blob: 9441e63a3d4fd717dc6f6bf62068312a43601e2e [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,
Patrick Delaunayf46959c2021-05-07 14:50:33 +020078 uint64_t size, enum lmb_flags flags)
Simon Goldschmidte2237a22019-01-14 22:38:17 +010079{
Patrick Delaunaye1d7ed32019-03-06 14:23:52 +010080 long ret;
Simon Goldschmidte2237a22019-01-14 22:38:17 +010081
Patrick Delaunayf46959c2021-05-07 14:50:33 +020082 ret = lmb_reserve_flags(lmb, addr, size, flags);
Patrick Delaunaye1d7ed32019-03-06 14:23:52 +010083 if (ret >= 0) {
Patrick Delaunayf46959c2021-05-07 14:50:33 +020084 debug(" reserving fdt memory region: addr=%llx size=%llx flags=%x\n",
85 (unsigned long long)addr,
86 (unsigned long long)size, flags);
Simon Goldschmidte2237a22019-01-14 22:38:17 +010087 } else {
88 puts("ERROR: reserving fdt memory region failed ");
Patrick Delaunayf46959c2021-05-07 14:50:33 +020089 printf("(addr=%llx size=%llx flags=%x)\n",
90 (unsigned long long)addr,
91 (unsigned long long)size, flags);
Simon Goldschmidte2237a22019-01-14 22:38:17 +010092 }
93}
94
Simon Glass44d3a302013-05-08 08:06:00 +000095/**
Simon Goldschmidte2237a22019-01-14 22:38:17 +010096 * boot_fdt_add_mem_rsv_regions - Mark the memreserve and reserved-memory
97 * sections as unusable
Simon Glass44d3a302013-05-08 08:06:00 +000098 * @lmb: pointer to lmb handle, will be used for memory mgmt
99 * @fdt_blob: pointer to fdt blob base address
100 *
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100101 * Adds the and reserved-memorymemreserve regions in the dtb to the lmb block.
102 * Adding the memreserve regions prevents u-boot from using them to store the
103 * initrd or the fdt blob.
Simon Glass44d3a302013-05-08 08:06:00 +0000104 */
105void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob)
106{
107 uint64_t addr, size;
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100108 int i, total, ret;
109 int nodeoffset, subnode;
110 struct fdt_resource res;
Patrick Delaunayf46959c2021-05-07 14:50:33 +0200111 enum lmb_flags flags;
Simon Glass44d3a302013-05-08 08:06:00 +0000112
113 if (fdt_check_header(fdt_blob) != 0)
114 return;
115
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100116 /* process memreserve sections */
Simon Glass44d3a302013-05-08 08:06:00 +0000117 total = fdt_num_mem_rsv(fdt_blob);
118 for (i = 0; i < total; i++) {
119 if (fdt_get_mem_rsv(fdt_blob, i, &addr, &size) != 0)
120 continue;
Patrick Delaunayf46959c2021-05-07 14:50:33 +0200121 boot_fdt_reserve_region(lmb, addr, size, LMB_NONE);
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100122 }
123
124 /* process reserved-memory */
125 nodeoffset = fdt_subnode_offset(fdt_blob, 0, "reserved-memory");
126 if (nodeoffset >= 0) {
127 subnode = fdt_first_subnode(fdt_blob, nodeoffset);
128 while (subnode >= 0) {
129 /* check if this subnode has a reg property */
130 ret = fdt_get_resource(fdt_blob, subnode, "reg", 0,
131 &res);
Thirupathaiah Annapureddy28b417c2020-01-06 22:21:42 -0800132 if (!ret && fdtdec_get_is_enabled(fdt_blob, subnode)) {
Patrick Delaunayf46959c2021-05-07 14:50:33 +0200133 flags = LMB_NONE;
134 if (fdtdec_get_bool(fdt_blob, subnode,
135 "no-map"))
136 flags = LMB_NOMAP;
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100137 addr = res.start;
138 size = res.end - res.start + 1;
Patrick Delaunayf46959c2021-05-07 14:50:33 +0200139 boot_fdt_reserve_region(lmb, addr, size, flags);
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100140 }
141
142 subnode = fdt_next_subnode(fdt_blob, subnode);
143 }
Simon Glass44d3a302013-05-08 08:06:00 +0000144 }
145}
146
147/**
148 * boot_relocate_fdt - relocate flat device tree
149 * @lmb: pointer to lmb handle, will be used for memory mgmt
150 * @of_flat_tree: pointer to a char* variable, will hold fdt start address
151 * @of_size: pointer to a ulong variable, will hold fdt length
152 *
153 * boot_relocate_fdt() allocates a region of memory within the bootmap and
154 * relocates the of_flat_tree into that region, even if the fdt is already in
155 * the bootmap. It also expands the size of the fdt by CONFIG_SYS_FDT_PAD
156 * bytes.
157 *
158 * of_flat_tree and of_size are set to final (after relocation) values
159 *
160 * returns:
161 * 0 - success
162 * 1 - failure
163 */
164int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size)
165{
166 void *fdt_blob = *of_flat_tree;
167 void *of_start = NULL;
168 char *fdt_high;
169 ulong of_len = 0;
170 int err;
171 int disable_relocation = 0;
172
173 /* nothing to do */
174 if (*of_size == 0)
175 return 0;
176
177 if (fdt_check_header(fdt_blob) != 0) {
178 fdt_error("image is not a fdt");
179 goto error;
180 }
181
182 /* position on a 4K boundary before the alloc_current */
183 /* Pad the FDT by a specified amount */
184 of_len = *of_size + CONFIG_SYS_FDT_PAD;
185
186 /* If fdt_high is set use it to select the relocation address */
Simon Glass00caae62017-08-03 12:22:12 -0600187 fdt_high = env_get("fdt_high");
Simon Glass44d3a302013-05-08 08:06:00 +0000188 if (fdt_high) {
Simon Glass7e5f4602021-07-24 09:03:29 -0600189 void *desired_addr = (void *)hextoul(fdt_high, NULL);
Simon Glass44d3a302013-05-08 08:06:00 +0000190
191 if (((ulong) desired_addr) == ~0UL) {
192 /* All ones means use fdt in place */
193 of_start = fdt_blob;
194 lmb_reserve(lmb, (ulong)of_start, of_len);
195 disable_relocation = 1;
196 } else if (desired_addr) {
197 of_start =
198 (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000,
199 (ulong)desired_addr);
200 if (of_start == NULL) {
201 puts("Failed using fdt_high value for Device Tree");
202 goto error;
203 }
204 } else {
205 of_start =
206 (void *)(ulong) lmb_alloc(lmb, of_len, 0x1000);
207 }
208 } else {
209 of_start =
210 (void *)(ulong) lmb_alloc_base(lmb, of_len, 0x1000,
Simon Glass723806c2017-08-03 12:22:15 -0600211 env_get_bootm_mapsize()
212 + env_get_bootm_low());
Simon Glass44d3a302013-05-08 08:06:00 +0000213 }
214
215 if (of_start == NULL) {
216 puts("device tree - allocation error\n");
217 goto error;
218 }
219
220 if (disable_relocation) {
221 /*
222 * We assume there is space after the existing fdt to use
223 * for padding
224 */
225 fdt_set_totalsize(of_start, of_len);
226 printf(" Using Device Tree in place at %p, end %p\n",
227 of_start, of_start + of_len - 1);
228 } else {
229 debug("## device tree at %p ... %p (len=%ld [0x%lX])\n",
230 fdt_blob, fdt_blob + *of_size - 1, of_len, of_len);
231
232 printf(" Loading Device Tree to %p, end %p ... ",
233 of_start, of_start + of_len - 1);
234
235 err = fdt_open_into(fdt_blob, of_start, of_len);
236 if (err != 0) {
237 fdt_error("fdt move failed");
238 goto error;
239 }
240 puts("OK\n");
241 }
242
243 *of_flat_tree = of_start;
244 *of_size = of_len;
245
Simon Goldschmidt596be5f2018-12-17 20:14:42 +0100246 if (CONFIG_IS_ENABLED(CMD_FDT))
247 set_working_fdt_addr(map_to_sysmem(*of_flat_tree));
Simon Glass44d3a302013-05-08 08:06:00 +0000248 return 0;
249
250error:
251 return 1;
252}
253
Simon Glass44d3a302013-05-08 08:06:00 +0000254/**
255 * boot_get_fdt - main fdt handling routine
256 * @argc: command argument count
257 * @argv: command argument list
Simon Glass53f375f2013-05-16 13:53:23 +0000258 * @arch: architecture (IH_ARCH_...)
Simon Glass44d3a302013-05-08 08:06:00 +0000259 * @images: pointer to the bootm images structure
260 * @of_flat_tree: pointer to a char* variable, will hold fdt start address
261 * @of_size: pointer to a ulong variable, will hold fdt length
262 *
263 * boot_get_fdt() is responsible for finding a valid flat device tree image.
264 * Curently supported are the following ramdisk sources:
265 * - multicomponent kernel/ramdisk image,
266 * - commandline provided address of decicated ramdisk image.
267 *
268 * returns:
269 * 0, if fdt image was found and valid, or skipped
270 * of_flat_tree and of_size are set to fdt start address and length if
271 * fdt image is found and valid
272 *
273 * 1, if fdt image is found but corrupted
274 * of_flat_tree and of_size are set to 0 if no fdt exists
275 */
Simon Glass09140112020-05-10 11:40:03 -0600276int boot_get_fdt(int flag, int argc, char *const argv[], uint8_t arch,
277 bootm_headers_t *images, char **of_flat_tree, ulong *of_size)
Simon Glass44d3a302013-05-08 08:06:00 +0000278{
Tom Rinic76c93a2019-05-23 07:14:07 -0400279#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
Simon Glass44d3a302013-05-08 08:06:00 +0000280 const image_header_t *fdt_hdr;
Heiko Schocher21d29f72014-05-28 11:33:33 +0200281 ulong load, load_end;
282 ulong image_start, image_data, image_end;
283#endif
Shawn Guo6a7b4062019-01-15 22:26:37 +0800284 ulong img_addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000285 ulong fdt_addr;
286 char *fdt_blob = NULL;
Simon Glass44d3a302013-05-08 08:06:00 +0000287 void *buf;
Simon Glass73223f02016-02-22 22:55:43 -0700288#if CONFIG_IS_ENABLED(FIT)
Simon Glassf320a4d2013-07-10 23:08:10 -0700289 const char *fit_uname_config = images->fit_uname_cfg;
Simon Glass44d3a302013-05-08 08:06:00 +0000290 const char *fit_uname_fdt = NULL;
291 ulong default_addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000292 int fdt_noffset;
Simon Glass44d3a302013-05-08 08:06:00 +0000293#endif
Simon Glass983c72f2013-06-11 11:14:46 -0700294 const char *select = NULL;
Simon Glass44d3a302013-05-08 08:06:00 +0000295
296 *of_flat_tree = NULL;
297 *of_size = 0;
298
Simon Glassbb872dd2019-12-28 10:45:02 -0700299 img_addr = (argc == 0) ? image_load_addr :
Simon Glass7e5f4602021-07-24 09:03:29 -0600300 hextoul(argv[0], NULL);
Shawn Guo6a7b4062019-01-15 22:26:37 +0800301 buf = map_sysmem(img_addr, 0);
302
Simon Glass983c72f2013-06-11 11:14:46 -0700303 if (argc > 2)
304 select = argv[2];
305 if (select || genimg_has_config(images)) {
Simon Glass73223f02016-02-22 22:55:43 -0700306#if CONFIG_IS_ENABLED(FIT)
Simon Glass983c72f2013-06-11 11:14:46 -0700307 if (select) {
Simon Glass44d3a302013-05-08 08:06:00 +0000308 /*
309 * If the FDT blob comes from the FIT image and the
310 * FIT image address is omitted in the command line
311 * argument, try to use ramdisk or os FIT image
312 * address or default load address.
313 */
314 if (images->fit_uname_rd)
315 default_addr = (ulong)images->fit_hdr_rd;
316 else if (images->fit_uname_os)
317 default_addr = (ulong)images->fit_hdr_os;
318 else
Simon Glassbb872dd2019-12-28 10:45:02 -0700319 default_addr = image_load_addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000320
Simon Glass983c72f2013-06-11 11:14:46 -0700321 if (fit_parse_conf(select, default_addr,
Simon Glass44d3a302013-05-08 08:06:00 +0000322 &fdt_addr, &fit_uname_config)) {
323 debug("* fdt: config '%s' from image at 0x%08lx\n",
324 fit_uname_config, fdt_addr);
Simon Glass983c72f2013-06-11 11:14:46 -0700325 } else if (fit_parse_subimage(select, default_addr,
Simon Glass44d3a302013-05-08 08:06:00 +0000326 &fdt_addr, &fit_uname_fdt)) {
327 debug("* fdt: subimage '%s' from image at 0x%08lx\n",
328 fit_uname_fdt, fdt_addr);
329 } else
330#endif
331 {
Simon Glass7e5f4602021-07-24 09:03:29 -0600332 fdt_addr = hextoul(select, NULL);
Simon Glass44d3a302013-05-08 08:06:00 +0000333 debug("* fdt: cmdline image address = 0x%08lx\n",
334 fdt_addr);
335 }
Simon Glass73223f02016-02-22 22:55:43 -0700336#if CONFIG_IS_ENABLED(FIT)
Simon Glass44d3a302013-05-08 08:06:00 +0000337 } else {
338 /* use FIT configuration provided in first bootm
339 * command argument
340 */
341 fdt_addr = map_to_sysmem(images->fit_hdr_os);
Simon Glass53f375f2013-05-16 13:53:23 +0000342 fdt_noffset = fit_get_node_from_config(images,
343 FIT_FDT_PROP,
344 fdt_addr);
Paul Burtonbd86ef12016-09-20 18:17:12 +0100345 if (fdt_noffset == -ENOENT)
Simon Glass44d3a302013-05-08 08:06:00 +0000346 return 0;
Simon Glass53f375f2013-05-16 13:53:23 +0000347 else if (fdt_noffset < 0)
348 return 1;
Simon Glass44d3a302013-05-08 08:06:00 +0000349 }
350#endif
Simon Glass44d3a302013-05-08 08:06:00 +0000351 debug("## Checking for 'FDT'/'FDT Image' at %08lx\n",
352 fdt_addr);
353
Simon Glass44d3a302013-05-08 08:06:00 +0000354 /*
355 * Check if there is an FDT image at the
356 * address provided in the second bootm argument
357 * check image type, for FIT images get a FIT node.
358 */
359 buf = map_sysmem(fdt_addr, 0);
360 switch (genimg_get_format(buf)) {
Tom Rinic76c93a2019-05-23 07:14:07 -0400361#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
Simon Glass44d3a302013-05-08 08:06:00 +0000362 case IMAGE_FORMAT_LEGACY:
363 /* verify fdt_addr points to a valid image header */
364 printf("## Flattened Device Tree from Legacy Image at %08lx\n",
365 fdt_addr);
366 fdt_hdr = image_get_fdt(fdt_addr);
367 if (!fdt_hdr)
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800368 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000369
370 /*
371 * move image data to the load address,
372 * make sure we don't overwrite initial image
373 */
374 image_start = (ulong)fdt_hdr;
375 image_data = (ulong)image_get_data(fdt_hdr);
376 image_end = image_get_image_end(fdt_hdr);
377
Simon Glass53f375f2013-05-16 13:53:23 +0000378 load = image_get_load(fdt_hdr);
379 load_end = load + image_get_data_size(fdt_hdr);
Simon Glass44d3a302013-05-08 08:06:00 +0000380
Simon Glass53f375f2013-05-16 13:53:23 +0000381 if (load == image_start ||
382 load == image_data) {
Peng Fan2ea47be2015-11-24 16:54:22 +0800383 fdt_addr = load;
Simon Glass44d3a302013-05-08 08:06:00 +0000384 break;
385 }
386
Simon Glass53f375f2013-05-16 13:53:23 +0000387 if ((load < image_end) && (load_end > image_start)) {
Simon Glass44d3a302013-05-08 08:06:00 +0000388 fdt_error("fdt overwritten");
389 goto error;
390 }
391
392 debug(" Loading FDT from 0x%08lx to 0x%08lx\n",
Simon Glass53f375f2013-05-16 13:53:23 +0000393 image_data, load);
Simon Glass44d3a302013-05-08 08:06:00 +0000394
Simon Glass53f375f2013-05-16 13:53:23 +0000395 memmove((void *)load,
Simon Glass44d3a302013-05-08 08:06:00 +0000396 (void *)image_data,
397 image_get_data_size(fdt_hdr));
398
Simon Glass53f375f2013-05-16 13:53:23 +0000399 fdt_addr = load;
Simon Glass44d3a302013-05-08 08:06:00 +0000400 break;
Heiko Schocher21d29f72014-05-28 11:33:33 +0200401#endif
Simon Glass44d3a302013-05-08 08:06:00 +0000402 case IMAGE_FORMAT_FIT:
403 /*
404 * This case will catch both: new uImage format
405 * (libfdt based) and raw FDT blob (also libfdt
406 * based).
407 */
Simon Glass73223f02016-02-22 22:55:43 -0700408#if CONFIG_IS_ENABLED(FIT)
Simon Glass44d3a302013-05-08 08:06:00 +0000409 /* check FDT blob vs FIT blob */
Simon Glassc5819702021-02-15 17:08:09 -0700410 if (!fit_check_format(buf, IMAGE_SIZE_INVAL)) {
Simon Glass53f375f2013-05-16 13:53:23 +0000411 ulong load, len;
Simon Glass44d3a302013-05-08 08:06:00 +0000412
Pantelis Antoniou169043d2017-09-04 23:12:16 +0300413 fdt_noffset = boot_get_fdt_fit(images,
Simon Glass53f375f2013-05-16 13:53:23 +0000414 fdt_addr, &fit_uname_fdt,
Simon Glassf320a4d2013-07-10 23:08:10 -0700415 &fit_uname_config,
Pantelis Antoniou169043d2017-09-04 23:12:16 +0300416 arch, &load, &len);
Simon Glass44d3a302013-05-08 08:06:00 +0000417
Hongwei Zhang9883df12020-12-02 14:47:03 -0500418 if (fdt_noffset < 0)
419 goto error;
420
Simon Glass53f375f2013-05-16 13:53:23 +0000421 images->fit_hdr_fdt = map_sysmem(fdt_addr, 0);
Simon Glass44d3a302013-05-08 08:06:00 +0000422 images->fit_uname_fdt = fit_uname_fdt;
423 images->fit_noffset_fdt = fdt_noffset;
Simon Glass53f375f2013-05-16 13:53:23 +0000424 fdt_addr = load;
Pantelis Antoniou169043d2017-09-04 23:12:16 +0300425
Simon Glass44d3a302013-05-08 08:06:00 +0000426 break;
427 } else
428#endif
429 {
430 /*
431 * FDT blob
432 */
Simon Glass44d3a302013-05-08 08:06:00 +0000433 debug("* fdt: raw FDT blob\n");
434 printf("## Flattened Device Tree blob at %08lx\n",
435 (long)fdt_addr);
436 }
437 break;
438 default:
439 puts("ERROR: Did not find a cmdline Flattened Device Tree\n");
Tero Kristo19c68082020-06-12 15:41:19 +0300440 goto error;
Simon Glass44d3a302013-05-08 08:06:00 +0000441 }
442
Simon Glass53f375f2013-05-16 13:53:23 +0000443 printf(" Booting using the fdt blob at %#08lx\n", fdt_addr);
444 fdt_blob = map_sysmem(fdt_addr, 0);
Simon Glass44d3a302013-05-08 08:06:00 +0000445 } else if (images->legacy_hdr_valid &&
446 image_check_type(&images->legacy_hdr_os_copy,
447 IH_TYPE_MULTI)) {
448 ulong fdt_data, fdt_len;
449
450 /*
451 * Now check if we have a legacy multi-component image,
452 * get second entry data start address and len.
453 */
454 printf("## Flattened Device Tree from multi component Image at %08lX\n",
455 (ulong)images->legacy_hdr_os);
456
457 image_multi_getimg(images->legacy_hdr_os, 2, &fdt_data,
458 &fdt_len);
459 if (fdt_len) {
460 fdt_blob = (char *)fdt_data;
461 printf(" Booting using the fdt at 0x%p\n", fdt_blob);
462
463 if (fdt_check_header(fdt_blob) != 0) {
464 fdt_error("image is not a fdt");
465 goto error;
466 }
467
468 if (fdt_totalsize(fdt_blob) != fdt_len) {
469 fdt_error("fdt size != image size");
470 goto error;
471 }
472 } else {
473 debug("## No Flattened Device Tree\n");
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800474 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000475 }
Shawn Guo6a7b4062019-01-15 22:26:37 +0800476#ifdef CONFIG_ANDROID_BOOT_IMAGE
477 } else if (genimg_get_format(buf) == IMAGE_FORMAT_ANDROID) {
478 struct andr_img_hdr *hdr = buf;
chenshuo6e314582020-07-20 08:48:15 +0800479 ulong fdt_data, fdt_len;
480 u32 fdt_size, dtb_idx;
481 /*
482 * Firstly check if this android boot image has dtb field.
483 */
484 dtb_idx = (u32)env_get_ulong("adtb_idx", 10, 0);
485 if (android_image_get_dtb_by_index((ulong)hdr, dtb_idx, &fdt_addr, &fdt_size)) {
486 fdt_blob = (char *)map_sysmem(fdt_addr, 0);
487 if (fdt_check_header(fdt_blob))
488 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800489
chenshuo6e314582020-07-20 08:48:15 +0800490 debug("## Using FDT in Android image dtb area with idx %u\n", dtb_idx);
491 } else if (!android_image_get_second(hdr, &fdt_data, &fdt_len) &&
492 !fdt_check_header((char *)fdt_data)) {
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200493 fdt_blob = (char *)fdt_data;
494 if (fdt_totalsize(fdt_blob) != fdt_len)
495 goto error;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800496
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200497 debug("## Using FDT in Android image second area\n");
498 } else {
Eugeniu Rosca62392672019-04-01 12:52:52 +0200499 fdt_addr = env_get_hex("fdtaddr", 0);
500 if (!fdt_addr)
501 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800502
Eugeniu Rosca62392672019-04-01 12:52:52 +0200503 fdt_blob = map_sysmem(fdt_addr, 0);
504 if (fdt_check_header(fdt_blob))
505 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800506
Eugeniu Rosca62392672019-04-01 12:52:52 +0200507 debug("## Using FDT at ${fdtaddr}=Ox%lx\n", fdt_addr);
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200508 }
Shawn Guo6a7b4062019-01-15 22:26:37 +0800509#endif
Simon Glass44d3a302013-05-08 08:06:00 +0000510 } else {
511 debug("## No Flattened Device Tree\n");
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800512 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000513 }
514
515 *of_flat_tree = fdt_blob;
516 *of_size = fdt_totalsize(fdt_blob);
517 debug(" of_flat_tree at 0x%08lx size 0x%08lx\n",
518 (ulong)*of_flat_tree, *of_size);
519
520 return 0;
521
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800522no_fdt:
Eugeniu Rosca80281822019-04-01 12:45:35 +0200523 debug("Continuing to boot without FDT\n");
524 return 0;
Simon Glass44d3a302013-05-08 08:06:00 +0000525error:
Simon Glass44d3a302013-05-08 08:06:00 +0000526 return 1;
527}
Simon Glass13d06982013-05-08 08:06:01 +0000528
529/*
530 * Verify the device tree.
531 *
532 * This function is called after all device tree fix-ups have been enacted,
533 * so that the final device tree can be verified. The definition of "verified"
534 * is up to the specific implementation. However, it generally means that the
535 * addresses of some of the devices in the device tree are compared with the
536 * actual addresses at which U-Boot has placed them.
537 *
Bin Menga1875592016-02-05 19:30:11 -0800538 * Returns 1 on success, 0 on failure. If 0 is returned, U-Boot will halt the
Simon Glass13d06982013-05-08 08:06:01 +0000539 * boot process.
540 */
541__weak int ft_verify_fdt(void *fdt)
542{
543 return 1;
544}
545
Alexey Brodkin42803422018-01-24 20:47:09 +0300546__weak int arch_fixup_fdt(void *blob)
547{
548 return 0;
549}
550
Simon Glass13d06982013-05-08 08:06:01 +0000551int image_setup_libfdt(bootm_headers_t *images, void *blob,
552 int of_size, struct lmb *lmb)
553{
554 ulong *initrd_start = &images->initrd_start;
555 ulong *initrd_end = &images->initrd_end;
Simon Glass6f4dbc22014-10-23 18:58:53 -0600556 int ret = -EPERM;
557 int fdt_ret;
Simon Glass13d06982013-05-08 08:06:01 +0000558
Paul Kocialkowski10be5b52015-05-21 11:27:03 +0200559 if (fdt_root(blob) < 0) {
560 printf("ERROR: root node setup failed\n");
561 goto err;
562 }
Masahiro Yamadabc6ed0f2014-04-18 17:41:00 +0900563 if (fdt_chosen(blob) < 0) {
Simon Glass6f4dbc22014-10-23 18:58:53 -0600564 printf("ERROR: /chosen node create failed\n");
565 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000566 }
Ma Haijune29607e2014-07-12 14:24:06 +0100567 if (arch_fixup_fdt(blob) < 0) {
Simon Glass6f4dbc22014-10-23 18:58:53 -0600568 printf("ERROR: arch-specific fdt fixup failed\n");
569 goto err;
Ma Haijune29607e2014-07-12 14:24:06 +0100570 }
Etienne Carriere5f9070a2020-06-05 09:22:54 +0200571
Patrick Delaunaya2535242021-02-08 13:54:31 +0100572 fdt_ret = optee_copy_fdt_nodes(blob);
Etienne Carriere5f9070a2020-06-05 09:22:54 +0200573 if (fdt_ret) {
574 printf("ERROR: transfer of optee nodes to new fdt failed: %s\n",
575 fdt_strerror(fdt_ret));
576 goto err;
577 }
578
Tom Rini26d61192017-04-28 08:51:44 -0400579 /* Update ethernet nodes */
580 fdt_fixup_ethernet(blob);
Frédéric Danis9ea0a1e2020-03-20 10:59:24 +0100581#if CONFIG_IS_ENABLED(CMD_PSTORE)
582 /* Append PStore configuration */
583 fdt_fixup_pstore(blob);
584#endif
Simon Glass6f4dbc22014-10-23 18:58:53 -0600585 if (IMAGE_OF_BOARD_SETUP) {
Wasim Khan402558b2021-02-04 15:44:04 +0100586 const char *skip_board_fixup;
587
588 skip_board_fixup = env_get("skip_board_fixup");
589 if (skip_board_fixup && ((int)simple_strtol(skip_board_fixup, NULL, 10) == 1)) {
590 printf("skip board fdt fixup\n");
591 } else {
592 fdt_ret = ft_board_setup(blob, gd->bd);
593 if (fdt_ret) {
594 printf("ERROR: board-specific fdt fixup failed: %s\n",
595 fdt_strerror(fdt_ret));
596 goto err;
597 }
Simon Glass6f4dbc22014-10-23 18:58:53 -0600598 }
599 }
Simon Glassc654b512014-10-23 18:58:54 -0600600 if (IMAGE_OF_SYSTEM_SETUP) {
Max Krummenacherd89212b2015-08-05 17:17:03 +0200601 fdt_ret = ft_system_setup(blob, gd->bd);
602 if (fdt_ret) {
Simon Glassc654b512014-10-23 18:58:54 -0600603 printf("ERROR: system-specific fdt fixup failed: %s\n",
604 fdt_strerror(fdt_ret));
605 goto err;
606 }
607 }
Simon Glass13d06982013-05-08 08:06:01 +0000608
609 /* Delete the old LMB reservation */
Alexander Grafdea21742016-03-04 01:10:13 +0100610 if (lmb)
611 lmb_free(lmb, (phys_addr_t)(u32)(uintptr_t)blob,
612 (phys_size_t)fdt_totalsize(blob));
Simon Glass13d06982013-05-08 08:06:01 +0000613
Hannes Schmelzeref476832016-09-20 18:10:43 +0200614 ret = fdt_shrink_to_minimum(blob, 0);
Simon Glass13d06982013-05-08 08:06:01 +0000615 if (ret < 0)
Simon Glass6f4dbc22014-10-23 18:58:53 -0600616 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000617 of_size = ret;
618
619 if (*initrd_start && *initrd_end) {
620 of_size += FDT_RAMDISK_OVERHEAD;
621 fdt_set_totalsize(blob, of_size);
622 }
623 /* Create a new LMB reservation */
Alexander Grafdea21742016-03-04 01:10:13 +0100624 if (lmb)
625 lmb_reserve(lmb, (ulong)blob, of_size);
Simon Glass13d06982013-05-08 08:06:01 +0000626
Masahiro Yamadadbe963a2014-04-18 17:40:59 +0900627 fdt_initrd(blob, *initrd_start, *initrd_end);
Simon Glass13d06982013-05-08 08:06:01 +0000628 if (!ft_verify_fdt(blob))
Simon Glass6f4dbc22014-10-23 18:58:53 -0600629 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000630
Khoronzhuk, Ivan7c387642014-07-16 00:59:25 +0300631#if defined(CONFIG_SOC_KEYSTONE)
Vitaly Andrianov00c200f2014-04-04 13:16:47 -0400632 if (IMAGE_OF_BOARD_SETUP)
633 ft_board_setup_ex(blob, gd->bd);
634#endif
635
Simon Glass13d06982013-05-08 08:06:01 +0000636 return 0;
Simon Glass6f4dbc22014-10-23 18:58:53 -0600637err:
638 printf(" - must RESET the board to recover.\n\n");
639
640 return ret;
Simon Glass13d06982013-05-08 08:06:01 +0000641}