tools/imximage.c

   1 /*
   2  * (C) Copyright 2009
   3  * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
   4  *
   5  * (C) Copyright 2008
   6  * Marvell Semiconductor <www.marvell.com>
   7  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>
   8  *
   9  * SPDX-License-Identifier:     GPL-2.0+
  10  */
  11
  12 #include "imagetool.h"
  13 #include <image.h>
  14 #include "imximage.h"
  15
  16 #define UNDEFINED 0xFFFFFFFF
  17
  18 /*
  19  * Supported commands for configuration file
  20  */
  21 static table_entry_t imximage_cmds[] = {
  22         {CMD_BOOT_FROM,         "BOOT_FROM",            "boot command",   },
  23         {CMD_BOOT_OFFSET,       "BOOT_OFFSET",          "Boot offset",    },
  24         {CMD_WRITE_DATA,        "DATA",                 "Reg Write Data", },
  25         {CMD_WRITE_CLR_BIT,     "CLR_BIT",              "Reg clear bit",  },
  26         {CMD_CHECK_BITS_SET,    "CHECK_BITS_SET",   "Reg Check bits set", },
  27         {CMD_CHECK_BITS_CLR,    "CHECK_BITS_CLR",   "Reg Check bits clr", },
  28         {CMD_CSF,               "CSF",           "Command Sequence File", },
  29         {CMD_IMAGE_VERSION,     "IMAGE_VERSION",        "image version",  },
  30         {-1,                    "",                     "",               },
  31 };
  32
  33 /*
  34  * Supported Boot options for configuration file
  35  * this is needed to set the correct flash offset
  36  */
  37 static table_entry_t imximage_boot_offset[] = {
  38         {FLASH_OFFSET_ONENAND,  "onenand",      "OneNAND Flash",},
  39         {FLASH_OFFSET_NAND,     "nand",         "NAND Flash",   },
  40         {FLASH_OFFSET_NOR,      "nor",          "NOR Flash",    },
  41         {FLASH_OFFSET_SATA,     "sata",         "SATA Disk",    },
  42         {FLASH_OFFSET_SD,       "sd",           "SD Card",      },
  43         {FLASH_OFFSET_SPI,      "spi",          "SPI Flash",    },
  44         {FLASH_OFFSET_QSPI,     "qspi",         "QSPI NOR Flash",},
  45         {-1,                    "",             "Invalid",      },
  46 };
  47
  48 /*
  49  * Supported Boot options for configuration file
  50  * this is needed to determine the initial load size
  51  */
  52 static table_entry_t imximage_boot_loadsize[] = {
  53         {FLASH_LOADSIZE_ONENAND,        "onenand",      "OneNAND Flash",},
  54         {FLASH_LOADSIZE_NAND,           "nand",         "NAND Flash",   },
  55         {FLASH_LOADSIZE_NOR,            "nor",          "NOR Flash",    },
  56         {FLASH_LOADSIZE_SATA,           "sata",         "SATA Disk",    },
  57         {FLASH_LOADSIZE_SD,             "sd",           "SD Card",      },
  58         {FLASH_LOADSIZE_SPI,            "spi",          "SPI Flash",    },
  59         {FLASH_LOADSIZE_QSPI,           "qspi",         "QSPI NOR Flash",},
  60         {-1,                            "",             "Invalid",      },
  61 };
  62
  63 /*
  64  * IMXIMAGE version definition for i.MX chips
  65  */
  66 static table_entry_t imximage_versions[] = {
  67         {IMXIMAGE_V1,   "",     " (i.MX25/35/51 compatible)", },
  68         {IMXIMAGE_V2,   "",     " (i.MX53/6/7 compatible)",   },
  69         {-1,            "",     " (Invalid)",                 },
  70 };
  71
  72 static struct imx_header imximage_header;
  73 static uint32_t imximage_version;
  74 /*
  75  * Image Vector Table Offset
  76  * Initialized to a wrong not 4-bytes aligned address to
  77  * check if it is was set by the cfg file.
  78  */
  79 static uint32_t imximage_ivt_offset = UNDEFINED;
  80 static uint32_t imximage_csf_size = UNDEFINED;
  81 /* Initial Load Region Size */
  82 static uint32_t imximage_init_loadsize;
  83
  84 static set_dcd_val_t set_dcd_val;
  85 static set_dcd_param_t set_dcd_param;
  86 static set_dcd_rst_t set_dcd_rst;
  87 static set_imx_hdr_t set_imx_hdr;
  88 static uint32_t max_dcd_entries;
  89 static uint32_t *header_size_ptr;
  90 static uint32_t *csf_ptr;
  91
  92 static uint32_t get_cfg_value(char *token, char *name,  int linenr)
  93 {
  94         char *endptr;
  95         uint32_t value;
  96
  97         errno = 0;
  98         value = strtoul(token, &endptr, 16);
  99         if (errno || (token == endptr)) {
 100                 fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n",
 101                         name,  linenr, token);
 102                 exit(EXIT_FAILURE);
 103         }
 104         return value;
 105 }
 106
 107 static uint32_t detect_imximage_version(struct imx_header *imx_hdr)
 108 {
 109         imx_header_v1_t *hdr_v1 = &imx_hdr->header.hdr_v1;
 110         imx_header_v2_t *hdr_v2 = &imx_hdr->header.hdr_v2;
 111         flash_header_v1_t *fhdr_v1 = &hdr_v1->fhdr;
 112         flash_header_v2_t *fhdr_v2 = &hdr_v2->fhdr;
 113
 114         /* Try to detect V1 */
 115         if ((fhdr_v1->app_code_barker == APP_CODE_BARKER) &&
 116                 (hdr_v1->dcd_table.preamble.barker == DCD_BARKER))
 117                 return IMXIMAGE_V1;
 118
 119         /* Try to detect V2 */
 120         if ((fhdr_v2->header.tag == IVT_HEADER_TAG) &&
 121                 (hdr_v2->dcd_table.header.tag == DCD_HEADER_TAG))
 122                 return IMXIMAGE_V2;
 123
 124         return IMXIMAGE_VER_INVALID;
 125 }
 126
 127 static void err_imximage_version(int version)
 128 {
 129         fprintf(stderr,
 130                 "Error: Unsupported imximage version:%d\n", version);
 131
 132         exit(EXIT_FAILURE);
 133 }
 134
 135 static void set_dcd_val_v1(struct imx_header *imxhdr, char *name, int lineno,
 136                                         int fld, uint32_t value, uint32_t off)
 137 {
 138         dcd_v1_t *dcd_v1 = &imxhdr->header.hdr_v1.dcd_table;
 139
 140         switch (fld) {
 141         case CFG_REG_SIZE:
 142                 /* Byte, halfword, word */
 143                 if ((value != 1) && (value != 2) && (value != 4)) {
 144                         fprintf(stderr, "Error: %s[%d] - "
 145                                 "Invalid register size " "(%d)\n",
 146                                 name, lineno, value);
 147                         exit(EXIT_FAILURE);
 148                 }
 149                 dcd_v1->addr_data[off].type = value;
 150                 break;
 151         case CFG_REG_ADDRESS:
 152                 dcd_v1->addr_data[off].addr = value;
 153                 break;
 154         case CFG_REG_VALUE:
 155                 dcd_v1->addr_data[off].value = value;
 156                 break;
 157         default:
 158                 break;
 159
 160         }
 161 }
 162
 163 static struct dcd_v2_cmd *gd_last_cmd;
 164
 165 static void set_dcd_param_v2(struct imx_header *imxhdr, uint32_t dcd_len,
 166                 int32_t cmd)
 167 {
 168         dcd_v2_t *dcd_v2 = &imxhdr->header.hdr_v2.dcd_table;
 169         struct dcd_v2_cmd *d = gd_last_cmd;
 170         struct dcd_v2_cmd *d2;
 171         int len;
 172
 173         if (!d)
 174                 d = &dcd_v2->dcd_cmd;
 175         d2 = d;
 176         len = be16_to_cpu(d->write_dcd_command.length);
 177         if (len > 4)
 178                 d2 = (struct dcd_v2_cmd *)(((char *)d) + len);
 179
 180         switch (cmd) {
 181         case CMD_WRITE_DATA:
 182                 if ((d->write_dcd_command.tag == DCD_WRITE_DATA_COMMAND_TAG) &&
 183                     (d->write_dcd_command.param == DCD_WRITE_DATA_PARAM))
 184                         break;
 185                 d = d2;
 186                 d->write_dcd_command.tag = DCD_WRITE_DATA_COMMAND_TAG;
 187                 d->write_dcd_command.length = cpu_to_be16(4);
 188                 d->write_dcd_command.param = DCD_WRITE_DATA_PARAM;
 189                 break;
 190         case CMD_WRITE_CLR_BIT:
 191                 if ((d->write_dcd_command.tag == DCD_WRITE_DATA_COMMAND_TAG) &&
 192                     (d->write_dcd_command.param == DCD_WRITE_CLR_BIT_PARAM))
 193                         break;
 194                 d = d2;
 195                 d->write_dcd_command.tag = DCD_WRITE_DATA_COMMAND_TAG;
 196                 d->write_dcd_command.length = cpu_to_be16(4);
 197                 d->write_dcd_command.param = DCD_WRITE_CLR_BIT_PARAM;
 198                 break;
 199         /*
 200          * Check data command only supports one entry,
 201          */
 202         case CMD_CHECK_BITS_SET:
 203                 d = d2;
 204                 d->write_dcd_command.tag = DCD_CHECK_DATA_COMMAND_TAG;
 205                 d->write_dcd_command.length = cpu_to_be16(4);
 206                 d->write_dcd_command.param = DCD_CHECK_BITS_SET_PARAM;
 207                 break;
 208         case CMD_CHECK_BITS_CLR:
 209                 d = d2;
 210                 d->write_dcd_command.tag = DCD_CHECK_DATA_COMMAND_TAG;
 211                 d->write_dcd_command.length = cpu_to_be16(4);
 212                 d->write_dcd_command.param = DCD_CHECK_BITS_SET_PARAM;
 213                 break;
 214         default:
 215                 break;
 216         }
 217         gd_last_cmd = d;
 218 }
 219
 220 static void set_dcd_val_v2(struct imx_header *imxhdr, char *name, int lineno,
 221                                         int fld, uint32_t value, uint32_t off)
 222 {
 223         struct dcd_v2_cmd *d = gd_last_cmd;
 224         int len;
 225
 226         len = be16_to_cpu(d->write_dcd_command.length);
 227         off = (len - 4) >> 3;
 228
 229         switch (fld) {
 230         case CFG_REG_ADDRESS:
 231                 d->addr_data[off].addr = cpu_to_be32(value);
 232                 break;
 233         case CFG_REG_VALUE:
 234                 d->addr_data[off].value = cpu_to_be32(value);
 235                 off++;
 236                 d->write_dcd_command.length = cpu_to_be16((off << 3) + 4);
 237                 break;
 238         default:
 239                 break;
 240
 241         }
 242 }
 243
 244 /*
 245  * Complete setting up the rest field of DCD of V1
 246  * such as barker code and DCD data length.
 247  */
 248 static void set_dcd_rst_v1(struct imx_header *imxhdr, uint32_t dcd_len,
 249                                                 char *name, int lineno)
 250 {
 251         dcd_v1_t *dcd_v1 = &imxhdr->header.hdr_v1.dcd_table;
 252
 253         dcd_v1->preamble.barker = DCD_BARKER;
 254         dcd_v1->preamble.length = dcd_len * sizeof(dcd_type_addr_data_t);
 255 }
 256
 257 /*
 258  * Complete setting up the reset field of DCD of V2
 259  * such as DCD tag, version, length, etc.
 260  */
 261 static void set_dcd_rst_v2(struct imx_header *imxhdr, uint32_t dcd_len,
 262                                                 char *name, int lineno)
 263 {
 264         dcd_v2_t *dcd_v2 = &imxhdr->header.hdr_v2.dcd_table;
 265         struct dcd_v2_cmd *d = gd_last_cmd;
 266         int len;
 267
 268         if (!d)
 269                 d = &dcd_v2->dcd_cmd;
 270         len = be16_to_cpu(d->write_dcd_command.length);
 271         if (len > 4)
 272                 d = (struct dcd_v2_cmd *)(((char *)d) + len);
 273
 274         len = (char *)d - (char *)&dcd_v2->header;
 275
 276         dcd_v2->header.tag = DCD_HEADER_TAG;
 277         dcd_v2->header.length = cpu_to_be16(len);
 278         dcd_v2->header.version = DCD_VERSION;
 279 }
 280
 281 static void set_imx_hdr_v1(struct imx_header *imxhdr, uint32_t dcd_len,
 282                 uint32_t entry_point, uint32_t flash_offset)
 283 {
 284         imx_header_v1_t *hdr_v1 = &imxhdr->header.hdr_v1;
 285         flash_header_v1_t *fhdr_v1 = &hdr_v1->fhdr;
 286         dcd_v1_t *dcd_v1 = &hdr_v1->dcd_table;
 287         uint32_t hdr_base;
 288         uint32_t header_length = (((char *)&dcd_v1->addr_data[dcd_len].addr)
 289                         - ((char *)imxhdr));
 290
 291         /* Set magic number */
 292         fhdr_v1->app_code_barker = APP_CODE_BARKER;
 293
 294         /* TODO: check i.MX image V1 handling, for now use 'old' style */
 295         hdr_base = entry_point - 4096;
 296         fhdr_v1->app_dest_ptr = hdr_base - flash_offset;
 297         fhdr_v1->app_code_jump_vector = entry_point;
 298
 299         fhdr_v1->dcd_ptr_ptr = hdr_base + offsetof(flash_header_v1_t, dcd_ptr);
 300         fhdr_v1->dcd_ptr = hdr_base + offsetof(imx_header_v1_t, dcd_table);
 301
 302         /* Security feature are not supported */
 303         fhdr_v1->app_code_csf = 0;
 304         fhdr_v1->super_root_key = 0;
 305         header_size_ptr = (uint32_t *)(((char *)imxhdr) + header_length - 4);
 306 }
 307
 308 static void set_imx_hdr_v2(struct imx_header *imxhdr, uint32_t dcd_len,
 309                 uint32_t entry_point, uint32_t flash_offset)
 310 {
 311         imx_header_v2_t *hdr_v2 = &imxhdr->header.hdr_v2;
 312         flash_header_v2_t *fhdr_v2 = &hdr_v2->fhdr;
 313         uint32_t hdr_base;
 314
 315         /* Set magic number */
 316         fhdr_v2->header.tag = IVT_HEADER_TAG; /* 0xD1 */
 317         fhdr_v2->header.length = cpu_to_be16(sizeof(flash_header_v2_t));
 318         fhdr_v2->header.version = IVT_VERSION; /* 0x40 */
 319
 320         fhdr_v2->entry = entry_point;
 321         fhdr_v2->reserved1 = fhdr_v2->reserved2 = 0;
 322         hdr_base = entry_point - imximage_init_loadsize +
 323                 flash_offset;
 324         fhdr_v2->self = hdr_base;
 325         if (dcd_len > 0)
 326                 fhdr_v2->dcd_ptr = hdr_base
 327                         + offsetof(imx_header_v2_t, dcd_table);
 328         else
 329                 fhdr_v2->dcd_ptr = 0;
 330         fhdr_v2->boot_data_ptr = hdr_base
 331                         + offsetof(imx_header_v2_t, boot_data);
 332         hdr_v2->boot_data.start = entry_point - imximage_init_loadsize;
 333
 334         fhdr_v2->csf = 0;
 335
 336         header_size_ptr = &hdr_v2->boot_data.size;
 337         csf_ptr = &fhdr_v2->csf;
 338 }
 339
 340 static void set_hdr_func(void)
 341 {
 342         switch (imximage_version) {
 343         case IMXIMAGE_V1:
 344                 set_dcd_val = set_dcd_val_v1;
 345                 set_dcd_param = NULL;
 346                 set_dcd_rst = set_dcd_rst_v1;
 347                 set_imx_hdr = set_imx_hdr_v1;
 348                 max_dcd_entries = MAX_HW_CFG_SIZE_V1;
 349                 break;
 350         case IMXIMAGE_V2:
 351                 gd_last_cmd = NULL;
 352                 set_dcd_val = set_dcd_val_v2;
 353                 set_dcd_param = set_dcd_param_v2;
 354                 set_dcd_rst = set_dcd_rst_v2;
 355                 set_imx_hdr = set_imx_hdr_v2;
 356                 max_dcd_entries = MAX_HW_CFG_SIZE_V2;
 357                 break;
 358         default:
 359                 err_imximage_version(imximage_version);
 360                 break;
 361         }
 362 }
 363
 364 static void print_hdr_v1(struct imx_header *imx_hdr)
 365 {
 366         imx_header_v1_t *hdr_v1 = &imx_hdr->header.hdr_v1;
 367         flash_header_v1_t *fhdr_v1 = &hdr_v1->fhdr;
 368         dcd_v1_t *dcd_v1 = &hdr_v1->dcd_table;
 369         uint32_t size, length, ver;
 370
 371         size = dcd_v1->preamble.length;
 372         if (size > (MAX_HW_CFG_SIZE_V1 * sizeof(dcd_type_addr_data_t))) {
 373                 fprintf(stderr,
 374                         "Error: Image corrupt DCD size %d exceed maximum %d\n",
 375                         (uint32_t)(size / sizeof(dcd_type_addr_data_t)),
 376                         MAX_HW_CFG_SIZE_V1);
 377                 exit(EXIT_FAILURE);
 378         }
 379
 380         length = dcd_v1->preamble.length / sizeof(dcd_type_addr_data_t);
 381         ver = detect_imximage_version(imx_hdr);
 382
 383         printf("Image Type:   Freescale IMX Boot Image\n");
 384         printf("Image Ver:    %x", ver);
 385         printf("%s\n", get_table_entry_name(imximage_versions, NULL, ver));
 386         printf("Data Size:    ");
 387         genimg_print_size(dcd_v1->addr_data[length].type);
 388         printf("Load Address: %08x\n", (uint32_t)fhdr_v1->app_dest_ptr);
 389         printf("Entry Point:  %08x\n", (uint32_t)fhdr_v1->app_code_jump_vector);
 390 }
 391
 392 static void print_hdr_v2(struct imx_header *imx_hdr)
 393 {
 394         imx_header_v2_t *hdr_v2 = &imx_hdr->header.hdr_v2;
 395         flash_header_v2_t *fhdr_v2 = &hdr_v2->fhdr;
 396         dcd_v2_t *dcd_v2 = &hdr_v2->dcd_table;
 397         uint32_t size, version;
 398
 399         size = be16_to_cpu(dcd_v2->header.length);
 400         if (size > (MAX_HW_CFG_SIZE_V2 * sizeof(dcd_addr_data_t)) + 8) {
 401                 fprintf(stderr,
 402                         "Error: Image corrupt DCD size %d exceed maximum %d\n",
 403                         (uint32_t)(size / sizeof(dcd_addr_data_t)),
 404                         MAX_HW_CFG_SIZE_V2);
 405                 exit(EXIT_FAILURE);
 406         }
 407
 408         version = detect_imximage_version(imx_hdr);
 409
 410         printf("Image Type:   Freescale IMX Boot Image\n");
 411         printf("Image Ver:    %x", version);
 412         printf("%s\n", get_table_entry_name(imximage_versions, NULL, version));
 413         printf("Data Size:    ");
 414         genimg_print_size(hdr_v2->boot_data.size);
 415         printf("Load Address: %08x\n", (uint32_t)fhdr_v2->boot_data_ptr);
 416         printf("Entry Point:  %08x\n", (uint32_t)fhdr_v2->entry);
 417         if (fhdr_v2->csf && (imximage_ivt_offset != UNDEFINED) &&
 418             (imximage_csf_size != UNDEFINED)) {
 419                 printf("HAB Blocks:   %08x %08x %08x\n",
 420                        (uint32_t)fhdr_v2->self, 0,
 421                        hdr_v2->boot_data.size - imximage_ivt_offset -
 422                        imximage_csf_size);
 423         }
 424 }
 425
 426 static void parse_cfg_cmd(struct imx_header *imxhdr, int32_t cmd, char *token,
 427                                 char *name, int lineno, int fld, int dcd_len)
 428 {
 429         int value;
 430         static int cmd_ver_first = ~0;
 431
 432         switch (cmd) {
 433         case CMD_IMAGE_VERSION:
 434                 imximage_version = get_cfg_value(token, name, lineno);
 435                 if (cmd_ver_first == 0) {
 436                         fprintf(stderr, "Error: %s[%d] - IMAGE_VERSION "
 437                                 "command need be the first before other "
 438                                 "valid command in the file\n", name, lineno);
 439                         exit(EXIT_FAILURE);
 440                 }
 441                 cmd_ver_first = 1;
 442                 set_hdr_func();
 443                 break;
 444         case CMD_BOOT_FROM:
 445                 imximage_ivt_offset = get_table_entry_id(imximage_boot_offset,
 446                                         "imximage boot option", token);
 447                 if (imximage_ivt_offset == -1) {
 448                         fprintf(stderr, "Error: %s[%d] -Invalid boot device"
 449                                 "(%s)\n", name, lineno, token);
 450                         exit(EXIT_FAILURE);
 451                 }
 452
 453                 imximage_init_loadsize =
 454                         get_table_entry_id(imximage_boot_loadsize,
 455                                            "imximage boot option", token);
 456
 457                 if (imximage_init_loadsize == -1) {
 458                         fprintf(stderr,
 459                                 "Error: %s[%d] -Invalid boot device(%s)\n",
 460                                 name, lineno, token);
 461                         exit(EXIT_FAILURE);
 462                 }
 463
 464                 /*
 465                  * The SOC loads from the storage starting at address 0
 466                  * then ensures that the load size contains the offset
 467                  */
 468                 if (imximage_init_loadsize < imximage_ivt_offset)
 469                         imximage_init_loadsize = imximage_ivt_offset;
 470                 if (unlikely(cmd_ver_first != 1))
 471                         cmd_ver_first = 0;
 472                 break;
 473         case CMD_BOOT_OFFSET:
 474                 imximage_ivt_offset = get_cfg_value(token, name, lineno);
 475                 if (unlikely(cmd_ver_first != 1))
 476                         cmd_ver_first = 0;
 477                 break;
 478         case CMD_WRITE_DATA:
 479         case CMD_WRITE_CLR_BIT:
 480         case CMD_CHECK_BITS_SET:
 481         case CMD_CHECK_BITS_CLR:
 482                 value = get_cfg_value(token, name, lineno);
 483                 if (set_dcd_param)
 484                         (*set_dcd_param)(imxhdr, dcd_len, cmd);
 485                 (*set_dcd_val)(imxhdr, name, lineno, fld, value, dcd_len);
 486                 if (unlikely(cmd_ver_first != 1))
 487                         cmd_ver_first = 0;
 488                 break;
 489         case CMD_CSF:
 490                 if (imximage_version != 2) {
 491                         fprintf(stderr,
 492                                 "Error: %s[%d] - CSF only supported for VERSION 2(%s)\n",
 493                                 name, lineno, token);
 494                         exit(EXIT_FAILURE);
 495                 }
 496                 imximage_csf_size = get_cfg_value(token, name, lineno);
 497                 if (unlikely(cmd_ver_first != 1))
 498                         cmd_ver_first = 0;
 499                 break;
 500         }
 501 }
 502
 503 static void parse_cfg_fld(struct imx_header *imxhdr, int32_t *cmd,
 504                 char *token, char *name, int lineno, int fld, int *dcd_len)
 505 {
 506         int value;
 507
 508         switch (fld) {
 509         case CFG_COMMAND:
 510                 *cmd = get_table_entry_id(imximage_cmds,
 511                         "imximage commands", token);
 512                 if (*cmd < 0) {
 513                         fprintf(stderr, "Error: %s[%d] - Invalid command"
 514                         "(%s)\n", name, lineno, token);
 515                         exit(EXIT_FAILURE);
 516                 }
 517                 break;
 518         case CFG_REG_SIZE:
 519                 parse_cfg_cmd(imxhdr, *cmd, token, name, lineno, fld, *dcd_len);
 520                 break;
 521         case CFG_REG_ADDRESS:
 522         case CFG_REG_VALUE:
 523                 switch(*cmd) {
 524                 case CMD_WRITE_DATA:
 525                 case CMD_WRITE_CLR_BIT:
 526                 case CMD_CHECK_BITS_SET:
 527                 case CMD_CHECK_BITS_CLR:
 528
 529                         value = get_cfg_value(token, name, lineno);
 530                         if (set_dcd_param)
 531                                 (*set_dcd_param)(imxhdr, *dcd_len, *cmd);
 532                         (*set_dcd_val)(imxhdr, name, lineno, fld, value,
 533                                         *dcd_len);
 534
 535                         if (fld == CFG_REG_VALUE) {
 536                                 (*dcd_len)++;
 537                                 if (*dcd_len > max_dcd_entries) {
 538                                         fprintf(stderr, "Error: %s[%d] -"
 539                                                 "DCD table exceeds maximum size(%d)\n",
 540                                                 name, lineno, max_dcd_entries);
 541                                         exit(EXIT_FAILURE);
 542                                 }
 543                         }
 544                         break;
 545                 default:
 546                         break;
 547                 }
 548                 break;
 549         default:
 550                 break;
 551         }
 552 }
 553 static uint32_t parse_cfg_file(struct imx_header *imxhdr, char *name)
 554 {
 555         FILE *fd = NULL;
 556         char *line = NULL;
 557         char *token, *saveptr1, *saveptr2;
 558         int lineno = 0;
 559         int fld;
 560         size_t len;
 561         int dcd_len = 0;
 562         int32_t cmd;
 563
 564         fd = fopen(name, "r");
 565         if (fd == 0) {
 566                 fprintf(stderr, "Error: %s - Can't open DCD file\n", name);
 567                 exit(EXIT_FAILURE);
 568         }
 569
 570         /*
 571          * Very simple parsing, line starting with # are comments
 572          * and are dropped
 573          */
 574         while ((getline(&line, &len, fd)) > 0) {
 575                 lineno++;
 576
 577                 token = strtok_r(line, "\r\n", &saveptr1);
 578                 if (token == NULL)
 579                         continue;
 580
 581                 /* Check inside the single line */
 582                 for (fld = CFG_COMMAND, cmd = CMD_INVALID,
 583                                 line = token; ; line = NULL, fld++) {
 584                         token = strtok_r(line, " \t", &saveptr2);
 585                         if (token == NULL)
 586                                 break;
 587
 588                         /* Drop all text starting with '#' as comments */
 589                         if (token[0] == '#')
 590                                 break;
 591
 592                         parse_cfg_fld(imxhdr, &cmd, token, name,
 593                                         lineno, fld, &dcd_len);
 594                 }
 595
 596         }
 597
 598         (*set_dcd_rst)(imxhdr, dcd_len, name, lineno);
 599         fclose(fd);
 600
 601         /* Exit if there is no BOOT_FROM field specifying the flash_offset */
 602         if (imximage_ivt_offset == FLASH_OFFSET_UNDEFINED) {
 603                 fprintf(stderr, "Error: No BOOT_FROM tag in %s\n", name);
 604                 exit(EXIT_FAILURE);
 605         }
 606         return dcd_len;
 607 }
 608
 609
 610 static int imximage_check_image_types(uint8_t type)
 611 {
 612         if (type == IH_TYPE_IMXIMAGE)
 613                 return EXIT_SUCCESS;
 614         else
 615                 return EXIT_FAILURE;
 616 }
 617
 618 static int imximage_verify_header(unsigned char *ptr, int image_size,
 619                         struct image_tool_params *params)
 620 {
 621         struct imx_header *imx_hdr = (struct imx_header *) ptr;
 622
 623         if (detect_imximage_version(imx_hdr) == IMXIMAGE_VER_INVALID)
 624                 return -FDT_ERR_BADSTRUCTURE;
 625
 626         return 0;
 627 }
 628
 629 static void imximage_print_header(const void *ptr)
 630 {
 631         struct imx_header *imx_hdr = (struct imx_header *) ptr;
 632         uint32_t version = detect_imximage_version(imx_hdr);
 633
 634         switch (version) {
 635         case IMXIMAGE_V1:
 636                 print_hdr_v1(imx_hdr);
 637                 break;
 638         case IMXIMAGE_V2:
 639                 print_hdr_v2(imx_hdr);
 640                 break;
 641         default:
 642                 err_imximage_version(version);
 643                 break;
 644         }
 645 }
 646
 647 static void imximage_set_header(void *ptr, struct stat *sbuf, int ifd,
 648                                 struct image_tool_params *params)
 649 {
 650         struct imx_header *imxhdr = (struct imx_header *)ptr;
 651         uint32_t dcd_len;
 652
 653         /*
 654          * In order to not change the old imx cfg file
 655          * by adding VERSION command into it, here need
 656          * set up function ptr group to V1 by default.
 657          */
 658         imximage_version = IMXIMAGE_V1;
 659         /* Be able to detect if the cfg file has no BOOT_FROM tag */
 660         imximage_ivt_offset = FLASH_OFFSET_UNDEFINED;
 661         imximage_csf_size = 0;
 662         set_hdr_func();
 663
 664         /* Parse dcd configuration file */
 665         dcd_len = parse_cfg_file(imxhdr, params->imagename);
 666
 667         if (imximage_version == IMXIMAGE_V2) {
 668                 if (imximage_init_loadsize < imximage_ivt_offset +
 669                         sizeof(imx_header_v2_t))
 670                                 imximage_init_loadsize = imximage_ivt_offset +
 671                                         sizeof(imx_header_v2_t);
 672         }
 673
 674         /* Set the imx header */
 675         (*set_imx_hdr)(imxhdr, dcd_len, params->ep, imximage_ivt_offset);
 676
 677         /*
 678          * ROM bug alert
 679          *
 680          * MX53 only loads 512 byte multiples in case of SD boot.
 681          * MX53 only loads NAND page multiples in case of NAND boot and
 682          * supports up to 4096 byte large pages, thus align to 4096.
 683          *
 684          * The remaining fraction of a block bytes would not be loaded!
 685          */
 686         *header_size_ptr = ROUND((sbuf->st_size + imximage_ivt_offset), 4096);
 687
 688         if (csf_ptr && imximage_csf_size) {
 689                 *csf_ptr = params->ep - imximage_init_loadsize +
 690                         *header_size_ptr;
 691                 *header_size_ptr += imximage_csf_size;
 692         }
 693 }
 694
 695 int imximage_check_params(struct image_tool_params *params)
 696 {
 697         if (!params)
 698                 return CFG_INVALID;
 699         if (!strlen(params->imagename)) {
 700                 fprintf(stderr, "Error: %s - Configuration file not specified, "
 701                         "it is needed for imximage generation\n",
 702                         params->cmdname);
 703                 return CFG_INVALID;
 704         }
 705         /*
 706          * Check parameters:
 707          * XIP is not allowed and verify that incompatible
 708          * parameters are not sent at the same time
 709          * For example, if list is required a data image must not be provided
 710          */
 711         return  (params->dflag && (params->fflag || params->lflag)) ||
 712                 (params->fflag && (params->dflag || params->lflag)) ||
 713                 (params->lflag && (params->dflag || params->fflag)) ||
 714                 (params->xflag) || !(strlen(params->imagename));
 715 }
 716
 717 static int imximage_generate(struct image_tool_params *params,
 718         struct image_type_params *tparams)
 719 {
 720         struct imx_header *imxhdr;
 721         size_t alloc_len;
 722         struct stat sbuf;
 723         char *datafile = params->datafile;
 724         uint32_t pad_len;
 725
 726         memset(&imximage_header, 0, sizeof(imximage_header));
 727
 728         /*
 729          * In order to not change the old imx cfg file
 730          * by adding VERSION command into it, here need
 731          * set up function ptr group to V1 by default.
 732          */
 733         imximage_version = IMXIMAGE_V1;
 734         /* Be able to detect if the cfg file has no BOOT_FROM tag */
 735         imximage_ivt_offset = FLASH_OFFSET_UNDEFINED;
 736         imximage_csf_size = 0;
 737         set_hdr_func();
 738
 739         /* Parse dcd configuration file */
 740         parse_cfg_file(&imximage_header, params->imagename);
 741
 742         /* TODO: check i.MX image V1 handling, for now use 'old' style */
 743         if (imximage_version == IMXIMAGE_V1) {
 744                 alloc_len = 4096;
 745         } else {
 746                 if (imximage_init_loadsize < imximage_ivt_offset +
 747                         sizeof(imx_header_v2_t))
 748                                 imximage_init_loadsize = imximage_ivt_offset +
 749                                         sizeof(imx_header_v2_t);
 750                 alloc_len = imximage_init_loadsize - imximage_ivt_offset;
 751         }
 752
 753         if (alloc_len < sizeof(struct imx_header)) {
 754                 fprintf(stderr, "%s: header error\n",
 755                         params->cmdname);
 756                 exit(EXIT_FAILURE);
 757         }
 758
 759         imxhdr = malloc(alloc_len);
 760
 761         if (!imxhdr) {
 762                 fprintf(stderr, "%s: malloc return failure: %s\n",
 763                         params->cmdname, strerror(errno));
 764                 exit(EXIT_FAILURE);
 765         }
 766
 767         memset(imxhdr, 0, alloc_len);
 768
 769         tparams->header_size = alloc_len;
 770         tparams->hdr         = imxhdr;
 771
 772         /* determine data image file length */
 773
 774         if (stat(datafile, &sbuf) < 0) {
 775                 fprintf(stderr, "%s: Can't stat %s: %s\n",
 776                         params->cmdname, datafile, strerror(errno));
 777                 exit(EXIT_FAILURE);
 778         }
 779
 780         pad_len = ROUND(sbuf.st_size, 4096) - sbuf.st_size;
 781
 782         /* TODO: check i.MX image V1 handling, for now use 'old' style */
 783         if (imximage_version == IMXIMAGE_V1)
 784                 return 0;
 785         else
 786                 return pad_len;
 787 }
 788
 789
 790 /*
 791  * imximage parameters
 792  */
 793 U_BOOT_IMAGE_TYPE(
 794         imximage,
 795         "Freescale i.MX Boot Image support",
 796         0,
 797         NULL,
 798         imximage_check_params,
 799         imximage_verify_header,
 800         imximage_print_header,
 801         imximage_set_header,
 802         NULL,
 803         imximage_check_image_types,
 804         NULL,
 805         imximage_generate
 806 );