Lines Matching refs:fdt
53 #include <fdt.h>
58 static int _fdt_sw_check_header(void *fdt)
60 if (fdt_magic(fdt) != FDT_SW_MAGIC)
66 #define FDT_SW_CHECK_HEADER(fdt) \
69 if ((err = _fdt_sw_check_header(fdt)) != 0) \
73 static void *_fdt_grab_space(void *fdt, size_t len)
75 int offset = fdt_size_dt_struct(fdt);
78 spaceleft = fdt_totalsize(fdt) - fdt_off_dt_struct(fdt)
79 - fdt_size_dt_strings(fdt);
84 fdt_set_size_dt_struct(fdt, offset + len);
85 return _fdt_offset_ptr_w(fdt, offset);
90 void *fdt = buf;
97 fdt_set_magic(fdt, FDT_SW_MAGIC);
98 fdt_set_version(fdt, FDT_LAST_SUPPORTED_VERSION);
99 fdt_set_last_comp_version(fdt, FDT_FIRST_SUPPORTED_VERSION);
100 fdt_set_totalsize(fdt, bufsize);
102 fdt_set_off_mem_rsvmap(fdt, FDT_ALIGN(sizeof(struct fdt_header),
104 fdt_set_off_dt_struct(fdt, fdt_off_mem_rsvmap(fdt));
105 fdt_set_off_dt_strings(fdt, bufsize);
110 int fdt_resize(void *fdt, void *buf, int bufsize)
115 FDT_SW_CHECK_HEADER(fdt);
117 headsize = fdt_off_dt_struct(fdt);
118 tailsize = fdt_size_dt_strings(fdt);
123 oldtail = (char *)fdt + fdt_totalsize(fdt) - tailsize;
128 if (buf <= fdt) {
129 memmove(buf, fdt, headsize);
133 memmove(buf, fdt, headsize);
142 int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size)
147 FDT_SW_CHECK_HEADER(fdt);
149 if (fdt_size_dt_struct(fdt))
152 offset = fdt_off_dt_struct(fdt);
153 if ((offset + sizeof(*re)) > fdt_totalsize(fdt))
156 re = (struct fdt_reserve_entry *)((char *)fdt + offset);
160 fdt_set_off_dt_struct(fdt, offset + sizeof(*re));
165 int fdt_finish_reservemap(void *fdt)
167 return fdt_add_reservemap_entry(fdt, 0, 0);
170 int fdt_begin_node(void *fdt, const char *name)
175 FDT_SW_CHECK_HEADER(fdt);
177 nh = _fdt_grab_space(fdt, sizeof(*nh) + FDT_TAGALIGN(namelen));
186 int fdt_end_node(void *fdt)
190 FDT_SW_CHECK_HEADER(fdt);
192 en = _fdt_grab_space(fdt, FDT_TAGSIZE);
200 static int _fdt_find_add_string(void *fdt, const char *s)
202 char *strtab = (char *)fdt + fdt_totalsize(fdt);
204 int strtabsize = fdt_size_dt_strings(fdt);
214 struct_top = fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt);
215 if (fdt_totalsize(fdt) + offset < struct_top)
219 fdt_set_size_dt_strings(fdt, strtabsize + len);
223 int fdt_property(void *fdt, const char *name, const void *val, int len)
228 FDT_SW_CHECK_HEADER(fdt);
230 nameoff = _fdt_find_add_string(fdt, name);
234 prop = _fdt_grab_space(fdt, sizeof(*prop) + FDT_TAGALIGN(len));
245 int fdt_finish(void *fdt)
247 char *p = (char *)fdt;
253 FDT_SW_CHECK_HEADER(fdt);
256 end = _fdt_grab_space(fdt, sizeof(*end));
262 oldstroffset = fdt_totalsize(fdt) - fdt_size_dt_strings(fdt);
263 newstroffset = fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt);
264 memmove(p + newstroffset, p + oldstroffset, fdt_size_dt_strings(fdt));
265 fdt_set_off_dt_strings(fdt, newstroffset);
269 while ((tag = fdt_next_tag(fdt, offset, &nextoffset)) != FDT_END) {
272 _fdt_offset_ptr_w(fdt, offset);
276 nameoff += fdt_size_dt_strings(fdt);
285 fdt_set_totalsize(fdt, newstroffset + fdt_size_dt_strings(fdt));
286 fdt_set_magic(fdt, FDT_MAGIC);
