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[POWERPC] Merge dtc upstream source
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / powerpc / boot / dtc-src / checks.c
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a4da2e3e
DG		 1/*
2 * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation. 2007.
3 *
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation; either version 2 of the
8 * License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20
21#include "dtc.h"
22
23#ifdef TRACE_CHECKS
24#define TRACE(c, ...) \
25 do { \
26 fprintf(stderr, "=== %s: ", (c)->name); \
27 fprintf(stderr, __VA_ARGS__); \
28 fprintf(stderr, "\n"); \
29 } while (0)
30#else
31#define TRACE(c, fmt, ...) do { } while (0)
32#endif
33
34enum checklevel {
35 IGNORE = 0,
36 WARN = 1,
37 ERROR = 2,
38};
39
40enum checkstatus {
41 UNCHECKED = 0,
42 PREREQ,
43 PASSED,
44 FAILED,
45};
46
47struct check;
48
49typedef void (*tree_check_fn)(struct check *c, struct node *dt);
50typedef void (*node_check_fn)(struct check *c, struct node *dt, struct node *node);
51typedef void (*prop_check_fn)(struct check *c, struct node *dt,
52 struct node *node, struct property *prop);
53
54struct check {
55 const char *name;
56 tree_check_fn tree_fn;
57 node_check_fn node_fn;
58 prop_check_fn prop_fn;
59 void *data;
60 enum checklevel level;
61 enum checkstatus status;
62 int inprogress;
63 int num_prereqs;
64 struct check **prereq;
65};
66
67#define CHECK(nm, tfn, nfn, pfn, d, lvl, ...) \
68 static struct check *nm##_prereqs[] = { __VA_ARGS__ }; \
69 static struct check nm = { \
70 .name = #nm, \
71 .tree_fn = (tfn), \
72 .node_fn = (nfn), \
73 .prop_fn = (pfn), \
74 .data = (d), \
75 .level = (lvl), \
76 .status = UNCHECKED, \
77 .num_prereqs = ARRAY_SIZE(nm##_prereqs), \
78 .prereq = nm##_prereqs, \
79 };
80
81#define TREE_CHECK(nm, d, lvl, ...) \
82 CHECK(nm, check_##nm, NULL, NULL, d, lvl, __VA_ARGS__)
83#define NODE_CHECK(nm, d, lvl, ...) \
84 CHECK(nm, NULL, check_##nm, NULL, d, lvl, __VA_ARGS__)
85#define PROP_CHECK(nm, d, lvl, ...) \
86 CHECK(nm, NULL, NULL, check_##nm, d, lvl, __VA_ARGS__)
87#define BATCH_CHECK(nm, lvl, ...) \
88 CHECK(nm, NULL, NULL, NULL, NULL, lvl, __VA_ARGS__)
89
90#ifdef __GNUC__
91static inline void check_msg(struct check *c, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
92#endif
93static inline void check_msg(struct check *c, const char *fmt, ...)
94{
95 va_list ap;
96 va_start(ap, fmt);
97
98 if ((c->level < WARN) || (c->level <= quiet))
99 return; /* Suppress message */
100
101 fprintf(stderr, "%s (%s): ",
102 (c->level == ERROR) ? "ERROR" : "Warning", c->name);
103 vfprintf(stderr, fmt, ap);
104 fprintf(stderr, "\n");
105}
106
107#define FAIL(c, ...) \
108 do { \
109 TRACE((c), "\t\tFAILED at %s:%d", __FILE__, __LINE__); \
110 (c)->status = FAILED; \
111 check_msg((c), __VA_ARGS__); \
112 } while (0)
113
114static void check_nodes_props(struct check *c, struct node *dt, struct node *node)
115{
116 struct node *child;
117 struct property *prop;
118
119 TRACE(c, "%s", node->fullpath);
120 if (c->node_fn)
121 c->node_fn(c, dt, node);
122
123 if (c->prop_fn)
124 for_each_property(node, prop) {
125 TRACE(c, "%s\t'%s'", node->fullpath, prop->name);
126 c->prop_fn(c, dt, node, prop);
127 }
128
129 for_each_child(node, child)
130 check_nodes_props(c, dt, child);
131}
132
133static int run_check(struct check *c, struct node *dt)
134{
135 int error = 0;
136 int i;
137
138 assert(!c->inprogress);
139
140 if (c->status != UNCHECKED)
141 goto out;
142
143 c->inprogress = 1;
144
145 for (i = 0; i < c->num_prereqs; i++) {
146 struct check *prq = c->prereq[i];
147 error |= run_check(prq, dt);
148 if (prq->status != PASSED) {
149 c->status = PREREQ;
150 check_msg(c, "Failed prerequisite '%s'",
151 c->prereq[i]->name);
152 }
153 }
154
155 if (c->status != UNCHECKED)
156 goto out;
157
158 if (c->node_fn || c->prop_fn)
159 check_nodes_props(c, dt, dt);
160
161 if (c->tree_fn)
162 c->tree_fn(c, dt);
163 if (c->status == UNCHECKED)
164 c->status = PASSED;
165
166 TRACE(c, "\tCompleted, status %d", c->status);
167
168out:
169 c->inprogress = 0;
170 if ((c->status != PASSED) && (c->level == ERROR))
171 error = 1;
172 return error;
173}
174
175/*
176 * Utility check functions
177 */
178
179static void check_is_string(struct check *c, struct node *root,
180 struct node *node)
181{
182 struct property *prop;
183 char *propname = c->data;
184
185 prop = get_property(node, propname);
186 if (!prop)
187 return; /* Not present, assumed ok */
188
189 if (!data_is_one_string(prop->val))
190 FAIL(c, "\"%s\" property in %s is not a string",
191 propname, node->fullpath);
192}
193#define CHECK_IS_STRING(nm, propname, lvl) \
194 CHECK(nm, NULL, check_is_string, NULL, (propname), (lvl))
195
196static void check_is_cell(struct check *c, struct node *root,
197 struct node *node)
198{
199 struct property *prop;
200 char *propname = c->data;
201
202 prop = get_property(node, propname);
203 if (!prop)
204 return; /* Not present, assumed ok */
205
206 if (prop->val.len != sizeof(cell_t))
207 FAIL(c, "\"%s\" property in %s is not a single cell",
208 propname, node->fullpath);
209}
210#define CHECK_IS_CELL(nm, propname, lvl) \
211 CHECK(nm, NULL, check_is_cell, NULL, (propname), (lvl))
212
213/*
214 * Structural check functions
215 */
216
217static void check_duplicate_node_names(struct check *c, struct node *dt,
218 struct node *node)
219{
220 struct node *child, *child2;
221
222 for_each_child(node, child)
223 for (child2 = child->next_sibling;
224 child2;
225 child2 = child2->next_sibling)
226 if (streq(child->name, child2->name))
227 FAIL(c, "Duplicate node name %s",
228 child->fullpath);
229}
230NODE_CHECK(duplicate_node_names, NULL, ERROR);
231
232static void check_duplicate_property_names(struct check *c, struct node *dt,
233 struct node *node)
234{
235 struct property *prop, *prop2;
236
237 for_each_property(node, prop)
238 for (prop2 = prop->next; prop2; prop2 = prop2->next)
239 if (streq(prop->name, prop2->name))
240 FAIL(c, "Duplicate property name %s in %s",
241 prop->name, node->fullpath);
242}
243NODE_CHECK(duplicate_property_names, NULL, ERROR);
244
245static void check_explicit_phandles(struct check *c, struct node *root,
246 struct node *node)
247{
248 struct property *prop;
249 struct node *other;
250 cell_t phandle;
251
252 prop = get_property(node, "linux,phandle");
253 if (! prop)
254 return; /* No phandle, that's fine */
255
256 if (prop->val.len != sizeof(cell_t)) {
257 FAIL(c, "%s has bad length (%d) linux,phandle property",
258 node->fullpath, prop->val.len);
259 return;
260 }
261
262 phandle = propval_cell(prop);
263 if ((phandle == 0) || (phandle == -1)) {
264 FAIL(c, "%s has invalid linux,phandle value 0x%x",
265 node->fullpath, phandle);
266 return;
267 }
268
269 other = get_node_by_phandle(root, phandle);
270 if (other) {
271 FAIL(c, "%s has duplicated phandle 0x%x (seen before at %s)",
272 node->fullpath, phandle, other->fullpath);
273 return;
274 }
275
276 node->phandle = phandle;
277}
278NODE_CHECK(explicit_phandles, NULL, ERROR);
279
280static void check_name_properties(struct check *c, struct node *root,
281 struct node *node)
282{
283 struct property *prop;
284
285 prop = get_property(node, "name");
286 if (!prop)
287 return; /* No name property, that's fine */
288
289 if ((prop->val.len != node->basenamelen+1)
290 || (memcmp(prop->val.val, node->name, node->basenamelen) != 0))
291 FAIL(c, "\"name\" property in %s is incorrect (\"%s\" instead"
292 " of base node name)", node->fullpath, prop->val.val);
293}
294CHECK_IS_STRING(name_is_string, "name", ERROR);
295NODE_CHECK(name_properties, NULL, ERROR, &name_is_string);
296
297/*
298 * Reference fixup functions
299 */
300
301static void fixup_phandle_references(struct check *c, struct node *dt,
302 struct node *node, struct property *prop)
303{
304 struct marker *m = prop->val.markers;
305 struct node *refnode;
306 cell_t phandle;
307
308 for_each_marker_of_type(m, REF_PHANDLE) {
309 assert(m->offset + sizeof(cell_t) <= prop->val.len);
310
311 refnode = get_node_by_ref(dt, m->ref);
312 if (! refnode) {
313 FAIL(c, "Reference to non-existent node or label \"%s\"\n",
314 m->ref);
315 continue;
316 }
317
318 phandle = get_node_phandle(dt, refnode);
319 *((cell_t *)(prop->val.val + m->offset)) = cpu_to_be32(phandle);
320 }
321}
322CHECK(phandle_references, NULL, NULL, fixup_phandle_references, NULL, ERROR,
323 &duplicate_node_names, &explicit_phandles);
324
325static void fixup_path_references(struct check *c, struct node *dt,
326 struct node *node, struct property *prop)
327{
328 struct marker *m = prop->val.markers;
329 struct node *refnode;
330 char *path;
331
332 for_each_marker_of_type(m, REF_PATH) {
333 assert(m->offset <= prop->val.len);
334
335 refnode = get_node_by_ref(dt, m->ref);
336 if (!refnode) {
337 FAIL(c, "Reference to non-existent node or label \"%s\"\n",
338 m->ref);
339 continue;
340 }
341
342 path = refnode->fullpath;
343 prop->val = data_insert_at_marker(prop->val, m, path,
344 strlen(path) + 1);
345 }
346}
347CHECK(path_references, NULL, NULL, fixup_path_references, NULL, ERROR,
348 &duplicate_node_names);
349
350/*
351 * Semantic checks
352 */
353CHECK_IS_CELL(address_cells_is_cell, "#address-cells", WARN);
354CHECK_IS_CELL(size_cells_is_cell, "#size-cells", WARN);
355CHECK_IS_CELL(interrupt_cells_is_cell, "#interrupt-cells", WARN);
356
357CHECK_IS_STRING(device_type_is_string, "device_type", WARN);
358CHECK_IS_STRING(model_is_string, "model", WARN);
359CHECK_IS_STRING(status_is_string, "status", WARN);
360
361static void fixup_addr_size_cells(struct check *c, struct node *dt,
362 struct node *node)
363{
364 struct property *prop;
365
366 node->addr_cells = -1;
367 node->size_cells = -1;
368
369 prop = get_property(node, "#address-cells");
370 if (prop)
371 node->addr_cells = propval_cell(prop);
372
373 prop = get_property(node, "#size-cells");
374 if (prop)
375 node->size_cells = propval_cell(prop);
376}
377CHECK(addr_size_cells, NULL, fixup_addr_size_cells, NULL, NULL, WARN,
378 &address_cells_is_cell, &size_cells_is_cell);
379
380#define node_addr_cells(n) \
381 (((n)->addr_cells == -1) ? 2 : (n)->addr_cells)
382#define node_size_cells(n) \
383 (((n)->size_cells == -1) ? 1 : (n)->size_cells)
384
385static void check_reg_format(struct check *c, struct node *dt,
386 struct node *node)
387{
388 struct property *prop;
389 int addr_cells, size_cells, entrylen;
390
391 prop = get_property(node, "reg");
392 if (!prop)
393 return; /* No "reg", that's fine */
394
395 if (!node->parent) {
396 FAIL(c, "Root node has a \"reg\" property");
397 return;
398 }
399
400 if (prop->val.len == 0)
401 FAIL(c, "\"reg\" property in %s is empty", node->fullpath);
402
403 addr_cells = node_addr_cells(node->parent);
404 size_cells = node_size_cells(node->parent);
405 entrylen = (addr_cells + size_cells) * sizeof(cell_t);
406
407 if ((prop->val.len % entrylen) != 0)
408 FAIL(c, "\"reg\" property in %s has invalid length (%d bytes) "
409 "(#address-cells == %d, #size-cells == %d)",
410 node->fullpath, prop->val.len, addr_cells, size_cells);
411}
412NODE_CHECK(reg_format, NULL, WARN, &addr_size_cells);
413
414static void check_ranges_format(struct check *c, struct node *dt,
415 struct node *node)
416{
417 struct property *prop;
418 int c_addr_cells, p_addr_cells, c_size_cells, p_size_cells, entrylen;
419
420 prop = get_property(node, "ranges");
421 if (!prop)
422 return;
423
424 if (!node->parent) {
425 FAIL(c, "Root node has a \"ranges\" property");
426 return;
427 }
428
429 p_addr_cells = node_addr_cells(node->parent);
430 p_size_cells = node_size_cells(node->parent);
431 c_addr_cells = node_addr_cells(node);
432 c_size_cells = node_size_cells(node);
433 entrylen = (p_addr_cells + c_addr_cells + c_size_cells) * sizeof(cell_t);
434
435 if (prop->val.len == 0) {
436 if (p_addr_cells != c_addr_cells)
437 FAIL(c, "%s has empty \"ranges\" property but its "
438 "#address-cells (%d) differs from %s (%d)",
439 node->fullpath, c_addr_cells, node->parent->fullpath,
440 p_addr_cells);
441 if (p_size_cells != c_size_cells)
442 FAIL(c, "%s has empty \"ranges\" property but its "
443 "#size-cells (%d) differs from %s (%d)",
444 node->fullpath, c_size_cells, node->parent->fullpath,
445 p_size_cells);
446 } else if ((prop->val.len % entrylen) != 0) {
447 FAIL(c, "\"ranges\" property in %s has invalid length (%d bytes) "
448 "(parent #address-cells == %d, child #address-cells == %d, "
449 "#size-cells == %d)", node->fullpath, prop->val.len,
450 p_addr_cells, c_addr_cells, c_size_cells);
451 }
452}
453NODE_CHECK(ranges_format, NULL, WARN, &addr_size_cells);
454
455/*
456 * Style checks
457 */
458static void check_avoid_default_addr_size(struct check *c, struct node *dt,
459 struct node *node)
460{
461 struct property *reg, *ranges;
462
463 if (!node->parent)
464 return; /* Ignore root node */
465
466 reg = get_property(node, "reg");
467 ranges = get_property(node, "ranges");
468
469 if (!reg && !ranges)
470 return;
471
472 if ((node->parent->addr_cells == -1))
473 FAIL(c, "Relying on default #address-cells value for %s",
474 node->fullpath);
475
476 if ((node->parent->size_cells == -1))
477 FAIL(c, "Relying on default #size-cells value for %s",
478 node->fullpath);
479}
480NODE_CHECK(avoid_default_addr_size, NULL, WARN, &addr_size_cells);
481
482static void check_obsolete_chosen_interrupt_controller(struct check *c,
483 struct node *dt)
484{
485 struct node *chosen;
486 struct property *prop;
487
488 chosen = get_node_by_path(dt, "/chosen");
489 if (!chosen)
490 return;
491
492 prop = get_property(chosen, "interrupt-controller");
493 if (prop)
494 FAIL(c, "/chosen has obsolete \"interrupt-controller\" "
495 "property");
496}
497TREE_CHECK(obsolete_chosen_interrupt_controller, NULL, WARN);
498
499static struct check *check_table[] = {
500 &duplicate_node_names, &duplicate_property_names,
501 &name_is_string, &name_properties,
502 &explicit_phandles,
503 &phandle_references, &path_references,
504
505 &address_cells_is_cell, &size_cells_is_cell, &interrupt_cells_is_cell,
506 &device_type_is_string, &model_is_string, &status_is_string,
507
508 &addr_size_cells, &reg_format, &ranges_format,
509
510 &avoid_default_addr_size,
511 &obsolete_chosen_interrupt_controller,
512};
513
514int check_semantics(struct node *dt, int outversion, int boot_cpuid_phys);
515
516void process_checks(int force, struct boot_info *bi,
517 int checkflag, int outversion, int boot_cpuid_phys)
518{
519 struct node *dt = bi->dt;
520 int i;
521 int error = 0;
522
523 for (i = 0; i < ARRAY_SIZE(check_table); i++) {
524 struct check *c = check_table[i];
525
526 if (c->level != IGNORE)
527 error = error || run_check(c, dt);
528 }
529
530 if (error) {
531 if (!force) {
532 fprintf(stderr, "ERROR: Input tree has errors, aborting "
533 "(use -f to force output)\n");
534 exit(2);
535 } else if (quiet < 3) {
536 fprintf(stderr, "Warning: Input tree has errors, "
537 "output forced\n");
538 }
539 }
540
541 if (checkflag) {
542 if (error) {
543 fprintf(stderr, "Warning: Skipping semantic checks due to structural errors\n");
544 } else {
545 if (!check_semantics(bi->dt, outversion,
546 boot_cpuid_phys))
547 fprintf(stderr, "Warning: Input tree has semantic errors\n");
548 }
549 }
550}
551
552/*
553 * Semantic check functions
554 */
555
556#define ERRMSG(...) if (quiet < 2) fprintf(stderr, "ERROR: " __VA_ARGS__)
557#define WARNMSG(...) if (quiet < 1) fprintf(stderr, "Warning: " __VA_ARGS__)
558
559#define DO_ERR(...) do {ERRMSG(__VA_ARGS__); ok = 0; } while (0)
560
561#define CHECK_HAVE(node, propname) \
562 do { \
563 if (! (prop = get_property((node), (propname)))) \
564 DO_ERR("Missing \"%s\" property in %s\n", (propname), \
565 (node)->fullpath); \
566 } while (0);
567
568#define CHECK_HAVE_WARN(node, propname) \
569 do { \
570 if (! (prop = get_property((node), (propname)))) \
571 WARNMSG("%s has no \"%s\" property\n", \
572 (node)->fullpath, (propname)); \
573 } while (0)
574
575#define CHECK_HAVE_STRING(node, propname) \
576 do { \
577 CHECK_HAVE((node), (propname)); \
578 if (prop && !data_is_one_string(prop->val)) \
579 DO_ERR("\"%s\" property in %s is not a string\n", \
580 (propname), (node)->fullpath); \
581 } while (0)
582
583#define CHECK_HAVE_STREQ(node, propname, value) \
584 do { \
585 CHECK_HAVE_STRING((node), (propname)); \
586 if (prop && !streq(prop->val.val, (value))) \
587 DO_ERR("%s has wrong %s, %s (should be %s\n", \
588 (node)->fullpath, (propname), \
589 prop->val.val, (value)); \
590 } while (0)
591
592#define CHECK_HAVE_ONECELL(node, propname) \
593 do { \
594 CHECK_HAVE((node), (propname)); \
595 if (prop && (prop->val.len != sizeof(cell_t))) \
596 DO_ERR("\"%s\" property in %s has wrong size %d (should be 1 cell)\n", (propname), (node)->fullpath, prop->val.len); \
597 } while (0)
598
599#define CHECK_HAVE_WARN_ONECELL(node, propname) \
600 do { \
601 CHECK_HAVE_WARN((node), (propname)); \
602 if (prop && (prop->val.len != sizeof(cell_t))) \
603 DO_ERR("\"%s\" property in %s has wrong size %d (should be 1 cell)\n", (propname), (node)->fullpath, prop->val.len); \
604 } while (0)
605
606#define CHECK_HAVE_WARN_PHANDLE(xnode, propname, root) \
607 do { \
608 struct node *ref; \
609 CHECK_HAVE_WARN_ONECELL((xnode), (propname)); \
610 if (prop) {\
611 cell_t phandle = propval_cell(prop); \
612 if ((phandle == 0) || (phandle == -1)) { \
613 DO_ERR("\"%s\" property in %s contains an invalid phandle %x\n", (propname), (xnode)->fullpath, phandle); \
614 } else { \
615 ref = get_node_by_phandle((root), propval_cell(prop)); \
616 if (! ref) \
617 DO_ERR("\"%s\" property in %s refers to non-existant phandle %x\n", (propname), (xnode)->fullpath, propval_cell(prop)); \
618 } \
619 } \
620 } while (0)
621
622#define CHECK_HAVE_WARN_STRING(node, propname) \
623 do { \
624 CHECK_HAVE_WARN((node), (propname)); \
625 if (prop && !data_is_one_string(prop->val)) \
626 DO_ERR("\"%s\" property in %s is not a string\n", \
627 (propname), (node)->fullpath); \
628 } while (0)
629
630static int check_root(struct node *root)
631{
632 struct property *prop;
633 int ok = 1;
634
635 CHECK_HAVE_STRING(root, "model");
636 CHECK_HAVE_WARN(root, "compatible");
637
638 return ok;
639}
640
641static int check_cpus(struct node *root, int outversion, int boot_cpuid_phys)
642{
643 struct node *cpus, *cpu;
644 struct property *prop;
645 struct node *bootcpu = NULL;
646 int ok = 1;
647
648 cpus = get_subnode(root, "cpus");
649 if (! cpus) {
650 ERRMSG("Missing /cpus node\n");
651 return 0;
652 }
653
654 if (cpus->addr_cells != 1)
655 DO_ERR("%s has bad #address-cells value %d (should be 1)\n",
656 cpus->fullpath, cpus->addr_cells);
657 if (cpus->size_cells != 0)
658 DO_ERR("%s has bad #size-cells value %d (should be 0)\n",
659 cpus->fullpath, cpus->size_cells);
660
661 for_each_child(cpus, cpu) {
662 CHECK_HAVE_STREQ(cpu, "device_type", "cpu");
663
664 CHECK_HAVE_ONECELL(cpu, "reg");
665 if (prop) {
666 cell_t unitnum;
667 char *eptr;
668
669 unitnum = strtol(get_unitname(cpu), &eptr, 16);
670 if (*eptr) {
671 WARNMSG("%s has bad format unit name %s (should be CPU number\n",
672 cpu->fullpath, get_unitname(cpu));
673 } else if (unitnum != propval_cell(prop)) {
674 WARNMSG("%s unit name \"%s\" does not match \"reg\" property <%x>\n",
675 cpu->fullpath, get_unitname(cpu),
676 propval_cell(prop));
677 }
678 }
679
680/* CHECK_HAVE_ONECELL(cpu, "d-cache-line-size"); */
681/* CHECK_HAVE_ONECELL(cpu, "i-cache-line-size"); */
682 CHECK_HAVE_ONECELL(cpu, "d-cache-size");
683 CHECK_HAVE_ONECELL(cpu, "i-cache-size");
684
685 CHECK_HAVE_WARN_ONECELL(cpu, "clock-frequency");
686 CHECK_HAVE_WARN_ONECELL(cpu, "timebase-frequency");
687
688 prop = get_property(cpu, "linux,boot-cpu");
689 if (prop) {
690 if (prop->val.len)
691 WARNMSG("\"linux,boot-cpu\" property in %s is non-empty\n",
692 cpu->fullpath);
693 if (bootcpu)
694 DO_ERR("Multiple boot cpus (%s and %s)\n",
695 bootcpu->fullpath, cpu->fullpath);
696 else
697 bootcpu = cpu;
698 }
699 }
700
701 if (outversion < 2) {
702 if (! bootcpu)
703 WARNMSG("No cpu has \"linux,boot-cpu\" property\n");
704 } else {
705 if (bootcpu)
706 WARNMSG("\"linux,boot-cpu\" property is deprecated in blob version 2 or higher\n");
707 if (boot_cpuid_phys == 0xfeedbeef)
708 WARNMSG("physical boot CPU not set. Use -b option to set\n");
709 }
710
711 return ok;
712}
713
714static int check_memory(struct node *root)
715{
716 struct node *mem;
717 struct property *prop;
718 int nnodes = 0;
719 int ok = 1;
720
721 for_each_child(root, mem) {
722 if (! strneq(mem->name, "memory", mem->basenamelen))
723 continue;
724
725 nnodes++;
726
727 CHECK_HAVE_STREQ(mem, "device_type", "memory");
728 CHECK_HAVE(mem, "reg");
729 }
730
731 if (nnodes == 0) {
732 ERRMSG("No memory nodes\n");
733 return 0;
734 }
735
736 return ok;
737}
738
739int check_semantics(struct node *dt, int outversion, int boot_cpuid_phys)
740{
741 int ok = 1;
742
743 ok = ok && check_root(dt);
744 ok = ok && check_cpus(dt, outversion, boot_cpuid_phys);
745 ok = ok && check_memory(dt);
746 if (! ok)
747 return 0;
748
749 return 1;
750}
kernel source for telekom puls (alcatel/mediatek)