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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 | ||
191 | int ofnode_read_size(ofnode node, const char *propname) | |
192 | { | |
193 | int len; | |
194 | ||
195 | if (ofnode_is_np(node)) { | |
196 | struct property *prop = of_find_property( | |
197 | ofnode_to_np(node), propname, NULL); | |
198 | ||
199 | if (prop) | |
200 | return prop->length; | |
201 | } else { | |
202 | if (fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), propname, | |
203 | &len)) | |
204 | return len; | |
205 | } | |
206 | ||
207 | return -EINVAL; | |
208 | } | |
209 | ||
bed77496 SG |
210 | fdt_addr_t ofnode_get_addr_index(ofnode node, int index) |
211 | { | |
212 | if (ofnode_is_np(node)) { | |
213 | const __be32 *prop_val; | |
214 | uint flags; | |
215 | u64 size; | |
0f6507a7 | 216 | int na; |
bed77496 | 217 | |
0f6507a7 SG |
218 | prop_val = of_get_address(ofnode_to_np(node), index, &size, |
219 | &flags); | |
bed77496 SG |
220 | if (!prop_val) |
221 | return FDT_ADDR_T_NONE; | |
286ede65 MS |
222 | |
223 | if (IS_ENABLED(CONFIG_OF_TRANSLATE)) { | |
224 | return of_translate_address(ofnode_to_np(node), prop_val); | |
225 | } else { | |
226 | na = of_n_addr_cells(ofnode_to_np(node)); | |
227 | return of_read_number(prop_val, na); | |
228 | } | |
bed77496 SG |
229 | } else { |
230 | return fdt_get_base_address(gd->fdt_blob, | |
231 | ofnode_to_offset(node)); | |
232 | } | |
233 | ||
234 | return FDT_ADDR_T_NONE; | |
235 | } | |
236 | ||
237 | fdt_addr_t ofnode_get_addr(ofnode node) | |
238 | { | |
239 | return ofnode_get_addr_index(node, 0); | |
240 | } | |
241 | ||
9e512045 SG |
242 | int ofnode_stringlist_search(ofnode node, const char *property, |
243 | const char *string) | |
244 | { | |
245 | if (ofnode_is_np(node)) { | |
246 | return of_property_match_string(ofnode_to_np(node), | |
247 | property, string); | |
248 | } else { | |
249 | int ret; | |
250 | ||
251 | ret = fdt_stringlist_search(gd->fdt_blob, | |
252 | ofnode_to_offset(node), property, | |
253 | string); | |
254 | if (ret == -FDT_ERR_NOTFOUND) | |
255 | return -ENODATA; | |
256 | else if (ret < 0) | |
257 | return -EINVAL; | |
258 | ||
259 | return ret; | |
260 | } | |
261 | } | |
262 | ||
263 | int ofnode_read_string_index(ofnode node, const char *property, int index, | |
264 | const char **outp) | |
265 | { | |
266 | if (ofnode_is_np(node)) { | |
267 | return of_property_read_string_index(ofnode_to_np(node), | |
268 | property, index, outp); | |
269 | } else { | |
270 | int len; | |
271 | ||
272 | *outp = fdt_stringlist_get(gd->fdt_blob, ofnode_to_offset(node), | |
273 | property, index, &len); | |
274 | if (len < 0) | |
275 | return -EINVAL; | |
276 | return 0; | |
277 | } | |
278 | } | |
279 | ||
8c293d6a SG |
280 | int ofnode_read_string_count(ofnode node, const char *property) |
281 | { | |
282 | if (ofnode_is_np(node)) { | |
283 | return of_property_count_strings(ofnode_to_np(node), property); | |
284 | } else { | |
285 | return fdt_stringlist_count(gd->fdt_blob, | |
286 | ofnode_to_offset(node), property); | |
287 | } | |
288 | } | |
289 | ||
9e512045 SG |
290 | static void ofnode_from_fdtdec_phandle_args(struct fdtdec_phandle_args *in, |
291 | struct ofnode_phandle_args *out) | |
292 | { | |
293 | assert(OF_MAX_PHANDLE_ARGS == MAX_PHANDLE_ARGS); | |
294 | out->node = offset_to_ofnode(in->node); | |
295 | out->args_count = in->args_count; | |
296 | memcpy(out->args, in->args, sizeof(out->args)); | |
297 | } | |
298 | ||
299 | static void ofnode_from_of_phandle_args(struct of_phandle_args *in, | |
300 | struct ofnode_phandle_args *out) | |
301 | { | |
302 | assert(OF_MAX_PHANDLE_ARGS == MAX_PHANDLE_ARGS); | |
303 | out->node = np_to_ofnode(in->np); | |
304 | out->args_count = in->args_count; | |
305 | memcpy(out->args, in->args, sizeof(out->args)); | |
306 | } | |
307 | ||
308 | int ofnode_parse_phandle_with_args(ofnode node, const char *list_name, | |
309 | const char *cells_name, int cell_count, | |
310 | int index, | |
311 | struct ofnode_phandle_args *out_args) | |
312 | { | |
313 | if (ofnode_is_np(node)) { | |
314 | struct of_phandle_args args; | |
315 | int ret; | |
316 | ||
317 | ret = of_parse_phandle_with_args(ofnode_to_np(node), | |
51db287a MS |
318 | list_name, cells_name, index, |
319 | &args); | |
9e512045 SG |
320 | if (ret) |
321 | return ret; | |
322 | ofnode_from_of_phandle_args(&args, out_args); | |
323 | } else { | |
324 | struct fdtdec_phandle_args args; | |
325 | int ret; | |
326 | ||
327 | ret = fdtdec_parse_phandle_with_args(gd->fdt_blob, | |
51db287a MS |
328 | ofnode_to_offset(node), |
329 | list_name, cells_name, | |
330 | cell_count, index, &args); | |
9e512045 SG |
331 | if (ret) |
332 | return ret; | |
333 | ofnode_from_fdtdec_phandle_args(&args, out_args); | |
334 | } | |
335 | ||
336 | return 0; | |
337 | } | |
338 | ||
642346ae PC |
339 | int ofnode_count_phandle_with_args(ofnode node, const char *list_name, |
340 | const char *cells_name) | |
341 | { | |
342 | if (ofnode_is_np(node)) | |
343 | return of_count_phandle_with_args(ofnode_to_np(node), | |
344 | list_name, cells_name); | |
345 | else | |
346 | return fdtdec_parse_phandle_with_args(gd->fdt_blob, | |
347 | ofnode_to_offset(node), list_name, cells_name, | |
348 | 0, -1, NULL); | |
349 | } | |
350 | ||
9e512045 SG |
351 | ofnode ofnode_path(const char *path) |
352 | { | |
353 | if (of_live_active()) | |
354 | return np_to_ofnode(of_find_node_by_path(path)); | |
355 | else | |
356 | return offset_to_ofnode(fdt_path_offset(gd->fdt_blob, path)); | |
357 | } | |
358 | ||
359 | const char *ofnode_get_chosen_prop(const char *name) | |
360 | { | |
361 | ofnode chosen_node; | |
362 | ||
363 | chosen_node = ofnode_path("/chosen"); | |
364 | ||
365 | return ofnode_read_string(chosen_node, name); | |
366 | } | |
367 | ||
368 | ofnode ofnode_get_chosen_node(const char *name) | |
369 | { | |
370 | const char *prop; | |
371 | ||
372 | prop = ofnode_get_chosen_prop(name); | |
373 | if (!prop) | |
374 | return ofnode_null(); | |
375 | ||
376 | return ofnode_path(prop); | |
377 | } | |
378 | ||
379 | static int decode_timing_property(ofnode node, const char *name, | |
380 | struct timing_entry *result) | |
381 | { | |
382 | int length, ret = 0; | |
383 | ||
384 | length = ofnode_read_size(node, name); | |
385 | if (length < 0) { | |
386 | debug("%s: could not find property %s\n", | |
387 | ofnode_get_name(node), name); | |
388 | return length; | |
389 | } | |
390 | ||
391 | if (length == sizeof(u32)) { | |
392 | result->typ = ofnode_read_u32_default(node, name, 0); | |
393 | result->min = result->typ; | |
394 | result->max = result->typ; | |
395 | } else { | |
396 | ret = ofnode_read_u32_array(node, name, &result->min, 3); | |
397 | } | |
398 | ||
399 | return ret; | |
400 | } | |
401 | ||
402 | int ofnode_decode_display_timing(ofnode parent, int index, | |
403 | struct display_timing *dt) | |
404 | { | |
405 | int i; | |
406 | ofnode timings, node; | |
407 | u32 val = 0; | |
408 | int ret = 0; | |
409 | ||
410 | timings = ofnode_find_subnode(parent, "display-timings"); | |
411 | if (!ofnode_valid(timings)) | |
412 | return -EINVAL; | |
413 | ||
3991f42e SG |
414 | i = 0; |
415 | ofnode_for_each_subnode(node, timings) { | |
416 | if (i++ == index) | |
417 | break; | |
418 | } | |
9e512045 SG |
419 | |
420 | if (!ofnode_valid(node)) | |
421 | return -EINVAL; | |
422 | ||
423 | memset(dt, 0, sizeof(*dt)); | |
424 | ||
425 | ret |= decode_timing_property(node, "hback-porch", &dt->hback_porch); | |
426 | ret |= decode_timing_property(node, "hfront-porch", &dt->hfront_porch); | |
427 | ret |= decode_timing_property(node, "hactive", &dt->hactive); | |
428 | ret |= decode_timing_property(node, "hsync-len", &dt->hsync_len); | |
429 | ret |= decode_timing_property(node, "vback-porch", &dt->vback_porch); | |
430 | ret |= decode_timing_property(node, "vfront-porch", &dt->vfront_porch); | |
431 | ret |= decode_timing_property(node, "vactive", &dt->vactive); | |
432 | ret |= decode_timing_property(node, "vsync-len", &dt->vsync_len); | |
433 | ret |= decode_timing_property(node, "clock-frequency", &dt->pixelclock); | |
434 | ||
435 | dt->flags = 0; | |
436 | val = ofnode_read_u32_default(node, "vsync-active", -1); | |
437 | if (val != -1) { | |
438 | dt->flags |= val ? DISPLAY_FLAGS_VSYNC_HIGH : | |
439 | DISPLAY_FLAGS_VSYNC_LOW; | |
440 | } | |
441 | val = ofnode_read_u32_default(node, "hsync-active", -1); | |
442 | if (val != -1) { | |
443 | dt->flags |= val ? DISPLAY_FLAGS_HSYNC_HIGH : | |
444 | DISPLAY_FLAGS_HSYNC_LOW; | |
445 | } | |
446 | val = ofnode_read_u32_default(node, "de-active", -1); | |
447 | if (val != -1) { | |
448 | dt->flags |= val ? DISPLAY_FLAGS_DE_HIGH : | |
449 | DISPLAY_FLAGS_DE_LOW; | |
450 | } | |
451 | val = ofnode_read_u32_default(node, "pixelclk-active", -1); | |
452 | if (val != -1) { | |
453 | dt->flags |= val ? DISPLAY_FLAGS_PIXDATA_POSEDGE : | |
454 | DISPLAY_FLAGS_PIXDATA_NEGEDGE; | |
455 | } | |
456 | ||
457 | if (ofnode_read_bool(node, "interlaced")) | |
458 | dt->flags |= DISPLAY_FLAGS_INTERLACED; | |
459 | if (ofnode_read_bool(node, "doublescan")) | |
460 | dt->flags |= DISPLAY_FLAGS_DOUBLESCAN; | |
461 | if (ofnode_read_bool(node, "doubleclk")) | |
462 | dt->flags |= DISPLAY_FLAGS_DOUBLECLK; | |
463 | ||
464 | return ret; | |
465 | } | |
466 | ||
61e51bab | 467 | const void *ofnode_get_property(ofnode node, const char *propname, int *lenp) |
9e512045 | 468 | { |
cb7dbe1f MY |
469 | if (ofnode_is_np(node)) |
470 | return of_get_property(ofnode_to_np(node), propname, lenp); | |
471 | else | |
9e512045 SG |
472 | return fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), |
473 | propname, lenp); | |
9e512045 SG |
474 | } |
475 | ||
476 | bool ofnode_is_available(ofnode node) | |
477 | { | |
478 | if (ofnode_is_np(node)) | |
479 | return of_device_is_available(ofnode_to_np(node)); | |
480 | else | |
481 | return fdtdec_get_is_enabled(gd->fdt_blob, | |
482 | ofnode_to_offset(node)); | |
483 | } | |
484 | ||
485 | fdt_addr_t ofnode_get_addr_size(ofnode node, const char *property, | |
486 | fdt_size_t *sizep) | |
487 | { | |
488 | if (ofnode_is_np(node)) { | |
489 | int na, ns; | |
490 | int psize; | |
491 | const struct device_node *np = ofnode_to_np(node); | |
68a34529 | 492 | const __be32 *prop = of_get_property(np, property, &psize); |
9e512045 | 493 | |
68a34529 KG |
494 | if (!prop) |
495 | return FDT_ADDR_T_NONE; | |
9e512045 SG |
496 | na = of_n_addr_cells(np); |
497 | ns = of_n_addr_cells(np); | |
a4b8e372 SG |
498 | *sizep = of_read_number(prop + na, ns); |
499 | return of_read_number(prop, na); | |
9e512045 SG |
500 | } else { |
501 | return fdtdec_get_addr_size(gd->fdt_blob, | |
502 | ofnode_to_offset(node), property, | |
503 | sizep); | |
504 | } | |
505 | } | |
506 | ||
507 | const uint8_t *ofnode_read_u8_array_ptr(ofnode node, const char *propname, | |
508 | size_t sz) | |
509 | { | |
510 | if (ofnode_is_np(node)) { | |
511 | const struct device_node *np = ofnode_to_np(node); | |
512 | int psize; | |
513 | const __be32 *prop = of_get_property(np, propname, &psize); | |
514 | ||
515 | if (!prop || sz != psize) | |
516 | return NULL; | |
517 | return (uint8_t *)prop; | |
518 | ||
519 | } else { | |
520 | return fdtdec_locate_byte_array(gd->fdt_blob, | |
521 | ofnode_to_offset(node), propname, sz); | |
522 | } | |
523 | } | |
524 | ||
525 | int ofnode_read_pci_addr(ofnode node, enum fdt_pci_space type, | |
526 | const char *propname, struct fdt_pci_addr *addr) | |
527 | { | |
8c9eaada | 528 | const fdt32_t *cell; |
9e512045 SG |
529 | int len; |
530 | int ret = -ENOENT; | |
531 | ||
532 | debug("%s: %s: ", __func__, propname); | |
533 | ||
534 | /* | |
535 | * If we follow the pci bus bindings strictly, we should check | |
536 | * the value of the node's parent node's #address-cells and | |
537 | * #size-cells. They need to be 3 and 2 accordingly. However, | |
538 | * for simplicity we skip the check here. | |
539 | */ | |
61e51bab | 540 | cell = ofnode_get_property(node, propname, &len); |
9e512045 SG |
541 | if (!cell) |
542 | goto fail; | |
543 | ||
544 | if ((len % FDT_PCI_REG_SIZE) == 0) { | |
545 | int num = len / FDT_PCI_REG_SIZE; | |
546 | int i; | |
547 | ||
548 | for (i = 0; i < num; i++) { | |
549 | debug("pci address #%d: %08lx %08lx %08lx\n", i, | |
550 | (ulong)fdt32_to_cpu(cell[0]), | |
551 | (ulong)fdt32_to_cpu(cell[1]), | |
552 | (ulong)fdt32_to_cpu(cell[2])); | |
553 | if ((fdt32_to_cpu(*cell) & type) == type) { | |
554 | addr->phys_hi = fdt32_to_cpu(cell[0]); | |
555 | addr->phys_mid = fdt32_to_cpu(cell[1]); | |
556 | addr->phys_lo = fdt32_to_cpu(cell[1]); | |
557 | break; | |
9e512045 | 558 | } |
51db287a MS |
559 | |
560 | cell += (FDT_PCI_ADDR_CELLS + | |
561 | FDT_PCI_SIZE_CELLS); | |
9e512045 SG |
562 | } |
563 | ||
564 | if (i == num) { | |
565 | ret = -ENXIO; | |
566 | goto fail; | |
567 | } | |
568 | ||
569 | return 0; | |
9e512045 SG |
570 | } |
571 | ||
51db287a MS |
572 | ret = -EINVAL; |
573 | ||
9e512045 SG |
574 | fail: |
575 | debug("(not found)\n"); | |
576 | return ret; | |
577 | } | |
578 | ||
579 | int ofnode_read_addr_cells(ofnode node) | |
580 | { | |
581 | if (ofnode_is_np(node)) | |
582 | return of_n_addr_cells(ofnode_to_np(node)); | |
878d68c0 | 583 | else /* NOTE: this call should walk up the parent stack */ |
9e512045 SG |
584 | return fdt_address_cells(gd->fdt_blob, ofnode_to_offset(node)); |
585 | } | |
586 | ||
587 | int ofnode_read_size_cells(ofnode node) | |
588 | { | |
589 | if (ofnode_is_np(node)) | |
590 | return of_n_size_cells(ofnode_to_np(node)); | |
878d68c0 SG |
591 | else /* NOTE: this call should walk up the parent stack */ |
592 | return fdt_size_cells(gd->fdt_blob, ofnode_to_offset(node)); | |
593 | } | |
594 | ||
595 | int ofnode_read_simple_addr_cells(ofnode node) | |
596 | { | |
597 | if (ofnode_is_np(node)) | |
598 | return of_simple_addr_cells(ofnode_to_np(node)); | |
599 | else | |
600 | return fdt_address_cells(gd->fdt_blob, ofnode_to_offset(node)); | |
601 | } | |
602 | ||
603 | int ofnode_read_simple_size_cells(ofnode node) | |
604 | { | |
605 | if (ofnode_is_np(node)) | |
606 | return of_simple_size_cells(ofnode_to_np(node)); | |
9e512045 SG |
607 | else |
608 | return fdt_size_cells(gd->fdt_blob, ofnode_to_offset(node)); | |
609 | } | |
610 | ||
611 | bool ofnode_pre_reloc(ofnode node) | |
612 | { | |
252510ac | 613 | if (ofnode_read_bool(node, "u-boot,dm-pre-reloc")) |
9e512045 SG |
614 | return true; |
615 | ||
616 | #ifdef CONFIG_TPL_BUILD | |
252510ac | 617 | if (ofnode_read_bool(node, "u-boot,dm-tpl")) |
9e512045 SG |
618 | return true; |
619 | #elif defined(CONFIG_SPL_BUILD) | |
252510ac | 620 | if (ofnode_read_bool(node, "u-boot,dm-spl")) |
9e512045 SG |
621 | return true; |
622 | #else | |
623 | /* | |
624 | * In regular builds individual spl and tpl handling both | |
625 | * count as handled pre-relocation for later second init. | |
626 | */ | |
252510ac MY |
627 | if (ofnode_read_bool(node, "u-boot,dm-spl") || |
628 | ofnode_read_bool(node, "u-boot,dm-tpl")) | |
9e512045 SG |
629 | return true; |
630 | #endif | |
631 | ||
632 | return false; | |
633 | } | |
dcf98852 SG |
634 | |
635 | int ofnode_read_resource(ofnode node, uint index, struct resource *res) | |
636 | { | |
637 | if (ofnode_is_np(node)) { | |
638 | return of_address_to_resource(ofnode_to_np(node), index, res); | |
639 | } else { | |
640 | struct fdt_resource fres; | |
641 | int ret; | |
642 | ||
643 | ret = fdt_get_resource(gd->fdt_blob, ofnode_to_offset(node), | |
644 | "reg", index, &fres); | |
645 | if (ret < 0) | |
646 | return -EINVAL; | |
647 | memset(res, '\0', sizeof(*res)); | |
648 | res->start = fres.start; | |
649 | res->end = fres.end; | |
650 | ||
651 | return 0; | |
652 | } | |
653 | } | |
7b8b47bd MY |
654 | |
655 | int ofnode_read_resource_byname(ofnode node, const char *name, | |
656 | struct resource *res) | |
657 | { | |
658 | int index; | |
659 | ||
660 | index = ofnode_stringlist_search(node, "reg-names", name); | |
661 | if (index < 0) | |
662 | return index; | |
663 | ||
664 | return ofnode_read_resource(node, index, res); | |
665 | } | |
147c6074 MS |
666 | |
667 | u64 ofnode_translate_address(ofnode node, const fdt32_t *in_addr) | |
668 | { | |
669 | if (ofnode_is_np(node)) | |
670 | return of_translate_address(ofnode_to_np(node), in_addr); | |
671 | else | |
672 | return fdt_translate_address(gd->fdt_blob, ofnode_to_offset(node), in_addr); | |
673 | } |