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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 | ||
b05bf6c7 | 61 | sprintf(buf, "0x%08X", fdt32_to_cpu(*(fdt32_t *)nodep)); |
bc80295b JH |
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; |
f7f191ee FP |
209 | #ifdef CONFIG_OF_SYSTEM_SETUP |
210 | /* Call the board-specific fixup routine */ | |
211 | } else if (strncmp(argv[1], "sys", 3) == 0) { | |
212 | int err = ft_system_setup(working_fdt, gd->bd); | |
781e09ee | 213 | |
f7f191ee FP |
214 | if (err) { |
215 | printf("Failed to add system information to FDT: %s\n", | |
216 | fdt_strerror(err)); | |
217 | return CMD_RET_FAILURE; | |
218 | } | |
219 | #endif | |
47e26b1b | 220 | /* |
25114033 | 221 | * Make a new node |
47e26b1b | 222 | */ |
2fb698bf | 223 | } else if (strncmp(argv[1], "mk", 2) == 0) { |
25114033 GVB |
224 | char *pathp; /* path */ |
225 | char *nodep; /* new node to add */ | |
226 | int nodeoffset; /* node offset from libfdt */ | |
227 | int err; | |
228 | ||
229 | /* | |
230 | * Parameters: Node path, new node to be appended to the path. | |
231 | */ | |
47e26b1b | 232 | if (argc < 4) |
4c12eeb8 | 233 | return CMD_RET_USAGE; |
25114033 GVB |
234 | |
235 | pathp = argv[2]; | |
236 | nodep = argv[3]; | |
237 | ||
e489b9c0 | 238 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
25114033 GVB |
239 | if (nodeoffset < 0) { |
240 | /* | |
241 | * Not found or something else bad happened. | |
242 | */ | |
8d04f02f | 243 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 244 | fdt_strerror(nodeoffset)); |
25114033 GVB |
245 | return 1; |
246 | } | |
e489b9c0 | 247 | err = fdt_add_subnode(working_fdt, nodeoffset, nodep); |
25114033 | 248 | if (err < 0) { |
addd8ce8 GVB |
249 | printf ("libfdt fdt_add_subnode(): %s\n", |
250 | fdt_strerror(err)); | |
25114033 GVB |
251 | return 1; |
252 | } | |
253 | ||
47e26b1b | 254 | /* |
e489b9c0 | 255 | * Set the value of a property in the working_fdt. |
47e26b1b | 256 | */ |
25114033 | 257 | } else if (argv[1][0] == 's') { |
781e09ee | 258 | char *pathp; /* path */ |
addd8ce8 | 259 | char *prop; /* property */ |
781e09ee | 260 | int nodeoffset; /* node offset from libfdt */ |
addd8ce8 GVB |
261 | static char data[SCRATCHPAD]; /* storage for the property */ |
262 | int len; /* new length of the property */ | |
263 | int ret; /* return value */ | |
781e09ee GVB |
264 | |
265 | /* | |
ea6d8be1 | 266 | * Parameters: Node path, property, optional value. |
781e09ee | 267 | */ |
47e26b1b | 268 | if (argc < 4) |
4c12eeb8 | 269 | return CMD_RET_USAGE; |
781e09ee GVB |
270 | |
271 | pathp = argv[2]; | |
272 | prop = argv[3]; | |
ea6d8be1 GVB |
273 | if (argc == 4) { |
274 | len = 0; | |
275 | } else { | |
4abd844d | 276 | ret = fdt_parse_prop(&argv[4], argc - 4, data, &len); |
ea6d8be1 GVB |
277 | if (ret != 0) |
278 | return ret; | |
279 | } | |
781e09ee | 280 | |
e489b9c0 | 281 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
25114033 | 282 | if (nodeoffset < 0) { |
781e09ee | 283 | /* |
25114033 | 284 | * Not found or something else bad happened. |
781e09ee | 285 | */ |
8d04f02f | 286 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 287 | fdt_strerror(nodeoffset)); |
781e09ee | 288 | return 1; |
25114033 | 289 | } |
25114033 | 290 | |
e489b9c0 | 291 | ret = fdt_setprop(working_fdt, nodeoffset, prop, data, len); |
25114033 GVB |
292 | if (ret < 0) { |
293 | printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret)); | |
294 | return 1; | |
781e09ee GVB |
295 | } |
296 | ||
bc80295b JH |
297 | /******************************************************************** |
298 | * Get the value of a property in the working_fdt. | |
299 | ********************************************************************/ | |
300 | } else if (argv[1][0] == 'g') { | |
301 | char *subcmd; /* sub-command */ | |
302 | char *pathp; /* path */ | |
303 | char *prop; /* property */ | |
304 | char *var; /* variable to store result */ | |
305 | int nodeoffset; /* node offset from libfdt */ | |
306 | const void *nodep; /* property node pointer */ | |
307 | int len = 0; /* new length of the property */ | |
308 | ||
309 | /* | |
310 | * Parameters: Node path, property, optional value. | |
311 | */ | |
312 | if (argc < 5) | |
313 | return CMD_RET_USAGE; | |
314 | ||
315 | subcmd = argv[2]; | |
316 | ||
317 | if (argc < 6 && subcmd[0] != 's') | |
318 | return CMD_RET_USAGE; | |
319 | ||
320 | var = argv[3]; | |
321 | pathp = argv[4]; | |
322 | prop = argv[5]; | |
323 | ||
324 | nodeoffset = fdt_path_offset(working_fdt, pathp); | |
325 | if (nodeoffset < 0) { | |
326 | /* | |
327 | * Not found or something else bad happened. | |
328 | */ | |
329 | printf("libfdt fdt_path_offset() returned %s\n", | |
330 | fdt_strerror(nodeoffset)); | |
331 | return 1; | |
332 | } | |
333 | ||
334 | if (subcmd[0] == 'n' || (subcmd[0] == 's' && argc == 5)) { | |
335 | int reqIndex = -1; | |
336 | int startDepth = fdt_node_depth( | |
337 | working_fdt, nodeoffset); | |
338 | int curDepth = startDepth; | |
339 | int curIndex = -1; | |
340 | int nextNodeOffset = fdt_next_node( | |
341 | working_fdt, nodeoffset, &curDepth); | |
342 | ||
343 | if (subcmd[0] == 'n') | |
344 | reqIndex = simple_strtoul(argv[5], NULL, 16); | |
345 | ||
346 | while (curDepth > startDepth) { | |
347 | if (curDepth == startDepth + 1) | |
348 | curIndex++; | |
349 | if (subcmd[0] == 'n' && curIndex == reqIndex) { | |
350 | const char *nodeName = fdt_get_name( | |
351 | working_fdt, nextNodeOffset, NULL); | |
352 | ||
353 | setenv(var, (char *)nodeName); | |
354 | return 0; | |
355 | } | |
356 | nextNodeOffset = fdt_next_node( | |
357 | working_fdt, nextNodeOffset, &curDepth); | |
358 | if (nextNodeOffset < 0) | |
359 | break; | |
360 | } | |
361 | if (subcmd[0] == 's') { | |
362 | /* get the num nodes at this level */ | |
bfc59966 | 363 | setenv_ulong(var, curIndex + 1); |
bc80295b JH |
364 | } else { |
365 | /* node index not found */ | |
366 | printf("libfdt node not found\n"); | |
367 | return 1; | |
368 | } | |
369 | } else { | |
370 | nodep = fdt_getprop( | |
371 | working_fdt, nodeoffset, prop, &len); | |
372 | if (len == 0) { | |
373 | /* no property value */ | |
374 | setenv(var, ""); | |
375 | return 0; | |
376 | } else if (len > 0) { | |
377 | if (subcmd[0] == 'v') { | |
378 | int ret; | |
379 | ||
380 | ret = fdt_value_setenv(nodep, len, var); | |
381 | if (ret != 0) | |
382 | return ret; | |
383 | } else if (subcmd[0] == 'a') { | |
384 | /* Get address */ | |
385 | char buf[11]; | |
386 | ||
085b9c3a | 387 | sprintf(buf, "0x%p", nodep); |
bc80295b JH |
388 | setenv(var, buf); |
389 | } else if (subcmd[0] == 's') { | |
390 | /* Get size */ | |
391 | char buf[11]; | |
392 | ||
393 | sprintf(buf, "0x%08X", len); | |
394 | setenv(var, buf); | |
395 | } else | |
396 | return CMD_RET_USAGE; | |
397 | return 0; | |
398 | } else { | |
399 | printf("libfdt fdt_getprop(): %s\n", | |
400 | fdt_strerror(len)); | |
401 | return 1; | |
402 | } | |
403 | } | |
404 | ||
47e26b1b | 405 | /* |
781e09ee | 406 | * Print (recursive) / List (single level) |
47e26b1b | 407 | */ |
25114033 | 408 | } else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) { |
781e09ee GVB |
409 | int depth = MAX_LEVEL; /* how deep to print */ |
410 | char *pathp; /* path */ | |
addd8ce8 GVB |
411 | char *prop; /* property */ |
412 | int ret; /* return value */ | |
f738b4a7 | 413 | static char root[2] = "/"; |
781e09ee GVB |
414 | |
415 | /* | |
416 | * list is an alias for print, but limited to 1 level | |
417 | */ | |
25114033 | 418 | if (argv[1][0] == 'l') { |
781e09ee GVB |
419 | depth = 1; |
420 | } | |
421 | ||
422 | /* | |
423 | * Get the starting path. The root node is an oddball, | |
424 | * the offset is zero and has no name. | |
425 | */ | |
f738b4a7 KG |
426 | if (argc == 2) |
427 | pathp = root; | |
428 | else | |
429 | pathp = argv[2]; | |
781e09ee GVB |
430 | if (argc > 3) |
431 | prop = argv[3]; | |
432 | else | |
433 | prop = NULL; | |
434 | ||
addd8ce8 GVB |
435 | ret = fdt_print(pathp, prop, depth); |
436 | if (ret != 0) | |
437 | return ret; | |
781e09ee | 438 | |
47e26b1b | 439 | /* |
781e09ee | 440 | * Remove a property/node |
47e26b1b | 441 | */ |
2fb698bf | 442 | } else if (strncmp(argv[1], "rm", 2) == 0) { |
781e09ee GVB |
443 | int nodeoffset; /* node offset from libfdt */ |
444 | int err; | |
445 | ||
446 | /* | |
447 | * Get the path. The root node is an oddball, the offset | |
448 | * is zero and has no name. | |
449 | */ | |
e489b9c0 | 450 | nodeoffset = fdt_path_offset (working_fdt, argv[2]); |
25114033 GVB |
451 | if (nodeoffset < 0) { |
452 | /* | |
453 | * Not found or something else bad happened. | |
454 | */ | |
8d04f02f | 455 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 456 | fdt_strerror(nodeoffset)); |
25114033 | 457 | return 1; |
781e09ee GVB |
458 | } |
459 | /* | |
460 | * Do the delete. A fourth parameter means delete a property, | |
461 | * otherwise delete the node. | |
462 | */ | |
463 | if (argc > 3) { | |
e489b9c0 | 464 | err = fdt_delprop(working_fdt, nodeoffset, argv[3]); |
781e09ee | 465 | if (err < 0) { |
addd8ce8 GVB |
466 | printf("libfdt fdt_delprop(): %s\n", |
467 | fdt_strerror(err)); | |
781e09ee GVB |
468 | return err; |
469 | } | |
470 | } else { | |
e489b9c0 | 471 | err = fdt_del_node(working_fdt, nodeoffset); |
781e09ee | 472 | if (err < 0) { |
addd8ce8 GVB |
473 | printf("libfdt fdt_del_node(): %s\n", |
474 | fdt_strerror(err)); | |
781e09ee GVB |
475 | return err; |
476 | } | |
477 | } | |
804887e6 | 478 | |
47e26b1b | 479 | /* |
804887e6 | 480 | * Display header info |
47e26b1b | 481 | */ |
804887e6 | 482 | } else if (argv[1][0] == 'h') { |
e489b9c0 KP |
483 | u32 version = fdt_version(working_fdt); |
484 | printf("magic:\t\t\t0x%x\n", fdt_magic(working_fdt)); | |
485 | printf("totalsize:\t\t0x%x (%d)\n", fdt_totalsize(working_fdt), | |
486 | fdt_totalsize(working_fdt)); | |
487 | printf("off_dt_struct:\t\t0x%x\n", | |
488 | fdt_off_dt_struct(working_fdt)); | |
489 | printf("off_dt_strings:\t\t0x%x\n", | |
490 | fdt_off_dt_strings(working_fdt)); | |
491 | printf("off_mem_rsvmap:\t\t0x%x\n", | |
492 | fdt_off_mem_rsvmap(working_fdt)); | |
804887e6 | 493 | printf("version:\t\t%d\n", version); |
e489b9c0 KP |
494 | printf("last_comp_version:\t%d\n", |
495 | fdt_last_comp_version(working_fdt)); | |
804887e6 KG |
496 | if (version >= 2) |
497 | printf("boot_cpuid_phys:\t0x%x\n", | |
e489b9c0 | 498 | fdt_boot_cpuid_phys(working_fdt)); |
804887e6 KG |
499 | if (version >= 3) |
500 | printf("size_dt_strings:\t0x%x\n", | |
e489b9c0 | 501 | fdt_size_dt_strings(working_fdt)); |
804887e6 KG |
502 | if (version >= 17) |
503 | printf("size_dt_struct:\t\t0x%x\n", | |
e489b9c0 KP |
504 | fdt_size_dt_struct(working_fdt)); |
505 | printf("number mem_rsv:\t\t0x%x\n", | |
506 | fdt_num_mem_rsv(working_fdt)); | |
804887e6 KG |
507 | printf("\n"); |
508 | ||
47e26b1b | 509 | /* |
804887e6 | 510 | * Set boot cpu id |
47e26b1b | 511 | */ |
2fb698bf | 512 | } else if (strncmp(argv[1], "boo", 3) == 0) { |
804887e6 | 513 | unsigned long tmp = simple_strtoul(argv[2], NULL, 16); |
e489b9c0 | 514 | fdt_set_boot_cpuid_phys(working_fdt, tmp); |
804887e6 | 515 | |
47e26b1b | 516 | /* |
804887e6 | 517 | * memory command |
47e26b1b | 518 | */ |
2fb698bf | 519 | } else if (strncmp(argv[1], "me", 2) == 0) { |
804887e6 KG |
520 | uint64_t addr, size; |
521 | int err; | |
4b142feb HS |
522 | addr = simple_strtoull(argv[2], NULL, 16); |
523 | size = simple_strtoull(argv[3], NULL, 16); | |
e489b9c0 | 524 | err = fdt_fixup_memory(working_fdt, addr, size); |
804887e6 KG |
525 | if (err < 0) |
526 | return err; | |
527 | ||
47e26b1b | 528 | /* |
804887e6 | 529 | * mem reserve commands |
47e26b1b | 530 | */ |
2fb698bf | 531 | } else if (strncmp(argv[1], "rs", 2) == 0) { |
804887e6 KG |
532 | if (argv[2][0] == 'p') { |
533 | uint64_t addr, size; | |
e489b9c0 | 534 | int total = fdt_num_mem_rsv(working_fdt); |
804887e6 KG |
535 | int j, err; |
536 | printf("index\t\t start\t\t size\n"); | |
537 | printf("-------------------------------" | |
538 | "-----------------\n"); | |
539 | for (j = 0; j < total; j++) { | |
e489b9c0 | 540 | err = fdt_get_mem_rsv(working_fdt, j, &addr, &size); |
804887e6 KG |
541 | if (err < 0) { |
542 | printf("libfdt fdt_get_mem_rsv(): %s\n", | |
543 | fdt_strerror(err)); | |
544 | return err; | |
545 | } | |
546 | printf(" %x\t%08x%08x\t%08x%08x\n", j, | |
547 | (u32)(addr >> 32), | |
548 | (u32)(addr & 0xffffffff), | |
549 | (u32)(size >> 32), | |
550 | (u32)(size & 0xffffffff)); | |
551 | } | |
552 | } else if (argv[2][0] == 'a') { | |
553 | uint64_t addr, size; | |
554 | int err; | |
804887e6 KG |
555 | addr = simple_strtoull(argv[3], NULL, 16); |
556 | size = simple_strtoull(argv[4], NULL, 16); | |
e489b9c0 | 557 | err = fdt_add_mem_rsv(working_fdt, addr, size); |
804887e6 KG |
558 | |
559 | if (err < 0) { | |
560 | printf("libfdt fdt_add_mem_rsv(): %s\n", | |
561 | fdt_strerror(err)); | |
562 | return err; | |
563 | } | |
564 | } else if (argv[2][0] == 'd') { | |
565 | unsigned long idx = simple_strtoul(argv[3], NULL, 16); | |
e489b9c0 | 566 | int err = fdt_del_mem_rsv(working_fdt, idx); |
804887e6 KG |
567 | |
568 | if (err < 0) { | |
569 | printf("libfdt fdt_del_mem_rsv(): %s\n", | |
570 | fdt_strerror(err)); | |
571 | return err; | |
572 | } | |
573 | } else { | |
574 | /* Unrecognized command */ | |
4c12eeb8 | 575 | return CMD_RET_USAGE; |
804887e6 | 576 | } |
99dffca3 | 577 | } |
fd61e55d | 578 | #ifdef CONFIG_OF_BOARD_SETUP |
99dffca3 | 579 | /* Call the board-specific fixup routine */ |
4ba98dc2 SG |
580 | else if (strncmp(argv[1], "boa", 3) == 0) { |
581 | int err = ft_board_setup(working_fdt, gd->bd); | |
582 | ||
583 | if (err) { | |
584 | printf("Failed to update board information in FDT: %s\n", | |
585 | fdt_strerror(err)); | |
586 | return CMD_RET_FAILURE; | |
587 | } | |
588 | } | |
fd61e55d | 589 | #endif |
99dffca3 | 590 | /* Create a chosen node */ |
097dd3e0 | 591 | else if (strncmp(argv[1], "cho", 3) == 0) { |
f953d99f KG |
592 | unsigned long initrd_start = 0, initrd_end = 0; |
593 | ||
47e26b1b | 594 | if ((argc != 2) && (argc != 4)) |
4c12eeb8 | 595 | return CMD_RET_USAGE; |
f953d99f KG |
596 | |
597 | if (argc == 4) { | |
598 | initrd_start = simple_strtoul(argv[2], NULL, 16); | |
599 | initrd_end = simple_strtoul(argv[3], NULL, 16); | |
600 | } | |
601 | ||
bc6ed0f9 | 602 | fdt_chosen(working_fdt); |
dbe963ae | 603 | fdt_initrd(working_fdt, initrd_start, initrd_end); |
097dd3e0 HS |
604 | |
605 | #if defined(CONFIG_FIT_SIGNATURE) | |
606 | } else if (strncmp(argv[1], "che", 3) == 0) { | |
607 | int cfg_noffset; | |
608 | int ret; | |
609 | unsigned long addr; | |
610 | struct fdt_header *blob; | |
611 | ||
612 | if (!working_fdt) | |
613 | return CMD_RET_FAILURE; | |
614 | ||
615 | if (argc > 2) { | |
616 | addr = simple_strtoul(argv[2], NULL, 16); | |
617 | blob = map_sysmem(addr, 0); | |
618 | } else { | |
619 | blob = (struct fdt_header *)gd->fdt_blob; | |
620 | } | |
621 | if (!fdt_valid(&blob)) | |
622 | return 1; | |
623 | ||
624 | gd->fdt_blob = blob; | |
625 | cfg_noffset = fit_conf_get_node(working_fdt, NULL); | |
626 | if (!cfg_noffset) { | |
627 | printf("Could not find configuration node: %s\n", | |
628 | fdt_strerror(cfg_noffset)); | |
629 | return CMD_RET_FAILURE; | |
630 | } | |
631 | ||
632 | ret = fit_config_verify(working_fdt, cfg_noffset); | |
12df2abe | 633 | if (ret == 0) |
097dd3e0 HS |
634 | return CMD_RET_SUCCESS; |
635 | else | |
636 | return CMD_RET_FAILURE; | |
637 | #endif | |
638 | ||
40afac22 | 639 | } |
e6628ad7 MR |
640 | #ifdef CONFIG_OF_LIBFDT_OVERLAY |
641 | /* apply an overlay */ | |
642 | else if (strncmp(argv[1], "ap", 2) == 0) { | |
643 | unsigned long addr; | |
644 | struct fdt_header *blob; | |
082b1414 | 645 | int ret; |
e6628ad7 MR |
646 | |
647 | if (argc != 3) | |
648 | return CMD_RET_USAGE; | |
649 | ||
650 | if (!working_fdt) | |
651 | return CMD_RET_FAILURE; | |
652 | ||
653 | addr = simple_strtoul(argv[2], NULL, 16); | |
654 | blob = map_sysmem(addr, 0); | |
655 | if (!fdt_valid(&blob)) | |
656 | return CMD_RET_FAILURE; | |
657 | ||
082b1414 SA |
658 | ret = fdt_overlay_apply(working_fdt, blob); |
659 | if (ret) { | |
660 | printf("fdt_overlay_apply(): %s\n", fdt_strerror(ret)); | |
e6628ad7 | 661 | return CMD_RET_FAILURE; |
082b1414 | 662 | } |
e6628ad7 MR |
663 | } |
664 | #endif | |
40afac22 KG |
665 | /* resize the fdt */ |
666 | else if (strncmp(argv[1], "re", 2) == 0) { | |
ef476836 HS |
667 | uint extrasize; |
668 | if (argc > 2) | |
669 | extrasize = simple_strtoul(argv[2], NULL, 16); | |
670 | else | |
671 | extrasize = 0; | |
672 | fdt_shrink_to_minimum(working_fdt, extrasize); | |
40afac22 KG |
673 | } |
674 | else { | |
99dffca3 | 675 | /* Unrecognized command */ |
4c12eeb8 | 676 | return CMD_RET_USAGE; |
781e09ee GVB |
677 | } |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
addd8ce8 | 682 | /****************************************************************************/ |
781e09ee | 683 | |
d14da913 SG |
684 | /** |
685 | * fdt_valid() - Check if an FDT is valid. If not, change it to NULL | |
686 | * | |
687 | * @blobp: Pointer to FDT pointer | |
688 | * @return 1 if OK, 0 if bad (in which case *blobp is set to NULL) | |
689 | */ | |
690 | static int fdt_valid(struct fdt_header **blobp) | |
781e09ee | 691 | { |
d14da913 SG |
692 | const void *blob = *blobp; |
693 | int err; | |
64dbbd40 | 694 | |
d14da913 | 695 | if (blob == NULL) { |
64dbbd40 | 696 | printf ("The address of the fdt is invalid (NULL).\n"); |
781e09ee GVB |
697 | return 0; |
698 | } | |
64dbbd40 | 699 | |
d14da913 | 700 | err = fdt_check_header(blob); |
64dbbd40 GVB |
701 | if (err == 0) |
702 | return 1; /* valid */ | |
703 | ||
704 | if (err < 0) { | |
25114033 | 705 | printf("libfdt fdt_check_header(): %s", fdt_strerror(err)); |
64dbbd40 GVB |
706 | /* |
707 | * Be more informative on bad version. | |
708 | */ | |
709 | if (err == -FDT_ERR_BADVERSION) { | |
d14da913 | 710 | if (fdt_version(blob) < |
e489b9c0 | 711 | FDT_FIRST_SUPPORTED_VERSION) { |
dc4b0b38 | 712 | printf (" - too old, fdt %d < %d", |
d14da913 | 713 | fdt_version(blob), |
addd8ce8 | 714 | FDT_FIRST_SUPPORTED_VERSION); |
64dbbd40 | 715 | } |
d14da913 | 716 | if (fdt_last_comp_version(blob) > |
e489b9c0 | 717 | FDT_LAST_SUPPORTED_VERSION) { |
dc4b0b38 | 718 | printf (" - too new, fdt %d > %d", |
d14da913 | 719 | fdt_version(blob), |
addd8ce8 | 720 | FDT_LAST_SUPPORTED_VERSION); |
64dbbd40 | 721 | } |
64dbbd40 GVB |
722 | } |
723 | printf("\n"); | |
d14da913 | 724 | *blobp = NULL; |
781e09ee GVB |
725 | return 0; |
726 | } | |
727 | return 1; | |
728 | } | |
729 | ||
addd8ce8 | 730 | /****************************************************************************/ |
781e09ee GVB |
731 | |
732 | /* | |
addd8ce8 | 733 | * Parse the user's input, partially heuristic. Valid formats: |
4abd844d | 734 | * <0x00112233 4 05> - an array of cells. Numbers follow standard |
53677ef1 | 735 | * C conventions. |
addd8ce8 GVB |
736 | * [00 11 22 .. nn] - byte stream |
737 | * "string" - If the the value doesn't start with "<" or "[", it is | |
738 | * treated as a string. Note that the quotes are | |
739 | * stripped by the parser before we get the string. | |
4abd844d | 740 | * newval: An array of strings containing the new property as specified |
53677ef1 | 741 | * on the command line |
4abd844d AF |
742 | * count: The number of strings in the array |
743 | * data: A bytestream to be placed in the property | |
744 | * len: The length of the resulting bytestream | |
addd8ce8 | 745 | */ |
54841ab5 | 746 | static int fdt_parse_prop(char * const *newval, int count, char *data, int *len) |
addd8ce8 GVB |
747 | { |
748 | char *cp; /* temporary char pointer */ | |
4abd844d | 749 | char *newp; /* temporary newval char pointer */ |
addd8ce8 | 750 | unsigned long tmp; /* holds converted values */ |
4abd844d | 751 | int stridx = 0; |
addd8ce8 | 752 | |
4abd844d AF |
753 | *len = 0; |
754 | newp = newval[0]; | |
755 | ||
756 | /* An array of cells */ | |
757 | if (*newp == '<') { | |
758 | newp++; | |
759 | while ((*newp != '>') && (stridx < count)) { | |
760 | /* | |
761 | * Keep searching until we find that last ">" | |
762 | * That way users don't have to escape the spaces | |
763 | */ | |
764 | if (*newp == '\0') { | |
765 | newp = newval[++stridx]; | |
766 | continue; | |
767 | } | |
768 | ||
769 | cp = newp; | |
770 | tmp = simple_strtoul(cp, &newp, 0); | |
b05bf6c7 | 771 | *(fdt32_t *)data = cpu_to_fdt32(tmp); |
4abd844d AF |
772 | data += 4; |
773 | *len += 4; | |
774 | ||
775 | /* If the ptr didn't advance, something went wrong */ | |
776 | if ((newp - cp) <= 0) { | |
addd8ce8 GVB |
777 | printf("Sorry, I could not convert \"%s\"\n", |
778 | cp); | |
779 | return 1; | |
780 | } | |
4abd844d AF |
781 | |
782 | while (*newp == ' ') | |
783 | newp++; | |
addd8ce8 | 784 | } |
4abd844d AF |
785 | |
786 | if (*newp != '>') { | |
787 | printf("Unexpected character '%c'\n", *newp); | |
addd8ce8 GVB |
788 | return 1; |
789 | } | |
4abd844d | 790 | } else if (*newp == '[') { |
addd8ce8 GVB |
791 | /* |
792 | * Byte stream. Convert the values. | |
793 | */ | |
4abd844d | 794 | newp++; |
6e748ea0 | 795 | while ((stridx < count) && (*newp != ']')) { |
4abd844d AF |
796 | while (*newp == ' ') |
797 | newp++; | |
6e748ea0 | 798 | if (*newp == '\0') { |
4abd844d | 799 | newp = newval[++stridx]; |
6e748ea0 KM |
800 | continue; |
801 | } | |
802 | if (!isxdigit(*newp)) | |
803 | break; | |
804 | tmp = simple_strtoul(newp, &newp, 16); | |
805 | *data++ = tmp & 0xFF; | |
806 | *len = *len + 1; | |
addd8ce8 | 807 | } |
4abd844d | 808 | if (*newp != ']') { |
dc4b0b38 | 809 | printf("Unexpected character '%c'\n", *newp); |
addd8ce8 GVB |
810 | return 1; |
811 | } | |
812 | } else { | |
813 | /* | |
6e748ea0 KM |
814 | * Assume it is one or more strings. Copy it into our |
815 | * data area for convenience (including the | |
816 | * terminating '\0's). | |
addd8ce8 | 817 | */ |
4abd844d | 818 | while (stridx < count) { |
6e748ea0 | 819 | size_t length = strlen(newp) + 1; |
4abd844d | 820 | strcpy(data, newp); |
6e748ea0 KM |
821 | data += length; |
822 | *len += length; | |
4abd844d AF |
823 | newp = newval[++stridx]; |
824 | } | |
addd8ce8 GVB |
825 | } |
826 | return 0; | |
827 | } | |
828 | ||
829 | /****************************************************************************/ | |
830 | ||
831 | /* | |
832 | * Heuristic to guess if this is a string or concatenated strings. | |
781e09ee GVB |
833 | */ |
834 | ||
835 | static int is_printable_string(const void *data, int len) | |
836 | { | |
837 | const char *s = data; | |
838 | ||
839 | /* zero length is not */ | |
840 | if (len == 0) | |
841 | return 0; | |
842 | ||
8805beec JH |
843 | /* must terminate with zero or '\n' */ |
844 | if (s[len - 1] != '\0' && s[len - 1] != '\n') | |
781e09ee GVB |
845 | return 0; |
846 | ||
847 | /* printable or a null byte (concatenated strings) */ | |
8805beec | 848 | while (((*s == '\0') || isprint(*s) || isspace(*s)) && (len > 0)) { |
781e09ee GVB |
849 | /* |
850 | * If we see a null, there are three possibilities: | |
851 | * 1) If len == 1, it is the end of the string, printable | |
852 | * 2) Next character also a null, not printable. | |
853 | * 3) Next character not a null, continue to check. | |
854 | */ | |
855 | if (s[0] == '\0') { | |
856 | if (len == 1) | |
857 | return 1; | |
858 | if (s[1] == '\0') | |
859 | return 0; | |
860 | } | |
861 | s++; | |
862 | len--; | |
863 | } | |
864 | ||
865 | /* Not the null termination, or not done yet: not printable */ | |
866 | if (*s != '\0' || (len != 0)) | |
867 | return 0; | |
868 | ||
869 | return 1; | |
870 | } | |
871 | ||
addd8ce8 GVB |
872 | |
873 | /* | |
874 | * Print the property in the best format, a heuristic guess. Print as | |
875 | * a string, concatenated strings, a byte, word, double word, or (if all | |
876 | * else fails) it is printed as a stream of bytes. | |
877 | */ | |
781e09ee GVB |
878 | static void print_data(const void *data, int len) |
879 | { | |
880 | int j; | |
781e09ee GVB |
881 | |
882 | /* no data, don't print */ | |
883 | if (len == 0) | |
884 | return; | |
885 | ||
886 | /* | |
887 | * It is a string, but it may have multiple strings (embedded '\0's). | |
888 | */ | |
889 | if (is_printable_string(data, len)) { | |
890 | puts("\""); | |
891 | j = 0; | |
892 | while (j < len) { | |
893 | if (j > 0) | |
894 | puts("\", \""); | |
895 | puts(data); | |
896 | j += strlen(data) + 1; | |
897 | data += strlen(data) + 1; | |
898 | } | |
899 | puts("\""); | |
900 | return; | |
901 | } | |
902 | ||
4abd844d | 903 | if ((len %4) == 0) { |
f0a29d43 | 904 | if (len > CONFIG_CMD_FDT_MAX_DUMP) |
085b9c3a | 905 | printf("* 0x%p [0x%08x]", data, len); |
f0a29d43 | 906 | else { |
088f1b19 | 907 | const __be32 *p; |
f0a29d43 JH |
908 | |
909 | printf("<"); | |
910 | for (j = 0, p = data; j < len/4; j++) | |
911 | printf("0x%08x%s", fdt32_to_cpu(p[j]), | |
912 | j < (len/4 - 1) ? " " : ""); | |
913 | printf(">"); | |
914 | } | |
4abd844d | 915 | } else { /* anything else... hexdump */ |
f0a29d43 | 916 | if (len > CONFIG_CMD_FDT_MAX_DUMP) |
085b9c3a | 917 | printf("* 0x%p [0x%08x]", data, len); |
f0a29d43 JH |
918 | else { |
919 | const u8 *s; | |
920 | ||
921 | printf("["); | |
922 | for (j = 0, s = data; j < len; j++) | |
923 | printf("%02x%s", s[j], j < len - 1 ? " " : ""); | |
924 | printf("]"); | |
925 | } | |
781e09ee GVB |
926 | } |
927 | } | |
928 | ||
addd8ce8 GVB |
929 | /****************************************************************************/ |
930 | ||
931 | /* | |
e489b9c0 | 932 | * Recursively print (a portion of) the working_fdt. The depth parameter |
addd8ce8 GVB |
933 | * determines how deeply nested the fdt is printed. |
934 | */ | |
dbaf07ce | 935 | static int fdt_print(const char *pathp, char *prop, int depth) |
addd8ce8 | 936 | { |
addd8ce8 GVB |
937 | static char tabs[MAX_LEVEL+1] = |
938 | "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t" | |
939 | "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"; | |
dbaf07ce | 940 | const void *nodep; /* property node pointer */ |
addd8ce8 GVB |
941 | int nodeoffset; /* node offset from libfdt */ |
942 | int nextoffset; /* next node offset from libfdt */ | |
943 | uint32_t tag; /* tag */ | |
944 | int len; /* length of the property */ | |
945 | int level = 0; /* keep track of nesting level */ | |
91623528 | 946 | const struct fdt_property *fdt_prop; |
addd8ce8 | 947 | |
e489b9c0 | 948 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
addd8ce8 GVB |
949 | if (nodeoffset < 0) { |
950 | /* | |
951 | * Not found or something else bad happened. | |
952 | */ | |
8d04f02f | 953 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 954 | fdt_strerror(nodeoffset)); |
addd8ce8 GVB |
955 | return 1; |
956 | } | |
957 | /* | |
958 | * The user passed in a property as well as node path. | |
959 | * Print only the given property and then return. | |
960 | */ | |
961 | if (prop) { | |
e489b9c0 | 962 | nodep = fdt_getprop (working_fdt, nodeoffset, prop, &len); |
addd8ce8 GVB |
963 | if (len == 0) { |
964 | /* no property value */ | |
965 | printf("%s %s\n", pathp, prop); | |
966 | return 0; | |
967 | } else if (len > 0) { | |
28f384b1 | 968 | printf("%s = ", prop); |
addd8ce8 GVB |
969 | print_data (nodep, len); |
970 | printf("\n"); | |
971 | return 0; | |
972 | } else { | |
973 | printf ("libfdt fdt_getprop(): %s\n", | |
974 | fdt_strerror(len)); | |
975 | return 1; | |
976 | } | |
977 | } | |
978 | ||
979 | /* | |
980 | * The user passed in a node path and no property, | |
981 | * print the node and all subnodes. | |
982 | */ | |
addd8ce8 | 983 | while(level >= 0) { |
e489b9c0 | 984 | tag = fdt_next_tag(working_fdt, nodeoffset, &nextoffset); |
addd8ce8 GVB |
985 | switch(tag) { |
986 | case FDT_BEGIN_NODE: | |
e489b9c0 | 987 | pathp = fdt_get_name(working_fdt, nodeoffset, NULL); |
91623528 GVB |
988 | if (level <= depth) { |
989 | if (pathp == NULL) | |
990 | pathp = "/* NULL pointer error */"; | |
991 | if (*pathp == '\0') | |
992 | pathp = "/"; /* root is nameless */ | |
addd8ce8 GVB |
993 | printf("%s%s {\n", |
994 | &tabs[MAX_LEVEL - level], pathp); | |
91623528 | 995 | } |
addd8ce8 | 996 | level++; |
addd8ce8 | 997 | if (level >= MAX_LEVEL) { |
91623528 | 998 | printf("Nested too deep, aborting.\n"); |
addd8ce8 GVB |
999 | return 1; |
1000 | } | |
1001 | break; | |
1002 | case FDT_END_NODE: | |
1003 | level--; | |
91623528 | 1004 | if (level <= depth) |
addd8ce8 GVB |
1005 | printf("%s};\n", &tabs[MAX_LEVEL - level]); |
1006 | if (level == 0) { | |
1007 | level = -1; /* exit the loop */ | |
1008 | } | |
1009 | break; | |
1010 | case FDT_PROP: | |
e489b9c0 | 1011 | fdt_prop = fdt_offset_ptr(working_fdt, nodeoffset, |
91623528 | 1012 | sizeof(*fdt_prop)); |
e489b9c0 | 1013 | pathp = fdt_string(working_fdt, |
91623528 GVB |
1014 | fdt32_to_cpu(fdt_prop->nameoff)); |
1015 | len = fdt32_to_cpu(fdt_prop->len); | |
1016 | nodep = fdt_prop->data; | |
addd8ce8 GVB |
1017 | if (len < 0) { |
1018 | printf ("libfdt fdt_getprop(): %s\n", | |
1019 | fdt_strerror(len)); | |
1020 | return 1; | |
1021 | } else if (len == 0) { | |
1022 | /* the property has no value */ | |
91623528 | 1023 | if (level <= depth) |
addd8ce8 GVB |
1024 | printf("%s%s;\n", |
1025 | &tabs[MAX_LEVEL - level], | |
1026 | pathp); | |
1027 | } else { | |
91623528 | 1028 | if (level <= depth) { |
28f384b1 | 1029 | printf("%s%s = ", |
addd8ce8 GVB |
1030 | &tabs[MAX_LEVEL - level], |
1031 | pathp); | |
1032 | print_data (nodep, len); | |
1033 | printf(";\n"); | |
1034 | } | |
1035 | } | |
1036 | break; | |
1037 | case FDT_NOP: | |
dc4b0b38 | 1038 | printf("%s/* NOP */\n", &tabs[MAX_LEVEL - level]); |
addd8ce8 GVB |
1039 | break; |
1040 | case FDT_END: | |
1041 | return 1; | |
1042 | default: | |
91623528 | 1043 | if (level <= depth) |
addd8ce8 GVB |
1044 | printf("Unknown tag 0x%08X\n", tag); |
1045 | return 1; | |
1046 | } | |
1047 | nodeoffset = nextoffset; | |
1048 | } | |
1049 | return 0; | |
1050 | } | |
1051 | ||
781e09ee | 1052 | /********************************************************************/ |
088f1b19 KP |
1053 | #ifdef CONFIG_SYS_LONGHELP |
1054 | static char fdt_help_text[] = | |
4b578655 | 1055 | "addr [-c] <addr> [<length>] - Set the [control] fdt location to <addr>\n" |
e6628ad7 MR |
1056 | #ifdef CONFIG_OF_LIBFDT_OVERLAY |
1057 | "fdt apply <addr> - Apply overlay to the DT\n" | |
1058 | #endif | |
fd61e55d GVB |
1059 | #ifdef CONFIG_OF_BOARD_SETUP |
1060 | "fdt boardsetup - Do board-specific set up\n" | |
c654b517 SG |
1061 | #endif |
1062 | #ifdef CONFIG_OF_SYSTEM_SETUP | |
1063 | "fdt systemsetup - Do system-specific set up\n" | |
fd61e55d | 1064 | #endif |
238cb7a4 | 1065 | "fdt move <fdt> <newaddr> <length> - Copy the fdt to <addr> and make it active\n" |
ef476836 | 1066 | "fdt resize [<extrasize>] - Resize fdt to size + padding to 4k addr + some optional <extrasize> if needed\n" |
781e09ee GVB |
1067 | "fdt print <path> [<prop>] - Recursive print starting at <path>\n" |
1068 | "fdt list <path> [<prop>] - Print one level starting at <path>\n" | |
bc80295b JH |
1069 | "fdt get value <var> <path> <prop> - Get <property> and store in <var>\n" |
1070 | "fdt get name <var> <path> <index> - Get name of node <index> and store in <var>\n" | |
1071 | "fdt get addr <var> <path> <prop> - Get start address of <property> and store in <var>\n" | |
1072 | "fdt get size <var> <path> [<prop>] - Get size of [<property>] or num nodes and store in <var>\n" | |
781e09ee GVB |
1073 | "fdt set <path> <prop> [<val>] - Set <property> [to <val>]\n" |
1074 | "fdt mknode <path> <node> - Create a new node after <path>\n" | |
1075 | "fdt rm <path> [<prop>] - Delete the node or <property>\n" | |
804887e6 KG |
1076 | "fdt header - Display header info\n" |
1077 | "fdt bootcpu <id> - Set boot cpuid\n" | |
1078 | "fdt memory <addr> <size> - Add/Update memory node\n" | |
1079 | "fdt rsvmem print - Show current mem reserves\n" | |
1080 | "fdt rsvmem add <addr> <size> - Add a mem reserve\n" | |
1081 | "fdt rsvmem delete <index> - Delete a mem reserves\n" | |
f953d99f KG |
1082 | "fdt chosen [<start> <end>] - Add/update the /chosen branch in the tree\n" |
1083 | " <start>/<end> - initrd start/end addr\n" | |
097dd3e0 HS |
1084 | #if defined(CONFIG_FIT_SIGNATURE) |
1085 | "fdt checksign [<addr>] - check FIT signature\n" | |
1086 | " <start> - addr of key blob\n" | |
1087 | " default gd->fdt_blob\n" | |
1088 | #endif | |
1cc0a9f4 | 1089 | "NOTE: Dereference aliases by omitting the leading '/', " |
088f1b19 KP |
1090 | "e.g. fdt print ethernet0."; |
1091 | #endif | |
1092 | ||
1093 | U_BOOT_CMD( | |
1094 | fdt, 255, 0, do_fdt, | |
1095 | "flattened device tree utility commands", fdt_help_text | |
781e09ee | 1096 | ); |