Commit | Line | Data |
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12869ecd | 1 | // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) |
1cade994 DG |
2 | /* |
3 | * libfdt - Flat Device Tree manipulation | |
4 | * Copyright (C) 2006 David Gibson, IBM Corporation. | |
1cade994 DG |
5 | */ |
6 | #include "libfdt_env.h" | |
7 | ||
8 | #include <fdt.h> | |
9 | #include <libfdt.h> | |
10 | ||
11 | #include "libfdt_internal.h" | |
12 | ||
9130ba88 RH |
13 | static int fdt_blocks_misordered_(const void *fdt, |
14 | int mem_rsv_size, int struct_size) | |
1cade994 | 15 | { |
ed95d745 | 16 | return (fdt_off_mem_rsvmap(fdt) < FDT_ALIGN(sizeof(struct fdt_header), 8)) |
1cade994 DG |
17 | || (fdt_off_dt_struct(fdt) < |
18 | (fdt_off_mem_rsvmap(fdt) + mem_rsv_size)) | |
19 | || (fdt_off_dt_strings(fdt) < | |
20 | (fdt_off_dt_struct(fdt) + struct_size)) | |
21 | || (fdt_totalsize(fdt) < | |
22 | (fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt))); | |
23 | } | |
24 | ||
f858927f | 25 | static int fdt_rw_probe_(void *fdt) |
1cade994 | 26 | { |
d047cd8a RH |
27 | if (can_assume(VALID_DTB)) |
28 | return 0; | |
f858927f | 29 | FDT_RO_PROBE(fdt); |
1cade994 | 30 | |
d047cd8a | 31 | if (!can_assume(LATEST) && fdt_version(fdt) < 17) |
1cade994 | 32 | return -FDT_ERR_BADVERSION; |
9130ba88 | 33 | if (fdt_blocks_misordered_(fdt, sizeof(struct fdt_reserve_entry), |
ed95d745 | 34 | fdt_size_dt_struct(fdt))) |
1cade994 | 35 | return -FDT_ERR_BADLAYOUT; |
d047cd8a | 36 | if (!can_assume(LATEST) && fdt_version(fdt) > 17) |
1cade994 DG |
37 | fdt_set_version(fdt, 17); |
38 | ||
39 | return 0; | |
40 | } | |
41 | ||
f858927f | 42 | #define FDT_RW_PROBE(fdt) \ |
1cade994 | 43 | { \ |
9130ba88 | 44 | int err_; \ |
f858927f | 45 | if ((err_ = fdt_rw_probe_(fdt)) != 0) \ |
9130ba88 | 46 | return err_; \ |
1cade994 DG |
47 | } |
48 | ||
d047cd8a | 49 | static inline unsigned int fdt_data_size_(void *fdt) |
1cade994 DG |
50 | { |
51 | return fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt); | |
52 | } | |
53 | ||
9130ba88 | 54 | static int fdt_splice_(void *fdt, void *splicepoint, int oldlen, int newlen) |
1cade994 | 55 | { |
ed95d745 | 56 | char *p = splicepoint; |
d047cd8a RH |
57 | unsigned int dsize = fdt_data_size_(fdt); |
58 | size_t soff = p - (char *)fdt; | |
1cade994 | 59 | |
d047cd8a | 60 | if ((oldlen < 0) || (soff + oldlen < soff) || (soff + oldlen > dsize)) |
1cade994 | 61 | return -FDT_ERR_BADOFFSET; |
6e9c9686 | 62 | if ((p < (char *)fdt) || (dsize + newlen < (unsigned)oldlen)) |
91feabc2 | 63 | return -FDT_ERR_BADOFFSET; |
d047cd8a | 64 | if (dsize - oldlen + newlen > fdt_totalsize(fdt)) |
1cade994 | 65 | return -FDT_ERR_NOSPACE; |
d047cd8a | 66 | memmove(p + newlen, p + oldlen, ((char *)fdt + dsize) - (p + oldlen)); |
1cade994 DG |
67 | return 0; |
68 | } | |
69 | ||
9130ba88 | 70 | static int fdt_splice_mem_rsv_(void *fdt, struct fdt_reserve_entry *p, |
ed95d745 | 71 | int oldn, int newn) |
1cade994 DG |
72 | { |
73 | int delta = (newn - oldn) * sizeof(*p); | |
74 | int err; | |
9130ba88 | 75 | err = fdt_splice_(fdt, p, oldn * sizeof(*p), newn * sizeof(*p)); |
1cade994 DG |
76 | if (err) |
77 | return err; | |
78 | fdt_set_off_dt_struct(fdt, fdt_off_dt_struct(fdt) + delta); | |
79 | fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta); | |
80 | return 0; | |
81 | } | |
82 | ||
9130ba88 | 83 | static int fdt_splice_struct_(void *fdt, void *p, |
ed95d745 | 84 | int oldlen, int newlen) |
1cade994 DG |
85 | { |
86 | int delta = newlen - oldlen; | |
87 | int err; | |
88 | ||
9130ba88 | 89 | if ((err = fdt_splice_(fdt, p, oldlen, newlen))) |
1cade994 DG |
90 | return err; |
91 | ||
92 | fdt_set_size_dt_struct(fdt, fdt_size_dt_struct(fdt) + delta); | |
93 | fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta); | |
94 | return 0; | |
95 | } | |
96 | ||
9bb9c6a1 RH |
97 | /* Must only be used to roll back in case of error */ |
98 | static void fdt_del_last_string_(void *fdt, const char *s) | |
99 | { | |
100 | int newlen = strlen(s) + 1; | |
101 | ||
102 | fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) - newlen); | |
103 | } | |
104 | ||
9130ba88 | 105 | static int fdt_splice_string_(void *fdt, int newlen) |
1cade994 | 106 | { |
ed95d745 DG |
107 | void *p = (char *)fdt |
108 | + fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt); | |
1cade994 DG |
109 | int err; |
110 | ||
9130ba88 | 111 | if ((err = fdt_splice_(fdt, p, 0, newlen))) |
1cade994 DG |
112 | return err; |
113 | ||
114 | fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) + newlen); | |
115 | return 0; | |
116 | } | |
117 | ||
d047cd8a RH |
118 | /** |
119 | * fdt_find_add_string_() - Find or allocate a string | |
120 | * | |
121 | * @fdt: pointer to the device tree to check/adjust | |
122 | * @s: string to find/add | |
123 | * @allocated: Set to 0 if the string was found, 1 if not found and so | |
124 | * allocated. Ignored if can_assume(NO_ROLLBACK) | |
125 | * @return offset of string in the string table (whether found or added) | |
126 | */ | |
9bb9c6a1 | 127 | static int fdt_find_add_string_(void *fdt, const char *s, int *allocated) |
1cade994 DG |
128 | { |
129 | char *strtab = (char *)fdt + fdt_off_dt_strings(fdt); | |
130 | const char *p; | |
131 | char *new; | |
132 | int len = strlen(s) + 1; | |
133 | int err; | |
134 | ||
d047cd8a RH |
135 | if (!can_assume(NO_ROLLBACK)) |
136 | *allocated = 0; | |
9bb9c6a1 | 137 | |
9130ba88 | 138 | p = fdt_find_string_(strtab, fdt_size_dt_strings(fdt), s); |
1cade994 DG |
139 | if (p) |
140 | /* found it */ | |
141 | return (p - strtab); | |
142 | ||
143 | new = strtab + fdt_size_dt_strings(fdt); | |
9130ba88 | 144 | err = fdt_splice_string_(fdt, len); |
1cade994 DG |
145 | if (err) |
146 | return err; | |
147 | ||
d047cd8a RH |
148 | if (!can_assume(NO_ROLLBACK)) |
149 | *allocated = 1; | |
9bb9c6a1 | 150 | |
1cade994 DG |
151 | memcpy(new, s, len); |
152 | return (new - strtab); | |
153 | } | |
154 | ||
155 | int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size) | |
156 | { | |
157 | struct fdt_reserve_entry *re; | |
158 | int err; | |
159 | ||
f858927f | 160 | FDT_RW_PROBE(fdt); |
1cade994 | 161 | |
9130ba88 RH |
162 | re = fdt_mem_rsv_w_(fdt, fdt_num_mem_rsv(fdt)); |
163 | err = fdt_splice_mem_rsv_(fdt, re, 0, 1); | |
1cade994 DG |
164 | if (err) |
165 | return err; | |
166 | ||
167 | re->address = cpu_to_fdt64(address); | |
168 | re->size = cpu_to_fdt64(size); | |
169 | return 0; | |
170 | } | |
171 | ||
172 | int fdt_del_mem_rsv(void *fdt, int n) | |
173 | { | |
9130ba88 | 174 | struct fdt_reserve_entry *re = fdt_mem_rsv_w_(fdt, n); |
1cade994 | 175 | |
f858927f | 176 | FDT_RW_PROBE(fdt); |
ed95d745 | 177 | |
1cade994 DG |
178 | if (n >= fdt_num_mem_rsv(fdt)) |
179 | return -FDT_ERR_NOTFOUND; | |
180 | ||
9130ba88 | 181 | return fdt_splice_mem_rsv_(fdt, re, 1, 0); |
1cade994 DG |
182 | } |
183 | ||
9130ba88 | 184 | static int fdt_resize_property_(void *fdt, int nodeoffset, const char *name, |
ed95d745 | 185 | int len, struct fdt_property **prop) |
1cade994 DG |
186 | { |
187 | int oldlen; | |
188 | int err; | |
189 | ||
190 | *prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen); | |
4201d057 | 191 | if (!*prop) |
1cade994 DG |
192 | return oldlen; |
193 | ||
9130ba88 | 194 | if ((err = fdt_splice_struct_(fdt, (*prop)->data, FDT_TAGALIGN(oldlen), |
ed95d745 | 195 | FDT_TAGALIGN(len)))) |
1cade994 DG |
196 | return err; |
197 | ||
198 | (*prop)->len = cpu_to_fdt32(len); | |
199 | return 0; | |
200 | } | |
201 | ||
9130ba88 | 202 | static int fdt_add_property_(void *fdt, int nodeoffset, const char *name, |
ed95d745 | 203 | int len, struct fdt_property **prop) |
1cade994 | 204 | { |
1cade994 DG |
205 | int proplen; |
206 | int nextoffset; | |
207 | int namestroff; | |
208 | int err; | |
9bb9c6a1 | 209 | int allocated; |
1cade994 | 210 | |
9130ba88 | 211 | if ((nextoffset = fdt_check_node_offset_(fdt, nodeoffset)) < 0) |
ed95d745 | 212 | return nextoffset; |
1cade994 | 213 | |
9bb9c6a1 | 214 | namestroff = fdt_find_add_string_(fdt, name, &allocated); |
1cade994 DG |
215 | if (namestroff < 0) |
216 | return namestroff; | |
217 | ||
9130ba88 | 218 | *prop = fdt_offset_ptr_w_(fdt, nextoffset); |
ed95d745 | 219 | proplen = sizeof(**prop) + FDT_TAGALIGN(len); |
1cade994 | 220 | |
9130ba88 | 221 | err = fdt_splice_struct_(fdt, *prop, 0, proplen); |
9bb9c6a1 | 222 | if (err) { |
d047cd8a RH |
223 | /* Delete the string if we failed to add it */ |
224 | if (!can_assume(NO_ROLLBACK) && allocated) | |
9bb9c6a1 | 225 | fdt_del_last_string_(fdt, name); |
1cade994 | 226 | return err; |
9bb9c6a1 | 227 | } |
1cade994 DG |
228 | |
229 | (*prop)->tag = cpu_to_fdt32(FDT_PROP); | |
230 | (*prop)->nameoff = cpu_to_fdt32(namestroff); | |
231 | (*prop)->len = cpu_to_fdt32(len); | |
232 | return 0; | |
233 | } | |
234 | ||
ed95d745 DG |
235 | int fdt_set_name(void *fdt, int nodeoffset, const char *name) |
236 | { | |
237 | char *namep; | |
238 | int oldlen, newlen; | |
239 | int err; | |
240 | ||
f858927f | 241 | FDT_RW_PROBE(fdt); |
ed95d745 DG |
242 | |
243 | namep = (char *)(uintptr_t)fdt_get_name(fdt, nodeoffset, &oldlen); | |
244 | if (!namep) | |
245 | return oldlen; | |
246 | ||
247 | newlen = strlen(name); | |
248 | ||
9130ba88 | 249 | err = fdt_splice_struct_(fdt, namep, FDT_TAGALIGN(oldlen+1), |
ed95d745 DG |
250 | FDT_TAGALIGN(newlen+1)); |
251 | if (err) | |
252 | return err; | |
253 | ||
254 | memcpy(namep, name, newlen+1); | |
255 | return 0; | |
256 | } | |
257 | ||
4201d057 RH |
258 | int fdt_setprop_placeholder(void *fdt, int nodeoffset, const char *name, |
259 | int len, void **prop_data) | |
1cade994 DG |
260 | { |
261 | struct fdt_property *prop; | |
262 | int err; | |
263 | ||
f858927f | 264 | FDT_RW_PROBE(fdt); |
1cade994 | 265 | |
9130ba88 | 266 | err = fdt_resize_property_(fdt, nodeoffset, name, len, &prop); |
1cade994 | 267 | if (err == -FDT_ERR_NOTFOUND) |
9130ba88 | 268 | err = fdt_add_property_(fdt, nodeoffset, name, len, &prop); |
1cade994 DG |
269 | if (err) |
270 | return err; | |
271 | ||
4201d057 RH |
272 | *prop_data = prop->data; |
273 | return 0; | |
274 | } | |
275 | ||
276 | int fdt_setprop(void *fdt, int nodeoffset, const char *name, | |
277 | const void *val, int len) | |
278 | { | |
279 | void *prop_data; | |
280 | int err; | |
281 | ||
282 | err = fdt_setprop_placeholder(fdt, nodeoffset, name, len, &prop_data); | |
283 | if (err) | |
284 | return err; | |
285 | ||
89d12310 | 286 | if (len) |
4201d057 | 287 | memcpy(prop_data, val, len); |
1cade994 DG |
288 | return 0; |
289 | } | |
290 | ||
cd296721 SW |
291 | int fdt_appendprop(void *fdt, int nodeoffset, const char *name, |
292 | const void *val, int len) | |
293 | { | |
294 | struct fdt_property *prop; | |
295 | int err, oldlen, newlen; | |
296 | ||
f858927f | 297 | FDT_RW_PROBE(fdt); |
cd296721 SW |
298 | |
299 | prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen); | |
300 | if (prop) { | |
301 | newlen = len + oldlen; | |
9130ba88 | 302 | err = fdt_splice_struct_(fdt, prop->data, |
cd296721 SW |
303 | FDT_TAGALIGN(oldlen), |
304 | FDT_TAGALIGN(newlen)); | |
305 | if (err) | |
306 | return err; | |
307 | prop->len = cpu_to_fdt32(newlen); | |
308 | memcpy(prop->data + oldlen, val, len); | |
309 | } else { | |
9130ba88 | 310 | err = fdt_add_property_(fdt, nodeoffset, name, len, &prop); |
cd296721 SW |
311 | if (err) |
312 | return err; | |
313 | memcpy(prop->data, val, len); | |
314 | } | |
315 | return 0; | |
316 | } | |
317 | ||
1cade994 DG |
318 | int fdt_delprop(void *fdt, int nodeoffset, const char *name) |
319 | { | |
320 | struct fdt_property *prop; | |
321 | int len, proplen; | |
322 | ||
f858927f | 323 | FDT_RW_PROBE(fdt); |
1cade994 DG |
324 | |
325 | prop = fdt_get_property_w(fdt, nodeoffset, name, &len); | |
4201d057 | 326 | if (!prop) |
1cade994 DG |
327 | return len; |
328 | ||
ed95d745 | 329 | proplen = sizeof(*prop) + FDT_TAGALIGN(len); |
9130ba88 | 330 | return fdt_splice_struct_(fdt, prop, proplen, 0); |
1cade994 DG |
331 | } |
332 | ||
333 | int fdt_add_subnode_namelen(void *fdt, int parentoffset, | |
334 | const char *name, int namelen) | |
335 | { | |
336 | struct fdt_node_header *nh; | |
337 | int offset, nextoffset; | |
338 | int nodelen; | |
339 | int err; | |
340 | uint32_t tag; | |
47605971 | 341 | fdt32_t *endtag; |
1cade994 | 342 | |
f858927f | 343 | FDT_RW_PROBE(fdt); |
1cade994 DG |
344 | |
345 | offset = fdt_subnode_offset_namelen(fdt, parentoffset, name, namelen); | |
346 | if (offset >= 0) | |
347 | return -FDT_ERR_EXISTS; | |
348 | else if (offset != -FDT_ERR_NOTFOUND) | |
349 | return offset; | |
350 | ||
351 | /* Try to place the new node after the parent's properties */ | |
a77725a9 RH |
352 | tag = fdt_next_tag(fdt, parentoffset, &nextoffset); |
353 | /* the fdt_subnode_offset_namelen() should ensure this never hits */ | |
354 | if (!can_assume(LIBFDT_FLAWLESS) && (tag != FDT_BEGIN_NODE)) | |
355 | return -FDT_ERR_INTERNAL; | |
1cade994 DG |
356 | do { |
357 | offset = nextoffset; | |
358 | tag = fdt_next_tag(fdt, offset, &nextoffset); | |
ed95d745 | 359 | } while ((tag == FDT_PROP) || (tag == FDT_NOP)); |
1cade994 | 360 | |
9130ba88 | 361 | nh = fdt_offset_ptr_w_(fdt, offset); |
ed95d745 | 362 | nodelen = sizeof(*nh) + FDT_TAGALIGN(namelen+1) + FDT_TAGSIZE; |
1cade994 | 363 | |
9130ba88 | 364 | err = fdt_splice_struct_(fdt, nh, 0, nodelen); |
1cade994 DG |
365 | if (err) |
366 | return err; | |
367 | ||
368 | nh->tag = cpu_to_fdt32(FDT_BEGIN_NODE); | |
ed95d745 | 369 | memset(nh->name, 0, FDT_TAGALIGN(namelen+1)); |
1cade994 | 370 | memcpy(nh->name, name, namelen); |
47605971 | 371 | endtag = (fdt32_t *)((char *)nh + nodelen - FDT_TAGSIZE); |
1cade994 DG |
372 | *endtag = cpu_to_fdt32(FDT_END_NODE); |
373 | ||
374 | return offset; | |
375 | } | |
376 | ||
377 | int fdt_add_subnode(void *fdt, int parentoffset, const char *name) | |
378 | { | |
379 | return fdt_add_subnode_namelen(fdt, parentoffset, name, strlen(name)); | |
380 | } | |
381 | ||
382 | int fdt_del_node(void *fdt, int nodeoffset) | |
383 | { | |
384 | int endoffset; | |
385 | ||
f858927f | 386 | FDT_RW_PROBE(fdt); |
1cade994 | 387 | |
9130ba88 | 388 | endoffset = fdt_node_end_offset_(fdt, nodeoffset); |
1cade994 DG |
389 | if (endoffset < 0) |
390 | return endoffset; | |
391 | ||
9130ba88 | 392 | return fdt_splice_struct_(fdt, fdt_offset_ptr_w_(fdt, nodeoffset), |
ed95d745 | 393 | endoffset - nodeoffset, 0); |
1cade994 DG |
394 | } |
395 | ||
9130ba88 | 396 | static void fdt_packblocks_(const char *old, char *new, |
a77725a9 RH |
397 | int mem_rsv_size, |
398 | int struct_size, | |
399 | int strings_size) | |
1cade994 DG |
400 | { |
401 | int mem_rsv_off, struct_off, strings_off; | |
402 | ||
ed95d745 | 403 | mem_rsv_off = FDT_ALIGN(sizeof(struct fdt_header), 8); |
1cade994 DG |
404 | struct_off = mem_rsv_off + mem_rsv_size; |
405 | strings_off = struct_off + struct_size; | |
406 | ||
ed95d745 DG |
407 | memmove(new + mem_rsv_off, old + fdt_off_mem_rsvmap(old), mem_rsv_size); |
408 | fdt_set_off_mem_rsvmap(new, mem_rsv_off); | |
1cade994 | 409 | |
ed95d745 DG |
410 | memmove(new + struct_off, old + fdt_off_dt_struct(old), struct_size); |
411 | fdt_set_off_dt_struct(new, struct_off); | |
412 | fdt_set_size_dt_struct(new, struct_size); | |
1cade994 | 413 | |
a77725a9 | 414 | memmove(new + strings_off, old + fdt_off_dt_strings(old), strings_size); |
ed95d745 DG |
415 | fdt_set_off_dt_strings(new, strings_off); |
416 | fdt_set_size_dt_strings(new, fdt_size_dt_strings(old)); | |
1cade994 DG |
417 | } |
418 | ||
419 | int fdt_open_into(const void *fdt, void *buf, int bufsize) | |
420 | { | |
421 | int err; | |
422 | int mem_rsv_size, struct_size; | |
423 | int newsize; | |
ed95d745 DG |
424 | const char *fdtstart = fdt; |
425 | const char *fdtend = fdtstart + fdt_totalsize(fdt); | |
426 | char *tmp; | |
1cade994 | 427 | |
f858927f | 428 | FDT_RO_PROBE(fdt); |
1cade994 DG |
429 | |
430 | mem_rsv_size = (fdt_num_mem_rsv(fdt)+1) | |
431 | * sizeof(struct fdt_reserve_entry); | |
432 | ||
d047cd8a | 433 | if (can_assume(LATEST) || fdt_version(fdt) >= 17) { |
1cade994 | 434 | struct_size = fdt_size_dt_struct(fdt); |
79edff12 | 435 | } else if (fdt_version(fdt) == 16) { |
1cade994 DG |
436 | struct_size = 0; |
437 | while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END) | |
438 | ; | |
cd296721 SW |
439 | if (struct_size < 0) |
440 | return struct_size; | |
79edff12 RH |
441 | } else { |
442 | return -FDT_ERR_BADVERSION; | |
1cade994 DG |
443 | } |
444 | ||
3eb619b2 | 445 | if (can_assume(LIBFDT_ORDER) || |
d047cd8a | 446 | !fdt_blocks_misordered_(fdt, mem_rsv_size, struct_size)) { |
1cade994 DG |
447 | /* no further work necessary */ |
448 | err = fdt_move(fdt, buf, bufsize); | |
449 | if (err) | |
450 | return err; | |
451 | fdt_set_version(buf, 17); | |
452 | fdt_set_size_dt_struct(buf, struct_size); | |
453 | fdt_set_totalsize(buf, bufsize); | |
454 | return 0; | |
455 | } | |
456 | ||
457 | /* Need to reorder */ | |
ed95d745 | 458 | newsize = FDT_ALIGN(sizeof(struct fdt_header), 8) + mem_rsv_size |
1cade994 DG |
459 | + struct_size + fdt_size_dt_strings(fdt); |
460 | ||
461 | if (bufsize < newsize) | |
462 | return -FDT_ERR_NOSPACE; | |
463 | ||
ed95d745 DG |
464 | /* First attempt to build converted tree at beginning of buffer */ |
465 | tmp = buf; | |
466 | /* But if that overlaps with the old tree... */ | |
467 | if (((tmp + newsize) > fdtstart) && (tmp < fdtend)) { | |
468 | /* Try right after the old tree instead */ | |
469 | tmp = (char *)(uintptr_t)fdtend; | |
470 | if ((tmp + newsize) > ((char *)buf + bufsize)) | |
1cade994 DG |
471 | return -FDT_ERR_NOSPACE; |
472 | } | |
473 | ||
a77725a9 RH |
474 | fdt_packblocks_(fdt, tmp, mem_rsv_size, struct_size, |
475 | fdt_size_dt_strings(fdt)); | |
1cade994 DG |
476 | memmove(buf, tmp, newsize); |
477 | ||
478 | fdt_set_magic(buf, FDT_MAGIC); | |
479 | fdt_set_totalsize(buf, bufsize); | |
480 | fdt_set_version(buf, 17); | |
481 | fdt_set_last_comp_version(buf, 16); | |
482 | fdt_set_boot_cpuid_phys(buf, fdt_boot_cpuid_phys(fdt)); | |
483 | ||
484 | return 0; | |
485 | } | |
486 | ||
487 | int fdt_pack(void *fdt) | |
488 | { | |
489 | int mem_rsv_size; | |
1cade994 | 490 | |
f858927f | 491 | FDT_RW_PROBE(fdt); |
1cade994 DG |
492 | |
493 | mem_rsv_size = (fdt_num_mem_rsv(fdt)+1) | |
494 | * sizeof(struct fdt_reserve_entry); | |
a77725a9 RH |
495 | fdt_packblocks_(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt), |
496 | fdt_size_dt_strings(fdt)); | |
9130ba88 | 497 | fdt_set_totalsize(fdt, fdt_data_size_(fdt)); |
1cade994 DG |
498 | |
499 | return 0; | |
500 | } |