1 /* 2 * (C) Copyright 2015 Google, Inc 3 * Written by Simon Glass <sjg@chromium.org> 4 * 5 * (C) 2017 Theobroma Systems Design und Consulting GmbH 6 * 7 * SPDX-License-Identifier: GPL-2.0+ 8 * 9 * Helper functions for Rockchip images 10 */ 11 12 #include "imagetool.h" 13 #include <image.h> 14 #include <u-boot/sha256.h> 15 #include <rc4.h> 16 #include "mkimage.h" 17 #include "rkcommon.h" 18 19 enum { 20 RK_MAGIC = 0x0ff0aa55, 21 RK_MAGIC_V2 = 0x534E4B52, 22 }; 23 24 enum { 25 RK_HEADER_V1 = 1, 26 RK_HEADER_V2 = 2, 27 }; 28 29 enum hash_type { 30 HASH_NONE = 0, 31 HASH_SHA256 = 1, 32 HASH_SHA512 = 2, 33 }; 34 35 /** 36 * struct image_entry 37 * 38 * @size_and_off: [31:16]image size;[15:0]image offset 39 * @address: default as 0xFFFFFFFF 40 * @flag: no use 41 * @counter: no use 42 * @hash: hash of image 43 * 44 */ 45 struct image_entry { 46 uint32_t size_and_off; 47 uint32_t address; 48 uint32_t flag; 49 uint32_t counter; 50 uint8_t reserved[8]; 51 uint8_t hash[64]; 52 }; 53 54 /** 55 * struct header0_info_v2 - from rk35 on boot rom using the new header block 56 * 57 * This is stored at SD card block 64 (where each block is 512 bytes) 58 * 59 * @magic: Magic (must be RK_MAGIC_V2) 60 * @size_and_nimage: [31:16]number of images;[15:0] 61 * offset to hash field of header(unit as 4Byte) 62 * @boot_flag: [3:0]hash type(0:none,1:sha256,2:sha512) 63 * @signature: hash or signature for header info 64 * 65 */ 66 struct header0_info_v2 { 67 uint32_t magic; 68 uint8_t reserved[4]; 69 uint32_t size_and_nimage; 70 uint32_t boot_flag; 71 uint8_t reserved1[104]; 72 struct image_entry images[4]; 73 uint8_t reserved2[1064]; 74 uint8_t hash[512]; 75 }; 76 77 /** 78 * struct header0_info - header block for boot ROM 79 * 80 * This is stored at SD card block 64 (where each block is 512 bytes, or at 81 * the start of SPI flash. It is encoded with RC4. 82 * 83 * @magic: Magic (must be RK_MAGIC) 84 * @disable_rc4: 0 to use rc4 for boot image, 1 to use plain binary 85 * @init_offset: Offset in blocks of the SPL code from this header 86 * block. E.g. 4 means 2KB after the start of this header. 87 * Other fields are not used by U-Boot 88 */ 89 struct header0_info { 90 uint32_t magic; 91 uint8_t reserved[4]; 92 uint32_t disable_rc4; 93 uint16_t init_offset; 94 uint8_t reserved1[492]; 95 uint16_t init_size; 96 uint16_t init_boot_size; 97 uint8_t reserved2[2]; 98 }; 99 100 /** 101 * struct header1 info 102 */ 103 struct header1_info { 104 uint32_t magic; 105 }; 106 107 /** 108 * struct spl_info - spl info for each chip 109 * 110 * @imagename: Image name(passed by "mkimage -n") 111 * @spl_hdr: Boot ROM requires a 4-bytes spl header 112 * @spl_size: Spl size(include extra 4-bytes spl header) 113 * @spl_rc4: RC4 encode the SPL binary (same key as header) 114 * @header_ver: header block version 115 */ 116 struct spl_info { 117 const char *imagename; 118 const char *spl_hdr; 119 const uint32_t spl_size; 120 const bool spl_rc4; 121 const uint32_t header_ver; 122 }; 123 124 static struct spl_info spl_infos[] = { 125 { "rk3036", "RK30", 0x1000, false, RK_HEADER_V1 }, 126 { "rk3066", "RK30", 0x8000, true, RK_HEADER_V1 }, 127 { "rk3128", "RK31", 0x2000 - 0x800, false, RK_HEADER_V1 }, 128 { "px3se", "RK31", 0x2000 - 0x800, false, RK_HEADER_V1 }, 129 { "rk3188", "RK31", 0x8000 - 0x800, true, RK_HEADER_V1 }, 130 { "rk322x", "RK32", 0x8000 - 0x1000, false, RK_HEADER_V1 }, 131 { "rk3288", "RK32", 0x8000, false, RK_HEADER_V1 }, 132 { "rk3308", "RK33", 0x40000 - 0x1000, false, RK_HEADER_V1 }, 133 { "rk3328", "RK32", 0x8000 - 0x800, false, RK_HEADER_V1 }, 134 { "rk3368", "RK33", 0x8000 - 0x1000, false, RK_HEADER_V1 }, 135 { "rk3399", "RK33", 0x30000 - 0x2000, false, RK_HEADER_V1 }, 136 { "rk3326", "RK33", 0x4000 - 0x1000, false, RK_HEADER_V1 }, 137 { "px30", "RK33", 0x4000 - 0x1000, false, RK_HEADER_V1 }, 138 { "rv1108", "RK11", 0x1800, false, RK_HEADER_V1 }, 139 { "rv1126", "110B", 0x10000 - 0x1000, false, RK_HEADER_V1 }, 140 { "rk1808", "RK18", 0x200000 - 0x2000, false, RK_HEADER_V1 }, 141 { "rk3528", "RK35", 0x10000 - 0x1000, false, RK_HEADER_V2 }, 142 { "rk3562", "RK35", 0x10000 - 0x1000, false, RK_HEADER_V2 }, 143 { "rk3568", "RK35", 0x10000 - 0x1000, false, RK_HEADER_V2 }, 144 { "rk3576", "RK35", 0x80000 - 0x1000, false, RK_HEADER_V2 }, 145 { "rk3588", "RK35", 0x100000 - 0x1000, false, RK_HEADER_V2 }, 146 }; 147 148 /** 149 * struct spl_params - spl params parsed in check_params() 150 * 151 * @init_file: Init data file path 152 * @init_size: Aligned size of init data in bytes 153 * @boot_file: Boot data file path 154 * @boot_size: Aligned size of boot data in bytes 155 */ 156 157 struct spl_params { 158 char *init_file; 159 uint32_t init_size; 160 char *boot_file; 161 uint32_t boot_size; 162 }; 163 164 static struct spl_params spl_params = { 0 }; 165 166 static unsigned char rc4_key[16] = { 167 124, 78, 3, 4, 85, 5, 9, 7, 168 45, 44, 123, 56, 23, 13, 23, 17 169 }; 170 171 static struct spl_info *rkcommon_get_spl_info(char *imagename) 172 { 173 int i; 174 175 if (!imagename) 176 return NULL; 177 178 for (i = 0; i < ARRAY_SIZE(spl_infos); i++) 179 if (!strncmp(imagename, spl_infos[i].imagename, 6)) 180 return spl_infos + i; 181 182 return NULL; 183 } 184 185 static int rkcommon_get_aligned_size(struct image_tool_params *params, 186 const char *fname) 187 { 188 int size; 189 190 size = imagetool_get_filesize(params, fname); 191 if (size < 0) 192 return -1; 193 194 /* 195 * Pad to a 2KB alignment, as required for init/boot size by the ROM 196 * (see https://lists.denx.de/pipermail/u-boot/2017-May/293268.html) 197 */ 198 return ROUND(size, RK_SIZE_ALIGN); 199 } 200 201 int rkcommon_check_params(struct image_tool_params *params) 202 { 203 int i; 204 205 /* 206 * If this is a operation (list or extract), the don't require 207 * imagename to be set. 208 */ 209 if (params->lflag || params->iflag) 210 return EXIT_SUCCESS; 211 212 if (!rkcommon_get_spl_info(params->imagename)) 213 goto err_spl_info; 214 215 spl_params.init_file = params->datafile; 216 217 spl_params.boot_file = strchr(spl_params.init_file, ':'); 218 if (spl_params.boot_file) { 219 *spl_params.boot_file = '\0'; 220 spl_params.boot_file += 1; 221 } 222 223 spl_params.init_size = 224 rkcommon_get_aligned_size(params, spl_params.init_file); 225 if (spl_params.init_size < 0) 226 return EXIT_FAILURE; 227 228 /* Boot file is optional, and only for back-to-bootrom functionality. */ 229 if (spl_params.boot_file) { 230 spl_params.boot_size = 231 rkcommon_get_aligned_size(params, spl_params.boot_file); 232 if (spl_params.boot_size < 0) 233 return EXIT_FAILURE; 234 } 235 236 if (spl_params.init_size > rkcommon_get_spl_size(params)) { 237 fprintf(stderr, 238 "Error: SPL image is too large (size %#x than %#x)\n", 239 spl_params.init_size, rkcommon_get_spl_size(params)); 240 return EXIT_FAILURE; 241 } 242 243 return EXIT_SUCCESS; 244 245 err_spl_info: 246 fprintf(stderr, "ERROR: imagename (%s) is not supported!\n", 247 params->imagename ? params->imagename : "NULL"); 248 249 fprintf(stderr, "Available imagename:"); 250 for (i = 0; i < ARRAY_SIZE(spl_infos); i++) 251 fprintf(stderr, "\t%s", spl_infos[i].imagename); 252 fprintf(stderr, "\n"); 253 254 return EXIT_FAILURE; 255 } 256 257 const char *rkcommon_get_spl_hdr(struct image_tool_params *params) 258 { 259 struct spl_info *info = rkcommon_get_spl_info(params->imagename); 260 261 /* 262 * info would not be NULL, because of we checked params before. 263 */ 264 return info->spl_hdr; 265 } 266 267 int rkcommon_get_spl_size(struct image_tool_params *params) 268 { 269 struct spl_info *info = rkcommon_get_spl_info(params->imagename); 270 271 /* 272 * info would not be NULL, because of we checked params before. 273 */ 274 return info->spl_size; 275 } 276 277 bool rkcommon_need_rc4_spl(struct image_tool_params *params) 278 { 279 struct spl_info *info = rkcommon_get_spl_info(params->imagename); 280 281 /* 282 * info would not be NULL, because of we checked params before. 283 */ 284 return info->spl_rc4; 285 } 286 287 bool rkcommon_is_header_v2(struct image_tool_params *params) 288 { 289 struct spl_info *info = rkcommon_get_spl_info(params->imagename); 290 291 /* 292 * info would not be NULL, because of we checked params before. 293 */ 294 return (info->header_ver == RK_HEADER_V2); 295 } 296 297 static void do_sha256_hash(uint8_t *buf, uint32_t size, uint8_t *out) 298 { 299 sha256_context ctx; 300 301 sha256_starts(&ctx); 302 sha256_update(&ctx, buf, size); 303 sha256_finish(&ctx, out); 304 } 305 306 static void rkcommon_set_header0(void *buf, struct image_tool_params *params) 307 { 308 struct header0_info *hdr = buf; 309 310 memset(buf, '\0', RK_INIT_OFFSET * RK_BLK_SIZE); 311 hdr->magic = RK_MAGIC; 312 hdr->disable_rc4 = !rkcommon_need_rc4_spl(params); 313 hdr->init_offset = RK_INIT_OFFSET; 314 hdr->init_size = spl_params.init_size / RK_BLK_SIZE; 315 316 /* 317 * init_boot_size needs to be set, as it is read by the BootROM 318 * to determine the size of the next-stage bootloader (e.g. U-Boot 319 * proper), when used with the back-to-bootrom functionality. 320 * 321 * see https://lists.denx.de/pipermail/u-boot/2017-May/293267.html 322 * for a more detailed explanation by Andy Yan 323 */ 324 if (spl_params.boot_file) 325 hdr->init_boot_size = 326 hdr->init_size + spl_params.boot_size / RK_BLK_SIZE; 327 else 328 hdr->init_boot_size = 329 hdr->init_size + RK_MAX_BOOT_SIZE / RK_BLK_SIZE; 330 331 rc4_encode(buf, RK_BLK_SIZE, rc4_key); 332 } 333 334 static void rkcommon_set_header0_v2(void *buf, struct image_tool_params *params) 335 { 336 struct header0_info_v2 *hdr = buf; 337 uint32_t sector_offset, image_sector_count; 338 uint32_t image_size_array[2]; 339 uint8_t *image_ptr = NULL; 340 int i; 341 342 printf("Image Type: Rockchip %s boot image\n", rkcommon_get_spl_hdr(params)); 343 memset(buf, '\0', RK_INIT_OFFSET * RK_BLK_SIZE); 344 hdr->magic = cpu_to_le32(RK_MAGIC_V2); 345 hdr->size_and_nimage = cpu_to_le32((2 << 16) + 384); 346 hdr->boot_flag = cpu_to_le32(HASH_SHA256); 347 sector_offset = 4; 348 image_size_array[0] = spl_params.init_size; 349 image_size_array[1] = spl_params.boot_size; 350 351 for (i = 0; i < 2; i++) { 352 image_sector_count = image_size_array[i] / RK_BLK_SIZE; 353 hdr->images[i].size_and_off = cpu_to_le32((image_sector_count << 16) + sector_offset); 354 hdr->images[i].address = 0xFFFFFFFF; 355 hdr->images[i].counter = cpu_to_le32(i + 1); 356 image_ptr = buf + sector_offset * RK_BLK_SIZE; 357 do_sha256_hash(image_ptr, image_size_array[i], hdr->images[i].hash); 358 sector_offset = sector_offset + image_sector_count; 359 } 360 361 do_sha256_hash(buf, (void *)hdr->hash - buf, hdr->hash); 362 } 363 364 void rkcommon_set_header(void *buf, struct stat *sbuf, int ifd, 365 struct image_tool_params *params) 366 { 367 struct header1_info *hdr = buf + RK_SPL_HDR_START; 368 369 if (rkcommon_is_header_v2(params)) { 370 rkcommon_set_header0_v2(buf, params); 371 } else { 372 rkcommon_set_header0(buf, params); 373 374 /* Set up the SPL name (i.e. copy spl_hdr over) */ 375 if (memcmp(&hdr->magic, "RSAK", 4)) 376 memcpy(&hdr->magic, rkcommon_get_spl_hdr(params), RK_SPL_HDR_SIZE); 377 378 if (rkcommon_need_rc4_spl(params)) 379 rkcommon_rc4_encode_spl(buf, RK_SPL_HDR_START, 380 spl_params.init_size); 381 382 if (spl_params.boot_file) { 383 if (rkcommon_need_rc4_spl(params)) 384 rkcommon_rc4_encode_spl(buf + RK_SPL_HDR_START, 385 spl_params.init_size, 386 spl_params.boot_size); 387 } 388 } 389 } 390 391 static inline unsigned int rkcommon_offset_to_spi(unsigned int offset) 392 { 393 /* 394 * While SD/MMC images use a flat addressing, SPI images are padded 395 * to use the first 2K of every 4K sector only. 396 */ 397 return ((offset & ~0x7ff) << 1) + (offset & 0x7ff); 398 } 399 400 static int rkcommon_parse_header(const void *buf, struct header0_info *header0, 401 struct spl_info **spl_info) 402 { 403 unsigned int hdr1_offset; 404 struct header1_info *hdr1_sdmmc, *hdr1_spi; 405 int i; 406 407 if (spl_info) 408 *spl_info = NULL; 409 410 /* 411 * The first header (hdr0) is always RC4 encoded, so try to decrypt 412 * with the well-known key. 413 */ 414 memcpy((void *)header0, buf, sizeof(struct header0_info)); 415 rc4_encode((void *)header0, sizeof(struct header0_info), rc4_key); 416 417 if (header0->magic != RK_MAGIC) 418 return -EPROTO; 419 420 /* We don't support RC4 encoded image payloads here, yet... */ 421 if (header0->disable_rc4 == 0) 422 return -ENOSYS; 423 424 hdr1_offset = header0->init_offset * RK_BLK_SIZE; 425 hdr1_sdmmc = (struct header1_info *)(buf + hdr1_offset); 426 hdr1_spi = (struct header1_info *)(buf + 427 rkcommon_offset_to_spi(hdr1_offset)); 428 429 for (i = 0; i < ARRAY_SIZE(spl_infos); i++) { 430 if (!memcmp(&hdr1_sdmmc->magic, spl_infos[i].spl_hdr, 4)) { 431 if (spl_info) 432 *spl_info = &spl_infos[i]; 433 return IH_TYPE_RKSD; 434 } else if (!memcmp(&hdr1_spi->magic, spl_infos[i].spl_hdr, 4)) { 435 if (spl_info) 436 *spl_info = &spl_infos[i]; 437 return IH_TYPE_RKSPI; 438 } 439 } 440 441 return -1; 442 } 443 444 static int rkcommon_parse_header_v2(const void *buf, struct header0_info_v2 *header) 445 { 446 memcpy((void *)header, buf, sizeof(struct header0_info_v2)); 447 448 if (le32_to_cpu(header->magic) != RK_MAGIC_V2) 449 return -EPROTO; 450 451 return 0; 452 } 453 454 int rkcommon_verify_header(unsigned char *buf, int size, 455 struct image_tool_params *params) 456 { 457 struct header0_info header0; 458 struct spl_info *img_spl_info, *spl_info; 459 int ret; 460 461 /* spl_hdr is abandon on header_v2 */ 462 if ((*(uint32_t *)buf) == RK_MAGIC_V2) 463 return 0; 464 465 ret = rkcommon_parse_header(buf, &header0, &img_spl_info); 466 467 /* If this is the (unimplemented) RC4 case, then rewrite the result */ 468 if (ret == -ENOSYS) 469 return 0; 470 471 if (ret < 0) 472 return ret; 473 474 /* 475 * If no 'imagename' is specified via the commandline (e.g. if this is 476 * 'dumpimage -l' w/o any further constraints), we accept any spl_info. 477 */ 478 if (params->imagename == NULL) 479 return 0; 480 481 /* Match the 'imagename' against the 'spl_hdr' found */ 482 spl_info = rkcommon_get_spl_info(params->imagename); 483 if (spl_info && img_spl_info) 484 return strcmp(spl_info->spl_hdr, img_spl_info->spl_hdr); 485 486 return -ENOENT; 487 } 488 489 void rkcommon_print_header(const void *buf) 490 { 491 struct header0_info header0; 492 struct header0_info_v2 header0_v2; 493 struct spl_info *spl_info; 494 uint8_t image_type; 495 int ret, boot_size, init_size; 496 497 if ((*(uint32_t *)buf) == RK_MAGIC_V2) { 498 ret = rkcommon_parse_header_v2(buf, &header0_v2); 499 500 if (ret < 0) { 501 fprintf(stderr, "Error: image verification failed\n"); 502 return; 503 } 504 505 init_size = header0_v2.images[0].size_and_off >> 16; 506 init_size = init_size * RK_BLK_SIZE; 507 boot_size = header0_v2.images[1].size_and_off >> 16; 508 boot_size = boot_size * RK_BLK_SIZE; 509 } else { 510 ret = rkcommon_parse_header(buf, &header0, &spl_info); 511 512 /* If this is the (unimplemented) RC4 case, then fail silently */ 513 if (ret == -ENOSYS) 514 return; 515 516 if (ret < 0) { 517 fprintf(stderr, "Error: image verification failed\n"); 518 return; 519 } 520 521 image_type = ret; 522 init_size = header0.init_size * RK_BLK_SIZE; 523 boot_size = header0.init_boot_size * RK_BLK_SIZE - init_size; 524 printf("Image Type: Rockchip %s (%s) boot image\n", 525 spl_info->spl_hdr, 526 (image_type == IH_TYPE_RKSD) ? "SD/MMC" : "SPI"); 527 } 528 529 printf("Init Data Size: %d bytes\n", init_size); 530 531 if (boot_size != RK_MAX_BOOT_SIZE) 532 printf("Boot Data Size: %d bytes\n", boot_size); 533 } 534 535 void rkcommon_rc4_encode_spl(void *buf, unsigned int offset, unsigned int size) 536 { 537 unsigned int remaining = size; 538 539 while (remaining > 0) { 540 int step = (remaining > RK_BLK_SIZE) ? RK_BLK_SIZE : remaining; 541 542 rc4_encode(buf + offset, step, rc4_key); 543 offset += RK_BLK_SIZE; 544 remaining -= step; 545 } 546 } 547 548 int rkcommon_vrec_header(struct image_tool_params *params, 549 struct image_type_params *tparams) 550 { 551 /* 552 * The SPL image looks as follows: 553 * 554 * 0x0 header0 (see rkcommon.c) 555 * 0x800 spl_name ('RK30', ..., 'RK33') 556 * (start of the payload for AArch64 payloads: we expect the 557 * first 4 bytes to be available for overwriting with our 558 * spl_name) 559 * 0x804 first instruction to be executed 560 * (start of the image/payload for 32bit payloads) 561 * 562 * For AArch64 (ARMv8) payloads, natural alignment (8-bytes) is 563 * required for its sections (so the image we receive needs to 564 * have the first 4 bytes reserved for the spl_name). Reserving 565 * these 4 bytes is done using the BOOT0_HOOK infrastructure. 566 * 567 * The header is always at 0x800 (as we now use a payload 568 * prepadded using the boot0 hook for all targets): the first 569 * 4 bytes of these images can safely be overwritten using the 570 * boot magic. 571 */ 572 tparams->header_size = RK_SPL_HDR_START; 573 574 /* Allocate, clear and install the header */ 575 tparams->hdr = malloc(tparams->header_size); 576 if (!tparams->hdr) { 577 fprintf(stderr, "%s: Can't alloc header: %s\n", 578 params->cmdname, strerror(errno)); 579 exit(EXIT_FAILURE); 580 } 581 memset(tparams->hdr, 0, tparams->header_size); 582 583 /* 584 * We need to store the original file-size (i.e. before padding), as 585 * imagetool does not set this during its adjustment of file_size. 586 */ 587 params->orig_file_size = tparams->header_size + 588 spl_params.init_size + spl_params.boot_size; 589 590 params->file_size = ROUND(params->orig_file_size, RK_SIZE_ALIGN); 591 592 /* Ignoring pad len, since we are using our own copy_image() */ 593 return 0; 594 } 595 596 static int pad_file(struct image_tool_params *params, int ifd, int pad) 597 { 598 uint8_t zeros[4096]; 599 600 memset(zeros, 0, sizeof(zeros)); 601 602 while (pad > 0) { 603 int todo = sizeof(zeros); 604 605 if (todo > pad) 606 todo = pad; 607 if (write(ifd, (char *)&zeros, todo) != todo) { 608 fprintf(stderr, "%s: Write error on %s: %s\n", 609 params->cmdname, params->imagefile, 610 strerror(errno)); 611 return -1; 612 } 613 pad -= todo; 614 } 615 616 return 0; 617 } 618 619 static int copy_file(struct image_tool_params *params, int ifd, 620 const char *file, int padded_size) 621 { 622 int dfd; 623 struct stat sbuf; 624 unsigned char *ptr; 625 int size; 626 627 if (params->vflag) 628 fprintf(stderr, "Adding Image %s\n", file); 629 630 dfd = open(file, O_RDONLY | O_BINARY); 631 if (dfd < 0) { 632 fprintf(stderr, "%s: Can't open %s: %s\n", 633 params->cmdname, file, strerror(errno)); 634 return -1; 635 } 636 637 if (fstat(dfd, &sbuf) < 0) { 638 fprintf(stderr, "%s: Can't stat %s: %s\n", 639 params->cmdname, file, strerror(errno)); 640 goto err_close; 641 } 642 643 if (params->vflag) 644 fprintf(stderr, "Size %u(pad to %u)\n", 645 (int)sbuf.st_size, padded_size); 646 647 ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, dfd, 0); 648 if (ptr == MAP_FAILED) { 649 fprintf(stderr, "%s: Can't read %s: %s\n", 650 params->cmdname, file, strerror(errno)); 651 goto err_munmap; 652 } 653 654 size = sbuf.st_size; 655 if (write(ifd, ptr, size) != size) { 656 fprintf(stderr, "%s: Write error on %s: %s\n", 657 params->cmdname, params->imagefile, strerror(errno)); 658 goto err_munmap; 659 } 660 661 munmap((void *)ptr, sbuf.st_size); 662 close(dfd); 663 return pad_file(params, ifd, padded_size - size); 664 665 err_munmap: 666 munmap((void *)ptr, sbuf.st_size); 667 err_close: 668 close(dfd); 669 return -1; 670 } 671 672 int rockchip_copy_image(int ifd, struct image_tool_params *params) 673 { 674 int ret; 675 676 ret = copy_file(params, ifd, spl_params.init_file, 677 spl_params.init_size); 678 if (ret) 679 return ret; 680 681 if (spl_params.boot_file) { 682 ret = copy_file(params, ifd, spl_params.boot_file, 683 spl_params.boot_size); 684 if (ret) 685 return ret; 686 } 687 688 return pad_file(params, ifd, 689 params->file_size - params->orig_file_size); 690 } 691