Lines Matching refs:fdt
10 #include <fdt.h>
15 static int fdt_blocks_misordered_(const void *fdt,
18 return (fdt_off_mem_rsvmap(fdt) < FDT_ALIGN(sizeof(struct fdt_header), 8))
19 || (fdt_off_dt_struct(fdt) <
20 (fdt_off_mem_rsvmap(fdt) + mem_rsv_size))
21 || (fdt_off_dt_strings(fdt) <
22 (fdt_off_dt_struct(fdt) + struct_size))
23 || (fdt_totalsize(fdt) <
24 (fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)));
27 static int fdt_rw_probe_(void *fdt)
29 FDT_RO_PROBE(fdt);
31 if (fdt_version(fdt) < 17)
33 if (fdt_blocks_misordered_(fdt, sizeof(struct fdt_reserve_entry),
34 fdt_size_dt_struct(fdt)))
36 if (fdt_version(fdt) > 17)
37 fdt_set_version(fdt, 17);
42 #define FDT_RW_PROBE(fdt) \
45 if ((err_ = fdt_rw_probe_(fdt)) != 0) \
49 static inline int fdt_data_size_(void *fdt)
51 return fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);
54 static int fdt_splice_(void *fdt, void *splicepoint, int oldlen, int newlen)
57 char *end = (char *)fdt + fdt_data_size_(fdt);
61 if ((p < (char *)fdt) || ((end - oldlen + newlen) < (char *)fdt))
63 if ((end - oldlen + newlen) > ((char *)fdt + fdt_totalsize(fdt)))
69 static int fdt_splice_mem_rsv_(void *fdt, struct fdt_reserve_entry *p,
74 err = fdt_splice_(fdt, p, oldn * sizeof(*p), newn * sizeof(*p));
77 fdt_set_off_dt_struct(fdt, fdt_off_dt_struct(fdt) + delta);
78 fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);
82 static int fdt_splice_struct_(void *fdt, void *p,
88 if ((err = fdt_splice_(fdt, p, oldlen, newlen)))
91 fdt_set_size_dt_struct(fdt, fdt_size_dt_struct(fdt) + delta);
92 fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);
97 static void fdt_del_last_string_(void *fdt, const char *s)
101 fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) - newlen);
104 static int fdt_splice_string_(void *fdt, int newlen)
106 void *p = (char *)fdt
107 + fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);
110 if ((err = fdt_splice_(fdt, p, 0, newlen)))
113 fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) + newlen);
117 static int fdt_find_add_string_(void *fdt, const char *s, int *allocated)
119 char *strtab = (char *)fdt + fdt_off_dt_strings(fdt);
127 p = fdt_find_string_(strtab, fdt_size_dt_strings(fdt), s);
132 new = strtab + fdt_size_dt_strings(fdt);
133 err = fdt_splice_string_(fdt, len);
143 int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size)
148 FDT_RW_PROBE(fdt);
150 re = fdt_mem_rsv_w_(fdt, fdt_num_mem_rsv(fdt));
151 err = fdt_splice_mem_rsv_(fdt, re, 0, 1);
160 int fdt_del_mem_rsv(void *fdt, int n)
162 struct fdt_reserve_entry *re = fdt_mem_rsv_w_(fdt, n);
164 FDT_RW_PROBE(fdt);
166 if (n >= fdt_num_mem_rsv(fdt))
169 return fdt_splice_mem_rsv_(fdt, re, 1, 0);
172 static int fdt_resize_property_(void *fdt, int nodeoffset, const char *name,
178 *prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
182 if ((err = fdt_splice_struct_(fdt, (*prop)->data, FDT_TAGALIGN(oldlen),
190 static int fdt_add_property_(void *fdt, int nodeoffset, const char *name,
199 if ((nextoffset = fdt_check_node_offset_(fdt, nodeoffset)) < 0)
202 namestroff = fdt_find_add_string_(fdt, name, &allocated);
206 *prop = fdt_offset_ptr_w_(fdt, nextoffset);
209 err = fdt_splice_struct_(fdt, *prop, 0, proplen);
212 fdt_del_last_string_(fdt, name);
222 int fdt_set_name(void *fdt, int nodeoffset, const char *name)
228 FDT_RW_PROBE(fdt);
230 namep = (char *)(uintptr_t)fdt_get_name(fdt, nodeoffset, &oldlen);
236 err = fdt_splice_struct_(fdt, namep, FDT_TAGALIGN(oldlen+1),
245 int fdt_setprop_placeholder(void *fdt, int nodeoffset, const char *name,
251 FDT_RW_PROBE(fdt);
253 err = fdt_resize_property_(fdt, nodeoffset, name, len, &prop);
255 err = fdt_add_property_(fdt, nodeoffset, name, len, &prop);
263 int fdt_setprop(void *fdt, int nodeoffset, const char *name,
269 err = fdt_setprop_placeholder(fdt, nodeoffset, name, len, &prop_data);
278 int fdt_appendprop(void *fdt, int nodeoffset, const char *name,
284 FDT_RW_PROBE(fdt);
286 prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
289 err = fdt_splice_struct_(fdt, prop->data,
297 err = fdt_add_property_(fdt, nodeoffset, name, len, &prop);
305 int fdt_delprop(void *fdt, int nodeoffset, const char *name)
310 FDT_RW_PROBE(fdt);
312 prop = fdt_get_property_w(fdt, nodeoffset, name, &len);
317 return fdt_splice_struct_(fdt, prop, proplen, 0);
320 int fdt_add_subnode_namelen(void *fdt, int parentoffset,
330 FDT_RW_PROBE(fdt);
332 offset = fdt_subnode_offset_namelen(fdt, parentoffset, name, namelen);
339 fdt_next_tag(fdt, parentoffset, &nextoffset); /* skip the BEGIN_NODE */
342 tag = fdt_next_tag(fdt, offset, &nextoffset);
345 nh = fdt_offset_ptr_w_(fdt, offset);
348 err = fdt_splice_struct_(fdt, nh, 0, nodelen);
361 int fdt_add_subnode(void *fdt, int parentoffset, const char *name)
363 return fdt_add_subnode_namelen(fdt, parentoffset, name, strlen(name));
366 int fdt_del_node(void *fdt, int nodeoffset)
370 FDT_RW_PROBE(fdt);
372 endoffset = fdt_node_end_offset_(fdt, nodeoffset);
376 return fdt_splice_struct_(fdt, fdt_offset_ptr_w_(fdt, nodeoffset),
402 int fdt_open_into(const void *fdt, void *buf, int bufsize)
407 const char *fdtstart = fdt;
408 const char *fdtend = fdtstart + fdt_totalsize(fdt);
411 FDT_RO_PROBE(fdt);
413 mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
416 if (fdt_version(fdt) >= 17) {
417 struct_size = fdt_size_dt_struct(fdt);
420 while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END)
426 if (!fdt_blocks_misordered_(fdt, mem_rsv_size, struct_size)) {
428 err = fdt_move(fdt, buf, bufsize);
439 + struct_size + fdt_size_dt_strings(fdt);
454 fdt_packblocks_(fdt, tmp, mem_rsv_size, struct_size);
461 fdt_set_boot_cpuid_phys(buf, fdt_boot_cpuid_phys(fdt));
466 int fdt_pack(void *fdt)
470 FDT_RW_PROBE(fdt);
472 mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
474 fdt_packblocks_(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt));
475 fdt_set_totalsize(fdt, fdt_data_size_(fdt));
Indexes created Mon Oct 20 20:10:13 GMT 2025