1)
1049                                 first = i;
1050                         last = i; /* and it is the last one so far in any case */
1051                 }
1052         }
1053
1054         if (first == -1 || last == -1)
1055                 return ERROR_OK;
1056
1057         return callback(c, first, last);
1058 }
1059
1060
1061
1062 int flash_erase_address_range(target_t *target, uint32_t addr, uint32_t length)
1063 {
1064         return flash_iterate_address_range(target, addr, length, &flash_driver_erase);
1065 }
1066
1067 static int flash_driver_unprotect(struct flash_bank_s *bank, int first, int last)
1068 {
1069         return flash_driver_protect(bank, 0, first, last);
1070 }
1071
1072 static int flash_unlock_address_range(target_t *target, uint32_t addr, uint32_t length)
1073 {
1074         return flash_iterate_address_range(target, addr, length, &flash_driver_unprotect);
1075 }
1076
1077
1078 /* write (optional verify) an image to flash memory of the given target */
1079 static int flash_write_unlock(target_t *target, image_t *image, uint32_t *written, int erase, bool unlock)
1080 {
1081         int retval = ERROR_OK;
1082
1083         int section;
1084         uint32_t section_offset;
1085         flash_bank_t *c;
1086         int *padding;
1087
1088         section = 0;
1089         section_offset = 0;
1090
1091         if (written)
1092                 *written = 0;
1093
1094         if (erase)
1095         {
1096                 /* assume all sectors need erasing - stops any problems
1097                  * when flash_write is called multiple times */
1098
1099                 flash_set_dirty();
1100         }
1101
1102         /* allocate padding array */
1103         padding = malloc(image->num_sections * sizeof(padding));
1104
1105         /* loop until we reach end of the image */
1106         while (section < image->num_sections)
1107         {
1108                 uint32_t buffer_size;
1109                 uint8_t *buffer;
1110                 int section_first;
1111                 int section_last;
1112                 uint32_t run_address = image->sections[section].base_address + section_offset;
1113                 uint32_t run_size = image->sections[section].size - section_offset;
1114                 int pad_bytes = 0;
1115
1116                 if (image->sections[section].size ==  0)
1117                 {
1118                         LOG_WARNING("empty section %d", section);
1119                         section++;
1120                         section_offset = 0;
1121                         continue;
1122                 }
1123
1124                 /* find the corresponding flash bank */
1125                 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
1126                 {
1127                         section++; /* and skip it */
1128                         section_offset = 0;
1129                         continue;
1130                 }
1131
1132                 /* collect consecutive sections which fall into the same bank */
1133                 section_first = section;
1134                 section_last = section;
1135                 padding[section] = 0;
1136                 while ((run_address + run_size - 1 < c->base + c->size - 1)
1137                                 && (section_last + 1 < image->num_sections))
1138                 {
1139                         if (image->sections[section_last + 1].base_address < (run_address + run_size))
1140                         {
1141                                 LOG_DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
1142                                 break;
1143                         }
1144                         /* if we have multiple sections within our image, flash programming could fail due to alignment issues
1145                          * attempt to rebuild a consecutive buffer for the flash loader */
1146                         pad_bytes = (image->sections[section_last + 1].base_address) - (run_address + run_size);
1147                         if ((run_address + run_size + pad_bytes) > (c->base + c->size))
1148                                 break;
1149                         padding[section_last] = pad_bytes;
1150                         run_size += image->sections[++section_last].size;
1151                         run_size += pad_bytes;
1152                         padding[section_last] = 0;
1153
1154                         LOG_INFO("Padding image section %d with %d bytes", section_last-1, pad_bytes);
1155                 }
1156
1157                 /* fit the run into bank constraints */
1158                 if (run_address + run_size - 1 > c->base + c->size - 1)
1159                 {
1160                         LOG_WARNING("writing %d bytes only - as image section is %d bytes and bank is only %d bytes", \
1161                                     (int)(c->base + c->size - run_address), (int)(run_size), (int)(c->size));
1162                         run_size = c->base + c->size - run_address;
1163                 }
1164
1165                 /* allocate buffer */
1166                 buffer = malloc(run_size);
1167                 buffer_size = 0;
1168
1169                 /* read sections to the buffer */
1170                 while (buffer_size < run_size)
1171                 {
1172                         uint32_t size_read;
1173
1174                         size_read = run_size - buffer_size;
1175                         if (size_read > image->sections[section].size - section_offset)
1176                             size_read = image->sections[section].size - section_offset;
1177
1178                         if ((retval = image_read_section(image, section, section_offset,
1179                                         size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
1180                         {
1181                                 free(buffer);
1182                                 free(padding);
1183                                 return retval;
1184                         }
1185
1186                         /* see if we need to pad the section */
1187                         while (padding[section]--)
1188                                  (buffer + buffer_size)[size_read++] = 0xff;
1189
1190                         buffer_size += size_read;
1191                         section_offset += size_read;
1192
1193                         if (section_offset >= image->sections[section].size)
1194                         {
1195                                 section++;
1196                                 section_offset = 0;
1197                         }
1198                 }
1199
1200                 retval = ERROR_OK;
1201
1202                 if (unlock)
1203                 {
1204                         retval = flash_unlock_address_range(target, run_address, run_size);
1205                 }
1206                 if (retval == ERROR_OK)
1207                 {
1208                         if (erase)
1209                         {
1210                                 /* calculate and erase sectors */
1211                                 retval = flash_erase_address_range(target, run_address, run_size);
1212                         }
1213                 }
1214
1215                 if (retval == ERROR_OK)
1216                 {
1217                         /* write flash sectors */
1218                         retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
1219                 }
1220
1221                 free(buffer);
1222
1223                 if (retval != ERROR_OK)
1224                 {
1225                         free(padding);
1226                         return retval; /* abort operation */
1227                 }
1228
1229                 if (written != NULL)
1230                         *written += run_size; /* add run size to total written counter */
1231         }
1232
1233         free(padding);
1234
1235         return retval;
1236 }
1237
1238 int flash_write(target_t *target, image_t *image, uint32_t *written, int erase)
1239 {
1240         return flash_write_unlock(target, image, written, erase, false);
1241 }
1242
1243 int default_flash_mem_blank_check(struct flash_bank_s *bank)
1244 {
1245         target_t *target = bank->target;
1246         uint8_t buffer[1024];
1247         int buffer_size = sizeof(buffer);
1248         int i;
1249         uint32_t nBytes;
1250
1251         if (bank->target->state != TARGET_HALTED)
1252         {
1253                 LOG_ERROR("Target not halted");
1254                 return ERROR_TARGET_NOT_HALTED;
1255         }
1256
1257         for (i = 0; i < bank->num_sectors; i++)
1258         {
1259                 uint32_t j;
1260                 bank->sectors[i].is_erased = 1;
1261
1262                 for (j = 0; j < bank->sectors[i].size; j += buffer_size)
1263                 {
1264                         uint32_t chunk;
1265                         int retval;
1266                         chunk = buffer_size;
1267                         if (chunk > (j - bank->sectors[i].size))
1268                         {
1269                                 chunk = (j - bank->sectors[i].size);
1270                         }
1271
1272                         retval = target_read_memory(target, bank->base + bank->sectors[i].offset + j, 4, chunk/4, buffer);
1273                         if (retval != ERROR_OK)
1274                                 return retval;
1275
1276                         for (nBytes = 0; nBytes < chunk; nBytes++)
1277                         {
1278                                 if (buffer[nBytes] != 0xFF)
1279                                 {
1280                                         bank->sectors[i].is_erased = 0;
1281                                         break;
1282                                 }
1283                         }
1284                 }
1285         }
1286
1287         return ERROR_OK;
1288 }
1289
1290 int default_flash_blank_check(struct flash_bank_s *bank)
1291 {
1292         target_t *target = bank->target;
1293         int i;
1294         int retval;
1295         int fast_check = 0;
1296         uint32_t blank;
1297
1298         if (bank->target->state != TARGET_HALTED)
1299         {
1300                 LOG_ERROR("Target not halted");
1301                 return ERROR_TARGET_NOT_HALTED;
1302         }
1303
1304         for (i = 0; i < bank->num_sectors; i++)
1305         {
1306                 uint32_t address = bank->base + bank->sectors[i].offset;
1307                 uint32_t size = bank->sectors[i].size;
1308
1309                 if ((retval = target_blank_check_memory(target, address, size, &blank)) != ERROR_OK)
1310                 {
1311                         fast_check = 0;
1312                         break;
1313                 }
1314                 if (blank == 0xFF)
1315                         bank->sectors[i].is_erased = 1;
1316                 else
1317                         bank->sectors[i].is_erased = 0;
1318                 fast_check = 1;
1319         }
1320
1321         if (!fast_check)
1322         {
1323                 LOG_USER("Running slow fallback erase check - add working memory");
1324                 return default_flash_mem_blank_check(bank);
1325         }
1326
1327         return ERROR_OK;
1328 }