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83d290c5 1// SPDX-License-Identifier: GPL-2.0+
f1dcee59
SG
2/*
3 * Copyright (C) 2016 Google, Inc
4 * Written by Simon Glass <[email protected]>
f1dcee59
SG
5 */
6
7#include <common.h>
8#include <errno.h>
3313ae66 9#include <fpga.h>
0c670fc1 10#include <gzip.h>
f1dcee59 11#include <image.h>
f7ae49fc 12#include <log.h>
ea376ebc 13#include <malloc.h>
f1dcee59 14#include <spl.h>
3a8ee3df 15#include <sysinfo.h>
90526e9f 16#include <asm/cache.h>
401d1c4f 17#include <asm/global_data.h>
ea376ebc 18#include <linux/libfdt.h>
f1dcee59 19
b83edfbd
LA
20DECLARE_GLOBAL_DATA_PTR;
21
ea376ebc
JJH
22#ifndef CONFIG_SPL_LOAD_FIT_APPLY_OVERLAY_BUF_SZ
23#define CONFIG_SPL_LOAD_FIT_APPLY_OVERLAY_BUF_SZ (64 * 1024)
24#endif
25
7264f292
YS
26#ifndef CONFIG_SYS_BOOTM_LEN
27#define CONFIG_SYS_BOOTM_LEN (64 << 20)
28#endif
29
e246bfcf
YL
30__weak void board_spl_fit_post_load(ulong load_addr, size_t length)
31{
32}
33
34__weak ulong board_spl_fit_size_align(ulong size)
35{
36 return size;
37}
38
152781d4
JJH
39static int find_node_from_desc(const void *fit, int node, const char *str)
40{
41 int child;
42
43 if (node < 0)
44 return -EINVAL;
45
46 /* iterate the FIT nodes and find a matching description */
47 for (child = fdt_first_subnode(fit, node); child >= 0;
48 child = fdt_next_subnode(fit, child)) {
49 int len;
50 const char *desc = fdt_getprop(fit, child, "description", &len);
51
52 if (!desc)
53 continue;
54
55 if (!strcmp(desc, str))
56 return child;
57 }
58
59 return -ENOENT;
60}
61
736806fb 62/**
a616c783 63 * spl_fit_get_image_name(): By using the matching configuration subnode,
736806fb
AP
64 * retrieve the name of an image, specified by a property name and an index
65 * into that.
66 * @fit: Pointer to the FDT blob.
67 * @images: Offset of the /images subnode.
68 * @type: Name of the property within the configuration subnode.
69 * @index: Index into the list of strings in this property.
a616c783 70 * @outname: Name of the image
736806fb 71 *
a616c783 72 * Return: 0 on success, or a negative error number
736806fb 73 */
a616c783
PT
74static int spl_fit_get_image_name(const void *fit, int images,
75 const char *type, int index,
c1648d05 76 const char **outname)
4b9340ab 77{
3a8ee3df 78 struct udevice *sysinfo;
4b9340ab 79 const char *name, *str;
a616c783
PT
80 __maybe_unused int node;
81 int conf_node;
4b9340ab 82 int len, i;
152781d4 83 bool found = true;
4b9340ab 84
3863f840 85 conf_node = fit_find_config_node(fit);
4b9340ab
AP
86 if (conf_node < 0) {
87#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
88 printf("No matching DT out of these options:\n");
89 for (node = fdt_first_subnode(fit, conf_node);
90 node >= 0;
91 node = fdt_next_subnode(fit, node)) {
92 name = fdt_getprop(fit, node, "description", &len);
93 printf(" %s\n", name);
f1dcee59 94 }
4b9340ab
AP
95#endif
96 return conf_node;
97 }
f1dcee59 98
4b9340ab
AP
99 name = fdt_getprop(fit, conf_node, type, &len);
100 if (!name) {
101 debug("cannot find property '%s': %d\n", type, len);
102 return -EINVAL;
103 }
f1dcee59 104
4b9340ab
AP
105 str = name;
106 for (i = 0; i < index; i++) {
107 str = strchr(str, '\0') + 1;
108 if (!str || (str - name >= len)) {
152781d4
JJH
109 found = false;
110 break;
4b9340ab 111 }
f1dcee59
SG
112 }
113
3a8ee3df 114 if (!found && CONFIG_IS_ENABLED(SYSINFO) && !sysinfo_get(&sysinfo)) {
152781d4
JJH
115 int rc;
116 /*
3a8ee3df
SG
117 * no string in the property for this index. Check if the
118 * sysinfo-level code can supply one.
152781d4 119 */
3a8ee3df
SG
120 rc = sysinfo_get_fit_loadable(sysinfo, index - i - 1, type,
121 &str);
152781d4
JJH
122 if (rc && rc != -ENOENT)
123 return rc;
124
125 if (!rc) {
126 /*
3a8ee3df 127 * The sysinfo provided a name for a loadable.
152781d4
JJH
128 * Try to match it against the description properties
129 * first. If no matching node is found, use it as a
130 * node name.
131 */
132 int node;
133 int images = fdt_path_offset(fit, FIT_IMAGES_PATH);
134
135 node = find_node_from_desc(fit, images, str);
136 if (node > 0)
137 str = fdt_get_name(fit, node, NULL);
138
139 found = true;
140 }
141 }
142
143 if (!found) {
144 debug("no string for index %d\n", index);
145 return -E2BIG;
146 }
147
148 *outname = str;
a616c783
PT
149 return 0;
150}
151
152/**
153 * spl_fit_get_image_node(): By using the matching configuration subnode,
154 * retrieve the name of an image, specified by a property name and an index
155 * into that.
156 * @fit: Pointer to the FDT blob.
157 * @images: Offset of the /images subnode.
158 * @type: Name of the property within the configuration subnode.
159 * @index: Index into the list of strings in this property.
160 *
161 * Return: the node offset of the respective image node or a negative
162 * error number.
163 */
164static int spl_fit_get_image_node(const void *fit, int images,
165 const char *type, int index)
166{
c1648d05 167 const char *str;
a616c783
PT
168 int err;
169 int node;
170
171 err = spl_fit_get_image_name(fit, images, type, index, &str);
172 if (err)
173 return err;
174
4b9340ab 175 debug("%s: '%s'\n", type, str);
a616c783 176
4b9340ab
AP
177 node = fdt_subnode_offset(fit, images, str);
178 if (node < 0) {
19141d69 179 pr_err("cannot find image node '%s': %d\n", str, node);
4b9340ab 180 return -EINVAL;
f1dcee59 181 }
f1dcee59 182
736806fb 183 return node;
f1dcee59
SG
184}
185
eafd5410
LV
186static int get_aligned_image_offset(struct spl_load_info *info, int offset)
187{
188 /*
189 * If it is a FS read, get the first address before offset which is
190 * aligned to ARCH_DMA_MINALIGN. If it is raw read return the
191 * block number to which offset belongs.
192 */
193 if (info->filename)
194 return offset & ~(ARCH_DMA_MINALIGN - 1);
195
196 return offset / info->bl_len;
197}
198
199static int get_aligned_image_overhead(struct spl_load_info *info, int offset)
200{
201 /*
202 * If it is a FS read, get the difference between the offset and
203 * the first address before offset which is aligned to
204 * ARCH_DMA_MINALIGN. If it is raw read return the offset within the
205 * block.
206 */
207 if (info->filename)
208 return offset & (ARCH_DMA_MINALIGN - 1);
209
210 return offset % info->bl_len;
211}
212
213static int get_aligned_image_size(struct spl_load_info *info, int data_size,
214 int offset)
215{
3cc1f380
LV
216 data_size = data_size + get_aligned_image_overhead(info, offset);
217
eafd5410 218 if (info->filename)
3cc1f380 219 return data_size;
eafd5410
LV
220
221 return (data_size + info->bl_len - 1) / info->bl_len;
222}
223
8baa3818
AP
224/**
225 * spl_load_fit_image(): load the image described in a certain FIT node
226 * @info: points to information about the device to load data from
227 * @sector: the start sector of the FIT image on the device
228 * @fit: points to the flattened device tree blob describing the FIT
a616c783 229 * image
8baa3818
AP
230 * @base_offset: the beginning of the data area containing the actual
231 * image data, relative to the beginning of the FIT
232 * @node: offset of the DT node describing the image to load (relative
a616c783 233 * to @fit)
8baa3818 234 * @image_info: will be filled with information about the loaded image
a616c783
PT
235 * If the FIT node does not contain a "load" (address) property,
236 * the image gets loaded to the address pointed to by the
237 * load_addr member in this struct.
8baa3818
AP
238 *
239 * Return: 0 on success or a negative error number.
240 */
241static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
242 void *fit, ulong base_offset, int node,
243 struct spl_image_info *image_info)
244{
3313ae66 245 int offset;
8baa3818 246 size_t length;
5fd13d97 247 int len;
933f67aa 248 ulong size;
8baa3818
AP
249 ulong load_addr, load_ptr;
250 void *src;
251 ulong overhead;
252 int nr_sectors;
253 int align_len = ARCH_DMA_MINALIGN - 1;
7264f292 254 uint8_t image_comp = -1, type = -1;
5fd13d97 255 const void *data;
a1be94b6 256 bool external_data = false;
7264f292 257
29bd8ada 258 if (IS_ENABLED(CONFIG_SPL_FPGA) ||
56419ea5
MV
259 (IS_ENABLED(CONFIG_SPL_OS_BOOT) && IS_ENABLED(CONFIG_SPL_GZIP))) {
260 if (fit_image_get_type(fit, node, &type))
261 puts("Cannot get image type.\n");
262 else
263 debug("%s ", genimg_get_type_name(type));
264 }
265
602ce1d1
KS
266 if (IS_ENABLED(CONFIG_SPL_GZIP)) {
267 fit_image_get_comp(fit, node, &image_comp);
268 debug("%s ", genimg_get_comp_name(image_comp));
7264f292 269 }
8baa3818 270
5fd13d97 271 if (fit_image_get_load(fit, node, &load_addr))
8baa3818 272 load_addr = image_info->load_addr;
8baa3818 273
a1be94b6
PF
274 if (!fit_image_get_data_position(fit, node, &offset)) {
275 external_data = true;
276 } else if (!fit_image_get_data_offset(fit, node, &offset)) {
5fd13d97 277 offset += base_offset;
a1be94b6
PF
278 external_data = true;
279 }
280
281 if (external_data) {
282 /* External data */
5fd13d97
YS
283 if (fit_image_get_data_size(fit, node, &len))
284 return -ENOENT;
285
286 load_ptr = (load_addr + align_len) & ~align_len;
287 length = len;
288
289 overhead = get_aligned_image_overhead(info, offset);
290 nr_sectors = get_aligned_image_size(info, length, offset);
291
3313ae66
MS
292 if (info->read(info,
293 sector + get_aligned_image_offset(info, offset),
5fd13d97
YS
294 nr_sectors, (void *)load_ptr) != nr_sectors)
295 return -EIO;
296
297 debug("External data: dst=%lx, offset=%x, size=%lx\n",
298 load_ptr, offset, (unsigned long)length);
299 src = (void *)load_ptr + overhead;
300 } else {
301 /* Embedded data */
302 if (fit_image_get_data(fit, node, &data, &length)) {
303 puts("Cannot get image data/size\n");
304 return -ENOENT;
305 }
306 debug("Embedded data: dst=%lx, size=%lx\n", load_addr,
307 (unsigned long)length);
308 src = (void *)data;
309 }
8baa3818 310
d154ca60
BW
311#ifdef CONFIG_SPL_FIT_SIGNATURE
312 printf("## Checking hash(es) for Image %s ... ",
313 fit_get_name(fit, node, NULL));
314 if (!fit_image_verify_with_data(fit, node,
315 src, length))
316 return -EPERM;
317 puts("OK\n");
318#endif
319
8baa3818
AP
320#ifdef CONFIG_SPL_FIT_IMAGE_POST_PROCESS
321 board_fit_image_post_process(&src, &length);
322#endif
323
975e7893 324 if (IS_ENABLED(CONFIG_SPL_GZIP) && image_comp == IH_COMP_GZIP) {
933f67aa 325 size = length;
7264f292 326 if (gunzip((void *)load_addr, CONFIG_SYS_BOOTM_LEN,
933f67aa 327 src, &size)) {
7264f292
YS
328 puts("Uncompressing error\n");
329 return -EIO;
330 }
933f67aa 331 length = size;
7264f292
YS
332 } else {
333 memcpy((void *)load_addr, src, length);
334 }
8baa3818
AP
335
336 if (image_info) {
caa7fc2c
MS
337 ulong entry_point;
338
8baa3818
AP
339 image_info->load_addr = load_addr;
340 image_info->size = length;
caa7fc2c
MS
341
342 if (!fit_image_get_entry(fit, node, &entry_point))
343 image_info->entry_point = entry_point;
344 else
345 image_info->entry_point = FDT_ERROR;
8baa3818
AP
346 }
347
348 return 0;
349}
350
d879616e
PT
351static int spl_fit_append_fdt(struct spl_image_info *spl_image,
352 struct spl_load_info *info, ulong sector,
353 void *fit, int images, ulong base_offset)
354{
355 struct spl_image_info image_info;
9d13b872 356 int node, ret = 0, index = 0;
b83edfbd
LA
357
358 /*
359 * Use the address following the image as target address for the
5675ed7c 360 * device tree.
b83edfbd 361 */
5675ed7c 362 image_info.load_addr = spl_image->load_addr + spl_image->size;
d879616e
PT
363
364 /* Figure out which device tree the board wants to use */
9d13b872 365 node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP, index++);
d879616e
PT
366 if (node < 0) {
367 debug("%s: cannot find FDT node\n", __func__);
d879616e 368
b83edfbd
LA
369 /*
370 * U-Boot did not find a device tree inside the FIT image. Use
371 * the U-Boot device tree instead.
372 */
373 if (gd->fdt_blob)
374 memcpy((void *)image_info.load_addr, gd->fdt_blob,
375 fdt_totalsize(gd->fdt_blob));
376 else
377 return node;
378 } else {
379 ret = spl_load_fit_image(info, sector, fit, base_offset, node,
380 &image_info);
381 if (ret < 0)
382 return ret;
383 }
a616c783
PT
384
385 /* Make the load-address of the FDT available for the SPL framework */
386 spl_image->fdt_addr = (void *)image_info.load_addr;
337bbb62 387#if !CONFIG_IS_ENABLED(FIT_IMAGE_TINY)
9d13b872 388 if (CONFIG_IS_ENABLED(LOAD_FIT_APPLY_OVERLAY)) {
ea376ebc
JJH
389 void *tmpbuffer = NULL;
390
9d13b872
MS
391 for (; ; index++) {
392 node = spl_fit_get_image_node(fit, images, FIT_FDT_PROP,
393 index);
24bf44cf 394 if (node == -E2BIG) {
9d13b872 395 debug("%s: No additional FDT node\n", __func__);
ea376ebc 396 break;
24bf44cf
JJH
397 } else if (node < 0) {
398 debug("%s: unable to find FDT node %d\n",
399 __func__, index);
400 continue;
9d13b872
MS
401 }
402
ea376ebc
JJH
403 if (!tmpbuffer) {
404 /*
405 * allocate memory to store the DT overlay
406 * before it is applied. It may not be used
407 * depending on how the overlay is stored, so
408 * don't fail yet if the allocation failed.
409 */
410 tmpbuffer = malloc(CONFIG_SPL_LOAD_FIT_APPLY_OVERLAY_BUF_SZ);
411 if (!tmpbuffer)
412 debug("%s: unable to allocate space for overlays\n",
413 __func__);
414 }
415 image_info.load_addr = (ulong)tmpbuffer;
9d13b872
MS
416 ret = spl_load_fit_image(info, sector, fit, base_offset,
417 node, &image_info);
418 if (ret < 0)
ea376ebc 419 break;
9d13b872 420
99329be2
JJH
421 /* Make room in FDT for changes from the overlay */
422 ret = fdt_increase_size(spl_image->fdt_addr,
423 image_info.size);
424 if (ret < 0)
ea376ebc 425 break;
99329be2 426
9d13b872
MS
427 ret = fdt_overlay_apply_verbose(spl_image->fdt_addr,
428 (void *)image_info.load_addr);
19141d69
JJH
429 if (ret) {
430 pr_err("failed to apply DT overlay %s\n",
431 fit_get_name(fit, node, NULL));
ea376ebc 432 break;
19141d69 433 }
9d13b872
MS
434
435 debug("%s: DT overlay %s applied\n", __func__,
436 fit_get_name(fit, node, NULL));
437 }
077e72c6 438 free(tmpbuffer);
ea376ebc
JJH
439 if (ret)
440 return ret;
9d13b872 441 }
99329be2
JJH
442 /* Try to make space, so we can inject details on the loadables */
443 ret = fdt_shrink_to_minimum(spl_image->fdt_addr, 8192);
444 if (ret < 0)
445 return ret;
446#endif
447
a616c783
PT
448 return ret;
449}
450
451static int spl_fit_record_loadable(const void *fit, int images, int index,
452 void *blob, struct spl_image_info *image)
453{
337bbb62
PT
454 int ret = 0;
455#if !CONFIG_IS_ENABLED(FIT_IMAGE_TINY)
c1648d05 456 const char *name;
337bbb62 457 int node;
a616c783
PT
458
459 ret = spl_fit_get_image_name(fit, images, "loadables",
460 index, &name);
461 if (ret < 0)
462 return ret;
463
464 node = spl_fit_get_image_node(fit, images, "loadables", index);
465
466 ret = fdt_record_loadable(blob, index, name, image->load_addr,
467 image->size, image->entry_point,
468 fdt_getprop(fit, node, "type", NULL),
469 fdt_getprop(fit, node, "os", NULL));
337bbb62 470#endif
d879616e
PT
471 return ret;
472}
473
337bbb62
PT
474static int spl_fit_image_get_os(const void *fit, int noffset, uint8_t *os)
475{
7296a336 476#if CONFIG_IS_ENABLED(FIT_IMAGE_TINY) && !defined(CONFIG_SPL_OS_BOOT)
cf70553e
SH
477 const char *name = fdt_getprop(fit, noffset, FIT_OS_PROP, NULL);
478
479 if (!name)
480 return -ENOENT;
481
482 /*
483 * We don't care what the type of the image actually is,
484 * only whether or not it is U-Boot. This saves some
485 * space by omitting the large table of OS types.
486 */
487 if (!strcmp(name, "u-boot"))
488 *os = IH_OS_U_BOOT;
489 else
490 *os = IH_OS_INVALID;
491
492 return 0;
337bbb62
PT
493#else
494 return fit_image_get_os(fit, noffset, os);
495#endif
496}
497
03f1f78a
AG
498/*
499 * The purpose of the FIT load buffer is to provide a memory location that is
500 * independent of the load address of any FIT component.
501 */
502static void *spl_get_fit_load_buffer(size_t size)
503{
504 void *buf;
505
506 buf = malloc(size);
507 if (!buf) {
508 pr_err("Could not get FIT buffer of %lu bytes\n", (ulong)size);
509 pr_err("\tcheck CONFIG_SYS_SPL_MALLOC_SIZE\n");
510 buf = spl_get_load_buffer(0, size);
511 }
512 return buf;
513}
514
e1eb6ada
AD
515/*
516 * Weak default function to allow customizing SPL fit loading for load-only
517 * use cases by allowing to skip the parsing/processing of the FIT contents
518 * (so that this can be done separately in a more customized fashion)
519 */
520__weak bool spl_load_simple_fit_skip_processing(void)
521{
522 return false;
523}
524
f4d7d859
SG
525int spl_load_simple_fit(struct spl_image_info *spl_image,
526 struct spl_load_info *info, ulong sector, void *fit)
f1dcee59
SG
527{
528 int sectors;
03f1f78a 529 ulong size, hsize;
f1dcee59 530 unsigned long count;
8baa3818 531 struct spl_image_info image_info;
c8bc3c0c
YS
532 int node = -1;
533 int images, ret;
03f1f78a 534 int base_offset;
411cf32d 535 int index = 0;
6b8b98d5 536 int firmware_node;
f1dcee59
SG
537
538 /*
c8bc3c0c
YS
539 * For FIT with external data, figure out where the external images
540 * start. This is the base for the data-offset properties in each
541 * image.
f1dcee59
SG
542 */
543 size = fdt_totalsize(fit);
544 size = (size + 3) & ~3;
e246bfcf 545 size = board_spl_fit_size_align(size);
f1dcee59
SG
546 base_offset = (size + 3) & ~3;
547
548 /*
549 * So far we only have one block of data from the FIT. Read the entire
03f1f78a 550 * thing, including that first block.
c8bc3c0c
YS
551 *
552 * For FIT with data embedded, data is loaded as part of FIT image.
553 * For FIT with external data, data is not loaded in this step.
f1dcee59 554 */
eafd5410 555 sectors = get_aligned_image_size(info, size, 0);
03f1f78a
AG
556 hsize = sectors * info->bl_len;
557 fit = spl_get_fit_load_buffer(hsize);
f1dcee59 558 count = info->read(info, sector, sectors, fit);
e246bfcf
YL
559 debug("fit read sector %lx, sectors=%d, dst=%p, count=%lu, size=0x%lx\n",
560 sector, sectors, fit, count, size);
561
f1dcee59
SG
562 if (count == 0)
563 return -EIO;
564
e1eb6ada
AD
565 /* skip further processing if requested to enable load-only use cases */
566 if (spl_load_simple_fit_skip_processing())
567 return 0;
568
7d5b1bf6
PR
569 if (IS_ENABLED(CONFIG_SPL_FIT_SIGNATURE)) {
570 int conf_offset = fit_find_config_node(fit);
571
572 printf("## Checking hash(es) for config %s ... ",
573 fit_get_name(fit, conf_offset, NULL));
574 if (fit_config_verify(fit, conf_offset))
575 return -EPERM;
576 puts("OK\n");
577 }
578
736806fb 579 /* find the node holding the images information */
f1dcee59
SG
580 images = fdt_path_offset(fit, FIT_IMAGES_PATH);
581 if (images < 0) {
582 debug("%s: Cannot find /images node: %d\n", __func__, images);
583 return -1;
584 }
736806fb 585
29bd8ada 586#ifdef CONFIG_SPL_FPGA
26a64223
MV
587 node = spl_fit_get_image_node(fit, images, "fpga", 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 spl_image);
592 if (ret) {
593 printf("%s: Cannot load the FPGA: %i\n", __func__, ret);
594 return ret;
595 }
3313ae66
MS
596
597 debug("FPGA bitstream at: %x, size: %x\n",
598 (u32)spl_image->load_addr, spl_image->size);
599
600 ret = fpga_load(0, (const void *)spl_image->load_addr,
601 spl_image->size, BIT_FULL);
602 if (ret) {
603 printf("%s: Cannot load the image to the FPGA\n",
604 __func__);
605 return ret;
606 }
607
3907eef1 608 puts("FPGA image loaded from FIT\n");
26a64223
MV
609 node = -1;
610 }
611#endif
612
d879616e
PT
613 /*
614 * Find the U-Boot image using the following search order:
615 * - start at 'firmware' (e.g. an ARM Trusted Firmware)
616 * - fall back 'kernel' (e.g. a Falcon-mode OS boot
617 * - fall back to using the first 'loadables' entry
618 */
619 if (node < 0)
1f8e4bf5
MS
620 node = spl_fit_get_image_node(fit, images, FIT_FIRMWARE_PROP,
621 0);
c8bc3c0c 622#ifdef CONFIG_SPL_OS_BOOT
c8bc3c0c 623 if (node < 0)
d879616e 624 node = spl_fit_get_image_node(fit, images, FIT_KERNEL_PROP, 0);
c8bc3c0c 625#endif
f1dcee59 626 if (node < 0) {
736806fb
AP
627 debug("could not find firmware image, trying loadables...\n");
628 node = spl_fit_get_image_node(fit, images, "loadables", 0);
411cf32d
AP
629 /*
630 * If we pick the U-Boot image from "loadables", start at
631 * the second image when later loading additional images.
632 */
633 index = 1;
736806fb
AP
634 }
635 if (node < 0) {
636 debug("%s: Cannot find u-boot image node: %d\n",
637 __func__, node);
f1dcee59
SG
638 return -1;
639 }
640
8baa3818
AP
641 /* Load the image and set up the spl_image structure */
642 ret = spl_load_fit_image(info, sector, fit, base_offset, node,
643 spl_image);
644 if (ret)
645 return ret;
da74d1f3 646
d879616e
PT
647 /*
648 * For backward compatibility, we treat the first node that is
649 * as a U-Boot image, if no OS-type has been declared.
650 */
337bbb62 651 if (!spl_fit_image_get_os(fit, node, &spl_image->os))
c8bc3c0c 652 debug("Image OS is %s\n", genimg_get_os_name(spl_image->os));
d879616e
PT
653#if !defined(CONFIG_SPL_OS_BOOT)
654 else
655 spl_image->os = IH_OS_U_BOOT;
c8bc3c0c 656#endif
f1dcee59 657
d879616e
PT
658 /*
659 * Booting a next-stage U-Boot may require us to append the FDT.
660 * We allow this to fail, as the U-Boot image might embed its FDT.
661 */
585b468a
DB
662 if (spl_image->os == IH_OS_U_BOOT) {
663 ret = spl_fit_append_fdt(spl_image, info, sector, fit,
664 images, base_offset);
665 if (!IS_ENABLED(CONFIG_OF_EMBED) && ret < 0)
666 return ret;
667 }
411cf32d 668
6b8b98d5 669 firmware_node = node;
411cf32d
AP
670 /* Now check if there are more images for us to load */
671 for (; ; index++) {
d879616e
PT
672 uint8_t os_type = IH_OS_INVALID;
673
411cf32d
AP
674 node = spl_fit_get_image_node(fit, images, "loadables", index);
675 if (node < 0)
676 break;
677
6b8b98d5
JJH
678 /*
679 * if the firmware is also a loadable, skip it because
680 * it already has been loaded. This is typically the case with
681 * u-boot.img generated by mkimage.
682 */
683 if (firmware_node == node)
684 continue;
685
411cf32d
AP
686 ret = spl_load_fit_image(info, sector, fit, base_offset, node,
687 &image_info);
c61b2bf3
PR
688 if (ret < 0) {
689 printf("%s: can't load image loadables index %d (ret = %d)\n",
690 __func__, index, ret);
691 return ret;
692 }
411cf32d 693
337bbb62 694 if (!spl_fit_image_get_os(fit, node, &os_type))
d879616e
PT
695 debug("Loadable is %s\n", genimg_get_os_name(os_type));
696
a616c783
PT
697 if (os_type == IH_OS_U_BOOT) {
698 spl_fit_append_fdt(&image_info, info, sector,
d879616e 699 fit, images, base_offset);
a616c783
PT
700 spl_image->fdt_addr = image_info.fdt_addr;
701 }
d879616e 702
411cf32d
AP
703 /*
704 * If the "firmware" image did not provide an entry point,
705 * use the first valid entry point from the loadables.
706 */
707 if (spl_image->entry_point == FDT_ERROR &&
708 image_info.entry_point != FDT_ERROR)
709 spl_image->entry_point = image_info.entry_point;
a616c783
PT
710
711 /* Record our loadables into the FDT */
712 if (spl_image->fdt_addr)
713 spl_fit_record_loadable(fit, images, index,
714 spl_image->fdt_addr,
715 &image_info);
411cf32d
AP
716 }
717
718 /*
719 * If a platform does not provide CONFIG_SYS_UBOOT_START, U-Boot's
720 * Makefile will set it to 0 and it will end up as the entry point
721 * here. What it actually means is: use the load address.
722 */
723 if (spl_image->entry_point == FDT_ERROR || spl_image->entry_point == 0)
724 spl_image->entry_point = spl_image->load_addr;
725
e246bfcf
YL
726 spl_image->flags |= SPL_FIT_FOUND;
727
d714a75f 728#ifdef CONFIG_IMX_HAB
e246bfcf
YL
729 board_spl_fit_post_load((ulong)fit, size);
730#endif
731
411cf32d 732 return 0;
f1dcee59 733}
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