Lines Matching defs:fdt
8 #include <fdt.h>
13 static int fdt_blocks_misordered_(const void *fdt,
16 return (fdt_off_mem_rsvmap(fdt) < FDT_ALIGN(sizeof(struct fdt_header), 8))
17 || (fdt_off_dt_struct(fdt) <
18 (fdt_off_mem_rsvmap(fdt) + mem_rsv_size))
19 || (fdt_off_dt_strings(fdt) <
20 (fdt_off_dt_struct(fdt) + struct_size))
21 || (fdt_totalsize(fdt) <
22 (fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt)));
25 static int fdt_rw_probe_(void *fdt)
29 FDT_RO_PROBE(fdt);
31 if (!can_assume(LATEST) && fdt_version(fdt) < 17)
33 if (fdt_blocks_misordered_(fdt, sizeof(struct fdt_reserve_entry),
34 fdt_size_dt_struct(fdt)))
36 if (!can_assume(LATEST) && 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 unsigned 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 unsigned int dsize = fdt_data_size_(fdt);
58 size_t soff = p - (char *)fdt;
62 if ((p < (char *)fdt) || (dsize + newlen < (unsigned)oldlen))
64 if (dsize - oldlen + newlen > fdt_totalsize(fdt))
66 memmove(p + newlen, p + oldlen, ((char *)fdt + dsize) - (p + oldlen));
70 static int fdt_splice_mem_rsv_(void *fdt, struct fdt_reserve_entry *p,
75 err = fdt_splice_(fdt, p, oldn * sizeof(*p), newn * sizeof(*p));
78 fdt_set_off_dt_struct(fdt, fdt_off_dt_struct(fdt) + delta);
79 fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);
83 static int fdt_splice_struct_(void *fdt, void *p,
89 if ((err = fdt_splice_(fdt, p, oldlen, newlen)))
92 fdt_set_size_dt_struct(fdt, fdt_size_dt_struct(fdt) + delta);
93 fdt_set_off_dt_strings(fdt, fdt_off_dt_strings(fdt) + delta);
98 static void fdt_del_last_string_(void *fdt, const char *s)
102 fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) - newlen);
105 static int fdt_splice_string_(void *fdt, int newlen)
107 void *p = (char *)fdt
108 + fdt_off_dt_strings(fdt) + fdt_size_dt_strings(fdt);
111 if ((err = fdt_splice_(fdt, p, 0, newlen)))
114 fdt_set_size_dt_strings(fdt, fdt_size_dt_strings(fdt) + newlen);
121 * @fdt: pointer to the device tree to check/adjust
127 static int fdt_find_add_string_(void *fdt, const char *s, int *allocated)
129 char *strtab = (char *)fdt + fdt_off_dt_strings(fdt);
138 p = fdt_find_string_(strtab, fdt_size_dt_strings(fdt), s);
143 new = strtab + fdt_size_dt_strings(fdt);
144 err = fdt_splice_string_(fdt, len);
155 int fdt_add_mem_rsv(void *fdt, uint64_t address, uint64_t size)
160 FDT_RW_PROBE(fdt);
162 re = fdt_mem_rsv_w_(fdt, fdt_num_mem_rsv(fdt));
163 err = fdt_splice_mem_rsv_(fdt, re, 0, 1);
172 int fdt_del_mem_rsv(void *fdt, int n)
174 struct fdt_reserve_entry *re = fdt_mem_rsv_w_(fdt, n);
176 FDT_RW_PROBE(fdt);
178 if (n >= fdt_num_mem_rsv(fdt))
181 return fdt_splice_mem_rsv_(fdt, re, 1, 0);
184 static int fdt_resize_property_(void *fdt, int nodeoffset, const char *name,
190 *prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
194 if ((err = fdt_splice_struct_(fdt, (*prop)->data, FDT_TAGALIGN(oldlen),
202 static int fdt_add_property_(void *fdt, int nodeoffset, const char *name,
211 if ((nextoffset = fdt_check_node_offset_(fdt, nodeoffset)) < 0)
214 namestroff = fdt_find_add_string_(fdt, name, &allocated);
218 *prop = fdt_offset_ptr_w_(fdt, nextoffset);
221 err = fdt_splice_struct_(fdt, *prop, 0, proplen);
225 fdt_del_last_string_(fdt, name);
235 int fdt_set_name(void *fdt, int nodeoffset, const char *name)
241 FDT_RW_PROBE(fdt);
243 namep = (char *)(uintptr_t)fdt_get_name(fdt, nodeoffset, &oldlen);
249 err = fdt_splice_struct_(fdt, namep, FDT_TAGALIGN(oldlen+1),
258 int fdt_setprop_placeholder(void *fdt, int nodeoffset, const char *name,
264 FDT_RW_PROBE(fdt);
266 err = fdt_resize_property_(fdt, nodeoffset, name, len, &prop);
268 err = fdt_add_property_(fdt, nodeoffset, name, len, &prop);
276 int fdt_setprop(void *fdt, int nodeoffset, const char *name,
282 err = fdt_setprop_placeholder(fdt, nodeoffset, name, len, &prop_data);
291 int fdt_appendprop(void *fdt, int nodeoffset, const char *name,
297 FDT_RW_PROBE(fdt);
299 prop = fdt_get_property_w(fdt, nodeoffset, name, &oldlen);
302 err = fdt_splice_struct_(fdt, prop->data,
310 err = fdt_add_property_(fdt, nodeoffset, name, len, &prop);
318 int fdt_delprop(void *fdt, int nodeoffset, const char *name)
323 FDT_RW_PROBE(fdt);
325 prop = fdt_get_property_w(fdt, nodeoffset, name, &len);
330 return fdt_splice_struct_(fdt, prop, proplen, 0);
333 int fdt_add_subnode_namelen(void *fdt, int parentoffset,
343 FDT_RW_PROBE(fdt);
345 offset = fdt_subnode_offset_namelen(fdt, parentoffset, name, namelen);
352 tag = fdt_next_tag(fdt, parentoffset, &nextoffset);
358 tag = fdt_next_tag(fdt, offset, &nextoffset);
361 nh = fdt_offset_ptr_w_(fdt, offset);
364 err = fdt_splice_struct_(fdt, nh, 0, nodelen);
377 int fdt_add_subnode(void *fdt, int parentoffset, const char *name)
379 return fdt_add_subnode_namelen(fdt, parentoffset, name, strlen(name));
382 int fdt_del_node(void *fdt, int nodeoffset)
386 FDT_RW_PROBE(fdt);
388 endoffset = fdt_node_end_offset_(fdt, nodeoffset);
392 return fdt_splice_struct_(fdt, fdt_offset_ptr_w_(fdt, nodeoffset),
419 int fdt_open_into(const void *fdt, void *buf, int bufsize)
424 const char *fdtstart = fdt;
425 const char *fdtend = fdtstart + fdt_totalsize(fdt);
428 FDT_RO_PROBE(fdt);
430 mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
433 if (can_assume(LATEST) || fdt_version(fdt) >= 17) {
434 struct_size = fdt_size_dt_struct(fdt);
435 } else if (fdt_version(fdt) == 16) {
437 while (fdt_next_tag(fdt, struct_size, &struct_size) != FDT_END)
446 !fdt_blocks_misordered_(fdt, mem_rsv_size, struct_size)) {
448 err = fdt_move(fdt, buf, bufsize);
459 + struct_size + fdt_size_dt_strings(fdt);
474 fdt_packblocks_(fdt, tmp, mem_rsv_size, struct_size,
475 fdt_size_dt_strings(fdt));
482 fdt_set_boot_cpuid_phys(buf, fdt_boot_cpuid_phys(fdt));
487 int fdt_pack(void *fdt)
491 FDT_RW_PROBE(fdt);
493 mem_rsv_size = (fdt_num_mem_rsv(fdt)+1)
495 fdt_packblocks_(fdt, fdt, mem_rsv_size, fdt_size_dt_struct(fdt),
496 fdt_size_dt_strings(fdt));
497 fdt_set_totalsize(fdt, fdt_data_size_(fdt));