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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 | * | |
8 | * See file CREDITS for list of people who contributed to this | |
9 | * project. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License as | |
13 | * published by the Free Software Foundation; either version 2 of | |
14 | * the License, or (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
24 | * MA 02111-1307 USA | |
25 | */ | |
26 | ||
27 | #include <common.h> | |
28 | #include <command.h> | |
29 | #include <linux/ctype.h> | |
30 | #include <linux/types.h> | |
781e09ee | 31 | #include <asm/global_data.h> |
781e09ee | 32 | #include <libfdt.h> |
64dbbd40 | 33 | #include <fdt_support.h> |
781e09ee GVB |
34 | |
35 | #define MAX_LEVEL 32 /* how deeply nested we will go */ | |
fd61e55d | 36 | #define SCRATCHPAD 1024 /* bytes of scratchpad memory */ |
f0a29d43 JH |
37 | #ifndef CONFIG_CMD_FDT_MAX_DUMP |
38 | #define CONFIG_CMD_FDT_MAX_DUMP 64 | |
39 | #endif | |
781e09ee GVB |
40 | |
41 | /* | |
42 | * Global data (for the gd->bd) | |
43 | */ | |
44 | DECLARE_GLOBAL_DATA_PTR; | |
45 | ||
d14da913 | 46 | static int fdt_valid(struct fdt_header **blobp); |
54841ab5 | 47 | static int fdt_parse_prop(char *const*newval, int count, char *data, int *len); |
dbaf07ce | 48 | static int fdt_print(const char *pathp, char *prop, int depth); |
bc80295b | 49 | static int is_printable_string(const void *data, int len); |
781e09ee | 50 | |
ae9e97fa GVB |
51 | /* |
52 | * The working_fdt points to our working flattened device tree. | |
53 | */ | |
54 | struct fdt_header *working_fdt; | |
55 | ||
54f9c866 KG |
56 | void set_working_fdt_addr(void *addr) |
57 | { | |
54f9c866 | 58 | working_fdt = addr; |
bfc59966 | 59 | setenv_addr("fdtaddr", addr); |
54f9c866 KG |
60 | } |
61 | ||
bc80295b JH |
62 | /* |
63 | * Get a value from the fdt and format it to be set in the environment | |
64 | */ | |
65 | static int fdt_value_setenv(const void *nodep, int len, const char *var) | |
66 | { | |
67 | if (is_printable_string(nodep, len)) | |
68 | setenv(var, (void *)nodep); | |
69 | else if (len == 4) { | |
70 | char buf[11]; | |
71 | ||
72 | sprintf(buf, "0x%08X", *(uint32_t *)nodep); | |
73 | setenv(var, buf); | |
74 | } else if (len%4 == 0 && len <= 20) { | |
75 | /* Needed to print things like sha1 hashes. */ | |
76 | char buf[41]; | |
77 | int i; | |
78 | ||
79 | for (i = 0; i < len; i += sizeof(unsigned int)) | |
80 | sprintf(buf + (i * 2), "%08x", | |
81 | *(unsigned int *)(nodep + i)); | |
82 | setenv(var, buf); | |
83 | } else { | |
84 | printf("error: unprintable value\n"); | |
85 | return 1; | |
86 | } | |
87 | return 0; | |
88 | } | |
89 | ||
781e09ee GVB |
90 | /* |
91 | * Flattened Device Tree command, see the help for parameter definitions. | |
92 | */ | |
088f1b19 | 93 | static int do_fdt(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
781e09ee | 94 | { |
47e26b1b | 95 | if (argc < 2) |
4c12eeb8 | 96 | return CMD_RET_USAGE; |
781e09ee | 97 | |
47e26b1b | 98 | /* |
781e09ee | 99 | * Set the address of the fdt |
47e26b1b | 100 | */ |
25114033 | 101 | if (argv[1][0] == 'a') { |
54f9c866 | 102 | unsigned long addr; |
4b578655 SG |
103 | int control = 0; |
104 | struct fdt_header *blob; | |
781e09ee GVB |
105 | /* |
106 | * Set the address [and length] of the fdt. | |
107 | */ | |
4b578655 SG |
108 | argc -= 2; |
109 | argv += 2; | |
110 | /* Temporary #ifdef - some archs don't have fdt_blob yet */ | |
111 | #ifdef CONFIG_OF_CONTROL | |
112 | if (argc && !strcmp(*argv, "-c")) { | |
113 | control = 1; | |
114 | argc--; | |
115 | argv++; | |
116 | } | |
117 | #endif | |
118 | if (argc == 0) { | |
119 | if (control) | |
120 | blob = (struct fdt_header *)gd->fdt_blob; | |
121 | else | |
122 | blob = working_fdt; | |
123 | if (!blob || !fdt_valid(&blob)) | |
7dbc38ad | 124 | return 1; |
4b578655 SG |
125 | printf("The address of the fdt is %#08lx\n", |
126 | control ? (ulong)blob : | |
127 | getenv_hex("fdtaddr", 0)); | |
7dbc38ad KG |
128 | return 0; |
129 | } | |
130 | ||
4b578655 SG |
131 | addr = simple_strtoul(argv[0], NULL, 16); |
132 | blob = (struct fdt_header *)addr; | |
133 | if (!fdt_valid(&blob)) | |
781e09ee | 134 | return 1; |
4b578655 SG |
135 | if (control) |
136 | gd->fdt_blob = blob; | |
137 | else | |
138 | set_working_fdt_addr((void *)addr); | |
781e09ee | 139 | |
4b578655 | 140 | if (argc >= 2) { |
781e09ee GVB |
141 | int len; |
142 | int err; | |
143 | /* | |
144 | * Optional new length | |
145 | */ | |
4b578655 SG |
146 | len = simple_strtoul(argv[1], NULL, 16); |
147 | if (len < fdt_totalsize(blob)) { | |
addd8ce8 GVB |
148 | printf ("New length %d < existing length %d, " |
149 | "ignoring.\n", | |
4b578655 | 150 | len, fdt_totalsize(blob)); |
781e09ee GVB |
151 | } else { |
152 | /* | |
153 | * Open in place with a new length. | |
154 | */ | |
4b578655 | 155 | err = fdt_open_into(blob, blob, len); |
781e09ee | 156 | if (err != 0) { |
addd8ce8 GVB |
157 | printf ("libfdt fdt_open_into(): %s\n", |
158 | fdt_strerror(err)); | |
781e09ee GVB |
159 | } |
160 | } | |
161 | } | |
162 | ||
e02c9458 MV |
163 | return CMD_RET_SUCCESS; |
164 | } | |
165 | ||
166 | if (!working_fdt) { | |
167 | puts( | |
168 | "No FDT memory address configured. Please configure\n" | |
169 | "the FDT address via \"fdt addr <address>\" command.\n" | |
170 | "Aborting!\n"); | |
171 | return CMD_RET_FAILURE; | |
172 | } | |
173 | ||
47e26b1b | 174 | /* |
e489b9c0 | 175 | * Move the working_fdt |
47e26b1b | 176 | */ |
e02c9458 | 177 | if (strncmp(argv[1], "mo", 2) == 0) { |
781e09ee GVB |
178 | struct fdt_header *newaddr; |
179 | int len; | |
180 | int err; | |
181 | ||
47e26b1b | 182 | if (argc < 4) |
4c12eeb8 | 183 | return CMD_RET_USAGE; |
781e09ee GVB |
184 | |
185 | /* | |
186 | * Set the address and length of the fdt. | |
187 | */ | |
e489b9c0 | 188 | working_fdt = (struct fdt_header *)simple_strtoul(argv[2], NULL, 16); |
d14da913 | 189 | if (!fdt_valid(&working_fdt)) |
781e09ee | 190 | return 1; |
781e09ee | 191 | |
addd8ce8 | 192 | newaddr = (struct fdt_header *)simple_strtoul(argv[3],NULL,16); |
6be07cc1 GVB |
193 | |
194 | /* | |
195 | * If the user specifies a length, use that. Otherwise use the | |
196 | * current length. | |
197 | */ | |
198 | if (argc <= 4) { | |
e489b9c0 | 199 | len = fdt_totalsize(working_fdt); |
6be07cc1 GVB |
200 | } else { |
201 | len = simple_strtoul(argv[4], NULL, 16); | |
e489b9c0 | 202 | if (len < fdt_totalsize(working_fdt)) { |
addd8ce8 GVB |
203 | printf ("New length 0x%X < existing length " |
204 | "0x%X, aborting.\n", | |
e489b9c0 | 205 | len, fdt_totalsize(working_fdt)); |
6be07cc1 GVB |
206 | return 1; |
207 | } | |
781e09ee GVB |
208 | } |
209 | ||
210 | /* | |
211 | * Copy to the new location. | |
212 | */ | |
e489b9c0 | 213 | err = fdt_open_into(working_fdt, newaddr, len); |
781e09ee | 214 | if (err != 0) { |
addd8ce8 GVB |
215 | printf ("libfdt fdt_open_into(): %s\n", |
216 | fdt_strerror(err)); | |
781e09ee GVB |
217 | return 1; |
218 | } | |
e489b9c0 | 219 | working_fdt = newaddr; |
781e09ee | 220 | |
47e26b1b | 221 | /* |
25114033 | 222 | * Make a new node |
47e26b1b | 223 | */ |
2fb698bf | 224 | } else if (strncmp(argv[1], "mk", 2) == 0) { |
25114033 GVB |
225 | char *pathp; /* path */ |
226 | char *nodep; /* new node to add */ | |
227 | int nodeoffset; /* node offset from libfdt */ | |
228 | int err; | |
229 | ||
230 | /* | |
231 | * Parameters: Node path, new node to be appended to the path. | |
232 | */ | |
47e26b1b | 233 | if (argc < 4) |
4c12eeb8 | 234 | return CMD_RET_USAGE; |
25114033 GVB |
235 | |
236 | pathp = argv[2]; | |
237 | nodep = argv[3]; | |
238 | ||
e489b9c0 | 239 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
25114033 GVB |
240 | if (nodeoffset < 0) { |
241 | /* | |
242 | * Not found or something else bad happened. | |
243 | */ | |
8d04f02f | 244 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 245 | fdt_strerror(nodeoffset)); |
25114033 GVB |
246 | return 1; |
247 | } | |
e489b9c0 | 248 | err = fdt_add_subnode(working_fdt, nodeoffset, nodep); |
25114033 | 249 | if (err < 0) { |
addd8ce8 GVB |
250 | printf ("libfdt fdt_add_subnode(): %s\n", |
251 | fdt_strerror(err)); | |
25114033 GVB |
252 | return 1; |
253 | } | |
254 | ||
47e26b1b | 255 | /* |
e489b9c0 | 256 | * Set the value of a property in the working_fdt. |
47e26b1b | 257 | */ |
25114033 | 258 | } else if (argv[1][0] == 's') { |
781e09ee | 259 | char *pathp; /* path */ |
addd8ce8 | 260 | char *prop; /* property */ |
781e09ee | 261 | int nodeoffset; /* node offset from libfdt */ |
addd8ce8 GVB |
262 | static char data[SCRATCHPAD]; /* storage for the property */ |
263 | int len; /* new length of the property */ | |
264 | int ret; /* return value */ | |
781e09ee GVB |
265 | |
266 | /* | |
ea6d8be1 | 267 | * Parameters: Node path, property, optional value. |
781e09ee | 268 | */ |
47e26b1b | 269 | if (argc < 4) |
4c12eeb8 | 270 | return CMD_RET_USAGE; |
781e09ee GVB |
271 | |
272 | pathp = argv[2]; | |
273 | prop = argv[3]; | |
ea6d8be1 GVB |
274 | if (argc == 4) { |
275 | len = 0; | |
276 | } else { | |
4abd844d | 277 | ret = fdt_parse_prop(&argv[4], argc - 4, data, &len); |
ea6d8be1 GVB |
278 | if (ret != 0) |
279 | return ret; | |
280 | } | |
781e09ee | 281 | |
e489b9c0 | 282 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
25114033 | 283 | if (nodeoffset < 0) { |
781e09ee | 284 | /* |
25114033 | 285 | * Not found or something else bad happened. |
781e09ee | 286 | */ |
8d04f02f | 287 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 288 | fdt_strerror(nodeoffset)); |
781e09ee | 289 | return 1; |
25114033 | 290 | } |
25114033 | 291 | |
e489b9c0 | 292 | ret = fdt_setprop(working_fdt, nodeoffset, prop, data, len); |
25114033 GVB |
293 | if (ret < 0) { |
294 | printf ("libfdt fdt_setprop(): %s\n", fdt_strerror(ret)); | |
295 | return 1; | |
781e09ee GVB |
296 | } |
297 | ||
bc80295b JH |
298 | /******************************************************************** |
299 | * Get the value of a property in the working_fdt. | |
300 | ********************************************************************/ | |
301 | } else if (argv[1][0] == 'g') { | |
302 | char *subcmd; /* sub-command */ | |
303 | char *pathp; /* path */ | |
304 | char *prop; /* property */ | |
305 | char *var; /* variable to store result */ | |
306 | int nodeoffset; /* node offset from libfdt */ | |
307 | const void *nodep; /* property node pointer */ | |
308 | int len = 0; /* new length of the property */ | |
309 | ||
310 | /* | |
311 | * Parameters: Node path, property, optional value. | |
312 | */ | |
313 | if (argc < 5) | |
314 | return CMD_RET_USAGE; | |
315 | ||
316 | subcmd = argv[2]; | |
317 | ||
318 | if (argc < 6 && subcmd[0] != 's') | |
319 | return CMD_RET_USAGE; | |
320 | ||
321 | var = argv[3]; | |
322 | pathp = argv[4]; | |
323 | prop = argv[5]; | |
324 | ||
325 | nodeoffset = fdt_path_offset(working_fdt, pathp); | |
326 | if (nodeoffset < 0) { | |
327 | /* | |
328 | * Not found or something else bad happened. | |
329 | */ | |
330 | printf("libfdt fdt_path_offset() returned %s\n", | |
331 | fdt_strerror(nodeoffset)); | |
332 | return 1; | |
333 | } | |
334 | ||
335 | if (subcmd[0] == 'n' || (subcmd[0] == 's' && argc == 5)) { | |
336 | int reqIndex = -1; | |
337 | int startDepth = fdt_node_depth( | |
338 | working_fdt, nodeoffset); | |
339 | int curDepth = startDepth; | |
340 | int curIndex = -1; | |
341 | int nextNodeOffset = fdt_next_node( | |
342 | working_fdt, nodeoffset, &curDepth); | |
343 | ||
344 | if (subcmd[0] == 'n') | |
345 | reqIndex = simple_strtoul(argv[5], NULL, 16); | |
346 | ||
347 | while (curDepth > startDepth) { | |
348 | if (curDepth == startDepth + 1) | |
349 | curIndex++; | |
350 | if (subcmd[0] == 'n' && curIndex == reqIndex) { | |
351 | const char *nodeName = fdt_get_name( | |
352 | working_fdt, nextNodeOffset, NULL); | |
353 | ||
354 | setenv(var, (char *)nodeName); | |
355 | return 0; | |
356 | } | |
357 | nextNodeOffset = fdt_next_node( | |
358 | working_fdt, nextNodeOffset, &curDepth); | |
359 | if (nextNodeOffset < 0) | |
360 | break; | |
361 | } | |
362 | if (subcmd[0] == 's') { | |
363 | /* get the num nodes at this level */ | |
bfc59966 | 364 | setenv_ulong(var, curIndex + 1); |
bc80295b JH |
365 | } else { |
366 | /* node index not found */ | |
367 | printf("libfdt node not found\n"); | |
368 | return 1; | |
369 | } | |
370 | } else { | |
371 | nodep = fdt_getprop( | |
372 | working_fdt, nodeoffset, prop, &len); | |
373 | if (len == 0) { | |
374 | /* no property value */ | |
375 | setenv(var, ""); | |
376 | return 0; | |
377 | } else if (len > 0) { | |
378 | if (subcmd[0] == 'v') { | |
379 | int ret; | |
380 | ||
381 | ret = fdt_value_setenv(nodep, len, var); | |
382 | if (ret != 0) | |
383 | return ret; | |
384 | } else if (subcmd[0] == 'a') { | |
385 | /* Get address */ | |
386 | char buf[11]; | |
387 | ||
085b9c3a | 388 | sprintf(buf, "0x%p", nodep); |
bc80295b JH |
389 | setenv(var, buf); |
390 | } else if (subcmd[0] == 's') { | |
391 | /* Get size */ | |
392 | char buf[11]; | |
393 | ||
394 | sprintf(buf, "0x%08X", len); | |
395 | setenv(var, buf); | |
396 | } else | |
397 | return CMD_RET_USAGE; | |
398 | return 0; | |
399 | } else { | |
400 | printf("libfdt fdt_getprop(): %s\n", | |
401 | fdt_strerror(len)); | |
402 | return 1; | |
403 | } | |
404 | } | |
405 | ||
47e26b1b | 406 | /* |
781e09ee | 407 | * Print (recursive) / List (single level) |
47e26b1b | 408 | */ |
25114033 | 409 | } else if ((argv[1][0] == 'p') || (argv[1][0] == 'l')) { |
781e09ee GVB |
410 | int depth = MAX_LEVEL; /* how deep to print */ |
411 | char *pathp; /* path */ | |
addd8ce8 GVB |
412 | char *prop; /* property */ |
413 | int ret; /* return value */ | |
f738b4a7 | 414 | static char root[2] = "/"; |
781e09ee GVB |
415 | |
416 | /* | |
417 | * list is an alias for print, but limited to 1 level | |
418 | */ | |
25114033 | 419 | if (argv[1][0] == 'l') { |
781e09ee GVB |
420 | depth = 1; |
421 | } | |
422 | ||
423 | /* | |
424 | * Get the starting path. The root node is an oddball, | |
425 | * the offset is zero and has no name. | |
426 | */ | |
f738b4a7 KG |
427 | if (argc == 2) |
428 | pathp = root; | |
429 | else | |
430 | pathp = argv[2]; | |
781e09ee GVB |
431 | if (argc > 3) |
432 | prop = argv[3]; | |
433 | else | |
434 | prop = NULL; | |
435 | ||
addd8ce8 GVB |
436 | ret = fdt_print(pathp, prop, depth); |
437 | if (ret != 0) | |
438 | return ret; | |
781e09ee | 439 | |
47e26b1b | 440 | /* |
781e09ee | 441 | * Remove a property/node |
47e26b1b | 442 | */ |
2fb698bf | 443 | } else if (strncmp(argv[1], "rm", 2) == 0) { |
781e09ee GVB |
444 | int nodeoffset; /* node offset from libfdt */ |
445 | int err; | |
446 | ||
447 | /* | |
448 | * Get the path. The root node is an oddball, the offset | |
449 | * is zero and has no name. | |
450 | */ | |
e489b9c0 | 451 | nodeoffset = fdt_path_offset (working_fdt, argv[2]); |
25114033 GVB |
452 | if (nodeoffset < 0) { |
453 | /* | |
454 | * Not found or something else bad happened. | |
455 | */ | |
8d04f02f | 456 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 457 | fdt_strerror(nodeoffset)); |
25114033 | 458 | return 1; |
781e09ee GVB |
459 | } |
460 | /* | |
461 | * Do the delete. A fourth parameter means delete a property, | |
462 | * otherwise delete the node. | |
463 | */ | |
464 | if (argc > 3) { | |
e489b9c0 | 465 | err = fdt_delprop(working_fdt, nodeoffset, argv[3]); |
781e09ee | 466 | if (err < 0) { |
addd8ce8 GVB |
467 | printf("libfdt fdt_delprop(): %s\n", |
468 | fdt_strerror(err)); | |
781e09ee GVB |
469 | return err; |
470 | } | |
471 | } else { | |
e489b9c0 | 472 | err = fdt_del_node(working_fdt, nodeoffset); |
781e09ee | 473 | if (err < 0) { |
addd8ce8 GVB |
474 | printf("libfdt fdt_del_node(): %s\n", |
475 | fdt_strerror(err)); | |
781e09ee GVB |
476 | return err; |
477 | } | |
478 | } | |
804887e6 | 479 | |
47e26b1b | 480 | /* |
804887e6 | 481 | * Display header info |
47e26b1b | 482 | */ |
804887e6 | 483 | } else if (argv[1][0] == 'h') { |
e489b9c0 KP |
484 | u32 version = fdt_version(working_fdt); |
485 | printf("magic:\t\t\t0x%x\n", fdt_magic(working_fdt)); | |
486 | printf("totalsize:\t\t0x%x (%d)\n", fdt_totalsize(working_fdt), | |
487 | fdt_totalsize(working_fdt)); | |
488 | printf("off_dt_struct:\t\t0x%x\n", | |
489 | fdt_off_dt_struct(working_fdt)); | |
490 | printf("off_dt_strings:\t\t0x%x\n", | |
491 | fdt_off_dt_strings(working_fdt)); | |
492 | printf("off_mem_rsvmap:\t\t0x%x\n", | |
493 | fdt_off_mem_rsvmap(working_fdt)); | |
804887e6 | 494 | printf("version:\t\t%d\n", version); |
e489b9c0 KP |
495 | printf("last_comp_version:\t%d\n", |
496 | fdt_last_comp_version(working_fdt)); | |
804887e6 KG |
497 | if (version >= 2) |
498 | printf("boot_cpuid_phys:\t0x%x\n", | |
e489b9c0 | 499 | fdt_boot_cpuid_phys(working_fdt)); |
804887e6 KG |
500 | if (version >= 3) |
501 | printf("size_dt_strings:\t0x%x\n", | |
e489b9c0 | 502 | fdt_size_dt_strings(working_fdt)); |
804887e6 KG |
503 | if (version >= 17) |
504 | printf("size_dt_struct:\t\t0x%x\n", | |
e489b9c0 KP |
505 | fdt_size_dt_struct(working_fdt)); |
506 | printf("number mem_rsv:\t\t0x%x\n", | |
507 | fdt_num_mem_rsv(working_fdt)); | |
804887e6 KG |
508 | printf("\n"); |
509 | ||
47e26b1b | 510 | /* |
804887e6 | 511 | * Set boot cpu id |
47e26b1b | 512 | */ |
2fb698bf | 513 | } else if (strncmp(argv[1], "boo", 3) == 0) { |
804887e6 | 514 | unsigned long tmp = simple_strtoul(argv[2], NULL, 16); |
e489b9c0 | 515 | fdt_set_boot_cpuid_phys(working_fdt, tmp); |
804887e6 | 516 | |
47e26b1b | 517 | /* |
804887e6 | 518 | * memory command |
47e26b1b | 519 | */ |
2fb698bf | 520 | } else if (strncmp(argv[1], "me", 2) == 0) { |
804887e6 KG |
521 | uint64_t addr, size; |
522 | int err; | |
4b142feb HS |
523 | addr = simple_strtoull(argv[2], NULL, 16); |
524 | size = simple_strtoull(argv[3], NULL, 16); | |
e489b9c0 | 525 | err = fdt_fixup_memory(working_fdt, addr, size); |
804887e6 KG |
526 | if (err < 0) |
527 | return err; | |
528 | ||
47e26b1b | 529 | /* |
804887e6 | 530 | * mem reserve commands |
47e26b1b | 531 | */ |
2fb698bf | 532 | } else if (strncmp(argv[1], "rs", 2) == 0) { |
804887e6 KG |
533 | if (argv[2][0] == 'p') { |
534 | uint64_t addr, size; | |
e489b9c0 | 535 | int total = fdt_num_mem_rsv(working_fdt); |
804887e6 KG |
536 | int j, err; |
537 | printf("index\t\t start\t\t size\n"); | |
538 | printf("-------------------------------" | |
539 | "-----------------\n"); | |
540 | for (j = 0; j < total; j++) { | |
e489b9c0 | 541 | err = fdt_get_mem_rsv(working_fdt, j, &addr, &size); |
804887e6 KG |
542 | if (err < 0) { |
543 | printf("libfdt fdt_get_mem_rsv(): %s\n", | |
544 | fdt_strerror(err)); | |
545 | return err; | |
546 | } | |
547 | printf(" %x\t%08x%08x\t%08x%08x\n", j, | |
548 | (u32)(addr >> 32), | |
549 | (u32)(addr & 0xffffffff), | |
550 | (u32)(size >> 32), | |
551 | (u32)(size & 0xffffffff)); | |
552 | } | |
553 | } else if (argv[2][0] == 'a') { | |
554 | uint64_t addr, size; | |
555 | int err; | |
804887e6 KG |
556 | addr = simple_strtoull(argv[3], NULL, 16); |
557 | size = simple_strtoull(argv[4], NULL, 16); | |
e489b9c0 | 558 | err = fdt_add_mem_rsv(working_fdt, addr, size); |
804887e6 KG |
559 | |
560 | if (err < 0) { | |
561 | printf("libfdt fdt_add_mem_rsv(): %s\n", | |
562 | fdt_strerror(err)); | |
563 | return err; | |
564 | } | |
565 | } else if (argv[2][0] == 'd') { | |
566 | unsigned long idx = simple_strtoul(argv[3], NULL, 16); | |
e489b9c0 | 567 | int err = fdt_del_mem_rsv(working_fdt, idx); |
804887e6 KG |
568 | |
569 | if (err < 0) { | |
570 | printf("libfdt fdt_del_mem_rsv(): %s\n", | |
571 | fdt_strerror(err)); | |
572 | return err; | |
573 | } | |
574 | } else { | |
575 | /* Unrecognized command */ | |
4c12eeb8 | 576 | return CMD_RET_USAGE; |
804887e6 | 577 | } |
99dffca3 | 578 | } |
fd61e55d | 579 | #ifdef CONFIG_OF_BOARD_SETUP |
99dffca3 | 580 | /* Call the board-specific fixup routine */ |
2fb698bf | 581 | else if (strncmp(argv[1], "boa", 3) == 0) |
e489b9c0 | 582 | ft_board_setup(working_fdt, gd->bd); |
fd61e55d | 583 | #endif |
99dffca3 | 584 | /* Create a chosen node */ |
f953d99f KG |
585 | else if (argv[1][0] == 'c') { |
586 | unsigned long initrd_start = 0, initrd_end = 0; | |
587 | ||
47e26b1b | 588 | if ((argc != 2) && (argc != 4)) |
4c12eeb8 | 589 | return CMD_RET_USAGE; |
f953d99f KG |
590 | |
591 | if (argc == 4) { | |
592 | initrd_start = simple_strtoul(argv[2], NULL, 16); | |
593 | initrd_end = simple_strtoul(argv[3], NULL, 16); | |
594 | } | |
595 | ||
56844a22 HS |
596 | fdt_chosen(working_fdt, 1); |
597 | fdt_initrd(working_fdt, initrd_start, initrd_end, 1); | |
40afac22 KG |
598 | } |
599 | /* resize the fdt */ | |
600 | else if (strncmp(argv[1], "re", 2) == 0) { | |
601 | fdt_resize(working_fdt); | |
602 | } | |
603 | else { | |
99dffca3 | 604 | /* Unrecognized command */ |
4c12eeb8 | 605 | return CMD_RET_USAGE; |
781e09ee GVB |
606 | } |
607 | ||
608 | return 0; | |
609 | } | |
610 | ||
addd8ce8 | 611 | /****************************************************************************/ |
781e09ee | 612 | |
d14da913 SG |
613 | /** |
614 | * fdt_valid() - Check if an FDT is valid. If not, change it to NULL | |
615 | * | |
616 | * @blobp: Pointer to FDT pointer | |
617 | * @return 1 if OK, 0 if bad (in which case *blobp is set to NULL) | |
618 | */ | |
619 | static int fdt_valid(struct fdt_header **blobp) | |
781e09ee | 620 | { |
d14da913 SG |
621 | const void *blob = *blobp; |
622 | int err; | |
64dbbd40 | 623 | |
d14da913 | 624 | if (blob == NULL) { |
64dbbd40 | 625 | printf ("The address of the fdt is invalid (NULL).\n"); |
781e09ee GVB |
626 | return 0; |
627 | } | |
64dbbd40 | 628 | |
d14da913 | 629 | err = fdt_check_header(blob); |
64dbbd40 GVB |
630 | if (err == 0) |
631 | return 1; /* valid */ | |
632 | ||
633 | if (err < 0) { | |
25114033 | 634 | printf("libfdt fdt_check_header(): %s", fdt_strerror(err)); |
64dbbd40 GVB |
635 | /* |
636 | * Be more informative on bad version. | |
637 | */ | |
638 | if (err == -FDT_ERR_BADVERSION) { | |
d14da913 | 639 | if (fdt_version(blob) < |
e489b9c0 | 640 | FDT_FIRST_SUPPORTED_VERSION) { |
dc4b0b38 | 641 | printf (" - too old, fdt %d < %d", |
d14da913 | 642 | fdt_version(blob), |
addd8ce8 | 643 | FDT_FIRST_SUPPORTED_VERSION); |
64dbbd40 | 644 | } |
d14da913 | 645 | if (fdt_last_comp_version(blob) > |
e489b9c0 | 646 | FDT_LAST_SUPPORTED_VERSION) { |
dc4b0b38 | 647 | printf (" - too new, fdt %d > %d", |
d14da913 | 648 | fdt_version(blob), |
addd8ce8 | 649 | FDT_LAST_SUPPORTED_VERSION); |
64dbbd40 | 650 | } |
64dbbd40 GVB |
651 | } |
652 | printf("\n"); | |
d14da913 | 653 | *blobp = NULL; |
781e09ee GVB |
654 | return 0; |
655 | } | |
656 | return 1; | |
657 | } | |
658 | ||
addd8ce8 | 659 | /****************************************************************************/ |
781e09ee GVB |
660 | |
661 | /* | |
addd8ce8 | 662 | * Parse the user's input, partially heuristic. Valid formats: |
4abd844d | 663 | * <0x00112233 4 05> - an array of cells. Numbers follow standard |
53677ef1 | 664 | * C conventions. |
addd8ce8 GVB |
665 | * [00 11 22 .. nn] - byte stream |
666 | * "string" - If the the value doesn't start with "<" or "[", it is | |
667 | * treated as a string. Note that the quotes are | |
668 | * stripped by the parser before we get the string. | |
4abd844d | 669 | * newval: An array of strings containing the new property as specified |
53677ef1 | 670 | * on the command line |
4abd844d AF |
671 | * count: The number of strings in the array |
672 | * data: A bytestream to be placed in the property | |
673 | * len: The length of the resulting bytestream | |
addd8ce8 | 674 | */ |
54841ab5 | 675 | static int fdt_parse_prop(char * const *newval, int count, char *data, int *len) |
addd8ce8 GVB |
676 | { |
677 | char *cp; /* temporary char pointer */ | |
4abd844d | 678 | char *newp; /* temporary newval char pointer */ |
addd8ce8 | 679 | unsigned long tmp; /* holds converted values */ |
4abd844d | 680 | int stridx = 0; |
addd8ce8 | 681 | |
4abd844d AF |
682 | *len = 0; |
683 | newp = newval[0]; | |
684 | ||
685 | /* An array of cells */ | |
686 | if (*newp == '<') { | |
687 | newp++; | |
688 | while ((*newp != '>') && (stridx < count)) { | |
689 | /* | |
690 | * Keep searching until we find that last ">" | |
691 | * That way users don't have to escape the spaces | |
692 | */ | |
693 | if (*newp == '\0') { | |
694 | newp = newval[++stridx]; | |
695 | continue; | |
696 | } | |
697 | ||
698 | cp = newp; | |
699 | tmp = simple_strtoul(cp, &newp, 0); | |
088f1b19 | 700 | *(__be32 *)data = __cpu_to_be32(tmp); |
4abd844d AF |
701 | data += 4; |
702 | *len += 4; | |
703 | ||
704 | /* If the ptr didn't advance, something went wrong */ | |
705 | if ((newp - cp) <= 0) { | |
addd8ce8 GVB |
706 | printf("Sorry, I could not convert \"%s\"\n", |
707 | cp); | |
708 | return 1; | |
709 | } | |
4abd844d AF |
710 | |
711 | while (*newp == ' ') | |
712 | newp++; | |
addd8ce8 | 713 | } |
4abd844d AF |
714 | |
715 | if (*newp != '>') { | |
716 | printf("Unexpected character '%c'\n", *newp); | |
addd8ce8 GVB |
717 | return 1; |
718 | } | |
4abd844d | 719 | } else if (*newp == '[') { |
addd8ce8 GVB |
720 | /* |
721 | * Byte stream. Convert the values. | |
722 | */ | |
4abd844d | 723 | newp++; |
6e748ea0 | 724 | while ((stridx < count) && (*newp != ']')) { |
4abd844d AF |
725 | while (*newp == ' ') |
726 | newp++; | |
6e748ea0 | 727 | if (*newp == '\0') { |
4abd844d | 728 | newp = newval[++stridx]; |
6e748ea0 KM |
729 | continue; |
730 | } | |
731 | if (!isxdigit(*newp)) | |
732 | break; | |
733 | tmp = simple_strtoul(newp, &newp, 16); | |
734 | *data++ = tmp & 0xFF; | |
735 | *len = *len + 1; | |
addd8ce8 | 736 | } |
4abd844d | 737 | if (*newp != ']') { |
dc4b0b38 | 738 | printf("Unexpected character '%c'\n", *newp); |
addd8ce8 GVB |
739 | return 1; |
740 | } | |
741 | } else { | |
742 | /* | |
6e748ea0 KM |
743 | * Assume it is one or more strings. Copy it into our |
744 | * data area for convenience (including the | |
745 | * terminating '\0's). | |
addd8ce8 | 746 | */ |
4abd844d | 747 | while (stridx < count) { |
6e748ea0 | 748 | size_t length = strlen(newp) + 1; |
4abd844d | 749 | strcpy(data, newp); |
6e748ea0 KM |
750 | data += length; |
751 | *len += length; | |
4abd844d AF |
752 | newp = newval[++stridx]; |
753 | } | |
addd8ce8 GVB |
754 | } |
755 | return 0; | |
756 | } | |
757 | ||
758 | /****************************************************************************/ | |
759 | ||
760 | /* | |
761 | * Heuristic to guess if this is a string or concatenated strings. | |
781e09ee GVB |
762 | */ |
763 | ||
764 | static int is_printable_string(const void *data, int len) | |
765 | { | |
766 | const char *s = data; | |
767 | ||
768 | /* zero length is not */ | |
769 | if (len == 0) | |
770 | return 0; | |
771 | ||
8805beec JH |
772 | /* must terminate with zero or '\n' */ |
773 | if (s[len - 1] != '\0' && s[len - 1] != '\n') | |
781e09ee GVB |
774 | return 0; |
775 | ||
776 | /* printable or a null byte (concatenated strings) */ | |
8805beec | 777 | while (((*s == '\0') || isprint(*s) || isspace(*s)) && (len > 0)) { |
781e09ee GVB |
778 | /* |
779 | * If we see a null, there are three possibilities: | |
780 | * 1) If len == 1, it is the end of the string, printable | |
781 | * 2) Next character also a null, not printable. | |
782 | * 3) Next character not a null, continue to check. | |
783 | */ | |
784 | if (s[0] == '\0') { | |
785 | if (len == 1) | |
786 | return 1; | |
787 | if (s[1] == '\0') | |
788 | return 0; | |
789 | } | |
790 | s++; | |
791 | len--; | |
792 | } | |
793 | ||
794 | /* Not the null termination, or not done yet: not printable */ | |
795 | if (*s != '\0' || (len != 0)) | |
796 | return 0; | |
797 | ||
798 | return 1; | |
799 | } | |
800 | ||
addd8ce8 GVB |
801 | |
802 | /* | |
803 | * Print the property in the best format, a heuristic guess. Print as | |
804 | * a string, concatenated strings, a byte, word, double word, or (if all | |
805 | * else fails) it is printed as a stream of bytes. | |
806 | */ | |
781e09ee GVB |
807 | static void print_data(const void *data, int len) |
808 | { | |
809 | int j; | |
781e09ee GVB |
810 | |
811 | /* no data, don't print */ | |
812 | if (len == 0) | |
813 | return; | |
814 | ||
815 | /* | |
816 | * It is a string, but it may have multiple strings (embedded '\0's). | |
817 | */ | |
818 | if (is_printable_string(data, len)) { | |
819 | puts("\""); | |
820 | j = 0; | |
821 | while (j < len) { | |
822 | if (j > 0) | |
823 | puts("\", \""); | |
824 | puts(data); | |
825 | j += strlen(data) + 1; | |
826 | data += strlen(data) + 1; | |
827 | } | |
828 | puts("\""); | |
829 | return; | |
830 | } | |
831 | ||
4abd844d | 832 | if ((len %4) == 0) { |
f0a29d43 | 833 | if (len > CONFIG_CMD_FDT_MAX_DUMP) |
085b9c3a | 834 | printf("* 0x%p [0x%08x]", data, len); |
f0a29d43 | 835 | else { |
088f1b19 | 836 | const __be32 *p; |
f0a29d43 JH |
837 | |
838 | printf("<"); | |
839 | for (j = 0, p = data; j < len/4; j++) | |
840 | printf("0x%08x%s", fdt32_to_cpu(p[j]), | |
841 | j < (len/4 - 1) ? " " : ""); | |
842 | printf(">"); | |
843 | } | |
4abd844d | 844 | } else { /* anything else... hexdump */ |
f0a29d43 | 845 | if (len > CONFIG_CMD_FDT_MAX_DUMP) |
085b9c3a | 846 | printf("* 0x%p [0x%08x]", data, len); |
f0a29d43 JH |
847 | else { |
848 | const u8 *s; | |
849 | ||
850 | printf("["); | |
851 | for (j = 0, s = data; j < len; j++) | |
852 | printf("%02x%s", s[j], j < len - 1 ? " " : ""); | |
853 | printf("]"); | |
854 | } | |
781e09ee GVB |
855 | } |
856 | } | |
857 | ||
addd8ce8 GVB |
858 | /****************************************************************************/ |
859 | ||
860 | /* | |
e489b9c0 | 861 | * Recursively print (a portion of) the working_fdt. The depth parameter |
addd8ce8 GVB |
862 | * determines how deeply nested the fdt is printed. |
863 | */ | |
dbaf07ce | 864 | static int fdt_print(const char *pathp, char *prop, int depth) |
addd8ce8 | 865 | { |
addd8ce8 GVB |
866 | static char tabs[MAX_LEVEL+1] = |
867 | "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t" | |
868 | "\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"; | |
dbaf07ce | 869 | const void *nodep; /* property node pointer */ |
addd8ce8 GVB |
870 | int nodeoffset; /* node offset from libfdt */ |
871 | int nextoffset; /* next node offset from libfdt */ | |
872 | uint32_t tag; /* tag */ | |
873 | int len; /* length of the property */ | |
874 | int level = 0; /* keep track of nesting level */ | |
91623528 | 875 | const struct fdt_property *fdt_prop; |
addd8ce8 | 876 | |
e489b9c0 | 877 | nodeoffset = fdt_path_offset (working_fdt, pathp); |
addd8ce8 GVB |
878 | if (nodeoffset < 0) { |
879 | /* | |
880 | * Not found or something else bad happened. | |
881 | */ | |
8d04f02f | 882 | printf ("libfdt fdt_path_offset() returned %s\n", |
06e19a07 | 883 | fdt_strerror(nodeoffset)); |
addd8ce8 GVB |
884 | return 1; |
885 | } | |
886 | /* | |
887 | * The user passed in a property as well as node path. | |
888 | * Print only the given property and then return. | |
889 | */ | |
890 | if (prop) { | |
e489b9c0 | 891 | nodep = fdt_getprop (working_fdt, nodeoffset, prop, &len); |
addd8ce8 GVB |
892 | if (len == 0) { |
893 | /* no property value */ | |
894 | printf("%s %s\n", pathp, prop); | |
895 | return 0; | |
896 | } else if (len > 0) { | |
28f384b1 | 897 | printf("%s = ", prop); |
addd8ce8 GVB |
898 | print_data (nodep, len); |
899 | printf("\n"); | |
900 | return 0; | |
901 | } else { | |
902 | printf ("libfdt fdt_getprop(): %s\n", | |
903 | fdt_strerror(len)); | |
904 | return 1; | |
905 | } | |
906 | } | |
907 | ||
908 | /* | |
909 | * The user passed in a node path and no property, | |
910 | * print the node and all subnodes. | |
911 | */ | |
addd8ce8 | 912 | while(level >= 0) { |
e489b9c0 | 913 | tag = fdt_next_tag(working_fdt, nodeoffset, &nextoffset); |
addd8ce8 GVB |
914 | switch(tag) { |
915 | case FDT_BEGIN_NODE: | |
e489b9c0 | 916 | pathp = fdt_get_name(working_fdt, nodeoffset, NULL); |
91623528 GVB |
917 | if (level <= depth) { |
918 | if (pathp == NULL) | |
919 | pathp = "/* NULL pointer error */"; | |
920 | if (*pathp == '\0') | |
921 | pathp = "/"; /* root is nameless */ | |
addd8ce8 GVB |
922 | printf("%s%s {\n", |
923 | &tabs[MAX_LEVEL - level], pathp); | |
91623528 | 924 | } |
addd8ce8 | 925 | level++; |
addd8ce8 | 926 | if (level >= MAX_LEVEL) { |
91623528 | 927 | printf("Nested too deep, aborting.\n"); |
addd8ce8 GVB |
928 | return 1; |
929 | } | |
930 | break; | |
931 | case FDT_END_NODE: | |
932 | level--; | |
91623528 | 933 | if (level <= depth) |
addd8ce8 GVB |
934 | printf("%s};\n", &tabs[MAX_LEVEL - level]); |
935 | if (level == 0) { | |
936 | level = -1; /* exit the loop */ | |
937 | } | |
938 | break; | |
939 | case FDT_PROP: | |
e489b9c0 | 940 | fdt_prop = fdt_offset_ptr(working_fdt, nodeoffset, |
91623528 | 941 | sizeof(*fdt_prop)); |
e489b9c0 | 942 | pathp = fdt_string(working_fdt, |
91623528 GVB |
943 | fdt32_to_cpu(fdt_prop->nameoff)); |
944 | len = fdt32_to_cpu(fdt_prop->len); | |
945 | nodep = fdt_prop->data; | |
addd8ce8 GVB |
946 | if (len < 0) { |
947 | printf ("libfdt fdt_getprop(): %s\n", | |
948 | fdt_strerror(len)); | |
949 | return 1; | |
950 | } else if (len == 0) { | |
951 | /* the property has no value */ | |
91623528 | 952 | if (level <= depth) |
addd8ce8 GVB |
953 | printf("%s%s;\n", |
954 | &tabs[MAX_LEVEL - level], | |
955 | pathp); | |
956 | } else { | |
91623528 | 957 | if (level <= depth) { |
28f384b1 | 958 | printf("%s%s = ", |
addd8ce8 GVB |
959 | &tabs[MAX_LEVEL - level], |
960 | pathp); | |
961 | print_data (nodep, len); | |
962 | printf(";\n"); | |
963 | } | |
964 | } | |
965 | break; | |
966 | case FDT_NOP: | |
dc4b0b38 | 967 | printf("%s/* NOP */\n", &tabs[MAX_LEVEL - level]); |
addd8ce8 GVB |
968 | break; |
969 | case FDT_END: | |
970 | return 1; | |
971 | default: | |
91623528 | 972 | if (level <= depth) |
addd8ce8 GVB |
973 | printf("Unknown tag 0x%08X\n", tag); |
974 | return 1; | |
975 | } | |
976 | nodeoffset = nextoffset; | |
977 | } | |
978 | return 0; | |
979 | } | |
980 | ||
781e09ee | 981 | /********************************************************************/ |
088f1b19 KP |
982 | #ifdef CONFIG_SYS_LONGHELP |
983 | static char fdt_help_text[] = | |
4b578655 | 984 | "addr [-c] <addr> [<length>] - Set the [control] fdt location to <addr>\n" |
fd61e55d GVB |
985 | #ifdef CONFIG_OF_BOARD_SETUP |
986 | "fdt boardsetup - Do board-specific set up\n" | |
987 | #endif | |
238cb7a4 | 988 | "fdt move <fdt> <newaddr> <length> - Copy the fdt to <addr> and make it active\n" |
40afac22 | 989 | "fdt resize - Resize fdt to size + padding to 4k addr\n" |
781e09ee GVB |
990 | "fdt print <path> [<prop>] - Recursive print starting at <path>\n" |
991 | "fdt list <path> [<prop>] - Print one level starting at <path>\n" | |
bc80295b JH |
992 | "fdt get value <var> <path> <prop> - Get <property> and store in <var>\n" |
993 | "fdt get name <var> <path> <index> - Get name of node <index> and store in <var>\n" | |
994 | "fdt get addr <var> <path> <prop> - Get start address of <property> and store in <var>\n" | |
995 | "fdt get size <var> <path> [<prop>] - Get size of [<property>] or num nodes and store in <var>\n" | |
781e09ee GVB |
996 | "fdt set <path> <prop> [<val>] - Set <property> [to <val>]\n" |
997 | "fdt mknode <path> <node> - Create a new node after <path>\n" | |
998 | "fdt rm <path> [<prop>] - Delete the node or <property>\n" | |
804887e6 KG |
999 | "fdt header - Display header info\n" |
1000 | "fdt bootcpu <id> - Set boot cpuid\n" | |
1001 | "fdt memory <addr> <size> - Add/Update memory node\n" | |
1002 | "fdt rsvmem print - Show current mem reserves\n" | |
1003 | "fdt rsvmem add <addr> <size> - Add a mem reserve\n" | |
1004 | "fdt rsvmem delete <index> - Delete a mem reserves\n" | |
f953d99f KG |
1005 | "fdt chosen [<start> <end>] - Add/update the /chosen branch in the tree\n" |
1006 | " <start>/<end> - initrd start/end addr\n" | |
109c30fb | 1007 | "NOTE: Dereference aliases by omiting the leading '/', " |
088f1b19 KP |
1008 | "e.g. fdt print ethernet0."; |
1009 | #endif | |
1010 | ||
1011 | U_BOOT_CMD( | |
1012 | fdt, 255, 0, do_fdt, | |
1013 | "flattened device tree utility commands", fdt_help_text | |
781e09ee | 1014 | ); |