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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   7  *                                                                         *
   8  *   Copyright (C) 2008 by Spencer Oliver                                  *
   9  *   spen@spen-soft.co.uk                                                  *
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  *   This program is distributed in the hope that it will be useful,       *
  17  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  18  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  19  *   GNU General Public License for more details.                          *
  20  *                                                                         *
  21  *   You should have received a copy of the GNU General Public License     *
  22  *   along with this program; if not, write to the                         *
  23  *   Free Software Foundation, Inc.,                                       *
  24  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  25  ***************************************************************************/
  26 #ifdef HAVE_CONFIG_H
  27 #include "config.h"
  28 #endif
  29
  30 #include "flash.h"
  31 #include "command.h"
  32 #include "target.h"
  33 #include "time_support.h"
  34 #include "fileio.h"
  35 #include "image.h"
  36 #include "log.h"
  37 #include "armv4_5.h"
  38 #include "algorithm.h"
  39 #include "binarybuffer.h"
  40 #include "armv7m.h"
  41
  42 #include <string.h>
  43 #include <unistd.h>
  44 #include <stdlib.h>
  45 #include <sys/types.h>
  46 #include <sys/stat.h>
  47 #include <errno.h>
  48 #include <inttypes.h>
  49
  50 /* command handlers */
  51 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  53 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55 int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  57 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_flash_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  61 int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr);
  64
  65 /* flash drivers
  66  */
  67 extern flash_driver_t lpc2000_flash;
  68 extern flash_driver_t cfi_flash;
  69 extern flash_driver_t at91sam7_flash;
  70 extern flash_driver_t at91sam7_old_flash;
  71 extern flash_driver_t str7x_flash;
  72 extern flash_driver_t str9x_flash;
  73 extern flash_driver_t aduc702x_flash;
  74 extern flash_driver_t stellaris_flash;
  75 extern flash_driver_t str9xpec_flash;
  76 extern flash_driver_t stm32x_flash;
  77 extern flash_driver_t tms470_flash;
  78 extern flash_driver_t ecosflash_flash;
  79 extern flash_driver_t lpc288x_flash;
  80 extern flash_driver_t ocl_flash;
  81
  82 flash_driver_t *flash_drivers[] = {
  83         &lpc2000_flash,
  84         &cfi_flash,
  85         &at91sam7_flash,
  86         &at91sam7_old_flash,
  87         &str7x_flash,
  88         &str9x_flash,
  89         &aduc702x_flash,
  90         &stellaris_flash,
  91         &str9xpec_flash,
  92         &stm32x_flash,
  93         &tms470_flash,
  94         &ecosflash_flash,
  95         &lpc288x_flash,
  96         &ocl_flash,
  97         NULL,
  98 };
  99
 100 flash_bank_t *flash_banks;
 101 static  command_t *flash_cmd;
 102
 103 /* wafer thin wrapper for invoking the flash driver */
 104 static int flash_driver_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
 105 {
 106         int retval;
 107
 108         retval=bank->driver->write(bank, buffer, offset, count);
 109         if (retval!=ERROR_OK)
 110         {
 111                 LOG_ERROR("error writing to flash at address 0x%08x at offset 0x%8.8x (%d)", bank->base, offset, retval);
 112         }
 113
 114         return retval;
 115 }
 116
 117 static int flash_driver_erase(struct flash_bank_s *bank, int first, int last)
 118 {
 119         int retval;
 120
 121         retval=bank->driver->erase(bank, first, last);
 122         if (retval!=ERROR_OK)
 123         {
 124                 LOG_ERROR("failed erasing sectors %d to %d (%d)", first, last, retval);
 125         }
 126
 127         return retval;
 128 }
 129
 130 int flash_driver_protect(struct flash_bank_s *bank, int set, int first, int last)
 131 {
 132         int retval;
 133
 134         retval=bank->driver->protect(bank, set, first, last);
 135         if (retval!=ERROR_OK)
 136         {
 137                 LOG_ERROR("failed setting protection for areas %d to %d (%d)", first, last, retval);
 138         }
 139
 140         return retval;
 141 }
 142
 143 int flash_register_commands(struct command_context_s *cmd_ctx)
 144 {
 145         flash_cmd = register_command(cmd_ctx, NULL, "flash", NULL, COMMAND_ANY, NULL);
 146
 147         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 ...]");
 148         return ERROR_OK;
 149 }
 150
 151 static int jim_flash_banks(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 152 {
 153         flash_bank_t *p;
 154
 155         if (argc != 1) {
 156                 Jim_WrongNumArgs(interp, 1, argv, "no arguments to flash_banks command");
 157                 return JIM_ERR;
 158         }
 159
 160         Jim_Obj *list=Jim_NewListObj(interp, NULL, 0);
 161         for (p = flash_banks; p; p = p->next)
 162         {
 163                 Jim_Obj *elem=Jim_NewListObj(interp, NULL, 0);
 164
 165                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "name", -1));
 166                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, p->driver->name, -1));
 167                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "base", -1));
 168                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->base));
 169                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "size", -1));
 170                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->size));
 171                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "bus_width", -1));
 172                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->bus_width));
 173                 Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "chip_width", -1));
 174                 Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->chip_width));
 175
 176                 Jim_ListAppendElement(interp, list, elem);
 177         }
 178
 179         Jim_SetResult(interp, list);
 180
 181         return JIM_OK;
 182 }
 183
 184 int flash_init_drivers(struct command_context_s *cmd_ctx)
 185 {
 186         register_jim(cmd_ctx, "ocd_flash_banks", jim_flash_banks, "return information about the flash banks");
 187
 188         if (flash_banks)
 189         {
 190                 register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
 191                                                  "print info about flash bank <num>");
 192                 register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
 193                                                  "identify flash bank <num>");
 194                 register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
 195                                                  "check erase state of sectors in flash bank <num>");
 196                 register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
 197                                                  "check protection state of sectors in flash bank <num>");
 198                 register_command(cmd_ctx, flash_cmd, "erase_sector", handle_flash_erase_command, COMMAND_EXEC,
 199                                                  "erase sectors at <bank> <first> <last>");
 200                 register_command(cmd_ctx, flash_cmd, "erase_address", handle_flash_erase_address_command, COMMAND_EXEC,
 201                                                  "erase address range <address> <length>");
 202
 203                 register_command(cmd_ctx, flash_cmd, "fillw", handle_flash_fill_command, COMMAND_EXEC,
 204                                                  "fill with pattern (no autoerase) <address> <word_pattern> <count>");
 205                 register_command(cmd_ctx, flash_cmd, "fillh", handle_flash_fill_command, COMMAND_EXEC,
 206                                                  "fill with pattern <address> <halfword_pattern> <count>");
 207                 register_command(cmd_ctx, flash_cmd, "fillb", handle_flash_fill_command, COMMAND_EXEC,
 208                                                  "fill with pattern <address> <byte_pattern> <count>");
 209
 210                 register_command(cmd_ctx, flash_cmd, "write_bank", handle_flash_write_bank_command, COMMAND_EXEC,
 211                                                  "write binary data to <bank> <file> <offset>");
 212                 register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
 213                                                  "write_image [erase] <file> [offset] [type]");
 214                 register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
 215                                                  "set protection of sectors at <bank> <first> <last> <on|off>");
 216         }
 217
 218         return ERROR_OK;
 219 }
 220
 221 flash_bank_t *get_flash_bank_by_num_noprobe(int num)
 222 {
 223         flash_bank_t *p;
 224         int i = 0;
 225
 226         for (p = flash_banks; p; p = p->next)
 227         {
 228                 if (i++ == num)
 229                 {
 230                         return p;
 231                 }
 232         }
 233         LOG_ERROR("flash bank %d does not exist", num);
 234         return NULL;
 235 }
 236
 237 int flash_get_bank_count(void)
 238 {
 239         flash_bank_t *p;
 240         int i = 0;
 241         for (p = flash_banks; p; p = p->next)
 242         {
 243                 i++;
 244         }
 245         return i;
 246 }
 247
 248 flash_bank_t *get_flash_bank_by_num(int num)
 249 {
 250         flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
 251         int retval;
 252
 253         if (p == NULL)
 254                 return NULL;
 255
 256         retval = p->driver->auto_probe(p);
 257
 258         if (retval != ERROR_OK)
 259         {
 260                 LOG_ERROR("auto_probe failed %d\n", retval);
 261                 return NULL;
 262         }
 263         return p;
 264 }
 265
 266 int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 267 {
 268         int retval;
 269         int i;
 270         int found = 0;
 271         target_t *target;
 272
 273         if (argc < 6)
 274         {
 275                 return ERROR_COMMAND_SYNTAX_ERROR;
 276         }
 277
 278         if ((target = get_target_by_num(strtoul(args[5], NULL, 0))) == NULL)
 279         {
 280                 LOG_ERROR("target %lu not defined", strtoul(args[5], NULL, 0));
 281                 return ERROR_FAIL;
 282         }
 283
 284         for (i = 0; flash_drivers[i]; i++)
 285         {
 286                 if (strcmp(args[0], flash_drivers[i]->name) == 0)
 287                 {
 288                         flash_bank_t *p, *c;
 289
 290                         /* register flash specific commands */
 291                         if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
 292                         {
 293                                 LOG_ERROR("couldn't register '%s' commands", args[0]);
 294                                 return ERROR_FAIL;
 295                         }
 296
 297                         c = malloc(sizeof(flash_bank_t));
 298                         c->target = target;
 299                         c->driver = flash_drivers[i];
 300                         c->driver_priv = NULL;
 301                         c->base = strtoul(args[1], NULL, 0);
 302                         c->size = strtoul(args[2], NULL, 0);
 303                         c->chip_width = strtoul(args[3], NULL, 0);
 304                         c->bus_width = strtoul(args[4], NULL, 0);
 305                         c->num_sectors = 0;
 306                         c->sectors = NULL;
 307                         c->next = NULL;
 308
 309                         if ((retval=flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c)) != ERROR_OK)
 310                         {
 311                                 LOG_ERROR("'%s' driver rejected flash bank at 0x%8.8x", args[0], c->base);
 312                                 free(c);
 313                                 return retval;
 314                         }
 315
 316                         /* put flash bank in linked list */
 317                         if (flash_banks)
 318                         {
 319                                 /* find last flash bank */
 320                                 for (p = flash_banks; p && p->next; p = p->next);
 321                                 if (p)
 322                                         p->next = c;
 323                         }
 324                         else
 325                         {
 326                                 flash_banks = c;
 327                         }
 328
 329                         found = 1;
 330                 }
 331         }
 332
 333         /* no matching flash driver found */
 334         if (!found)
 335         {
 336                 LOG_ERROR("flash driver '%s' not found", args[0]);
 337                 return ERROR_FAIL;
 338         }
 339
 340         return ERROR_OK;
 341 }
 342
 343 int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 344 {
 345         flash_bank_t *p;
 346         int i = 0;
 347         int j = 0;
 348         int retval;
 349
 350         if (argc != 1)
 351         {
 352                 return ERROR_COMMAND_SYNTAX_ERROR;
 353         }
 354
 355         for (p = flash_banks; p; p = p->next, i++)
 356         {
 357                 if (i == strtoul(args[0], NULL, 0))
 358                 {
 359                         char buf[1024];
 360
 361                         /* attempt auto probe */
 362                         if ((retval = p->driver->auto_probe(p)) != ERROR_OK)
 363                                 return retval;
 364
 365                         command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
 366                                                 i, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
 367                         for (j = 0; j < p->num_sectors; j++)
 368                         {
 369                                 char *protect_state;
 370
 371                                 if (p->sectors[j].is_protected == 0)
 372                                         protect_state = "not protected";
 373                                 else if (p->sectors[j].is_protected == 1)
 374                                         protect_state = "protected";
 375                                 else
 376                                         protect_state = "protection state unknown";
 377
 378                                 command_print(cmd_ctx, "\t#%3i: 0x%8.8x (0x%x %ikB) %s",
 379                                                         j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
 380                                                         protect_state);
 381                         }
 382
 383                         *buf = '\0'; /* initialize buffer, otherwise it migh contain garbage if driver function fails */
 384                         retval = p->driver->info(p, buf, sizeof(buf));
 385                         command_print(cmd_ctx, "%s", buf);
 386                         if (retval != ERROR_OK)
 387                                 LOG_ERROR("error retrieving flash info (%d)", retval);
 388                 }
 389         }
 390
 391         return ERROR_OK;
 392 }
 393
 394 int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 395 {
 396         flash_bank_t *p;
 397         int retval;
 398
 399         if (argc != 1)
 400         {
 401                 return ERROR_COMMAND_SYNTAX_ERROR;
 402         }
 403
 404         p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
 405         if (p)
 406         {
 407                 if ((retval = p->driver->probe(p)) == ERROR_OK)
 408                 {
 409                         command_print(cmd_ctx, "flash '%s' found at 0x%8.8x", p->driver->name, p->base);
 410                 }
 411                 else if (retval == ERROR_FLASH_BANK_INVALID)
 412                 {
 413                         command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8x",
 414                                                   args[0], p->base);
 415                 }
 416                 else
 417                 {
 418                         command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8x",
 419                                                   args[0], p->base);
 420                 }
 421         }
 422         else
 423         {
 424                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 425         }
 426
 427         return ERROR_OK;
 428 }
 429
 430 int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 431 {
 432         flash_bank_t *p;
 433         int retval;
 434
 435         if (argc != 1)
 436         {
 437                 return ERROR_COMMAND_SYNTAX_ERROR;
 438         }
 439
 440         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 441         if (p)
 442         {
 443                 int j;
 444                 if ((retval = p->driver->erase_check(p)) == ERROR_OK)
 445                 {
 446                         command_print(cmd_ctx, "successfully checked erase state", p->driver->name, p->base);
 447                 }
 448                 else
 449                 {
 450                         command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8x",
 451                                 args[0], p->base);
 452                 }
 453
 454                 for (j = 0; j < p->num_sectors; j++)
 455                 {
 456                         char *erase_state;
 457
 458                         if (p->sectors[j].is_erased == 0)
 459                                 erase_state = "not erased";
 460                         else if (p->sectors[j].is_erased == 1)
 461                                 erase_state = "erased";
 462                         else
 463                                 erase_state = "erase state unknown";
 464
 465                         command_print(cmd_ctx, "\t#%3i: 0x%8.8x (0x%x %ikB) %s",
 466                                                 j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
 467                                                 erase_state);
 468                 }
 469
 470         }
 471
 472         return ERROR_OK;
 473 }
 474
 475 int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 476 {
 477         flash_bank_t *p;
 478         int retval;
 479         int address;
 480         int length;
 481         duration_t duration;
 482         char *duration_text;
 483
 484         target_t *target = get_current_target(cmd_ctx);
 485
 486         if (argc != 2)
 487         {
 488                 return ERROR_COMMAND_SYNTAX_ERROR;
 489         }
 490
 491         address = strtoul(args[0], NULL, 0);
 492         length = strtoul(args[1], NULL, 0);
 493         if (length <= 0)
 494         {
 495                 command_print(cmd_ctx, "Length must be >0");
 496                 return ERROR_COMMAND_SYNTAX_ERROR;
 497         }
 498
 499         p = get_flash_bank_by_addr(target, address);
 500         if (p == NULL)
 501         {
 502                 return ERROR_FAIL;
 503         }
 504
 505         /* We can't know if we did a resume + halt, in which case we no longer know the erased state */
 506         flash_set_dirty();
 507
 508         duration_start_measure(&duration);
 509
 510         if ((retval = flash_erase_address_range(target, address, length)) == ERROR_OK)
 511         {
 512                 if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 513                 {
 514                         return retval;
 515                 }
 516                 command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
 517                 free(duration_text);
 518         }
 519
 520         return retval;
 521 }
 522
 523 int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 524 {
 525         flash_bank_t *p;
 526         int retval;
 527
 528         if (argc != 1)
 529         {
 530                 return ERROR_COMMAND_SYNTAX_ERROR;
 531         }
 532
 533         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 534         if (p)
 535         {
 536                 if ((retval = p->driver->protect_check(p)) == ERROR_OK)
 537                 {
 538                         command_print(cmd_ctx, "successfully checked protect state");
 539                 }
 540                 else if (retval == ERROR_FLASH_OPERATION_FAILED)
 541                 {
 542                         command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8x", args[0], p->base);
 543                 }
 544                 else
 545                 {
 546                         command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8x", args[0], p->base);
 547                 }
 548         }
 549         else
 550         {
 551                 return ERROR_COMMAND_SYNTAX_ERROR;
 552         }
 553
 554         return ERROR_OK;
 555 }
 556
 557 int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 558 {
 559         if (argc > 2)
 560         {
 561                 int first = strtoul(args[1], NULL, 0);
 562                 int last = strtoul(args[2], NULL, 0);
 563                 int retval;
 564                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 565                 duration_t duration;
 566                 char *duration_text;
 567
 568                 duration_start_measure(&duration);
 569
 570                 if (!p)
 571                 {
 572                         return ERROR_COMMAND_SYNTAX_ERROR;
 573                 }
 574
 575                 if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK)
 576                 {
 577                         if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 578                         {
 579                                 return retval;
 580                         }
 581
 582                         command_print(cmd_ctx, "erased sectors %i through %i on flash bank %i in %s", first, last, strtoul(args[0], 0, 0), duration_text);
 583                         free(duration_text);
 584                 }
 585         }
 586         else
 587         {
 588                 return ERROR_COMMAND_SYNTAX_ERROR;
 589         }
 590
 591         return ERROR_OK;
 592 }
 593
 594 int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 595 {
 596         if (argc > 3)
 597         {
 598                 int first = strtoul(args[1], NULL, 0);
 599                 int last = strtoul(args[2], NULL, 0);
 600                 int set;
 601                 int retval;
 602                 flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 603                 if (!p)
 604                 {
 605                         command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 606                         return ERROR_OK;
 607                 }
 608
 609                 if (strcmp(args[3], "on") == 0)
 610                         set = 1;
 611                 else if (strcmp(args[3], "off") == 0)
 612                         set = 0;
 613                 else
 614                 {
 615                         return ERROR_COMMAND_SYNTAX_ERROR;
 616                 }
 617
 618                 retval = flash_driver_protect(p, set, first, last);
 619                 if (retval == ERROR_OK)
 620                 {
 621                         command_print(cmd_ctx, "%s protection for sectors %i through %i on flash bank %i", (set) ? "set" : "cleared", first, last, strtoul(args[0], 0, 0));
 622                 }
 623         }
 624         else
 625         {
 626                 return ERROR_COMMAND_SYNTAX_ERROR;
 627
 628         }
 629
 630         return ERROR_OK;
 631 }
 632
 633 int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 634 {
 635         target_t *target = get_current_target(cmd_ctx);
 636
 637         image_t image;
 638         u32 written;
 639
 640         duration_t duration;
 641         char *duration_text;
 642
 643         int retval, retvaltemp;
 644
 645         if (argc < 1)
 646         {
 647                 return ERROR_COMMAND_SYNTAX_ERROR;
 648         }
 649
 650         /* flash auto-erase is disabled by default*/
 651         int auto_erase = 0;
 652
 653         if (strcmp(args[0], "erase")==0)
 654         {
 655                 auto_erase = 1;
 656                 args++;
 657                 argc--;
 658                 command_print(cmd_ctx, "auto erase enabled");
 659         }
 660
 661
 662         if (argc < 1)
 663         {
 664                 return ERROR_COMMAND_SYNTAX_ERROR;
 665         }
 666
 667         if (!target)
 668         {
 669                 LOG_ERROR("no target selected");
 670                 return ERROR_FAIL;
 671         }
 672
 673         duration_start_measure(&duration);
 674
 675         if (argc >= 2)
 676         {
 677                 image.base_address_set = 1;
 678                 image.base_address = strtoul(args[1], NULL, 0);
 679         }
 680         else
 681         {
 682                 image.base_address_set = 0;
 683                 image.base_address = 0x0;
 684         }
 685
 686         image.start_address_set = 0;
 687
 688         retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
 689         if (retval != ERROR_OK)
 690         {
 691                 return retval;
 692         }
 693
 694         retval = flash_write(target, &image, &written, auto_erase);
 695         if (retval != ERROR_OK)
 696         {
 697                 image_close(&image);
 698                 return retval;
 699         }
 700
 701         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 702         {
 703                 image_close(&image);
 704                 return retvaltemp;
 705         }
 706         if (retval == ERROR_OK)
 707         {
 708                 command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
 709                                 written, args[0], duration_text,
 710                                 (float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 711         }
 712         free(duration_text);
 713
 714         image_close(&image);
 715
 716         return retval;
 717 }
 718
 719 int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 720 {
 721         int err = ERROR_OK, retval;
 722         u32 address;
 723         u32 pattern;
 724         u32 count;
 725         u8 chunk[1024];
 726         u32 wrote = 0;
 727         int chunk_count;
 728         char *duration_text;
 729         duration_t duration;
 730         target_t *target = get_current_target(cmd_ctx);
 731         u32 i;
 732         int wordsize;
 733
 734         if (argc != 3)
 735         {
 736                 return ERROR_COMMAND_SYNTAX_ERROR;
 737         }
 738
 739         address = strtoul(args[0], NULL, 0);
 740         pattern = strtoul(args[1], NULL, 0);
 741         count   = strtoul(args[2], NULL, 0);
 742
 743         if(count == 0)
 744                 return ERROR_OK;
 745
 746
 747         switch(cmd[4])
 748         {
 749         case 'w':
 750                 wordsize=4;
 751                 break;
 752         case 'h':
 753                 wordsize=2;
 754                 break;
 755         case 'b':
 756                 wordsize=1;
 757                 break;
 758         default:
 759                 return ERROR_COMMAND_SYNTAX_ERROR;
 760         }
 761
 762         chunk_count = MIN(count, (1024 / wordsize));
 763         switch(wordsize)
 764         {
 765         case 4:
 766                 for(i = 0; i < chunk_count; i++)
 767                 {
 768                         target_buffer_set_u32(target, chunk + i * wordsize, pattern);
 769                 }
 770                 break;
 771         case 2:
 772                 for(i = 0; i < chunk_count; i++)
 773                 {
 774                         target_buffer_set_u16(target, chunk + i * wordsize, pattern);
 775                 }
 776                 break;
 777         case 1:
 778                 memset(chunk, pattern, chunk_count);
 779                 break;
 780         default:
 781                 LOG_ERROR("BUG: can't happen");
 782                 exit(-1);
 783         }
 784
 785         duration_start_measure(&duration);
 786
 787         for (wrote=0; wrote<(count*wordsize); wrote+=sizeof(chunk))
 788         {
 789                 int cur_size = MIN( (count*wordsize - wrote) , 1024 );
 790                 flash_bank_t *bank;
 791                 bank = get_flash_bank_by_addr(target, address);
 792                 if(bank == NULL)
 793                 {
 794                         return ERROR_FAIL;
 795                 }
 796                 err = flash_driver_write(bank, chunk, address - bank->base + wrote, cur_size);
 797                 if (err!=ERROR_OK)
 798                         return err;
 799                 wrote += cur_size;
 800         }
 801
 802         if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 803         {
 804                 return retval;
 805         }
 806
 807
 808         if(err == ERROR_OK)
 809         {
 810                 float speed;
 811                 speed=wrote / 1024.0;
 812                 speed/=((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0));
 813                 command_print(cmd_ctx, "wrote %d bytes to 0x%8.8x in %s (%f kb/s)",
 814                         count*wordsize, address, duration_text,
 815                         speed);
 816         }
 817         free(duration_text);
 818         return ERROR_OK;
 819 }
 820
 821 int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 822 {
 823         u32 offset;
 824         u8 *buffer;
 825         u32 buf_cnt;
 826
 827         fileio_t fileio;
 828
 829         duration_t duration;
 830         char *duration_text;
 831
 832         int retval, retvaltemp;
 833         flash_bank_t *p;
 834
 835         if (argc != 3)
 836         {
 837                 return ERROR_COMMAND_SYNTAX_ERROR;
 838         }
 839
 840         duration_start_measure(&duration);
 841
 842         offset = strtoul(args[2], NULL, 0);
 843         p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 844         if (!p)
 845         {
 846                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 847                 return ERROR_OK;
 848         }
 849
 850         if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
 851         {
 852                 return ERROR_OK;
 853         }
 854
 855         buffer = malloc(fileio.size);
 856         if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
 857         {
 858                 free(buffer);
 859                 fileio_close(&fileio);
 860                 return ERROR_OK;
 861         }
 862
 863         retval = flash_driver_write(p, buffer, offset, buf_cnt);
 864
 865         free(buffer);
 866         buffer = NULL;
 867
 868         if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
 869         {
 870                 fileio_close(&fileio);
 871                 return retvaltemp;
 872         }
 873         if (retval==ERROR_OK)
 874         {
 875         command_print(cmd_ctx, "wrote  %"PRIi64" byte from file %s to flash bank %i at offset 0x%8.8x in %s (%f kb/s)",
 876                 fileio.size, args[1], strtoul(args[0], NULL, 0), offset, duration_text,
 877                 (float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
 878         }
 879         free(duration_text);
 880
 881         fileio_close(&fileio);
 882
 883         return retval;
 884 }
 885
 886 void flash_set_dirty(void)
 887 {
 888         flash_bank_t *c;
 889         int i;
 890
 891         /* set all flash to require erasing */
 892         for (c = flash_banks; c; c = c->next)
 893         {
 894                 for (i = 0; i < c->num_sectors; i++)
 895                 {
 896                         c->sectors[i].is_erased = 0;
 897                 }
 898         }
 899 }
 900
 901 /* lookup flash bank by address */
 902 flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr)
 903 {
 904         flash_bank_t *c;
 905
 906         /* cycle through bank list */
 907         for (c = flash_banks; c; c = c->next)
 908         {
 909                 int retval;
 910                 retval = c->driver->auto_probe(c);
 911
 912                 if (retval != ERROR_OK)
 913                 {
 914                         LOG_ERROR("auto_probe failed %d\n", retval);
 915                         return NULL;
 916                 }
 917                 /* check whether address belongs to this flash bank */
 918                 if ((addr >= c->base) && (addr <= c->base + (c->size - 1)) && target == c->target)
 919                         return c;
 920         }
 921         LOG_ERROR("No flash at address 0x%08x\n", addr);
 922         return NULL;
 923 }
 924
 925 /* erase given flash region, selects proper bank according to target and address */
 926 int flash_erase_address_range(target_t *target, u32 addr, u32 length)
 927 {
 928         flash_bank_t *c;
 929         int first = -1;
 930         int last = -1;
 931         int i;
 932
 933         if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
 934                 return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
 935
 936         if (c->size == 0 || c->num_sectors == 0)
 937         {
 938                 LOG_ERROR("Bank is invalid");
 939                 return ERROR_FLASH_BANK_INVALID;
 940         }
 941
 942         if (length == 0)
 943         {
 944                 /* special case, erase whole bank when length is zero */
 945                 if (addr != c->base)
 946                         return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 947
 948                 return flash_driver_erase(c, 0, c->num_sectors - 1);
 949         }
 950
 951         /* check whether it fits */
 952         if (addr + length > c->base + c->size)
 953                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 954
 955         addr -= c->base;
 956
 957         for (i = 0; i < c->num_sectors; i++)
 958         {
 959                 /* check whether sector overlaps with the given range and is not yet erased */
 960                 if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
 961                         /* if first is not set yet then this is the first sector */
 962                         if (first == -1)
 963                                 first = i;
 964                         last = i; /* and it is the last one so far in any case */
 965                 }
 966         }
 967
 968         if( first == -1 || last == -1 )
 969                 return ERROR_OK;
 970
 971         return flash_driver_erase(c, first, last);
 972 }
 973
 974 /* write (optional verify) an image to flash memory of the given target */
 975 int flash_write(target_t *target, image_t *image, u32 *written, int erase)
 976 {
 977         int retval=ERROR_OK;
 978
 979         int section;
 980         u32 section_offset;
 981         flash_bank_t *c;
 982         int *padding;
 983
 984         section = 0;
 985         section_offset = 0;
 986
 987         if (written)
 988                 *written = 0;
 989
 990         if (erase)
 991         {
 992                 /* assume all sectors need erasing - stops any problems
 993                  * when flash_write is called multiple times */
 994
 995                 flash_set_dirty();
 996         }
 997
 998         /* allocate padding array */
 999         padding = malloc(image->num_sections * sizeof(padding));
1000
1001         /* loop until we reach end of the image */
1002         while (section < image->num_sections)
1003         {
1004                 u32 buffer_size;
1005                 u8 *buffer;
1006                 int section_first;
1007                 int section_last;
1008                 u32 run_address = image->sections[section].base_address + section_offset;
1009                 u32 run_size = image->sections[section].size - section_offset;
1010                 int pad_bytes = 0;
1011
1012                 if (image->sections[section].size ==  0)
1013                 {
1014                         LOG_WARNING("empty section %d", section);
1015                         section++;
1016                         section_offset = 0;
1017                         continue;
1018                 }
1019
1020                 /* find the corresponding flash bank */
1021                 if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
1022                 {
1023                         section++; /* and skip it */
1024                         section_offset = 0;
1025                         continue;
1026                 }
1027
1028                 /* collect consecutive sections which fall into the same bank */
1029                 section_first = section;
1030                 section_last = section;
1031                 padding[section] = 0;
1032                 while ((run_address + run_size < c->base + c->size)
1033                                 && (section_last + 1 < image->num_sections))
1034                 {
1035                         if (image->sections[section_last + 1].base_address < (run_address + run_size))
1036                         {
1037                                 LOG_DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
1038                                 break;
1039                         }
1040                         /* if we have multiple sections within our image, flash programming could fail due to alignment issues
1041                          * attempt to rebuild a consecutive buffer for the flash loader */
1042                         pad_bytes = (image->sections[section_last + 1].base_address) - (run_address + run_size);
1043                         if ((run_address + run_size + pad_bytes) > (c->base + c->size))
1044                                 break;
1045                         padding[section_last] = pad_bytes;
1046                         run_size += image->sections[++section_last].size;
1047                         run_size += pad_bytes;
1048                         padding[section_last] = 0;
1049
1050                         LOG_INFO("Padding image section %d with %d bytes", section_last-1, pad_bytes );
1051                 }
1052
1053                 /* fit the run into bank constraints */
1054                 if (run_address + run_size > c->base + c->size)
1055                         run_size = c->base + c->size - run_address;
1056
1057                 /* allocate buffer */
1058                 buffer = malloc(run_size);
1059                 buffer_size = 0;
1060
1061                 /* read sections to the buffer */
1062                 while (buffer_size < run_size)
1063                 {
1064                         u32 size_read;
1065
1066                         size_read = run_size - buffer_size;
1067                         if (size_read > image->sections[section].size - section_offset)
1068                             size_read = image->sections[section].size - section_offset;
1069
1070                         if ((retval = image_read_section(image, section, section_offset,
1071                                         size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
1072                         {
1073                                 free(buffer);
1074                                 free(padding);
1075                                 return retval;
1076                         }
1077
1078                         /* see if we need to pad the section */
1079                         while (padding[section]--)
1080                                  (buffer+buffer_size)[size_read++] = 0xff;
1081
1082                         buffer_size += size_read;
1083                         section_offset += size_read;
1084
1085                         if (section_offset >= image->sections[section].size)
1086                         {
1087                                 section++;
1088                                 section_offset = 0;
1089                         }
1090                 }
1091
1092                 retval = ERROR_OK;
1093
1094                 if (erase)
1095                 {
1096                         /* calculate and erase sectors */
1097                         retval = flash_erase_address_range( target, run_address, run_size );
1098                 }
1099
1100                 if (retval == ERROR_OK)
1101                 {
1102                         /* write flash sectors */
1103                         retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
1104                 }
1105
1106                 free(buffer);
1107
1108                 if (retval != ERROR_OK)
1109                 {
1110                         free(padding);
1111                         return retval; /* abort operation */
1112                 }
1113
1114                 if (written != NULL)
1115                         *written += run_size; /* add run size to total written counter */
1116         }
1117
1118         free(padding);
1119
1120         return retval;
1121 }
1122
1123 int default_flash_mem_blank_check(struct flash_bank_s *bank)
1124 {
1125         target_t *target = bank->target;
1126         u8 buffer[1024];
1127         int buffer_size = sizeof(buffer);
1128         int i;
1129         int nBytes;
1130
1131         if (bank->target->state != TARGET_HALTED)
1132         {
1133                 LOG_ERROR("Target not halted");
1134                 return ERROR_TARGET_NOT_HALTED;
1135         }
1136
1137         for (i = 0; i < bank->num_sectors; i++)
1138         {
1139                 int j;
1140                 bank->sectors[i].is_erased = 1;
1141
1142                 for (j = 0; j < bank->sectors[i].size; j += buffer_size)
1143                 {
1144                         int chunk;
1145                         int retval;
1146                         chunk = buffer_size;
1147                         if (chunk > (j - bank->sectors[i].size))
1148                         {
1149                                 chunk = (j - bank->sectors[i].size);
1150                         }
1151
1152                         retval = target->type->read_memory(target, bank->base + bank->sectors[i].offset + j, 4, chunk/4, buffer);
1153                         if (retval != ERROR_OK)
1154                                 return retval;
1155
1156                         for (nBytes = 0; nBytes < chunk; nBytes++)
1157                         {
1158                                 if (buffer[nBytes] != 0xFF)
1159                                 {
1160                                         bank->sectors[i].is_erased = 0;
1161                                         break;
1162                                 }
1163                         }
1164                 }
1165         }
1166
1167         return ERROR_OK;
1168 }
1169
1170 int default_flash_blank_check(struct flash_bank_s *bank)
1171 {
1172         target_t *target = bank->target;
1173         int i;
1174         int retval;
1175         int fast_check = 0;
1176         u32 blank;
1177
1178         if (bank->target->state != TARGET_HALTED)
1179         {
1180                 LOG_ERROR("Target not halted");
1181                 return ERROR_TARGET_NOT_HALTED;
1182         }
1183
1184         for (i = 0; i < bank->num_sectors; i++)
1185         {
1186                 u32 address = bank->base + bank->sectors[i].offset;
1187                 u32 size = bank->sectors[i].size;
1188
1189                 if ((retval = target_blank_check_memory(target, address, size, &blank)) != ERROR_OK)
1190                 {
1191                         fast_check = 0;
1192                         break;
1193                 }
1194                 if (blank == 0xFF)
1195                         bank->sectors[i].is_erased = 1;
1196                 else
1197                         bank->sectors[i].is_erased = 0;
1198                 fast_check = 1;
1199         }
1200
1201         if (!fast_check)
1202         {
1203                 LOG_USER("Running slow fallback erase check - add working memory");
1204                 return default_flash_mem_blank_check(bank);
1205         }
1206
1207         return ERROR_OK;
1208 }