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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  * - 2101|2|3
  50  */
  51
  52 int lpc2000_register_commands(struct command_context_s *cmd_ctx);
  53 int lpc2000_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
  54 int lpc2000_erase(struct flash_bank_s *bank, int first, int last);
  55 int lpc2000_protect(struct flash_bank_s *bank, int set, int first, int last);
  56 int lpc2000_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
  57 int lpc2000_probe(struct flash_bank_s *bank);
  58 int lpc2000_erase_check(struct flash_bank_s *bank);
  59 int lpc2000_protect_check(struct flash_bank_s *bank);
  60 int lpc2000_info(struct flash_bank_s *bank, char *buf, int buf_size);
  61
  62 int lpc2000_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63
  64 flash_driver_t lpc2000_flash =
  65 {
  66         .name = "lpc2000",
  67         .register_commands = lpc2000_register_commands,
  68         .flash_bank_command = lpc2000_flash_bank_command,
  69         .erase = lpc2000_erase,
  70         .protect = lpc2000_protect,
  71         .write = lpc2000_write,
  72         .probe = lpc2000_probe,
  73         .erase_check = lpc2000_erase_check,
  74         .protect_check = lpc2000_protect_check,
  75         .info = lpc2000_info
  76 };
  77
  78 int lpc2000_register_commands(struct command_context_s *cmd_ctx)
  79 {
  80         command_t *lpc2000_cmd = register_command(cmd_ctx, NULL, "lpc2000", NULL, COMMAND_ANY, NULL);
  81
  82         register_command(cmd_ctx, lpc2000_cmd, "part_id", lpc2000_handle_part_id_command, COMMAND_EXEC,
  83                                          "print part id of lpc2000 flash bank <num>");
  84
  85         return ERROR_OK;
  86 }
  87
  88 int lpc2000_build_sector_list(struct flash_bank_s *bank)
  89 {
  90         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
  91
  92         if (lpc2000_info->variant == 1)
  93         {
  94                 int i = 0;
  95                 u32 offset = 0;
  96
  97                 /* variant 1 has different layout for 128kb and 256kb flashes */
  98                 if (bank->size == 128 * 1024)
  99                 {
 100                         bank->num_sectors = 16;
 101                         bank->sectors = malloc(sizeof(flash_sector_t) * 16);
 102                         for (i = 0; i < 16; i++)
 103                         {
 104                                 bank->sectors[i].offset = offset;
 105                                 bank->sectors[i].size = 8 * 1024;
 106                                 offset += bank->sectors[i].size;
 107                                 bank->sectors[i].is_erased = -1;
 108                                 bank->sectors[i].is_protected = 1;
 109                         }
 110                 }
 111                 else if (bank->size == 256 * 1024)
 112                 {
 113                         bank->num_sectors = 18;
 114                         bank->sectors = malloc(sizeof(flash_sector_t) * 18);
 115
 116                         for (i = 0; i < 8; i++)
 117                         {
 118                                 bank->sectors[i].offset = offset;
 119                                 bank->sectors[i].size = 8 * 1024;
 120                                 offset += bank->sectors[i].size;
 121                                 bank->sectors[i].is_erased = -1;
 122                                 bank->sectors[i].is_protected = 1;
 123                         }
 124                         for (i = 8; i < 10; i++)
 125                         {
 126                                 bank->sectors[i].offset = offset;
 127                                 bank->sectors[i].size = 64 * 1024;
 128                                 offset += bank->sectors[i].size;
 129                                 bank->sectors[i].is_erased = -1;
 130                                 bank->sectors[i].is_protected = 1;
 131                         }
 132                         for (i = 10; i < 18; i++)
 133                         {
 134                                 bank->sectors[i].offset = offset;
 135                                 bank->sectors[i].size = 8 * 1024;
 136                                 offset += bank->sectors[i].size;
 137                                 bank->sectors[i].is_erased = -1;
 138                                 bank->sectors[i].is_protected = 1;
 139                         }
 140                 }
 141                 else
 142                 {
 143                         ERROR("BUG: unknown bank->size encountered");
 144                         exit(-1);
 145                 }
 146         }
 147         else if (lpc2000_info->variant == 2)
 148         {
 149                 int num_sectors;
 150                 int i;
 151                 u32 offset = 0;
 152
 153                 /* variant 2 has a uniform layout, only number of sectors differs */
 154                 switch (bank->size)
 155                 {
 156                         case 8 * 1024:
 157                                 num_sectors = 2;
 158                                 break;
 159                         case 16 * 1024:
 160                                 num_sectors = 4;
 161                                 break;
 162                         case 32 * 1024:
 163                                 num_sectors = 8;
 164                                 break;
 165                         case 64 * 1024:
 166                                 num_sectors = 9;
 167                                 break;
 168                         case 128 * 1024:
 169                                 num_sectors = 11;
 170                                 break;
 171                         case 256 * 1024:
 172                                 num_sectors = 15;
 173                                 break;
 174                         case 500 * 1024:
 175                                 num_sectors = 27;
 176                                 break;
 177                         default:
 178                                 ERROR("BUG: unknown bank->size encountered");
 179                                 exit(-1);
 180                                 break;
 181                 }
 182
 183                 bank->num_sectors = num_sectors;
 184                 bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);
 185
 186                 for (i = 0; i < num_sectors; i++)
 187                 {
 188                         if ((i >= 0) && (i < 8))
 189                         {
 190                                 bank->sectors[i].offset = offset;
 191                                 bank->sectors[i].size = 4 * 1024;
 192                                 offset += bank->sectors[i].size;
 193                                 bank->sectors[i].is_erased = -1;
 194                                 bank->sectors[i].is_protected = 1;
 195                         }
 196                         if ((i >= 8) && (i < 22))
 197                         {
 198                                 bank->sectors[i].offset = offset;
 199                                 bank->sectors[i].size = 32 * 1024;
 200                                 offset += bank->sectors[i].size;
 201                                 bank->sectors[i].is_erased = -1;
 202                                 bank->sectors[i].is_protected = 1;
 203                         }
 204                         if ((i >= 22) && (i < 27))
 205                         {
 206                                 bank->sectors[i].offset = offset;
 207                                 bank->sectors[i].size = 4 * 1024;
 208                                 offset += bank->sectors[i].size;
 209                                 bank->sectors[i].is_erased = -1;
 210                                 bank->sectors[i].is_protected = 1;
 211                         }
 212                 }
 213         }
 214         else
 215         {
 216                 ERROR("BUG: unknown lpc2000_info->variant encountered");
 217                 exit(-1);
 218         }
 219
 220         return ERROR_OK;
 221 }
 222
 223 /* call LPC2000 IAP function
 224  * uses 172 bytes working area
 225  * 0x0 to 0x7: jump gate (BX to thumb state, b -2 to wait)
 226  * 0x8 to 0x1f: command parameter table
 227  * 0x20 to 0x2b: command result table
 228  * 0x2c to 0xac: stack (only 128b needed)
 229  */
 230 int lpc2000_iap_call(flash_bank_t *bank, int code, u32 param_table[5], u32 result_table[2])
 231 {
 232         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 233         target_t *target = lpc2000_info->target;
 234         mem_param_t mem_params[2];
 235         reg_param_t reg_params[5];
 236         armv4_5_algorithm_t armv4_5_info;
 237         u32 status_code;
 238
 239         /* regrab previously allocated working_area, or allocate a new one */
 240         if (!lpc2000_info->iap_working_area)
 241         {
 242                 u8 jump_gate[8];
 243
 244                 /* make sure we have a working area */
 245                 if (target_alloc_working_area(target, 172, &lpc2000_info->iap_working_area) != ERROR_OK)
 246                 {
 247                         ERROR("no working area specified, can't write LPC2000 internal flash");
 248                         return ERROR_FLASH_OPERATION_FAILED;
 249                 }
 250
 251                 /* write IAP code to working area */
 252                 target_buffer_set_u32(target, jump_gate, ARMV4_5_BX(12));
 253                 target_buffer_set_u32(target, jump_gate + 4, ARMV4_5_B(0xfffffe, 0));
 254                 target->type->write_memory(target, lpc2000_info->iap_working_area->address, 4, 2, jump_gate);
 255         }
 256
 257         armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
 258         armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
 259         armv4_5_info.core_state = ARMV4_5_STATE_ARM;
 260
 261         /* command parameter table */
 262         init_mem_param(&mem_params[0], lpc2000_info->iap_working_area->address + 8, 4 * 6, PARAM_OUT);
 263         target_buffer_set_u32(target, mem_params[0].value, code);
 264         target_buffer_set_u32(target, mem_params[0].value + 0x4, param_table[0]);
 265         target_buffer_set_u32(target, mem_params[0].value + 0x8, param_table[1]);
 266         target_buffer_set_u32(target, mem_params[0].value + 0xc, param_table[2]);
 267         target_buffer_set_u32(target, mem_params[0].value + 0x10, param_table[3]);
 268         target_buffer_set_u32(target, mem_params[0].value + 0x14, param_table[4]);
 269
 270         init_reg_param(&reg_params[0], "r0", 32, PARAM_OUT);
 271         buf_set_u32(reg_params[0].value, 0, 32, lpc2000_info->iap_working_area->address + 0x8);
 272
 273         /* command result table */
 274         init_mem_param(&mem_params[1], lpc2000_info->iap_working_area->address + 0x20, 4 * 3, PARAM_IN);
 275
 276         init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT);
 277         buf_set_u32(reg_params[1].value, 0, 32, lpc2000_info->iap_working_area->address + 0x20);
 278
 279         /* IAP entry point */
 280         init_reg_param(&reg_params[2], "r12", 32, PARAM_OUT);
 281         buf_set_u32(reg_params[2].value, 0, 32, 0x7ffffff1);
 282
 283         /* IAP stack */
 284         init_reg_param(&reg_params[3], "r13_svc", 32, PARAM_OUT);
 285         buf_set_u32(reg_params[3].value, 0, 32, lpc2000_info->iap_working_area->address + 0xac);
 286
 287         /* return address */
 288         init_reg_param(&reg_params[4], "lr_svc", 32, PARAM_OUT);
 289         buf_set_u32(reg_params[4].value, 0, 32, lpc2000_info->iap_working_area->address + 0x4);
 290
 291         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);
 292
 293         status_code = buf_get_u32(mem_params[1].value, 0, 32);
 294         result_table[0] = target_buffer_get_u32(target, mem_params[1].value);
 295         result_table[1] = target_buffer_get_u32(target, mem_params[1].value + 4);
 296
 297         destroy_mem_param(&mem_params[0]);
 298         destroy_mem_param(&mem_params[1]);
 299
 300         destroy_reg_param(&reg_params[0]);
 301         destroy_reg_param(&reg_params[1]);
 302         destroy_reg_param(&reg_params[2]);
 303         destroy_reg_param(&reg_params[3]);
 304         destroy_reg_param(&reg_params[4]);
 305
 306         return status_code;
 307 }
 308
 309 int lpc2000_iap_blank_check(struct flash_bank_s *bank, int first, int last)
 310 {
 311         u32 param_table[5];
 312         u32 result_table[2];
 313         int status_code;
 314         int i;
 315
 316         if ((first < 0) || (last > bank->num_sectors))
 317                 return ERROR_FLASH_SECTOR_INVALID;
 318
 319         for (i = first; i <= last; i++)
 320         {
 321                 /* check single sector */
 322                 param_table[0] = param_table[1] = i;
 323                 status_code = lpc2000_iap_call(bank, 53, param_table, result_table);
 324
 325                 switch (status_code)
 326                 {
 327                         case ERROR_FLASH_OPERATION_FAILED:
 328                                 return ERROR_FLASH_OPERATION_FAILED;
 329                         case LPC2000_CMD_SUCCESS:
 330                                 bank->sectors[i].is_erased = 1;
 331                                 break;
 332                         case LPC2000_SECTOR_NOT_BLANK:
 333                                 bank->sectors[i].is_erased = 0;
 334                                 break;
 335                         case LPC2000_INVALID_SECTOR:
 336                                 bank->sectors[i].is_erased = 0;
 337                                 break;
 338                         case LPC2000_BUSY:
 339                                 return ERROR_FLASH_BUSY;
 340                                 break;
 341                         default:
 342                                 ERROR("BUG: unknown LPC2000 status code");
 343                                 exit(-1);
 344                 }
 345         }
 346
 347         return ERROR_OK;
 348 }
 349
 350 /* flash_bank lpc2000 <base> <size> 0 0 <lpc_variant> <target#> <cclk> [calc_checksum]
 351  */
 352 int lpc2000_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
 353 {
 354         lpc2000_flash_bank_t *lpc2000_info;
 355
 356         if (argc < 8)
 357         {
 358                 WARNING("incomplete flash_bank lpc2000 configuration");
 359                 return ERROR_FLASH_BANK_INVALID;
 360         }
 361
 362         lpc2000_info = malloc(sizeof(lpc2000_flash_bank_t));
 363         bank->driver_priv = lpc2000_info;
 364
 365         if (strcmp(args[5], "lpc2000_v1") == 0)
 366         {
 367                 lpc2000_info->variant = 1;
 368                 lpc2000_info->cmd51_dst_boundary = 512;
 369                 lpc2000_info->cmd51_can_256b = 0;
 370                 lpc2000_info->cmd51_can_8192b = 1;
 371         }
 372         else if (strcmp(args[5], "lpc2000_v2") == 0)
 373         {
 374                 lpc2000_info->variant = 2;
 375                 lpc2000_info->cmd51_dst_boundary = 256;
 376                 lpc2000_info->cmd51_can_256b = 1;
 377                 lpc2000_info->cmd51_can_8192b = 0;
 378         }
 379         else
 380         {
 381                 ERROR("unknown LPC2000 variant");
 382                 free(lpc2000_info);
 383                 return ERROR_FLASH_BANK_INVALID;
 384         }
 385
 386         lpc2000_info->target = get_target_by_num(strtoul(args[6], NULL, 0));
 387         if (!lpc2000_info->target)
 388         {
 389                 ERROR("no target '%s' configured", args[6]);
 390                 exit(-1);
 391         }
 392         lpc2000_info->iap_working_area = NULL;
 393         lpc2000_info->cclk = strtoul(args[7], NULL, 0);
 394         lpc2000_info->calc_checksum = 0;
 395         lpc2000_build_sector_list(bank);
 396
 397
 398         if (argc >= 9)
 399         {
 400                 if (strcmp(args[8], "calc_checksum") == 0)
 401                         lpc2000_info->calc_checksum = 1;
 402         }
 403
 404         return ERROR_OK;
 405 }
 406
 407 int lpc2000_erase(struct flash_bank_s *bank, int first, int last)
 408 {
 409         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 410         u32 param_table[5];
 411         u32 result_table[2];
 412         int status_code;
 413
 414         if (lpc2000_info->target->state != TARGET_HALTED)
 415         {
 416                 return ERROR_TARGET_NOT_HALTED;
 417         }
 418
 419         if ((first < 0) || (last < first) || (last >= bank->num_sectors))
 420         {
 421                 return ERROR_FLASH_SECTOR_INVALID;
 422         }
 423
 424         param_table[0] = first;
 425         param_table[1] = last;
 426         param_table[2] = lpc2000_info->cclk;
 427
 428         /* Prepare sectors */
 429         status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
 430         switch (status_code)
 431         {
 432                 case ERROR_FLASH_OPERATION_FAILED:
 433                         return ERROR_FLASH_OPERATION_FAILED;
 434                 case LPC2000_CMD_SUCCESS:
 435                         break;
 436                 case LPC2000_INVALID_SECTOR:
 437                         return ERROR_FLASH_SECTOR_INVALID;
 438                         break;
 439                 default:
 440                         WARNING("lpc2000 prepare sectors returned %i", status_code);
 441                         return ERROR_FLASH_OPERATION_FAILED;
 442         }
 443
 444         /* Erase sectors */
 445         status_code = lpc2000_iap_call(bank, 52, param_table, result_table);
 446         switch (status_code)
 447         {
 448                 case ERROR_FLASH_OPERATION_FAILED:
 449                         return ERROR_FLASH_OPERATION_FAILED;
 450                 case LPC2000_CMD_SUCCESS:
 451                         break;
 452                 case LPC2000_INVALID_SECTOR:
 453                         return ERROR_FLASH_SECTOR_INVALID;
 454                         break;
 455                 default:
 456                         WARNING("lpc2000 erase sectors returned %i", status_code);
 457                         return ERROR_FLASH_OPERATION_FAILED;
 458         }
 459
 460         return ERROR_OK;
 461 }
 462
 463 int lpc2000_protect(struct flash_bank_s *bank, int set, int first, int last)
 464 {
 465         /* can't protect/unprotect on the lpc2000 */
 466         return ERROR_OK;
 467 }
 468
 469 int lpc2000_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
 470 {
 471         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 472         target_t *target = lpc2000_info->target;
 473         u32 dst_min_alignment;
 474         u32 bytes_remaining = count;
 475         u32 bytes_written = 0;
 476         int first_sector = 0;
 477         int last_sector = 0;
 478         u32 param_table[5];
 479         u32 result_table[2];
 480         int status_code;
 481         int i;
 482         working_area_t *download_area;
 483
 484         if (lpc2000_info->target->state != TARGET_HALTED)
 485         {
 486                 return ERROR_TARGET_NOT_HALTED;
 487         }
 488
 489         /* allocate a working area */
 490         if (target_alloc_working_area(target, 4096, &download_area) != ERROR_OK)
 491         {
 492                 ERROR("no working area specified, can't write LPC2000 internal flash");
 493                 return ERROR_FLASH_OPERATION_FAILED;
 494         }
 495
 496         if (offset + count > bank->size)
 497                 return ERROR_FLASH_DST_OUT_OF_BANK;
 498
 499         if (lpc2000_info->cmd51_can_256b)
 500                 dst_min_alignment = 256;
 501         else
 502                 dst_min_alignment = 512;
 503
 504         if (offset % dst_min_alignment)
 505         {
 506                 WARNING("offset 0x%x breaks required alignment 0x%x", offset, dst_min_alignment);
 507                 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
 508         }
 509
 510         for (i = 0; i < bank->num_sectors; i++)
 511         {
 512                 if (offset >= bank->sectors[i].offset)
 513                         first_sector = i;
 514                 if (offset + CEIL(count, dst_min_alignment) * dst_min_alignment > bank->sectors[i].offset)
 515                         last_sector = i;
 516         }
 517
 518         DEBUG("first_sector: %i, last_sector: %i", first_sector, last_sector);
 519
 520         /* check if exception vectors should be flashed */
 521         if ((offset == 0) && (count >= 0x20) && lpc2000_info->calc_checksum)
 522         {
 523                 u32 checksum = 0;
 524                 int i = 0;
 525                 for (i = 0; i < 8; i++)
 526                 {
 527                         DEBUG("0x%2.2x: 0x%8.8x", i * 4, buf_get_u32(buffer + (i * 4), 0, 32));
 528                         if (i != 5)
 529                                 checksum += buf_get_u32(buffer + (i * 4), 0, 32);
 530                 }
 531                 checksum = 0 - checksum;
 532                 DEBUG("checksum: 0x%8.8x", checksum);
 533                 buf_set_u32(buffer + 0x14, 0, 32, checksum);
 534         }
 535
 536         while (bytes_remaining > 0)
 537         {
 538                 u32 thisrun_bytes;
 539                 if (bytes_remaining >= 4096)
 540                         thisrun_bytes = 4096;
 541                 else if (bytes_remaining >= 1024)
 542                         thisrun_bytes = 1024;
 543                 else if ((bytes_remaining >= 512) || (!lpc2000_info->cmd51_can_256b))
 544                         thisrun_bytes = 512;
 545                 else
 546                         thisrun_bytes = 256;
 547
 548                 /* Prepare sectors */
 549                 param_table[0] = first_sector;
 550                 param_table[1] = last_sector;
 551                 status_code = lpc2000_iap_call(bank, 50, param_table, result_table);
 552                 switch (status_code)
 553                 {
 554                         case ERROR_FLASH_OPERATION_FAILED:
 555                                 return ERROR_FLASH_OPERATION_FAILED;
 556                         case LPC2000_CMD_SUCCESS:
 557                                 break;
 558                         case LPC2000_INVALID_SECTOR:
 559                                 return ERROR_FLASH_SECTOR_INVALID;
 560                                 break;
 561                         default:
 562                                 WARNING("lpc2000 prepare sectors returned %i", status_code);
 563                                 return ERROR_FLASH_OPERATION_FAILED;
 564                 }
 565
 566                 if (bytes_remaining >= thisrun_bytes)
 567                 {
 568                         if (target_write_buffer(lpc2000_info->target, download_area->address, thisrun_bytes, buffer + bytes_written) != ERROR_OK)
 569                         {
 570                                 target_free_working_area(target, download_area);
 571                                 return ERROR_FLASH_OPERATION_FAILED;
 572                         }
 573                 }
 574                 else
 575                 {
 576                         u8 *last_buffer = malloc(thisrun_bytes);
 577                         int i;
 578                         memcpy(last_buffer, buffer + bytes_written, bytes_remaining);
 579                         for (i = bytes_remaining; i < thisrun_bytes; i++)
 580                                 last_buffer[i] = 0xff;
 581                         target_write_buffer(lpc2000_info->target, download_area->address, thisrun_bytes, last_buffer);
 582                         free(last_buffer);
 583                 }
 584
 585                 DEBUG("writing 0x%x bytes to address 0x%x", thisrun_bytes, bank->base + offset + bytes_written);
 586
 587                 /* Write data */
 588                 param_table[0] = bank->base + offset + bytes_written;
 589                 param_table[1] = download_area->address;
 590                 param_table[2] = thisrun_bytes;
 591                 param_table[3] = lpc2000_info->cclk;
 592                 status_code = lpc2000_iap_call(bank, 51, param_table, result_table);
 593                 switch (status_code)
 594                 {
 595                         case ERROR_FLASH_OPERATION_FAILED:
 596                                 return ERROR_FLASH_OPERATION_FAILED;
 597                         case LPC2000_CMD_SUCCESS:
 598                                 break;
 599                         case LPC2000_INVALID_SECTOR:
 600                                 return ERROR_FLASH_SECTOR_INVALID;
 601                                 break;
 602                         default:
 603                                 WARNING("lpc2000 returned %i", status_code);
 604                                 return ERROR_FLASH_OPERATION_FAILED;
 605                 }
 606
 607                 if (bytes_remaining > thisrun_bytes)
 608                         bytes_remaining -= thisrun_bytes;
 609                 else
 610                         bytes_remaining = 0;
 611                 bytes_written += thisrun_bytes;
 612         }
 613
 614         target_free_working_area(target, download_area);
 615
 616         return ERROR_OK;
 617 }
 618
 619 int lpc2000_probe(struct flash_bank_s *bank)
 620 {
 621         /* we can't probe on an lpc2000
 622          * if this is an lpc2xxx, it has the configured flash
 623          */
 624         return ERROR_OK;
 625 }
 626
 627 int lpc2000_erase_check(struct flash_bank_s *bank)
 628 {
 629         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 630
 631         if (lpc2000_info->target->state != TARGET_HALTED)
 632         {
 633                 return ERROR_TARGET_NOT_HALTED;
 634         }
 635
 636         return lpc2000_iap_blank_check(bank, 0, bank->num_sectors - 1);
 637 }
 638
 639 int lpc2000_protect_check(struct flash_bank_s *bank)
 640 {
 641         /* sectors are always protected */
 642         return ERROR_OK;
 643 }
 644
 645 int lpc2000_info(struct flash_bank_s *bank, char *buf, int buf_size)
 646 {
 647         lpc2000_flash_bank_t *lpc2000_info = bank->driver_priv;
 648
 649         snprintf(buf, buf_size, "lpc2000 flash driver variant: %i, clk: %i", lpc2000_info->variant, lpc2000_info->cclk);
 650
 651         return ERROR_OK;
 652 }
 653
 654 int lpc2000_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 655 {
 656         flash_bank_t *bank;
 657         u32 param_table[5];
 658         u32 result_table[2];
 659         int status_code;
 660         lpc2000_flash_bank_t *lpc2000_info;
 661
 662         if (argc < 1)
 663         {
 664                 command_print(cmd_ctx, "usage: lpc2000 part_id <num>");
 665                 return ERROR_OK;
 666         }
 667
 668         bank = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
 669         if (!bank)
 670         {
 671                 command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
 672                 return ERROR_OK;
 673         }
 674
 675         lpc2000_info = bank->driver_priv;
 676         if (lpc2000_info->target->state != TARGET_HALTED)
 677         {
 678                 return ERROR_TARGET_NOT_HALTED;
 679         }
 680
 681         if ((status_code = lpc2000_iap_call(bank, 54, param_table, result_table)) != 0x0)
 682         {
 683                 if (status_code == ERROR_FLASH_OPERATION_FAILED)
 684                 {
 685                         command_print(cmd_ctx, "no sufficient working area specified, can't access LPC2000 IAP interface");
 686                         return ERROR_OK;
 687                 }
 688                 command_print(cmd_ctx, "lpc2000 IAP returned status code %i", status_code);
 689         }
 690         else
 691         {
 692                 command_print(cmd_ctx, "lpc2000 part id: 0x%8.8x", result_table[0]);
 693         }
 694
 695         return ERROR_OK;
 696 }