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Commit | Line | Data |
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781e09ee GVB |
1 | /* |
2 | * (C) Copyright 2007 | |
3 | * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com | |
4 | * Based on code written by: | |
5 | * Pantelis Antoniou <pantelis.antoniou@gmail.com> and | |
6 | * Matthew McClintock <msm@freescale.com> | |
7 | * | |
1a459660 | 8 | * SPDX-License-Identifier: GPL-2.0+ |
781e09ee GVB |
9 | */ |
10 | ||
11 | #include <common.h> | |
12 | #include <command.h> | |
13 | #include <linux/ctype.h> | |
14 | #include <linux/types.h> | |
781e09ee | 15 | #include <asm/global_data.h> |
781e09ee | 16 | #include <libfdt.h> |
64dbbd40 | 17 | #include <fdt_support.h> |
0eb25b61 | 18 | #include <mapmem.h> |
a92fd657 | 19 | #include <asm/io.h> |
781e09ee GVB |
20 | |
21 | #define MAX_LEVEL 32 /* how deeply nested we will go */ | |
fd61e55d | 22 | #define SCRATCHPAD 1024 /* bytes of scratchpad memory */ |
5d927b42 | 23 | #define CMD_FDT_MAX_DUMP 64 |
781e09ee GVB |
24 | |
25 | /* | |
26 | * Global data (for the gd->bd) | |
27 | */ | |
28 | DECLARE_GLOBAL_DATA_PTR; | |
29 | ||
d14da913 | 30 | static int fdt_valid(struct fdt_header **blobp); |
54841ab5 | 31 | static int fdt_parse_prop(char *const*newval, int count, char *data, int *len); |
dbaf07ce | 32 | static int fdt_print(const char *pathp, char *prop, int depth); |
bc80295b | 33 | static int is_printable_string(const void *data, int len); |
781e09ee | 34 | |
ae9e97fa GVB |
35 | /* |
36 | * The working_fdt points to our working flattened device tree. | |
37 | */ | |
38 | struct fdt_header *working_fdt; | |
39 | ||
90fbee3e | 40 | void set_working_fdt_addr(ulong addr) |
54f9c866 | 41 | { |
a92fd657 SG |
42 | void *buf; |
43 | ||
90fbee3e | 44 | buf = map_sysmem(addr, 0); |
a92fd657 | 45 | working_fdt = buf; |
018f5303 | 46 | env_set_hex("fdtaddr", addr); |
54f9c866 KG |
47 | } |
48 | ||
bc80295b JH |
49 | /* |
50 | * Get a value from the fdt and format it to be set in the environment | |
51 | */ | |
382bee57 | 52 | static int fdt_value_env_set(const void *nodep, int len, const char *var) |
bc80295b JH |
53 | { |
54 | if (is_printable_string(nodep, len)) | |
382bee57 | 55 | env_set(var, (void *)nodep); |
bc80295b JH |
56 | else if (len == 4) { |
57 | char buf[11]; | |
58 | ||
b05bf6c7 | 59 | sprintf(buf, "0x%08X", fdt32_to_cpu(*(fdt32_t *)nodep)); |
382bee57 | 60 | env_set(var, buf); |
bc80295b JH |
61 | } else if (len%4 == 0 && len <= 20) { |
62 | /* Needed to print things like sha1 hashes. */ | |
63 | char buf[41]; | |
64 | int i; | |
65 | ||
66 | for (i = 0; i < len; i += sizeof(unsigned int)) | |
67 | sprintf(buf + (i * 2), "%08x", | |
68 | *(unsigned int *)(nodep + i)); | |
382bee57 | 69 | env_set(var, buf); |
bc80295b JH |
70 | } else { |
71 | printf("error: unprintable value\n"); | |
72 | return 1; | |
73 | } | |
74 | return 0; | |
75 | } | |
76 | ||
781e09ee GVB |
77 | /* |
78 | * Flattened Device Tree command, see the help for parameter definitions. | |
79 | */ | |
088f1b19 | 80 | static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
781e09ee | 81 | { |
47e26b1b | 82 | if (argc < 2) |
4c12eeb8 | 83 | return CMD_RET_USAGE; |
781e09ee | 84 | |
47e26b1b | 85 | /* |
781e09ee | 86 | * Set the address of the fdt |
47e26b1b | 87 | */ |
f0ed68e2 | 88 | if (strncmp(argv[1], "ad", 2) == 0) { |
54f9c866 | 89 | unsigned long addr; |
4b578655 SG |
90 | int control = 0; |
91 | struct fdt_header *blob; | |
781e09ee GVB |
92 | /* |
93 | * Set the address [and length] of the fdt. | |
94 | */ | |
4b578655 SG |
95 | argc -= 2; |
96 | argv += 2; | |
97 | /* Temporary #ifdef - some archs don't have fdt_blob yet */ | |
98 | #ifdef CONFIG_OF_CONTROL | |
99 | if (argc && !strcmp(*argv, "-c")) { | |
100 | control = 1; | |
101 | argc--; | |
102 | argv++; | |
103 | } | |
104 | #endif | |
105 | if (argc == 0) { | |
106 | if (control) | |
107 | blob = (struct fdt_header *)gd->fdt_blob; | |
108 | else | |
109 | blob = working_fdt; | |
110 | if (!blob || !fdt_valid(&blob)) | |
7dbc38ad | 111 | return 1; |
4b578655 | 112 | printf("The address of the fdt is %#08lx\n", |
c71a0164 | 113 | control ? (ulong)map_to_sysmem(blob) : |
bfebc8c9 | 114 | env_get_hex("fdtaddr", 0)); |
7dbc38ad KG |
115 | return 0; |
116 | } | |
117 | ||
4b578655 | 118 | addr = simple_strtoul(argv[0], NULL, 16); |
a92fd657 | 119 | blob = map_sysmem(addr, 0); |
4b578655 | 120 | if (!fdt_valid(&blob)) |
781e09ee | 121 | return 1; |
4b578655 SG |
122 | if (control) |
123 | gd->fdt_blob = blob; | |
124 | else | |
90fbee3e | 125 | set_working_fdt_addr(addr); |
781e09ee | 126 | |
4b578655 | 127 | if (argc >= 2) { |
781e09ee GVB |
128 | int len; |
129 | int err; | |
130 | /* | |
131 | * Optional new length | |
132 | */ | |
4b578655 SG |
133 | len = simple_strtoul(argv[1], NULL, 16); |
134 | if (len < fdt_totalsize(blob)) { | |
addd8ce8 GVB |
135 | printf ("New length %d < existing length %d, " |
136 | "ignoring.\n", | |
4b578655 | 137 | len, fdt_totalsize(blob)); |
781e09ee GVB |
138 | } else { |
139 | /* | |
140 | * Open in place with a new length. | |
141 | */ | |
4b578655 | 142 | err = fdt_open_into(blob, blob, len); |
781e09ee | 143 | if (err != 0) { |
addd8ce8 GVB |
144 | printf ("libfdt fdt_open_into(): %s\n", |
145 | fdt_strerror(err)); | |
781e09ee GVB |
146 | } |
147 | } | |
148 | } | |
149 | ||
e02c9458 MV |
150 | return CMD_RET_SUCCESS; |
151 | } | |
152 | ||
153 | if (!working_fdt) { | |
154 | puts( | |
155 | "No FDT memory address configured. Please configure\n" | |
156 | "the FDT address via \"fdt addr <address>\" command.\n" | |
157 | "Aborting!\n"); | |
158 | return CMD_RET_FAILURE; | |
159 | } | |
160 | ||
47e26b1b | 161 | /* |
e489b9c0 | 162 | * Move the working_fdt |
47e26b1b | 163 | */ |
e02c9458 | 164 | if (strncmp(argv[1], "mo", 2) == 0) { |
781e09ee GVB |
165 | struct fdt_header *newaddr; |
166 | int len; | |
167 | int err; | |
168 | ||
47e26b1b | 169 | if (argc < 4) |
4c12eeb8 | 170 | return CMD_RET_USAGE; |
781e09ee GVB |
171 | |
172 | /* | |
173 | * Set the address and length of the fdt. | |
174 | */ | |
e489b9c0 | 175 | working_fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16); |
d14da913 | 176 | if (!fdt_valid(&working_fdt)) |
781e09ee | 177 | return 1; |
781e09ee | 178 | |
addd8ce8 | 179 | newaddr = (struct fdt_header *)simple_strtoul(argv[3],NULL,16); |
6be07cc1 GVB |
180 | |
181 | /* | |
182 | * If the user specifies a length, use that. Otherwise use the | |
183 | * current length. | |
184 | */ | |
185 | if (argc <= 4) { | |
e489b9c0 | 186 | len = fdt_totalsize(working_fdt); |
6be07cc1 GVB |
187 | } else { |
188 | len = simple_strtoul(argv[4], NULL, 16); | |
e489b9c0 | 189 | if (len < fdt_totalsize(working_fdt)) { |
addd8ce8 GVB |
190 | printf ("New length 0x%X < existing length " |
191 | "0x%X, aborting.\n", | |
e489b9c0 | 192 | len, fdt_totalsize(working_fdt)); |
6be07cc1 GVB |
193 | return 1; |
194 | } | |
781e09ee GVB |
195 | } |
196 | ||
197 | /* | |
198 | * Copy to the new location. | |
199 | */ | |
e489b9c0 | 200 | err = fdt_open_into(working_fdt, newaddr, len); |
781e09ee | 201 | if (err != 0) { |
addd8ce8 GVB |
202 | printf ("libfdt fdt_open_into(): %s\n", |
203 | fdt_strerror(err)); | |
781e09ee GVB |
204 | return 1; |
205 | } | |
e489b9c0 | 206 | working_fdt = newaddr; |
f7f191ee FP |
207 | #ifdef CONFIG_OF_SYSTEM_SETUP |
208 | /* Call the board-specific fixup routine */ | |
209 | } else if (strncmp(argv[1], "sys", 3) == 0) { | |
210 | int err = ft_system_setup(working_fdt, gd->bd); | |
781e09ee | 211 | |
f7f191ee FP |
212 | if (err) { |
213 | printf("Failed to add system information to FDT: %s\n", | |
214 | fdt_strerror(err)); | |
215 | return CMD_RET_FAILURE; | |
216 | } | |
217 | #endif | |
47e26b1b | 218 | /* |
25114033 | 219 | * Make a new node |
47e26b1b | 220 | */ |
2fb698bf | 221 | } else if (strncmp(argv[1], "mk", 2) == 0) { |
25114033 GVB |
222 | char *pathp; /* path */ |
223 | char *nodep; /* new node to add */ | |
224 | int nodeoffset; /* node offset from libfdt */ | |
225 | int err; | |
226 | ||
227 | /* | |
228 | * Parameters: Node path, new node to be appended to the path. | |
229 | */ | |
47e26b1b | 230 | if (argc < 4) |
4c12eeb8 | 231 | return CMD_RET_USAGE; |
25114033 GVB |
232 | |
233 | pathp = argv[2]; | |
234 | nodep = argv[3]; | |
235 | ||
e489b9c0 | 236 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
25114033 GVB |
237 | if (nodeoffset < 0) { |
238 | /* | |
239 | * Not found or something else bad happened. | |
240 | */ | |
8d04f02f | 241 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 242 | fdt_strerror(nodeoffset)); |
25114033 GVB |
243 | return 1; |
244 | } | |
e489b9c0 | 245 | err = fdt_add_subnode(working_fdt, nodeoffset, nodep); |
25114033 | 246 | if (err < 0) { |
addd8ce8 GVB |
247 | printf ("libfdt fdt_add_subnode(): %s\n", |
248 | fdt_strerror(err)); | |
25114033 GVB |
249 | return 1; |
250 | } | |
251 | ||
47e26b1b | 252 | /* |
e489b9c0 | 253 | * Set the value of a property in the working_fdt. |
47e26b1b | 254 | */ |
25114033 | 255 | } else if (argv[1][0] == 's') { |
781e09ee | 256 | char *pathp; /* path */ |
addd8ce8 | 257 | char *prop; /* property */ |
781e09ee | 258 | int nodeoffset; /* node offset from libfdt */ |
addd8ce8 | 259 | static char data[SCRATCHPAD]; /* storage for the property */ |
9620d872 | 260 | const void *ptmp; |
addd8ce8 GVB |
261 | int len; /* new length of the property */ |
262 | int ret; /* return value */ | |
781e09ee GVB |
263 | |
264 | /* | |
ea6d8be1 | 265 | * Parameters: Node path, property, optional value. |
781e09ee | 266 | */ |
47e26b1b | 267 | if (argc < 4) |
4c12eeb8 | 268 | return CMD_RET_USAGE; |
781e09ee GVB |
269 | |
270 | pathp = argv[2]; | |
271 | prop = argv[3]; | |
781e09ee | 272 | |
e489b9c0 | 273 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
25114033 | 274 | if (nodeoffset < 0) { |
781e09ee | 275 | /* |
25114033 | 276 | * Not found or something else bad happened. |
781e09ee | 277 | */ |
8d04f02f | 278 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 279 | fdt_strerror(nodeoffset)); |
781e09ee | 280 | return 1; |
25114033 | 281 | } |
25114033 | 282 | |
9620d872 HS |
283 | if (argc == 4) { |
284 | len = 0; | |
285 | } else { | |
286 | ptmp = fdt_getprop(working_fdt, nodeoffset, prop, &len); | |
99bb38e2 TR |
287 | if (!ptmp) { |
288 | printf("prop (%s) not found!\n", prop); | |
289 | return 1; | |
290 | } | |
9620d872 HS |
291 | if (len > SCRATCHPAD) { |
292 | printf("prop (%d) doesn't fit in scratchpad!\n", | |
293 | len); | |
294 | return 1; | |
295 | } | |
296 | memcpy(data, ptmp, len); | |
297 | ret = fdt_parse_prop(&argv[4], argc - 4, data, &len); | |
298 | if (ret != 0) | |
299 | return ret; | |
300 | } | |
301 | ||
e489b9c0 | 302 | ret = fdt_setprop(working_fdt, nodeoffset, prop, data, len); |
25114033 GVB |
303 | if (ret < 0) { |
304 | printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret)); | |
305 | return 1; | |
781e09ee GVB |
306 | } |
307 | ||
bc80295b JH |
308 | /******************************************************************** |
309 | * Get the value of a property in the working_fdt. | |
310 | ********************************************************************/ | |
311 | } else if (argv[1][0] == 'g') { | |
312 | char *subcmd; /* sub-command */ | |
313 | char *pathp; /* path */ | |
314 | char *prop; /* property */ | |
315 | char *var; /* variable to store result */ | |
316 | int nodeoffset; /* node offset from libfdt */ | |
317 | const void *nodep; /* property node pointer */ | |
318 | int len = 0; /* new length of the property */ | |
319 | ||
320 | /* | |
321 | * Parameters: Node path, property, optional value. | |
322 | */ | |
323 | if (argc < 5) | |
324 | return CMD_RET_USAGE; | |
325 | ||
326 | subcmd = argv[2]; | |
327 | ||
328 | if (argc < 6 && subcmd[0] != 's') | |
329 | return CMD_RET_USAGE; | |
330 | ||
331 | var = argv[3]; | |
332 | pathp = argv[4]; | |
333 | prop = argv[5]; | |
334 | ||
335 | nodeoffset = fdt_path_offset(working_fdt, pathp); | |
336 | if (nodeoffset < 0) { | |
337 | /* | |
338 | * Not found or something else bad happened. | |
339 | */ | |
340 | printf("libfdt fdt_path_offset() returned %s\n", | |
341 | fdt_strerror(nodeoffset)); | |
342 | return 1; | |
343 | } | |
344 | ||
345 | if (subcmd[0] == 'n' || (subcmd[0] == 's' && argc == 5)) { | |
346 | int reqIndex = -1; | |
347 | int startDepth = fdt_node_depth( | |
348 | working_fdt, nodeoffset); | |
349 | int curDepth = startDepth; | |
350 | int curIndex = -1; | |
351 | int nextNodeOffset = fdt_next_node( | |
352 | working_fdt, nodeoffset, &curDepth); | |
353 | ||
354 | if (subcmd[0] == 'n') | |
355 | reqIndex = simple_strtoul(argv[5], NULL, 16); | |
356 | ||
357 | while (curDepth > startDepth) { | |
358 | if (curDepth == startDepth + 1) | |
359 | curIndex++; | |
360 | if (subcmd[0] == 'n' && curIndex == reqIndex) { | |
382bee57 | 361 | const char *node_name; |
bc80295b | 362 | |
382bee57 SG |
363 | node_name = fdt_get_name(working_fdt, |
364 | nextNodeOffset, | |
365 | NULL); | |
366 | env_set(var, node_name); | |
bc80295b JH |
367 | return 0; |
368 | } | |
369 | nextNodeOffset = fdt_next_node( | |
370 | working_fdt, nextNodeOffset, &curDepth); | |
371 | if (nextNodeOffset < 0) | |
372 | break; | |
373 | } | |
374 | if (subcmd[0] == 's') { | |
375 | /* get the num nodes at this level */ | |
018f5303 | 376 | env_set_ulong(var, curIndex + 1); |
bc80295b JH |
377 | } else { |
378 | /* node index not found */ | |
379 | printf("libfdt node not found\n"); | |
380 | return 1; | |
381 | } | |
382 | } else { | |
383 | nodep = fdt_getprop( | |
384 | working_fdt, nodeoffset, prop, &len); | |
385 | if (len == 0) { | |
386 | /* no property value */ | |
382bee57 | 387 | env_set(var, ""); |
bc80295b | 388 | return 0; |
72c98ed1 | 389 | } else if (nodep && len > 0) { |
bc80295b JH |
390 | if (subcmd[0] == 'v') { |
391 | int ret; | |
392 | ||
382bee57 SG |
393 | ret = fdt_value_env_set(nodep, len, |
394 | var); | |
bc80295b JH |
395 | if (ret != 0) |
396 | return ret; | |
397 | } else if (subcmd[0] == 'a') { | |
398 | /* Get address */ | |
399 | char buf[11]; | |
400 | ||
085b9c3a | 401 | sprintf(buf, "0x%p", nodep); |
382bee57 | 402 | env_set(var, buf); |
bc80295b JH |
403 | } else if (subcmd[0] == 's') { |
404 | /* Get size */ | |
405 | char buf[11]; | |
406 | ||
407 | sprintf(buf, "0x%08X", len); | |
382bee57 | 408 | env_set(var, buf); |
bc80295b JH |
409 | } else |
410 | return CMD_RET_USAGE; | |
411 | return 0; | |
412 | } else { | |
413 | printf("libfdt fdt_getprop(): %s\n", | |
414 | fdt_strerror(len)); | |
415 | return 1; | |
416 | } | |
417 | } | |
418 | ||
47e26b1b | 419 | /* |
781e09ee | 420 | * Print (recursive) / List (single level) |
47e26b1b | 421 | */ |
25114033 | 422 | } else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) { |
781e09ee GVB |
423 | int depth = MAX_LEVEL; /* how deep to print */ |
424 | char *pathp; /* path */ | |
addd8ce8 GVB |
425 | char *prop; /* property */ |
426 | int ret; /* return value */ | |
f738b4a7 | 427 | static char root[2] = "/"; |
781e09ee GVB |
428 | |
429 | /* | |
430 | * list is an alias for print, but limited to 1 level | |
431 | */ | |
25114033 | 432 | if (argv[1][0] == 'l') { |
781e09ee GVB |
433 | depth = 1; |
434 | } | |
435 | ||
436 | /* | |
437 | * Get the starting path. The root node is an oddball, | |
438 | * the offset is zero and has no name. | |
439 | */ | |
f738b4a7 KG |
440 | if (argc == 2) |
441 | pathp = root; | |
442 | else | |
443 | pathp = argv[2]; | |
781e09ee GVB |
444 | if (argc > 3) |
445 | prop = argv[3]; | |
446 | else | |
447 | prop = NULL; | |
448 | ||
addd8ce8 GVB |
449 | ret = fdt_print(pathp, prop, depth); |
450 | if (ret != 0) | |
451 | return ret; | |
781e09ee | 452 | |
47e26b1b | 453 | /* |
781e09ee | 454 | * Remove a property/node |
47e26b1b | 455 | */ |
2fb698bf | 456 | } else if (strncmp(argv[1], "rm", 2) == 0) { |
781e09ee GVB |
457 | int nodeoffset; /* node offset from libfdt */ |
458 | int err; | |
459 | ||
460 | /* | |
461 | * Get the path. The root node is an oddball, the offset | |
462 | * is zero and has no name. | |
463 | */ | |
e489b9c0 | 464 | nodeoffset = fdt_path_offset (working_fdt, argv[2]); |
25114033 GVB |
465 | if (nodeoffset < 0) { |
466 | /* | |
467 | * Not found or something else bad happened. | |
468 | */ | |
8d04f02f | 469 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 470 | fdt_strerror(nodeoffset)); |
25114033 | 471 | return 1; |
781e09ee GVB |
472 | } |
473 | /* | |
474 | * Do the delete. A fourth parameter means delete a property, | |
475 | * otherwise delete the node. | |
476 | */ | |
477 | if (argc > 3) { | |
e489b9c0 | 478 | err = fdt_delprop(working_fdt, nodeoffset, argv[3]); |
781e09ee | 479 | if (err < 0) { |
addd8ce8 GVB |
480 | printf("libfdt fdt_delprop(): %s\n", |
481 | fdt_strerror(err)); | |
781e09ee GVB |
482 | return err; |
483 | } | |
484 | } else { | |
e489b9c0 | 485 | err = fdt_del_node(working_fdt, nodeoffset); |
781e09ee | 486 | if (err < 0) { |
addd8ce8 GVB |
487 | printf("libfdt fdt_del_node(): %s\n", |
488 | fdt_strerror(err)); | |
781e09ee GVB |
489 | return err; |
490 | } | |
491 | } | |
804887e6 | 492 | |
47e26b1b | 493 | /* |
804887e6 | 494 | * Display header info |
47e26b1b | 495 | */ |
804887e6 | 496 | } else if (argv[1][0] == 'h') { |
e489b9c0 KP |
497 | u32 version = fdt_version(working_fdt); |
498 | printf("magic:\t\t\t0x%x\n", fdt_magic(working_fdt)); | |
499 | printf("totalsize:\t\t0x%x (%d)\n", fdt_totalsize(working_fdt), | |
500 | fdt_totalsize(working_fdt)); | |
501 | printf("off_dt_struct:\t\t0x%x\n", | |
502 | fdt_off_dt_struct(working_fdt)); | |
503 | printf("off_dt_strings:\t\t0x%x\n", | |
504 | fdt_off_dt_strings(working_fdt)); | |
505 | printf("off_mem_rsvmap:\t\t0x%x\n", | |
506 | fdt_off_mem_rsvmap(working_fdt)); | |
804887e6 | 507 | printf("version:\t\t%d\n", version); |
e489b9c0 KP |
508 | printf("last_comp_version:\t%d\n", |
509 | fdt_last_comp_version(working_fdt)); | |
804887e6 KG |
510 | if (version >= 2) |
511 | printf("boot_cpuid_phys:\t0x%x\n", | |
e489b9c0 | 512 | fdt_boot_cpuid_phys(working_fdt)); |
804887e6 KG |
513 | if (version >= 3) |
514 | printf("size_dt_strings:\t0x%x\n", | |
e489b9c0 | 515 | fdt_size_dt_strings(working_fdt)); |
804887e6 KG |
516 | if (version >= 17) |
517 | printf("size_dt_struct:\t\t0x%x\n", | |
e489b9c0 KP |
518 | fdt_size_dt_struct(working_fdt)); |
519 | printf("number mem_rsv:\t\t0x%x\n", | |
520 | fdt_num_mem_rsv(working_fdt)); | |
804887e6 KG |
521 | printf("\n"); |
522 | ||
47e26b1b | 523 | /* |
804887e6 | 524 | * Set boot cpu id |
47e26b1b | 525 | */ |
2fb698bf | 526 | } else if (strncmp(argv[1], "boo", 3) == 0) { |
804887e6 | 527 | unsigned long tmp = simple_strtoul(argv[2], NULL, 16); |
e489b9c0 | 528 | fdt_set_boot_cpuid_phys(working_fdt, tmp); |
804887e6 | 529 | |
47e26b1b | 530 | /* |
804887e6 | 531 | * memory command |
47e26b1b | 532 | */ |
2fb698bf | 533 | } else if (strncmp(argv[1], "me", 2) == 0) { |
804887e6 KG |
534 | uint64_t addr, size; |
535 | int err; | |
4b142feb HS |
536 | addr = simple_strtoull(argv[2], NULL, 16); |
537 | size = simple_strtoull(argv[3], NULL, 16); | |
e489b9c0 | 538 | err = fdt_fixup_memory(working_fdt, addr, size); |
804887e6 KG |
539 | if (err < 0) |
540 | return err; | |
541 | ||
47e26b1b | 542 | /* |
804887e6 | 543 | * mem reserve commands |
47e26b1b | 544 | */ |
2fb698bf | 545 | } else if (strncmp(argv[1], "rs", 2) == 0) { |
804887e6 KG |
546 | if (argv[2][0] == 'p') { |
547 | uint64_t addr, size; | |
e489b9c0 | 548 | int total = fdt_num_mem_rsv(working_fdt); |
804887e6 KG |
549 | int j, err; |
550 | printf("index\t\t start\t\t size\n"); | |
551 | printf("-------------------------------" | |
552 | "-----------------\n"); | |
553 | for (j = 0; j < total; j++) { | |
e489b9c0 | 554 | err = fdt_get_mem_rsv(working_fdt, j, &addr, &size); |
804887e6 KG |
555 | if (err < 0) { |
556 | printf("libfdt fdt_get_mem_rsv(): %s\n", | |
557 | fdt_strerror(err)); | |
558 | return err; | |
559 | } | |
560 | printf(" %x\t%08x%08x\t%08x%08x\n", j, | |
561 | (u32)(addr >> 32), | |
562 | (u32)(addr & 0xffffffff), | |
563 | (u32)(size >> 32), | |
564 | (u32)(size & 0xffffffff)); | |
565 | } | |
566 | } else if (argv[2][0] == 'a') { | |
567 | uint64_t addr, size; | |
568 | int err; | |
804887e6 KG |
569 | addr = simple_strtoull(argv[3], NULL, 16); |
570 | size = simple_strtoull(argv[4], NULL, 16); | |
e489b9c0 | 571 | err = fdt_add_mem_rsv(working_fdt, addr, size); |
804887e6 KG |
572 | |
573 | if (err < 0) { | |
574 | printf("libfdt fdt_add_mem_rsv(): %s\n", | |
575 | fdt_strerror(err)); | |
576 | return err; | |
577 | } | |
578 | } else if (argv[2][0] == 'd') { | |
579 | unsigned long idx = simple_strtoul(argv[3], NULL, 16); | |
e489b9c0 | 580 | int err = fdt_del_mem_rsv(working_fdt, idx); |
804887e6 KG |
581 | |
582 | if (err < 0) { | |
583 | printf("libfdt fdt_del_mem_rsv(): %s\n", | |
584 | fdt_strerror(err)); | |
585 | return err; | |
586 | } | |
587 | } else { | |
588 | /* Unrecognized command */ | |
4c12eeb8 | 589 | return CMD_RET_USAGE; |
804887e6 | 590 | } |
99dffca3 | 591 | } |
fd61e55d | 592 | #ifdef CONFIG_OF_BOARD_SETUP |
99dffca3 | 593 | /* Call the board-specific fixup routine */ |
4ba98dc2 SG |
594 | else if (strncmp(argv[1], "boa", 3) == 0) { |
595 | int err = ft_board_setup(working_fdt, gd->bd); | |
596 | ||
597 | if (err) { | |
598 | printf("Failed to update board information in FDT: %s\n", | |
599 | fdt_strerror(err)); | |
600 | return CMD_RET_FAILURE; | |
601 | } | |
602 | } | |
fd61e55d | 603 | #endif |
99dffca3 | 604 | /* Create a chosen node */ |
097dd3e0 | 605 | else if (strncmp(argv[1], "cho", 3) == 0) { |
f953d99f KG |
606 | unsigned long initrd_start = 0, initrd_end = 0; |
607 | ||
47e26b1b | 608 | if ((argc != 2) && (argc != 4)) |
4c12eeb8 | 609 | return CMD_RET_USAGE; |
f953d99f KG |
610 | |
611 | if (argc == 4) { | |
612 | initrd_start = simple_strtoul(argv[2], NULL, 16); | |
613 | initrd_end = simple_strtoul(argv[3], NULL, 16); | |
614 | } | |
615 | ||
bc6ed0f9 | 616 | fdt_chosen(working_fdt); |
dbe963ae | 617 | fdt_initrd(working_fdt, initrd_start, initrd_end); |
097dd3e0 HS |
618 | |
619 | #if defined(CONFIG_FIT_SIGNATURE) | |
620 | } else if (strncmp(argv[1], "che", 3) == 0) { | |
621 | int cfg_noffset; | |
622 | int ret; | |
623 | unsigned long addr; | |
624 | struct fdt_header *blob; | |
625 | ||
626 | if (!working_fdt) | |
627 | return CMD_RET_FAILURE; | |
628 | ||
629 | if (argc > 2) { | |
630 | addr = simple_strtoul(argv[2], NULL, 16); | |
631 | blob = map_sysmem(addr, 0); | |
632 | } else { | |
633 | blob = (struct fdt_header *)gd->fdt_blob; | |
634 | } | |
635 | if (!fdt_valid(&blob)) | |
636 | return 1; | |
637 | ||
638 | gd->fdt_blob = blob; | |
639 | cfg_noffset = fit_conf_get_node(working_fdt, NULL); | |
640 | if (!cfg_noffset) { | |
641 | printf("Could not find configuration node: %s\n", | |
642 | fdt_strerror(cfg_noffset)); | |
643 | return CMD_RET_FAILURE; | |
644 | } | |
645 | ||
646 | ret = fit_config_verify(working_fdt, cfg_noffset); | |
12df2abe | 647 | if (ret == 0) |
097dd3e0 HS |
648 | return CMD_RET_SUCCESS; |
649 | else | |
650 | return CMD_RET_FAILURE; | |
651 | #endif | |
652 | ||
40afac22 | 653 | } |
e6628ad7 MR |
654 | #ifdef CONFIG_OF_LIBFDT_OVERLAY |
655 | /* apply an overlay */ | |
656 | else if (strncmp(argv[1], "ap", 2) == 0) { | |
657 | unsigned long addr; | |
658 | struct fdt_header *blob; | |
082b1414 | 659 | int ret; |
e6628ad7 MR |
660 | |
661 | if (argc != 3) | |
662 | return CMD_RET_USAGE; | |
663 | ||
664 | if (!working_fdt) | |
665 | return CMD_RET_FAILURE; | |
666 | ||
667 | addr = simple_strtoul(argv[2], NULL, 16); | |
668 | blob = map_sysmem(addr, 0); | |
669 | if (!fdt_valid(&blob)) | |
670 | return CMD_RET_FAILURE; | |
671 | ||
082b1414 SA |
672 | ret = fdt_overlay_apply(working_fdt, blob); |
673 | if (ret) { | |
674 | printf("fdt_overlay_apply(): %s\n", fdt_strerror(ret)); | |
e6628ad7 | 675 | return CMD_RET_FAILURE; |
082b1414 | 676 | } |
e6628ad7 MR |
677 | } |
678 | #endif | |
40afac22 KG |
679 | /* resize the fdt */ |
680 | else if (strncmp(argv[1], "re", 2) == 0) { | |
ef476836 HS |
681 | uint extrasize; |
682 | if (argc > 2) | |
683 | extrasize = simple_strtoul(argv[2], NULL, 16); | |
684 | else | |
685 | extrasize = 0; | |
686 | fdt_shrink_to_minimum(working_fdt, extrasize); | |
40afac22 KG |
687 | } |
688 | else { | |
99dffca3 | 689 | /* Unrecognized command */ |
4c12eeb8 | 690 | return CMD_RET_USAGE; |
781e09ee GVB |
691 | } |
692 | ||
693 | return 0; | |
694 | } | |
695 | ||
addd8ce8 | 696 | /****************************************************************************/ |
781e09ee | 697 | |
d14da913 SG |
698 | /** |
699 | * fdt_valid() - Check if an FDT is valid. If not, change it to NULL | |
700 | * | |
701 | * @blobp: Pointer to FDT pointer | |
702 | * @return 1 if OK, 0 if bad (in which case *blobp is set to NULL) | |
703 | */ | |
704 | static int fdt_valid(struct fdt_header **blobp) | |
781e09ee | 705 | { |
d14da913 SG |
706 | const void *blob = *blobp; |
707 | int err; | |
64dbbd40 | 708 | |
d14da913 | 709 | if (blob == NULL) { |
64dbbd40 | 710 | printf ("The address of the fdt is invalid (NULL).\n"); |
781e09ee GVB |
711 | return 0; |
712 | } | |
64dbbd40 | 713 | |
d14da913 | 714 | err = fdt_check_header(blob); |
64dbbd40 GVB |
715 | if (err == 0) |
716 | return 1; /* valid */ | |
717 | ||
718 | if (err < 0) { | |
25114033 | 719 | printf("libfdt fdt_check_header(): %s", fdt_strerror(err)); |
64dbbd40 GVB |
720 | /* |
721 | * Be more informative on bad version. | |
722 | */ | |
723 | if (err == -FDT_ERR_BADVERSION) { | |
d14da913 | 724 | if (fdt_version(blob) < |
e489b9c0 | 725 | FDT_FIRST_SUPPORTED_VERSION) { |
dc4b0b38 | 726 | printf (" - too old, fdt %d < %d", |
d14da913 | 727 | fdt_version(blob), |
addd8ce8 | 728 | FDT_FIRST_SUPPORTED_VERSION); |
64dbbd40 | 729 | } |
d14da913 | 730 | if (fdt_last_comp_version(blob) > |
e489b9c0 | 731 | FDT_LAST_SUPPORTED_VERSION) { |
dc4b0b38 | 732 | printf (" - too new, fdt %d > %d", |
d14da913 | 733 | fdt_version(blob), |
addd8ce8 | 734 | FDT_LAST_SUPPORTED_VERSION); |
64dbbd40 | 735 | } |
64dbbd40 GVB |
736 | } |
737 | printf("\n"); | |
d14da913 | 738 | *blobp = NULL; |
781e09ee GVB |
739 | return 0; |
740 | } | |
741 | return 1; | |
742 | } | |
743 | ||
addd8ce8 | 744 | /****************************************************************************/ |
781e09ee GVB |
745 | |
746 | /* | |
addd8ce8 | 747 | * Parse the user's input, partially heuristic. Valid formats: |
4abd844d | 748 | * <0x00112233 4 05> - an array of cells. Numbers follow standard |
53677ef1 | 749 | * C conventions. |
addd8ce8 GVB |
750 | * [00 11 22 .. nn] - byte stream |
751 | * "string" - If the the value doesn't start with "<" or "[", it is | |
752 | * treated as a string. Note that the quotes are | |
753 | * stripped by the parser before we get the string. | |
4abd844d | 754 | * newval: An array of strings containing the new property as specified |
53677ef1 | 755 | * on the command line |
4abd844d AF |
756 | * count: The number of strings in the array |
757 | * data: A bytestream to be placed in the property | |
758 | * len: The length of the resulting bytestream | |
addd8ce8 | 759 | */ |
54841ab5 | 760 | static int fdt_parse_prop(char * const *newval, int count, char *data, int *len) |
addd8ce8 GVB |
761 | { |
762 | char *cp; /* temporary char pointer */ | |
4abd844d | 763 | char *newp; /* temporary newval char pointer */ |
addd8ce8 | 764 | unsigned long tmp; /* holds converted values */ |
4abd844d | 765 | int stridx = 0; |
addd8ce8 | 766 | |
4abd844d AF |
767 | *len = 0; |
768 | newp = newval[0]; | |
769 | ||
770 | /* An array of cells */ | |
771 | if (*newp == '<') { | |
772 | newp++; | |
773 | while ((*newp != '>') && (stridx < count)) { | |
774 | /* | |
775 | * Keep searching until we find that last ">" | |
776 | * That way users don't have to escape the spaces | |
777 | */ | |
778 | if (*newp == '\0') { | |
779 | newp = newval[++stridx]; | |
780 | continue; | |
781 | } | |
782 | ||
783 | cp = newp; | |
784 | tmp = simple_strtoul(cp, &newp, 0); | |
9620d872 HS |
785 | if (*cp != '?') |
786 | *(fdt32_t *)data = cpu_to_fdt32(tmp); | |
787 | else | |
788 | newp++; | |
789 | ||
4abd844d AF |
790 | data += 4; |
791 | *len += 4; | |
792 | ||
793 | /* If the ptr didn't advance, something went wrong */ | |
794 | if ((newp - cp) <= 0) { | |
addd8ce8 GVB |
795 | printf("Sorry, I could not convert \"%s\"\n", |
796 | cp); | |
797 | return 1; | |
798 | } | |
4abd844d AF |
799 | |
800 | while (*newp == ' ') | |
801 | newp++; | |
addd8ce8 | 802 | } |
4abd844d AF |
803 | |
804 | if (*newp != '>') { | |
805 | printf("Unexpected character '%c'\n", *newp); | |
addd8ce8 GVB |
806 | return 1; |
807 | } | |
4abd844d | 808 | } else if (*newp == '[') { |
addd8ce8 GVB |
809 | /* |
810 | * Byte stream. Convert the values. | |
811 | */ | |
4abd844d | 812 | newp++; |
6e748ea0 | 813 | while ((stridx < count) && (*newp != ']')) { |
4abd844d AF |
814 | while (*newp == ' ') |
815 | newp++; | |
6e748ea0 | 816 | if (*newp == '\0') { |
4abd844d | 817 | newp = newval[++stridx]; |
6e748ea0 KM |
818 | continue; |
819 | } | |
820 | if (!isxdigit(*newp)) | |
821 | break; | |
822 | tmp = simple_strtoul(newp, &newp, 16); | |
823 | *data++ = tmp & 0xFF; | |
824 | *len = *len + 1; | |
addd8ce8 | 825 | } |
4abd844d | 826 | if (*newp != ']') { |
dc4b0b38 | 827 | printf("Unexpected character '%c'\n", *newp); |
addd8ce8 GVB |
828 | return 1; |
829 | } | |
830 | } else { | |
831 | /* | |
6e748ea0 KM |
832 | * Assume it is one or more strings. Copy it into our |
833 | * data area for convenience (including the | |
834 | * terminating '\0's). | |
addd8ce8 | 835 | */ |
4abd844d | 836 | while (stridx < count) { |
6e748ea0 | 837 | size_t length = strlen(newp) + 1; |
4abd844d | 838 | strcpy(data, newp); |
6e748ea0 KM |
839 | data += length; |
840 | *len += length; | |
4abd844d AF |
841 | newp = newval[++stridx]; |
842 | } | |
addd8ce8 GVB |
843 | } |
844 | return 0; | |
845 | } | |
846 | ||
847 | /****************************************************************************/ | |
848 | ||
849 | /* | |
850 | * Heuristic to guess if this is a string or concatenated strings. | |
781e09ee GVB |
851 | */ |
852 | ||
853 | static int is_printable_string(const void *data, int len) | |
854 | { | |
855 | const char *s = data; | |
856 | ||
857 | /* zero length is not */ | |
858 | if (len == 0) | |
859 | return 0; | |
860 | ||
8805beec JH |
861 | /* must terminate with zero or '\n' */ |
862 | if (s[len - 1] != '\0' && s[len - 1] != '\n') | |
781e09ee GVB |
863 | return 0; |
864 | ||
865 | /* printable or a null byte (concatenated strings) */ | |
8805beec | 866 | while (((*s == '\0') || isprint(*s) || isspace(*s)) && (len > 0)) { |
781e09ee GVB |
867 | /* |
868 | * If we see a null, there are three possibilities: | |
869 | * 1) If len == 1, it is the end of the string, printable | |
870 | * 2) Next character also a null, not printable. | |
871 | * 3) Next character not a null, continue to check. | |
872 | */ | |
873 | if (s[0] == '\0') { | |
874 | if (len == 1) | |
875 | return 1; | |
876 | if (s[1] == '\0') | |
877 | return 0; | |
878 | } | |
879 | s++; | |
880 | len--; | |
881 | } | |
882 | ||
883 | /* Not the null termination, or not done yet: not printable */ | |
884 | if (*s != '\0' || (len != 0)) | |
885 | return 0; | |
886 | ||
887 | return 1; | |
888 | } | |
889 | ||
addd8ce8 GVB |
890 | |
891 | /* | |
892 | * Print the property in the best format, a heuristic guess. Print as | |
893 | * a string, concatenated strings, a byte, word, double word, or (if all | |
894 | * else fails) it is printed as a stream of bytes. | |
895 | */ | |
781e09ee GVB |
896 | static void print_data(const void *data, int len) |
897 | { | |
898 | int j; | |
781e09ee GVB |
899 | |
900 | /* no data, don't print */ | |
901 | if (len == 0) | |
902 | return; | |
903 | ||
904 | /* | |
905 | * It is a string, but it may have multiple strings (embedded '\0's). | |
906 | */ | |
907 | if (is_printable_string(data, len)) { | |
908 | puts("\""); | |
909 | j = 0; | |
910 | while (j < len) { | |
911 | if (j > 0) | |
912 | puts("\", \""); | |
913 | puts(data); | |
914 | j += strlen(data) + 1; | |
915 | data += strlen(data) + 1; | |
916 | } | |
917 | puts("\""); | |
918 | return; | |
919 | } | |
920 | ||
4abd844d | 921 | if ((len %4) == 0) { |
5d927b42 | 922 | if (len > CMD_FDT_MAX_DUMP) |
085b9c3a | 923 | printf("* 0x%p [0x%08x]", data, len); |
f0a29d43 | 924 | else { |
088f1b19 | 925 | const __be32 *p; |
f0a29d43 JH |
926 | |
927 | printf("<"); | |
928 | for (j = 0, p = data; j < len/4; j++) | |
929 | printf("0x%08x%s", fdt32_to_cpu(p[j]), | |
930 | j < (len/4 - 1) ? " " : ""); | |
931 | printf(">"); | |
932 | } | |
4abd844d | 933 | } else { /* anything else... hexdump */ |
5d927b42 | 934 | if (len > CMD_FDT_MAX_DUMP) |
085b9c3a | 935 | printf("* 0x%p [0x%08x]", data, len); |
f0a29d43 JH |
936 | else { |
937 | const u8 *s; | |
938 | ||
939 | printf("["); | |
940 | for (j = 0, s = data; j < len; j++) | |
941 | printf("%02x%s", s[j], j < len - 1 ? " " : ""); | |
942 | printf("]"); | |
943 | } | |
781e09ee GVB |
944 | } |
945 | } | |
946 | ||
addd8ce8 GVB |
947 | /****************************************************************************/ |
948 | ||
949 | /* | |
e489b9c0 | 950 | * Recursively print (a portion of) the working_fdt. The depth parameter |
addd8ce8 GVB |
951 | * determines how deeply nested the fdt is printed. |
952 | */ | |
dbaf07ce | 953 | static int fdt_print(const char *pathp, char *prop, int depth) |
addd8ce8 | 954 | { |
addd8ce8 GVB |
955 | static char tabs[MAX_LEVEL+1] = |
956 | "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t" | |
957 | "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"; | |
dbaf07ce | 958 | const void *nodep; /* property node pointer */ |
addd8ce8 GVB |
959 | int nodeoffset; /* node offset from libfdt */ |
960 | int nextoffset; /* next node offset from libfdt */ | |
961 | uint32_t tag; /* tag */ | |
962 | int len; /* length of the property */ | |
963 | int level = 0; /* keep track of nesting level */ | |
91623528 | 964 | const struct fdt_property *fdt_prop; |
addd8ce8 | 965 | |
e489b9c0 | 966 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
addd8ce8 GVB |
967 | if (nodeoffset < 0) { |
968 | /* | |
969 | * Not found or something else bad happened. | |
970 | */ | |
8d04f02f | 971 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 972 | fdt_strerror(nodeoffset)); |
addd8ce8 GVB |
973 | return 1; |
974 | } | |
975 | /* | |
976 | * The user passed in a property as well as node path. | |
977 | * Print only the given property and then return. | |
978 | */ | |
979 | if (prop) { | |
e489b9c0 | 980 | nodep = fdt_getprop (working_fdt, nodeoffset, prop, &len); |
addd8ce8 GVB |
981 | if (len == 0) { |
982 | /* no property value */ | |
983 | printf("%s %s\n", pathp, prop); | |
984 | return 0; | |
9f952672 | 985 | } else if (nodep && len > 0) { |
28f384b1 | 986 | printf("%s = ", prop); |
addd8ce8 GVB |
987 | print_data (nodep, len); |
988 | printf("\n"); | |
989 | return 0; | |
990 | } else { | |
991 | printf ("libfdt fdt_getprop(): %s\n", | |
992 | fdt_strerror(len)); | |
993 | return 1; | |
994 | } | |
995 | } | |
996 | ||
997 | /* | |
998 | * The user passed in a node path and no property, | |
999 | * print the node and all subnodes. | |
1000 | */ | |
addd8ce8 | 1001 | while(level >= 0) { |
e489b9c0 | 1002 | tag = fdt_next_tag(working_fdt, nodeoffset, &nextoffset); |
addd8ce8 GVB |
1003 | switch(tag) { |
1004 | case FDT_BEGIN_NODE: | |
e489b9c0 | 1005 | pathp = fdt_get_name(working_fdt, nodeoffset, NULL); |
91623528 GVB |
1006 | if (level <= depth) { |
1007 | if (pathp == NULL) | |
1008 | pathp = "/* NULL pointer error */"; | |
1009 | if (*pathp == '\0') | |
1010 | pathp = "/"; /* root is nameless */ | |
addd8ce8 GVB |
1011 | printf("%s%s {\n", |
1012 | &tabs[MAX_LEVEL - level], pathp); | |
91623528 | 1013 | } |
addd8ce8 | 1014 | level++; |
addd8ce8 | 1015 | if (level >= MAX_LEVEL) { |
91623528 | 1016 | printf("Nested too deep, aborting.\n"); |
addd8ce8 GVB |
1017 | return 1; |
1018 | } | |
1019 | break; | |
1020 | case FDT_END_NODE: | |
1021 | level--; | |
91623528 | 1022 | if (level <= depth) |
addd8ce8 GVB |
1023 | printf("%s};\n", &tabs[MAX_LEVEL - level]); |
1024 | if (level == 0) { | |
1025 | level = -1; /* exit the loop */ | |
1026 | } | |
1027 | break; | |
1028 | case FDT_PROP: | |
e489b9c0 | 1029 | fdt_prop = fdt_offset_ptr(working_fdt, nodeoffset, |
91623528 | 1030 | sizeof(*fdt_prop)); |
e489b9c0 | 1031 | pathp = fdt_string(working_fdt, |
91623528 GVB |
1032 | fdt32_to_cpu(fdt_prop->nameoff)); |
1033 | len = fdt32_to_cpu(fdt_prop->len); | |
1034 | nodep = fdt_prop->data; | |
addd8ce8 GVB |
1035 | if (len < 0) { |
1036 | printf ("libfdt fdt_getprop(): %s\n", | |
1037 | fdt_strerror(len)); | |
1038 | return 1; | |
1039 | } else if (len == 0) { | |
1040 | /* the property has no value */ | |
91623528 | 1041 | if (level <= depth) |
addd8ce8 GVB |
1042 | printf("%s%s;\n", |
1043 | &tabs[MAX_LEVEL - level], | |
1044 | pathp); | |
1045 | } else { | |
91623528 | 1046 | if (level <= depth) { |
28f384b1 | 1047 | printf("%s%s = ", |
addd8ce8 GVB |
1048 | &tabs[MAX_LEVEL - level], |
1049 | pathp); | |
1050 | print_data (nodep, len); | |
1051 | printf(";\n"); | |
1052 | } | |
1053 | } | |
1054 | break; | |
1055 | case FDT_NOP: | |
dc4b0b38 | 1056 | printf("%s/* NOP */\n", &tabs[MAX_LEVEL - level]); |
addd8ce8 GVB |
1057 | break; |
1058 | case FDT_END: | |
1059 | return 1; | |
1060 | default: | |
91623528 | 1061 | if (level <= depth) |
addd8ce8 GVB |
1062 | printf("Unknown tag 0x%08X\n", tag); |
1063 | return 1; | |
1064 | } | |
1065 | nodeoffset = nextoffset; | |
1066 | } | |
1067 | return 0; | |
1068 | } | |
1069 | ||
781e09ee | 1070 | /********************************************************************/ |
088f1b19 KP |
1071 | #ifdef CONFIG_SYS_LONGHELP |
1072 | static char fdt_help_text[] = | |
4b578655 | 1073 | "addr [-c] <addr> [<length>] - Set the [control] fdt location to <addr>\n" |
e6628ad7 MR |
1074 | #ifdef CONFIG_OF_LIBFDT_OVERLAY |
1075 | "fdt apply <addr> - Apply overlay to the DT\n" | |
1076 | #endif | |
fd61e55d GVB |
1077 | #ifdef CONFIG_OF_BOARD_SETUP |
1078 | "fdt boardsetup - Do board-specific set up\n" | |
c654b517 SG |
1079 | #endif |
1080 | #ifdef CONFIG_OF_SYSTEM_SETUP | |
1081 | "fdt systemsetup - Do system-specific set up\n" | |
fd61e55d | 1082 | #endif |
238cb7a4 | 1083 | "fdt move <fdt> <newaddr> <length> - Copy the fdt to <addr> and make it active\n" |
ef476836 | 1084 | "fdt resize [<extrasize>] - Resize fdt to size + padding to 4k addr + some optional <extrasize> if needed\n" |
781e09ee GVB |
1085 | "fdt print <path> [<prop>] - Recursive print starting at <path>\n" |
1086 | "fdt list <path> [<prop>] - Print one level starting at <path>\n" | |
bc80295b JH |
1087 | "fdt get value <var> <path> <prop> - Get <property> and store in <var>\n" |
1088 | "fdt get name <var> <path> <index> - Get name of node <index> and store in <var>\n" | |
1089 | "fdt get addr <var> <path> <prop> - Get start address of <property> and store in <var>\n" | |
1090 | "fdt get size <var> <path> [<prop>] - Get size of [<property>] or num nodes and store in <var>\n" | |
781e09ee GVB |
1091 | "fdt set <path> <prop> [<val>] - Set <property> [to <val>]\n" |
1092 | "fdt mknode <path> <node> - Create a new node after <path>\n" | |
1093 | "fdt rm <path> [<prop>] - Delete the node or <property>\n" | |
804887e6 KG |
1094 | "fdt header - Display header info\n" |
1095 | "fdt bootcpu <id> - Set boot cpuid\n" | |
1096 | "fdt memory <addr> <size> - Add/Update memory node\n" | |
1097 | "fdt rsvmem print - Show current mem reserves\n" | |
1098 | "fdt rsvmem add <addr> <size> - Add a mem reserve\n" | |
1099 | "fdt rsvmem delete <index> - Delete a mem reserves\n" | |
f953d99f KG |
1100 | "fdt chosen [<start> <end>] - Add/update the /chosen branch in the tree\n" |
1101 | " <start>/<end> - initrd start/end addr\n" | |
097dd3e0 HS |
1102 | #if defined(CONFIG_FIT_SIGNATURE) |
1103 | "fdt checksign [<addr>] - check FIT signature\n" | |
1104 | " <start> - addr of key blob\n" | |
1105 | " default gd->fdt_blob\n" | |
1106 | #endif | |
1cc0a9f4 | 1107 | "NOTE: Dereference aliases by omitting the leading '/', " |
088f1b19 KP |
1108 | "e.g. fdt print ethernet0."; |
1109 | #endif | |
1110 | ||
1111 | U_BOOT_CMD( | |
1112 | fdt, 255, 0, do_fdt, | |
1113 | "flattened device tree utility commands", fdt_help_text | |
781e09ee | 1114 | ); |