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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 */ |
f0a29d43 JH |
23 | #ifndef CONFIG_CMD_FDT_MAX_DUMP |
24 | #define CONFIG_CMD_FDT_MAX_DUMP 64 | |
25 | #endif | |
781e09ee GVB |
26 | |
27 | /* | |
28 | * Global data (for the gd->bd) | |
29 | */ | |
30 | DECLARE_GLOBAL_DATA_PTR; | |
31 | ||
d14da913 | 32 | static int fdt_valid(struct fdt_header **blobp); |
54841ab5 | 33 | static int fdt_parse_prop(char *const*newval, int count, char *data, int *len); |
dbaf07ce | 34 | static int fdt_print(const char *pathp, char *prop, int depth); |
bc80295b | 35 | static int is_printable_string(const void *data, int len); |
781e09ee | 36 | |
ae9e97fa GVB |
37 | /* |
38 | * The working_fdt points to our working flattened device tree. | |
39 | */ | |
40 | struct fdt_header *working_fdt; | |
41 | ||
90fbee3e | 42 | void set_working_fdt_addr(ulong addr) |
54f9c866 | 43 | { |
a92fd657 SG |
44 | void *buf; |
45 | ||
90fbee3e | 46 | buf = map_sysmem(addr, 0); |
a92fd657 | 47 | working_fdt = buf; |
8a133bb5 | 48 | setenv_hex("fdtaddr", addr); |
54f9c866 KG |
49 | } |
50 | ||
bc80295b JH |
51 | /* |
52 | * Get a value from the fdt and format it to be set in the environment | |
53 | */ | |
54 | static int fdt_value_setenv(const void *nodep, int len, const char *var) | |
55 | { | |
56 | if (is_printable_string(nodep, len)) | |
57 | setenv(var, (void *)nodep); | |
58 | else if (len == 4) { | |
59 | char buf[11]; | |
60 | ||
61 | sprintf(buf, "0x%08X", *(uint32_t *)nodep); | |
62 | setenv(var, buf); | |
63 | } else if (len%4 == 0 && len <= 20) { | |
64 | /* Needed to print things like sha1 hashes. */ | |
65 | char buf[41]; | |
66 | int i; | |
67 | ||
68 | for (i = 0; i < len; i += sizeof(unsigned int)) | |
69 | sprintf(buf + (i * 2), "%08x", | |
70 | *(unsigned int *)(nodep + i)); | |
71 | setenv(var, buf); | |
72 | } else { | |
73 | printf("error: unprintable value\n"); | |
74 | return 1; | |
75 | } | |
76 | return 0; | |
77 | } | |
78 | ||
781e09ee GVB |
79 | /* |
80 | * Flattened Device Tree command, see the help for parameter definitions. | |
81 | */ | |
088f1b19 | 82 | static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
781e09ee | 83 | { |
47e26b1b | 84 | if (argc < 2) |
4c12eeb8 | 85 | return CMD_RET_USAGE; |
781e09ee | 86 | |
47e26b1b | 87 | /* |
781e09ee | 88 | * Set the address of the fdt |
47e26b1b | 89 | */ |
f0ed68e2 | 90 | if (strncmp(argv[1], "ad", 2) == 0) { |
54f9c866 | 91 | unsigned long addr; |
4b578655 SG |
92 | int control = 0; |
93 | struct fdt_header *blob; | |
781e09ee GVB |
94 | /* |
95 | * Set the address [and length] of the fdt. | |
96 | */ | |
4b578655 SG |
97 | argc -= 2; |
98 | argv += 2; | |
99 | /* Temporary #ifdef - some archs don't have fdt_blob yet */ | |
100 | #ifdef CONFIG_OF_CONTROL | |
101 | if (argc && !strcmp(*argv, "-c")) { | |
102 | control = 1; | |
103 | argc--; | |
104 | argv++; | |
105 | } | |
106 | #endif | |
107 | if (argc == 0) { | |
108 | if (control) | |
109 | blob = (struct fdt_header *)gd->fdt_blob; | |
110 | else | |
111 | blob = working_fdt; | |
112 | if (!blob || !fdt_valid(&blob)) | |
7dbc38ad | 113 | return 1; |
4b578655 | 114 | printf("The address of the fdt is %#08lx\n", |
c71a0164 | 115 | control ? (ulong)map_to_sysmem(blob) : |
4b578655 | 116 | getenv_hex("fdtaddr", 0)); |
7dbc38ad KG |
117 | return 0; |
118 | } | |
119 | ||
4b578655 | 120 | addr = simple_strtoul(argv[0], NULL, 16); |
a92fd657 | 121 | blob = map_sysmem(addr, 0); |
4b578655 | 122 | if (!fdt_valid(&blob)) |
781e09ee | 123 | return 1; |
4b578655 SG |
124 | if (control) |
125 | gd->fdt_blob = blob; | |
126 | else | |
90fbee3e | 127 | set_working_fdt_addr(addr); |
781e09ee | 128 | |
4b578655 | 129 | if (argc >= 2) { |
781e09ee GVB |
130 | int len; |
131 | int err; | |
132 | /* | |
133 | * Optional new length | |
134 | */ | |
4b578655 SG |
135 | len = simple_strtoul(argv[1], NULL, 16); |
136 | if (len < fdt_totalsize(blob)) { | |
addd8ce8 GVB |
137 | printf ("New length %d < existing length %d, " |
138 | "ignoring.\n", | |
4b578655 | 139 | len, fdt_totalsize(blob)); |
781e09ee GVB |
140 | } else { |
141 | /* | |
142 | * Open in place with a new length. | |
143 | */ | |
4b578655 | 144 | err = fdt_open_into(blob, blob, len); |
781e09ee | 145 | if (err != 0) { |
addd8ce8 GVB |
146 | printf ("libfdt fdt_open_into(): %s\n", |
147 | fdt_strerror(err)); | |
781e09ee GVB |
148 | } |
149 | } | |
150 | } | |
151 | ||
e02c9458 MV |
152 | return CMD_RET_SUCCESS; |
153 | } | |
154 | ||
155 | if (!working_fdt) { | |
156 | puts( | |
157 | "No FDT memory address configured. Please configure\n" | |
158 | "the FDT address via \"fdt addr <address>\" command.\n" | |
159 | "Aborting!\n"); | |
160 | return CMD_RET_FAILURE; | |
161 | } | |
162 | ||
47e26b1b | 163 | /* |
e489b9c0 | 164 | * Move the working_fdt |
47e26b1b | 165 | */ |
e02c9458 | 166 | if (strncmp(argv[1], "mo", 2) == 0) { |
781e09ee GVB |
167 | struct fdt_header *newaddr; |
168 | int len; | |
169 | int err; | |
170 | ||
47e26b1b | 171 | if (argc < 4) |
4c12eeb8 | 172 | return CMD_RET_USAGE; |
781e09ee GVB |
173 | |
174 | /* | |
175 | * Set the address and length of the fdt. | |
176 | */ | |
e489b9c0 | 177 | working_fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16); |
d14da913 | 178 | if (!fdt_valid(&working_fdt)) |
781e09ee | 179 | return 1; |
781e09ee | 180 | |
addd8ce8 | 181 | newaddr = (struct fdt_header *)simple_strtoul(argv[3],NULL,16); |
6be07cc1 GVB |
182 | |
183 | /* | |
184 | * If the user specifies a length, use that. Otherwise use the | |
185 | * current length. | |
186 | */ | |
187 | if (argc <= 4) { | |
e489b9c0 | 188 | len = fdt_totalsize(working_fdt); |
6be07cc1 GVB |
189 | } else { |
190 | len = simple_strtoul(argv[4], NULL, 16); | |
e489b9c0 | 191 | if (len < fdt_totalsize(working_fdt)) { |
addd8ce8 GVB |
192 | printf ("New length 0x%X < existing length " |
193 | "0x%X, aborting.\n", | |
e489b9c0 | 194 | len, fdt_totalsize(working_fdt)); |
6be07cc1 GVB |
195 | return 1; |
196 | } | |
781e09ee GVB |
197 | } |
198 | ||
199 | /* | |
200 | * Copy to the new location. | |
201 | */ | |
e489b9c0 | 202 | err = fdt_open_into(working_fdt, newaddr, len); |
781e09ee | 203 | if (err != 0) { |
addd8ce8 GVB |
204 | printf ("libfdt fdt_open_into(): %s\n", |
205 | fdt_strerror(err)); | |
781e09ee GVB |
206 | return 1; |
207 | } | |
e489b9c0 | 208 | working_fdt = newaddr; |
781e09ee | 209 | |
47e26b1b | 210 | /* |
25114033 | 211 | * Make a new node |
47e26b1b | 212 | */ |
2fb698bf | 213 | } else if (strncmp(argv[1], "mk", 2) == 0) { |
25114033 GVB |
214 | char *pathp; /* path */ |
215 | char *nodep; /* new node to add */ | |
216 | int nodeoffset; /* node offset from libfdt */ | |
217 | int err; | |
218 | ||
219 | /* | |
220 | * Parameters: Node path, new node to be appended to the path. | |
221 | */ | |
47e26b1b | 222 | if (argc < 4) |
4c12eeb8 | 223 | return CMD_RET_USAGE; |
25114033 GVB |
224 | |
225 | pathp = argv[2]; | |
226 | nodep = argv[3]; | |
227 | ||
e489b9c0 | 228 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
25114033 GVB |
229 | if (nodeoffset < 0) { |
230 | /* | |
231 | * Not found or something else bad happened. | |
232 | */ | |
8d04f02f | 233 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 234 | fdt_strerror(nodeoffset)); |
25114033 GVB |
235 | return 1; |
236 | } | |
e489b9c0 | 237 | err = fdt_add_subnode(working_fdt, nodeoffset, nodep); |
25114033 | 238 | if (err < 0) { |
addd8ce8 GVB |
239 | printf ("libfdt fdt_add_subnode(): %s\n", |
240 | fdt_strerror(err)); | |
25114033 GVB |
241 | return 1; |
242 | } | |
243 | ||
47e26b1b | 244 | /* |
e489b9c0 | 245 | * Set the value of a property in the working_fdt. |
47e26b1b | 246 | */ |
25114033 | 247 | } else if (argv[1][0] == 's') { |
781e09ee | 248 | char *pathp; /* path */ |
addd8ce8 | 249 | char *prop; /* property */ |
781e09ee | 250 | int nodeoffset; /* node offset from libfdt */ |
addd8ce8 GVB |
251 | static char data[SCRATCHPAD]; /* storage for the property */ |
252 | int len; /* new length of the property */ | |
253 | int ret; /* return value */ | |
781e09ee GVB |
254 | |
255 | /* | |
ea6d8be1 | 256 | * Parameters: Node path, property, optional value. |
781e09ee | 257 | */ |
47e26b1b | 258 | if (argc < 4) |
4c12eeb8 | 259 | return CMD_RET_USAGE; |
781e09ee GVB |
260 | |
261 | pathp = argv[2]; | |
262 | prop = argv[3]; | |
ea6d8be1 GVB |
263 | if (argc == 4) { |
264 | len = 0; | |
265 | } else { | |
4abd844d | 266 | ret = fdt_parse_prop(&argv[4], argc - 4, data, &len); |
ea6d8be1 GVB |
267 | if (ret != 0) |
268 | return ret; | |
269 | } | |
781e09ee | 270 | |
e489b9c0 | 271 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
25114033 | 272 | if (nodeoffset < 0) { |
781e09ee | 273 | /* |
25114033 | 274 | * Not found or something else bad happened. |
781e09ee | 275 | */ |
8d04f02f | 276 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 277 | fdt_strerror(nodeoffset)); |
781e09ee | 278 | return 1; |
25114033 | 279 | } |
25114033 | 280 | |
e489b9c0 | 281 | ret = fdt_setprop(working_fdt, nodeoffset, prop, data, len); |
25114033 GVB |
282 | if (ret < 0) { |
283 | printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret)); | |
284 | return 1; | |
781e09ee GVB |
285 | } |
286 | ||
bc80295b JH |
287 | /******************************************************************** |
288 | * Get the value of a property in the working_fdt. | |
289 | ********************************************************************/ | |
290 | } else if (argv[1][0] == 'g') { | |
291 | char *subcmd; /* sub-command */ | |
292 | char *pathp; /* path */ | |
293 | char *prop; /* property */ | |
294 | char *var; /* variable to store result */ | |
295 | int nodeoffset; /* node offset from libfdt */ | |
296 | const void *nodep; /* property node pointer */ | |
297 | int len = 0; /* new length of the property */ | |
298 | ||
299 | /* | |
300 | * Parameters: Node path, property, optional value. | |
301 | */ | |
302 | if (argc < 5) | |
303 | return CMD_RET_USAGE; | |
304 | ||
305 | subcmd = argv[2]; | |
306 | ||
307 | if (argc < 6 && subcmd[0] != 's') | |
308 | return CMD_RET_USAGE; | |
309 | ||
310 | var = argv[3]; | |
311 | pathp = argv[4]; | |
312 | prop = argv[5]; | |
313 | ||
314 | nodeoffset = fdt_path_offset(working_fdt, pathp); | |
315 | if (nodeoffset < 0) { | |
316 | /* | |
317 | * Not found or something else bad happened. | |
318 | */ | |
319 | printf("libfdt fdt_path_offset() returned %s\n", | |
320 | fdt_strerror(nodeoffset)); | |
321 | return 1; | |
322 | } | |
323 | ||
324 | if (subcmd[0] == 'n' || (subcmd[0] == 's' && argc == 5)) { | |
325 | int reqIndex = -1; | |
326 | int startDepth = fdt_node_depth( | |
327 | working_fdt, nodeoffset); | |
328 | int curDepth = startDepth; | |
329 | int curIndex = -1; | |
330 | int nextNodeOffset = fdt_next_node( | |
331 | working_fdt, nodeoffset, &curDepth); | |
332 | ||
333 | if (subcmd[0] == 'n') | |
334 | reqIndex = simple_strtoul(argv[5], NULL, 16); | |
335 | ||
336 | while (curDepth > startDepth) { | |
337 | if (curDepth == startDepth + 1) | |
338 | curIndex++; | |
339 | if (subcmd[0] == 'n' && curIndex == reqIndex) { | |
340 | const char *nodeName = fdt_get_name( | |
341 | working_fdt, nextNodeOffset, NULL); | |
342 | ||
343 | setenv(var, (char *)nodeName); | |
344 | return 0; | |
345 | } | |
346 | nextNodeOffset = fdt_next_node( | |
347 | working_fdt, nextNodeOffset, &curDepth); | |
348 | if (nextNodeOffset < 0) | |
349 | break; | |
350 | } | |
351 | if (subcmd[0] == 's') { | |
352 | /* get the num nodes at this level */ | |
bfc59966 | 353 | setenv_ulong(var, curIndex + 1); |
bc80295b JH |
354 | } else { |
355 | /* node index not found */ | |
356 | printf("libfdt node not found\n"); | |
357 | return 1; | |
358 | } | |
359 | } else { | |
360 | nodep = fdt_getprop( | |
361 | working_fdt, nodeoffset, prop, &len); | |
362 | if (len == 0) { | |
363 | /* no property value */ | |
364 | setenv(var, ""); | |
365 | return 0; | |
366 | } else if (len > 0) { | |
367 | if (subcmd[0] == 'v') { | |
368 | int ret; | |
369 | ||
370 | ret = fdt_value_setenv(nodep, len, var); | |
371 | if (ret != 0) | |
372 | return ret; | |
373 | } else if (subcmd[0] == 'a') { | |
374 | /* Get address */ | |
375 | char buf[11]; | |
376 | ||
085b9c3a | 377 | sprintf(buf, "0x%p", nodep); |
bc80295b JH |
378 | setenv(var, buf); |
379 | } else if (subcmd[0] == 's') { | |
380 | /* Get size */ | |
381 | char buf[11]; | |
382 | ||
383 | sprintf(buf, "0x%08X", len); | |
384 | setenv(var, buf); | |
385 | } else | |
386 | return CMD_RET_USAGE; | |
387 | return 0; | |
388 | } else { | |
389 | printf("libfdt fdt_getprop(): %s\n", | |
390 | fdt_strerror(len)); | |
391 | return 1; | |
392 | } | |
393 | } | |
394 | ||
47e26b1b | 395 | /* |
781e09ee | 396 | * Print (recursive) / List (single level) |
47e26b1b | 397 | */ |
25114033 | 398 | } else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) { |
781e09ee GVB |
399 | int depth = MAX_LEVEL; /* how deep to print */ |
400 | char *pathp; /* path */ | |
addd8ce8 GVB |
401 | char *prop; /* property */ |
402 | int ret; /* return value */ | |
f738b4a7 | 403 | static char root[2] = "/"; |
781e09ee GVB |
404 | |
405 | /* | |
406 | * list is an alias for print, but limited to 1 level | |
407 | */ | |
25114033 | 408 | if (argv[1][0] == 'l') { |
781e09ee GVB |
409 | depth = 1; |
410 | } | |
411 | ||
412 | /* | |
413 | * Get the starting path. The root node is an oddball, | |
414 | * the offset is zero and has no name. | |
415 | */ | |
f738b4a7 KG |
416 | if (argc == 2) |
417 | pathp = root; | |
418 | else | |
419 | pathp = argv[2]; | |
781e09ee GVB |
420 | if (argc > 3) |
421 | prop = argv[3]; | |
422 | else | |
423 | prop = NULL; | |
424 | ||
addd8ce8 GVB |
425 | ret = fdt_print(pathp, prop, depth); |
426 | if (ret != 0) | |
427 | return ret; | |
781e09ee | 428 | |
47e26b1b | 429 | /* |
781e09ee | 430 | * Remove a property/node |
47e26b1b | 431 | */ |
2fb698bf | 432 | } else if (strncmp(argv[1], "rm", 2) == 0) { |
781e09ee GVB |
433 | int nodeoffset; /* node offset from libfdt */ |
434 | int err; | |
435 | ||
436 | /* | |
437 | * Get the path. The root node is an oddball, the offset | |
438 | * is zero and has no name. | |
439 | */ | |
e489b9c0 | 440 | nodeoffset = fdt_path_offset (working_fdt, argv[2]); |
25114033 GVB |
441 | if (nodeoffset < 0) { |
442 | /* | |
443 | * Not found or something else bad happened. | |
444 | */ | |
8d04f02f | 445 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 446 | fdt_strerror(nodeoffset)); |
25114033 | 447 | return 1; |
781e09ee GVB |
448 | } |
449 | /* | |
450 | * Do the delete. A fourth parameter means delete a property, | |
451 | * otherwise delete the node. | |
452 | */ | |
453 | if (argc > 3) { | |
e489b9c0 | 454 | err = fdt_delprop(working_fdt, nodeoffset, argv[3]); |
781e09ee | 455 | if (err < 0) { |
addd8ce8 GVB |
456 | printf("libfdt fdt_delprop(): %s\n", |
457 | fdt_strerror(err)); | |
781e09ee GVB |
458 | return err; |
459 | } | |
460 | } else { | |
e489b9c0 | 461 | err = fdt_del_node(working_fdt, nodeoffset); |
781e09ee | 462 | if (err < 0) { |
addd8ce8 GVB |
463 | printf("libfdt fdt_del_node(): %s\n", |
464 | fdt_strerror(err)); | |
781e09ee GVB |
465 | return err; |
466 | } | |
467 | } | |
804887e6 | 468 | |
47e26b1b | 469 | /* |
804887e6 | 470 | * Display header info |
47e26b1b | 471 | */ |
804887e6 | 472 | } else if (argv[1][0] == 'h') { |
e489b9c0 KP |
473 | u32 version = fdt_version(working_fdt); |
474 | printf("magic:\t\t\t0x%x\n", fdt_magic(working_fdt)); | |
475 | printf("totalsize:\t\t0x%x (%d)\n", fdt_totalsize(working_fdt), | |
476 | fdt_totalsize(working_fdt)); | |
477 | printf("off_dt_struct:\t\t0x%x\n", | |
478 | fdt_off_dt_struct(working_fdt)); | |
479 | printf("off_dt_strings:\t\t0x%x\n", | |
480 | fdt_off_dt_strings(working_fdt)); | |
481 | printf("off_mem_rsvmap:\t\t0x%x\n", | |
482 | fdt_off_mem_rsvmap(working_fdt)); | |
804887e6 | 483 | printf("version:\t\t%d\n", version); |
e489b9c0 KP |
484 | printf("last_comp_version:\t%d\n", |
485 | fdt_last_comp_version(working_fdt)); | |
804887e6 KG |
486 | if (version >= 2) |
487 | printf("boot_cpuid_phys:\t0x%x\n", | |
e489b9c0 | 488 | fdt_boot_cpuid_phys(working_fdt)); |
804887e6 KG |
489 | if (version >= 3) |
490 | printf("size_dt_strings:\t0x%x\n", | |
e489b9c0 | 491 | fdt_size_dt_strings(working_fdt)); |
804887e6 KG |
492 | if (version >= 17) |
493 | printf("size_dt_struct:\t\t0x%x\n", | |
e489b9c0 KP |
494 | fdt_size_dt_struct(working_fdt)); |
495 | printf("number mem_rsv:\t\t0x%x\n", | |
496 | fdt_num_mem_rsv(working_fdt)); | |
804887e6 KG |
497 | printf("\n"); |
498 | ||
47e26b1b | 499 | /* |
804887e6 | 500 | * Set boot cpu id |
47e26b1b | 501 | */ |
2fb698bf | 502 | } else if (strncmp(argv[1], "boo", 3) == 0) { |
804887e6 | 503 | unsigned long tmp = simple_strtoul(argv[2], NULL, 16); |
e489b9c0 | 504 | fdt_set_boot_cpuid_phys(working_fdt, tmp); |
804887e6 | 505 | |
47e26b1b | 506 | /* |
804887e6 | 507 | * memory command |
47e26b1b | 508 | */ |
2fb698bf | 509 | } else if (strncmp(argv[1], "me", 2) == 0) { |
804887e6 KG |
510 | uint64_t addr, size; |
511 | int err; | |
4b142feb HS |
512 | addr = simple_strtoull(argv[2], NULL, 16); |
513 | size = simple_strtoull(argv[3], NULL, 16); | |
e489b9c0 | 514 | err = fdt_fixup_memory(working_fdt, addr, size); |
804887e6 KG |
515 | if (err < 0) |
516 | return err; | |
517 | ||
47e26b1b | 518 | /* |
804887e6 | 519 | * mem reserve commands |
47e26b1b | 520 | */ |
2fb698bf | 521 | } else if (strncmp(argv[1], "rs", 2) == 0) { |
804887e6 KG |
522 | if (argv[2][0] == 'p') { |
523 | uint64_t addr, size; | |
e489b9c0 | 524 | int total = fdt_num_mem_rsv(working_fdt); |
804887e6 KG |
525 | int j, err; |
526 | printf("index\t\t start\t\t size\n"); | |
527 | printf("-------------------------------" | |
528 | "-----------------\n"); | |
529 | for (j = 0; j < total; j++) { | |
e489b9c0 | 530 | err = fdt_get_mem_rsv(working_fdt, j, &addr, &size); |
804887e6 KG |
531 | if (err < 0) { |
532 | printf("libfdt fdt_get_mem_rsv(): %s\n", | |
533 | fdt_strerror(err)); | |
534 | return err; | |
535 | } | |
536 | printf(" %x\t%08x%08x\t%08x%08x\n", j, | |
537 | (u32)(addr >> 32), | |
538 | (u32)(addr & 0xffffffff), | |
539 | (u32)(size >> 32), | |
540 | (u32)(size & 0xffffffff)); | |
541 | } | |
542 | } else if (argv[2][0] == 'a') { | |
543 | uint64_t addr, size; | |
544 | int err; | |
804887e6 KG |
545 | addr = simple_strtoull(argv[3], NULL, 16); |
546 | size = simple_strtoull(argv[4], NULL, 16); | |
e489b9c0 | 547 | err = fdt_add_mem_rsv(working_fdt, addr, size); |
804887e6 KG |
548 | |
549 | if (err < 0) { | |
550 | printf("libfdt fdt_add_mem_rsv(): %s\n", | |
551 | fdt_strerror(err)); | |
552 | return err; | |
553 | } | |
554 | } else if (argv[2][0] == 'd') { | |
555 | unsigned long idx = simple_strtoul(argv[3], NULL, 16); | |
e489b9c0 | 556 | int err = fdt_del_mem_rsv(working_fdt, idx); |
804887e6 KG |
557 | |
558 | if (err < 0) { | |
559 | printf("libfdt fdt_del_mem_rsv(): %s\n", | |
560 | fdt_strerror(err)); | |
561 | return err; | |
562 | } | |
563 | } else { | |
564 | /* Unrecognized command */ | |
4c12eeb8 | 565 | return CMD_RET_USAGE; |
804887e6 | 566 | } |
99dffca3 | 567 | } |
fd61e55d | 568 | #ifdef CONFIG_OF_BOARD_SETUP |
99dffca3 | 569 | /* Call the board-specific fixup routine */ |
4ba98dc2 SG |
570 | else if (strncmp(argv[1], "boa", 3) == 0) { |
571 | int err = ft_board_setup(working_fdt, gd->bd); | |
572 | ||
573 | if (err) { | |
574 | printf("Failed to update board information in FDT: %s\n", | |
575 | fdt_strerror(err)); | |
576 | return CMD_RET_FAILURE; | |
577 | } | |
578 | } | |
c654b517 SG |
579 | #endif |
580 | #ifdef CONFIG_OF_SYSTEM_SETUP | |
581 | /* Call the board-specific fixup routine */ | |
582 | else if (strncmp(argv[1], "sys", 3) == 0) { | |
583 | int err = ft_system_setup(working_fdt, gd->bd); | |
584 | ||
585 | if (err) { | |
586 | printf("Failed to add system information to FDT: %s\n", | |
587 | fdt_strerror(err)); | |
588 | return CMD_RET_FAILURE; | |
589 | } | |
590 | } | |
fd61e55d | 591 | #endif |
99dffca3 | 592 | /* Create a chosen node */ |
097dd3e0 | 593 | else if (strncmp(argv[1], "cho", 3) == 0) { |
f953d99f KG |
594 | unsigned long initrd_start = 0, initrd_end = 0; |
595 | ||
47e26b1b | 596 | if ((argc != 2) && (argc != 4)) |
4c12eeb8 | 597 | return CMD_RET_USAGE; |
f953d99f KG |
598 | |
599 | if (argc == 4) { | |
600 | initrd_start = simple_strtoul(argv[2], NULL, 16); | |
601 | initrd_end = simple_strtoul(argv[3], NULL, 16); | |
602 | } | |
603 | ||
bc6ed0f9 | 604 | fdt_chosen(working_fdt); |
dbe963ae | 605 | fdt_initrd(working_fdt, initrd_start, initrd_end); |
097dd3e0 HS |
606 | |
607 | #if defined(CONFIG_FIT_SIGNATURE) | |
608 | } else if (strncmp(argv[1], "che", 3) == 0) { | |
609 | int cfg_noffset; | |
610 | int ret; | |
611 | unsigned long addr; | |
612 | struct fdt_header *blob; | |
613 | ||
614 | if (!working_fdt) | |
615 | return CMD_RET_FAILURE; | |
616 | ||
617 | if (argc > 2) { | |
618 | addr = simple_strtoul(argv[2], NULL, 16); | |
619 | blob = map_sysmem(addr, 0); | |
620 | } else { | |
621 | blob = (struct fdt_header *)gd->fdt_blob; | |
622 | } | |
623 | if (!fdt_valid(&blob)) | |
624 | return 1; | |
625 | ||
626 | gd->fdt_blob = blob; | |
627 | cfg_noffset = fit_conf_get_node(working_fdt, NULL); | |
628 | if (!cfg_noffset) { | |
629 | printf("Could not find configuration node: %s\n", | |
630 | fdt_strerror(cfg_noffset)); | |
631 | return CMD_RET_FAILURE; | |
632 | } | |
633 | ||
634 | ret = fit_config_verify(working_fdt, cfg_noffset); | |
12df2abe | 635 | if (ret == 0) |
097dd3e0 HS |
636 | return CMD_RET_SUCCESS; |
637 | else | |
638 | return CMD_RET_FAILURE; | |
639 | #endif | |
640 | ||
40afac22 | 641 | } |
e6628ad7 MR |
642 | #ifdef CONFIG_OF_LIBFDT_OVERLAY |
643 | /* apply an overlay */ | |
644 | else if (strncmp(argv[1], "ap", 2) == 0) { | |
645 | unsigned long addr; | |
646 | struct fdt_header *blob; | |
647 | ||
648 | if (argc != 3) | |
649 | return CMD_RET_USAGE; | |
650 | ||
651 | if (!working_fdt) | |
652 | return CMD_RET_FAILURE; | |
653 | ||
654 | addr = simple_strtoul(argv[2], NULL, 16); | |
655 | blob = map_sysmem(addr, 0); | |
656 | if (!fdt_valid(&blob)) | |
657 | return CMD_RET_FAILURE; | |
658 | ||
659 | if (fdt_overlay_apply(working_fdt, blob)) | |
660 | return CMD_RET_FAILURE; | |
661 | } | |
662 | #endif | |
40afac22 KG |
663 | /* resize the fdt */ |
664 | else if (strncmp(argv[1], "re", 2) == 0) { | |
ef476836 HS |
665 | uint extrasize; |
666 | if (argc > 2) | |
667 | extrasize = simple_strtoul(argv[2], NULL, 16); | |
668 | else | |
669 | extrasize = 0; | |
670 | fdt_shrink_to_minimum(working_fdt, extrasize); | |
40afac22 KG |
671 | } |
672 | else { | |
99dffca3 | 673 | /* Unrecognized command */ |
4c12eeb8 | 674 | return CMD_RET_USAGE; |
781e09ee GVB |
675 | } |
676 | ||
677 | return 0; | |
678 | } | |
679 | ||
addd8ce8 | 680 | /****************************************************************************/ |
781e09ee | 681 | |
d14da913 SG |
682 | /** |
683 | * fdt_valid() - Check if an FDT is valid. If not, change it to NULL | |
684 | * | |
685 | * @blobp: Pointer to FDT pointer | |
686 | * @return 1 if OK, 0 if bad (in which case *blobp is set to NULL) | |
687 | */ | |
688 | static int fdt_valid(struct fdt_header **blobp) | |
781e09ee | 689 | { |
d14da913 SG |
690 | const void *blob = *blobp; |
691 | int err; | |
64dbbd40 | 692 | |
d14da913 | 693 | if (blob == NULL) { |
64dbbd40 | 694 | printf ("The address of the fdt is invalid (NULL).\n"); |
781e09ee GVB |
695 | return 0; |
696 | } | |
64dbbd40 | 697 | |
d14da913 | 698 | err = fdt_check_header(blob); |
64dbbd40 GVB |
699 | if (err == 0) |
700 | return 1; /* valid */ | |
701 | ||
702 | if (err < 0) { | |
25114033 | 703 | printf("libfdt fdt_check_header(): %s", fdt_strerror(err)); |
64dbbd40 GVB |
704 | /* |
705 | * Be more informative on bad version. | |
706 | */ | |
707 | if (err == -FDT_ERR_BADVERSION) { | |
d14da913 | 708 | if (fdt_version(blob) < |
e489b9c0 | 709 | FDT_FIRST_SUPPORTED_VERSION) { |
dc4b0b38 | 710 | printf (" - too old, fdt %d < %d", |
d14da913 | 711 | fdt_version(blob), |
addd8ce8 | 712 | FDT_FIRST_SUPPORTED_VERSION); |
64dbbd40 | 713 | } |
d14da913 | 714 | if (fdt_last_comp_version(blob) > |
e489b9c0 | 715 | FDT_LAST_SUPPORTED_VERSION) { |
dc4b0b38 | 716 | printf (" - too new, fdt %d > %d", |
d14da913 | 717 | fdt_version(blob), |
addd8ce8 | 718 | FDT_LAST_SUPPORTED_VERSION); |
64dbbd40 | 719 | } |
64dbbd40 GVB |
720 | } |
721 | printf("\n"); | |
d14da913 | 722 | *blobp = NULL; |
781e09ee GVB |
723 | return 0; |
724 | } | |
725 | return 1; | |
726 | } | |
727 | ||
addd8ce8 | 728 | /****************************************************************************/ |
781e09ee GVB |
729 | |
730 | /* | |
addd8ce8 | 731 | * Parse the user's input, partially heuristic. Valid formats: |
4abd844d | 732 | * <0x00112233 4 05> - an array of cells. Numbers follow standard |
53677ef1 | 733 | * C conventions. |
addd8ce8 GVB |
734 | * [00 11 22 .. nn] - byte stream |
735 | * "string" - If the the value doesn't start with "<" or "[", it is | |
736 | * treated as a string. Note that the quotes are | |
737 | * stripped by the parser before we get the string. | |
4abd844d | 738 | * newval: An array of strings containing the new property as specified |
53677ef1 | 739 | * on the command line |
4abd844d AF |
740 | * count: The number of strings in the array |
741 | * data: A bytestream to be placed in the property | |
742 | * len: The length of the resulting bytestream | |
addd8ce8 | 743 | */ |
54841ab5 | 744 | static int fdt_parse_prop(char * const *newval, int count, char *data, int *len) |
addd8ce8 GVB |
745 | { |
746 | char *cp; /* temporary char pointer */ | |
4abd844d | 747 | char *newp; /* temporary newval char pointer */ |
addd8ce8 | 748 | unsigned long tmp; /* holds converted values */ |
4abd844d | 749 | int stridx = 0; |
addd8ce8 | 750 | |
4abd844d AF |
751 | *len = 0; |
752 | newp = newval[0]; | |
753 | ||
754 | /* An array of cells */ | |
755 | if (*newp == '<') { | |
756 | newp++; | |
757 | while ((*newp != '>') && (stridx < count)) { | |
758 | /* | |
759 | * Keep searching until we find that last ">" | |
760 | * That way users don't have to escape the spaces | |
761 | */ | |
762 | if (*newp == '\0') { | |
763 | newp = newval[++stridx]; | |
764 | continue; | |
765 | } | |
766 | ||
767 | cp = newp; | |
768 | tmp = simple_strtoul(cp, &newp, 0); | |
088f1b19 | 769 | *(__be32 *)data = __cpu_to_be32(tmp); |
4abd844d AF |
770 | data += 4; |
771 | *len += 4; | |
772 | ||
773 | /* If the ptr didn't advance, something went wrong */ | |
774 | if ((newp - cp) <= 0) { | |
addd8ce8 GVB |
775 | printf("Sorry, I could not convert \"%s\"\n", |
776 | cp); | |
777 | return 1; | |
778 | } | |
4abd844d AF |
779 | |
780 | while (*newp == ' ') | |
781 | newp++; | |
addd8ce8 | 782 | } |
4abd844d AF |
783 | |
784 | if (*newp != '>') { | |
785 | printf("Unexpected character '%c'\n", *newp); | |
addd8ce8 GVB |
786 | return 1; |
787 | } | |
4abd844d | 788 | } else if (*newp == '[') { |
addd8ce8 GVB |
789 | /* |
790 | * Byte stream. Convert the values. | |
791 | */ | |
4abd844d | 792 | newp++; |
6e748ea0 | 793 | while ((stridx < count) && (*newp != ']')) { |
4abd844d AF |
794 | while (*newp == ' ') |
795 | newp++; | |
6e748ea0 | 796 | if (*newp == '\0') { |
4abd844d | 797 | newp = newval[++stridx]; |
6e748ea0 KM |
798 | continue; |
799 | } | |
800 | if (!isxdigit(*newp)) | |
801 | break; | |
802 | tmp = simple_strtoul(newp, &newp, 16); | |
803 | *data++ = tmp & 0xFF; | |
804 | *len = *len + 1; | |
addd8ce8 | 805 | } |
4abd844d | 806 | if (*newp != ']') { |
dc4b0b38 | 807 | printf("Unexpected character '%c'\n", *newp); |
addd8ce8 GVB |
808 | return 1; |
809 | } | |
810 | } else { | |
811 | /* | |
6e748ea0 KM |
812 | * Assume it is one or more strings. Copy it into our |
813 | * data area for convenience (including the | |
814 | * terminating '\0's). | |
addd8ce8 | 815 | */ |
4abd844d | 816 | while (stridx < count) { |
6e748ea0 | 817 | size_t length = strlen(newp) + 1; |
4abd844d | 818 | strcpy(data, newp); |
6e748ea0 KM |
819 | data += length; |
820 | *len += length; | |
4abd844d AF |
821 | newp = newval[++stridx]; |
822 | } | |
addd8ce8 GVB |
823 | } |
824 | return 0; | |
825 | } | |
826 | ||
827 | /****************************************************************************/ | |
828 | ||
829 | /* | |
830 | * Heuristic to guess if this is a string or concatenated strings. | |
781e09ee GVB |
831 | */ |
832 | ||
833 | static int is_printable_string(const void *data, int len) | |
834 | { | |
835 | const char *s = data; | |
836 | ||
837 | /* zero length is not */ | |
838 | if (len == 0) | |
839 | return 0; | |
840 | ||
8805beec JH |
841 | /* must terminate with zero or '\n' */ |
842 | if (s[len - 1] != '\0' && s[len - 1] != '\n') | |
781e09ee GVB |
843 | return 0; |
844 | ||
845 | /* printable or a null byte (concatenated strings) */ | |
8805beec | 846 | while (((*s == '\0') || isprint(*s) || isspace(*s)) && (len > 0)) { |
781e09ee GVB |
847 | /* |
848 | * If we see a null, there are three possibilities: | |
849 | * 1) If len == 1, it is the end of the string, printable | |
850 | * 2) Next character also a null, not printable. | |
851 | * 3) Next character not a null, continue to check. | |
852 | */ | |
853 | if (s[0] == '\0') { | |
854 | if (len == 1) | |
855 | return 1; | |
856 | if (s[1] == '\0') | |
857 | return 0; | |
858 | } | |
859 | s++; | |
860 | len--; | |
861 | } | |
862 | ||
863 | /* Not the null termination, or not done yet: not printable */ | |
864 | if (*s != '\0' || (len != 0)) | |
865 | return 0; | |
866 | ||
867 | return 1; | |
868 | } | |
869 | ||
addd8ce8 GVB |
870 | |
871 | /* | |
872 | * Print the property in the best format, a heuristic guess. Print as | |
873 | * a string, concatenated strings, a byte, word, double word, or (if all | |
874 | * else fails) it is printed as a stream of bytes. | |
875 | */ | |
781e09ee GVB |
876 | static void print_data(const void *data, int len) |
877 | { | |
878 | int j; | |
781e09ee GVB |
879 | |
880 | /* no data, don't print */ | |
881 | if (len == 0) | |
882 | return; | |
883 | ||
884 | /* | |
885 | * It is a string, but it may have multiple strings (embedded '\0's). | |
886 | */ | |
887 | if (is_printable_string(data, len)) { | |
888 | puts("\""); | |
889 | j = 0; | |
890 | while (j < len) { | |
891 | if (j > 0) | |
892 | puts("\", \""); | |
893 | puts(data); | |
894 | j += strlen(data) + 1; | |
895 | data += strlen(data) + 1; | |
896 | } | |
897 | puts("\""); | |
898 | return; | |
899 | } | |
900 | ||
4abd844d | 901 | if ((len %4) == 0) { |
f0a29d43 | 902 | if (len > CONFIG_CMD_FDT_MAX_DUMP) |
085b9c3a | 903 | printf("* 0x%p [0x%08x]", data, len); |
f0a29d43 | 904 | else { |
088f1b19 | 905 | const __be32 *p; |
f0a29d43 JH |
906 | |
907 | printf("<"); | |
908 | for (j = 0, p = data; j < len/4; j++) | |
909 | printf("0x%08x%s", fdt32_to_cpu(p[j]), | |
910 | j < (len/4 - 1) ? " " : ""); | |
911 | printf(">"); | |
912 | } | |
4abd844d | 913 | } else { /* anything else... hexdump */ |
f0a29d43 | 914 | if (len > CONFIG_CMD_FDT_MAX_DUMP) |
085b9c3a | 915 | printf("* 0x%p [0x%08x]", data, len); |
f0a29d43 JH |
916 | else { |
917 | const u8 *s; | |
918 | ||
919 | printf("["); | |
920 | for (j = 0, s = data; j < len; j++) | |
921 | printf("%02x%s", s[j], j < len - 1 ? " " : ""); | |
922 | printf("]"); | |
923 | } | |
781e09ee GVB |
924 | } |
925 | } | |
926 | ||
addd8ce8 GVB |
927 | /****************************************************************************/ |
928 | ||
929 | /* | |
e489b9c0 | 930 | * Recursively print (a portion of) the working_fdt. The depth parameter |
addd8ce8 GVB |
931 | * determines how deeply nested the fdt is printed. |
932 | */ | |
dbaf07ce | 933 | static int fdt_print(const char *pathp, char *prop, int depth) |
addd8ce8 | 934 | { |
addd8ce8 GVB |
935 | static char tabs[MAX_LEVEL+1] = |
936 | "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t" | |
937 | "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"; | |
dbaf07ce | 938 | const void *nodep; /* property node pointer */ |
addd8ce8 GVB |
939 | int nodeoffset; /* node offset from libfdt */ |
940 | int nextoffset; /* next node offset from libfdt */ | |
941 | uint32_t tag; /* tag */ | |
942 | int len; /* length of the property */ | |
943 | int level = 0; /* keep track of nesting level */ | |
91623528 | 944 | const struct fdt_property *fdt_prop; |
addd8ce8 | 945 | |
e489b9c0 | 946 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
addd8ce8 GVB |
947 | if (nodeoffset < 0) { |
948 | /* | |
949 | * Not found or something else bad happened. | |
950 | */ | |
8d04f02f | 951 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 952 | fdt_strerror(nodeoffset)); |
addd8ce8 GVB |
953 | return 1; |
954 | } | |
955 | /* | |
956 | * The user passed in a property as well as node path. | |
957 | * Print only the given property and then return. | |
958 | */ | |
959 | if (prop) { | |
e489b9c0 | 960 | nodep = fdt_getprop (working_fdt, nodeoffset, prop, &len); |
addd8ce8 GVB |
961 | if (len == 0) { |
962 | /* no property value */ | |
963 | printf("%s %s\n", pathp, prop); | |
964 | return 0; | |
965 | } else if (len > 0) { | |
28f384b1 | 966 | printf("%s = ", prop); |
addd8ce8 GVB |
967 | print_data (nodep, len); |
968 | printf("\n"); | |
969 | return 0; | |
970 | } else { | |
971 | printf ("libfdt fdt_getprop(): %s\n", | |
972 | fdt_strerror(len)); | |
973 | return 1; | |
974 | } | |
975 | } | |
976 | ||
977 | /* | |
978 | * The user passed in a node path and no property, | |
979 | * print the node and all subnodes. | |
980 | */ | |
addd8ce8 | 981 | while(level >= 0) { |
e489b9c0 | 982 | tag = fdt_next_tag(working_fdt, nodeoffset, &nextoffset); |
addd8ce8 GVB |
983 | switch(tag) { |
984 | case FDT_BEGIN_NODE: | |
e489b9c0 | 985 | pathp = fdt_get_name(working_fdt, nodeoffset, NULL); |
91623528 GVB |
986 | if (level <= depth) { |
987 | if (pathp == NULL) | |
988 | pathp = "/* NULL pointer error */"; | |
989 | if (*pathp == '\0') | |
990 | pathp = "/"; /* root is nameless */ | |
addd8ce8 GVB |
991 | printf("%s%s {\n", |
992 | &tabs[MAX_LEVEL - level], pathp); | |
91623528 | 993 | } |
addd8ce8 | 994 | level++; |
addd8ce8 | 995 | if (level >= MAX_LEVEL) { |
91623528 | 996 | printf("Nested too deep, aborting.\n"); |
addd8ce8 GVB |
997 | return 1; |
998 | } | |
999 | break; | |
1000 | case FDT_END_NODE: | |
1001 | level--; | |
91623528 | 1002 | if (level <= depth) |
addd8ce8 GVB |
1003 | printf("%s};\n", &tabs[MAX_LEVEL - level]); |
1004 | if (level == 0) { | |
1005 | level = -1; /* exit the loop */ | |
1006 | } | |
1007 | break; | |
1008 | case FDT_PROP: | |
e489b9c0 | 1009 | fdt_prop = fdt_offset_ptr(working_fdt, nodeoffset, |
91623528 | 1010 | sizeof(*fdt_prop)); |
e489b9c0 | 1011 | pathp = fdt_string(working_fdt, |
91623528 GVB |
1012 | fdt32_to_cpu(fdt_prop->nameoff)); |
1013 | len = fdt32_to_cpu(fdt_prop->len); | |
1014 | nodep = fdt_prop->data; | |
addd8ce8 GVB |
1015 | if (len < 0) { |
1016 | printf ("libfdt fdt_getprop(): %s\n", | |
1017 | fdt_strerror(len)); | |
1018 | return 1; | |
1019 | } else if (len == 0) { | |
1020 | /* the property has no value */ | |
91623528 | 1021 | if (level <= depth) |
addd8ce8 GVB |
1022 | printf("%s%s;\n", |
1023 | &tabs[MAX_LEVEL - level], | |
1024 | pathp); | |
1025 | } else { | |
91623528 | 1026 | if (level <= depth) { |
28f384b1 | 1027 | printf("%s%s = ", |
addd8ce8 GVB |
1028 | &tabs[MAX_LEVEL - level], |
1029 | pathp); | |
1030 | print_data (nodep, len); | |
1031 | printf(";\n"); | |
1032 | } | |
1033 | } | |
1034 | break; | |
1035 | case FDT_NOP: | |
dc4b0b38 | 1036 | printf("%s/* NOP */\n", &tabs[MAX_LEVEL - level]); |
addd8ce8 GVB |
1037 | break; |
1038 | case FDT_END: | |
1039 | return 1; | |
1040 | default: | |
91623528 | 1041 | if (level <= depth) |
addd8ce8 GVB |
1042 | printf("Unknown tag 0x%08X\n", tag); |
1043 | return 1; | |
1044 | } | |
1045 | nodeoffset = nextoffset; | |
1046 | } | |
1047 | return 0; | |
1048 | } | |
1049 | ||
781e09ee | 1050 | /********************************************************************/ |
088f1b19 KP |
1051 | #ifdef CONFIG_SYS_LONGHELP |
1052 | static char fdt_help_text[] = | |
4b578655 | 1053 | "addr [-c] <addr> [<length>] - Set the [control] fdt location to <addr>\n" |
e6628ad7 MR |
1054 | #ifdef CONFIG_OF_LIBFDT_OVERLAY |
1055 | "fdt apply <addr> - Apply overlay to the DT\n" | |
1056 | #endif | |
fd61e55d GVB |
1057 | #ifdef CONFIG_OF_BOARD_SETUP |
1058 | "fdt boardsetup - Do board-specific set up\n" | |
c654b517 SG |
1059 | #endif |
1060 | #ifdef CONFIG_OF_SYSTEM_SETUP | |
1061 | "fdt systemsetup - Do system-specific set up\n" | |
fd61e55d | 1062 | #endif |
238cb7a4 | 1063 | "fdt move <fdt> <newaddr> <length> - Copy the fdt to <addr> and make it active\n" |
ef476836 | 1064 | "fdt resize [<extrasize>] - Resize fdt to size + padding to 4k addr + some optional <extrasize> if needed\n" |
781e09ee GVB |
1065 | "fdt print <path> [<prop>] - Recursive print starting at <path>\n" |
1066 | "fdt list <path> [<prop>] - Print one level starting at <path>\n" | |
bc80295b JH |
1067 | "fdt get value <var> <path> <prop> - Get <property> and store in <var>\n" |
1068 | "fdt get name <var> <path> <index> - Get name of node <index> and store in <var>\n" | |
1069 | "fdt get addr <var> <path> <prop> - Get start address of <property> and store in <var>\n" | |
1070 | "fdt get size <var> <path> [<prop>] - Get size of [<property>] or num nodes and store in <var>\n" | |
781e09ee GVB |
1071 | "fdt set <path> <prop> [<val>] - Set <property> [to <val>]\n" |
1072 | "fdt mknode <path> <node> - Create a new node after <path>\n" | |
1073 | "fdt rm <path> [<prop>] - Delete the node or <property>\n" | |
804887e6 KG |
1074 | "fdt header - Display header info\n" |
1075 | "fdt bootcpu <id> - Set boot cpuid\n" | |
1076 | "fdt memory <addr> <size> - Add/Update memory node\n" | |
1077 | "fdt rsvmem print - Show current mem reserves\n" | |
1078 | "fdt rsvmem add <addr> <size> - Add a mem reserve\n" | |
1079 | "fdt rsvmem delete <index> - Delete a mem reserves\n" | |
f953d99f KG |
1080 | "fdt chosen [<start> <end>] - Add/update the /chosen branch in the tree\n" |
1081 | " <start>/<end> - initrd start/end addr\n" | |
097dd3e0 HS |
1082 | #if defined(CONFIG_FIT_SIGNATURE) |
1083 | "fdt checksign [<addr>] - check FIT signature\n" | |
1084 | " <start> - addr of key blob\n" | |
1085 | " default gd->fdt_blob\n" | |
1086 | #endif | |
1cc0a9f4 | 1087 | "NOTE: Dereference aliases by omitting the leading '/', " |
088f1b19 KP |
1088 | "e.g. fdt print ethernet0."; |
1089 | #endif | |
1090 | ||
1091 | U_BOOT_CMD( | |
1092 | fdt, 255, 0, do_fdt, | |
1093 | "flattened device tree utility commands", fdt_help_text | |
781e09ee | 1094 | ); |