tools/imx8mimage.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2018 NXP
   4  *
   5  * Peng Fan <peng.fan@nxp.com>
   6  */
   7
   8
   9 #include "imagetool.h"
  10 #include <image.h>
  11 #include "imximage.h"
  12 #include "compiler.h"
  13
  14 static uint32_t ap_start_addr, sld_start_addr, sld_src_off;
  15 static char *ap_img, *sld_img, *signed_hdmi;
  16 static imx_header_v3_t imx_header[2]; /* At most there are 3 IVT headers */
  17 static uint32_t rom_image_offset;
  18 static uint32_t sector_size = 0x200;
  19 static uint32_t image_off;
  20 static uint32_t sld_header_off;
  21 static uint32_t ivt_offset;
  22 static uint32_t using_fit;
  23
  24 #define ROM_V1 1
  25 #define ROM_V2 2
  26
  27 static uint32_t rom_version = ROM_V1;
  28
  29 #define CSF_SIZE 0x2000
  30 #define HDMI_IVT_ID 0
  31 #define IMAGE_IVT_ID 1
  32
  33 #define HDMI_FW_SIZE            0x17000 /* Use Last 0x1000 for IVT and CSF */
  34 #define ALIGN_SIZE              0x1000
  35 #define ALIGN_IMX(x, a)                 __ALIGN_MASK_IMX((x), (__typeof__(x))(a) - 1, a)
  36 #define __ALIGN_MASK_IMX(x, mask, mask2)        (((x) + (mask)) / (mask2) * (mask2))
  37
  38 static uint32_t get_cfg_value(char *token, char *name,  int linenr)
  39 {
  40         char *endptr;
  41         uint32_t value;
  42
  43         errno = 0;
  44         value = strtoul(token, &endptr, 16);
  45         if (errno || token == endptr) {
  46                 fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n",
  47                         name,  linenr, token);
  48                 exit(EXIT_FAILURE);
  49         }
  50         return value;
  51 }
  52
  53 int imx8mimage_check_params(struct image_tool_params *params)
  54 {
  55         return 0;
  56 }
  57
  58 static void imx8mimage_set_header(void *ptr, struct stat *sbuf, int ifd,
  59                                   struct image_tool_params *params)
  60 {
  61 }
  62
  63 static void imx8mimage_print_header(const void *ptr)
  64 {
  65 }
  66
  67 static int imx8mimage_check_image_types(uint8_t type)
  68 {
  69         return (type == IH_TYPE_IMX8MIMAGE) ? EXIT_SUCCESS : EXIT_FAILURE;
  70 }
  71
  72 static table_entry_t imx8mimage_cmds[] = {
  73         {CMD_BOOT_FROM,         "BOOT_FROM",            "boot command",       },
  74         {CMD_FIT,               "FIT",                  "fit image",          },
  75         {CMD_SIGNED_HDMI,       "SIGNED_HDMI",          "signed hdmi image",  },
  76         {CMD_LOADER,            "LOADER",               "loader image",       },
  77         {CMD_SECOND_LOADER,     "SECOND_LOADER",        "2nd loader image",   },
  78         {CMD_DDR_FW,            "DDR_FW",               "ddr firmware",       },
  79         {CMD_ROM_VERSION,       "ROM_VERSION",          "rom version",        },
  80         {-1,                    "",                     "",                   },
  81 };
  82
  83 static table_entry_t imx8mimage_ivt_offset[] = {
  84         {0x400,         "sd",                   "sd/emmc",},
  85         {0x400,         "emmc_fastboot",        "emmc fastboot",},
  86         {0x1000,        "fspi",                 "flexspi",      },
  87         {-1,            "",                     "Invalid",      },
  88 };
  89
  90 static void parse_cfg_cmd(int32_t cmd, char *token, char *name, int lineno)
  91 {
  92         switch (cmd) {
  93         case CMD_BOOT_FROM:
  94                 ivt_offset = get_table_entry_id(imx8mimage_ivt_offset,
  95                                                 "imx8mimage ivt offset",
  96                                                 token);
  97                 if (!strncmp(token, "sd", 2))
  98                         rom_image_offset = 0x8000;
  99
 100                 if (rom_version == ROM_V2)
 101                         ivt_offset = 0;
 102                 break;
 103         case CMD_LOADER:
 104                 ap_img = token;
 105                 break;
 106         case CMD_SECOND_LOADER:
 107                 sld_img = token;
 108                 break;
 109         case CMD_SIGNED_HDMI:
 110                 signed_hdmi = token;
 111                 break;
 112         case CMD_DDR_FW:
 113                 /* Do nothing */
 114                 break;
 115         case CMD_ROM_VERSION:
 116                 if (!strncmp(token, "v2", 2)) {
 117                         rom_version = ROM_V2;
 118                         ivt_offset = 0;
 119                 } else if (!strncmp(token, "v1", 2)) {
 120                         rom_version = ROM_V1;
 121                 }
 122                 break;
 123
 124         }
 125 }
 126
 127 static void parse_cfg_fld(int32_t *cmd, char *token,
 128                           char *name, int lineno, int fld)
 129 {
 130         switch (fld) {
 131         case CFG_COMMAND:
 132                 *cmd = get_table_entry_id(imx8mimage_cmds,
 133                                           "imx8mimage commands", token);
 134                 if (*cmd < 0) {
 135                         fprintf(stderr, "Error: %s[%d] - Invalid command" "(%s)\n",
 136                                 name, lineno, token);
 137                         exit(EXIT_FAILURE);
 138                 }
 139                 switch (*cmd) {
 140                 case CMD_FIT:
 141                         using_fit = 1;
 142                         break;
 143                 }
 144                 break;
 145         case CFG_REG_SIZE:
 146                 parse_cfg_cmd(*cmd, token, name, lineno);
 147                 break;
 148         case CFG_REG_ADDRESS:
 149                 switch (*cmd) {
 150                 case CMD_LOADER:
 151                         ap_start_addr = get_cfg_value(token, name, lineno);
 152                         break;
 153                 case CMD_SECOND_LOADER:
 154                         sld_start_addr = get_cfg_value(token, name, lineno);
 155                         break;
 156                 }
 157                 break;
 158         case CFG_REG_VALUE:
 159                 switch (*cmd) {
 160                 case CMD_SECOND_LOADER:
 161                         sld_src_off = get_cfg_value(token, name, lineno);
 162                         break;
 163                 }
 164         default:
 165                 break;
 166         }
 167 }
 168
 169 static uint32_t parse_cfg_file(char *name)
 170 {
 171         FILE *fd = NULL;
 172         char *line = NULL;
 173         char *token, *saveptr1, *saveptr2;
 174         int lineno = 0;
 175         int fld;
 176         size_t len;
 177         int32_t cmd;
 178
 179         fd = fopen(name, "r");
 180         if (fd == 0) {
 181                 fprintf(stderr, "Error: %s - Can't open cfg file\n", name);
 182                 exit(EXIT_FAILURE);
 183         }
 184
 185         /*
 186          * Very simple parsing, line starting with # are comments
 187          * and are dropped
 188          */
 189         while ((getline(&line, &len, fd)) > 0) {
 190                 lineno++;
 191
 192                 token = strtok_r(line, "\r\n", &saveptr1);
 193                 if (!token)
 194                         continue;
 195
 196                 /* Check inside the single line */
 197                 for (fld = CFG_COMMAND, cmd = CFG_INVALID,
 198                      line = token; ; line = NULL, fld++) {
 199                         token = strtok_r(line, " \t", &saveptr2);
 200                         if (!token)
 201                                 break;
 202
 203                         /* Drop all text starting with '#' as comments */
 204                         if (token[0] == '#')
 205                                 break;
 206
 207                         parse_cfg_fld(&cmd, token, name, lineno, fld);
 208                 }
 209         }
 210
 211         return 0;
 212 }
 213
 214 static void fill_zero(int ifd, int size, int offset)
 215 {
 216         int fill_size;
 217         uint8_t zeros[4096];
 218         int ret;
 219
 220         memset(zeros, 0, sizeof(zeros));
 221
 222         ret = lseek(ifd, offset, SEEK_SET);
 223         if (ret < 0) {
 224                 fprintf(stderr, "%s seek: %s\n", __func__, strerror(errno));
 225                 exit(EXIT_FAILURE);
 226         }
 227
 228         while (size) {
 229                 if (size > 4096)
 230                         fill_size = 4096;
 231                 else
 232                         fill_size = size;
 233
 234                 if (write(ifd, (char *)&zeros, fill_size) != fill_size) {
 235                         fprintf(stderr, "Write error: %s\n",
 236                                 strerror(errno));
 237                         exit(EXIT_FAILURE);
 238                 }
 239
 240                 size -= fill_size;
 241         };
 242 }
 243
 244 static void copy_file(int ifd, const char *datafile, int pad, int offset,
 245                       int datafile_offset)
 246 {
 247         int dfd;
 248         struct stat sbuf;
 249         unsigned char *ptr;
 250         int tail;
 251         uint64_t zero = 0;
 252         uint8_t zeros[4096];
 253         int size, ret;
 254
 255         memset(zeros, 0, sizeof(zeros));
 256
 257         dfd = open(datafile, O_RDONLY | O_BINARY);
 258         if (dfd < 0) {
 259                 fprintf(stderr, "Can't open %s: %s\n",
 260                         datafile, strerror(errno));
 261                 exit(EXIT_FAILURE);
 262         }
 263
 264         if (fstat(dfd, &sbuf) < 0) {
 265                 fprintf(stderr, "Can't stat %s: %s\n",
 266                         datafile, strerror(errno));
 267                 exit(EXIT_FAILURE);
 268         }
 269
 270         ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0);
 271         if (ptr == MAP_FAILED) {
 272                 fprintf(stderr, "Can't read %s: %s\n",
 273                         datafile, strerror(errno));
 274                 goto err_mmap;
 275         }
 276
 277         size = sbuf.st_size - datafile_offset;
 278         ret = lseek(ifd, offset, SEEK_SET);
 279         if (ret < 0) {
 280                 fprintf(stderr, "lseek ifd fail\n");
 281                 exit(EXIT_FAILURE);
 282         }
 283
 284         if (write(ifd, ptr + datafile_offset, size) != size) {
 285                 fprintf(stderr, "Write error %s\n",
 286                         strerror(errno));
 287                 exit(EXIT_FAILURE);
 288         }
 289
 290         tail = size % 4;
 291         pad = pad - size;
 292         if (pad == 1 && tail != 0) {
 293                 if (write(ifd, (char *)&zero, 4 - tail) != 4 - tail) {
 294                         fprintf(stderr, "Write error on %s\n",
 295                                 strerror(errno));
 296                         exit(EXIT_FAILURE);
 297                 }
 298         } else if (pad > 1) {
 299                 while (pad > 0) {
 300                         int todo = sizeof(zeros);
 301
 302                         if (todo > pad)
 303                                 todo = pad;
 304                         if (write(ifd, (char *)&zeros, todo) != todo) {
 305                                 fprintf(stderr, "Write error: %s\n",
 306                                         strerror(errno));
 307                                 exit(EXIT_FAILURE);
 308                         }
 309                         pad -= todo;
 310                 }
 311         }
 312
 313         munmap((void *)ptr, sbuf.st_size);
 314 err_mmap:
 315         close(dfd);
 316 }
 317
 318 /* Return this IVT offset in the final output file */
 319 static int generate_ivt_for_fit(int fd, int fit_offset, uint32_t ep,
 320                                 uint32_t *fit_load_addr)
 321 {
 322         image_header_t image_header;
 323         int ret;
 324
 325         uint32_t fit_size, load_addr;
 326         int align_len = 64 - 1; /* 64 is cacheline size */
 327
 328         ret = lseek(fd, fit_offset, SEEK_SET);
 329         if (ret < 0) {
 330                 fprintf(stderr, "lseek fd fail for fit\n");
 331                 exit(EXIT_FAILURE);
 332         }
 333
 334         if (read(fd, (char *)&image_header, sizeof(image_header_t)) !=
 335             sizeof(image_header_t)) {
 336                 fprintf(stderr, "generate_ivt_for_fit read failed: %s\n",
 337                         strerror(errno));
 338                 exit(EXIT_FAILURE);
 339         }
 340
 341         if (be32_to_cpu(image_header.ih_magic) != FDT_MAGIC) {
 342                 fprintf(stderr, "%s error: not a FIT file\n", __func__);
 343                 exit(EXIT_FAILURE);
 344         }
 345
 346         fit_size = fdt_totalsize(&image_header);
 347
 348         fit_size = ALIGN_IMX(fit_size, ALIGN_SIZE);
 349
 350         ret = lseek(fd, fit_offset + fit_size, SEEK_SET);
 351         if (ret < 0) {
 352                 fprintf(stderr, "lseek fd fail for fit\n");
 353                 exit(EXIT_FAILURE);
 354         }
 355
 356         /*
 357          * ep is the u-boot entry. SPL loads the FIT before the u-boot
 358          * address. 0x2000 is for CSF_SIZE
 359          */
 360         load_addr = (ep - (fit_size + CSF_SIZE) - 512 - align_len) &
 361                 ~align_len;
 362
 363         flash_header_v2_t ivt_header = { { 0xd1, 0x2000, 0x40 },
 364                 load_addr, 0, 0, 0,
 365                 (load_addr + fit_size),
 366                 (load_addr + fit_size + 0x20),
 367                 0 };
 368
 369         if (write(fd, &ivt_header, sizeof(flash_header_v2_t)) !=
 370             sizeof(flash_header_v2_t)) {
 371                 fprintf(stderr, "IVT writing error on fit image\n");
 372                 exit(EXIT_FAILURE);
 373         }
 374
 375         *fit_load_addr = load_addr;
 376
 377         return fit_offset + fit_size;
 378 }
 379
 380 static void dump_header_v2(imx_header_v3_t *imx_header, int index)
 381 {
 382         const char *ivt_name[2] = {"HDMI FW", "LOADER IMAGE"};
 383
 384         fprintf(stdout, "========= IVT HEADER [%s] =========\n",
 385                 ivt_name[index]);
 386         fprintf(stdout, "header.tag: \t\t0x%x\n",
 387                 imx_header[index].fhdr.header.tag);
 388         fprintf(stdout, "header.length: \t\t0x%x\n",
 389                 imx_header[index].fhdr.header.length);
 390         fprintf(stdout, "header.version: \t0x%x\n",
 391                 imx_header[index].fhdr.header.version);
 392         fprintf(stdout, "entry: \t\t\t0x%x\n",
 393                 imx_header[index].fhdr.entry);
 394         fprintf(stdout, "reserved1: \t\t0x%x\n",
 395                 imx_header[index].fhdr.reserved1);
 396         fprintf(stdout, "dcd_ptr: \t\t0x%x\n",
 397                 imx_header[index].fhdr.dcd_ptr);
 398         fprintf(stdout, "boot_data_ptr: \t\t0x%x\n",
 399                 imx_header[index].fhdr.boot_data_ptr);
 400         fprintf(stdout, "self: \t\t\t0x%x\n",
 401                 imx_header[index].fhdr.self);
 402         fprintf(stdout, "csf: \t\t\t0x%x\n",
 403                 imx_header[index].fhdr.csf);
 404         fprintf(stdout, "reserved2: \t\t0x%x\n",
 405                 imx_header[index].fhdr.reserved2);
 406
 407         fprintf(stdout, "boot_data.start: \t0x%x\n",
 408                 imx_header[index].boot_data.start);
 409         fprintf(stdout, "boot_data.size: \t0x%x\n",
 410                 imx_header[index].boot_data.size);
 411         fprintf(stdout, "boot_data.plugin: \t0x%x\n",
 412                 imx_header[index].boot_data.plugin);
 413 }
 414
 415 void build_image(int ofd)
 416 {
 417         int file_off, header_hdmi_off = 0, header_image_off;
 418         int hdmi_fd, ap_fd, sld_fd;
 419         uint32_t sld_load_addr = 0;
 420         uint32_t csf_off, sld_csf_off = 0;
 421         int ret;
 422         struct stat sbuf;
 423
 424         if (!ap_img) {
 425                 fprintf(stderr, "No LOADER image specificed\n");
 426                 exit(EXIT_FAILURE);
 427         }
 428
 429         file_off = 0;
 430
 431         if (signed_hdmi) {
 432                 header_hdmi_off = file_off + ivt_offset;
 433
 434                 hdmi_fd = open(signed_hdmi, O_RDONLY | O_BINARY);
 435                 if (hdmi_fd < 0) {
 436                         fprintf(stderr, "%s: Can't open: %s\n",
 437                                 signed_hdmi, strerror(errno));
 438                         exit(EXIT_FAILURE);
 439                 }
 440
 441                 if (fstat(hdmi_fd, &sbuf) < 0) {
 442                         fprintf(stderr, "%s: Can't stat: %s\n",
 443                                 signed_hdmi, strerror(errno));
 444                         exit(EXIT_FAILURE);
 445                 }
 446                 close(hdmi_fd);
 447
 448                 /*
 449                  * Aligned to 104KB = 92KB FW image + 0x8000
 450                  * (IVT and alignment) + 0x4000 (second IVT + CSF)
 451                  */
 452                 file_off += ALIGN_IMX(sbuf.st_size,
 453                                   HDMI_FW_SIZE + 0x2000 + 0x1000);
 454         }
 455
 456         header_image_off = file_off + ivt_offset;
 457
 458         ap_fd = open(ap_img, O_RDONLY | O_BINARY);
 459         if (ap_fd < 0) {
 460                 fprintf(stderr, "%s: Can't open: %s\n",
 461                         ap_img, strerror(errno));
 462                 exit(EXIT_FAILURE);
 463         }
 464         if (fstat(ap_fd, &sbuf) < 0) {
 465                 fprintf(stderr, "%s: Can't stat: %s\n",
 466                         ap_img, strerror(errno));
 467                 exit(EXIT_FAILURE);
 468         }
 469         close(ap_fd);
 470
 471         imx_header[IMAGE_IVT_ID].fhdr.header.tag = IVT_HEADER_TAG; /* 0xD1 */
 472         imx_header[IMAGE_IVT_ID].fhdr.header.length =
 473                 cpu_to_be16(sizeof(flash_header_v2_t));
 474         imx_header[IMAGE_IVT_ID].fhdr.header.version = IVT_VERSION_V3; /* 0x41 */
 475         imx_header[IMAGE_IVT_ID].fhdr.entry = ap_start_addr;
 476         imx_header[IMAGE_IVT_ID].fhdr.self = ap_start_addr -
 477                 sizeof(imx_header_v3_t);
 478         imx_header[IMAGE_IVT_ID].fhdr.dcd_ptr = 0;
 479         imx_header[IMAGE_IVT_ID].fhdr.boot_data_ptr =
 480                 imx_header[IMAGE_IVT_ID].fhdr.self +
 481                 offsetof(imx_header_v3_t, boot_data);
 482         imx_header[IMAGE_IVT_ID].boot_data.start =
 483                 imx_header[IMAGE_IVT_ID].fhdr.self - ivt_offset;
 484         imx_header[IMAGE_IVT_ID].boot_data.size =
 485                 ALIGN_IMX(sbuf.st_size + sizeof(imx_header_v3_t) + ivt_offset,
 486                       sector_size);
 487
 488         image_off = header_image_off + sizeof(imx_header_v3_t);
 489         file_off +=  imx_header[IMAGE_IVT_ID].boot_data.size;
 490
 491         imx_header[IMAGE_IVT_ID].boot_data.plugin = 0;
 492         imx_header[IMAGE_IVT_ID].fhdr.csf =
 493                 imx_header[IMAGE_IVT_ID].boot_data.start +
 494                 imx_header[IMAGE_IVT_ID].boot_data.size;
 495
 496         imx_header[IMAGE_IVT_ID].boot_data.size += CSF_SIZE; /* 8K region dummy CSF */
 497
 498         csf_off = file_off;
 499         file_off += CSF_SIZE;
 500
 501         /* Second boot loader image */
 502         if (sld_img) {
 503                 if (!using_fit) {
 504                         fprintf(stderr, "Not support no fit\n");
 505                         exit(EXIT_FAILURE);
 506                 } else {
 507                         sld_header_off = sld_src_off - rom_image_offset;
 508                         /*
 509                          * Record the second bootloader relative offset in
 510                          * image's IVT reserved1
 511                          */
 512                         if (rom_version == ROM_V1) {
 513                                 imx_header[IMAGE_IVT_ID].fhdr.reserved1 =
 514                                         sld_header_off - header_image_off;
 515                         }
 516                         sld_fd = open(sld_img, O_RDONLY | O_BINARY);
 517                         if (sld_fd < 0) {
 518                                 fprintf(stderr, "%s: Can't open: %s\n",
 519                                         sld_img, strerror(errno));
 520                                 exit(EXIT_FAILURE);
 521                         }
 522
 523                         if (fstat(sld_fd, &sbuf) < 0) {
 524                                 fprintf(stderr, "%s: Can't stat: %s\n",
 525                                         sld_img, strerror(errno));
 526                                 exit(EXIT_FAILURE);
 527                         }
 528
 529                         close(sld_fd);
 530
 531                         file_off = sld_header_off;
 532                         file_off += sbuf.st_size + sizeof(image_header_t);
 533                 }
 534         }
 535
 536         if (signed_hdmi) {
 537                 header_hdmi_off -= ivt_offset;
 538                 ret = lseek(ofd, header_hdmi_off, SEEK_SET);
 539                 if (ret < 0) {
 540                         fprintf(stderr, "lseek ofd fail for hdmi\n");
 541                         exit(EXIT_FAILURE);
 542                 }
 543
 544                 /* The signed HDMI FW has 0x400 IVT offset, need remove it */
 545                 copy_file(ofd, signed_hdmi, 0, header_hdmi_off, 0x400);
 546         }
 547
 548         /* Main Image */
 549         header_image_off -= ivt_offset;
 550         image_off -= ivt_offset;
 551         ret = lseek(ofd, header_image_off, SEEK_SET);
 552         if (ret < 0) {
 553                 fprintf(stderr, "lseek ofd fail\n");
 554                 exit(EXIT_FAILURE);
 555         }
 556
 557         /* Write image header */
 558         if (write(ofd, &imx_header[IMAGE_IVT_ID], sizeof(imx_header_v3_t)) !=
 559             sizeof(imx_header_v3_t)) {
 560                 fprintf(stderr, "error writing image hdr\n");
 561                 exit(1);
 562         }
 563
 564         copy_file(ofd, ap_img, 0, image_off, 0);
 565
 566         csf_off -= ivt_offset;
 567         fill_zero(ofd, CSF_SIZE, csf_off);
 568
 569         if (sld_img) {
 570                 sld_header_off -= ivt_offset;
 571                 ret = lseek(ofd, sld_header_off, SEEK_SET);
 572                 if (ret < 0) {
 573                         fprintf(stderr, "lseek ofd fail for sld_img\n");
 574                         exit(EXIT_FAILURE);
 575                 }
 576
 577                 /* Write image header */
 578                 if (!using_fit) {
 579                         /* TODO */
 580                 } else {
 581                         copy_file(ofd, sld_img, 0, sld_header_off, 0);
 582                         sld_csf_off =
 583                                 generate_ivt_for_fit(ofd, sld_header_off,
 584                                                      sld_start_addr,
 585                                                      &sld_load_addr) + 0x20;
 586                 }
 587         }
 588
 589         if (!signed_hdmi)
 590                 dump_header_v2(imx_header, 0);
 591         dump_header_v2(imx_header, 1);
 592
 593         fprintf(stdout, "========= OFFSET dump =========");
 594         if (signed_hdmi) {
 595                 fprintf(stdout, "\nSIGNED HDMI FW:\n");
 596                 fprintf(stdout, " header_hdmi_off \t0x%x\n",
 597                         header_hdmi_off);
 598         }
 599
 600         fprintf(stdout, "\nLoader IMAGE:\n");
 601         fprintf(stdout, " header_image_off \t0x%x\n image_off \t\t0x%x\n csf_off \t\t0x%x\n",
 602                 header_image_off, image_off, csf_off);
 603         fprintf(stdout, " spl hab block: \t0x%x 0x%x 0x%x\n",
 604                 imx_header[IMAGE_IVT_ID].fhdr.self, header_image_off,
 605                 csf_off - header_image_off);
 606
 607         fprintf(stdout, "\nSecond Loader IMAGE:\n");
 608         fprintf(stdout, " sld_header_off \t0x%x\n",
 609                 sld_header_off);
 610         fprintf(stdout, " sld_csf_off \t\t0x%x\n",
 611                 sld_csf_off);
 612         fprintf(stdout, " sld hab block: \t0x%x 0x%x 0x%x\n",
 613                 sld_load_addr, sld_header_off, sld_csf_off - sld_header_off);
 614 }
 615
 616 int imx8mimage_copy_image(int outfd, struct image_tool_params *mparams)
 617 {
 618         /*
 619          * SECO FW is a container image, this is to calculate the
 620          * 2nd container offset.
 621          */
 622         fprintf(stdout, "parsing %s\n", mparams->imagename);
 623         parse_cfg_file(mparams->imagename);
 624
 625         build_image(outfd);
 626
 627         return 0;
 628 }
 629
 630 /*
 631  * imx8mimage parameters
 632  */
 633 U_BOOT_IMAGE_TYPE(
 634         imx8mimage,
 635         "NXP i.MX8M Boot Image support",
 636         0,
 637         NULL,
 638         imx8mimage_check_params,
 639         NULL,
 640         imx8mimage_print_header,
 641         imx8mimage_set_header,
 642         NULL,
 643         imx8mimage_check_image_types,
 644         NULL,
 645         NULL
 646 );