1 /* 2 * Copyright (C) 2016 Google, Inc 3 * Written by Simon Glass <sjg@chromium.org> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <boot_rkimg.h> 10 #include <errno.h> 11 #include <image.h> 12 #include <linux/libfdt.h> 13 #include <spl.h> 14 #include <malloc.h> 15 16 #ifndef CONFIG_SYS_BOOTM_LEN 17 #define CONFIG_SYS_BOOTM_LEN (64 << 20) 18 #endif 19 20 /** 21 * spl_fit_get_image_name(): By using the matching configuration subnode, 22 * retrieve the name of an image, specified by a property name and an index 23 * into that. 24 * @fit: Pointer to the FDT blob. 25 * @images: Offset of the /images subnode. 26 * @type: Name of the property within the configuration subnode. 27 * @index: Index into the list of strings in this property. 28 * @outname: Name of the image 29 * 30 * Return: 0 on success, or a negative error number 31 */ 32 static int spl_fit_get_image_name(const void *fit, int images, 33 const char *type, int index, 34 char **outname) 35 { 36 const char *name, *str; 37 __maybe_unused int node; 38 int conf_node; 39 int len, i; 40 41 conf_node = fit_find_config_node(fit); 42 if (conf_node < 0) { 43 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 44 printf("No matching DT out of these options:\n"); 45 for (node = fdt_first_subnode(fit, conf_node); 46 node >= 0; 47 node = fdt_next_subnode(fit, node)) { 48 name = fdt_getprop(fit, node, "description", &len); 49 printf(" %s\n", name); 50 } 51 #endif 52 return conf_node; 53 } 54 55 name = fdt_getprop(fit, conf_node, type, &len); 56 if (!name) { 57 debug("cannot find property '%s': %d\n", type, len); 58 return -EINVAL; 59 } 60 61 str = name; 62 for (i = 0; i < index; i++) { 63 str = strchr(str, '\0') + 1; 64 if (!str || (str - name >= len)) { 65 debug("no string for index %d\n", index); 66 return -E2BIG; 67 } 68 } 69 70 *outname = (char *)str; 71 return 0; 72 } 73 74 /** 75 * spl_fit_get_image_node(): By using the matching configuration subnode, 76 * retrieve the name of an image, specified by a property name and an index 77 * into that. 78 * @fit: Pointer to the FDT blob. 79 * @images: Offset of the /images subnode. 80 * @type: Name of the property within the configuration subnode. 81 * @index: Index into the list of strings in this property. 82 * 83 * Return: the node offset of the respective image node or a negative 84 * error number. 85 */ 86 static int spl_fit_get_image_node(const void *fit, int images, 87 const char *type, int index) 88 { 89 char *str; 90 int err; 91 int node; 92 93 err = spl_fit_get_image_name(fit, images, type, index, &str); 94 if (err) 95 return err; 96 97 debug("%s: '%s'\n", type, str); 98 99 node = fdt_subnode_offset(fit, images, str); 100 if (node < 0) { 101 debug("cannot find image node '%s': %d\n", str, node); 102 return -EINVAL; 103 } 104 105 return node; 106 } 107 108 static int get_aligned_image_offset(struct spl_load_info *info, int offset) 109 { 110 /* 111 * If it is a FS read, get the first address before offset which is 112 * aligned to ARCH_DMA_MINALIGN. If it is raw read return the 113 * block number to which offset belongs. 114 */ 115 if (info->filename) 116 return offset & ~(ARCH_DMA_MINALIGN - 1); 117 118 return offset / info->bl_len; 119 } 120 121 static int get_aligned_image_overhead(struct spl_load_info *info, int offset) 122 { 123 /* 124 * If it is a FS read, get the difference between the offset and 125 * the first address before offset which is aligned to 126 * ARCH_DMA_MINALIGN. If it is raw read return the offset within the 127 * block. 128 */ 129 if (info->filename) 130 return offset & (ARCH_DMA_MINALIGN - 1); 131 132 return offset % info->bl_len; 133 } 134 135 static int get_aligned_image_size(struct spl_load_info *info, int data_size, 136 int offset) 137 { 138 data_size = data_size + get_aligned_image_overhead(info, offset); 139 140 if (info->filename) 141 return data_size; 142 143 return (data_size + info->bl_len - 1) / info->bl_len; 144 } 145 146 /** 147 * spl_load_fit_image(): load the image described in a certain FIT node 148 * @info: points to information about the device to load data from 149 * @sector: the start sector of the FIT image on the device 150 * @fit: points to the flattened device tree blob describing the FIT 151 * image 152 * @base_offset: the beginning of the data area containing the actual 153 * image data, relative to the beginning of the FIT 154 * @node: offset of the DT node describing the image to load (relative 155 * to @fit) 156 * @image_info: will be filled with information about the loaded image 157 * If the FIT node does not contain a "load" (address) property, 158 * the image gets loaded to the address pointed to by the 159 * load_addr member in this struct. 160 * 161 * Return: 0 on success or a negative error number. 162 */ 163 static int spl_load_fit_image(struct spl_load_info *info, ulong sector, 164 void *fit, ulong base_offset, int node, 165 struct spl_image_info *image_info) 166 { 167 int offset; 168 size_t length; 169 int len; 170 ulong size; 171 ulong load_addr, load_ptr; 172 void *src; 173 ulong overhead; 174 int nr_sectors; 175 int align_len = ARCH_DMA_MINALIGN - 1; 176 uint8_t image_comp = -1, type = -1; 177 const void *data; 178 bool external_data = false; 179 180 if (IS_ENABLED(CONFIG_SPL_OS_BOOT) && IS_ENABLED(CONFIG_SPL_GZIP)) { 181 if (fit_image_get_comp(fit, node, &image_comp)) 182 puts("Cannot get image compression format.\n"); 183 else 184 debug("%s ", genimg_get_comp_name(image_comp)); 185 186 if (fit_image_get_type(fit, node, &type)) 187 puts("Cannot get image type.\n"); 188 else 189 debug("%s ", genimg_get_type_name(type)); 190 } 191 192 if (fit_image_get_load(fit, node, &load_addr)) 193 load_addr = image_info->load_addr; 194 195 if (!fit_image_get_data_position(fit, node, &offset)) { 196 external_data = true; 197 } else if (!fit_image_get_data_offset(fit, node, &offset)) { 198 offset += base_offset; 199 external_data = true; 200 } 201 202 if (external_data) { 203 /* External data */ 204 if (fit_image_get_data_size(fit, node, &len)) 205 return -ENOENT; 206 207 load_ptr = (load_addr + align_len) & ~align_len; 208 #if defined(CONFIG_ARCH_ROCKCHIP) 209 if ((load_ptr < CONFIG_SYS_SDRAM_BASE) || 210 (load_ptr >= CONFIG_SYS_SDRAM_BASE + SDRAM_MAX_SIZE)) 211 load_ptr = (ulong)memalign(ARCH_DMA_MINALIGN, len); 212 #endif 213 length = len; 214 215 overhead = get_aligned_image_overhead(info, offset); 216 nr_sectors = get_aligned_image_size(info, length, offset); 217 218 if (info->read(info, 219 sector + get_aligned_image_offset(info, offset), 220 nr_sectors, (void *)load_ptr) != nr_sectors) 221 return -EIO; 222 223 debug("External data: dst=%lx, offset=%x, size=%lx\n", 224 load_ptr, offset, (unsigned long)length); 225 src = (void *)load_ptr + overhead; 226 } else { 227 /* Embedded data */ 228 if (fit_image_get_data(fit, node, &data, &length)) { 229 puts("Cannot get image data/size\n"); 230 return -ENOENT; 231 } 232 debug("Embedded data: dst=%lx, size=%lx\n", load_addr, 233 (unsigned long)length); 234 src = (void *)data; 235 } 236 237 /* Check hashes and signature */ 238 printf("## Checking %s ... ", 239 fit_get_name(fit, node, NULL)); 240 #ifdef CONFIG_FIT_SPL_PRINT 241 printf("\n"); 242 fit_image_print(fit, node, ""); 243 #endif 244 if (!fit_image_verify_with_data(fit, node, 245 src, length)) 246 return -EPERM; 247 puts("OK\n"); 248 249 #ifdef CONFIG_SPL_FIT_IMAGE_POST_PROCESS 250 board_fit_image_post_process(fit, node, (ulong *)&load_addr, 251 (ulong **)&src, &length); 252 #endif 253 254 if (IS_ENABLED(CONFIG_SPL_OS_BOOT) && 255 IS_ENABLED(CONFIG_SPL_GZIP) && 256 image_comp == IH_COMP_GZIP && 257 type == IH_TYPE_KERNEL) { 258 size = length; 259 if (gunzip((void *)load_addr, CONFIG_SYS_BOOTM_LEN, 260 src, &size)) { 261 puts("Uncompressing error\n"); 262 return -EIO; 263 } 264 length = size; 265 } else { 266 memcpy((void *)load_addr, src, length); 267 } 268 269 if (image_info) { 270 image_info->load_addr = load_addr; 271 image_info->size = length; 272 image_info->entry_point = fdt_getprop_u32(fit, node, "entry"); 273 } 274 275 return 0; 276 } 277 278 static int spl_fit_append_fdt(struct spl_image_info *spl_image, 279 struct spl_load_info *info, ulong sector, 280 void *fit, int images, ulong base_offset) 281 { 282 struct spl_image_info image_info; 283 int node, ret; 284 285 /* Figure out which device tree the board wants to use */ 286 node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP, 0); 287 if (node < 0) { 288 debug("%s: cannot find FDT node\n", __func__); 289 return node; 290 } 291 292 /* 293 * Read the device tree and place it after the image. 294 * Align the destination address to ARCH_DMA_MINALIGN. 295 */ 296 image_info.load_addr = spl_image->load_addr + spl_image->size; 297 ret = spl_load_fit_image(info, sector, fit, base_offset, node, 298 &image_info); 299 300 if (ret < 0) 301 return ret; 302 303 /* Make the load-address of the FDT available for the SPL framework */ 304 spl_image->fdt_addr = (void *)image_info.load_addr; 305 #if !CONFIG_IS_ENABLED(FIT_IMAGE_TINY) 306 /* Try to make space, so we can inject details on the loadables */ 307 ret = fdt_shrink_to_minimum(spl_image->fdt_addr, 8192); 308 #endif 309 310 return ret; 311 } 312 313 static int spl_fit_record_loadable(const void *fit, int images, int index, 314 void *blob, struct spl_image_info *image) 315 { 316 int ret = 0; 317 #if !CONFIG_IS_ENABLED(FIT_IMAGE_TINY) 318 char *name; 319 int node; 320 321 ret = spl_fit_get_image_name(fit, images, "loadables", 322 index, &name); 323 if (ret < 0) 324 return ret; 325 326 node = spl_fit_get_image_node(fit, images, "loadables", index); 327 328 ret = fdt_record_loadable(blob, index, name, image->load_addr, 329 image->size, image->entry_point, 330 fdt_getprop(fit, node, "type", NULL), 331 fdt_getprop(fit, node, "os", NULL)); 332 #endif 333 return ret; 334 } 335 336 static int spl_fit_image_get_os(const void *fit, int noffset, uint8_t *os) 337 { 338 #if CONFIG_IS_ENABLED(FIT_IMAGE_TINY) 339 return -ENOTSUPP; 340 #else 341 return fit_image_get_os(fit, noffset, os); 342 #endif 343 } 344 345 __weak int spl_fit_standalone_release(uintptr_t entry_point) 346 { 347 return 0; 348 } 349 350 static void *spl_fit_load_blob(struct spl_load_info *info, 351 ulong sector, void *fit_header, 352 int *base_offset) 353 { 354 int align_len = ARCH_DMA_MINALIGN - 1; 355 ulong count; 356 ulong size; 357 int sectors; 358 void *fit; 359 360 /* 361 * For FIT with external data, figure out where the external images 362 * start. This is the base for the data-offset properties in each 363 * image. 364 */ 365 size = fdt_totalsize(fit_header); 366 size = FIT_ALIGN(size); 367 *base_offset = FIT_ALIGN(size); 368 369 /* 370 * So far we only have one block of data from the FIT. Read the entire 371 * thing, including that first block, placing it so it finishes before 372 * where we will load the image. 373 * 374 * Note that we will load the image such that its first byte will be 375 * at the load address. Since that byte may be part-way through a 376 * block, we may load the image up to one block before the load 377 * address. So take account of that here by subtracting an addition 378 * block length from the FIT start position. 379 * 380 * In fact the FIT has its own load address, but we assume it cannot 381 * be before CONFIG_SYS_TEXT_BASE. 382 * 383 * For FIT with data embedded, data is loaded as part of FIT image. 384 * For FIT with external data, data is not loaded in this step. 385 */ 386 fit = (void *)((CONFIG_SYS_TEXT_BASE - size - info->bl_len - 387 align_len) & ~align_len); 388 sectors = get_aligned_image_size(info, size, 0); 389 count = info->read(info, sector, sectors, fit); 390 debug("fit read sector %lx, sectors=%d, dst=%p, count=%lu\n", 391 sector, sectors, fit, count); 392 if (count == 0) 393 return NULL; 394 395 return fit; 396 } 397 398 #ifdef CONFIG_SPL_FIT_LOAD_KERNEL 399 #ifdef CONFIG_SPL_LIBDISK_SUPPORT 400 __weak const char *spl_kernel_partition(struct spl_image_info *spl, 401 struct spl_load_info *info) 402 { 403 return PART_BOOT; 404 } 405 #endif 406 407 static int spl_load_kernel_fit(struct spl_image_info *spl_image, 408 struct spl_load_info *info) 409 { 410 /* 411 * Never change the image order. 412 * 413 * Considering thunder-boot feature, there maybe asynchronous 414 * loading operation of these images and ramdisk is usually to 415 * be the last one. 416 * 417 * The .its content rule of kernel fit image follows U-Boot proper. 418 */ 419 const char *images[] = { FIT_FDT_PROP, FIT_KERNEL_PROP, FIT_RAMDISK_PROP, }; 420 struct spl_image_info image_info; 421 char fit_header[info->bl_len]; 422 int images_noffset; 423 int base_offset; 424 int sector; 425 int node, ret, i; 426 void *fit; 427 428 if (spl_image->next_stage != SPL_NEXT_STAGE_KERNEL) 429 return 0; 430 431 #ifdef CONFIG_SPL_LIBDISK_SUPPORT 432 const char *part_name = PART_BOOT; 433 disk_partition_t part_info; 434 435 part_name = spl_kernel_partition(spl_image, info); 436 if (part_get_info_by_name(info->dev, part_name, &part_info) <= 0) { 437 printf("%s: no partition\n", __func__); 438 return -EINVAL; 439 } 440 sector = part_info.start; 441 #else 442 sector = CONFIG_SPL_FIT_LOAD_KERNEL_SECTOR; 443 #endif 444 if (info->read(info, sector, 1, &fit_header) != 1) { 445 debug("%s: no memory\n", __func__); 446 return -EIO; 447 } 448 449 if (image_get_magic((void *)&fit_header) != FDT_MAGIC) { 450 debug("%s: Not fit magic\n", __func__); 451 return -EINVAL; 452 } 453 454 fit = spl_fit_load_blob(info, sector, fit_header, &base_offset); 455 if (!fit) { 456 debug("%s: Cannot load blob\n", __func__); 457 return -ENODEV; 458 } 459 460 /* verify the configure node by keys, if required */ 461 #ifdef CONFIG_SPL_FIT_SIGNATURE 462 int conf_noffset; 463 464 conf_noffset = fit_conf_get_node(fit, NULL); 465 if (conf_noffset <= 0) { 466 printf("No default config node\n"); 467 return -EINVAL; 468 } 469 470 ret = fit_config_verify(fit, conf_noffset); 471 if (ret) { 472 printf("fit verify configure failed, ret=%d\n", ret); 473 return ret; 474 } 475 printf("\n"); 476 #endif 477 images_noffset = fdt_path_offset(fit, FIT_IMAGES_PATH); 478 if (images_noffset < 0) { 479 debug("%s: Cannot find /images node: %d\n", 480 __func__, images_noffset); 481 return images_noffset; 482 } 483 484 for (i = 0; i < ARRAY_SIZE(images); i++) { 485 node = spl_fit_get_image_node(fit, images_noffset, 486 images[i], 0); 487 if (node < 0) { 488 debug("No image: %s\n", images[i]); 489 continue; 490 } 491 492 ret = spl_load_fit_image(info, sector, fit, base_offset, 493 node, &image_info); 494 if (ret) 495 return ret; 496 497 /* initial addr or entry point */ 498 if (!strcmp(images[i], FIT_FDT_PROP)) 499 spl_image->fdt_addr = (void *)image_info.load_addr; 500 else if (!strcmp(images[i], FIT_KERNEL_PROP)) 501 spl_image->entry_point_os = image_info.load_addr; 502 } 503 504 debug("entry_point=0x%08lx, entry_point_os=0x%08lx, fdt_addr=0x%08lx\n", 505 spl_image->entry_point, spl_image->entry_point_os, 506 (ulong)spl_image->fdt_addr); 507 508 return 0; 509 } 510 #endif 511 512 static int spl_internal_load_simple_fit(struct spl_image_info *spl_image, 513 struct spl_load_info *info, 514 ulong sector, void *fit_header) 515 { 516 struct spl_image_info image_info; 517 int base_offset; 518 int images, ret; 519 int index = 0; 520 int node = -1; 521 void *fit; 522 523 fit = spl_fit_load_blob(info, sector, fit_header, &base_offset); 524 if (!fit) { 525 debug("%s: Cannot load blob\n", __func__); 526 return -1; 527 } 528 529 /* find the node holding the images information */ 530 images = fdt_path_offset(fit, FIT_IMAGES_PATH); 531 if (images < 0) { 532 debug("%s: Cannot find /images node: %d\n", __func__, images); 533 return -1; 534 } 535 536 /* if board sigs verify required, check self */ 537 if (fit_board_verify_required_sigs() && 538 !IS_ENABLED(CONFIG_SPL_FIT_SIGNATURE)) { 539 printf("Verified-boot requires CONFIG_SPL_FIT_SIGNATURE enabled\n"); 540 hang(); 541 } 542 543 /* verify the configure node by keys, if required */ 544 #ifdef CONFIG_SPL_FIT_SIGNATURE 545 int conf_noffset; 546 547 conf_noffset = fit_conf_get_node(fit, NULL); 548 if (conf_noffset <= 0) { 549 printf("No default config node\n"); 550 return -EINVAL; 551 } 552 553 ret = fit_config_verify(fit, conf_noffset); 554 if (ret) { 555 printf("fit verify configure failed, ret=%d\n", ret); 556 return ret; 557 } 558 printf("\n"); 559 560 #ifdef CONFIG_SPL_FIT_ROLLBACK_PROTECT 561 uint32_t this_index, min_index; 562 563 ret = fit_rollback_index_verify(fit, FIT_ROLLBACK_INDEX_SPL, 564 &this_index, &min_index); 565 if (ret) { 566 printf("fit failed to get rollback index, ret=%d\n", ret); 567 return ret; 568 } else if (this_index < min_index) { 569 printf("fit reject rollback: %d < %d(min)\n", 570 this_index, min_index); 571 return -EINVAL; 572 } 573 574 printf("rollback index: %d >= %d(min), OK\n", this_index, min_index); 575 #endif 576 #endif 577 578 /* 579 * If required to start the other core before load "loadables" 580 * firmwares, use the config "standalone" to load the other core's 581 * firmware, then start it. 582 * Normally, different cores' firmware is attach to the config 583 * "loadables" and load them together. 584 */ 585 if (node < 0) 586 node = spl_fit_get_image_node(fit, images, FIT_STANDALONE_PROP, 587 0); 588 if (node > 0) { 589 /* Load the image and set up the spl_image structure */ 590 ret = spl_load_fit_image(info, sector, fit, base_offset, node, 591 &image_info); 592 if (!ret) { 593 if (image_info.entry_point == FDT_ERROR) 594 image_info.entry_point = image_info.load_addr; 595 596 ret = spl_fit_standalone_release(image_info.entry_point); 597 if (ret) 598 printf("Start standalone fail, ret = %d\n", 599 ret); 600 } 601 602 /* standalone is special one, continue to find others */ 603 node = -1; 604 } 605 606 /* 607 * Find the U-Boot image using the following search order: 608 * - start at 'firmware' (e.g. an ARM Trusted Firmware) 609 * - fall back 'kernel' (e.g. a Falcon-mode OS boot 610 * - fall back to using the first 'loadables' entry 611 */ 612 if (node < 0) 613 node = spl_fit_get_image_node(fit, images, FIT_FIRMWARE_PROP, 614 0); 615 #ifdef CONFIG_SPL_OS_BOOT 616 if (node < 0) 617 node = spl_fit_get_image_node(fit, images, FIT_KERNEL_PROP, 0); 618 #endif 619 if (node < 0) { 620 debug("could not find firmware image, trying loadables...\n"); 621 node = spl_fit_get_image_node(fit, images, "loadables", 0); 622 /* 623 * If we pick the U-Boot image from "loadables", start at 624 * the second image when later loading additional images. 625 */ 626 index = 1; 627 } 628 if (node < 0) { 629 debug("%s: Cannot find u-boot image node: %d\n", 630 __func__, node); 631 return -1; 632 } 633 634 /* Load the image and set up the spl_image structure */ 635 ret = spl_load_fit_image(info, sector, fit, base_offset, node, 636 spl_image); 637 if (ret) 638 return ret; 639 640 /* 641 * For backward compatibility, we treat the first node that is 642 * as a U-Boot image, if no OS-type has been declared. 643 */ 644 if (!spl_fit_image_get_os(fit, node, &spl_image->os)) 645 debug("Image OS is %s\n", genimg_get_os_name(spl_image->os)); 646 #if !defined(CONFIG_SPL_OS_BOOT) 647 else 648 spl_image->os = IH_OS_U_BOOT; 649 #endif 650 651 /* 652 * Booting a next-stage U-Boot may require us to append the FDT. 653 * We allow this to fail, as the U-Boot image might embed its FDT. 654 */ 655 if (spl_image->os == IH_OS_U_BOOT) 656 spl_fit_append_fdt(spl_image, info, sector, fit, 657 images, base_offset); 658 659 /* Now check if there are more images for us to load */ 660 for (; ; index++) { 661 uint8_t os_type = IH_OS_INVALID; 662 663 node = spl_fit_get_image_node(fit, images, "loadables", index); 664 if (node < 0) 665 break; 666 667 if (!spl_fit_image_get_os(fit, node, &os_type)) 668 debug("Loadable is %s\n", genimg_get_os_name(os_type)); 669 670 /* skip U-Boot ? */ 671 if (spl_image->next_stage == SPL_NEXT_STAGE_KERNEL && 672 os_type == IH_OS_U_BOOT) 673 continue; 674 675 ret = spl_load_fit_image(info, sector, fit, base_offset, node, 676 &image_info); 677 if (ret < 0) 678 continue; 679 680 if (os_type == IH_OS_U_BOOT) { 681 spl_fit_append_fdt(&image_info, info, sector, 682 fit, images, base_offset); 683 spl_image->fdt_addr = image_info.fdt_addr; 684 } 685 686 /* 687 * If the "firmware" image did not provide an entry point, 688 * use the first valid entry point from the loadables. 689 */ 690 if (spl_image->entry_point == FDT_ERROR && 691 image_info.entry_point != FDT_ERROR) 692 spl_image->entry_point = image_info.entry_point; 693 694 /* Record our loadables into the FDT */ 695 if (spl_image->fdt_addr) 696 spl_fit_record_loadable(fit, images, index, 697 spl_image->fdt_addr, 698 &image_info); 699 } 700 701 /* 702 * If a platform does not provide CONFIG_SYS_UBOOT_START, U-Boot's 703 * Makefile will set it to 0 and it will end up as the entry point 704 * here. What it actually means is: use the load address. 705 */ 706 if (spl_image->entry_point == FDT_ERROR || spl_image->entry_point == 0) 707 spl_image->entry_point = spl_image->load_addr; 708 709 return 0; 710 } 711 712 int spl_load_simple_fit(struct spl_image_info *spl_image, 713 struct spl_load_info *info, ulong sector, void *fit) 714 { 715 ulong sector_offs = sector; 716 int ret = -EINVAL; 717 int i; 718 719 for (i = 0; i < CONFIG_SPL_FIT_IMAGE_MULTIPLE; i++) { 720 if (i > 0) { 721 sector_offs += 722 i * ((CONFIG_SPL_FIT_IMAGE_KB << 10) / info->bl_len); 723 printf("Trying fit image at 0x%lx sector\n", sector_offs); 724 if (info->read(info, sector_offs, 1, fit) != 1) { 725 printf("IO error\n"); 726 continue; 727 } 728 } 729 730 if (image_get_magic(fit) != FDT_MAGIC) { 731 printf("Not fit magic\n"); 732 continue; 733 } 734 735 ret = spl_internal_load_simple_fit(spl_image, info, 736 sector_offs, fit); 737 if (!ret) { 738 #ifdef CONFIG_SPL_FIT_LOAD_KERNEL 739 ret = spl_load_kernel_fit(spl_image, info); 740 #endif 741 return ret; 742 } 743 } 744 745 return ret; 746 } 747 748