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Commit | Line | Data |
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781e09ee GVB |
1 | /* |
2 | * (C) Copyright 2007 | |
3 | * Gerald Van Baren, Custom IDEAS, [email protected] | |
4 | * Based on code written by: | |
5 | * Pantelis Antoniou <[email protected]> and | |
6 | * Matthew McClintock <[email protected]> | |
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> |
a92fd657 | 18 | #include <asm/io.h> |
781e09ee GVB |
19 | |
20 | #define MAX_LEVEL 32 /* how deeply nested we will go */ | |
fd61e55d | 21 | #define SCRATCHPAD 1024 /* bytes of scratchpad memory */ |
f0a29d43 JH |
22 | #ifndef CONFIG_CMD_FDT_MAX_DUMP |
23 | #define CONFIG_CMD_FDT_MAX_DUMP 64 | |
24 | #endif | |
781e09ee GVB |
25 | |
26 | /* | |
27 | * Global data (for the gd->bd) | |
28 | */ | |
29 | DECLARE_GLOBAL_DATA_PTR; | |
30 | ||
d14da913 | 31 | static int fdt_valid(struct fdt_header **blobp); |
54841ab5 | 32 | static int fdt_parse_prop(char *const*newval, int count, char *data, int *len); |
dbaf07ce | 33 | static int fdt_print(const char *pathp, char *prop, int depth); |
bc80295b | 34 | static int is_printable_string(const void *data, int len); |
781e09ee | 35 | |
ae9e97fa GVB |
36 | /* |
37 | * The working_fdt points to our working flattened device tree. | |
38 | */ | |
39 | struct fdt_header *working_fdt; | |
40 | ||
54f9c866 KG |
41 | void set_working_fdt_addr(void *addr) |
42 | { | |
a92fd657 SG |
43 | void *buf; |
44 | ||
45 | buf = map_sysmem((ulong)addr, 0); | |
46 | working_fdt = buf; | |
bfc59966 | 47 | setenv_addr("fdtaddr", addr); |
54f9c866 KG |
48 | } |
49 | ||
bc80295b JH |
50 | /* |
51 | * Get a value from the fdt and format it to be set in the environment | |
52 | */ | |
53 | static int fdt_value_setenv(const void *nodep, int len, const char *var) | |
54 | { | |
55 | if (is_printable_string(nodep, len)) | |
56 | setenv(var, (void *)nodep); | |
57 | else if (len == 4) { | |
58 | char buf[11]; | |
59 | ||
60 | sprintf(buf, "0x%08X", *(uint32_t *)nodep); | |
61 | setenv(var, buf); | |
62 | } else if (len%4 == 0 && len <= 20) { | |
63 | /* Needed to print things like sha1 hashes. */ | |
64 | char buf[41]; | |
65 | int i; | |
66 | ||
67 | for (i = 0; i < len; i += sizeof(unsigned int)) | |
68 | sprintf(buf + (i * 2), "%08x", | |
69 | *(unsigned int *)(nodep + i)); | |
70 | setenv(var, buf); | |
71 | } else { | |
72 | printf("error: unprintable value\n"); | |
73 | return 1; | |
74 | } | |
75 | return 0; | |
76 | } | |
77 | ||
781e09ee GVB |
78 | /* |
79 | * Flattened Device Tree command, see the help for parameter definitions. | |
80 | */ | |
088f1b19 | 81 | static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
781e09ee | 82 | { |
47e26b1b | 83 | if (argc < 2) |
4c12eeb8 | 84 | return CMD_RET_USAGE; |
781e09ee | 85 | |
47e26b1b | 86 | /* |
781e09ee | 87 | * Set the address of the fdt |
47e26b1b | 88 | */ |
25114033 | 89 | if (argv[1][0] == 'a') { |
54f9c866 | 90 | unsigned long addr; |
4b578655 SG |
91 | int control = 0; |
92 | struct fdt_header *blob; | |
781e09ee GVB |
93 | /* |
94 | * Set the address [and length] of the fdt. | |
95 | */ | |
4b578655 SG |
96 | argc -= 2; |
97 | argv += 2; | |
98 | /* Temporary #ifdef - some archs don't have fdt_blob yet */ | |
99 | #ifdef CONFIG_OF_CONTROL | |
100 | if (argc && !strcmp(*argv, "-c")) { | |
101 | control = 1; | |
102 | argc--; | |
103 | argv++; | |
104 | } | |
105 | #endif | |
106 | if (argc == 0) { | |
107 | if (control) | |
108 | blob = (struct fdt_header *)gd->fdt_blob; | |
109 | else | |
110 | blob = working_fdt; | |
111 | if (!blob || !fdt_valid(&blob)) | |
7dbc38ad | 112 | return 1; |
4b578655 SG |
113 | printf("The address of the fdt is %#08lx\n", |
114 | control ? (ulong)blob : | |
115 | getenv_hex("fdtaddr", 0)); | |
7dbc38ad KG |
116 | return 0; |
117 | } | |
118 | ||
4b578655 | 119 | addr = simple_strtoul(argv[0], NULL, 16); |
a92fd657 | 120 | blob = map_sysmem(addr, 0); |
4b578655 | 121 | if (!fdt_valid(&blob)) |
781e09ee | 122 | return 1; |
4b578655 SG |
123 | if (control) |
124 | gd->fdt_blob = blob; | |
125 | else | |
90bac29a | 126 | set_working_fdt_addr((void *)blob); |
781e09ee | 127 | |
4b578655 | 128 | if (argc >= 2) { |
781e09ee GVB |
129 | int len; |
130 | int err; | |
131 | /* | |
132 | * Optional new length | |
133 | */ | |
4b578655 SG |
134 | len = simple_strtoul(argv[1], NULL, 16); |
135 | if (len < fdt_totalsize(blob)) { | |
addd8ce8 GVB |
136 | printf ("New length %d < existing length %d, " |
137 | "ignoring.\n", | |
4b578655 | 138 | len, fdt_totalsize(blob)); |
781e09ee GVB |
139 | } else { |
140 | /* | |
141 | * Open in place with a new length. | |
142 | */ | |
4b578655 | 143 | err = fdt_open_into(blob, blob, len); |
781e09ee | 144 | if (err != 0) { |
addd8ce8 GVB |
145 | printf ("libfdt fdt_open_into(): %s\n", |
146 | fdt_strerror(err)); | |
781e09ee GVB |
147 | } |
148 | } | |
149 | } | |
150 | ||
e02c9458 MV |
151 | return CMD_RET_SUCCESS; |
152 | } | |
153 | ||
154 | if (!working_fdt) { | |
155 | puts( | |
156 | "No FDT memory address configured. Please configure\n" | |
157 | "the FDT address via \"fdt addr <address>\" command.\n" | |
158 | "Aborting!\n"); | |
159 | return CMD_RET_FAILURE; | |
160 | } | |
161 | ||
47e26b1b | 162 | /* |
e489b9c0 | 163 | * Move the working_fdt |
47e26b1b | 164 | */ |
e02c9458 | 165 | if (strncmp(argv[1], "mo", 2) == 0) { |
781e09ee GVB |
166 | struct fdt_header *newaddr; |
167 | int len; | |
168 | int err; | |
169 | ||
47e26b1b | 170 | if (argc < 4) |
4c12eeb8 | 171 | return CMD_RET_USAGE; |
781e09ee GVB |
172 | |
173 | /* | |
174 | * Set the address and length of the fdt. | |
175 | */ | |
e489b9c0 | 176 | working_fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16); |
d14da913 | 177 | if (!fdt_valid(&working_fdt)) |
781e09ee | 178 | return 1; |
781e09ee | 179 | |
addd8ce8 | 180 | newaddr = (struct fdt_header *)simple_strtoul(argv[3],NULL,16); |
6be07cc1 GVB |
181 | |
182 | /* | |
183 | * If the user specifies a length, use that. Otherwise use the | |
184 | * current length. | |
185 | */ | |
186 | if (argc <= 4) { | |
e489b9c0 | 187 | len = fdt_totalsize(working_fdt); |
6be07cc1 GVB |
188 | } else { |
189 | len = simple_strtoul(argv[4], NULL, 16); | |
e489b9c0 | 190 | if (len < fdt_totalsize(working_fdt)) { |
addd8ce8 GVB |
191 | printf ("New length 0x%X < existing length " |
192 | "0x%X, aborting.\n", | |
e489b9c0 | 193 | len, fdt_totalsize(working_fdt)); |
6be07cc1 GVB |
194 | return 1; |
195 | } | |
781e09ee GVB |
196 | } |
197 | ||
198 | /* | |
199 | * Copy to the new location. | |
200 | */ | |
e489b9c0 | 201 | err = fdt_open_into(working_fdt, newaddr, len); |
781e09ee | 202 | if (err != 0) { |
addd8ce8 GVB |
203 | printf ("libfdt fdt_open_into(): %s\n", |
204 | fdt_strerror(err)); | |
781e09ee GVB |
205 | return 1; |
206 | } | |
e489b9c0 | 207 | working_fdt = newaddr; |
781e09ee | 208 | |
47e26b1b | 209 | /* |
25114033 | 210 | * Make a new node |
47e26b1b | 211 | */ |
2fb698bf | 212 | } else if (strncmp(argv[1], "mk", 2) == 0) { |
25114033 GVB |
213 | char *pathp; /* path */ |
214 | char *nodep; /* new node to add */ | |
215 | int nodeoffset; /* node offset from libfdt */ | |
216 | int err; | |
217 | ||
218 | /* | |
219 | * Parameters: Node path, new node to be appended to the path. | |
220 | */ | |
47e26b1b | 221 | if (argc < 4) |
4c12eeb8 | 222 | return CMD_RET_USAGE; |
25114033 GVB |
223 | |
224 | pathp = argv[2]; | |
225 | nodep = argv[3]; | |
226 | ||
e489b9c0 | 227 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
25114033 GVB |
228 | if (nodeoffset < 0) { |
229 | /* | |
230 | * Not found or something else bad happened. | |
231 | */ | |
8d04f02f | 232 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 233 | fdt_strerror(nodeoffset)); |
25114033 GVB |
234 | return 1; |
235 | } | |
e489b9c0 | 236 | err = fdt_add_subnode(working_fdt, nodeoffset, nodep); |
25114033 | 237 | if (err < 0) { |
addd8ce8 GVB |
238 | printf ("libfdt fdt_add_subnode(): %s\n", |
239 | fdt_strerror(err)); | |
25114033 GVB |
240 | return 1; |
241 | } | |
242 | ||
47e26b1b | 243 | /* |
e489b9c0 | 244 | * Set the value of a property in the working_fdt. |
47e26b1b | 245 | */ |
25114033 | 246 | } else if (argv[1][0] == 's') { |
781e09ee | 247 | char *pathp; /* path */ |
addd8ce8 | 248 | char *prop; /* property */ |
781e09ee | 249 | int nodeoffset; /* node offset from libfdt */ |
addd8ce8 GVB |
250 | static char data[SCRATCHPAD]; /* storage for the property */ |
251 | int len; /* new length of the property */ | |
252 | int ret; /* return value */ | |
781e09ee GVB |
253 | |
254 | /* | |
ea6d8be1 | 255 | * Parameters: Node path, property, optional value. |
781e09ee | 256 | */ |
47e26b1b | 257 | if (argc < 4) |
4c12eeb8 | 258 | return CMD_RET_USAGE; |
781e09ee GVB |
259 | |
260 | pathp = argv[2]; | |
261 | prop = argv[3]; | |
ea6d8be1 GVB |
262 | if (argc == 4) { |
263 | len = 0; | |
264 | } else { | |
4abd844d | 265 | ret = fdt_parse_prop(&argv[4], argc - 4, data, &len); |
ea6d8be1 GVB |
266 | if (ret != 0) |
267 | return ret; | |
268 | } | |
781e09ee | 269 | |
e489b9c0 | 270 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
25114033 | 271 | if (nodeoffset < 0) { |
781e09ee | 272 | /* |
25114033 | 273 | * Not found or something else bad happened. |
781e09ee | 274 | */ |
8d04f02f | 275 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 276 | fdt_strerror(nodeoffset)); |
781e09ee | 277 | return 1; |
25114033 | 278 | } |
25114033 | 279 | |
e489b9c0 | 280 | ret = fdt_setprop(working_fdt, nodeoffset, prop, data, len); |
25114033 GVB |
281 | if (ret < 0) { |
282 | printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret)); | |
283 | return 1; | |
781e09ee GVB |
284 | } |
285 | ||
bc80295b JH |
286 | /******************************************************************** |
287 | * Get the value of a property in the working_fdt. | |
288 | ********************************************************************/ | |
289 | } else if (argv[1][0] == 'g') { | |
290 | char *subcmd; /* sub-command */ | |
291 | char *pathp; /* path */ | |
292 | char *prop; /* property */ | |
293 | char *var; /* variable to store result */ | |
294 | int nodeoffset; /* node offset from libfdt */ | |
295 | const void *nodep; /* property node pointer */ | |
296 | int len = 0; /* new length of the property */ | |
297 | ||
298 | /* | |
299 | * Parameters: Node path, property, optional value. | |
300 | */ | |
301 | if (argc < 5) | |
302 | return CMD_RET_USAGE; | |
303 | ||
304 | subcmd = argv[2]; | |
305 | ||
306 | if (argc < 6 && subcmd[0] != 's') | |
307 | return CMD_RET_USAGE; | |
308 | ||
309 | var = argv[3]; | |
310 | pathp = argv[4]; | |
311 | prop = argv[5]; | |
312 | ||
313 | nodeoffset = fdt_path_offset(working_fdt, pathp); | |
314 | if (nodeoffset < 0) { | |
315 | /* | |
316 | * Not found or something else bad happened. | |
317 | */ | |
318 | printf("libfdt fdt_path_offset() returned %s\n", | |
319 | fdt_strerror(nodeoffset)); | |
320 | return 1; | |
321 | } | |
322 | ||
323 | if (subcmd[0] == 'n' || (subcmd[0] == 's' && argc == 5)) { | |
324 | int reqIndex = -1; | |
325 | int startDepth = fdt_node_depth( | |
326 | working_fdt, nodeoffset); | |
327 | int curDepth = startDepth; | |
328 | int curIndex = -1; | |
329 | int nextNodeOffset = fdt_next_node( | |
330 | working_fdt, nodeoffset, &curDepth); | |
331 | ||
332 | if (subcmd[0] == 'n') | |
333 | reqIndex = simple_strtoul(argv[5], NULL, 16); | |
334 | ||
335 | while (curDepth > startDepth) { | |
336 | if (curDepth == startDepth + 1) | |
337 | curIndex++; | |
338 | if (subcmd[0] == 'n' && curIndex == reqIndex) { | |
339 | const char *nodeName = fdt_get_name( | |
340 | working_fdt, nextNodeOffset, NULL); | |
341 | ||
342 | setenv(var, (char *)nodeName); | |
343 | return 0; | |
344 | } | |
345 | nextNodeOffset = fdt_next_node( | |
346 | working_fdt, nextNodeOffset, &curDepth); | |
347 | if (nextNodeOffset < 0) | |
348 | break; | |
349 | } | |
350 | if (subcmd[0] == 's') { | |
351 | /* get the num nodes at this level */ | |
bfc59966 | 352 | setenv_ulong(var, curIndex + 1); |
bc80295b JH |
353 | } else { |
354 | /* node index not found */ | |
355 | printf("libfdt node not found\n"); | |
356 | return 1; | |
357 | } | |
358 | } else { | |
359 | nodep = fdt_getprop( | |
360 | working_fdt, nodeoffset, prop, &len); | |
361 | if (len == 0) { | |
362 | /* no property value */ | |
363 | setenv(var, ""); | |
364 | return 0; | |
365 | } else if (len > 0) { | |
366 | if (subcmd[0] == 'v') { | |
367 | int ret; | |
368 | ||
369 | ret = fdt_value_setenv(nodep, len, var); | |
370 | if (ret != 0) | |
371 | return ret; | |
372 | } else if (subcmd[0] == 'a') { | |
373 | /* Get address */ | |
374 | char buf[11]; | |
375 | ||
085b9c3a | 376 | sprintf(buf, "0x%p", nodep); |
bc80295b JH |
377 | setenv(var, buf); |
378 | } else if (subcmd[0] == 's') { | |
379 | /* Get size */ | |
380 | char buf[11]; | |
381 | ||
382 | sprintf(buf, "0x%08X", len); | |
383 | setenv(var, buf); | |
384 | } else | |
385 | return CMD_RET_USAGE; | |
386 | return 0; | |
387 | } else { | |
388 | printf("libfdt fdt_getprop(): %s\n", | |
389 | fdt_strerror(len)); | |
390 | return 1; | |
391 | } | |
392 | } | |
393 | ||
47e26b1b | 394 | /* |
781e09ee | 395 | * Print (recursive) / List (single level) |
47e26b1b | 396 | */ |
25114033 | 397 | } else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) { |
781e09ee GVB |
398 | int depth = MAX_LEVEL; /* how deep to print */ |
399 | char *pathp; /* path */ | |
addd8ce8 GVB |
400 | char *prop; /* property */ |
401 | int ret; /* return value */ | |
f738b4a7 | 402 | static char root[2] = "/"; |
781e09ee GVB |
403 | |
404 | /* | |
405 | * list is an alias for print, but limited to 1 level | |
406 | */ | |
25114033 | 407 | if (argv[1][0] == 'l') { |
781e09ee GVB |
408 | depth = 1; |
409 | } | |
410 | ||
411 | /* | |
412 | * Get the starting path. The root node is an oddball, | |
413 | * the offset is zero and has no name. | |
414 | */ | |
f738b4a7 KG |
415 | if (argc == 2) |
416 | pathp = root; | |
417 | else | |
418 | pathp = argv[2]; | |
781e09ee GVB |
419 | if (argc > 3) |
420 | prop = argv[3]; | |
421 | else | |
422 | prop = NULL; | |
423 | ||
addd8ce8 GVB |
424 | ret = fdt_print(pathp, prop, depth); |
425 | if (ret != 0) | |
426 | return ret; | |
781e09ee | 427 | |
47e26b1b | 428 | /* |
781e09ee | 429 | * Remove a property/node |
47e26b1b | 430 | */ |
2fb698bf | 431 | } else if (strncmp(argv[1], "rm", 2) == 0) { |
781e09ee GVB |
432 | int nodeoffset; /* node offset from libfdt */ |
433 | int err; | |
434 | ||
435 | /* | |
436 | * Get the path. The root node is an oddball, the offset | |
437 | * is zero and has no name. | |
438 | */ | |
e489b9c0 | 439 | nodeoffset = fdt_path_offset (working_fdt, argv[2]); |
25114033 GVB |
440 | if (nodeoffset < 0) { |
441 | /* | |
442 | * Not found or something else bad happened. | |
443 | */ | |
8d04f02f | 444 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 445 | fdt_strerror(nodeoffset)); |
25114033 | 446 | return 1; |
781e09ee GVB |
447 | } |
448 | /* | |
449 | * Do the delete. A fourth parameter means delete a property, | |
450 | * otherwise delete the node. | |
451 | */ | |
452 | if (argc > 3) { | |
e489b9c0 | 453 | err = fdt_delprop(working_fdt, nodeoffset, argv[3]); |
781e09ee | 454 | if (err < 0) { |
addd8ce8 GVB |
455 | printf("libfdt fdt_delprop(): %s\n", |
456 | fdt_strerror(err)); | |
781e09ee GVB |
457 | return err; |
458 | } | |
459 | } else { | |
e489b9c0 | 460 | err = fdt_del_node(working_fdt, nodeoffset); |
781e09ee | 461 | if (err < 0) { |
addd8ce8 GVB |
462 | printf("libfdt fdt_del_node(): %s\n", |
463 | fdt_strerror(err)); | |
781e09ee GVB |
464 | return err; |
465 | } | |
466 | } | |
804887e6 | 467 | |
47e26b1b | 468 | /* |
804887e6 | 469 | * Display header info |
47e26b1b | 470 | */ |
804887e6 | 471 | } else if (argv[1][0] == 'h') { |
e489b9c0 KP |
472 | u32 version = fdt_version(working_fdt); |
473 | printf("magic:\t\t\t0x%x\n", fdt_magic(working_fdt)); | |
474 | printf("totalsize:\t\t0x%x (%d)\n", fdt_totalsize(working_fdt), | |
475 | fdt_totalsize(working_fdt)); | |
476 | printf("off_dt_struct:\t\t0x%x\n", | |
477 | fdt_off_dt_struct(working_fdt)); | |
478 | printf("off_dt_strings:\t\t0x%x\n", | |
479 | fdt_off_dt_strings(working_fdt)); | |
480 | printf("off_mem_rsvmap:\t\t0x%x\n", | |
481 | fdt_off_mem_rsvmap(working_fdt)); | |
804887e6 | 482 | printf("version:\t\t%d\n", version); |
e489b9c0 KP |
483 | printf("last_comp_version:\t%d\n", |
484 | fdt_last_comp_version(working_fdt)); | |
804887e6 KG |
485 | if (version >= 2) |
486 | printf("boot_cpuid_phys:\t0x%x\n", | |
e489b9c0 | 487 | fdt_boot_cpuid_phys(working_fdt)); |
804887e6 KG |
488 | if (version >= 3) |
489 | printf("size_dt_strings:\t0x%x\n", | |
e489b9c0 | 490 | fdt_size_dt_strings(working_fdt)); |
804887e6 KG |
491 | if (version >= 17) |
492 | printf("size_dt_struct:\t\t0x%x\n", | |
e489b9c0 KP |
493 | fdt_size_dt_struct(working_fdt)); |
494 | printf("number mem_rsv:\t\t0x%x\n", | |
495 | fdt_num_mem_rsv(working_fdt)); | |
804887e6 KG |
496 | printf("\n"); |
497 | ||
47e26b1b | 498 | /* |
804887e6 | 499 | * Set boot cpu id |
47e26b1b | 500 | */ |
2fb698bf | 501 | } else if (strncmp(argv[1], "boo", 3) == 0) { |
804887e6 | 502 | unsigned long tmp = simple_strtoul(argv[2], NULL, 16); |
e489b9c0 | 503 | fdt_set_boot_cpuid_phys(working_fdt, tmp); |
804887e6 | 504 | |
47e26b1b | 505 | /* |
804887e6 | 506 | * memory command |
47e26b1b | 507 | */ |
2fb698bf | 508 | } else if (strncmp(argv[1], "me", 2) == 0) { |
804887e6 KG |
509 | uint64_t addr, size; |
510 | int err; | |
4b142feb HS |
511 | addr = simple_strtoull(argv[2], NULL, 16); |
512 | size = simple_strtoull(argv[3], NULL, 16); | |
e489b9c0 | 513 | err = fdt_fixup_memory(working_fdt, addr, size); |
804887e6 KG |
514 | if (err < 0) |
515 | return err; | |
516 | ||
47e26b1b | 517 | /* |
804887e6 | 518 | * mem reserve commands |
47e26b1b | 519 | */ |
2fb698bf | 520 | } else if (strncmp(argv[1], "rs", 2) == 0) { |
804887e6 KG |
521 | if (argv[2][0] == 'p') { |
522 | uint64_t addr, size; | |
e489b9c0 | 523 | int total = fdt_num_mem_rsv(working_fdt); |
804887e6 KG |
524 | int j, err; |
525 | printf("index\t\t start\t\t size\n"); | |
526 | printf("-------------------------------" | |
527 | "-----------------\n"); | |
528 | for (j = 0; j < total; j++) { | |
e489b9c0 | 529 | err = fdt_get_mem_rsv(working_fdt, j, &addr, &size); |
804887e6 KG |
530 | if (err < 0) { |
531 | printf("libfdt fdt_get_mem_rsv(): %s\n", | |
532 | fdt_strerror(err)); | |
533 | return err; | |
534 | } | |
535 | printf(" %x\t%08x%08x\t%08x%08x\n", j, | |
536 | (u32)(addr >> 32), | |
537 | (u32)(addr & 0xffffffff), | |
538 | (u32)(size >> 32), | |
539 | (u32)(size & 0xffffffff)); | |
540 | } | |
541 | } else if (argv[2][0] == 'a') { | |
542 | uint64_t addr, size; | |
543 | int err; | |
804887e6 KG |
544 | addr = simple_strtoull(argv[3], NULL, 16); |
545 | size = simple_strtoull(argv[4], NULL, 16); | |
e489b9c0 | 546 | err = fdt_add_mem_rsv(working_fdt, addr, size); |
804887e6 KG |
547 | |
548 | if (err < 0) { | |
549 | printf("libfdt fdt_add_mem_rsv(): %s\n", | |
550 | fdt_strerror(err)); | |
551 | return err; | |
552 | } | |
553 | } else if (argv[2][0] == 'd') { | |
554 | unsigned long idx = simple_strtoul(argv[3], NULL, 16); | |
e489b9c0 | 555 | int err = fdt_del_mem_rsv(working_fdt, idx); |
804887e6 KG |
556 | |
557 | if (err < 0) { | |
558 | printf("libfdt fdt_del_mem_rsv(): %s\n", | |
559 | fdt_strerror(err)); | |
560 | return err; | |
561 | } | |
562 | } else { | |
563 | /* Unrecognized command */ | |
4c12eeb8 | 564 | return CMD_RET_USAGE; |
804887e6 | 565 | } |
99dffca3 | 566 | } |
fd61e55d | 567 | #ifdef CONFIG_OF_BOARD_SETUP |
99dffca3 | 568 | /* Call the board-specific fixup routine */ |
4ba98dc2 SG |
569 | else if (strncmp(argv[1], "boa", 3) == 0) { |
570 | int err = ft_board_setup(working_fdt, gd->bd); | |
571 | ||
572 | if (err) { | |
573 | printf("Failed to update board information in FDT: %s\n", | |
574 | fdt_strerror(err)); | |
575 | return CMD_RET_FAILURE; | |
576 | } | |
577 | } | |
c654b517 SG |
578 | #endif |
579 | #ifdef CONFIG_OF_SYSTEM_SETUP | |
580 | /* Call the board-specific fixup routine */ | |
581 | else if (strncmp(argv[1], "sys", 3) == 0) { | |
582 | int err = ft_system_setup(working_fdt, gd->bd); | |
583 | ||
584 | if (err) { | |
585 | printf("Failed to add system information to FDT: %s\n", | |
586 | fdt_strerror(err)); | |
587 | return CMD_RET_FAILURE; | |
588 | } | |
589 | } | |
fd61e55d | 590 | #endif |
99dffca3 | 591 | /* Create a chosen node */ |
097dd3e0 | 592 | else if (strncmp(argv[1], "cho", 3) == 0) { |
f953d99f KG |
593 | unsigned long initrd_start = 0, initrd_end = 0; |
594 | ||
47e26b1b | 595 | if ((argc != 2) && (argc != 4)) |
4c12eeb8 | 596 | return CMD_RET_USAGE; |
f953d99f KG |
597 | |
598 | if (argc == 4) { | |
599 | initrd_start = simple_strtoul(argv[2], NULL, 16); | |
600 | initrd_end = simple_strtoul(argv[3], NULL, 16); | |
601 | } | |
602 | ||
bc6ed0f9 | 603 | fdt_chosen(working_fdt); |
dbe963ae | 604 | fdt_initrd(working_fdt, initrd_start, initrd_end); |
097dd3e0 HS |
605 | |
606 | #if defined(CONFIG_FIT_SIGNATURE) | |
607 | } else if (strncmp(argv[1], "che", 3) == 0) { | |
608 | int cfg_noffset; | |
609 | int ret; | |
610 | unsigned long addr; | |
611 | struct fdt_header *blob; | |
612 | ||
613 | if (!working_fdt) | |
614 | return CMD_RET_FAILURE; | |
615 | ||
616 | if (argc > 2) { | |
617 | addr = simple_strtoul(argv[2], NULL, 16); | |
618 | blob = map_sysmem(addr, 0); | |
619 | } else { | |
620 | blob = (struct fdt_header *)gd->fdt_blob; | |
621 | } | |
622 | if (!fdt_valid(&blob)) | |
623 | return 1; | |
624 | ||
625 | gd->fdt_blob = blob; | |
626 | cfg_noffset = fit_conf_get_node(working_fdt, NULL); | |
627 | if (!cfg_noffset) { | |
628 | printf("Could not find configuration node: %s\n", | |
629 | fdt_strerror(cfg_noffset)); | |
630 | return CMD_RET_FAILURE; | |
631 | } | |
632 | ||
633 | ret = fit_config_verify(working_fdt, cfg_noffset); | |
12df2abe | 634 | if (ret == 0) |
097dd3e0 HS |
635 | return CMD_RET_SUCCESS; |
636 | else | |
637 | return CMD_RET_FAILURE; | |
638 | #endif | |
639 | ||
40afac22 KG |
640 | } |
641 | /* resize the fdt */ | |
642 | else if (strncmp(argv[1], "re", 2) == 0) { | |
5bf58ccc | 643 | fdt_shrink_to_minimum(working_fdt); |
40afac22 KG |
644 | } |
645 | else { | |
99dffca3 | 646 | /* Unrecognized command */ |
4c12eeb8 | 647 | return CMD_RET_USAGE; |
781e09ee GVB |
648 | } |
649 | ||
650 | return 0; | |
651 | } | |
652 | ||
addd8ce8 | 653 | /****************************************************************************/ |
781e09ee | 654 | |
d14da913 SG |
655 | /** |
656 | * fdt_valid() - Check if an FDT is valid. If not, change it to NULL | |
657 | * | |
658 | * @blobp: Pointer to FDT pointer | |
659 | * @return 1 if OK, 0 if bad (in which case *blobp is set to NULL) | |
660 | */ | |
661 | static int fdt_valid(struct fdt_header **blobp) | |
781e09ee | 662 | { |
d14da913 SG |
663 | const void *blob = *blobp; |
664 | int err; | |
64dbbd40 | 665 | |
d14da913 | 666 | if (blob == NULL) { |
64dbbd40 | 667 | printf ("The address of the fdt is invalid (NULL).\n"); |
781e09ee GVB |
668 | return 0; |
669 | } | |
64dbbd40 | 670 | |
d14da913 | 671 | err = fdt_check_header(blob); |
64dbbd40 GVB |
672 | if (err == 0) |
673 | return 1; /* valid */ | |
674 | ||
675 | if (err < 0) { | |
25114033 | 676 | printf("libfdt fdt_check_header(): %s", fdt_strerror(err)); |
64dbbd40 GVB |
677 | /* |
678 | * Be more informative on bad version. | |
679 | */ | |
680 | if (err == -FDT_ERR_BADVERSION) { | |
d14da913 | 681 | if (fdt_version(blob) < |
e489b9c0 | 682 | FDT_FIRST_SUPPORTED_VERSION) { |
dc4b0b38 | 683 | printf (" - too old, fdt %d < %d", |
d14da913 | 684 | fdt_version(blob), |
addd8ce8 | 685 | FDT_FIRST_SUPPORTED_VERSION); |
64dbbd40 | 686 | } |
d14da913 | 687 | if (fdt_last_comp_version(blob) > |
e489b9c0 | 688 | FDT_LAST_SUPPORTED_VERSION) { |
dc4b0b38 | 689 | printf (" - too new, fdt %d > %d", |
d14da913 | 690 | fdt_version(blob), |
addd8ce8 | 691 | FDT_LAST_SUPPORTED_VERSION); |
64dbbd40 | 692 | } |
64dbbd40 GVB |
693 | } |
694 | printf("\n"); | |
d14da913 | 695 | *blobp = NULL; |
781e09ee GVB |
696 | return 0; |
697 | } | |
698 | return 1; | |
699 | } | |
700 | ||
addd8ce8 | 701 | /****************************************************************************/ |
781e09ee GVB |
702 | |
703 | /* | |
addd8ce8 | 704 | * Parse the user's input, partially heuristic. Valid formats: |
4abd844d | 705 | * <0x00112233 4 05> - an array of cells. Numbers follow standard |
53677ef1 | 706 | * C conventions. |
addd8ce8 GVB |
707 | * [00 11 22 .. nn] - byte stream |
708 | * "string" - If the the value doesn't start with "<" or "[", it is | |
709 | * treated as a string. Note that the quotes are | |
710 | * stripped by the parser before we get the string. | |
4abd844d | 711 | * newval: An array of strings containing the new property as specified |
53677ef1 | 712 | * on the command line |
4abd844d AF |
713 | * count: The number of strings in the array |
714 | * data: A bytestream to be placed in the property | |
715 | * len: The length of the resulting bytestream | |
addd8ce8 | 716 | */ |
54841ab5 | 717 | static int fdt_parse_prop(char * const *newval, int count, char *data, int *len) |
addd8ce8 GVB |
718 | { |
719 | char *cp; /* temporary char pointer */ | |
4abd844d | 720 | char *newp; /* temporary newval char pointer */ |
addd8ce8 | 721 | unsigned long tmp; /* holds converted values */ |
4abd844d | 722 | int stridx = 0; |
addd8ce8 | 723 | |
4abd844d AF |
724 | *len = 0; |
725 | newp = newval[0]; | |
726 | ||
727 | /* An array of cells */ | |
728 | if (*newp == '<') { | |
729 | newp++; | |
730 | while ((*newp != '>') && (stridx < count)) { | |
731 | /* | |
732 | * Keep searching until we find that last ">" | |
733 | * That way users don't have to escape the spaces | |
734 | */ | |
735 | if (*newp == '\0') { | |
736 | newp = newval[++stridx]; | |
737 | continue; | |
738 | } | |
739 | ||
740 | cp = newp; | |
741 | tmp = simple_strtoul(cp, &newp, 0); | |
088f1b19 | 742 | *(__be32 *)data = __cpu_to_be32(tmp); |
4abd844d AF |
743 | data += 4; |
744 | *len += 4; | |
745 | ||
746 | /* If the ptr didn't advance, something went wrong */ | |
747 | if ((newp - cp) <= 0) { | |
addd8ce8 GVB |
748 | printf("Sorry, I could not convert \"%s\"\n", |
749 | cp); | |
750 | return 1; | |
751 | } | |
4abd844d AF |
752 | |
753 | while (*newp == ' ') | |
754 | newp++; | |
addd8ce8 | 755 | } |
4abd844d AF |
756 | |
757 | if (*newp != '>') { | |
758 | printf("Unexpected character '%c'\n", *newp); | |
addd8ce8 GVB |
759 | return 1; |
760 | } | |
4abd844d | 761 | } else if (*newp == '[') { |
addd8ce8 GVB |
762 | /* |
763 | * Byte stream. Convert the values. | |
764 | */ | |
4abd844d | 765 | newp++; |
6e748ea0 | 766 | while ((stridx < count) && (*newp != ']')) { |
4abd844d AF |
767 | while (*newp == ' ') |
768 | newp++; | |
6e748ea0 | 769 | if (*newp == '\0') { |
4abd844d | 770 | newp = newval[++stridx]; |
6e748ea0 KM |
771 | continue; |
772 | } | |
773 | if (!isxdigit(*newp)) | |
774 | break; | |
775 | tmp = simple_strtoul(newp, &newp, 16); | |
776 | *data++ = tmp & 0xFF; | |
777 | *len = *len + 1; | |
addd8ce8 | 778 | } |
4abd844d | 779 | if (*newp != ']') { |
dc4b0b38 | 780 | printf("Unexpected character '%c'\n", *newp); |
addd8ce8 GVB |
781 | return 1; |
782 | } | |
783 | } else { | |
784 | /* | |
6e748ea0 KM |
785 | * Assume it is one or more strings. Copy it into our |
786 | * data area for convenience (including the | |
787 | * terminating '\0's). | |
addd8ce8 | 788 | */ |
4abd844d | 789 | while (stridx < count) { |
6e748ea0 | 790 | size_t length = strlen(newp) + 1; |
4abd844d | 791 | strcpy(data, newp); |
6e748ea0 KM |
792 | data += length; |
793 | *len += length; | |
4abd844d AF |
794 | newp = newval[++stridx]; |
795 | } | |
addd8ce8 GVB |
796 | } |
797 | return 0; | |
798 | } | |
799 | ||
800 | /****************************************************************************/ | |
801 | ||
802 | /* | |
803 | * Heuristic to guess if this is a string or concatenated strings. | |
781e09ee GVB |
804 | */ |
805 | ||
806 | static int is_printable_string(const void *data, int len) | |
807 | { | |
808 | const char *s = data; | |
809 | ||
810 | /* zero length is not */ | |
811 | if (len == 0) | |
812 | return 0; | |
813 | ||
8805beec JH |
814 | /* must terminate with zero or '\n' */ |
815 | if (s[len - 1] != '\0' && s[len - 1] != '\n') | |
781e09ee GVB |
816 | return 0; |
817 | ||
818 | /* printable or a null byte (concatenated strings) */ | |
8805beec | 819 | while (((*s == '\0') || isprint(*s) || isspace(*s)) && (len > 0)) { |
781e09ee GVB |
820 | /* |
821 | * If we see a null, there are three possibilities: | |
822 | * 1) If len == 1, it is the end of the string, printable | |
823 | * 2) Next character also a null, not printable. | |
824 | * 3) Next character not a null, continue to check. | |
825 | */ | |
826 | if (s[0] == '\0') { | |
827 | if (len == 1) | |
828 | return 1; | |
829 | if (s[1] == '\0') | |
830 | return 0; | |
831 | } | |
832 | s++; | |
833 | len--; | |
834 | } | |
835 | ||
836 | /* Not the null termination, or not done yet: not printable */ | |
837 | if (*s != '\0' || (len != 0)) | |
838 | return 0; | |
839 | ||
840 | return 1; | |
841 | } | |
842 | ||
addd8ce8 GVB |
843 | |
844 | /* | |
845 | * Print the property in the best format, a heuristic guess. Print as | |
846 | * a string, concatenated strings, a byte, word, double word, or (if all | |
847 | * else fails) it is printed as a stream of bytes. | |
848 | */ | |
781e09ee GVB |
849 | static void print_data(const void *data, int len) |
850 | { | |
851 | int j; | |
781e09ee GVB |
852 | |
853 | /* no data, don't print */ | |
854 | if (len == 0) | |
855 | return; | |
856 | ||
857 | /* | |
858 | * It is a string, but it may have multiple strings (embedded '\0's). | |
859 | */ | |
860 | if (is_printable_string(data, len)) { | |
861 | puts("\""); | |
862 | j = 0; | |
863 | while (j < len) { | |
864 | if (j > 0) | |
865 | puts("\", \""); | |
866 | puts(data); | |
867 | j += strlen(data) + 1; | |
868 | data += strlen(data) + 1; | |
869 | } | |
870 | puts("\""); | |
871 | return; | |
872 | } | |
873 | ||
4abd844d | 874 | if ((len %4) == 0) { |
f0a29d43 | 875 | if (len > CONFIG_CMD_FDT_MAX_DUMP) |
085b9c3a | 876 | printf("* 0x%p [0x%08x]", data, len); |
f0a29d43 | 877 | else { |
088f1b19 | 878 | const __be32 *p; |
f0a29d43 JH |
879 | |
880 | printf("<"); | |
881 | for (j = 0, p = data; j < len/4; j++) | |
882 | printf("0x%08x%s", fdt32_to_cpu(p[j]), | |
883 | j < (len/4 - 1) ? " " : ""); | |
884 | printf(">"); | |
885 | } | |
4abd844d | 886 | } else { /* anything else... hexdump */ |
f0a29d43 | 887 | if (len > CONFIG_CMD_FDT_MAX_DUMP) |
085b9c3a | 888 | printf("* 0x%p [0x%08x]", data, len); |
f0a29d43 JH |
889 | else { |
890 | const u8 *s; | |
891 | ||
892 | printf("["); | |
893 | for (j = 0, s = data; j < len; j++) | |
894 | printf("%02x%s", s[j], j < len - 1 ? " " : ""); | |
895 | printf("]"); | |
896 | } | |
781e09ee GVB |
897 | } |
898 | } | |
899 | ||
addd8ce8 GVB |
900 | /****************************************************************************/ |
901 | ||
902 | /* | |
e489b9c0 | 903 | * Recursively print (a portion of) the working_fdt. The depth parameter |
addd8ce8 GVB |
904 | * determines how deeply nested the fdt is printed. |
905 | */ | |
dbaf07ce | 906 | static int fdt_print(const char *pathp, char *prop, int depth) |
addd8ce8 | 907 | { |
addd8ce8 GVB |
908 | static char tabs[MAX_LEVEL+1] = |
909 | "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t" | |
910 | "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"; | |
dbaf07ce | 911 | const void *nodep; /* property node pointer */ |
addd8ce8 GVB |
912 | int nodeoffset; /* node offset from libfdt */ |
913 | int nextoffset; /* next node offset from libfdt */ | |
914 | uint32_t tag; /* tag */ | |
915 | int len; /* length of the property */ | |
916 | int level = 0; /* keep track of nesting level */ | |
91623528 | 917 | const struct fdt_property *fdt_prop; |
addd8ce8 | 918 | |
e489b9c0 | 919 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
addd8ce8 GVB |
920 | if (nodeoffset < 0) { |
921 | /* | |
922 | * Not found or something else bad happened. | |
923 | */ | |
8d04f02f | 924 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 925 | fdt_strerror(nodeoffset)); |
addd8ce8 GVB |
926 | return 1; |
927 | } | |
928 | /* | |
929 | * The user passed in a property as well as node path. | |
930 | * Print only the given property and then return. | |
931 | */ | |
932 | if (prop) { | |
e489b9c0 | 933 | nodep = fdt_getprop (working_fdt, nodeoffset, prop, &len); |
addd8ce8 GVB |
934 | if (len == 0) { |
935 | /* no property value */ | |
936 | printf("%s %s\n", pathp, prop); | |
937 | return 0; | |
938 | } else if (len > 0) { | |
28f384b1 | 939 | printf("%s = ", prop); |
addd8ce8 GVB |
940 | print_data (nodep, len); |
941 | printf("\n"); | |
942 | return 0; | |
943 | } else { | |
944 | printf ("libfdt fdt_getprop(): %s\n", | |
945 | fdt_strerror(len)); | |
946 | return 1; | |
947 | } | |
948 | } | |
949 | ||
950 | /* | |
951 | * The user passed in a node path and no property, | |
952 | * print the node and all subnodes. | |
953 | */ | |
addd8ce8 | 954 | while(level >= 0) { |
e489b9c0 | 955 | tag = fdt_next_tag(working_fdt, nodeoffset, &nextoffset); |
addd8ce8 GVB |
956 | switch(tag) { |
957 | case FDT_BEGIN_NODE: | |
e489b9c0 | 958 | pathp = fdt_get_name(working_fdt, nodeoffset, NULL); |
91623528 GVB |
959 | if (level <= depth) { |
960 | if (pathp == NULL) | |
961 | pathp = "/* NULL pointer error */"; | |
962 | if (*pathp == '\0') | |
963 | pathp = "/"; /* root is nameless */ | |
addd8ce8 GVB |
964 | printf("%s%s {\n", |
965 | &tabs[MAX_LEVEL - level], pathp); | |
91623528 | 966 | } |
addd8ce8 | 967 | level++; |
addd8ce8 | 968 | if (level >= MAX_LEVEL) { |
91623528 | 969 | printf("Nested too deep, aborting.\n"); |
addd8ce8 GVB |
970 | return 1; |
971 | } | |
972 | break; | |
973 | case FDT_END_NODE: | |
974 | level--; | |
91623528 | 975 | if (level <= depth) |
addd8ce8 GVB |
976 | printf("%s};\n", &tabs[MAX_LEVEL - level]); |
977 | if (level == 0) { | |
978 | level = -1; /* exit the loop */ | |
979 | } | |
980 | break; | |
981 | case FDT_PROP: | |
e489b9c0 | 982 | fdt_prop = fdt_offset_ptr(working_fdt, nodeoffset, |
91623528 | 983 | sizeof(*fdt_prop)); |
e489b9c0 | 984 | pathp = fdt_string(working_fdt, |
91623528 GVB |
985 | fdt32_to_cpu(fdt_prop->nameoff)); |
986 | len = fdt32_to_cpu(fdt_prop->len); | |
987 | nodep = fdt_prop->data; | |
addd8ce8 GVB |
988 | if (len < 0) { |
989 | printf ("libfdt fdt_getprop(): %s\n", | |
990 | fdt_strerror(len)); | |
991 | return 1; | |
992 | } else if (len == 0) { | |
993 | /* the property has no value */ | |
91623528 | 994 | if (level <= depth) |
addd8ce8 GVB |
995 | printf("%s%s;\n", |
996 | &tabs[MAX_LEVEL - level], | |
997 | pathp); | |
998 | } else { | |
91623528 | 999 | if (level <= depth) { |
28f384b1 | 1000 | printf("%s%s = ", |
addd8ce8 GVB |
1001 | &tabs[MAX_LEVEL - level], |
1002 | pathp); | |
1003 | print_data (nodep, len); | |
1004 | printf(";\n"); | |
1005 | } | |
1006 | } | |
1007 | break; | |
1008 | case FDT_NOP: | |
dc4b0b38 | 1009 | printf("%s/* NOP */\n", &tabs[MAX_LEVEL - level]); |
addd8ce8 GVB |
1010 | break; |
1011 | case FDT_END: | |
1012 | return 1; | |
1013 | default: | |
91623528 | 1014 | if (level <= depth) |
addd8ce8 GVB |
1015 | printf("Unknown tag 0x%08X\n", tag); |
1016 | return 1; | |
1017 | } | |
1018 | nodeoffset = nextoffset; | |
1019 | } | |
1020 | return 0; | |
1021 | } | |
1022 | ||
781e09ee | 1023 | /********************************************************************/ |
088f1b19 KP |
1024 | #ifdef CONFIG_SYS_LONGHELP |
1025 | static char fdt_help_text[] = | |
4b578655 | 1026 | "addr [-c] <addr> [<length>] - Set the [control] fdt location to <addr>\n" |
fd61e55d GVB |
1027 | #ifdef CONFIG_OF_BOARD_SETUP |
1028 | "fdt boardsetup - Do board-specific set up\n" | |
c654b517 SG |
1029 | #endif |
1030 | #ifdef CONFIG_OF_SYSTEM_SETUP | |
1031 | "fdt systemsetup - Do system-specific set up\n" | |
fd61e55d | 1032 | #endif |
238cb7a4 | 1033 | "fdt move <fdt> <newaddr> <length> - Copy the fdt to <addr> and make it active\n" |
40afac22 | 1034 | "fdt resize - Resize fdt to size + padding to 4k addr\n" |
781e09ee GVB |
1035 | "fdt print <path> [<prop>] - Recursive print starting at <path>\n" |
1036 | "fdt list <path> [<prop>] - Print one level starting at <path>\n" | |
bc80295b JH |
1037 | "fdt get value <var> <path> <prop> - Get <property> and store in <var>\n" |
1038 | "fdt get name <var> <path> <index> - Get name of node <index> and store in <var>\n" | |
1039 | "fdt get addr <var> <path> <prop> - Get start address of <property> and store in <var>\n" | |
1040 | "fdt get size <var> <path> [<prop>] - Get size of [<property>] or num nodes and store in <var>\n" | |
781e09ee GVB |
1041 | "fdt set <path> <prop> [<val>] - Set <property> [to <val>]\n" |
1042 | "fdt mknode <path> <node> - Create a new node after <path>\n" | |
1043 | "fdt rm <path> [<prop>] - Delete the node or <property>\n" | |
804887e6 KG |
1044 | "fdt header - Display header info\n" |
1045 | "fdt bootcpu <id> - Set boot cpuid\n" | |
1046 | "fdt memory <addr> <size> - Add/Update memory node\n" | |
1047 | "fdt rsvmem print - Show current mem reserves\n" | |
1048 | "fdt rsvmem add <addr> <size> - Add a mem reserve\n" | |
1049 | "fdt rsvmem delete <index> - Delete a mem reserves\n" | |
f953d99f KG |
1050 | "fdt chosen [<start> <end>] - Add/update the /chosen branch in the tree\n" |
1051 | " <start>/<end> - initrd start/end addr\n" | |
097dd3e0 HS |
1052 | #if defined(CONFIG_FIT_SIGNATURE) |
1053 | "fdt checksign [<addr>] - check FIT signature\n" | |
1054 | " <start> - addr of key blob\n" | |
1055 | " default gd->fdt_blob\n" | |
1056 | #endif | |
109c30fb | 1057 | "NOTE: Dereference aliases by omiting the leading '/', " |
088f1b19 KP |
1058 | "e.g. fdt print ethernet0."; |
1059 | #endif | |
1060 | ||
1061 | U_BOOT_CMD( | |
1062 | fdt, 255, 0, do_fdt, | |
1063 | "flattened device tree utility commands", fdt_help_text | |
781e09ee | 1064 | ); |