1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (c) 2017 Google, Inc
4 * Written by Simon Glass <sjg@chromium.org>
10 #include <fdt_support.h>
13 #include <linux/libfdt.h>
14 #include <dm/of_access.h>
15 #include <dm/of_addr.h>
16 #include <dm/ofnode.h>
17 #include <linux/err.h>
18 #include <linux/ioport.h>
19 #include <asm/global_data.h>
21 bool ofnode_name_eq(ofnode node, const char *name)
23 const char *node_name;
26 assert(ofnode_valid(node));
28 node_name = ofnode_get_name(node);
29 len = strchrnul(node_name, '@') - node_name;
31 return (strlen(name) == len) && !strncmp(node_name, name, len);
34 int ofnode_read_u8(ofnode node, const char *propname, u8 *outp)
39 assert(ofnode_valid(node));
40 debug("%s: %s: ", __func__, propname);
42 if (ofnode_is_np(node))
43 return of_read_u8(ofnode_to_np(node), propname, outp);
45 cell = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), propname,
47 if (!cell || len < sizeof(*cell)) {
48 debug("(not found)\n");
52 debug("%#x (%d)\n", *outp, *outp);
57 u8 ofnode_read_u8_default(ofnode node, const char *propname, u8 def)
59 assert(ofnode_valid(node));
60 ofnode_read_u8(node, propname, &def);
65 int ofnode_read_u16(ofnode node, const char *propname, u16 *outp)
70 assert(ofnode_valid(node));
71 debug("%s: %s: ", __func__, propname);
73 if (ofnode_is_np(node))
74 return of_read_u16(ofnode_to_np(node), propname, outp);
76 cell = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), propname,
78 if (!cell || len < sizeof(*cell)) {
79 debug("(not found)\n");
82 *outp = be16_to_cpup(cell);
83 debug("%#x (%d)\n", *outp, *outp);
88 u16 ofnode_read_u16_default(ofnode node, const char *propname, u16 def)
90 assert(ofnode_valid(node));
91 ofnode_read_u16(node, propname, &def);
96 int ofnode_read_u32(ofnode node, const char *propname, u32 *outp)
98 return ofnode_read_u32_index(node, propname, 0, outp);
101 u32 ofnode_read_u32_default(ofnode node, const char *propname, u32 def)
103 assert(ofnode_valid(node));
104 ofnode_read_u32_index(node, propname, 0, &def);
109 int ofnode_read_u32_index(ofnode node, const char *propname, int index,
115 assert(ofnode_valid(node));
116 debug("%s: %s: ", __func__, propname);
118 if (ofnode_is_np(node))
119 return of_read_u32_index(ofnode_to_np(node), propname, index,
122 cell = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), propname,
125 debug("(not found)\n");
129 if (len < (sizeof(int) * (index + 1))) {
130 debug("(not large enough)\n");
134 *outp = fdt32_to_cpu(cell[index]);
135 debug("%#x (%d)\n", *outp, *outp);
140 u32 ofnode_read_u32_index_default(ofnode node, const char *propname, int index,
143 assert(ofnode_valid(node));
144 ofnode_read_u32_index(node, propname, index, &def);
149 int ofnode_read_s32_default(ofnode node, const char *propname, s32 def)
151 assert(ofnode_valid(node));
152 ofnode_read_u32(node, propname, (u32 *)&def);
157 int ofnode_read_u64(ofnode node, const char *propname, u64 *outp)
159 const unaligned_fdt64_t *cell;
162 assert(ofnode_valid(node));
163 debug("%s: %s: ", __func__, propname);
165 if (ofnode_is_np(node))
166 return of_read_u64(ofnode_to_np(node), propname, outp);
168 cell = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node), propname,
170 if (!cell || len < sizeof(*cell)) {
171 debug("(not found)\n");
174 *outp = fdt64_to_cpu(cell[0]);
175 debug("%#llx (%lld)\n", (unsigned long long)*outp,
176 (unsigned long long)*outp);
181 u64 ofnode_read_u64_default(ofnode node, const char *propname, u64 def)
183 assert(ofnode_valid(node));
184 ofnode_read_u64(node, propname, &def);
189 bool ofnode_read_bool(ofnode node, const char *propname)
193 assert(ofnode_valid(node));
194 debug("%s: %s: ", __func__, propname);
196 prop = ofnode_get_property(node, propname, NULL);
198 debug("%s\n", prop ? "true" : "false");
200 return prop ? true : false;
203 const void *ofnode_read_prop(ofnode node, const char *propname, int *sizep)
205 const char *val = NULL;
208 assert(ofnode_valid(node));
209 debug("%s: %s: ", __func__, propname);
211 if (ofnode_is_np(node)) {
212 struct property *prop = of_find_property(
213 ofnode_to_np(node), propname, &len);
220 val = fdt_getprop(gd->fdt_blob, ofnode_to_offset(node),
224 debug("<not found>\n");
226 *sizep = -FDT_ERR_NOTFOUND;
235 const char *ofnode_read_string(ofnode node, const char *propname)
240 str = ofnode_read_prop(node, propname, &len);
244 if (strnlen(str, len) >= len) {
245 debug("<invalid>\n");
253 int ofnode_read_size(ofnode node, const char *propname)
257 if (!ofnode_read_prop(node, propname, &len))
263 ofnode ofnode_find_subnode(ofnode node, const char *subnode_name)
267 assert(ofnode_valid(node));
268 debug("%s: %s: ", __func__, subnode_name);
270 if (ofnode_is_np(node)) {
271 struct device_node *np = ofnode_to_np(node);
273 for (np = np->child; np; np = np->sibling) {
274 if (!strcmp(subnode_name, np->name))
277 subnode = np_to_ofnode(np);
279 int ooffset = fdt_subnode_offset(gd->fdt_blob,
280 ofnode_to_offset(node), subnode_name);
281 subnode = offset_to_ofnode(ooffset);
283 debug("%s\n", ofnode_valid(subnode) ?
284 ofnode_get_name(subnode) : "<none>");
289 int ofnode_read_u32_array(ofnode node, const char *propname,
290 u32 *out_values, size_t sz)
292 assert(ofnode_valid(node));
293 debug("%s: %s: ", __func__, propname);
295 if (ofnode_is_np(node)) {
296 return of_read_u32_array(ofnode_to_np(node), propname,
299 return fdtdec_get_int_array(gd->fdt_blob,
300 ofnode_to_offset(node), propname,
305 #if !CONFIG_IS_ENABLED(DM_INLINE_OFNODE)
306 bool ofnode_is_enabled(ofnode node)
308 if (ofnode_is_np(node)) {
309 return of_device_is_available(ofnode_to_np(node));
311 return fdtdec_get_is_enabled(gd->fdt_blob,
312 ofnode_to_offset(node));
316 ofnode ofnode_first_subnode(ofnode node)
318 assert(ofnode_valid(node));
319 if (ofnode_is_np(node))
320 return np_to_ofnode(node.np->child);
322 return offset_to_ofnode(
323 fdt_first_subnode(gd->fdt_blob, ofnode_to_offset(node)));
326 ofnode ofnode_next_subnode(ofnode node)
328 assert(ofnode_valid(node));
329 if (ofnode_is_np(node))
330 return np_to_ofnode(node.np->sibling);
332 return offset_to_ofnode(
333 fdt_next_subnode(gd->fdt_blob, ofnode_to_offset(node)));
335 #endif /* !DM_INLINE_OFNODE */
337 ofnode ofnode_get_parent(ofnode node)
341 assert(ofnode_valid(node));
342 if (ofnode_is_np(node))
343 parent = np_to_ofnode(of_get_parent(ofnode_to_np(node)));
345 parent.of_offset = fdt_parent_offset(gd->fdt_blob,
346 ofnode_to_offset(node));
351 const char *ofnode_get_name(ofnode node)
353 if (!ofnode_valid(node)) {
354 debug("%s node not valid\n", __func__);
358 if (ofnode_is_np(node))
359 return node.np->name;
361 return fdt_get_name(gd->fdt_blob, ofnode_to_offset(node), NULL);
364 int ofnode_get_path(ofnode node, char *buf, int buflen)
366 assert(ofnode_valid(node));
368 if (ofnode_is_np(node)) {
369 if (strlen(node.np->full_name) >= buflen)
372 strcpy(buf, node.np->full_name);
378 res = fdt_get_path(gd->fdt_blob, ofnode_to_offset(node), buf,
382 else if (res == -FDT_ERR_NOSPACE)
389 ofnode ofnode_get_by_phandle(uint phandle)
393 if (of_live_active())
394 node = np_to_ofnode(of_find_node_by_phandle(NULL, phandle));
396 node.of_offset = fdt_node_offset_by_phandle(gd->fdt_blob,
402 static fdt_addr_t __ofnode_get_addr_size_index(ofnode node, int index,
403 fdt_size_t *size, bool translate)
408 *size = FDT_SIZE_T_NONE;
410 if (ofnode_is_np(node)) {
411 const __be32 *prop_val;
415 prop_val = of_get_address(ofnode_to_np(node), index, &size64,
418 return FDT_ADDR_T_NONE;
423 ns = of_n_size_cells(ofnode_to_np(node));
425 if (translate && IS_ENABLED(CONFIG_OF_TRANSLATE) && ns > 0) {
426 return of_translate_address(ofnode_to_np(node), prop_val);
428 na = of_n_addr_cells(ofnode_to_np(node));
429 return of_read_number(prop_val, na);
432 na = ofnode_read_simple_addr_cells(ofnode_get_parent(node));
433 ns = ofnode_read_simple_size_cells(ofnode_get_parent(node));
434 return fdtdec_get_addr_size_fixed(gd->fdt_blob,
435 ofnode_to_offset(node), "reg",
441 fdt_addr_t ofnode_get_addr_size_index(ofnode node, int index, fdt_size_t *size)
443 return __ofnode_get_addr_size_index(node, index, size, true);
446 fdt_addr_t ofnode_get_addr_size_index_notrans(ofnode node, int index,
449 return __ofnode_get_addr_size_index(node, index, size, false);
452 fdt_addr_t ofnode_get_addr_index(ofnode node, int index)
456 return ofnode_get_addr_size_index(node, index, &size);
459 fdt_addr_t ofnode_get_addr(ofnode node)
461 return ofnode_get_addr_index(node, 0);
464 fdt_size_t ofnode_get_size(ofnode node)
468 ofnode_get_addr_size_index(node, 0, &size);
473 int ofnode_stringlist_search(ofnode node, const char *property,
476 if (ofnode_is_np(node)) {
477 return of_property_match_string(ofnode_to_np(node),
482 ret = fdt_stringlist_search(gd->fdt_blob,
483 ofnode_to_offset(node), property,
485 if (ret == -FDT_ERR_NOTFOUND)
494 int ofnode_read_string_index(ofnode node, const char *property, int index,
497 if (ofnode_is_np(node)) {
498 return of_property_read_string_index(ofnode_to_np(node),
499 property, index, outp);
503 *outp = fdt_stringlist_get(gd->fdt_blob, ofnode_to_offset(node),
504 property, index, &len);
511 int ofnode_read_string_count(ofnode node, const char *property)
513 if (ofnode_is_np(node)) {
514 return of_property_count_strings(ofnode_to_np(node), property);
516 return fdt_stringlist_count(gd->fdt_blob,
517 ofnode_to_offset(node), property);
521 int ofnode_read_string_list(ofnode node, const char *property,
529 count = ofnode_read_string_count(node, property);
535 prop = calloc(count + 1, sizeof(char *));
539 for (i = 0; i < count; i++)
540 ofnode_read_string_index(node, property, i, &prop[i]);
547 static void ofnode_from_fdtdec_phandle_args(struct fdtdec_phandle_args *in,
548 struct ofnode_phandle_args *out)
550 assert(OF_MAX_PHANDLE_ARGS == MAX_PHANDLE_ARGS);
551 out->node = offset_to_ofnode(in->node);
552 out->args_count = in->args_count;
553 memcpy(out->args, in->args, sizeof(out->args));
556 static void ofnode_from_of_phandle_args(struct of_phandle_args *in,
557 struct ofnode_phandle_args *out)
559 assert(OF_MAX_PHANDLE_ARGS == MAX_PHANDLE_ARGS);
560 out->node = np_to_ofnode(in->np);
561 out->args_count = in->args_count;
562 memcpy(out->args, in->args, sizeof(out->args));
565 int ofnode_parse_phandle_with_args(ofnode node, const char *list_name,
566 const char *cells_name, int cell_count,
568 struct ofnode_phandle_args *out_args)
570 if (ofnode_is_np(node)) {
571 struct of_phandle_args args;
574 ret = of_parse_phandle_with_args(ofnode_to_np(node),
575 list_name, cells_name,
580 ofnode_from_of_phandle_args(&args, out_args);
582 struct fdtdec_phandle_args args;
585 ret = fdtdec_parse_phandle_with_args(gd->fdt_blob,
586 ofnode_to_offset(node),
587 list_name, cells_name,
588 cell_count, index, &args);
591 ofnode_from_fdtdec_phandle_args(&args, out_args);
597 int ofnode_count_phandle_with_args(ofnode node, const char *list_name,
598 const char *cells_name, int cell_count)
600 if (ofnode_is_np(node))
601 return of_count_phandle_with_args(ofnode_to_np(node),
602 list_name, cells_name, cell_count);
604 return fdtdec_parse_phandle_with_args(gd->fdt_blob,
605 ofnode_to_offset(node), list_name, cells_name,
606 cell_count, -1, NULL);
609 ofnode ofnode_path(const char *path)
611 if (of_live_active())
612 return np_to_ofnode(of_find_node_by_path(path));
614 return offset_to_ofnode(fdt_path_offset(gd->fdt_blob, path));
617 ofnode ofnode_path_root(oftree tree, const char *path)
619 if (of_live_active())
620 return np_to_ofnode(of_find_node_opts_by_path(tree.np, path,
622 else if (*path != '/' && tree.fdt != gd->fdt_blob)
623 return ofnode_null(); /* Aliases only on control FDT */
625 return offset_to_ofnode(fdt_path_offset(tree.fdt, path));
628 const void *ofnode_read_chosen_prop(const char *propname, int *sizep)
632 chosen_node = ofnode_path("/chosen");
634 return ofnode_read_prop(chosen_node, propname, sizep);
637 const char *ofnode_read_chosen_string(const char *propname)
639 return ofnode_read_chosen_prop(propname, NULL);
642 ofnode ofnode_get_chosen_node(const char *name)
646 prop = ofnode_read_chosen_prop(name, NULL);
648 return ofnode_null();
650 return ofnode_path(prop);
653 const void *ofnode_read_aliases_prop(const char *propname, int *sizep)
657 node = ofnode_path("/aliases");
659 return ofnode_read_prop(node, propname, sizep);
662 ofnode ofnode_get_aliases_node(const char *name)
666 prop = ofnode_read_aliases_prop(name, NULL);
668 return ofnode_null();
670 debug("%s: node_path: %s\n", __func__, prop);
672 return ofnode_path(prop);
675 int ofnode_get_child_count(ofnode parent)
680 ofnode_for_each_subnode(child, parent)
686 static int decode_timing_property(ofnode node, const char *name,
687 struct timing_entry *result)
691 length = ofnode_read_size(node, name);
693 debug("%s: could not find property %s\n",
694 ofnode_get_name(node), name);
698 if (length == sizeof(u32)) {
699 result->typ = ofnode_read_u32_default(node, name, 0);
700 result->min = result->typ;
701 result->max = result->typ;
703 ret = ofnode_read_u32_array(node, name, &result->min, 3);
709 int ofnode_decode_display_timing(ofnode parent, int index,
710 struct display_timing *dt)
713 ofnode timings, node;
717 timings = ofnode_find_subnode(parent, "display-timings");
718 if (!ofnode_valid(timings))
722 ofnode_for_each_subnode(node, timings) {
727 if (!ofnode_valid(node))
730 memset(dt, 0, sizeof(*dt));
732 ret |= decode_timing_property(node, "hback-porch", &dt->hback_porch);
733 ret |= decode_timing_property(node, "hfront-porch", &dt->hfront_porch);
734 ret |= decode_timing_property(node, "hactive", &dt->hactive);
735 ret |= decode_timing_property(node, "hsync-len", &dt->hsync_len);
736 ret |= decode_timing_property(node, "vback-porch", &dt->vback_porch);
737 ret |= decode_timing_property(node, "vfront-porch", &dt->vfront_porch);
738 ret |= decode_timing_property(node, "vactive", &dt->vactive);
739 ret |= decode_timing_property(node, "vsync-len", &dt->vsync_len);
740 ret |= decode_timing_property(node, "clock-frequency", &dt->pixelclock);
743 val = ofnode_read_u32_default(node, "vsync-active", -1);
745 dt->flags |= val ? DISPLAY_FLAGS_VSYNC_HIGH :
746 DISPLAY_FLAGS_VSYNC_LOW;
748 val = ofnode_read_u32_default(node, "hsync-active", -1);
750 dt->flags |= val ? DISPLAY_FLAGS_HSYNC_HIGH :
751 DISPLAY_FLAGS_HSYNC_LOW;
753 val = ofnode_read_u32_default(node, "de-active", -1);
755 dt->flags |= val ? DISPLAY_FLAGS_DE_HIGH :
756 DISPLAY_FLAGS_DE_LOW;
758 val = ofnode_read_u32_default(node, "pixelclk-active", -1);
760 dt->flags |= val ? DISPLAY_FLAGS_PIXDATA_POSEDGE :
761 DISPLAY_FLAGS_PIXDATA_NEGEDGE;
764 if (ofnode_read_bool(node, "interlaced"))
765 dt->flags |= DISPLAY_FLAGS_INTERLACED;
766 if (ofnode_read_bool(node, "doublescan"))
767 dt->flags |= DISPLAY_FLAGS_DOUBLESCAN;
768 if (ofnode_read_bool(node, "doubleclk"))
769 dt->flags |= DISPLAY_FLAGS_DOUBLECLK;
774 const void *ofnode_get_property(ofnode node, const char *propname, int *lenp)
776 if (ofnode_is_np(node))
777 return of_get_property(ofnode_to_np(node), propname, lenp);
779 return fdt_getprop(gd->fdt_blob, ofnode_to_offset(node),
783 int ofnode_first_property(ofnode node, struct ofprop *prop)
787 if (ofnode_is_np(node)) {
788 prop->prop = of_get_first_property(ofnode_to_np(prop->node));
790 return -FDT_ERR_NOTFOUND;
793 fdt_first_property_offset(gd->fdt_blob,
794 ofnode_to_offset(prop->node));
795 if (prop->offset < 0)
802 int ofnode_next_property(struct ofprop *prop)
804 if (ofnode_is_np(prop->node)) {
805 prop->prop = of_get_next_property(ofnode_to_np(prop->node),
808 return -FDT_ERR_NOTFOUND;
810 prop->offset = fdt_next_property_offset(gd->fdt_blob,
812 if (prop->offset < 0)
819 const void *ofprop_get_property(const struct ofprop *prop,
820 const char **propname, int *lenp)
822 if (ofnode_is_np(prop->node))
823 return of_get_property_by_prop(ofnode_to_np(prop->node),
824 prop->prop, propname, lenp);
826 return fdt_getprop_by_offset(gd->fdt_blob,
831 fdt_addr_t ofnode_get_addr_size(ofnode node, const char *property,
834 if (ofnode_is_np(node)) {
837 const struct device_node *np = ofnode_to_np(node);
838 const __be32 *prop = of_get_property(np, property, &psize);
841 return FDT_ADDR_T_NONE;
842 na = of_n_addr_cells(np);
843 ns = of_n_size_cells(np);
844 *sizep = of_read_number(prop + na, ns);
846 if (CONFIG_IS_ENABLED(OF_TRANSLATE) && ns > 0)
847 return of_translate_address(np, prop);
849 return of_read_number(prop, na);
851 return fdtdec_get_addr_size(gd->fdt_blob,
852 ofnode_to_offset(node), property,
857 const uint8_t *ofnode_read_u8_array_ptr(ofnode node, const char *propname,
860 if (ofnode_is_np(node)) {
861 const struct device_node *np = ofnode_to_np(node);
863 const __be32 *prop = of_get_property(np, propname, &psize);
865 if (!prop || sz != psize)
867 return (uint8_t *)prop;
870 return fdtdec_locate_byte_array(gd->fdt_blob,
871 ofnode_to_offset(node), propname, sz);
875 int ofnode_read_pci_addr(ofnode node, enum fdt_pci_space type,
876 const char *propname, struct fdt_pci_addr *addr)
882 debug("%s: %s: ", __func__, propname);
885 * If we follow the pci bus bindings strictly, we should check
886 * the value of the node's parent node's #address-cells and
887 * #size-cells. They need to be 3 and 2 accordingly. However,
888 * for simplicity we skip the check here.
890 cell = ofnode_get_property(node, propname, &len);
894 if ((len % FDT_PCI_REG_SIZE) == 0) {
895 int num = len / FDT_PCI_REG_SIZE;
898 for (i = 0; i < num; i++) {
899 debug("pci address #%d: %08lx %08lx %08lx\n", i,
900 (ulong)fdt32_to_cpu(cell[0]),
901 (ulong)fdt32_to_cpu(cell[1]),
902 (ulong)fdt32_to_cpu(cell[2]));
903 if ((fdt32_to_cpu(*cell) & type) == type) {
904 addr->phys_hi = fdt32_to_cpu(cell[0]);
905 addr->phys_mid = fdt32_to_cpu(cell[1]);
906 addr->phys_lo = fdt32_to_cpu(cell[2]);
910 cell += (FDT_PCI_ADDR_CELLS +
925 debug("(not found)\n");
929 int ofnode_read_pci_vendev(ofnode node, u16 *vendor, u16 *device)
931 const char *list, *end;
934 list = ofnode_get_property(node, "compatible", &len);
941 if (len >= strlen("pciVVVV,DDDD")) {
942 char *s = strstr(list, "pci");
945 * check if the string is something like pciVVVV,DDDD.RR
946 * or just pciVVVV,DDDD
948 if (s && s[7] == ',' &&
949 (s[12] == '.' || s[12] == 0)) {
951 *vendor = simple_strtol(s, NULL, 16);
954 *device = simple_strtol(s, NULL, 16);
965 int ofnode_read_eth_phy_id(ofnode node, u16 *vendor, u16 *device)
967 const char *list, *end;
970 list = ofnode_get_property(node, "compatible", &len);
979 if (len >= strlen("ethernet-phy-idVVVV,DDDD")) {
980 char *s = strstr(list, "ethernet-phy-id");
983 * check if the string is something like
984 * ethernet-phy-idVVVV,DDDD
986 if (s && s[19] == '.') {
987 s += strlen("ethernet-phy-id");
988 *vendor = simple_strtol(s, NULL, 16);
990 *device = simple_strtol(s, NULL, 16);
1001 int ofnode_read_addr_cells(ofnode node)
1003 if (ofnode_is_np(node)) {
1004 return of_n_addr_cells(ofnode_to_np(node));
1006 int parent = fdt_parent_offset(gd->fdt_blob,
1007 ofnode_to_offset(node));
1009 return fdt_address_cells(gd->fdt_blob, parent);
1013 int ofnode_read_size_cells(ofnode node)
1015 if (ofnode_is_np(node)) {
1016 return of_n_size_cells(ofnode_to_np(node));
1018 int parent = fdt_parent_offset(gd->fdt_blob,
1019 ofnode_to_offset(node));
1021 return fdt_size_cells(gd->fdt_blob, parent);
1025 int ofnode_read_simple_addr_cells(ofnode node)
1027 if (ofnode_is_np(node))
1028 return of_simple_addr_cells(ofnode_to_np(node));
1030 return fdt_address_cells(gd->fdt_blob, ofnode_to_offset(node));
1033 int ofnode_read_simple_size_cells(ofnode node)
1035 if (ofnode_is_np(node))
1036 return of_simple_size_cells(ofnode_to_np(node));
1038 return fdt_size_cells(gd->fdt_blob, ofnode_to_offset(node));
1041 bool ofnode_pre_reloc(ofnode node)
1043 #if defined(CONFIG_SPL_BUILD) || defined(CONFIG_TPL_BUILD)
1044 /* for SPL and TPL the remaining nodes after the fdtgrep 1st pass
1045 * had property dm-pre-reloc or u-boot,dm-spl/tpl.
1046 * They are removed in final dtb (fdtgrep 2nd pass)
1050 if (ofnode_read_bool(node, "u-boot,dm-pre-reloc"))
1052 if (ofnode_read_bool(node, "u-boot,dm-pre-proper"))
1056 * In regular builds individual spl and tpl handling both
1057 * count as handled pre-relocation for later second init.
1059 if (ofnode_read_bool(node, "u-boot,dm-spl") ||
1060 ofnode_read_bool(node, "u-boot,dm-tpl"))
1067 int ofnode_read_resource(ofnode node, uint index, struct resource *res)
1069 if (ofnode_is_np(node)) {
1070 return of_address_to_resource(ofnode_to_np(node), index, res);
1072 struct fdt_resource fres;
1075 ret = fdt_get_resource(gd->fdt_blob, ofnode_to_offset(node),
1076 "reg", index, &fres);
1079 memset(res, '\0', sizeof(*res));
1080 res->start = fres.start;
1081 res->end = fres.end;
1087 int ofnode_read_resource_byname(ofnode node, const char *name,
1088 struct resource *res)
1092 index = ofnode_stringlist_search(node, "reg-names", name);
1096 return ofnode_read_resource(node, index, res);
1099 u64 ofnode_translate_address(ofnode node, const fdt32_t *in_addr)
1101 if (ofnode_is_np(node))
1102 return of_translate_address(ofnode_to_np(node), in_addr);
1104 return fdt_translate_address(gd->fdt_blob, ofnode_to_offset(node), in_addr);
1107 u64 ofnode_translate_dma_address(ofnode node, const fdt32_t *in_addr)
1109 if (ofnode_is_np(node))
1110 return of_translate_dma_address(ofnode_to_np(node), in_addr);
1112 return fdt_translate_dma_address(gd->fdt_blob, ofnode_to_offset(node), in_addr);
1115 int ofnode_get_dma_range(ofnode node, phys_addr_t *cpu, dma_addr_t *bus, u64 *size)
1117 if (ofnode_is_np(node))
1118 return of_get_dma_range(ofnode_to_np(node), cpu, bus, size);
1120 return fdt_get_dma_range(gd->fdt_blob, ofnode_to_offset(node),
1124 int ofnode_device_is_compatible(ofnode node, const char *compat)
1126 if (ofnode_is_np(node))
1127 return of_device_is_compatible(ofnode_to_np(node), compat,
1130 return !fdt_node_check_compatible(gd->fdt_blob,
1131 ofnode_to_offset(node),
1135 ofnode ofnode_by_compatible(ofnode from, const char *compat)
1137 if (of_live_active()) {
1138 return np_to_ofnode(of_find_compatible_node(
1139 (struct device_node *)ofnode_to_np(from), NULL,
1142 return offset_to_ofnode(fdt_node_offset_by_compatible(
1143 gd->fdt_blob, ofnode_to_offset(from), compat));
1147 ofnode ofnode_by_prop_value(ofnode from, const char *propname,
1148 const void *propval, int proplen)
1150 if (of_live_active()) {
1151 return np_to_ofnode(of_find_node_by_prop_value(
1152 (struct device_node *)ofnode_to_np(from), propname,
1155 return offset_to_ofnode(fdt_node_offset_by_prop_value(
1156 gd->fdt_blob, ofnode_to_offset(from),
1157 propname, propval, proplen));
1161 int ofnode_write_prop(ofnode node, const char *propname, const void *value,
1164 if (of_live_active())
1165 return of_write_prop(ofnode_to_np(node), propname, len, value);
1167 return fdt_setprop((void *)gd->fdt_blob, ofnode_to_offset(node),
1168 propname, value, len);
1173 int ofnode_write_string(ofnode node, const char *propname, const char *value)
1175 assert(ofnode_valid(node));
1177 debug("%s: %s = %s", __func__, propname, value);
1179 return ofnode_write_prop(node, propname, value, strlen(value) + 1);
1182 int ofnode_write_u32(ofnode node, const char *propname, u32 value)
1186 assert(ofnode_valid(node));
1188 log_debug("%s = %x", propname, value);
1189 val = malloc(sizeof(*val));
1192 *val = cpu_to_fdt32(value);
1194 return ofnode_write_prop(node, propname, val, sizeof(value));
1197 int ofnode_set_enabled(ofnode node, bool value)
1199 assert(ofnode_valid(node));
1202 return ofnode_write_string(node, "status", "okay");
1204 return ofnode_write_string(node, "status", "disabled");
1207 bool ofnode_conf_read_bool(const char *prop_name)
1211 node = ofnode_path("/config");
1212 if (!ofnode_valid(node))
1215 return ofnode_read_bool(node, prop_name);
1218 int ofnode_conf_read_int(const char *prop_name, int default_val)
1222 node = ofnode_path("/config");
1223 if (!ofnode_valid(node))
1226 return ofnode_read_u32_default(node, prop_name, default_val);
1229 const char *ofnode_conf_read_str(const char *prop_name)
1233 node = ofnode_path("/config");
1234 if (!ofnode_valid(node))
1237 return ofnode_read_string(node, prop_name);
1240 ofnode ofnode_get_phy_node(ofnode node)
1242 /* DT node properties that reference a PHY node */
1243 static const char * const phy_handle_str[] = {
1244 "phy-handle", "phy", "phy-device",
1246 struct ofnode_phandle_args args = {
1247 .node = ofnode_null()
1251 assert(ofnode_valid(node));
1253 for (i = 0; i < ARRAY_SIZE(phy_handle_str); i++)
1254 if (!ofnode_parse_phandle_with_args(node, phy_handle_str[i],
1261 phy_interface_t ofnode_read_phy_mode(ofnode node)
1266 assert(ofnode_valid(node));
1268 mode = ofnode_read_string(node, "phy-mode");
1270 mode = ofnode_read_string(node, "phy-connection-type");
1273 return PHY_INTERFACE_MODE_NA;
1275 for (i = 0; i < PHY_INTERFACE_MODE_MAX; i++)
1276 if (!strcmp(mode, phy_interface_strings[i]))
1279 debug("%s: Invalid PHY interface '%s'\n", __func__, mode);
1281 return PHY_INTERFACE_MODE_NA;
1284 int ofnode_add_subnode(ofnode node, const char *name, ofnode *subnodep)
1289 assert(ofnode_valid(node));
1291 if (ofnode_is_np(node)) {
1292 struct device_node *np, *child;
1294 np = (struct device_node *)ofnode_to_np(node);
1295 ret = of_add_subnode(np, name, -1, &child);
1296 if (ret && ret != -EEXIST)
1298 subnode = np_to_ofnode(child);
1300 void *fdt = (void *)gd->fdt_blob;
1301 int poffset = ofnode_to_offset(node);
1304 offset = fdt_add_subnode(fdt, poffset, name);
1305 if (offset == -FDT_ERR_EXISTS) {
1306 offset = fdt_subnode_offset(fdt, poffset, name);
1311 subnode = offset_to_ofnode(offset);
1314 *subnodep = subnode;
1316 return ret; /* 0 or -EEXIST */