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