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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "lpc2000.h"
  25
  26 #include "flash.h"
  27 #include "target.h"
  28 #include "log.h"
  29 #include "armv4_5.h"
  30 #include "algorithm.h"
  31 #include "binarybuffer.h"
  32
  33 #include <stdlib.h>
  34 #include <string.h>
  35
  36 /* flash programming support for Philips LPC2xxx devices
  37  * currently supported devices:
  38  * variant 1 (lpc2000_v1):
  39  * - 2104|5|6
  40  * - 2114|9
  41  * - 2124|9
  42  * - 2194
  43  * - 2212|4
  44  * - 2292|4
  45  *
  46  * variant 2 (lpc2000_v2):
  47  * - 213x
  48  * - 214x
  49  */
  50
  51 int lpc2000_register_commands(struct command_context_s *cmd_ctx);
  52 int lpc2000_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
  53 int lpc2000_erase(struct flash_bank_s *bank, int first, int last);
  54 int lpc2000_protect(struct flash_bank_s *bank, int set, int first, int last);
  55 int lpc2000_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
  56 int lpc2000_probe(struct flash_bank_s *bank);
  57 int lpc2000_erase_check(struct flash_bank_s *bank);
  58 int lpc2000_protect_check(struct flash_bank_s *bank);
  59 int lpc2000_info(struct flash_bank_s *bank, char *buf, int buf_size);
  60
  61 int lpc2000_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62
  63 flash_driver_t lpc2000_flash =
  64 {
  65         .name = "lpc2000",
  66         .register_commands = lpc2000_register_commands,
  67         .flash_bank_command = lpc2000_flash_bank_command,
  68         .erase = lpc2000_erase,
  69         .protect = lpc2000_protect,
  70         .write = lpc2000_write,
  71         .probe = lpc2000_probe,
  72         .erase_check = lpc2000_erase_check,
  73         .protect_check = lpc2000_protect_check,
  74         .info = lpc2000_info
  75 };
  76
  77 int lpc2000_register_commands(struct command_context_s *cmd_ctx)
  78 {
  79         command_t *lpc2000_cmd = register_command(cmd_ctx, NULL, "lpc2000", NULL, COMMAND_ANY, NULL);
  80
  81         register_command(cmd_ctx, lpc2000_cmd, "part_id", lpc2000_handle_part_id_command, COMMAND_EXEC,
  82                                          "print part id of lpc2000 flash bank <num>");
  83
  84         return ERROR_OK;
  85 }
  86
  87 int lpc2000_build_sector_list(struct flash_bank_s *bank)
  88 {
  89         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
  90
  91         if (lpc2000_info->variant == 1)
  92         {
  93                 int i = 0;
  94                 u32 offset = 0;
  95
  96                 /* variant 1 has different layout for 128kb and 256kb flashes */
  97                 if (bank->size == 128 * 1024)
  98                 {
  99                         bank->num_sectors = 16;
 100                         bank->sectors = malloc(sizeof(flash_sector_t) * 16);
 101                         for (i = 0; i < 16; i++)
 102                         {
 103                                 bank->sectors[i].offset = offset;
 104                                 bank->sectors[i].size = 8 * 1024;
 105                                 offset += bank->sectors[i].size;
 106                                 bank->sectors[i].is_erased = -1;
 107                                 bank->sectors[i].is_protected = 1;
 108                         }
 109                 }
 110                 else if (bank->size == 256 * 1024)
 111                 {
 112                         bank->num_sectors = 18;
 113                         bank->sectors = malloc(sizeof(flash_sector_t) * 18);
 114
 115                         for (i = 0; i < 8; i++)
 116                         {
 117                                 bank->sectors[i].offset = offset;
 118                                 bank->sectors[i].size = 8 * 1024;
 119                                 offset += bank->sectors[i].size;
 120                                 bank->sectors[i].is_erased = -1;
 121                                 bank->sectors[i].is_protected = 1;
 122                         }
 123                         for (i = 8; i < 10; i++)
 124                         {
 125                                 bank->sectors[i].offset = offset;
 126                                 bank->sectors[i].size = 64 * 1024;
 127                                 offset += bank->sectors[i].size;
 128                                 bank->sectors[i].is_erased = -1;
 129                                 bank->sectors[i].is_protected = 1;
 130                         }
 131                         for (i = 10; i < 18; i++)
 132                         {
 133                                 bank->sectors[i].offset = offset;
 134                                 bank->sectors[i].size = 8 * 1024;
 135                                 offset += bank->sectors[i].size;
 136                                 bank->sectors[i].is_erased = -1;
 137                                 bank->sectors[i].is_protected = 1;
 138                         }
 139                 }
 140                 else
 141                 {
 142                         ERROR("BUG: unknown bank->size encountered");
 143                         exit(-1);
 144                 }
 145         }
 146         else if (lpc2000_info->variant == 2)
 147         {
 148                 int num_sectors;
 149                 int i;
 150                 u32 offset = 0;
 151
 152                 /* variant 2 has a uniform layout, only number of sectors differs */
 153                 switch (bank->size)
 154                 {
 155                         case 32 * 1024:
 156                                 num_sectors = 8;
 157                                 break;
 158                         case 64 * 1024:
 159                                 num_sectors = 9;
 160                                 break;
 161                         case 128 * 1024:
 162                                 num_sectors = 11;
 163                                 break;
 164                         case 256 * 1024:
 165                                 num_sectors = 15;
 166                                 break;
 167                         case 500 * 1024:
 168                                 num_sectors = 27;
 169                                 break;
 170                         default:
 171                                 ERROR("BUG: unknown bank->size encountered");
 172                                 exit(-1);
 173                                 break;
 174                 }
 175
 176                 bank->num_sectors = num_sectors;
 177                 bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);
 178
 179                 for (i = 0; i < num_sectors; i++)
 180                 {
 181                         if ((i >= 0) && (i < 8))
 182                         {
 183                                 bank->sectors[i].offset = offset;
 184                                 bank->sectors[i].size = 4 * 1024;
 185                                 offset += bank->sectors[i].size;
 186                                 bank->sectors[i].is_erased = -1;
 187                                 bank->sectors[i].is_protected = 1;
 188                         }
 189                         if ((i >= 8) && (i < 22))
 190                         {
 191                                 bank->sectors[i].offset = offset;
 192                                 bank->sectors[i].size = 32 * 1024;
 193                                 offset += bank->sectors[i].size;
 194                                 bank->sectors[i].is_erased = -1;
 195                                 bank->sectors[i].is_protected = 1;
 196                         }
 197                         if ((i >= 22) && (i < 27))
 198                         {
 199                                 bank->sectors[i].offset = offset;
 200                                 bank->sectors[i].size = 4 * 1024;
 201                                 offset += bank->sectors[i].size;
 202                                 bank->sectors[i].is_erased = -1;
 203                                 bank->sectors[i].is_protected = 1;
 204                         }
 205                 }
 206         }
 207         else
 208         {
 209                 ERROR("BUG: unknown lpc2000_info->variant encountered");
 210                 exit(-1);
 211         }
 212
 213         return ERROR_OK;
 214 }
 215
 216 /* call LPC2000 IAP function
 217  * uses 172 bytes working area
 218  * 0x0 to 0x7: jump gate (BX to thumb state, b -2 to wait)
 219  * 0x8 to 0x1f: command parameter table
 220  * 0x20 to 0x2b: command result table
 221  * 0x2c to 0xac: stack (only 128b needed)
 222  */
 223 int lpc2000_iap_call(flash_bank_t *bank, int code, u32 param_table[5], u32 result_table[2])
 224 {
 225         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 226         target_t *target = lpc2000_info->target;
 227         mem_param_t mem_params[2];
 228         reg_param_t reg_params[5];
 229         armv4_5_algorithm_t armv4_5_info;
 230         u32 status_code;
 231
 232         /* regrab previously allocated working_area, or allocate a new one */
 233         if (!lpc2000_info->iap_working_area)
 234         {
 235                 u8 jump_gate[8];
 236
 237                 /* make sure we have a working area */
 238                 if (target_alloc_working_area(target, 172, &lpc2000_info->iap_working_area) != ERROR_OK)
 239                 {
 240                         ERROR("no working area specified, can't write LPC2000 internal flash");
 241                         return ERROR_FLASH_OPERATION_FAILED;
 242                 }
 243
 244                 /* write IAP code to working area */
 245                 buf_set_u32(jump_gate, 0, 32, ARMV4_5_BX(12));
 246                 buf_set_u32(jump_gate, 32, 32, 0xeafffffe);
 247                 target->type->write_memory(target, lpc2000_info->iap_working_area->address, 4, 2, (u8*)jump_gate);
 248         }
 249
 250         armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
 251         armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
 252         armv4_5_info.core_state = ARMV4_5_STATE_ARM;
 253
 254         /* command parameter table */
 255         init_mem_param(&mem_params[0], lpc2000_info->iap_working_area->address + 8, 4 * 6, PARAM_OUT);
 256         buf_set_u32(mem_params[0].value, 0, 32, code);
 257         buf_set_u32(mem_params[0].value, 32, 32, param_table[0]);
 258         buf_set_u32(mem_params[0].value, 64, 32, param_table[1]);
 259         buf_set_u32(mem_params[0].value, 96, 32, param_table[2]);
 260         buf_set_u32(mem_params[0].value, 128, 32, param_table[3]);
 261         buf_set_u32(mem_params[0].value, 160, 32, param_table[4]);
 262
 263         init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
 264         buf_set_u32(reg_params[0].value, 0, 32, lpc2000_info->iap_working_area->address + 0x8);
 265
 266         /* command result table */
 267         init_mem_param(&mem_params[1], lpc2000_info->iap_working_area->address + 0x20, 4 * 3, PARAM_IN);
 268
 269         init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
 270         buf_set_u32(reg_params[1].value, 0, 32, lpc2000_info->iap_working_area->address + 0x20);
 271
 272         /* IAP entry point */
 273         init_reg_param(&reg_params[2], "r12", 32, PARAM_OUT);
 274         buf_set_u32(reg_params[2].value, 0, 32, 0x7ffffff1);
 275
 276         /* IAP stack */
 277         init_reg_param(&reg_params[3], "r13_svc", 32, PARAM_OUT);
 278         buf_set_u32(reg_params[3].value, 0, 32, lpc2000_info->iap_working_area->address + 0xac);
 279
 280         /* return address */
 281         init_reg_param(&reg_params[4], "lr_svc", 32, PARAM_OUT);
 282         buf_set_u32(reg_params[4].value, 0, 32, lpc2000_info->iap_working_area->address + 0x4);
 283
 284         target->type->run_algorithm(target, 2, mem_params, 5, reg_params, lpc2000_info->iap_working_area->address, lpc2000_info->iap_working_area->address + 0x4, 10000, &armv4_5_info);
 285
 286         status_code = buf_get_u32(mem_params[1].value, 0, 32);
 287         result_table[0] = buf_get_u32(mem_params[1].value, 32, 32);
 288         result_table[1] = buf_get_u32(mem_params[1].value, 64, 32);
 289
 290         destroy_mem_param(&mem_params[0]);
 291         destroy_mem_param(&mem_params[1]);
 292
 293         destroy_reg_param(&reg_params[0]);
 294         destroy_reg_param(&reg_params[1]);
 295         destroy_reg_param(&reg_params[2]);
 296         destroy_reg_param(&reg_params[3]);
 297         destroy_reg_param(&reg_params[4]);
 298
 299         return status_code;
 300 }
 301
 302 int lpc2000_iap_blank_check(struct flash_bank_s *bank, int first, int last)
 303 {
 304         u32 param_table[5];
 305         u32 result_table[2];
 306         int status_code;
 307         int i;
 308
 309         if ((first < 0) || (last > bank->num_sectors))
 310                 return ERROR_FLASH_SECTOR_INVALID;
 311
 312         for (i = first; i <= last; i++)
 313         {
 314                 /* check single sector */
 315                 param_table[0] = param_table[1] = i;
 316                 status_code = lpc2000_iap_call(bank, 53, param_table, result_table);
 317
 318                 switch (status_code)
 319                 {
 320                         case ERROR_FLASH_OPERATION_FAILED:
 321                                 return ERROR_FLASH_OPERATION_FAILED;
 322                         case LPC2000_CMD_SUCCESS:
 323                                 bank->sectors[i].is_erased = 1;
 324                                 break;
 325                         case LPC2000_SECTOR_NOT_BLANK:
 326                                 bank->sectors[i].is_erased = 0;
 327                                 break;
 328                         case LPC2000_INVALID_SECTOR:
 329                                 bank->sectors[i].is_erased = 0;
 330                                 break;
 331                         case LPC2000_BUSY:
 332                                 return ERROR_FLASH_BUSY;
 333                                 break;
 334                         default:
 335                                 ERROR("BUG: unknown LPC2000 status code");
 336                                 exit(-1);
 337                 }
 338         }
 339
 340         return ERROR_OK;
 341 }
 342
 343 /* flash_bank lpc2000 <base> <size> 0 0 <lpc_variant> <target#> <cclk> [calc_checksum]
 344  */
 345 int lpc2000_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
 346 {
 347         lpc2000_flash_bank_t *lpc2000_info;
 348
 349         if (argc < 8)
 350         {
 351                 WARNING("incomplete flash_bank lpc2000 configuration");
 352                 return ERROR_FLASH_BANK_INVALID;
 353         }
 354
 355         lpc2000_info = malloc(sizeof(lpc2000_flash_bank_t));
 356         bank->driver_priv = lpc2000_info;
 357
 358         if (strcmp(args[5], "lpc2000_v1") == 0)
 359         {
 360                 lpc2000_info->variant = 1;
 361                 lpc2000_info->cmd51_dst_boundary = 512;
 362                 lpc2000_info->cmd51_can_256b = 0;
 363                 lpc2000_info->cmd51_can_8192b = 1;
 364         }
 365         else if (strcmp(args[5], "lpc2000_v2") == 0)
 366         {
 367                 lpc2000_info->variant = 2;
 368                 lpc2000_info->cmd51_dst_boundary = 256;
 369                 lpc2000_info->cmd51_can_256b = 1;
 370                 lpc2000_info->cmd51_can_8192b = 0;
 371         }
 372         else
 373         {
 374                 ERROR("unknown LPC2000 variant");
 375                 free(lpc2000_info);
 376                 return ERROR_FLASH_BANK_INVALID;
 377         }
 378
 379         lpc2000_info->target = get_target_by_num(strtoul(args[6], NULL, 0));
 380         if (!lpc2000_info->target)
 381         {
 382                 ERROR("no target '%s' configured", args[6]);
 383                 exit(-1);
 384         }
 385         lpc2000_info->iap_working_area = NULL;
 386         lpc2000_info->cclk = strtoul(args[7], NULL, 0);
 387         lpc2000_info->calc_checksum = 0;
 388         lpc2000_build_sector_list(bank);
 389
 390
 391         if (argc >= 9)
 392         {
 393                 if (strcmp(args[8], "calc_checksum") == 0)
 394                         lpc2000_info->calc_checksum = 1;
 395         }
 396
 397         return ERROR_OK;
 398 }
 399
 400 int lpc2000_erase(struct flash_bank_s *bank, int first, int last)
 401 {
 402         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 403         u32 param_table[5];
 404         u32 result_table[2];
 405         int status_code;
 406
 407         if (lpc2000_info->target->state != TARGET_HALTED)
 408         {
 409                 return ERROR_TARGET_NOT_HALTED;
 410         }
 411
 412         if ((first < 0) || (last < first) || (last >= bank->num_sectors))
 413         {
 414                 return ERROR_FLASH_SECTOR_INVALID;
 415         }
 416
 417         param_table[0] = first;
 418         param_table[1] = last;
 419         param_table[2] = lpc2000_info->cclk;
 420
 421         /* Prepare sectors */
 422         status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
 423         switch (status_code)
 424         {
 425                 case ERROR_FLASH_OPERATION_FAILED:
 426                         return ERROR_FLASH_OPERATION_FAILED;
 427                 case LPC2000_CMD_SUCCESS:
 428                         break;
 429                 case LPC2000_INVALID_SECTOR:
 430                         return ERROR_FLASH_SECTOR_INVALID;
 431                         break;
 432                 default:
 433                         WARNING("lpc2000 prepare sectors returned %i", status_code);
 434                         return ERROR_FLASH_OPERATION_FAILED;
 435         }
 436
 437         /* Erase sectors */
 438         status_code = lpc2000_iap_call(bank, 52, param_table, result_table);
 439         switch (status_code)
 440         {
 441                 case ERROR_FLASH_OPERATION_FAILED:
 442                         return ERROR_FLASH_OPERATION_FAILED;
 443                 case LPC2000_CMD_SUCCESS:
 444                         break;
 445                 case LPC2000_INVALID_SECTOR:
 446                         return ERROR_FLASH_SECTOR_INVALID;
 447                         break;
 448                 default:
 449                         WARNING("lpc2000 erase sectors returned %i", status_code);
 450                         return ERROR_FLASH_OPERATION_FAILED;
 451         }
 452
 453         return ERROR_OK;
 454 }
 455
 456 int lpc2000_protect(struct flash_bank_s *bank, int set, int first, int last)
 457 {
 458         /* can't protect/unprotect on the lpc2000 */
 459         return ERROR_OK;
 460 }
 461
 462 int lpc2000_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
 463 {
 464         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 465         target_t *target = lpc2000_info->target;
 466         u32 dst_min_alignment;
 467         u32 bytes_remaining = count;
 468         u32 bytes_written = 0;
 469         int first_sector = 0;
 470         int last_sector = 0;
 471         u32 param_table[5];
 472         u32 result_table[2];
 473         int status_code;
 474         int i;
 475         working_area_t *download_area;
 476
 477         if (lpc2000_info->target->state != TARGET_HALTED)
 478         {
 479                 return ERROR_TARGET_NOT_HALTED;
 480         }
 481
 482         /* allocate a working area */
 483         if (target_alloc_working_area(target, 4096, &download_area) != ERROR_OK)
 484         {
 485                 ERROR("no working area specified, can't write LPC2000 internal flash");
 486                 return ERROR_FLASH_OPERATION_FAILED;
 487         }
 488
 489         if (offset + count > bank->size)
 490                 return ERROR_FLASH_DST_OUT_OF_BANK;
 491
 492         if (lpc2000_info->cmd51_can_256b)
 493                 dst_min_alignment = 256;
 494         else
 495                 dst_min_alignment = 512;
 496
 497         if (offset % dst_min_alignment)
 498         {
 499                 WARNING("offset 0x%x breaks required alignment 0x%x", offset, dst_min_alignment);
 500                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 501         }
 502
 503         for (i = 0; i < bank->num_sectors; i++)
 504         {
 505                 if (offset >= bank->sectors[i].offset)
 506                         first_sector = i;
 507                 if (offset + CEIL(count, dst_min_alignment) * dst_min_alignment > bank->sectors[i].offset)
 508                         last_sector = i;
 509         }
 510
 511         DEBUG("first_sector: %i, last_sector: %i", first_sector, last_sector);
 512
 513         /* check if exception vectors should be flashed */
 514         if ((offset == 0) && (count >= 0x20) && lpc2000_info->calc_checksum)
 515         {
 516                 u32 checksum = 0;
 517                 int i = 0;
 518                 for (i = 0; i < 8; i++)
 519                 {
 520                         DEBUG("0x%2.2x: 0x%8.8x", i * 4, buf_get_u32(buffer + (i * 4), 0, 32));
 521                         if (i != 5)
 522                                 checksum += buf_get_u32(buffer + (i * 4), 0, 32);
 523                 }
 524                 checksum = 0 - checksum;
 525                 DEBUG("checksum: 0x%8.8x", checksum);
 526                 buf_set_u32(buffer + 0x14, 0, 32, checksum);
 527         }
 528
 529         while (bytes_remaining > 0)
 530         {
 531                 u32 thisrun_bytes;
 532                 if (bytes_remaining >= 4096)
 533                         thisrun_bytes = 4096;
 534                 else if (bytes_remaining >= 1024)
 535                         thisrun_bytes = 1024;
 536                 else if ((bytes_remaining >= 512) || (!lpc2000_info->cmd51_can_256b))
 537                         thisrun_bytes = 512;
 538                 else
 539                         thisrun_bytes = 256;
 540
 541                 /* Prepare sectors */
 542                 param_table[0] = first_sector;
 543                 param_table[1] = last_sector;
 544                 status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
 545                 switch (status_code)
 546                 {
 547                         case ERROR_FLASH_OPERATION_FAILED:
 548                                 return ERROR_FLASH_OPERATION_FAILED;
 549                         case LPC2000_CMD_SUCCESS:
 550                                 break;
 551                         case LPC2000_INVALID_SECTOR:
 552                                 return ERROR_FLASH_SECTOR_INVALID;
 553                                 break;
 554                         default:
 555                                 WARNING("lpc2000 prepare sectors returned %i", status_code);
 556                                 return ERROR_FLASH_OPERATION_FAILED;
 557                 }
 558
 559                 if (bytes_remaining >= thisrun_bytes)
 560                 {
 561                         if (target_write_buffer(lpc2000_info->target, download_area->address, thisrun_bytes, buffer + bytes_written) != ERROR_OK)
 562                         {
 563                                 target_free_working_area(target, download_area);
 564                                 return ERROR_FLASH_OPERATION_FAILED;
 565                         }
 566                 }
 567                 else
 568                 {
 569                         u8 *last_buffer = malloc(thisrun_bytes);
 570                         int i;
 571                         memcpy(last_buffer, buffer + bytes_written, bytes_remaining);
 572                         for (i = bytes_remaining; i < thisrun_bytes; i++)
 573                                 last_buffer[i] = 0xff;
 574                         target_write_buffer(lpc2000_info->target, download_area->address, thisrun_bytes, last_buffer);
 575                         free(last_buffer);
 576                 }
 577
 578                 DEBUG("writing 0x%x bytes to address 0x%x", thisrun_bytes, bank->base + offset + bytes_written);
 579
 580                 /* Write data */
 581                 param_table[0] = bank->base + offset + bytes_written;
 582                 param_table[1] = download_area->address;
 583                 param_table[2] = thisrun_bytes;
 584                 param_table[3] = lpc2000_info->cclk;
 585                 status_code = lpc2000_iap_call(bank, 51, param_table, result_table);
 586                 switch (status_code)
 587                 {
 588                         case ERROR_FLASH_OPERATION_FAILED:
 589                                 return ERROR_FLASH_OPERATION_FAILED;
 590                         case LPC2000_CMD_SUCCESS:
 591                                 break;
 592                         case LPC2000_INVALID_SECTOR:
 593                                 return ERROR_FLASH_SECTOR_INVALID;
 594                                 break;
 595                         default:
 596                                 WARNING("lpc2000 returned %i", status_code);
 597                                 return ERROR_FLASH_OPERATION_FAILED;
 598                 }
 599
 600                 if (bytes_remaining > thisrun_bytes)
 601                         bytes_remaining -= thisrun_bytes;
 602                 else
 603                         bytes_remaining = 0;
 604                 bytes_written += thisrun_bytes;
 605         }
 606
 607         target_free_working_area(target, download_area);
 608
 609         return ERROR_OK;
 610 }
 611
 612 int lpc2000_probe(struct flash_bank_s *bank)
 613 {
 614         /* we can't probe on an lpc2000
 615          * if this is an lpc2xxx, it has the configured flash
 616          */
 617         return ERROR_OK;
 618 }
 619
 620 int lpc2000_erase_check(struct flash_bank_s *bank)
 621 {
 622         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 623
 624         if (lpc2000_info->target->state != TARGET_HALTED)
 625         {
 626                 return ERROR_TARGET_NOT_HALTED;
 627         }
 628
 629         return lpc2000_iap_blank_check(bank, 0, bank->num_sectors - 1);
 630 }
 631
 632 int lpc2000_protect_check(struct flash_bank_s *bank)
 633 {
 634         /* sectors are always protected */
 635         return ERROR_OK;
 636 }
 637
 638 int lpc2000_info(struct flash_bank_s *bank, char *buf, int buf_size)
 639 {
 640         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 641
 642         snprintf(buf, buf_size, "lpc2000 flash driver variant: %i, clk: %i", lpc2000_info->variant, lpc2000_info->cclk);
 643
 644         return ERROR_OK;
 645 }
 646
 647 int lpc2000_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 648 {
 649         flash_bank_t *bank;
 650         u32 param_table[5];
 651         u32 result_table[2];
 652         int status_code;
 653         lpc2000_flash_bank_t *lpc2000_info;
 654
 655         if (argc < 1)
 656         {
 657                 command_print(cmd_ctx, "usage: lpc2000 part_id <num>");
 658                 return ERROR_OK;
 659         }
 660
 661         bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 662         if (!bank)
 663         {
 664                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 665                 return ERROR_OK;
 666         }
 667
 668         lpc2000_info = bank->driver_priv;
 669         if (lpc2000_info->target->state != TARGET_HALTED)
 670         {
 671                 return ERROR_TARGET_NOT_HALTED;
 672         }
 673
 674         if ((status_code = lpc2000_iap_call(bank, 54, param_table, result_table)) != 0x0)
 675         {
 676                 if (status_code == ERROR_FLASH_OPERATION_FAILED)
 677                 {
 678                         command_print(cmd_ctx, "no sufficient working area specified, can't access LPC2000 IAP interface");
 679                         return ERROR_OK;
 680                 }
 681                 command_print(cmd_ctx, "lpc2000 IAP returned status code %i", status_code);
 682         }
 683         else
 684         {
 685                 command_print(cmd_ctx, "lpc2000 part id: 0x%8.8x", result_table[0]);
 686         }
 687
 688         return ERROR_OK;
 689 }