blob: d50e1ba3feb9744f189bdf980ba3f09d58e215a5 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Simon Glass44d3a302013-05-08 08:06:00 +00002/*
3 * Copyright (c) 2013, Google Inc.
4 *
5 * (C) Copyright 2008 Semihalf
6 *
7 * (C) Copyright 2000-2006
8 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
Simon Glass44d3a302013-05-08 08:06:00 +00009 */
10
11#include <common.h>
12#include <fdt_support.h>
Simon Goldschmidte2237a22019-01-14 22:38:17 +010013#include <fdtdec.h>
Simon Glasscdbff9f2019-08-01 09:46:50 -060014#include <env.h>
Simon Glass44d3a302013-05-08 08:06:00 +000015#include <errno.h>
16#include <image.h>
Simon Glass4d72caa2020-05-10 11:40:01 -060017#include <lmb.h>
Simon Glassf7ae49f2020-05-10 11:40:05 -060018#include <log.h>
Simon Glass336d4612020-02-03 07:36:16 -070019#include <malloc.h>
Simon Glass401d1c42020-10-30 21:38:53 -060020#include <asm/global_data.h>
Masahiro Yamadab08c8c42018-03-05 01:20:11 +090021#include <linux/libfdt.h>
Joe Hershberger0eb25b62015-03-22 17:08:59 -050022#include <mapmem.h>
Simon Glass44d3a302013-05-08 08:06:00 +000023#include <asm/io.h>
Heiko Stuebner6ccb05e2019-10-23 16:46:40 +020024#include <tee/optee.h>
Simon Glass44d3a302013-05-08 08:06:00 +000025
26#ifndef CONFIG_SYS_FDT_PAD
27#define CONFIG_SYS_FDT_PAD 0x3000
28#endif
29
Masahiro Yamadac960a682018-03-21 18:03:33 +090030/* adding a ramdisk needs 0x44 bytes in version 2008.10 */
31#define FDT_RAMDISK_OVERHEAD 0x80
32
Simon Glass44d3a302013-05-08 08:06:00 +000033DECLARE_GLOBAL_DATA_PTR;
34
35static void fdt_error(const char *msg)
36{
37 puts("ERROR: ");
38 puts(msg);
39 puts(" - must RESET the board to recover.\n");
40}
41
Tom Rinic76c93a2019-05-23 07:14:07 -040042#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
Simon Glass44d3a302013-05-08 08:06:00 +000043static const image_header_t *image_get_fdt(ulong fdt_addr)
44{
45 const image_header_t *fdt_hdr = map_sysmem(fdt_addr, 0);
46
47 image_print_contents(fdt_hdr);
48
49 puts(" Verifying Checksum ... ");
50 if (!image_check_hcrc(fdt_hdr)) {
51 fdt_error("fdt header checksum invalid");
52 return NULL;
53 }
54
55 if (!image_check_dcrc(fdt_hdr)) {
56 fdt_error("fdt checksum invalid");
57 return NULL;
58 }
59 puts("OK\n");
60
61 if (!image_check_type(fdt_hdr, IH_TYPE_FLATDT)) {
62 fdt_error("uImage is not a fdt");
63 return NULL;
64 }
65 if (image_get_comp(fdt_hdr) != IH_COMP_NONE) {
66 fdt_error("uImage is compressed");
67 return NULL;
68 }
Masahiro Yamada2f0877c2013-09-19 12:10:18 +090069 if (fdt_check_header((void *)image_get_data(fdt_hdr)) != 0) {
Simon Glass44d3a302013-05-08 08:06:00 +000070 fdt_error("uImage data is not a fdt");
71 return NULL;
72 }
73 return fdt_hdr;
74}
Heiko Schocher21d29f72014-05-28 11:33:33 +020075#endif
Simon Glass44d3a302013-05-08 08:06:00 +000076
Simon Goldschmidte2237a22019-01-14 22:38:17 +010077static void boot_fdt_reserve_region(struct lmb *lmb, uint64_t addr,
78 uint64_t size)
79{
Patrick Delaunaye1d7ed32019-03-06 14:23:52 +010080 long ret;
Simon Goldschmidte2237a22019-01-14 22:38:17 +010081
82 ret = lmb_reserve(lmb, addr, size);
Patrick Delaunaye1d7ed32019-03-06 14:23:52 +010083 if (ret >= 0) {
Simon Goldschmidte2237a22019-01-14 22:38:17 +010084 debug(" reserving fdt memory region: addr=%llx size=%llx\n",
85 (unsigned long long)addr, (unsigned long long)size);
86 } else {
87 puts("ERROR: reserving fdt memory region failed ");
88 printf("(addr=%llx size=%llx)\n",
89 (unsigned long long)addr, (unsigned long long)size);
90 }
91}
92
Simon Glass44d3a302013-05-08 08:06:00 +000093/**
Simon Goldschmidte2237a22019-01-14 22:38:17 +010094 * boot_fdt_add_mem_rsv_regions - Mark the memreserve and reserved-memory
95 * sections as unusable
Simon Glass44d3a302013-05-08 08:06:00 +000096 * @lmb: pointer to lmb handle, will be used for memory mgmt
97 * @fdt_blob: pointer to fdt blob base address
98 *
Simon Goldschmidte2237a22019-01-14 22:38:17 +010099 * Adds the and reserved-memorymemreserve regions in the dtb to the lmb block.
100 * Adding the memreserve regions prevents u-boot from using them to store the
101 * initrd or the fdt blob.
Simon Glass44d3a302013-05-08 08:06:00 +0000102 */
103void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob)
104{
105 uint64_t addr, size;
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100106 int i, total, ret;
107 int nodeoffset, subnode;
108 struct fdt_resource res;
Simon Glass44d3a302013-05-08 08:06:00 +0000109
110 if (fdt_check_header(fdt_blob) != 0)
111 return;
112
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100113 /* process memreserve sections */
Simon Glass44d3a302013-05-08 08:06:00 +0000114 total = fdt_num_mem_rsv(fdt_blob);
115 for (i = 0; i < total; i++) {
116 if (fdt_get_mem_rsv(fdt_blob, i, &addr, &size) != 0)
117 continue;
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100118 boot_fdt_reserve_region(lmb, addr, size);
119 }
120
121 /* process reserved-memory */
122 nodeoffset = fdt_subnode_offset(fdt_blob, 0, "reserved-memory");
123 if (nodeoffset >= 0) {
124 subnode = fdt_first_subnode(fdt_blob, nodeoffset);
125 while (subnode >= 0) {
126 /* check if this subnode has a reg property */
127 ret = fdt_get_resource(fdt_blob, subnode, "reg", 0,
128 &res);
Thirupathaiah Annapureddy28b417c2020-01-06 22:21:42 -0800129 if (!ret && fdtdec_get_is_enabled(fdt_blob, subnode)) {
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100130 addr = res.start;
131 size = res.end - res.start + 1;
132 boot_fdt_reserve_region(lmb, addr, size);
133 }
134
135 subnode = fdt_next_subnode(fdt_blob, subnode);
136 }
Simon Glass44d3a302013-05-08 08:06:00 +0000137 }
138}
139
140/**
141 * boot_relocate_fdt - relocate flat device tree
142 * @lmb: pointer to lmb handle, will be used for memory mgmt
143 * @of_flat_tree: pointer to a char* variable, will hold fdt start address
144 * @of_size: pointer to a ulong variable, will hold fdt length
145 *
146 * boot_relocate_fdt() allocates a region of memory within the bootmap and
147 * relocates the of_flat_tree into that region, even if the fdt is already in
148 * the bootmap. It also expands the size of the fdt by CONFIG_SYS_FDT_PAD
149 * bytes.
150 *
151 * of_flat_tree and of_size are set to final (after relocation) values
152 *
153 * returns:
154 * 0 - success
155 * 1 - failure
156 */
157int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size)
158{
159 void *fdt_blob = *of_flat_tree;
160 void *of_start = NULL;
161 char *fdt_high;
162 ulong of_len = 0;
163 int err;
164 int disable_relocation = 0;
165
166 /* nothing to do */
167 if (*of_size == 0)
168 return 0;
169
170 if (fdt_check_header(fdt_blob) != 0) {
171 fdt_error("image is not a fdt");
172 goto error;
173 }
174
175 /* position on a 4K boundary before the alloc_current */
176 /* Pad the FDT by a specified amount */
177 of_len = *of_size + CONFIG_SYS_FDT_PAD;
178
179 /* If fdt_high is set use it to select the relocation address */
Simon Glass00caae62017-08-03 12:22:12 -0600180 fdt_high = env_get("fdt_high");
Simon Glass44d3a302013-05-08 08:06:00 +0000181 if (fdt_high) {
182 void *desired_addr = (void *)simple_strtoul(fdt_high, NULL, 16);
183
184 if (((ulong) desired_addr) == ~0UL) {
185 /* All ones means use fdt in place */
186 of_start = fdt_blob;
187 lmb_reserve(lmb, (ulong)of_start, of_len);
188 disable_relocation = 1;
189 } else if (desired_addr) {
190 of_start =
191 (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000,
192 (ulong)desired_addr);
193 if (of_start == NULL) {
194 puts("Failed using fdt_high value for Device Tree");
195 goto error;
196 }
197 } else {
198 of_start =
199 (void *)(ulong) lmb_alloc(lmb, of_len, 0x1000);
200 }
201 } else {
202 of_start =
203 (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000,
Simon Glass723806c2017-08-03 12:22:15 -0600204 env_get_bootm_mapsize()
205 + env_get_bootm_low());
Simon Glass44d3a302013-05-08 08:06:00 +0000206 }
207
208 if (of_start == NULL) {
209 puts("device tree - allocation error\n");
210 goto error;
211 }
212
213 if (disable_relocation) {
214 /*
215 * We assume there is space after the existing fdt to use
216 * for padding
217 */
218 fdt_set_totalsize(of_start, of_len);
219 printf(" Using Device Tree in place at %p, end %p\n",
220 of_start, of_start + of_len - 1);
221 } else {
222 debug("## device tree at %p ... %p (len=%ld [0x%lX])\n",
223 fdt_blob, fdt_blob + *of_size - 1, of_len, of_len);
224
225 printf(" Loading Device Tree to %p, end %p ... ",
226 of_start, of_start + of_len - 1);
227
228 err = fdt_open_into(fdt_blob, of_start, of_len);
229 if (err != 0) {
230 fdt_error("fdt move failed");
231 goto error;
232 }
233 puts("OK\n");
234 }
235
236 *of_flat_tree = of_start;
237 *of_size = of_len;
238
Simon Goldschmidt596be5f2018-12-17 20:14:42 +0100239 if (CONFIG_IS_ENABLED(CMD_FDT))
240 set_working_fdt_addr(map_to_sysmem(*of_flat_tree));
Simon Glass44d3a302013-05-08 08:06:00 +0000241 return 0;
242
243error:
244 return 1;
245}
246
Simon Glass44d3a302013-05-08 08:06:00 +0000247/**
248 * boot_get_fdt - main fdt handling routine
249 * @argc: command argument count
250 * @argv: command argument list
Simon Glass53f375f2013-05-16 13:53:23 +0000251 * @arch: architecture (IH_ARCH_...)
Simon Glass44d3a302013-05-08 08:06:00 +0000252 * @images: pointer to the bootm images structure
253 * @of_flat_tree: pointer to a char* variable, will hold fdt start address
254 * @of_size: pointer to a ulong variable, will hold fdt length
255 *
256 * boot_get_fdt() is responsible for finding a valid flat device tree image.
257 * Curently supported are the following ramdisk sources:
258 * - multicomponent kernel/ramdisk image,
259 * - commandline provided address of decicated ramdisk image.
260 *
261 * returns:
262 * 0, if fdt image was found and valid, or skipped
263 * of_flat_tree and of_size are set to fdt start address and length if
264 * fdt image is found and valid
265 *
266 * 1, if fdt image is found but corrupted
267 * of_flat_tree and of_size are set to 0 if no fdt exists
268 */
Simon Glass09140112020-05-10 11:40:03 -0600269int boot_get_fdt(int flag, int argc, char *const argv[], uint8_t arch,
270 bootm_headers_t *images, char **of_flat_tree, ulong *of_size)
Simon Glass44d3a302013-05-08 08:06:00 +0000271{
Tom Rinic76c93a2019-05-23 07:14:07 -0400272#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
Simon Glass44d3a302013-05-08 08:06:00 +0000273 const image_header_t *fdt_hdr;
Heiko Schocher21d29f72014-05-28 11:33:33 +0200274 ulong load, load_end;
275 ulong image_start, image_data, image_end;
276#endif
Shawn Guo6a7b4062019-01-15 22:26:37 +0800277 ulong img_addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000278 ulong fdt_addr;
279 char *fdt_blob = NULL;
Simon Glass44d3a302013-05-08 08:06:00 +0000280 void *buf;
Simon Glass73223f02016-02-22 22:55:43 -0700281#if CONFIG_IS_ENABLED(FIT)
Simon Glassf320a4d2013-07-10 23:08:10 -0700282 const char *fit_uname_config = images->fit_uname_cfg;
Simon Glass44d3a302013-05-08 08:06:00 +0000283 const char *fit_uname_fdt = NULL;
284 ulong default_addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000285 int fdt_noffset;
Simon Glass44d3a302013-05-08 08:06:00 +0000286#endif
Simon Glass983c72f2013-06-11 11:14:46 -0700287 const char *select = NULL;
Simon Glass44d3a302013-05-08 08:06:00 +0000288
289 *of_flat_tree = NULL;
290 *of_size = 0;
291
Simon Glassbb872dd2019-12-28 10:45:02 -0700292 img_addr = (argc == 0) ? image_load_addr :
293 simple_strtoul(argv[0], NULL, 16);
Shawn Guo6a7b4062019-01-15 22:26:37 +0800294 buf = map_sysmem(img_addr, 0);
295
Simon Glass983c72f2013-06-11 11:14:46 -0700296 if (argc > 2)
297 select = argv[2];
298 if (select || genimg_has_config(images)) {
Simon Glass73223f02016-02-22 22:55:43 -0700299#if CONFIG_IS_ENABLED(FIT)
Simon Glass983c72f2013-06-11 11:14:46 -0700300 if (select) {
Simon Glass44d3a302013-05-08 08:06:00 +0000301 /*
302 * If the FDT blob comes from the FIT image and the
303 * FIT image address is omitted in the command line
304 * argument, try to use ramdisk or os FIT image
305 * address or default load address.
306 */
307 if (images->fit_uname_rd)
308 default_addr = (ulong)images->fit_hdr_rd;
309 else if (images->fit_uname_os)
310 default_addr = (ulong)images->fit_hdr_os;
311 else
Simon Glassbb872dd2019-12-28 10:45:02 -0700312 default_addr = image_load_addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000313
Simon Glass983c72f2013-06-11 11:14:46 -0700314 if (fit_parse_conf(select, default_addr,
Simon Glass44d3a302013-05-08 08:06:00 +0000315 &fdt_addr, &fit_uname_config)) {
316 debug("* fdt: config '%s' from image at 0x%08lx\n",
317 fit_uname_config, fdt_addr);
Simon Glass983c72f2013-06-11 11:14:46 -0700318 } else if (fit_parse_subimage(select, default_addr,
Simon Glass44d3a302013-05-08 08:06:00 +0000319 &fdt_addr, &fit_uname_fdt)) {
320 debug("* fdt: subimage '%s' from image at 0x%08lx\n",
321 fit_uname_fdt, fdt_addr);
322 } else
323#endif
324 {
Simon Glass983c72f2013-06-11 11:14:46 -0700325 fdt_addr = simple_strtoul(select, NULL, 16);
Simon Glass44d3a302013-05-08 08:06:00 +0000326 debug("* fdt: cmdline image address = 0x%08lx\n",
327 fdt_addr);
328 }
Simon Glass73223f02016-02-22 22:55:43 -0700329#if CONFIG_IS_ENABLED(FIT)
Simon Glass44d3a302013-05-08 08:06:00 +0000330 } else {
331 /* use FIT configuration provided in first bootm
332 * command argument
333 */
334 fdt_addr = map_to_sysmem(images->fit_hdr_os);
Simon Glass53f375f2013-05-16 13:53:23 +0000335 fdt_noffset = fit_get_node_from_config(images,
336 FIT_FDT_PROP,
337 fdt_addr);
Paul Burtonbd86ef12016-09-20 18:17:12 +0100338 if (fdt_noffset == -ENOENT)
Simon Glass44d3a302013-05-08 08:06:00 +0000339 return 0;
Simon Glass53f375f2013-05-16 13:53:23 +0000340 else if (fdt_noffset < 0)
341 return 1;
Simon Glass44d3a302013-05-08 08:06:00 +0000342 }
343#endif
Simon Glass44d3a302013-05-08 08:06:00 +0000344 debug("## Checking for 'FDT'/'FDT Image' at %08lx\n",
345 fdt_addr);
346
Simon Glass44d3a302013-05-08 08:06:00 +0000347 /*
348 * Check if there is an FDT image at the
349 * address provided in the second bootm argument
350 * check image type, for FIT images get a FIT node.
351 */
352 buf = map_sysmem(fdt_addr, 0);
353 switch (genimg_get_format(buf)) {
Tom Rinic76c93a2019-05-23 07:14:07 -0400354#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
Simon Glass44d3a302013-05-08 08:06:00 +0000355 case IMAGE_FORMAT_LEGACY:
356 /* verify fdt_addr points to a valid image header */
357 printf("## Flattened Device Tree from Legacy Image at %08lx\n",
358 fdt_addr);
359 fdt_hdr = image_get_fdt(fdt_addr);
360 if (!fdt_hdr)
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800361 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000362
363 /*
364 * move image data to the load address,
365 * make sure we don't overwrite initial image
366 */
367 image_start = (ulong)fdt_hdr;
368 image_data = (ulong)image_get_data(fdt_hdr);
369 image_end = image_get_image_end(fdt_hdr);
370
Simon Glass53f375f2013-05-16 13:53:23 +0000371 load = image_get_load(fdt_hdr);
372 load_end = load + image_get_data_size(fdt_hdr);
Simon Glass44d3a302013-05-08 08:06:00 +0000373
Simon Glass53f375f2013-05-16 13:53:23 +0000374 if (load == image_start ||
375 load == image_data) {
Peng Fan2ea47be2015-11-24 16:54:22 +0800376 fdt_addr = load;
Simon Glass44d3a302013-05-08 08:06:00 +0000377 break;
378 }
379
Simon Glass53f375f2013-05-16 13:53:23 +0000380 if ((load < image_end) && (load_end > image_start)) {
Simon Glass44d3a302013-05-08 08:06:00 +0000381 fdt_error("fdt overwritten");
382 goto error;
383 }
384
385 debug(" Loading FDT from 0x%08lx to 0x%08lx\n",
Simon Glass53f375f2013-05-16 13:53:23 +0000386 image_data, load);
Simon Glass44d3a302013-05-08 08:06:00 +0000387
Simon Glass53f375f2013-05-16 13:53:23 +0000388 memmove((void *)load,
Simon Glass44d3a302013-05-08 08:06:00 +0000389 (void *)image_data,
390 image_get_data_size(fdt_hdr));
391
Simon Glass53f375f2013-05-16 13:53:23 +0000392 fdt_addr = load;
Simon Glass44d3a302013-05-08 08:06:00 +0000393 break;
Heiko Schocher21d29f72014-05-28 11:33:33 +0200394#endif
Simon Glass44d3a302013-05-08 08:06:00 +0000395 case IMAGE_FORMAT_FIT:
396 /*
397 * This case will catch both: new uImage format
398 * (libfdt based) and raw FDT blob (also libfdt
399 * based).
400 */
Simon Glass73223f02016-02-22 22:55:43 -0700401#if CONFIG_IS_ENABLED(FIT)
Simon Glass44d3a302013-05-08 08:06:00 +0000402 /* check FDT blob vs FIT blob */
Simon Glassc5819702021-02-15 17:08:09 -0700403 if (!fit_check_format(buf, IMAGE_SIZE_INVAL)) {
Simon Glass53f375f2013-05-16 13:53:23 +0000404 ulong load, len;
Simon Glass44d3a302013-05-08 08:06:00 +0000405
Pantelis Antoniou169043d2017-09-04 23:12:16 +0300406 fdt_noffset = boot_get_fdt_fit(images,
Simon Glass53f375f2013-05-16 13:53:23 +0000407 fdt_addr, &fit_uname_fdt,
Simon Glassf320a4d2013-07-10 23:08:10 -0700408 &fit_uname_config,
Pantelis Antoniou169043d2017-09-04 23:12:16 +0300409 arch, &load, &len);
Simon Glass44d3a302013-05-08 08:06:00 +0000410
Hongwei Zhang9883df12020-12-02 14:47:03 -0500411 if (fdt_noffset < 0)
412 goto error;
413
Simon Glass53f375f2013-05-16 13:53:23 +0000414 images->fit_hdr_fdt = map_sysmem(fdt_addr, 0);
Simon Glass44d3a302013-05-08 08:06:00 +0000415 images->fit_uname_fdt = fit_uname_fdt;
416 images->fit_noffset_fdt = fdt_noffset;
Simon Glass53f375f2013-05-16 13:53:23 +0000417 fdt_addr = load;
Pantelis Antoniou169043d2017-09-04 23:12:16 +0300418
Simon Glass44d3a302013-05-08 08:06:00 +0000419 break;
420 } else
421#endif
422 {
423 /*
424 * FDT blob
425 */
Simon Glass44d3a302013-05-08 08:06:00 +0000426 debug("* fdt: raw FDT blob\n");
427 printf("## Flattened Device Tree blob at %08lx\n",
428 (long)fdt_addr);
429 }
430 break;
431 default:
432 puts("ERROR: Did not find a cmdline Flattened Device Tree\n");
Tero Kristo19c68082020-06-12 15:41:19 +0300433 goto error;
Simon Glass44d3a302013-05-08 08:06:00 +0000434 }
435
Simon Glass53f375f2013-05-16 13:53:23 +0000436 printf(" Booting using the fdt blob at %#08lx\n", fdt_addr);
437 fdt_blob = map_sysmem(fdt_addr, 0);
Simon Glass44d3a302013-05-08 08:06:00 +0000438 } else if (images->legacy_hdr_valid &&
439 image_check_type(&images->legacy_hdr_os_copy,
440 IH_TYPE_MULTI)) {
441 ulong fdt_data, fdt_len;
442
443 /*
444 * Now check if we have a legacy multi-component image,
445 * get second entry data start address and len.
446 */
447 printf("## Flattened Device Tree from multi component Image at %08lX\n",
448 (ulong)images->legacy_hdr_os);
449
450 image_multi_getimg(images->legacy_hdr_os, 2, &fdt_data,
451 &fdt_len);
452 if (fdt_len) {
453 fdt_blob = (char *)fdt_data;
454 printf(" Booting using the fdt at 0x%p\n", fdt_blob);
455
456 if (fdt_check_header(fdt_blob) != 0) {
457 fdt_error("image is not a fdt");
458 goto error;
459 }
460
461 if (fdt_totalsize(fdt_blob) != fdt_len) {
462 fdt_error("fdt size != image size");
463 goto error;
464 }
465 } else {
466 debug("## No Flattened Device Tree\n");
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800467 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000468 }
Shawn Guo6a7b4062019-01-15 22:26:37 +0800469#ifdef CONFIG_ANDROID_BOOT_IMAGE
470 } else if (genimg_get_format(buf) == IMAGE_FORMAT_ANDROID) {
471 struct andr_img_hdr *hdr = buf;
chenshuo6e314582020-07-20 08:48:15 +0800472 ulong fdt_data, fdt_len;
473 u32 fdt_size, dtb_idx;
474 /*
475 * Firstly check if this android boot image has dtb field.
476 */
477 dtb_idx = (u32)env_get_ulong("adtb_idx", 10, 0);
478 if (android_image_get_dtb_by_index((ulong)hdr, dtb_idx, &fdt_addr, &fdt_size)) {
479 fdt_blob = (char *)map_sysmem(fdt_addr, 0);
480 if (fdt_check_header(fdt_blob))
481 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800482
chenshuo6e314582020-07-20 08:48:15 +0800483 debug("## Using FDT in Android image dtb area with idx %u\n", dtb_idx);
484 } else if (!android_image_get_second(hdr, &fdt_data, &fdt_len) &&
485 !fdt_check_header((char *)fdt_data)) {
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200486 fdt_blob = (char *)fdt_data;
487 if (fdt_totalsize(fdt_blob) != fdt_len)
488 goto error;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800489
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200490 debug("## Using FDT in Android image second area\n");
491 } else {
Eugeniu Rosca62392672019-04-01 12:52:52 +0200492 fdt_addr = env_get_hex("fdtaddr", 0);
493 if (!fdt_addr)
494 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800495
Eugeniu Rosca62392672019-04-01 12:52:52 +0200496 fdt_blob = map_sysmem(fdt_addr, 0);
497 if (fdt_check_header(fdt_blob))
498 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800499
Eugeniu Rosca62392672019-04-01 12:52:52 +0200500 debug("## Using FDT at ${fdtaddr}=Ox%lx\n", fdt_addr);
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200501 }
Shawn Guo6a7b4062019-01-15 22:26:37 +0800502#endif
Simon Glass44d3a302013-05-08 08:06:00 +0000503 } else {
504 debug("## No Flattened Device Tree\n");
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800505 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000506 }
507
508 *of_flat_tree = fdt_blob;
509 *of_size = fdt_totalsize(fdt_blob);
510 debug(" of_flat_tree at 0x%08lx size 0x%08lx\n",
511 (ulong)*of_flat_tree, *of_size);
512
513 return 0;
514
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800515no_fdt:
Eugeniu Rosca80281822019-04-01 12:45:35 +0200516 debug("Continuing to boot without FDT\n");
517 return 0;
Simon Glass44d3a302013-05-08 08:06:00 +0000518error:
Simon Glass44d3a302013-05-08 08:06:00 +0000519 return 1;
520}
Simon Glass13d06982013-05-08 08:06:01 +0000521
522/*
523 * Verify the device tree.
524 *
525 * This function is called after all device tree fix-ups have been enacted,
526 * so that the final device tree can be verified. The definition of "verified"
527 * is up to the specific implementation. However, it generally means that the
528 * addresses of some of the devices in the device tree are compared with the
529 * actual addresses at which U-Boot has placed them.
530 *
Bin Menga1875592016-02-05 19:30:11 -0800531 * Returns 1 on success, 0 on failure. If 0 is returned, U-Boot will halt the
Simon Glass13d06982013-05-08 08:06:01 +0000532 * boot process.
533 */
534__weak int ft_verify_fdt(void *fdt)
535{
536 return 1;
537}
538
Alexey Brodkin42803422018-01-24 20:47:09 +0300539__weak int arch_fixup_fdt(void *blob)
540{
541 return 0;
542}
543
Simon Glass13d06982013-05-08 08:06:01 +0000544int image_setup_libfdt(bootm_headers_t *images, void *blob,
545 int of_size, struct lmb *lmb)
546{
547 ulong *initrd_start = &images->initrd_start;
548 ulong *initrd_end = &images->initrd_end;
Simon Glass6f4dbc22014-10-23 18:58:53 -0600549 int ret = -EPERM;
550 int fdt_ret;
Simon Glass13d06982013-05-08 08:06:01 +0000551
Paul Kocialkowski10be5b52015-05-21 11:27:03 +0200552 if (fdt_root(blob) < 0) {
553 printf("ERROR: root node setup failed\n");
554 goto err;
555 }
Masahiro Yamadabc6ed0f2014-04-18 17:41:00 +0900556 if (fdt_chosen(blob) < 0) {
Simon Glass6f4dbc22014-10-23 18:58:53 -0600557 printf("ERROR: /chosen node create failed\n");
558 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000559 }
Ma Haijune29607e2014-07-12 14:24:06 +0100560 if (arch_fixup_fdt(blob) < 0) {
Simon Glass6f4dbc22014-10-23 18:58:53 -0600561 printf("ERROR: arch-specific fdt fixup failed\n");
562 goto err;
Ma Haijune29607e2014-07-12 14:24:06 +0100563 }
Etienne Carriere5f9070a2020-06-05 09:22:54 +0200564
Patrick Delaunaya2535242021-02-08 13:54:31 +0100565 fdt_ret = optee_copy_fdt_nodes(blob);
Etienne Carriere5f9070a2020-06-05 09:22:54 +0200566 if (fdt_ret) {
567 printf("ERROR: transfer of optee nodes to new fdt failed: %s\n",
568 fdt_strerror(fdt_ret));
569 goto err;
570 }
571
Tom Rini26d61192017-04-28 08:51:44 -0400572 /* Update ethernet nodes */
573 fdt_fixup_ethernet(blob);
Frédéric Danis9ea0a1e2020-03-20 10:59:24 +0100574#if CONFIG_IS_ENABLED(CMD_PSTORE)
575 /* Append PStore configuration */
576 fdt_fixup_pstore(blob);
577#endif
Simon Glass6f4dbc22014-10-23 18:58:53 -0600578 if (IMAGE_OF_BOARD_SETUP) {
Wasim Khan402558b2021-02-04 15:44:04 +0100579 const char *skip_board_fixup;
580
581 skip_board_fixup = env_get("skip_board_fixup");
582 if (skip_board_fixup && ((int)simple_strtol(skip_board_fixup, NULL, 10) == 1)) {
583 printf("skip board fdt fixup\n");
584 } else {
585 fdt_ret = ft_board_setup(blob, gd->bd);
586 if (fdt_ret) {
587 printf("ERROR: board-specific fdt fixup failed: %s\n",
588 fdt_strerror(fdt_ret));
589 goto err;
590 }
Simon Glass6f4dbc22014-10-23 18:58:53 -0600591 }
592 }
Simon Glassc654b512014-10-23 18:58:54 -0600593 if (IMAGE_OF_SYSTEM_SETUP) {
Max Krummenacherd89212b2015-08-05 17:17:03 +0200594 fdt_ret = ft_system_setup(blob, gd->bd);
595 if (fdt_ret) {
Simon Glassc654b512014-10-23 18:58:54 -0600596 printf("ERROR: system-specific fdt fixup failed: %s\n",
597 fdt_strerror(fdt_ret));
598 goto err;
599 }
600 }
Simon Glass13d06982013-05-08 08:06:01 +0000601
602 /* Delete the old LMB reservation */
Alexander Grafdea21742016-03-04 01:10:13 +0100603 if (lmb)
604 lmb_free(lmb, (phys_addr_t)(u32)(uintptr_t)blob,
605 (phys_size_t)fdt_totalsize(blob));
Simon Glass13d06982013-05-08 08:06:01 +0000606
Hannes Schmelzeref476832016-09-20 18:10:43 +0200607 ret = fdt_shrink_to_minimum(blob, 0);
Simon Glass13d06982013-05-08 08:06:01 +0000608 if (ret < 0)
Simon Glass6f4dbc22014-10-23 18:58:53 -0600609 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000610 of_size = ret;
611
612 if (*initrd_start && *initrd_end) {
613 of_size += FDT_RAMDISK_OVERHEAD;
614 fdt_set_totalsize(blob, of_size);
615 }
616 /* Create a new LMB reservation */
Alexander Grafdea21742016-03-04 01:10:13 +0100617 if (lmb)
618 lmb_reserve(lmb, (ulong)blob, of_size);
Simon Glass13d06982013-05-08 08:06:01 +0000619
Masahiro Yamadadbe963a2014-04-18 17:40:59 +0900620 fdt_initrd(blob, *initrd_start, *initrd_end);
Simon Glass13d06982013-05-08 08:06:01 +0000621 if (!ft_verify_fdt(blob))
Simon Glass6f4dbc22014-10-23 18:58:53 -0600622 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000623
Khoronzhuk, Ivan7c387642014-07-16 00:59:25 +0300624#if defined(CONFIG_SOC_KEYSTONE)
Vitaly Andrianov00c200f2014-04-04 13:16:47 -0400625 if (IMAGE_OF_BOARD_SETUP)
626 ft_board_setup_ex(blob, gd->bd);
627#endif
628
Simon Glass13d06982013-05-08 08:06:01 +0000629 return 0;
Simon Glass6f4dbc22014-10-23 18:58:53 -0600630err:
631 printf(" - must RESET the board to recover.\n\n");
632
633 return ret;
Simon Glass13d06982013-05-08 08:06:01 +0000634}