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9e512045 SG |
1 | /* |
2 | * Copyright (c) 2017 Google, Inc | |
3 | * Written by Simon Glass <sjg@chromium.org> | |
4 | * | |
5 | * SPDX-License-Identifier: GPL-2.0+ | |
6 | */ | |
7 | ||
8 | #include <common.h> | |
9 | #include <dm.h> | |
10 | #include <fdtdec.h> | |
11 | #include <fdt_support.h> | |
12 | #include <libfdt.h> | |
13 | #include <dm/of_access.h> | |
bed77496 | 14 | #include <dm/of_addr.h> |
9e512045 SG |
15 | #include <dm/ofnode.h> |
16 | #include <linux/err.h> | |
dcf98852 | 17 | #include <linux/ioport.h> |
9e512045 SG |
18 | |
19 | int ofnode_read_u32(ofnode node, const char *propname, u32 *outp) | |
20 | { | |
21 | assert(ofnode_valid(node)); | |
22 | debug("%s: %s: ", __func__, propname); | |
23 | ||
24 | if (ofnode_is_np(node)) { | |
25 | return of_read_u32(ofnode_to_np(node), propname, outp); | |
26 | } else { | |
8c9eaada | 27 | const fdt32_t *cell; |
9e512045 SG |
28 | int len; |
29 | ||
30 | cell = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), | |
31 | propname, &len); | |
32 | if (!cell || len < sizeof(int)) { | |
33 | debug("(not found)\n"); | |
34 | return -EINVAL; | |
35 | } | |
36 | *outp = fdt32_to_cpu(cell[0]); | |
37 | } | |
38 | debug("%#x (%d)\n", *outp, *outp); | |
39 | ||
40 | return 0; | |
41 | } | |
42 | ||
43 | int ofnode_read_u32_default(ofnode node, const char *propname, u32 def) | |
44 | { | |
45 | assert(ofnode_valid(node)); | |
46 | ofnode_read_u32(node, propname, &def); | |
47 | ||
48 | return def; | |
49 | } | |
50 | ||
51 | int ofnode_read_s32_default(ofnode node, const char *propname, s32 def) | |
52 | { | |
53 | assert(ofnode_valid(node)); | |
54 | ofnode_read_u32(node, propname, (u32 *)&def); | |
55 | ||
56 | return def; | |
57 | } | |
58 | ||
59 | bool ofnode_read_bool(ofnode node, const char *propname) | |
60 | { | |
b2ec7ea7 | 61 | const void *prop; |
9e512045 SG |
62 | |
63 | assert(ofnode_valid(node)); | |
64 | debug("%s: %s: ", __func__, propname); | |
65 | ||
b2ec7ea7 MY |
66 | prop = ofnode_get_property(node, propname, NULL); |
67 | ||
68 | debug("%s\n", prop ? "true" : "false"); | |
9e512045 | 69 | |
b2ec7ea7 | 70 | return prop ? true : false; |
9e512045 SG |
71 | } |
72 | ||
73 | const char *ofnode_read_string(ofnode node, const char *propname) | |
74 | { | |
75 | const char *str = NULL; | |
76 | int len = -1; | |
77 | ||
78 | assert(ofnode_valid(node)); | |
79 | debug("%s: %s: ", __func__, propname); | |
80 | ||
81 | if (ofnode_is_np(node)) { | |
82 | struct property *prop = of_find_property( | |
83 | ofnode_to_np(node), propname, NULL); | |
84 | ||
85 | if (prop) { | |
86 | str = prop->value; | |
87 | len = prop->length; | |
88 | } | |
89 | } else { | |
90 | str = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), | |
91 | propname, &len); | |
92 | } | |
93 | if (!str) { | |
94 | debug("<not found>\n"); | |
95 | return NULL; | |
96 | } | |
97 | if (strnlen(str, len) >= len) { | |
98 | debug("<invalid>\n"); | |
99 | return NULL; | |
100 | } | |
101 | debug("%s\n", str); | |
102 | ||
103 | return str; | |
104 | } | |
105 | ||
106 | ofnode ofnode_find_subnode(ofnode node, const char *subnode_name) | |
107 | { | |
108 | ofnode subnode; | |
109 | ||
110 | assert(ofnode_valid(node)); | |
111 | debug("%s: %s: ", __func__, subnode_name); | |
112 | ||
113 | if (ofnode_is_np(node)) { | |
114 | const struct device_node *np = ofnode_to_np(node); | |
115 | ||
116 | for (np = np->child; np; np = np->sibling) { | |
117 | if (!strcmp(subnode_name, np->name)) | |
118 | break; | |
119 | } | |
120 | subnode = np_to_ofnode(np); | |
121 | } else { | |
122 | int ooffset = fdt_subnode_offset(gd->fdt_blob, | |
123 | ofnode_to_offset(node), subnode_name); | |
124 | subnode = offset_to_ofnode(ooffset); | |
125 | } | |
126 | debug("%s\n", ofnode_valid(subnode) ? | |
127 | ofnode_get_name(subnode) : "<none>"); | |
128 | ||
129 | return subnode; | |
130 | } | |
131 | ||
132 | int ofnode_read_u32_array(ofnode node, const char *propname, | |
133 | u32 *out_values, size_t sz) | |
134 | { | |
135 | assert(ofnode_valid(node)); | |
136 | debug("%s: %s: ", __func__, propname); | |
137 | ||
138 | if (ofnode_is_np(node)) { | |
139 | return of_read_u32_array(ofnode_to_np(node), propname, | |
140 | out_values, sz); | |
141 | } else { | |
142 | return fdtdec_get_int_array(gd->fdt_blob, | |
143 | ofnode_to_offset(node), propname, | |
144 | out_values, sz); | |
145 | } | |
146 | } | |
147 | ||
148 | ofnode ofnode_first_subnode(ofnode node) | |
149 | { | |
150 | assert(ofnode_valid(node)); | |
151 | if (ofnode_is_np(node)) | |
152 | return np_to_ofnode(node.np->child); | |
153 | ||
154 | return offset_to_ofnode( | |
155 | fdt_first_subnode(gd->fdt_blob, ofnode_to_offset(node))); | |
156 | } | |
157 | ||
158 | ofnode ofnode_next_subnode(ofnode node) | |
159 | { | |
160 | assert(ofnode_valid(node)); | |
161 | if (ofnode_is_np(node)) | |
162 | return np_to_ofnode(node.np->sibling); | |
163 | ||
164 | return offset_to_ofnode( | |
165 | fdt_next_subnode(gd->fdt_blob, ofnode_to_offset(node))); | |
166 | } | |
167 | ||
e2d5997f PT |
168 | ofnode ofnode_get_parent(ofnode node) |
169 | { | |
170 | ofnode parent; | |
171 | ||
172 | assert(ofnode_valid(node)); | |
173 | if (ofnode_is_np(node)) | |
174 | parent = np_to_ofnode(of_get_parent(ofnode_to_np(node))); | |
175 | else | |
176 | parent.of_offset = fdt_parent_offset(gd->fdt_blob, | |
177 | ofnode_to_offset(node)); | |
178 | ||
179 | return parent; | |
180 | } | |
181 | ||
9e512045 SG |
182 | const char *ofnode_get_name(ofnode node) |
183 | { | |
184 | assert(ofnode_valid(node)); | |
185 | if (ofnode_is_np(node)) | |
186 | return strrchr(node.np->full_name, '/') + 1; | |
187 | ||
188 | return fdt_get_name(gd->fdt_blob, ofnode_to_offset(node), NULL); | |
189 | } | |
190 | ||
b4f20767 KY |
191 | ofnode ofnode_get_by_phandle(uint phandle) |
192 | { | |
193 | ofnode node; | |
194 | ||
195 | if (of_live_active()) | |
196 | node = np_to_ofnode(of_find_node_by_phandle(phandle)); | |
197 | else | |
198 | node.of_offset = fdt_node_offset_by_phandle(gd->fdt_blob, | |
199 | phandle); | |
200 | ||
201 | return node; | |
202 | } | |
203 | ||
9e512045 SG |
204 | int ofnode_read_size(ofnode node, const char *propname) |
205 | { | |
206 | int len; | |
207 | ||
208 | if (ofnode_is_np(node)) { | |
209 | struct property *prop = of_find_property( | |
210 | ofnode_to_np(node), propname, NULL); | |
211 | ||
212 | if (prop) | |
213 | return prop->length; | |
214 | } else { | |
215 | if (fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), propname, | |
216 | &len)) | |
217 | return len; | |
218 | } | |
219 | ||
220 | return -EINVAL; | |
221 | } | |
222 | ||
bed77496 SG |
223 | fdt_addr_t ofnode_get_addr_index(ofnode node, int index) |
224 | { | |
225 | if (ofnode_is_np(node)) { | |
226 | const __be32 *prop_val; | |
227 | uint flags; | |
228 | u64 size; | |
0f6507a7 | 229 | int na; |
bed77496 | 230 | |
0f6507a7 SG |
231 | prop_val = of_get_address(ofnode_to_np(node), index, &size, |
232 | &flags); | |
bed77496 SG |
233 | if (!prop_val) |
234 | return FDT_ADDR_T_NONE; | |
286ede65 MS |
235 | |
236 | if (IS_ENABLED(CONFIG_OF_TRANSLATE)) { | |
237 | return of_translate_address(ofnode_to_np(node), prop_val); | |
238 | } else { | |
239 | na = of_n_addr_cells(ofnode_to_np(node)); | |
240 | return of_read_number(prop_val, na); | |
241 | } | |
bed77496 SG |
242 | } else { |
243 | return fdt_get_base_address(gd->fdt_blob, | |
244 | ofnode_to_offset(node)); | |
245 | } | |
246 | ||
247 | return FDT_ADDR_T_NONE; | |
248 | } | |
249 | ||
250 | fdt_addr_t ofnode_get_addr(ofnode node) | |
251 | { | |
252 | return ofnode_get_addr_index(node, 0); | |
253 | } | |
254 | ||
9e512045 SG |
255 | int ofnode_stringlist_search(ofnode node, const char *property, |
256 | const char *string) | |
257 | { | |
258 | if (ofnode_is_np(node)) { | |
259 | return of_property_match_string(ofnode_to_np(node), | |
260 | property, string); | |
261 | } else { | |
262 | int ret; | |
263 | ||
264 | ret = fdt_stringlist_search(gd->fdt_blob, | |
265 | ofnode_to_offset(node), property, | |
266 | string); | |
267 | if (ret == -FDT_ERR_NOTFOUND) | |
268 | return -ENODATA; | |
269 | else if (ret < 0) | |
270 | return -EINVAL; | |
271 | ||
272 | return ret; | |
273 | } | |
274 | } | |
275 | ||
276 | int ofnode_read_string_index(ofnode node, const char *property, int index, | |
277 | const char **outp) | |
278 | { | |
279 | if (ofnode_is_np(node)) { | |
280 | return of_property_read_string_index(ofnode_to_np(node), | |
281 | property, index, outp); | |
282 | } else { | |
283 | int len; | |
284 | ||
285 | *outp = fdt_stringlist_get(gd->fdt_blob, ofnode_to_offset(node), | |
286 | property, index, &len); | |
287 | if (len < 0) | |
288 | return -EINVAL; | |
289 | return 0; | |
290 | } | |
291 | } | |
292 | ||
8c293d6a SG |
293 | int ofnode_read_string_count(ofnode node, const char *property) |
294 | { | |
295 | if (ofnode_is_np(node)) { | |
296 | return of_property_count_strings(ofnode_to_np(node), property); | |
297 | } else { | |
298 | return fdt_stringlist_count(gd->fdt_blob, | |
299 | ofnode_to_offset(node), property); | |
300 | } | |
301 | } | |
302 | ||
9e512045 SG |
303 | static void ofnode_from_fdtdec_phandle_args(struct fdtdec_phandle_args *in, |
304 | struct ofnode_phandle_args *out) | |
305 | { | |
306 | assert(OF_MAX_PHANDLE_ARGS == MAX_PHANDLE_ARGS); | |
307 | out->node = offset_to_ofnode(in->node); | |
308 | out->args_count = in->args_count; | |
309 | memcpy(out->args, in->args, sizeof(out->args)); | |
310 | } | |
311 | ||
312 | static void ofnode_from_of_phandle_args(struct of_phandle_args *in, | |
313 | struct ofnode_phandle_args *out) | |
314 | { | |
315 | assert(OF_MAX_PHANDLE_ARGS == MAX_PHANDLE_ARGS); | |
316 | out->node = np_to_ofnode(in->np); | |
317 | out->args_count = in->args_count; | |
318 | memcpy(out->args, in->args, sizeof(out->args)); | |
319 | } | |
320 | ||
321 | int ofnode_parse_phandle_with_args(ofnode node, const char *list_name, | |
322 | const char *cells_name, int cell_count, | |
323 | int index, | |
324 | struct ofnode_phandle_args *out_args) | |
325 | { | |
326 | if (ofnode_is_np(node)) { | |
327 | struct of_phandle_args args; | |
328 | int ret; | |
329 | ||
330 | ret = of_parse_phandle_with_args(ofnode_to_np(node), | |
51db287a MS |
331 | list_name, cells_name, index, |
332 | &args); | |
9e512045 SG |
333 | if (ret) |
334 | return ret; | |
335 | ofnode_from_of_phandle_args(&args, out_args); | |
336 | } else { | |
337 | struct fdtdec_phandle_args args; | |
338 | int ret; | |
339 | ||
340 | ret = fdtdec_parse_phandle_with_args(gd->fdt_blob, | |
51db287a MS |
341 | ofnode_to_offset(node), |
342 | list_name, cells_name, | |
343 | cell_count, index, &args); | |
9e512045 SG |
344 | if (ret) |
345 | return ret; | |
346 | ofnode_from_fdtdec_phandle_args(&args, out_args); | |
347 | } | |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
642346ae PC |
352 | int ofnode_count_phandle_with_args(ofnode node, const char *list_name, |
353 | const char *cells_name) | |
354 | { | |
355 | if (ofnode_is_np(node)) | |
356 | return of_count_phandle_with_args(ofnode_to_np(node), | |
357 | list_name, cells_name); | |
358 | else | |
359 | return fdtdec_parse_phandle_with_args(gd->fdt_blob, | |
360 | ofnode_to_offset(node), list_name, cells_name, | |
361 | 0, -1, NULL); | |
362 | } | |
363 | ||
9e512045 SG |
364 | ofnode ofnode_path(const char *path) |
365 | { | |
366 | if (of_live_active()) | |
367 | return np_to_ofnode(of_find_node_by_path(path)); | |
368 | else | |
369 | return offset_to_ofnode(fdt_path_offset(gd->fdt_blob, path)); | |
370 | } | |
371 | ||
372 | const char *ofnode_get_chosen_prop(const char *name) | |
373 | { | |
374 | ofnode chosen_node; | |
375 | ||
376 | chosen_node = ofnode_path("/chosen"); | |
377 | ||
378 | return ofnode_read_string(chosen_node, name); | |
379 | } | |
380 | ||
381 | ofnode ofnode_get_chosen_node(const char *name) | |
382 | { | |
383 | const char *prop; | |
384 | ||
385 | prop = ofnode_get_chosen_prop(name); | |
386 | if (!prop) | |
387 | return ofnode_null(); | |
388 | ||
389 | return ofnode_path(prop); | |
390 | } | |
391 | ||
392 | static int decode_timing_property(ofnode node, const char *name, | |
393 | struct timing_entry *result) | |
394 | { | |
395 | int length, ret = 0; | |
396 | ||
397 | length = ofnode_read_size(node, name); | |
398 | if (length < 0) { | |
399 | debug("%s: could not find property %s\n", | |
400 | ofnode_get_name(node), name); | |
401 | return length; | |
402 | } | |
403 | ||
404 | if (length == sizeof(u32)) { | |
405 | result->typ = ofnode_read_u32_default(node, name, 0); | |
406 | result->min = result->typ; | |
407 | result->max = result->typ; | |
408 | } else { | |
409 | ret = ofnode_read_u32_array(node, name, &result->min, 3); | |
410 | } | |
411 | ||
412 | return ret; | |
413 | } | |
414 | ||
415 | int ofnode_decode_display_timing(ofnode parent, int index, | |
416 | struct display_timing *dt) | |
417 | { | |
418 | int i; | |
419 | ofnode timings, node; | |
420 | u32 val = 0; | |
421 | int ret = 0; | |
422 | ||
423 | timings = ofnode_find_subnode(parent, "display-timings"); | |
424 | if (!ofnode_valid(timings)) | |
425 | return -EINVAL; | |
426 | ||
3991f42e SG |
427 | i = 0; |
428 | ofnode_for_each_subnode(node, timings) { | |
429 | if (i++ == index) | |
430 | break; | |
431 | } | |
9e512045 SG |
432 | |
433 | if (!ofnode_valid(node)) | |
434 | return -EINVAL; | |
435 | ||
436 | memset(dt, 0, sizeof(*dt)); | |
437 | ||
438 | ret |= decode_timing_property(node, "hback-porch", &dt->hback_porch); | |
439 | ret |= decode_timing_property(node, "hfront-porch", &dt->hfront_porch); | |
440 | ret |= decode_timing_property(node, "hactive", &dt->hactive); | |
441 | ret |= decode_timing_property(node, "hsync-len", &dt->hsync_len); | |
442 | ret |= decode_timing_property(node, "vback-porch", &dt->vback_porch); | |
443 | ret |= decode_timing_property(node, "vfront-porch", &dt->vfront_porch); | |
444 | ret |= decode_timing_property(node, "vactive", &dt->vactive); | |
445 | ret |= decode_timing_property(node, "vsync-len", &dt->vsync_len); | |
446 | ret |= decode_timing_property(node, "clock-frequency", &dt->pixelclock); | |
447 | ||
448 | dt->flags = 0; | |
449 | val = ofnode_read_u32_default(node, "vsync-active", -1); | |
450 | if (val != -1) { | |
451 | dt->flags |= val ? DISPLAY_FLAGS_VSYNC_HIGH : | |
452 | DISPLAY_FLAGS_VSYNC_LOW; | |
453 | } | |
454 | val = ofnode_read_u32_default(node, "hsync-active", -1); | |
455 | if (val != -1) { | |
456 | dt->flags |= val ? DISPLAY_FLAGS_HSYNC_HIGH : | |
457 | DISPLAY_FLAGS_HSYNC_LOW; | |
458 | } | |
459 | val = ofnode_read_u32_default(node, "de-active", -1); | |
460 | if (val != -1) { | |
461 | dt->flags |= val ? DISPLAY_FLAGS_DE_HIGH : | |
462 | DISPLAY_FLAGS_DE_LOW; | |
463 | } | |
464 | val = ofnode_read_u32_default(node, "pixelclk-active", -1); | |
465 | if (val != -1) { | |
466 | dt->flags |= val ? DISPLAY_FLAGS_PIXDATA_POSEDGE : | |
467 | DISPLAY_FLAGS_PIXDATA_NEGEDGE; | |
468 | } | |
469 | ||
470 | if (ofnode_read_bool(node, "interlaced")) | |
471 | dt->flags |= DISPLAY_FLAGS_INTERLACED; | |
472 | if (ofnode_read_bool(node, "doublescan")) | |
473 | dt->flags |= DISPLAY_FLAGS_DOUBLESCAN; | |
474 | if (ofnode_read_bool(node, "doubleclk")) | |
475 | dt->flags |= DISPLAY_FLAGS_DOUBLECLK; | |
476 | ||
477 | return ret; | |
478 | } | |
479 | ||
61e51bab | 480 | const void *ofnode_get_property(ofnode node, const char *propname, int *lenp) |
9e512045 | 481 | { |
cb7dbe1f MY |
482 | if (ofnode_is_np(node)) |
483 | return of_get_property(ofnode_to_np(node), propname, lenp); | |
484 | else | |
9e512045 SG |
485 | return fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), |
486 | propname, lenp); | |
9e512045 SG |
487 | } |
488 | ||
489 | bool ofnode_is_available(ofnode node) | |
490 | { | |
491 | if (ofnode_is_np(node)) | |
492 | return of_device_is_available(ofnode_to_np(node)); | |
493 | else | |
494 | return fdtdec_get_is_enabled(gd->fdt_blob, | |
495 | ofnode_to_offset(node)); | |
496 | } | |
497 | ||
498 | fdt_addr_t ofnode_get_addr_size(ofnode node, const char *property, | |
499 | fdt_size_t *sizep) | |
500 | { | |
501 | if (ofnode_is_np(node)) { | |
502 | int na, ns; | |
503 | int psize; | |
504 | const struct device_node *np = ofnode_to_np(node); | |
68a34529 | 505 | const __be32 *prop = of_get_property(np, property, &psize); |
9e512045 | 506 | |
68a34529 KG |
507 | if (!prop) |
508 | return FDT_ADDR_T_NONE; | |
9e512045 SG |
509 | na = of_n_addr_cells(np); |
510 | ns = of_n_addr_cells(np); | |
a4b8e372 SG |
511 | *sizep = of_read_number(prop + na, ns); |
512 | return of_read_number(prop, na); | |
9e512045 SG |
513 | } else { |
514 | return fdtdec_get_addr_size(gd->fdt_blob, | |
515 | ofnode_to_offset(node), property, | |
516 | sizep); | |
517 | } | |
518 | } | |
519 | ||
520 | const uint8_t *ofnode_read_u8_array_ptr(ofnode node, const char *propname, | |
521 | size_t sz) | |
522 | { | |
523 | if (ofnode_is_np(node)) { | |
524 | const struct device_node *np = ofnode_to_np(node); | |
525 | int psize; | |
526 | const __be32 *prop = of_get_property(np, propname, &psize); | |
527 | ||
528 | if (!prop || sz != psize) | |
529 | return NULL; | |
530 | return (uint8_t *)prop; | |
531 | ||
532 | } else { | |
533 | return fdtdec_locate_byte_array(gd->fdt_blob, | |
534 | ofnode_to_offset(node), propname, sz); | |
535 | } | |
536 | } | |
537 | ||
538 | int ofnode_read_pci_addr(ofnode node, enum fdt_pci_space type, | |
539 | const char *propname, struct fdt_pci_addr *addr) | |
540 | { | |
8c9eaada | 541 | const fdt32_t *cell; |
9e512045 SG |
542 | int len; |
543 | int ret = -ENOENT; | |
544 | ||
545 | debug("%s: %s: ", __func__, propname); | |
546 | ||
547 | /* | |
548 | * If we follow the pci bus bindings strictly, we should check | |
549 | * the value of the node's parent node's #address-cells and | |
550 | * #size-cells. They need to be 3 and 2 accordingly. However, | |
551 | * for simplicity we skip the check here. | |
552 | */ | |
61e51bab | 553 | cell = ofnode_get_property(node, propname, &len); |
9e512045 SG |
554 | if (!cell) |
555 | goto fail; | |
556 | ||
557 | if ((len % FDT_PCI_REG_SIZE) == 0) { | |
558 | int num = len / FDT_PCI_REG_SIZE; | |
559 | int i; | |
560 | ||
561 | for (i = 0; i < num; i++) { | |
562 | debug("pci address #%d: %08lx %08lx %08lx\n", i, | |
563 | (ulong)fdt32_to_cpu(cell[0]), | |
564 | (ulong)fdt32_to_cpu(cell[1]), | |
565 | (ulong)fdt32_to_cpu(cell[2])); | |
566 | if ((fdt32_to_cpu(*cell) & type) == type) { | |
567 | addr->phys_hi = fdt32_to_cpu(cell[0]); | |
568 | addr->phys_mid = fdt32_to_cpu(cell[1]); | |
569 | addr->phys_lo = fdt32_to_cpu(cell[1]); | |
570 | break; | |
9e512045 | 571 | } |
51db287a MS |
572 | |
573 | cell += (FDT_PCI_ADDR_CELLS + | |
574 | FDT_PCI_SIZE_CELLS); | |
9e512045 SG |
575 | } |
576 | ||
577 | if (i == num) { | |
578 | ret = -ENXIO; | |
579 | goto fail; | |
580 | } | |
581 | ||
582 | return 0; | |
9e512045 SG |
583 | } |
584 | ||
51db287a MS |
585 | ret = -EINVAL; |
586 | ||
9e512045 SG |
587 | fail: |
588 | debug("(not found)\n"); | |
589 | return ret; | |
590 | } | |
591 | ||
592 | int ofnode_read_addr_cells(ofnode node) | |
593 | { | |
594 | if (ofnode_is_np(node)) | |
595 | return of_n_addr_cells(ofnode_to_np(node)); | |
878d68c0 | 596 | else /* NOTE: this call should walk up the parent stack */ |
9e512045 SG |
597 | return fdt_address_cells(gd->fdt_blob, ofnode_to_offset(node)); |
598 | } | |
599 | ||
600 | int ofnode_read_size_cells(ofnode node) | |
601 | { | |
602 | if (ofnode_is_np(node)) | |
603 | return of_n_size_cells(ofnode_to_np(node)); | |
878d68c0 SG |
604 | else /* NOTE: this call should walk up the parent stack */ |
605 | return fdt_size_cells(gd->fdt_blob, ofnode_to_offset(node)); | |
606 | } | |
607 | ||
608 | int ofnode_read_simple_addr_cells(ofnode node) | |
609 | { | |
610 | if (ofnode_is_np(node)) | |
611 | return of_simple_addr_cells(ofnode_to_np(node)); | |
612 | else | |
613 | return fdt_address_cells(gd->fdt_blob, ofnode_to_offset(node)); | |
614 | } | |
615 | ||
616 | int ofnode_read_simple_size_cells(ofnode node) | |
617 | { | |
618 | if (ofnode_is_np(node)) | |
619 | return of_simple_size_cells(ofnode_to_np(node)); | |
9e512045 SG |
620 | else |
621 | return fdt_size_cells(gd->fdt_blob, ofnode_to_offset(node)); | |
622 | } | |
623 | ||
624 | bool ofnode_pre_reloc(ofnode node) | |
625 | { | |
252510ac | 626 | if (ofnode_read_bool(node, "u-boot,dm-pre-reloc")) |
9e512045 SG |
627 | return true; |
628 | ||
629 | #ifdef CONFIG_TPL_BUILD | |
252510ac | 630 | if (ofnode_read_bool(node, "u-boot,dm-tpl")) |
9e512045 SG |
631 | return true; |
632 | #elif defined(CONFIG_SPL_BUILD) | |
252510ac | 633 | if (ofnode_read_bool(node, "u-boot,dm-spl")) |
9e512045 SG |
634 | return true; |
635 | #else | |
636 | /* | |
637 | * In regular builds individual spl and tpl handling both | |
638 | * count as handled pre-relocation for later second init. | |
639 | */ | |
252510ac MY |
640 | if (ofnode_read_bool(node, "u-boot,dm-spl") || |
641 | ofnode_read_bool(node, "u-boot,dm-tpl")) | |
9e512045 SG |
642 | return true; |
643 | #endif | |
644 | ||
645 | return false; | |
646 | } | |
dcf98852 SG |
647 | |
648 | int ofnode_read_resource(ofnode node, uint index, struct resource *res) | |
649 | { | |
650 | if (ofnode_is_np(node)) { | |
651 | return of_address_to_resource(ofnode_to_np(node), index, res); | |
652 | } else { | |
653 | struct fdt_resource fres; | |
654 | int ret; | |
655 | ||
656 | ret = fdt_get_resource(gd->fdt_blob, ofnode_to_offset(node), | |
657 | "reg", index, &fres); | |
658 | if (ret < 0) | |
659 | return -EINVAL; | |
660 | memset(res, '\0', sizeof(*res)); | |
661 | res->start = fres.start; | |
662 | res->end = fres.end; | |
663 | ||
664 | return 0; | |
665 | } | |
666 | } | |
7b8b47bd MY |
667 | |
668 | int ofnode_read_resource_byname(ofnode node, const char *name, | |
669 | struct resource *res) | |
670 | { | |
671 | int index; | |
672 | ||
673 | index = ofnode_stringlist_search(node, "reg-names", name); | |
674 | if (index < 0) | |
675 | return index; | |
676 | ||
677 | return ofnode_read_resource(node, index, res); | |
678 | } | |
147c6074 MS |
679 | |
680 | u64 ofnode_translate_address(ofnode node, const fdt32_t *in_addr) | |
681 | { | |
682 | if (ofnode_is_np(node)) | |
683 | return of_translate_address(ofnode_to_np(node), in_addr); | |
684 | else | |
685 | return fdt_translate_address(gd->fdt_blob, ofnode_to_offset(node), in_addr); | |
686 | } |