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