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