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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>
Masahiro Yamadab08c8c42018-03-05 01:20:11 +090020#include <linux/libfdt.h>
Joe Hershberger0eb25b62015-03-22 17:08:59 -050021#include <mapmem.h>
Simon Glass44d3a302013-05-08 08:06:00 +000022#include <asm/io.h>
Heiko Stuebner6ccb05e2019-10-23 16:46:40 +020023#include <tee/optee.h>
Simon Glass44d3a302013-05-08 08:06:00 +000024
25#ifndef CONFIG_SYS_FDT_PAD
26#define CONFIG_SYS_FDT_PAD 0x3000
27#endif
28
Masahiro Yamadac960a682018-03-21 18:03:33 +090029/* adding a ramdisk needs 0x44 bytes in version 2008.10 */
30#define FDT_RAMDISK_OVERHEAD 0x80
31
Simon Glass44d3a302013-05-08 08:06:00 +000032DECLARE_GLOBAL_DATA_PTR;
33
34static void fdt_error(const char *msg)
35{
36 puts("ERROR: ");
37 puts(msg);
38 puts(" - must RESET the board to recover.\n");
39}
40
Tom Rinic76c93a2019-05-23 07:14:07 -040041#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
Simon Glass44d3a302013-05-08 08:06:00 +000042static const image_header_t *image_get_fdt(ulong fdt_addr)
43{
44 const image_header_t *fdt_hdr = map_sysmem(fdt_addr, 0);
45
46 image_print_contents(fdt_hdr);
47
48 puts(" Verifying Checksum ... ");
49 if (!image_check_hcrc(fdt_hdr)) {
50 fdt_error("fdt header checksum invalid");
51 return NULL;
52 }
53
54 if (!image_check_dcrc(fdt_hdr)) {
55 fdt_error("fdt checksum invalid");
56 return NULL;
57 }
58 puts("OK\n");
59
60 if (!image_check_type(fdt_hdr, IH_TYPE_FLATDT)) {
61 fdt_error("uImage is not a fdt");
62 return NULL;
63 }
64 if (image_get_comp(fdt_hdr) != IH_COMP_NONE) {
65 fdt_error("uImage is compressed");
66 return NULL;
67 }
Masahiro Yamada2f0877c2013-09-19 12:10:18 +090068 if (fdt_check_header((void *)image_get_data(fdt_hdr)) != 0) {
Simon Glass44d3a302013-05-08 08:06:00 +000069 fdt_error("uImage data is not a fdt");
70 return NULL;
71 }
72 return fdt_hdr;
73}
Heiko Schocher21d29f72014-05-28 11:33:33 +020074#endif
Simon Glass44d3a302013-05-08 08:06:00 +000075
Simon Goldschmidte2237a22019-01-14 22:38:17 +010076static void boot_fdt_reserve_region(struct lmb *lmb, uint64_t addr,
77 uint64_t size)
78{
Patrick Delaunaye1d7ed32019-03-06 14:23:52 +010079 long ret;
Simon Goldschmidte2237a22019-01-14 22:38:17 +010080
81 ret = lmb_reserve(lmb, addr, size);
Patrick Delaunaye1d7ed32019-03-06 14:23:52 +010082 if (ret >= 0) {
Simon Goldschmidte2237a22019-01-14 22:38:17 +010083 debug(" reserving fdt memory region: addr=%llx size=%llx\n",
84 (unsigned long long)addr, (unsigned long long)size);
85 } else {
86 puts("ERROR: reserving fdt memory region failed ");
87 printf("(addr=%llx size=%llx)\n",
88 (unsigned long long)addr, (unsigned long long)size);
89 }
90}
91
Simon Glass44d3a302013-05-08 08:06:00 +000092/**
Simon Goldschmidte2237a22019-01-14 22:38:17 +010093 * boot_fdt_add_mem_rsv_regions - Mark the memreserve and reserved-memory
94 * sections as unusable
Simon Glass44d3a302013-05-08 08:06:00 +000095 * @lmb: pointer to lmb handle, will be used for memory mgmt
96 * @fdt_blob: pointer to fdt blob base address
97 *
Simon Goldschmidte2237a22019-01-14 22:38:17 +010098 * Adds the and reserved-memorymemreserve regions in the dtb to the lmb block.
99 * Adding the memreserve regions prevents u-boot from using them to store the
100 * initrd or the fdt blob.
Simon Glass44d3a302013-05-08 08:06:00 +0000101 */
102void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob)
103{
104 uint64_t addr, size;
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100105 int i, total, ret;
106 int nodeoffset, subnode;
107 struct fdt_resource res;
Simon Glass44d3a302013-05-08 08:06:00 +0000108
109 if (fdt_check_header(fdt_blob) != 0)
110 return;
111
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100112 /* process memreserve sections */
Simon Glass44d3a302013-05-08 08:06:00 +0000113 total = fdt_num_mem_rsv(fdt_blob);
114 for (i = 0; i < total; i++) {
115 if (fdt_get_mem_rsv(fdt_blob, i, &addr, &size) != 0)
116 continue;
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100117 boot_fdt_reserve_region(lmb, addr, size);
118 }
119
120 /* process reserved-memory */
121 nodeoffset = fdt_subnode_offset(fdt_blob, 0, "reserved-memory");
122 if (nodeoffset >= 0) {
123 subnode = fdt_first_subnode(fdt_blob, nodeoffset);
124 while (subnode >= 0) {
125 /* check if this subnode has a reg property */
126 ret = fdt_get_resource(fdt_blob, subnode, "reg", 0,
127 &res);
Thirupathaiah Annapureddy28b417c2020-01-06 22:21:42 -0800128 if (!ret && fdtdec_get_is_enabled(fdt_blob, subnode)) {
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100129 addr = res.start;
130 size = res.end - res.start + 1;
131 boot_fdt_reserve_region(lmb, addr, size);
132 }
133
134 subnode = fdt_next_subnode(fdt_blob, subnode);
135 }
Simon Glass44d3a302013-05-08 08:06:00 +0000136 }
137}
138
139/**
140 * boot_relocate_fdt - relocate flat device tree
141 * @lmb: pointer to lmb handle, will be used for memory mgmt
142 * @of_flat_tree: pointer to a char* variable, will hold fdt start address
143 * @of_size: pointer to a ulong variable, will hold fdt length
144 *
145 * boot_relocate_fdt() allocates a region of memory within the bootmap and
146 * relocates the of_flat_tree into that region, even if the fdt is already in
147 * the bootmap. It also expands the size of the fdt by CONFIG_SYS_FDT_PAD
148 * bytes.
149 *
150 * of_flat_tree and of_size are set to final (after relocation) values
151 *
152 * returns:
153 * 0 - success
154 * 1 - failure
155 */
156int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size)
157{
158 void *fdt_blob = *of_flat_tree;
159 void *of_start = NULL;
160 char *fdt_high;
161 ulong of_len = 0;
162 int err;
163 int disable_relocation = 0;
164
165 /* nothing to do */
166 if (*of_size == 0)
167 return 0;
168
169 if (fdt_check_header(fdt_blob) != 0) {
170 fdt_error("image is not a fdt");
171 goto error;
172 }
173
174 /* position on a 4K boundary before the alloc_current */
175 /* Pad the FDT by a specified amount */
176 of_len = *of_size + CONFIG_SYS_FDT_PAD;
177
178 /* If fdt_high is set use it to select the relocation address */
Simon Glass00caae62017-08-03 12:22:12 -0600179 fdt_high = env_get("fdt_high");
Simon Glass44d3a302013-05-08 08:06:00 +0000180 if (fdt_high) {
181 void *desired_addr = (void *)simple_strtoul(fdt_high, NULL, 16);
182
183 if (((ulong) desired_addr) == ~0UL) {
184 /* All ones means use fdt in place */
185 of_start = fdt_blob;
186 lmb_reserve(lmb, (ulong)of_start, of_len);
187 disable_relocation = 1;
188 } else if (desired_addr) {
189 of_start =
190 (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000,
191 (ulong)desired_addr);
192 if (of_start == NULL) {
193 puts("Failed using fdt_high value for Device Tree");
194 goto error;
195 }
196 } else {
197 of_start =
198 (void *)(ulong) lmb_alloc(lmb, of_len, 0x1000);
199 }
200 } else {
201 of_start =
202 (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000,
Simon Glass723806c2017-08-03 12:22:15 -0600203 env_get_bootm_mapsize()
204 + env_get_bootm_low());
Simon Glass44d3a302013-05-08 08:06:00 +0000205 }
206
207 if (of_start == NULL) {
208 puts("device tree - allocation error\n");
209 goto error;
210 }
211
212 if (disable_relocation) {
213 /*
214 * We assume there is space after the existing fdt to use
215 * for padding
216 */
217 fdt_set_totalsize(of_start, of_len);
218 printf(" Using Device Tree in place at %p, end %p\n",
219 of_start, of_start + of_len - 1);
220 } else {
221 debug("## device tree at %p ... %p (len=%ld [0x%lX])\n",
222 fdt_blob, fdt_blob + *of_size - 1, of_len, of_len);
223
224 printf(" Loading Device Tree to %p, end %p ... ",
225 of_start, of_start + of_len - 1);
226
227 err = fdt_open_into(fdt_blob, of_start, of_len);
228 if (err != 0) {
229 fdt_error("fdt move failed");
230 goto error;
231 }
232 puts("OK\n");
233 }
234
235 *of_flat_tree = of_start;
236 *of_size = of_len;
237
Simon Goldschmidt596be5f2018-12-17 20:14:42 +0100238 if (CONFIG_IS_ENABLED(CMD_FDT))
239 set_working_fdt_addr(map_to_sysmem(*of_flat_tree));
Simon Glass44d3a302013-05-08 08:06:00 +0000240 return 0;
241
242error:
243 return 1;
244}
245
Simon Glass44d3a302013-05-08 08:06:00 +0000246/**
247 * boot_get_fdt - main fdt handling routine
248 * @argc: command argument count
249 * @argv: command argument list
Simon Glass53f375f2013-05-16 13:53:23 +0000250 * @arch: architecture (IH_ARCH_...)
Simon Glass44d3a302013-05-08 08:06:00 +0000251 * @images: pointer to the bootm images structure
252 * @of_flat_tree: pointer to a char* variable, will hold fdt start address
253 * @of_size: pointer to a ulong variable, will hold fdt length
254 *
255 * boot_get_fdt() is responsible for finding a valid flat device tree image.
256 * Curently supported are the following ramdisk sources:
257 * - multicomponent kernel/ramdisk image,
258 * - commandline provided address of decicated ramdisk image.
259 *
260 * returns:
261 * 0, if fdt image was found and valid, or skipped
262 * of_flat_tree and of_size are set to fdt start address and length if
263 * fdt image is found and valid
264 *
265 * 1, if fdt image is found but corrupted
266 * of_flat_tree and of_size are set to 0 if no fdt exists
267 */
Simon Glass09140112020-05-10 11:40:03 -0600268int boot_get_fdt(int flag, int argc, char *const argv[], uint8_t arch,
269 bootm_headers_t *images, char **of_flat_tree, ulong *of_size)
Simon Glass44d3a302013-05-08 08:06:00 +0000270{
Tom Rinic76c93a2019-05-23 07:14:07 -0400271#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
Simon Glass44d3a302013-05-08 08:06:00 +0000272 const image_header_t *fdt_hdr;
Heiko Schocher21d29f72014-05-28 11:33:33 +0200273 ulong load, load_end;
274 ulong image_start, image_data, image_end;
275#endif
Shawn Guo6a7b4062019-01-15 22:26:37 +0800276 ulong img_addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000277 ulong fdt_addr;
278 char *fdt_blob = NULL;
Simon Glass44d3a302013-05-08 08:06:00 +0000279 void *buf;
Simon Glass73223f02016-02-22 22:55:43 -0700280#if CONFIG_IS_ENABLED(FIT)
Simon Glassf320a4d2013-07-10 23:08:10 -0700281 const char *fit_uname_config = images->fit_uname_cfg;
Simon Glass44d3a302013-05-08 08:06:00 +0000282 const char *fit_uname_fdt = NULL;
283 ulong default_addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000284 int fdt_noffset;
Simon Glass44d3a302013-05-08 08:06:00 +0000285#endif
Simon Glass983c72f2013-06-11 11:14:46 -0700286 const char *select = NULL;
Simon Glass44d3a302013-05-08 08:06:00 +0000287
288 *of_flat_tree = NULL;
289 *of_size = 0;
290
Simon Glassbb872dd2019-12-28 10:45:02 -0700291 img_addr = (argc == 0) ? image_load_addr :
292 simple_strtoul(argv[0], NULL, 16);
Shawn Guo6a7b4062019-01-15 22:26:37 +0800293 buf = map_sysmem(img_addr, 0);
294
Simon Glass983c72f2013-06-11 11:14:46 -0700295 if (argc > 2)
296 select = argv[2];
297 if (select || genimg_has_config(images)) {
Simon Glass73223f02016-02-22 22:55:43 -0700298#if CONFIG_IS_ENABLED(FIT)
Simon Glass983c72f2013-06-11 11:14:46 -0700299 if (select) {
Simon Glass44d3a302013-05-08 08:06:00 +0000300 /*
301 * If the FDT blob comes from the FIT image and the
302 * FIT image address is omitted in the command line
303 * argument, try to use ramdisk or os FIT image
304 * address or default load address.
305 */
306 if (images->fit_uname_rd)
307 default_addr = (ulong)images->fit_hdr_rd;
308 else if (images->fit_uname_os)
309 default_addr = (ulong)images->fit_hdr_os;
310 else
Simon Glassbb872dd2019-12-28 10:45:02 -0700311 default_addr = image_load_addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000312
Simon Glass983c72f2013-06-11 11:14:46 -0700313 if (fit_parse_conf(select, default_addr,
Simon Glass44d3a302013-05-08 08:06:00 +0000314 &fdt_addr, &fit_uname_config)) {
315 debug("* fdt: config '%s' from image at 0x%08lx\n",
316 fit_uname_config, fdt_addr);
Simon Glass983c72f2013-06-11 11:14:46 -0700317 } else if (fit_parse_subimage(select, default_addr,
Simon Glass44d3a302013-05-08 08:06:00 +0000318 &fdt_addr, &fit_uname_fdt)) {
319 debug("* fdt: subimage '%s' from image at 0x%08lx\n",
320 fit_uname_fdt, fdt_addr);
321 } else
322#endif
323 {
Simon Glass983c72f2013-06-11 11:14:46 -0700324 fdt_addr = simple_strtoul(select, NULL, 16);
Simon Glass44d3a302013-05-08 08:06:00 +0000325 debug("* fdt: cmdline image address = 0x%08lx\n",
326 fdt_addr);
327 }
Simon Glass73223f02016-02-22 22:55:43 -0700328#if CONFIG_IS_ENABLED(FIT)
Simon Glass44d3a302013-05-08 08:06:00 +0000329 } else {
330 /* use FIT configuration provided in first bootm
331 * command argument
332 */
333 fdt_addr = map_to_sysmem(images->fit_hdr_os);
Simon Glass53f375f2013-05-16 13:53:23 +0000334 fdt_noffset = fit_get_node_from_config(images,
335 FIT_FDT_PROP,
336 fdt_addr);
Paul Burtonbd86ef12016-09-20 18:17:12 +0100337 if (fdt_noffset == -ENOENT)
Simon Glass44d3a302013-05-08 08:06:00 +0000338 return 0;
Simon Glass53f375f2013-05-16 13:53:23 +0000339 else if (fdt_noffset < 0)
340 return 1;
Simon Glass44d3a302013-05-08 08:06:00 +0000341 }
342#endif
Simon Glass44d3a302013-05-08 08:06:00 +0000343 debug("## Checking for 'FDT'/'FDT Image' at %08lx\n",
344 fdt_addr);
345
Simon Glass44d3a302013-05-08 08:06:00 +0000346 /*
347 * Check if there is an FDT image at the
348 * address provided in the second bootm argument
349 * check image type, for FIT images get a FIT node.
350 */
351 buf = map_sysmem(fdt_addr, 0);
352 switch (genimg_get_format(buf)) {
Tom Rinic76c93a2019-05-23 07:14:07 -0400353#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
Simon Glass44d3a302013-05-08 08:06:00 +0000354 case IMAGE_FORMAT_LEGACY:
355 /* verify fdt_addr points to a valid image header */
356 printf("## Flattened Device Tree from Legacy Image at %08lx\n",
357 fdt_addr);
358 fdt_hdr = image_get_fdt(fdt_addr);
359 if (!fdt_hdr)
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800360 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000361
362 /*
363 * move image data to the load address,
364 * make sure we don't overwrite initial image
365 */
366 image_start = (ulong)fdt_hdr;
367 image_data = (ulong)image_get_data(fdt_hdr);
368 image_end = image_get_image_end(fdt_hdr);
369
Simon Glass53f375f2013-05-16 13:53:23 +0000370 load = image_get_load(fdt_hdr);
371 load_end = load + image_get_data_size(fdt_hdr);
Simon Glass44d3a302013-05-08 08:06:00 +0000372
Simon Glass53f375f2013-05-16 13:53:23 +0000373 if (load == image_start ||
374 load == image_data) {
Peng Fan2ea47be2015-11-24 16:54:22 +0800375 fdt_addr = load;
Simon Glass44d3a302013-05-08 08:06:00 +0000376 break;
377 }
378
Simon Glass53f375f2013-05-16 13:53:23 +0000379 if ((load < image_end) && (load_end > image_start)) {
Simon Glass44d3a302013-05-08 08:06:00 +0000380 fdt_error("fdt overwritten");
381 goto error;
382 }
383
384 debug(" Loading FDT from 0x%08lx to 0x%08lx\n",
Simon Glass53f375f2013-05-16 13:53:23 +0000385 image_data, load);
Simon Glass44d3a302013-05-08 08:06:00 +0000386
Simon Glass53f375f2013-05-16 13:53:23 +0000387 memmove((void *)load,
Simon Glass44d3a302013-05-08 08:06:00 +0000388 (void *)image_data,
389 image_get_data_size(fdt_hdr));
390
Simon Glass53f375f2013-05-16 13:53:23 +0000391 fdt_addr = load;
Simon Glass44d3a302013-05-08 08:06:00 +0000392 break;
Heiko Schocher21d29f72014-05-28 11:33:33 +0200393#endif
Simon Glass44d3a302013-05-08 08:06:00 +0000394 case IMAGE_FORMAT_FIT:
395 /*
396 * This case will catch both: new uImage format
397 * (libfdt based) and raw FDT blob (also libfdt
398 * based).
399 */
Simon Glass73223f02016-02-22 22:55:43 -0700400#if CONFIG_IS_ENABLED(FIT)
Simon Glass44d3a302013-05-08 08:06:00 +0000401 /* check FDT blob vs FIT blob */
402 if (fit_check_format(buf)) {
Simon Glass53f375f2013-05-16 13:53:23 +0000403 ulong load, len;
Simon Glass44d3a302013-05-08 08:06:00 +0000404
Pantelis Antoniou169043d2017-09-04 23:12:16 +0300405 fdt_noffset = boot_get_fdt_fit(images,
Simon Glass53f375f2013-05-16 13:53:23 +0000406 fdt_addr, &fit_uname_fdt,
Simon Glassf320a4d2013-07-10 23:08:10 -0700407 &fit_uname_config,
Pantelis Antoniou169043d2017-09-04 23:12:16 +0300408 arch, &load, &len);
Simon Glass44d3a302013-05-08 08:06:00 +0000409
Hongwei Zhang9883df12020-12-02 14:47:03 -0500410 if (fdt_noffset < 0)
411 goto error;
412
Simon Glass53f375f2013-05-16 13:53:23 +0000413 images->fit_hdr_fdt = map_sysmem(fdt_addr, 0);
Simon Glass44d3a302013-05-08 08:06:00 +0000414 images->fit_uname_fdt = fit_uname_fdt;
415 images->fit_noffset_fdt = fdt_noffset;
Simon Glass53f375f2013-05-16 13:53:23 +0000416 fdt_addr = load;
Pantelis Antoniou169043d2017-09-04 23:12:16 +0300417
Simon Glass44d3a302013-05-08 08:06:00 +0000418 break;
419 } else
420#endif
421 {
422 /*
423 * FDT blob
424 */
Simon Glass44d3a302013-05-08 08:06:00 +0000425 debug("* fdt: raw FDT blob\n");
426 printf("## Flattened Device Tree blob at %08lx\n",
427 (long)fdt_addr);
428 }
429 break;
430 default:
431 puts("ERROR: Did not find a cmdline Flattened Device Tree\n");
Tero Kristo19c68082020-06-12 15:41:19 +0300432 goto error;
Simon Glass44d3a302013-05-08 08:06:00 +0000433 }
434
Simon Glass53f375f2013-05-16 13:53:23 +0000435 printf(" Booting using the fdt blob at %#08lx\n", fdt_addr);
436 fdt_blob = map_sysmem(fdt_addr, 0);
Simon Glass44d3a302013-05-08 08:06:00 +0000437 } else if (images->legacy_hdr_valid &&
438 image_check_type(&images->legacy_hdr_os_copy,
439 IH_TYPE_MULTI)) {
440 ulong fdt_data, fdt_len;
441
442 /*
443 * Now check if we have a legacy multi-component image,
444 * get second entry data start address and len.
445 */
446 printf("## Flattened Device Tree from multi component Image at %08lX\n",
447 (ulong)images->legacy_hdr_os);
448
449 image_multi_getimg(images->legacy_hdr_os, 2, &fdt_data,
450 &fdt_len);
451 if (fdt_len) {
452 fdt_blob = (char *)fdt_data;
453 printf(" Booting using the fdt at 0x%p\n", fdt_blob);
454
455 if (fdt_check_header(fdt_blob) != 0) {
456 fdt_error("image is not a fdt");
457 goto error;
458 }
459
460 if (fdt_totalsize(fdt_blob) != fdt_len) {
461 fdt_error("fdt size != image size");
462 goto error;
463 }
464 } else {
465 debug("## No Flattened Device Tree\n");
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800466 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000467 }
Shawn Guo6a7b4062019-01-15 22:26:37 +0800468#ifdef CONFIG_ANDROID_BOOT_IMAGE
469 } else if (genimg_get_format(buf) == IMAGE_FORMAT_ANDROID) {
470 struct andr_img_hdr *hdr = buf;
chenshuo6e314582020-07-20 08:48:15 +0800471 ulong fdt_data, fdt_len;
472 u32 fdt_size, dtb_idx;
473 /*
474 * Firstly check if this android boot image has dtb field.
475 */
476 dtb_idx = (u32)env_get_ulong("adtb_idx", 10, 0);
477 if (android_image_get_dtb_by_index((ulong)hdr, dtb_idx, &fdt_addr, &fdt_size)) {
478 fdt_blob = (char *)map_sysmem(fdt_addr, 0);
479 if (fdt_check_header(fdt_blob))
480 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800481
chenshuo6e314582020-07-20 08:48:15 +0800482 debug("## Using FDT in Android image dtb area with idx %u\n", dtb_idx);
483 } else if (!android_image_get_second(hdr, &fdt_data, &fdt_len) &&
484 !fdt_check_header((char *)fdt_data)) {
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200485 fdt_blob = (char *)fdt_data;
486 if (fdt_totalsize(fdt_blob) != fdt_len)
487 goto error;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800488
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200489 debug("## Using FDT in Android image second area\n");
490 } else {
Eugeniu Rosca62392672019-04-01 12:52:52 +0200491 fdt_addr = env_get_hex("fdtaddr", 0);
492 if (!fdt_addr)
493 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800494
Eugeniu Rosca62392672019-04-01 12:52:52 +0200495 fdt_blob = map_sysmem(fdt_addr, 0);
496 if (fdt_check_header(fdt_blob))
497 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800498
Eugeniu Rosca62392672019-04-01 12:52:52 +0200499 debug("## Using FDT at ${fdtaddr}=Ox%lx\n", fdt_addr);
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200500 }
Shawn Guo6a7b4062019-01-15 22:26:37 +0800501#endif
Simon Glass44d3a302013-05-08 08:06:00 +0000502 } else {
503 debug("## No Flattened Device Tree\n");
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800504 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000505 }
506
507 *of_flat_tree = fdt_blob;
508 *of_size = fdt_totalsize(fdt_blob);
509 debug(" of_flat_tree at 0x%08lx size 0x%08lx\n",
510 (ulong)*of_flat_tree, *of_size);
511
512 return 0;
513
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800514no_fdt:
Eugeniu Rosca80281822019-04-01 12:45:35 +0200515 debug("Continuing to boot without FDT\n");
516 return 0;
Simon Glass44d3a302013-05-08 08:06:00 +0000517error:
Simon Glass44d3a302013-05-08 08:06:00 +0000518 return 1;
519}
Simon Glass13d06982013-05-08 08:06:01 +0000520
521/*
522 * Verify the device tree.
523 *
524 * This function is called after all device tree fix-ups have been enacted,
525 * so that the final device tree can be verified. The definition of "verified"
526 * is up to the specific implementation. However, it generally means that the
527 * addresses of some of the devices in the device tree are compared with the
528 * actual addresses at which U-Boot has placed them.
529 *
Bin Menga1875592016-02-05 19:30:11 -0800530 * Returns 1 on success, 0 on failure. If 0 is returned, U-Boot will halt the
Simon Glass13d06982013-05-08 08:06:01 +0000531 * boot process.
532 */
533__weak int ft_verify_fdt(void *fdt)
534{
535 return 1;
536}
537
Alexey Brodkin42803422018-01-24 20:47:09 +0300538__weak int arch_fixup_fdt(void *blob)
539{
540 return 0;
541}
542
Simon Glass13d06982013-05-08 08:06:01 +0000543int image_setup_libfdt(bootm_headers_t *images, void *blob,
544 int of_size, struct lmb *lmb)
545{
546 ulong *initrd_start = &images->initrd_start;
547 ulong *initrd_end = &images->initrd_end;
Simon Glass6f4dbc22014-10-23 18:58:53 -0600548 int ret = -EPERM;
549 int fdt_ret;
Simon Glass13d06982013-05-08 08:06:01 +0000550
Paul Kocialkowski10be5b52015-05-21 11:27:03 +0200551 if (fdt_root(blob) < 0) {
552 printf("ERROR: root node setup failed\n");
553 goto err;
554 }
Masahiro Yamadabc6ed0f2014-04-18 17:41:00 +0900555 if (fdt_chosen(blob) < 0) {
Simon Glass6f4dbc22014-10-23 18:58:53 -0600556 printf("ERROR: /chosen node create failed\n");
557 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000558 }
Ma Haijune29607e2014-07-12 14:24:06 +0100559 if (arch_fixup_fdt(blob) < 0) {
Simon Glass6f4dbc22014-10-23 18:58:53 -0600560 printf("ERROR: arch-specific fdt fixup failed\n");
561 goto err;
Ma Haijune29607e2014-07-12 14:24:06 +0100562 }
Etienne Carriere5f9070a2020-06-05 09:22:54 +0200563
564 fdt_ret = optee_copy_fdt_nodes(gd->fdt_blob, blob);
565 if (fdt_ret) {
566 printf("ERROR: transfer of optee nodes to new fdt failed: %s\n",
567 fdt_strerror(fdt_ret));
568 goto err;
569 }
570
Tom Rini26d61192017-04-28 08:51:44 -0400571 /* Update ethernet nodes */
572 fdt_fixup_ethernet(blob);
Frédéric Danis9ea0a1e2020-03-20 10:59:24 +0100573#if CONFIG_IS_ENABLED(CMD_PSTORE)
574 /* Append PStore configuration */
575 fdt_fixup_pstore(blob);
576#endif
Simon Glass6f4dbc22014-10-23 18:58:53 -0600577 if (IMAGE_OF_BOARD_SETUP) {
578 fdt_ret = ft_board_setup(blob, gd->bd);
579 if (fdt_ret) {
580 printf("ERROR: board-specific fdt fixup failed: %s\n",
581 fdt_strerror(fdt_ret));
582 goto err;
583 }
584 }
Simon Glassc654b512014-10-23 18:58:54 -0600585 if (IMAGE_OF_SYSTEM_SETUP) {
Max Krummenacherd89212b2015-08-05 17:17:03 +0200586 fdt_ret = ft_system_setup(blob, gd->bd);
587 if (fdt_ret) {
Simon Glassc654b512014-10-23 18:58:54 -0600588 printf("ERROR: system-specific fdt fixup failed: %s\n",
589 fdt_strerror(fdt_ret));
590 goto err;
591 }
592 }
Simon Glass13d06982013-05-08 08:06:01 +0000593
594 /* Delete the old LMB reservation */
Alexander Grafdea21742016-03-04 01:10:13 +0100595 if (lmb)
596 lmb_free(lmb, (phys_addr_t)(u32)(uintptr_t)blob,
597 (phys_size_t)fdt_totalsize(blob));
Simon Glass13d06982013-05-08 08:06:01 +0000598
Hannes Schmelzeref476832016-09-20 18:10:43 +0200599 ret = fdt_shrink_to_minimum(blob, 0);
Simon Glass13d06982013-05-08 08:06:01 +0000600 if (ret < 0)
Simon Glass6f4dbc22014-10-23 18:58:53 -0600601 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000602 of_size = ret;
603
604 if (*initrd_start && *initrd_end) {
605 of_size += FDT_RAMDISK_OVERHEAD;
606 fdt_set_totalsize(blob, of_size);
607 }
608 /* Create a new LMB reservation */
Alexander Grafdea21742016-03-04 01:10:13 +0100609 if (lmb)
610 lmb_reserve(lmb, (ulong)blob, of_size);
Simon Glass13d06982013-05-08 08:06:01 +0000611
Masahiro Yamadadbe963a2014-04-18 17:40:59 +0900612 fdt_initrd(blob, *initrd_start, *initrd_end);
Simon Glass13d06982013-05-08 08:06:01 +0000613 if (!ft_verify_fdt(blob))
Simon Glass6f4dbc22014-10-23 18:58:53 -0600614 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000615
Khoronzhuk, Ivan7c387642014-07-16 00:59:25 +0300616#if defined(CONFIG_SOC_KEYSTONE)
Vitaly Andrianov00c200f2014-04-04 13:16:47 -0400617 if (IMAGE_OF_BOARD_SETUP)
618 ft_board_setup_ex(blob, gd->bd);
619#endif
620
Simon Glass13d06982013-05-08 08:06:01 +0000621 return 0;
Simon Glass6f4dbc22014-10-23 18:58:53 -0600622err:
623 printf(" - must RESET the board to recover.\n\n");
624
625 return ret;
Simon Glass13d06982013-05-08 08:06:01 +0000626}