blob: b830a0ab4187bd3e265167f712e9a7941c0b45cd [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>
Simon Glass98887ab2022-07-30 15:52:31 -060024#include <dm/ofnode.h>
Heiko Stuebner6ccb05e2019-10-23 16:46:40 +020025#include <tee/optee.h>
Simon Glass44d3a302013-05-08 08:06:00 +000026
Masahiro Yamadac960a682018-03-21 18:03:33 +090027/* adding a ramdisk needs 0x44 bytes in version 2008.10 */
28#define FDT_RAMDISK_OVERHEAD 0x80
29
Simon Glass44d3a302013-05-08 08:06:00 +000030DECLARE_GLOBAL_DATA_PTR;
31
32static void fdt_error(const char *msg)
33{
34 puts("ERROR: ");
35 puts(msg);
36 puts(" - must RESET the board to recover.\n");
37}
38
Tom Rinic76c93a2019-05-23 07:14:07 -040039#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
Simon Glassf3543e62022-09-06 20:26:52 -060040static const struct legacy_img_hdr *image_get_fdt(ulong fdt_addr)
Simon Glass44d3a302013-05-08 08:06:00 +000041{
Simon Glassf3543e62022-09-06 20:26:52 -060042 const struct legacy_img_hdr *fdt_hdr = map_sysmem(fdt_addr, 0);
Simon Glass44d3a302013-05-08 08:06:00 +000043
44 image_print_contents(fdt_hdr);
45
46 puts(" Verifying Checksum ... ");
47 if (!image_check_hcrc(fdt_hdr)) {
48 fdt_error("fdt header checksum invalid");
49 return NULL;
50 }
51
52 if (!image_check_dcrc(fdt_hdr)) {
53 fdt_error("fdt checksum invalid");
54 return NULL;
55 }
56 puts("OK\n");
57
58 if (!image_check_type(fdt_hdr, IH_TYPE_FLATDT)) {
59 fdt_error("uImage is not a fdt");
60 return NULL;
61 }
62 if (image_get_comp(fdt_hdr) != IH_COMP_NONE) {
63 fdt_error("uImage is compressed");
64 return NULL;
65 }
Masahiro Yamada2f0877c2013-09-19 12:10:18 +090066 if (fdt_check_header((void *)image_get_data(fdt_hdr)) != 0) {
Simon Glass44d3a302013-05-08 08:06:00 +000067 fdt_error("uImage data is not a fdt");
68 return NULL;
69 }
70 return fdt_hdr;
71}
Heiko Schocher21d29f72014-05-28 11:33:33 +020072#endif
Simon Glass44d3a302013-05-08 08:06:00 +000073
Simon Goldschmidte2237a22019-01-14 22:38:17 +010074static void boot_fdt_reserve_region(struct lmb *lmb, uint64_t addr,
Patrick Delaunayf46959c2021-05-07 14:50:33 +020075 uint64_t size, enum lmb_flags flags)
Simon Goldschmidte2237a22019-01-14 22:38:17 +010076{
Patrick Delaunaye1d7ed32019-03-06 14:23:52 +010077 long ret;
Simon Goldschmidte2237a22019-01-14 22:38:17 +010078
Patrick Delaunayf46959c2021-05-07 14:50:33 +020079 ret = lmb_reserve_flags(lmb, addr, size, flags);
Patrick Delaunaye1d7ed32019-03-06 14:23:52 +010080 if (ret >= 0) {
Patrick Delaunayf46959c2021-05-07 14:50:33 +020081 debug(" reserving fdt memory region: addr=%llx size=%llx flags=%x\n",
82 (unsigned long long)addr,
83 (unsigned long long)size, flags);
Simon Goldschmidte2237a22019-01-14 22:38:17 +010084 } else {
85 puts("ERROR: reserving fdt memory region failed ");
Patrick Delaunayf46959c2021-05-07 14:50:33 +020086 printf("(addr=%llx size=%llx flags=%x)\n",
87 (unsigned long long)addr,
88 (unsigned long long)size, flags);
Simon Goldschmidte2237a22019-01-14 22:38:17 +010089 }
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;
Patrick Delaunayf46959c2021-05-07 14:50:33 +0200108 enum lmb_flags flags;
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;
Patrick Delaunayf46959c2021-05-07 14:50:33 +0200118 boot_fdt_reserve_region(lmb, addr, size, LMB_NONE);
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100119 }
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)) {
Patrick Delaunayf46959c2021-05-07 14:50:33 +0200130 flags = LMB_NONE;
131 if (fdtdec_get_bool(fdt_blob, subnode,
132 "no-map"))
133 flags = LMB_NOMAP;
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100134 addr = res.start;
135 size = res.end - res.start + 1;
Patrick Delaunayf46959c2021-05-07 14:50:33 +0200136 boot_fdt_reserve_region(lmb, addr, size, flags);
Simon Goldschmidte2237a22019-01-14 22:38:17 +0100137 }
138
139 subnode = fdt_next_subnode(fdt_blob, subnode);
140 }
Simon Glass44d3a302013-05-08 08:06:00 +0000141 }
142}
143
144/**
145 * boot_relocate_fdt - relocate flat device tree
146 * @lmb: pointer to lmb handle, will be used for memory mgmt
147 * @of_flat_tree: pointer to a char* variable, will hold fdt start address
148 * @of_size: pointer to a ulong variable, will hold fdt length
149 *
150 * boot_relocate_fdt() allocates a region of memory within the bootmap and
151 * relocates the of_flat_tree into that region, even if the fdt is already in
152 * the bootmap. It also expands the size of the fdt by CONFIG_SYS_FDT_PAD
153 * bytes.
154 *
155 * of_flat_tree and of_size are set to final (after relocation) values
156 *
157 * returns:
158 * 0 - success
159 * 1 - failure
160 */
161int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size)
162{
163 void *fdt_blob = *of_flat_tree;
164 void *of_start = NULL;
Marek Vasuta96d5652022-04-08 02:09:19 +0200165 u64 start, size, usable;
Simon Glass44d3a302013-05-08 08:06:00 +0000166 char *fdt_high;
Marek Vasuta96d5652022-04-08 02:09:19 +0200167 ulong mapsize, low;
Simon Glass44d3a302013-05-08 08:06:00 +0000168 ulong of_len = 0;
Marek Vasuta96d5652022-04-08 02:09:19 +0200169 int bank;
Simon Glass44d3a302013-05-08 08:06:00 +0000170 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 Glass19511932022-10-11 09:47:10 -0600189 ulong desired_addr = hextoul(fdt_high, NULL);
190 ulong addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000191
Simon Glass19511932022-10-11 09:47:10 -0600192 if (desired_addr == ~0UL) {
Simon Glass44d3a302013-05-08 08:06:00 +0000193 /* All ones means use fdt in place */
194 of_start = fdt_blob;
Simon Glass19511932022-10-11 09:47:10 -0600195 lmb_reserve(lmb, map_to_sysmem(of_start), of_len);
Simon Glass44d3a302013-05-08 08:06:00 +0000196 disable_relocation = 1;
197 } else if (desired_addr) {
Simon Glass19511932022-10-11 09:47:10 -0600198 addr = lmb_alloc_base(lmb, of_len, 0x1000,
199 desired_addr);
200 of_start = map_sysmem(addr, of_len);
Simon Glass44d3a302013-05-08 08:06:00 +0000201 if (of_start == NULL) {
202 puts("Failed using fdt_high value for Device Tree");
203 goto error;
204 }
205 } else {
Simon Glass19511932022-10-11 09:47:10 -0600206 addr = lmb_alloc(lmb, of_len, 0x1000);
207 of_start = map_sysmem(addr, of_len);
Simon Glass44d3a302013-05-08 08:06:00 +0000208 }
209 } else {
Marek Vasuta96d5652022-04-08 02:09:19 +0200210 mapsize = env_get_bootm_mapsize();
211 low = env_get_bootm_low();
212 of_start = NULL;
213
214 for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) {
215 start = gd->bd->bi_dram[bank].start;
216 size = gd->bd->bi_dram[bank].size;
217
218 /* DRAM bank addresses are too low, skip it. */
219 if (start + size < low)
220 continue;
221
222 usable = min(size, (u64)mapsize);
223
224 /*
225 * At least part of this DRAM bank is usable, try
226 * using it for LMB allocation.
227 */
Simon Glass19511932022-10-11 09:47:10 -0600228 of_start = map_sysmem((ulong)lmb_alloc_base(lmb,
229 of_len, 0x1000, start + usable), of_len);
Marek Vasuta96d5652022-04-08 02:09:19 +0200230 /* Allocation succeeded, use this block. */
231 if (of_start != NULL)
232 break;
233
234 /*
235 * Reduce the mapping size in the next bank
236 * by the size of attempt in current bank.
237 */
238 mapsize -= usable - max(start, (u64)low);
239 if (!mapsize)
240 break;
241 }
Simon Glass44d3a302013-05-08 08:06:00 +0000242 }
243
244 if (of_start == NULL) {
245 puts("device tree - allocation error\n");
246 goto error;
247 }
248
249 if (disable_relocation) {
250 /*
251 * We assume there is space after the existing fdt to use
252 * for padding
253 */
254 fdt_set_totalsize(of_start, of_len);
255 printf(" Using Device Tree in place at %p, end %p\n",
256 of_start, of_start + of_len - 1);
257 } else {
258 debug("## device tree at %p ... %p (len=%ld [0x%lX])\n",
259 fdt_blob, fdt_blob + *of_size - 1, of_len, of_len);
260
261 printf(" Loading Device Tree to %p, end %p ... ",
262 of_start, of_start + of_len - 1);
263
264 err = fdt_open_into(fdt_blob, of_start, of_len);
265 if (err != 0) {
266 fdt_error("fdt move failed");
267 goto error;
268 }
269 puts("OK\n");
270 }
271
272 *of_flat_tree = of_start;
273 *of_size = of_len;
274
Simon Goldschmidt596be5f2018-12-17 20:14:42 +0100275 if (CONFIG_IS_ENABLED(CMD_FDT))
276 set_working_fdt_addr(map_to_sysmem(*of_flat_tree));
Simon Glass44d3a302013-05-08 08:06:00 +0000277 return 0;
278
279error:
280 return 1;
281}
282
Simon Glass44d3a302013-05-08 08:06:00 +0000283/**
Simon Glass4cb35b72021-09-25 19:43:41 -0600284 * select_fdt() - Select and locate the FDT to use
285 *
286 * @images: pointer to the bootm images structure
287 * @select: name of FDT to select, or NULL for any
288 * @arch: expected FDT architecture
289 * @fdt_addrp: pointer to a ulong variable, will hold FDT pointer
Heinrich Schuchardt185f8122022-01-19 18:05:50 +0100290 * Return: 0 if OK, -ENOPKG if no FDT (but an error should not be reported),
Simon Glass4cb35b72021-09-25 19:43:41 -0600291 * other -ve value on other error
292 */
293
Simon Glassd9d7c202022-09-06 20:26:50 -0600294static int select_fdt(struct bootm_headers *images, const char *select, u8 arch,
Simon Glass4cb35b72021-09-25 19:43:41 -0600295 ulong *fdt_addrp)
296{
297 const char *buf;
298 ulong fdt_addr;
299
300#if CONFIG_IS_ENABLED(FIT)
301 const char *fit_uname_config = images->fit_uname_cfg;
302 const char *fit_uname_fdt = NULL;
303 ulong default_addr;
304 int fdt_noffset;
305
306 if (select) {
307 /*
308 * If the FDT blob comes from the FIT image and the
309 * FIT image address is omitted in the command line
310 * argument, try to use ramdisk or os FIT image
311 * address or default load address.
312 */
313 if (images->fit_uname_rd)
314 default_addr = (ulong)images->fit_hdr_rd;
315 else if (images->fit_uname_os)
316 default_addr = (ulong)images->fit_hdr_os;
317 else
318 default_addr = image_load_addr;
319
320 if (fit_parse_conf(select, default_addr, &fdt_addr,
321 &fit_uname_config)) {
322 debug("* fdt: config '%s' from image at 0x%08lx\n",
323 fit_uname_config, fdt_addr);
324 } else if (fit_parse_subimage(select, default_addr, &fdt_addr,
325 &fit_uname_fdt)) {
326 debug("* fdt: subimage '%s' from image at 0x%08lx\n",
327 fit_uname_fdt, fdt_addr);
328 } else
329#endif
330 {
331 fdt_addr = hextoul(select, NULL);
332 debug("* fdt: cmdline image address = 0x%08lx\n",
333 fdt_addr);
334 }
335#if CONFIG_IS_ENABLED(FIT)
336 } else {
337 /* use FIT configuration provided in first bootm
338 * command argument
339 */
340 fdt_addr = map_to_sysmem(images->fit_hdr_os);
341 fdt_noffset = fit_get_node_from_config(images, FIT_FDT_PROP,
342 fdt_addr);
343 if (fdt_noffset == -ENOENT)
344 return -ENOPKG;
345 else if (fdt_noffset < 0)
346 return fdt_noffset;
347 }
348#endif
349 debug("## Checking for 'FDT'/'FDT Image' at %08lx\n",
350 fdt_addr);
351
352 /*
353 * Check if there is an FDT image at the
354 * address provided in the second bootm argument
355 * check image type, for FIT images get a FIT node.
356 */
357 buf = map_sysmem(fdt_addr, 0);
358 switch (genimg_get_format(buf)) {
359#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
360 case IMAGE_FORMAT_LEGACY: {
Simon Glassf3543e62022-09-06 20:26:52 -0600361 const struct legacy_img_hdr *fdt_hdr;
Simon Glass4cb35b72021-09-25 19:43:41 -0600362 ulong load, load_end;
363 ulong image_start, image_data, image_end;
364
365 /* verify fdt_addr points to a valid image header */
366 printf("## Flattened Device Tree from Legacy Image at %08lx\n",
367 fdt_addr);
368 fdt_hdr = image_get_fdt(fdt_addr);
369 if (!fdt_hdr)
370 return -ENOPKG;
371
372 /*
373 * move image data to the load address,
374 * make sure we don't overwrite initial image
375 */
376 image_start = (ulong)fdt_hdr;
377 image_data = (ulong)image_get_data(fdt_hdr);
378 image_end = image_get_image_end(fdt_hdr);
379
380 load = image_get_load(fdt_hdr);
381 load_end = load + image_get_data_size(fdt_hdr);
382
383 if (load == image_start ||
384 load == image_data) {
385 fdt_addr = load;
386 break;
387 }
388
389 if ((load < image_end) && (load_end > image_start)) {
390 fdt_error("fdt overwritten");
391 return -EFAULT;
392 }
393
394 debug(" Loading FDT from 0x%08lx to 0x%08lx\n",
395 image_data, load);
396
397 memmove((void *)load,
398 (void *)image_data,
399 image_get_data_size(fdt_hdr));
400
401 fdt_addr = load;
402 break;
403 }
404#endif
405 case IMAGE_FORMAT_FIT:
406 /*
407 * This case will catch both: new uImage format
408 * (libfdt based) and raw FDT blob (also libfdt
409 * based).
410 */
411#if CONFIG_IS_ENABLED(FIT)
412 /* check FDT blob vs FIT blob */
413 if (!fit_check_format(buf, IMAGE_SIZE_INVAL)) {
414 ulong load, len;
415
416 fdt_noffset = boot_get_fdt_fit(images, fdt_addr,
417 &fit_uname_fdt,
418 &fit_uname_config,
419 arch, &load, &len);
420
421 if (fdt_noffset < 0)
422 return -ENOENT;
423
424 images->fit_hdr_fdt = map_sysmem(fdt_addr, 0);
425 images->fit_uname_fdt = fit_uname_fdt;
426 images->fit_noffset_fdt = fdt_noffset;
427 fdt_addr = load;
428
429 break;
430 } else
431#endif
432 {
433 /*
434 * FDT blob
435 */
436 debug("* fdt: raw FDT blob\n");
437 printf("## Flattened Device Tree blob at %08lx\n",
438 (long)fdt_addr);
439 }
440 break;
441 default:
442 puts("ERROR: Did not find a cmdline Flattened Device Tree\n");
443 return -ENOENT;
444 }
445 *fdt_addrp = fdt_addr;
446
447 return 0;
448}
449
450/**
Simon Glass44d3a302013-05-08 08:06:00 +0000451 * boot_get_fdt - main fdt handling routine
452 * @argc: command argument count
453 * @argv: command argument list
Simon Glass53f375f2013-05-16 13:53:23 +0000454 * @arch: architecture (IH_ARCH_...)
Simon Glass44d3a302013-05-08 08:06:00 +0000455 * @images: pointer to the bootm images structure
456 * @of_flat_tree: pointer to a char* variable, will hold fdt start address
457 * @of_size: pointer to a ulong variable, will hold fdt length
458 *
459 * boot_get_fdt() is responsible for finding a valid flat device tree image.
Simon Glass4cb35b72021-09-25 19:43:41 -0600460 * Currently supported are the following ramdisk sources:
Simon Glass44d3a302013-05-08 08:06:00 +0000461 * - multicomponent kernel/ramdisk image,
462 * - commandline provided address of decicated ramdisk image.
463 *
464 * returns:
465 * 0, if fdt image was found and valid, or skipped
466 * of_flat_tree and of_size are set to fdt start address and length if
467 * fdt image is found and valid
468 *
469 * 1, if fdt image is found but corrupted
470 * of_flat_tree and of_size are set to 0 if no fdt exists
471 */
Simon Glass09140112020-05-10 11:40:03 -0600472int boot_get_fdt(int flag, int argc, char *const argv[], uint8_t arch,
Simon Glassd9d7c202022-09-06 20:26:50 -0600473 struct bootm_headers *images, char **of_flat_tree, ulong *of_size)
Simon Glass44d3a302013-05-08 08:06:00 +0000474{
Shawn Guo6a7b4062019-01-15 22:26:37 +0800475 ulong img_addr;
Simon Glass44d3a302013-05-08 08:06:00 +0000476 ulong fdt_addr;
477 char *fdt_blob = NULL;
Simon Glass44d3a302013-05-08 08:06:00 +0000478 void *buf;
Simon Glass983c72f2013-06-11 11:14:46 -0700479 const char *select = NULL;
Simon Glass44d3a302013-05-08 08:06:00 +0000480
481 *of_flat_tree = NULL;
482 *of_size = 0;
483
Simon Glass4cb35b72021-09-25 19:43:41 -0600484 img_addr = (argc == 0) ? image_load_addr : hextoul(argv[0], NULL);
Shawn Guo6a7b4062019-01-15 22:26:37 +0800485 buf = map_sysmem(img_addr, 0);
486
Simon Glass983c72f2013-06-11 11:14:46 -0700487 if (argc > 2)
488 select = argv[2];
489 if (select || genimg_has_config(images)) {
Simon Glass4cb35b72021-09-25 19:43:41 -0600490 int ret;
Simon Glassa2198cd2021-09-25 19:43:40 -0600491
Simon Glass4cb35b72021-09-25 19:43:41 -0600492 ret = select_fdt(images, select, arch, &fdt_addr);
493 if (ret == -ENOPKG)
494 goto no_fdt;
495 else if (ret)
496 return 1;
Simon Glass53f375f2013-05-16 13:53:23 +0000497 printf(" Booting using the fdt blob at %#08lx\n", fdt_addr);
498 fdt_blob = map_sysmem(fdt_addr, 0);
Simon Glass44d3a302013-05-08 08:06:00 +0000499 } else if (images->legacy_hdr_valid &&
500 image_check_type(&images->legacy_hdr_os_copy,
501 IH_TYPE_MULTI)) {
502 ulong fdt_data, fdt_len;
503
504 /*
505 * Now check if we have a legacy multi-component image,
506 * get second entry data start address and len.
507 */
508 printf("## Flattened Device Tree from multi component Image at %08lX\n",
509 (ulong)images->legacy_hdr_os);
510
511 image_multi_getimg(images->legacy_hdr_os, 2, &fdt_data,
512 &fdt_len);
513 if (fdt_len) {
514 fdt_blob = (char *)fdt_data;
515 printf(" Booting using the fdt at 0x%p\n", fdt_blob);
516
517 if (fdt_check_header(fdt_blob) != 0) {
518 fdt_error("image is not a fdt");
519 goto error;
520 }
521
522 if (fdt_totalsize(fdt_blob) != fdt_len) {
523 fdt_error("fdt size != image size");
524 goto error;
525 }
526 } else {
527 debug("## No Flattened Device Tree\n");
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800528 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000529 }
Shawn Guo6a7b4062019-01-15 22:26:37 +0800530#ifdef CONFIG_ANDROID_BOOT_IMAGE
531 } else if (genimg_get_format(buf) == IMAGE_FORMAT_ANDROID) {
532 struct andr_img_hdr *hdr = buf;
chenshuo6e314582020-07-20 08:48:15 +0800533 ulong fdt_data, fdt_len;
534 u32 fdt_size, dtb_idx;
535 /*
536 * Firstly check if this android boot image has dtb field.
537 */
538 dtb_idx = (u32)env_get_ulong("adtb_idx", 10, 0);
539 if (android_image_get_dtb_by_index((ulong)hdr, dtb_idx, &fdt_addr, &fdt_size)) {
540 fdt_blob = (char *)map_sysmem(fdt_addr, 0);
541 if (fdt_check_header(fdt_blob))
542 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800543
chenshuo6e314582020-07-20 08:48:15 +0800544 debug("## Using FDT in Android image dtb area with idx %u\n", dtb_idx);
545 } else if (!android_image_get_second(hdr, &fdt_data, &fdt_len) &&
546 !fdt_check_header((char *)fdt_data)) {
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200547 fdt_blob = (char *)fdt_data;
548 if (fdt_totalsize(fdt_blob) != fdt_len)
549 goto error;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800550
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200551 debug("## Using FDT in Android image second area\n");
552 } else {
Eugeniu Rosca62392672019-04-01 12:52:52 +0200553 fdt_addr = env_get_hex("fdtaddr", 0);
554 if (!fdt_addr)
555 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800556
Eugeniu Rosca62392672019-04-01 12:52:52 +0200557 fdt_blob = map_sysmem(fdt_addr, 0);
558 if (fdt_check_header(fdt_blob))
559 goto no_fdt;
Shawn Guo6a7b4062019-01-15 22:26:37 +0800560
Eugeniu Rosca62392672019-04-01 12:52:52 +0200561 debug("## Using FDT at ${fdtaddr}=Ox%lx\n", fdt_addr);
Eugeniu Rosca18b8f2c2019-04-01 12:45:36 +0200562 }
Shawn Guo6a7b4062019-01-15 22:26:37 +0800563#endif
Simon Glass44d3a302013-05-08 08:06:00 +0000564 } else {
565 debug("## No Flattened Device Tree\n");
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800566 goto no_fdt;
Simon Glass44d3a302013-05-08 08:06:00 +0000567 }
568
569 *of_flat_tree = fdt_blob;
570 *of_size = fdt_totalsize(fdt_blob);
571 debug(" of_flat_tree at 0x%08lx size 0x%08lx\n",
572 (ulong)*of_flat_tree, *of_size);
573
574 return 0;
575
Suriyan Ramasami48aead72014-11-27 13:24:16 -0800576no_fdt:
Eugeniu Rosca80281822019-04-01 12:45:35 +0200577 debug("Continuing to boot without FDT\n");
578 return 0;
Simon Glass44d3a302013-05-08 08:06:00 +0000579error:
Simon Glass44d3a302013-05-08 08:06:00 +0000580 return 1;
581}
Simon Glass13d06982013-05-08 08:06:01 +0000582
583/*
584 * Verify the device tree.
585 *
586 * This function is called after all device tree fix-ups have been enacted,
587 * so that the final device tree can be verified. The definition of "verified"
588 * is up to the specific implementation. However, it generally means that the
589 * addresses of some of the devices in the device tree are compared with the
590 * actual addresses at which U-Boot has placed them.
591 *
Bin Menga1875592016-02-05 19:30:11 -0800592 * Returns 1 on success, 0 on failure. If 0 is returned, U-Boot will halt the
Simon Glass13d06982013-05-08 08:06:01 +0000593 * boot process.
594 */
595__weak int ft_verify_fdt(void *fdt)
596{
597 return 1;
598}
599
Alexey Brodkin42803422018-01-24 20:47:09 +0300600__weak int arch_fixup_fdt(void *blob)
601{
602 return 0;
603}
604
Simon Glassd9d7c202022-09-06 20:26:50 -0600605int image_setup_libfdt(struct bootm_headers *images, void *blob,
Simon Glass13d06982013-05-08 08:06:01 +0000606 int of_size, struct lmb *lmb)
607{
608 ulong *initrd_start = &images->initrd_start;
609 ulong *initrd_end = &images->initrd_end;
Simon Glass6f4dbc22014-10-23 18:58:53 -0600610 int ret = -EPERM;
611 int fdt_ret;
Simon Glass13d06982013-05-08 08:06:01 +0000612
Paul Kocialkowski10be5b52015-05-21 11:27:03 +0200613 if (fdt_root(blob) < 0) {
614 printf("ERROR: root node setup failed\n");
615 goto err;
616 }
Masahiro Yamadabc6ed0f2014-04-18 17:41:00 +0900617 if (fdt_chosen(blob) < 0) {
Simon Glass6f4dbc22014-10-23 18:58:53 -0600618 printf("ERROR: /chosen node create failed\n");
619 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000620 }
Ma Haijune29607e2014-07-12 14:24:06 +0100621 if (arch_fixup_fdt(blob) < 0) {
Simon Glass6f4dbc22014-10-23 18:58:53 -0600622 printf("ERROR: arch-specific fdt fixup failed\n");
623 goto err;
Ma Haijune29607e2014-07-12 14:24:06 +0100624 }
Etienne Carriere5f9070a2020-06-05 09:22:54 +0200625
Patrick Delaunaya2535242021-02-08 13:54:31 +0100626 fdt_ret = optee_copy_fdt_nodes(blob);
Etienne Carriere5f9070a2020-06-05 09:22:54 +0200627 if (fdt_ret) {
628 printf("ERROR: transfer of optee nodes to new fdt failed: %s\n",
629 fdt_strerror(fdt_ret));
630 goto err;
631 }
632
Daniel Golle5f2d5912022-04-12 21:00:43 +0100633 /* Store name of configuration node as u-boot,bootconf in /chosen node */
634 if (images->fit_uname_cfg)
635 fdt_find_and_setprop(blob, "/chosen", "u-boot,bootconf",
636 images->fit_uname_cfg,
637 strlen(images->fit_uname_cfg) + 1, 1);
638
Tom Rini26d61192017-04-28 08:51:44 -0400639 /* Update ethernet nodes */
640 fdt_fixup_ethernet(blob);
Frédéric Danis9ea0a1e2020-03-20 10:59:24 +0100641#if CONFIG_IS_ENABLED(CMD_PSTORE)
642 /* Append PStore configuration */
643 fdt_fixup_pstore(blob);
644#endif
Simon Glass30ba2822021-09-25 19:43:26 -0600645 if (IS_ENABLED(CONFIG_OF_BOARD_SETUP)) {
Wasim Khan402558b2021-02-04 15:44:04 +0100646 const char *skip_board_fixup;
647
648 skip_board_fixup = env_get("skip_board_fixup");
649 if (skip_board_fixup && ((int)simple_strtol(skip_board_fixup, NULL, 10) == 1)) {
650 printf("skip board fdt fixup\n");
651 } else {
652 fdt_ret = ft_board_setup(blob, gd->bd);
653 if (fdt_ret) {
654 printf("ERROR: board-specific fdt fixup failed: %s\n",
655 fdt_strerror(fdt_ret));
656 goto err;
657 }
Simon Glass6f4dbc22014-10-23 18:58:53 -0600658 }
659 }
Simon Glass3ac0f502021-09-25 19:43:27 -0600660 if (IS_ENABLED(CONFIG_OF_SYSTEM_SETUP)) {
Max Krummenacherd89212b2015-08-05 17:17:03 +0200661 fdt_ret = ft_system_setup(blob, gd->bd);
662 if (fdt_ret) {
Simon Glassc654b512014-10-23 18:58:54 -0600663 printf("ERROR: system-specific fdt fixup failed: %s\n",
664 fdt_strerror(fdt_ret));
665 goto err;
666 }
667 }
Simon Glass33ba7272022-10-11 09:47:15 -0600668 if (!of_live_active() && CONFIG_IS_ENABLED(EVENT)) {
Simon Glass98887ab2022-07-30 15:52:31 -0600669 struct event_ft_fixup fixup;
670
Simon Glass33ba7272022-10-11 09:47:15 -0600671 fixup.tree = oftree_from_fdt(blob);
Simon Glassb215b602022-09-06 20:26:58 -0600672 fixup.images = images;
Simon Glass33ba7272022-10-11 09:47:15 -0600673 if (oftree_valid(fixup.tree)) {
674 ret = event_notify(EVT_FT_FIXUP, &fixup, sizeof(fixup));
675 if (ret) {
676 printf("ERROR: fdt fixup event failed: %d\n",
677 ret);
678 goto err;
679 }
Simon Glass98887ab2022-07-30 15:52:31 -0600680 }
681 }
Simon Glass13d06982013-05-08 08:06:01 +0000682
683 /* Delete the old LMB reservation */
Alexander Grafdea21742016-03-04 01:10:13 +0100684 if (lmb)
685 lmb_free(lmb, (phys_addr_t)(u32)(uintptr_t)blob,
686 (phys_size_t)fdt_totalsize(blob));
Simon Glass13d06982013-05-08 08:06:01 +0000687
Hannes Schmelzeref476832016-09-20 18:10:43 +0200688 ret = fdt_shrink_to_minimum(blob, 0);
Simon Glass13d06982013-05-08 08:06:01 +0000689 if (ret < 0)
Simon Glass6f4dbc22014-10-23 18:58:53 -0600690 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000691 of_size = ret;
692
693 if (*initrd_start && *initrd_end) {
694 of_size += FDT_RAMDISK_OVERHEAD;
695 fdt_set_totalsize(blob, of_size);
696 }
697 /* Create a new LMB reservation */
Alexander Grafdea21742016-03-04 01:10:13 +0100698 if (lmb)
699 lmb_reserve(lmb, (ulong)blob, of_size);
Simon Glass13d06982013-05-08 08:06:01 +0000700
Masahiro Yamadadbe963a2014-04-18 17:40:59 +0900701 fdt_initrd(blob, *initrd_start, *initrd_end);
Simon Glass13d06982013-05-08 08:06:01 +0000702 if (!ft_verify_fdt(blob))
Simon Glass6f4dbc22014-10-23 18:58:53 -0600703 goto err;
Simon Glass13d06982013-05-08 08:06:01 +0000704
Tom Rinif899cc12021-09-12 20:32:32 -0400705#if defined(CONFIG_ARCH_KEYSTONE)
Simon Glass30ba2822021-09-25 19:43:26 -0600706 if (IS_ENABLED(CONFIG_OF_BOARD_SETUP))
Vitaly Andrianov00c200f2014-04-04 13:16:47 -0400707 ft_board_setup_ex(blob, gd->bd);
708#endif
709
Simon Glass13d06982013-05-08 08:06:01 +0000710 return 0;
Simon Glass6f4dbc22014-10-23 18:58:53 -0600711err:
712 printf(" - must RESET the board to recover.\n\n");
713
714 return ret;
Simon Glass13d06982013-05-08 08:06:01 +0000715}