src/flash/flash.c

   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
  47 /* flash drivers
  48  */
  49 extern flash_driver_t lpc2000_flash;
  50 extern flash_driver_t cfi_flash;
  51 extern flash_driver_t at91sam7_flash;
  52 extern flash_driver_t str7x_flash;
  53 extern flash_driver_t str9x_flash;
  54 extern flash_driver_t aduc702x_flash;
  55 extern flash_driver_t stellaris_flash;
  56 extern flash_driver_t str9xpec_flash;
  57 extern flash_driver_t stm32x_flash;
  58 extern flash_driver_t tms470_flash;
  59 extern flash_driver_t ecosflash_flash;
  60 extern flash_driver_t lpc288x_flash;
  61 extern flash_driver_t ocl_flash;
  62 extern flash_driver_t pic32mx_flash;
  63 extern flash_driver_t avr_flash;
  64
  65 flash_driver_t *flash_drivers[] = {
  66         &lpc2000_flash,
  67         &cfi_flash,
  68         &at91sam7_flash,
  69         &str7x_flash,
  70         &str9x_flash,
  71         &aduc702x_flash,
  72         &stellaris_flash,
  73         &str9xpec_flash,
  74         &stm32x_flash,
  75         &tms470_flash,
  76         &ecosflash_flash,
  77         &lpc288x_flash,
  78         &ocl_flash,
  79         &pic32mx_flash,
  80         &avr_flash,
  81         NULL,
  82 };
  83
  84 flash_bank_t *flash_banks;
  85 static  command_t *flash_cmd;
  86
  87 /* wafer thin wrapper for invoking the flash driver */
  88 static int flash_driver_write(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
  89 {
  90         int retval;
  91
  92         retval = bank->driver->write(bank, buffer, offset, count);
  93         if (retval != ERROR_OK)
  94         {
  95                 LOG_ERROR("error writing to flash at address 0x%08" PRIx32 " at offset 0x%8.8" PRIx32 " (%d)",
  96                           bank->base, offset, retval);
  97         }
  98
  99         return retval;
 100 }
 101
 102 static int flash_driver_erase(struct flash_bank_s *bank, int first, int last)
 103 {
 104         int retval;
 105
 106         retval = bank->driver->erase(bank, first, last);
 107         if (retval != ERROR_OK)
 108         {
 109                 LOG_ERROR("failed erasing sectors %d to %d (%d)", first, last, retval);
 110         }
 111
 112         return retval;
 113 }
 114
 115 int flash_driver_protect(struct flash_bank_s *bank, int set, int first, int last)
 116 {
 117         int retval;
 118
 119         retval = bank->driver->protect(bank, set, first, last);
 120         if (retval != ERROR_OK)
 121         {
 122                 LOG_ERROR("failed setting protection for areas %d to %d (%d)", first, last, retval);
 123         }
 124
 125         return retval;
 126 }
 127
 128 int flash_register_commands(struct command_context_s *cmd_ctx)
 129 {
 130         flash_cmd = register_command(cmd_ctx, NULL, "flash", NULL, COMMAND_ANY, NULL);
 131
 132         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 ...]");
 133         return ERROR_OK;
 134 }
 135
 136 static int jim_flash_banks(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 137 {
 138         flash_bank_t *p;
 139
 140         if (argc != 1) {
 141                 Jim_WrongNumArgs(interp, 1, argv, "no arguments to flash_banks command");
 142                 return JIM_ERR;
 143         }
 144
 145         Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
 146         for (p = flash_banks; p; p = p->next)
 147         {
 148                 Jim_Obj *elem = Jim_NewListObj(interp, NULL, 0);
 149
 150                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "name", -1));
 151                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, p->driver->name, -1));
 152                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "base", -1));
 153                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->base));
 154                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "size", -1));
 155                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->size));
 156                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "bus_width", -1));
 157                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->bus_width));
 158                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "chip_width", -1));
 159                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->chip_width));
 160
 161                 Jim_ListAppendElement(interp, list, elem);
 162         }
 163
 164         Jim_SetResult(interp, list);
 165
 166         return JIM_OK;
 167 }
 168
 169 int flash_init_drivers(struct command_context_s *cmd_ctx)
 170 {
 171         register_jim(cmd_ctx, "ocd_flash_banks", jim_flash_banks, "return information about the flash banks");
 172
 173         if (flash_banks)
 174         {
 175                 register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
 176                                                  "print info about flash bank <num>");
 177                 register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
 178                                                  "identify flash bank <num>");
 179                 register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
 180                                                  "check erase state of sectors in flash bank <num>");
 181                 register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
 182                                                  "check protection state of sectors in flash bank <num>");
 183                 register_command(cmd_ctx, flash_cmd, "erase_sector", handle_flash_erase_command, COMMAND_EXEC,
 184                                                  "erase sectors at <bank> <first> <last>");
 185                 register_command(cmd_ctx, flash_cmd, "erase_address", handle_flash_erase_address_command, COMMAND_EXEC,
 186                                                  "erase address range <address> <length>");
 187
 188                 register_command(cmd_ctx, flash_cmd, "fillw", handle_flash_fill_command, COMMAND_EXEC,
 189                                                  "fill with pattern (no autoerase) <address> <word_pattern> <count>");
 190                 register_command(cmd_ctx, flash_cmd, "fillh", handle_flash_fill_command, COMMAND_EXEC,
 191                                                  "fill with pattern <address> <halfword_pattern> <count>");
 192                 register_command(cmd_ctx, flash_cmd, "fillb", handle_flash_fill_command, COMMAND_EXEC,
 193                                                  "fill with pattern <address> <byte_pattern> <count>");
 194
 195                 register_command(cmd_ctx, flash_cmd, "write_bank", handle_flash_write_bank_command, COMMAND_EXEC,
 196                                                  "write binary data to <bank> <file> <offset>");
 197                 register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
 198                                                  "write_image [erase] <file> [offset] [type]");
 199                 register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
 200                                                  "set protection of sectors at <bank> <first> <last> <on|off>");
 201         }
 202
 203         return ERROR_OK;
 204 }
 205
 206 flash_bank_t *get_flash_bank_by_num_noprobe(int num)
 207 {
 208         flash_bank_t *p;
 209         int i = 0;
 210
 211         for (p = flash_banks; p; p = p->next)
 212         {
 213                 if (i++ == num)
 214                 {
 215                         return p;
 216                 }
 217         }
 218         LOG_ERROR("flash bank %d does not exist", num);
 219         return NULL;
 220 }
 221
 222 int flash_get_bank_count(void)
 223 {
 224         flash_bank_t *p;
 225         int i = 0;
 226         for (p = flash_banks; p; p = p->next)
 227         {
 228                 i++;
 229         }
 230         return i;
 231 }
 232
 233 flash_bank_t *get_flash_bank_by_num(int num)
 234 {
 235         flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
 236         int retval;
 237
 238         if (p == NULL)
 239                 return NULL;
 240
 241         retval = p->driver->auto_probe(p);
 242
 243         if (retval != ERROR_OK)
 244         {
 245                 LOG_ERROR("auto_probe failed %d\n", retval);
 246                 return NULL;
 247         }
 248         return p;
 249 }
 250
 251 static int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 252 {
 253         int retval;
 254         int i;
 255         int found = 0;
 256         target_t *target;
 257
 258         if (argc < 6)
 259         {
 260                 return ERROR_COMMAND_SYNTAX_ERROR;
 261         }
 262
 263         if ((target = get_target(args[5])) == NULL)
 264         {
 265                 LOG_ERROR("target '%s' not defined", args[5]);
 266                 return ERROR_FAIL;
 267         }
 268
 269         for (i = 0; flash_drivers[i]; i++)
 270         {
 271                 if (strcmp(args[0], flash_drivers[i]->name) == 0)
 272                 {
 273                         flash_bank_t *p, *c;
 274
 275                         /* register flash specific commands */
 276                         if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 277                         {
 278                                 LOG_ERROR("couldn't register '%s' commands", args[0]);
 279                                 return ERROR_FAIL;
 280                         }
 281
 282                         c = malloc(sizeof(flash_bank_t));
 283                         c->target = target;
 284                         c->driver = flash_drivers[i];
 285                         c->driver_priv = NULL;
 286                         c->base = strtoul(args[1], NULL, 0);
 287                         c->size = strtoul(args[2], NULL, 0);
 288                         c->chip_width = strtoul(args[3], NULL, 0);
 289                         c->bus_width = strtoul(args[4], NULL, 0);
 290                         c->num_sectors = 0;
 291                         c->sectors = NULL;
 292                         c->next = NULL;
 293
 294                         if ((retval = flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c)) != ERROR_OK)
 295                         {
 296                                 LOG_ERROR("'%s' driver rejected flash bank at 0x%8.8" PRIx32 , args[0], c->base);
 297                                 free(c);
 298                                 return retval;
 299                         }
 300
 301                         /* put flash bank in linked list */
 302                         if (flash_banks)
 303                         {
 304                                 int     bank_num = 0;
 305                                 /* find last flash bank */
 306                                 for (p = flash_banks; p && p->next; p = p->next) bank_num++;
 307                                 if (p)
 308                                         p->next = c;
 309                                 c->bank_number = bank_num + 1;
 310                         }
 311                         else
 312                         {
 313                                 flash_banks = c;
 314                                 c->bank_number = 0;
 315                         }
 316
 317                         found = 1;
 318                 }
 319         }
 320
 321         /* no matching flash driver found */
 322         if (!found)
 323         {
 324                 LOG_ERROR("flash driver '%s' not found", args[0]);
 325                 return ERROR_FAIL;
 326         }
 327
 328         return ERROR_OK;
 329 }
 330
 331 static int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 332 {
 333         flash_bank_t *p;
 334         uint32_t i = 0;
 335         int j = 0;
 336         int retval;
 337
 338         if (argc != 1)
 339         {
 340                 return ERROR_COMMAND_SYNTAX_ERROR;
 341         }
 342
 343         for (p = flash_banks; p; p = p->next, i++)
 344         {
 345                 if (i == strtoul(args[0], NULL, 0))
 346                 {
 347                         char buf[1024];
 348
 349                         /* attempt auto probe */
 350                         if ((retval = p->driver->auto_probe(p)) != ERROR_OK)
 351                                 return retval;
 352
 353                         command_print(cmd_ctx,
 354                                       "#%" PRIi32 " : %s at 0x%8.8" PRIx32 ", size 0x%8.8" PRIx32 ", buswidth %i, chipwidth %i",
 355                                       i,
 356                                       p->driver->name,
 357                                       p->base,
 358                                       p->size,
 359                                       p->bus_width,
 360                                       p->chip_width);
 361                         for (j = 0; j < p->num_sectors; j++)
 362                         {
 363                                 char *protect_state;
 364
 365                                 if (p->sectors[j].is_protected == 0)
 366                                         protect_state = "not protected";
 367                                 else if (p->sectors[j].is_protected == 1)
 368                                         protect_state = "protected";
 369                                 else
 370                                         protect_state = "protection state unknown";
 371
 372                                 command_print(cmd_ctx,
 373                                               "\t#%3i: 0x%8.8" PRIx32 " (0x%" PRIx32 " %" PRIi32 "kB) %s",
 374                                               j,
 375                                               p->sectors[j].offset,
 376                                               p->sectors[j].size,
 377                                               p->sectors[j].size >> 10,
 378                                               protect_state);
 379                         }
 380
 381                         *buf = '\0'; /* initialize buffer, otherwise it migh contain garbage if driver function fails */
 382                         retval = p->driver->info(p, buf, sizeof(buf));
 383                         command_print(cmd_ctx, "%s", buf);
 384                         if (retval != ERROR_OK)
 385                                 LOG_ERROR("error retrieving flash info (%d)", retval);
 386                 }
 387         }
 388
 389         return ERROR_OK;
 390 }
 391
 392 static int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 393 {
 394         flash_bank_t *p;
 395         int retval;
 396
 397         if (argc != 1)
 398         {
 399                 return ERROR_COMMAND_SYNTAX_ERROR;
 400         }
 401
 402         p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
 403         if (p)
 404         {
 405                 if ((retval = p->driver->probe(p)) == ERROR_OK)
 406                 {
 407                         command_print(cmd_ctx, "flash '%s' found at 0x%8.8" PRIx32, p->driver->name, p->base);
 408                 }
 409                 else if (retval == ERROR_FLASH_BANK_INVALID)
 410                 {
 411                         command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8" PRIx32,
 412                                                   args[0], p->base);
 413                 }
 414                 else
 415                 {
 416                         command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8" PRIx32,
 417                                                   args[0], p->base);
 418                 }
 419         }
 420         else
 421         {
 422                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 423         }
 424
 425         return ERROR_OK;
 426 }
 427
 428 static int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 429 {
 430         flash_bank_t *p;
 431         int retval;
 432
 433         if (argc != 1)
 434         {
 435                 return ERROR_COMMAND_SYNTAX_ERROR;
 436         }
 437
 438         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 439         if (p)
 440         {
 441                 int j;
 442                 if ((retval = p->driver->erase_check(p)) == ERROR_OK)
 443                 {
 444                         command_print(cmd_ctx, "successfully checked erase state");
 445                 }
 446                 else
 447                 {
 448                         command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8" PRIx32,
 449                                 args[0], p->base);
 450                 }
 451
 452                 for (j = 0; j < p->num_sectors; j++)
 453                 {
 454                         char *erase_state;
 455
 456                         if (p->sectors[j].is_erased == 0)
 457                                 erase_state = "not erased";
 458                         else if (p->sectors[j].is_erased == 1)
 459                                 erase_state = "erased";
 460                         else
 461                                 erase_state = "erase state unknown";
 462
 463                         command_print(cmd_ctx,
 464                                       "\t#%3i: 0x%8.8" PRIx32 " (0x%" PRIx32 " %" PRIi32 "kB) %s",
 465                                       j,
 466                                       p->sectors[j].offset,
 467                                       p->sectors[j].size,
 468                                       p->sectors[j].size >> 10,
 469                                       erase_state);
 470                 }
 471         }
 472
 473         return ERROR_OK;
 474 }
 475
 476 static int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 477 {
 478         flash_bank_t *p;
 479         int retval;
 480         int address;
 481         int length;
 482         duration_t duration;
 483         char *duration_text;
 484
 485         target_t *target = get_current_target(cmd_ctx);
 486
 487         if (argc != 2)
 488         {
 489                 return ERROR_COMMAND_SYNTAX_ERROR;
 490         }
 491
 492         address = strtoul(args[0], NULL, 0);
 493         length = strtoul(args[1], NULL, 0);
 494         if (length <= 0)
 495         {
 496                 command_print(cmd_ctx, "Length must be >0");
 497                 return ERROR_COMMAND_SYNTAX_ERROR;
 498         }
 499
 500         p = get_flash_bank_by_addr(target, address);
 501         if (p == NULL)
 502         {
 503                 return ERROR_FAIL;
 504         }
 505
 506         /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
 507         flash_set_dirty();
 508
 509         duration_start_measure(&duration);
 510
 511         if ((retval = flash_erase_address_range(target, address, length)) == ERROR_OK)
 512         {
 513                 if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 514                 {
 515                         return retval;
 516                 }
 517                 command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
 518                 free(duration_text);
 519         }
 520
 521         return retval;
 522 }
 523
 524 static int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 525 {
 526         flash_bank_t *p;
 527         int retval;
 528
 529         if (argc != 1)
 530         {
 531                 return ERROR_COMMAND_SYNTAX_ERROR;
 532         }
 533
 534         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 535         if (p)
 536         {
 537                 if ((retval = p->driver->protect_check(p)) == ERROR_OK)
 538                 {
 539                         command_print(cmd_ctx, "successfully checked protect state");
 540                 }
 541                 else if (retval == ERROR_FLASH_OPERATION_FAILED)
 542                 {
 543                         command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8" PRIx32, args[0], p->base);
 544                 }
 545                 else
 546                 {
 547                         command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8" PRIx32, args[0], p->base);
 548                 }
 549         }
 550         else
 551         {
 552                 return ERROR_COMMAND_SYNTAX_ERROR;
 553         }
 554
 555         return ERROR_OK;
 556 }
 557
 558 static int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 559 {
 560         if (argc > 2)
 561         {
 562                 int first = strtoul(args[1], NULL, 0);
 563                 int last = strtoul(args[2], NULL, 0);
 564                 int retval;
 565                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 566                 duration_t duration;
 567                 char *duration_text;
 568
 569                 duration_start_measure(&duration);
 570
 571                 if (!p)
 572                 {
 573                         return ERROR_COMMAND_SYNTAX_ERROR;
 574                 }
 575
 576                 if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK)
 577                 {
 578                         if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 579                         {
 580                                 return retval;
 581                         }
 582
 583                         command_print(cmd_ctx, "erased sectors %i through %i on flash bank %li in %s",
 584                                 first, last, strtoul(args[0], 0, 0), duration_text);
 585                         free(duration_text);
 586                 }
 587         }
 588         else
 589         {
 590                 return ERROR_COMMAND_SYNTAX_ERROR;
 591         }
 592
 593         return ERROR_OK;
 594 }
 595
 596 static int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 597 {
 598         if (argc > 3)
 599         {
 600                 int first = strtoul(args[1], NULL, 0);
 601                 int last = strtoul(args[2], NULL, 0);
 602                 int set;
 603                 int retval;
 604                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 605                 if (!p)
 606                 {
 607                         command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 608                         return ERROR_OK;
 609                 }
 610
 611                 if (strcmp(args[3], "on") == 0)
 612                         set = 1;
 613                 else if (strcmp(args[3], "off") == 0)
 614                         set = 0;
 615                 else
 616                 {
 617                         return ERROR_COMMAND_SYNTAX_ERROR;
 618                 }
 619
 620                 retval = flash_driver_protect(p, set, first, last);
 621                 if (retval == ERROR_OK)
 622                 {
 623                         command_print(cmd_ctx, "%s protection for sectors %i through %i on flash bank %li",
 624                                 (set) ? "set" : "cleared", first,
 625                                 last, strtoul(args[0], 0, 0));
 626                 }
 627         }
 628         else
 629         {
 630                 return ERROR_COMMAND_SYNTAX_ERROR;
 631
 632         }
 633
 634         return ERROR_OK;
 635 }
 636
 637 static int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 638 {
 639         target_t *target = get_current_target(cmd_ctx);
 640
 641         image_t image;
 642         uint32_t written;
 643
 644         duration_t duration;
 645         char *duration_text;
 646
 647         int retval, retvaltemp;
 648
 649         if (argc < 1)
 650         {
 651                 return ERROR_COMMAND_SYNTAX_ERROR;
 652         }
 653
 654         /* flash auto-erase is disabled by default*/
 655         int auto_erase = 0;
 656
 657         if (strcmp(args[0], "erase") == 0)
 658         {
 659                 auto_erase = 1;
 660                 args++;
 661                 argc--;
 662                 command_print(cmd_ctx, "auto erase enabled");
 663         }
 664
 665         if (argc < 1)
 666         {
 667                 return ERROR_COMMAND_SYNTAX_ERROR;
 668         }
 669
 670         if (!target)
 671         {
 672                 LOG_ERROR("no target selected");
 673                 return ERROR_FAIL;
 674         }
 675
 676         duration_start_measure(&duration);
 677
 678         if (argc >= 2)
 679         {
 680                 image.base_address_set = 1;
 681                 image.base_address = strtoul(args[1], NULL, 0);
 682         }
 683         else
 684         {
 685                 image.base_address_set = 0;
 686                 image.base_address = 0x0;
 687         }
 688
 689         image.start_address_set = 0;
 690
 691         retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
 692         if (retval != ERROR_OK)
 693         {
 694                 return retval;
 695         }
 696
 697         retval = flash_write(target, &image, &written, auto_erase);
 698         if (retval != ERROR_OK)
 699         {
 700                 image_close(&image);
 701                 return retval;
 702         }
 703
 704         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 705         {
 706                 image_close(&image);
 707                 return retvaltemp;
 708         }
 709         if (retval == ERROR_OK)
 710         {
 711                 command_print(cmd_ctx,
 712                                           "wrote %" PRIu32 " byte from file %s in %s (%f kb/s)",
 713                                           written,
 714                                           args[0],
 715                                           duration_text,
 716                                           (float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 717         }
 718         free(duration_text);
 719
 720         image_close(&image);
 721
 722         return retval;
 723 }
 724
 725 static int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 726 {
 727         int err = ERROR_OK, retval;
 728         uint32_t address;
 729         uint32_t pattern;
 730         uint32_t count;
 731         uint8_t chunk[1024];
 732         uint8_t readback[1024];
 733         uint32_t wrote = 0;
 734         uint32_t cur_size = 0;
 735         uint32_t chunk_count;
 736         char *duration_text;
 737         duration_t duration;
 738         target_t *target = get_current_target(cmd_ctx);
 739         uint32_t i;
 740         uint32_t wordsize;
 741
 742         if (argc != 3)
 743         {
 744                 return ERROR_COMMAND_SYNTAX_ERROR;
 745         }
 746
 747         address = strtoul(args[0], NULL, 0);
 748         pattern = strtoul(args[1], NULL, 0);
 749         count   = strtoul(args[2], NULL, 0);
 750
 751         if (count == 0)
 752                 return ERROR_OK;
 753
 754         switch (cmd[4])
 755         {
 756         case 'w':
 757                 wordsize = 4;
 758                 break;
 759         case 'h':
 760                 wordsize = 2;
 761                 break;
 762         case 'b':
 763                 wordsize = 1;
 764                 break;
 765         default:
 766                 return ERROR_COMMAND_SYNTAX_ERROR;
 767         }
 768
 769         chunk_count = MIN(count, (1024 / wordsize));
 770         switch (wordsize)
 771         {
 772         case 4:
 773                 for (i = 0; i < chunk_count; i++)
 774                 {
 775                         target_buffer_set_u32(target, chunk + i * wordsize, pattern);
 776                 }
 777                 break;
 778         case 2:
 779                 for (i = 0; i < chunk_count; i++)
 780                 {
 781                         target_buffer_set_u16(target, chunk + i * wordsize, pattern);
 782                 }
 783                 break;
 784         case 1:
 785                 memset(chunk, pattern, chunk_count);
 786                 break;
 787         default:
 788                 LOG_ERROR("BUG: can't happen");
 789                 exit(-1);
 790         }
 791
 792         duration_start_measure(&duration);
 793
 794         for (wrote = 0; wrote<(count*wordsize); wrote += cur_size)
 795         {
 796                 cur_size = MIN( (count*wordsize - wrote), sizeof(chunk) );
 797                 flash_bank_t *bank;
 798                 bank = get_flash_bank_by_addr(target, address);
 799                 if (bank == NULL)
 800                 {
 801                         return ERROR_FAIL;
 802                 }
 803                 err = flash_driver_write(bank, chunk, address - bank->base + wrote, cur_size);
 804                 if (err != ERROR_OK)
 805                         return err;
 806
 807                 err = target_read_buffer(target, address + wrote, cur_size, readback);
 808                 if (err != ERROR_OK)
 809                         return err;
 810
 811                 unsigned i;
 812                 for (i = 0; i<cur_size; i++)
 813                 {
 814                         if (readback[i]!=chunk[i])
 815                         {
 816                                 LOG_ERROR("Verfication error address 0x%08" PRIx32 ", read back 0x%02x, expected 0x%02x",
 817                                                   address + wrote + i, readback[i], chunk[i]);
 818                                 return ERROR_FAIL;
 819                         }
 820                 }
 821
 822         }
 823
 824         if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 825         {
 826                 return retval;
 827         }
 828
 829         if (err == ERROR_OK)
 830         {
 831                 float speed;
 832                 speed = wrote / 1024.0;
 833                 speed/=((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0));
 834                 command_print(cmd_ctx,
 835                                           "wrote %" PRId32 " bytes to 0x%8.8" PRIx32 " in %s (%f kb/s)",
 836                                           count*wordsize,
 837                                           address,
 838                                           duration_text,
 839                                           speed);
 840         }
 841         free(duration_text);
 842         return ERROR_OK;
 843 }
 844
 845 static int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 846 {
 847         uint32_t offset;
 848         uint8_t *buffer;
 849         uint32_t buf_cnt;
 850
 851         fileio_t fileio;
 852
 853         duration_t duration;
 854         char *duration_text;
 855
 856         int retval, retvaltemp;
 857         flash_bank_t *p;
 858
 859         if (argc != 3)
 860         {
 861                 return ERROR_COMMAND_SYNTAX_ERROR;
 862         }
 863
 864         duration_start_measure(&duration);
 865
 866         offset = strtoul(args[2], NULL, 0);
 867         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 868         if (!p)
 869         {
 870                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 871                 return ERROR_OK;
 872         }
 873
 874         if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 875         {
 876                 return ERROR_OK;
 877         }
 878
 879         buffer = malloc(fileio.size);
 880         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
 881         {
 882                 free(buffer);
 883                 fileio_close(&fileio);
 884                 return ERROR_OK;
 885         }
 886
 887         retval = flash_driver_write(p, buffer, offset, buf_cnt);
 888
 889         free(buffer);
 890         buffer = NULL;
 891
 892         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 893         {
 894                 fileio_close(&fileio);
 895                 return retvaltemp;
 896         }
 897         if (retval == ERROR_OK)
 898         {
 899         command_print(cmd_ctx,
 900                                   "wrote  %lld byte from file %s to flash bank %li at offset 0x%8.8" PRIx32 " in %s (%f kb/s)",
 901                                   fileio.size,
 902                                   args[1],
 903                                   strtoul(args[0], NULL, 0),
 904                                   offset,
 905                                   duration_text,
 906                                   (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 907         }
 908         free(duration_text);
 909
 910         fileio_close(&fileio);
 911
 912         return retval;
 913 }
 914
 915 void flash_set_dirty(void)
 916 {
 917         flash_bank_t *c;
 918         int i;
 919
 920         /* set all flash to require erasing */
 921         for (c = flash_banks; c; c = c->next)
 922         {
 923                 for (i = 0; i < c->num_sectors; i++)
 924                 {
 925                         c->sectors[i].is_erased = 0;
 926                 }
 927         }
 928 }
 929
 930 /* lookup flash bank by address */
 931 flash_bank_t *get_flash_bank_by_addr(target_t *target, uint32_t addr)
 932 {
 933         flash_bank_t *c;
 934
 935         /* cycle through bank list */
 936         for (c = flash_banks; c; c = c->next)
 937         {
 938                 int retval;
 939                 retval = c->driver->auto_probe(c);
 940
 941                 if (retval != ERROR_OK)
 942                 {
 943                         LOG_ERROR("auto_probe failed %d\n", retval);
 944                         return NULL;
 945                 }
 946                 /* check whether address belongs to this flash bank */
 947                 if ((addr >= c->base) && (addr <= c->base + (c->size - 1)) && target == c->target)
 948                         return c;
 949         }
 950         LOG_ERROR("No flash at address 0x%08" PRIx32 "\n", addr);
 951         return NULL;
 952 }
 953
 954 /* erase given flash region, selects proper bank according to target and address */
 955 int flash_erase_address_range(target_t *target, uint32_t addr, uint32_t length)
 956 {
 957         flash_bank_t *c;
 958         int first = -1;
 959         int last = -1;
 960         int i;
 961
 962         if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
 963                 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
 964
 965         if (c->size == 0 || c->num_sectors == 0)
 966         {
 967                 LOG_ERROR("Bank is invalid");
 968                 return ERROR_FLASH_BANK_INVALID;
 969         }
 970
 971         if (length == 0)
 972         {
 973                 /* special case, erase whole bank when length is zero */
 974                 if (addr != c->base)
 975                         return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 976
 977                 return flash_driver_erase(c, 0, c->num_sectors - 1);
 978         }
 979
 980         /* check whether it fits */
 981         if (addr + length - 1 > c->base + c->size - 1)
 982                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 983
 984         addr -= c->base;
 985
 986         for (i = 0; i < c->num_sectors; i++)
 987         {
 988                 /* check whether sector overlaps with the given range and is not yet erased */
 989                 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
 990                         /* if first is not set yet then this is the first sector */
 991                         if (first == -1)
 992                                 first = i;
 993                         last = i; /* and it is the last one so far in any case */
 994                 }
 995         }
 996
 997         if ( first == -1 || last == -1 )
 998                 return ERROR_OK;
 999
1000         return flash_driver_erase(c, first, last);
1001 }
1002
1003 /* write (optional verify) an image to flash memory of the given target */
1004 int flash_write(target_t *target, image_t *image, uint32_t *written, int erase)
1005 {
1006         int retval = ERROR_OK;
1007
1008         int section;
1009         uint32_t section_offset;
1010         flash_bank_t *c;
1011         int *padding;
1012
1013         section = 0;
1014         section_offset = 0;
1015
1016         if (written)
1017                 *written = 0;
1018
1019         if (erase)
1020         {
1021                 /* assume all sectors need erasing - stops any problems
1022                  * when flash_write is called multiple times */
1023
1024                 flash_set_dirty();
1025         }
1026
1027         /* allocate padding array */
1028         padding = malloc(image->num_sections * sizeof(padding));
1029
1030         /* loop until we reach end of the image */
1031         while (section < image->num_sections)
1032         {
1033                 uint32_t buffer_size;
1034                 uint8_t *buffer;
1035                 int section_first;
1036                 int section_last;
1037                 uint32_t run_address = image->sections[section].base_address + section_offset;
1038                 uint32_t run_size = image->sections[section].size - section_offset;
1039                 int pad_bytes = 0;
1040
1041                 if (image->sections[section].size ==  0)
1042                 {
1043                         LOG_WARNING("empty section %d", section);
1044                         section++;
1045                         section_offset = 0;
1046                         continue;
1047                 }
1048
1049                 /* find the corresponding flash bank */
1050                 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
1051                 {
1052                         section++; /* and skip it */
1053                         section_offset = 0;
1054                         continue;
1055                 }
1056
1057                 /* collect consecutive sections which fall into the same bank */
1058                 section_first = section;
1059                 section_last = section;
1060                 padding[section] = 0;
1061                 while ((run_address + run_size - 1 < c->base + c->size - 1)
1062                                 && (section_last + 1 < image->num_sections))
1063                 {
1064                         if (image->sections[section_last + 1].base_address < (run_address + run_size))
1065                         {
1066                                 LOG_DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
1067                                 break;
1068                         }
1069                         /* if we have multiple sections within our image, flash programming could fail due to alignment issues
1070                          * attempt to rebuild a consecutive buffer for the flash loader */
1071                         pad_bytes = (image->sections[section_last + 1].base_address) - (run_address + run_size);
1072                         if ((run_address + run_size + pad_bytes) > (c->base + c->size))
1073                                 break;
1074                         padding[section_last] = pad_bytes;
1075                         run_size += image->sections[++section_last].size;
1076                         run_size += pad_bytes;
1077                         padding[section_last] = 0;
1078
1079                         LOG_INFO("Padding image section %d with %d bytes", section_last-1, pad_bytes );
1080                 }
1081
1082                 /* fit the run into bank constraints */
1083                 if (run_address + run_size - 1 > c->base + c->size - 1)
1084                 {
1085                         LOG_WARNING("writing %d bytes only - as image section is %d bytes and bank is only %d bytes", \
1086                                     (int)(c->base + c->size - run_address), (int)(run_size), (int)(c->size));
1087                         run_size = c->base + c->size - run_address;
1088                 }
1089
1090                 /* allocate buffer */
1091                 buffer = malloc(run_size);
1092                 buffer_size = 0;
1093
1094                 /* read sections to the buffer */
1095                 while (buffer_size < run_size)
1096                 {
1097                         uint32_t size_read;
1098
1099                         size_read = run_size - buffer_size;
1100                         if (size_read > image->sections[section].size - section_offset)
1101                             size_read = image->sections[section].size - section_offset;
1102
1103                         if ((retval = image_read_section(image, section, section_offset,
1104                                         size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
1105                         {
1106                                 free(buffer);
1107                                 free(padding);
1108                                 return retval;
1109                         }
1110
1111                         /* see if we need to pad the section */
1112                         while (padding[section]--)
1113                                  (buffer+buffer_size)[size_read++] = 0xff;
1114
1115                         buffer_size += size_read;
1116                         section_offset += size_read;
1117
1118                         if (section_offset >= image->sections[section].size)
1119                         {
1120                                 section++;
1121                                 section_offset = 0;
1122                         }
1123                 }
1124
1125                 retval = ERROR_OK;
1126
1127                 if (erase)
1128                 {
1129                         /* calculate and erase sectors */
1130                         retval = flash_erase_address_range( target, run_address, run_size );
1131                 }
1132
1133                 if (retval == ERROR_OK)
1134                 {
1135                         /* write flash sectors */
1136                         retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
1137                 }
1138
1139                 free(buffer);
1140
1141                 if (retval != ERROR_OK)
1142                 {
1143                         free(padding);
1144                         return retval; /* abort operation */
1145                 }
1146
1147                 if (written != NULL)
1148                         *written += run_size; /* add run size to total written counter */
1149         }
1150
1151         free(padding);
1152
1153         return retval;
1154 }
1155
1156 int default_flash_mem_blank_check(struct flash_bank_s *bank)
1157 {
1158         target_t *target = bank->target;
1159         uint8_t buffer[1024];
1160         int buffer_size = sizeof(buffer);
1161         int i;
1162         uint32_t nBytes;
1163
1164         if (bank->target->state != TARGET_HALTED)
1165         {
1166                 LOG_ERROR("Target not halted");
1167                 return ERROR_TARGET_NOT_HALTED;
1168         }
1169
1170         for (i = 0; i < bank->num_sectors; i++)
1171         {
1172                 uint32_t j;
1173                 bank->sectors[i].is_erased = 1;
1174
1175                 for (j = 0; j < bank->sectors[i].size; j += buffer_size)
1176                 {
1177                         uint32_t chunk;
1178                         int retval;
1179                         chunk = buffer_size;
1180                         if (chunk > (j - bank->sectors[i].size))
1181                         {
1182                                 chunk = (j - bank->sectors[i].size);
1183                         }
1184
1185                         retval = target_read_memory(target, bank->base + bank->sectors[i].offset + j, 4, chunk/4, buffer);
1186                         if (retval != ERROR_OK)
1187                                 return retval;
1188
1189                         for (nBytes = 0; nBytes < chunk; nBytes++)
1190                         {
1191                                 if (buffer[nBytes] != 0xFF)
1192                                 {
1193                                         bank->sectors[i].is_erased = 0;
1194                                         break;
1195                                 }
1196                         }
1197                 }
1198         }
1199
1200         return ERROR_OK;
1201 }
1202
1203 int default_flash_blank_check(struct flash_bank_s *bank)
1204 {
1205         target_t *target = bank->target;
1206         int i;
1207         int retval;
1208         int fast_check = 0;
1209         uint32_t blank;
1210
1211         if (bank->target->state != TARGET_HALTED)
1212         {
1213                 LOG_ERROR("Target not halted");
1214                 return ERROR_TARGET_NOT_HALTED;
1215         }
1216
1217         for (i = 0; i < bank->num_sectors; i++)
1218         {
1219                 uint32_t address = bank->base + bank->sectors[i].offset;
1220                 uint32_t size = bank->sectors[i].size;
1221
1222                 if ((retval = target_blank_check_memory(target, address, size, &blank)) != ERROR_OK)
1223                 {
1224                         fast_check = 0;
1225                         break;
1226                 }
1227                 if (blank == 0xFF)
1228                         bank->sectors[i].is_erased = 1;
1229                 else
1230                         bank->sectors[i].is_erased = 0;
1231                 fast_check = 1;
1232         }
1233
1234         if (!fast_check)
1235         {
1236                 LOG_USER("Running slow fallback erase check - add working memory");
1237                 return default_flash_mem_blank_check(bank);
1238         }
1239
1240         return ERROR_OK;
1241 }