-/*
- * libfdt - Flat Device Tree manipulation
- * Copyright (C) 2006 David Gibson, IBM Corporation.
- *
- * libfdt is dual licensed: you can use it either under the terms of
- * the GPL, or the BSD license, at your option.
- *
- * a) This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
- * MA 02110-1301 USA
- *
- * Alternatively,
- *
- * b) Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * 1. Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the following
- * disclaimer.
- * 2. Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials
- * provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
- * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-#include "libfdt_env.h"
-
-#include <fdt.h>
-#include <libfdt.h>
-
-#include "libfdt_internal.h"
-
-static int _fdt_sw_check_header(void *fdt)
-{
- if (fdt_magic(fdt) != FDT_SW_MAGIC)
- return -FDT_ERR_BADMAGIC;
- /* FIXME: should check more details about the header state */
- return 0;
-}
-
-#define FDT_SW_CHECK_HEADER(fdt) \
- { \
- int err; \
- if ((err = _fdt_sw_check_header(fdt)) != 0) \
- return err; \
- }
-
-static void *_fdt_grab_space(void *fdt, size_t len)
-{
- int offset = fdt_size_dt_struct(fdt);
- int spaceleft;
-
- spaceleft = fdt_totalsize(fdt) - fdt_off_dt_struct(fdt)
- - fdt_size_dt_strings(fdt);
-
- if ((offset + len < offset) || (offset + len > spaceleft))
- return NULL;
-
- fdt_set_size_dt_struct(fdt, offset + len);
- return _fdt_offset_ptr_w(fdt, offset);
-}
-
-int fdt_create(void *buf, int bufsize)
-{
- void *fdt = buf;
-
- if (bufsize < sizeof(struct fdt_header))
- return -FDT_ERR_NOSPACE;
-
- memset(buf, 0, bufsize);
-
- fdt_set_magic(fdt, FDT_SW_MAGIC);
- fdt_set_version(fdt, FDT_LAST_SUPPORTED_VERSION);
- fdt_set_last_comp_version(fdt, FDT_FIRST_SUPPORTED_VERSION);
- fdt_set_totalsize(fdt, bufsize);
-
- fdt_set_off_mem_rsvmap(fdt, FDT_ALIGN(sizeof(struct fdt_header),
- sizeof(struct fdt_reserve_entry)));
- fdt_set_off_dt_struct(fdt, fdt_off_mem_rsvmap(fdt));
- fdt_set_off_dt_strings(fdt, bufsize);
-
- return 0;
-}
-
-int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size)
-{
- struct fdt_reserve_entry *re;
- int offset;
-
- FDT_SW_CHECK_HEADER(fdt);
-
- if (fdt_size_dt_struct(fdt))
- return -FDT_ERR_BADSTATE;
-
- offset = fdt_off_dt_struct(fdt);
- if ((offset + sizeof(*re)) > fdt_totalsize(fdt))
- return -FDT_ERR_NOSPACE;
-
- re = (struct fdt_reserve_entry *)((char *)fdt + offset);
- re->address = cpu_to_fdt64(addr);
- re->size = cpu_to_fdt64(size);
-
- fdt_set_off_dt_struct(fdt, offset + sizeof(*re));
-
- return 0;
-}
-
-int fdt_finish_reservemap(void *fdt)
-{
- return fdt_add_reservemap_entry(fdt, 0, 0);
-}
-
-int fdt_begin_node(void *fdt, const char *name)
-{
- struct fdt_node_header *nh;
- int namelen = strlen(name) + 1;
-
- FDT_SW_CHECK_HEADER(fdt);
-
- nh = _fdt_grab_space(fdt, sizeof(*nh) + FDT_TAGALIGN(namelen));
- if (! nh)
- return -FDT_ERR_NOSPACE;
-
- nh->tag = cpu_to_fdt32(FDT_BEGIN_NODE);
- memcpy(nh->name, name, namelen);
- return 0;
-}
-
-int fdt_end_node(void *fdt)
-{
- uint32_t *en;
-
- FDT_SW_CHECK_HEADER(fdt);
-
- en = _fdt_grab_space(fdt, FDT_TAGSIZE);
- if (! en)
- return -FDT_ERR_NOSPACE;
-
- *en = cpu_to_fdt32(FDT_END_NODE);
- return 0;
-}
-
-static int _fdt_find_add_string(void *fdt, const char *s)
-{
- char *strtab = (char *)fdt + fdt_totalsize(fdt);
- const char *p;
- int strtabsize = fdt_size_dt_strings(fdt);
- int len = strlen(s) + 1;
- int struct_top, offset;
-
- p = _fdt_find_string(strtab - strtabsize, strtabsize, s);
- if (p)
- return p - strtab;
-
- /* Add it */
- offset = -strtabsize - len;
- struct_top = fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt);
- if (fdt_totalsize(fdt) + offset < struct_top)
- return 0; /* no more room :( */
-
- memcpy(strtab + offset, s, len);
- fdt_set_size_dt_strings(fdt, strtabsize + len);
- return offset;
-}
-
-int fdt_property(void *fdt, const char *name, const void *val, int len)
-{
- struct fdt_property *prop;
- int nameoff;
-
- FDT_SW_CHECK_HEADER(fdt);
-
- nameoff = _fdt_find_add_string(fdt, name);
- if (nameoff == 0)
- return -FDT_ERR_NOSPACE;
-
- prop = _fdt_grab_space(fdt, sizeof(*prop) + FDT_TAGALIGN(len));
- if (! prop)
- return -FDT_ERR_NOSPACE;
-
- prop->tag = cpu_to_fdt32(FDT_PROP);
- prop->nameoff = cpu_to_fdt32(nameoff);
- prop->len = cpu_to_fdt32(len);
- memcpy(prop->data, val, len);
- return 0;
-}
-
-int fdt_finish(void *fdt)
-{
- char *p = (char *)fdt;
- uint32_t *end;
- int oldstroffset, newstroffset;
- uint32_t tag;
- int offset, nextoffset;
-
- FDT_SW_CHECK_HEADER(fdt);
-
- /* Add terminator */
- end = _fdt_grab_space(fdt, sizeof(*end));
- if (! end)
- return -FDT_ERR_NOSPACE;
- *end = cpu_to_fdt32(FDT_END);
-
- /* Relocate the string table */
- oldstroffset = fdt_totalsize(fdt) - fdt_size_dt_strings(fdt);
- newstroffset = fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt);
- memmove(p + newstroffset, p + oldstroffset, fdt_size_dt_strings(fdt));
- fdt_set_off_dt_strings(fdt, newstroffset);
-
- /* Walk the structure, correcting string offsets */
- offset = 0;
- while ((tag = fdt_next_tag(fdt, offset, &nextoffset)) != FDT_END) {
- if (tag == FDT_PROP) {
- struct fdt_property *prop =
- _fdt_offset_ptr_w(fdt, offset);
- int nameoff;
-
- nameoff = fdt32_to_cpu(prop->nameoff);
- nameoff += fdt_size_dt_strings(fdt);
- prop->nameoff = cpu_to_fdt32(nameoff);
- }
- offset = nextoffset;
- }
- if (nextoffset < 0)
- return nextoffset;
-
- /* Finally, adjust the header */
- fdt_set_totalsize(fdt, newstroffset + fdt_size_dt_strings(fdt));
- fdt_set_magic(fdt, FDT_MAGIC);
- return 0;
-}
+/*\r
+ * libfdt - Flat Device Tree manipulation\r
+ * Copyright (C) 2006 David Gibson, IBM Corporation.\r
+ *\r
+ * libfdt is dual licensed: you can use it either under the terms of\r
+ * the GPL, or the BSD license, at your option.\r
+ *\r
+ * a) This library is free software; you can redistribute it and/or\r
+ * modify it under the terms of the GNU General Public License as\r
+ * published by the Free Software Foundation; either version 2 of the\r
+ * License, or (at your option) any later version.\r
+ *\r
+ * This library is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public\r
+ * License along with this library; if not, write to the Free\r
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,\r
+ * MA 02110-1301 USA\r
+ *\r
+ * Alternatively,\r
+ *\r
+ * b) Redistribution and use in source and binary forms, with or\r
+ * without modification, are permitted provided that the following\r
+ * conditions are met:\r
+ *\r
+ * 1. Redistributions of source code must retain the above\r
+ * copyright notice, this list of conditions and the following\r
+ * disclaimer.\r
+ * 2. Redistributions in binary form must reproduce the above\r
+ * copyright notice, this list of conditions and the following\r
+ * disclaimer in the documentation and/or other materials\r
+ * provided with the distribution.\r
+ *\r
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND\r
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,\r
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF\r
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\r
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR\r
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\r
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\r
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\r
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR\r
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,\r
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\r
+ */\r
+#include "libfdt_env.h"\r
+\r
+#include <fdt.h>\r
+#include <libfdt.h>\r
+\r
+#include "libfdt_internal.h"\r
+\r
+static int _fdt_sw_check_header(void *fdt)\r
+{\r
+ if (fdt_magic(fdt) != FDT_SW_MAGIC)\r
+ return -FDT_ERR_BADMAGIC;\r
+ /* FIXME: should check more details about the header state */\r
+ return 0;\r
+}\r
+\r
+#define FDT_SW_CHECK_HEADER(fdt) \\r
+ { \\r
+ int err; \\r
+ if ((err = _fdt_sw_check_header(fdt)) != 0) \\r
+ return err; \\r
+ }\r
+\r
+static void *_fdt_grab_space(void *fdt, size_t len)\r
+{\r
+ int offset = fdt_size_dt_struct(fdt);\r
+ int spaceleft;\r
+\r
+ spaceleft = fdt_totalsize(fdt) - fdt_off_dt_struct(fdt)\r
+ - fdt_size_dt_strings(fdt);\r
+\r
+ if ((offset + len < offset) || (offset + len > spaceleft))\r
+ return NULL;\r
+\r
+ fdt_set_size_dt_struct(fdt, offset + len);\r
+ return _fdt_offset_ptr_w(fdt, offset);\r
+}\r
+\r
+int fdt_create(void *buf, int bufsize)\r
+{\r
+ void *fdt = buf;\r
+\r
+ if (bufsize < sizeof(struct fdt_header))\r
+ return -FDT_ERR_NOSPACE;\r
+\r
+ memset(buf, 0, bufsize);\r
+\r
+ fdt_set_magic(fdt, FDT_SW_MAGIC);\r
+ fdt_set_version(fdt, FDT_LAST_SUPPORTED_VERSION);\r
+ fdt_set_last_comp_version(fdt, FDT_FIRST_SUPPORTED_VERSION);\r
+ fdt_set_totalsize(fdt, bufsize);\r
+\r
+ fdt_set_off_mem_rsvmap(fdt, FDT_ALIGN(sizeof(struct fdt_header),\r
+ sizeof(struct fdt_reserve_entry)));\r
+ fdt_set_off_dt_struct(fdt, fdt_off_mem_rsvmap(fdt));\r
+ fdt_set_off_dt_strings(fdt, bufsize);\r
+\r
+ return 0;\r
+}\r
+\r
+int fdt_add_reservemap_entry(void *fdt, uint64_t addr, uint64_t size)\r
+{\r
+ struct fdt_reserve_entry *re;\r
+ int offset;\r
+\r
+ FDT_SW_CHECK_HEADER(fdt);\r
+\r
+ if (fdt_size_dt_struct(fdt))\r
+ return -FDT_ERR_BADSTATE;\r
+\r
+ offset = fdt_off_dt_struct(fdt);\r
+ if ((offset + sizeof(*re)) > fdt_totalsize(fdt))\r
+ return -FDT_ERR_NOSPACE;\r
+\r
+ re = (struct fdt_reserve_entry *)((char *)fdt + offset);\r
+ re->address = cpu_to_fdt64(addr);\r
+ re->size = cpu_to_fdt64(size);\r
+\r
+ fdt_set_off_dt_struct(fdt, offset + sizeof(*re));\r
+\r
+ return 0;\r
+}\r
+\r
+int fdt_finish_reservemap(void *fdt)\r
+{\r
+ return fdt_add_reservemap_entry(fdt, 0, 0);\r
+}\r
+\r
+int fdt_begin_node(void *fdt, const char *name)\r
+{\r
+ struct fdt_node_header *nh;\r
+ int namelen = strlen(name) + 1;\r
+\r
+ FDT_SW_CHECK_HEADER(fdt);\r
+\r
+ nh = _fdt_grab_space(fdt, sizeof(*nh) + FDT_TAGALIGN(namelen));\r
+ if (! nh)\r
+ return -FDT_ERR_NOSPACE;\r
+\r
+ nh->tag = cpu_to_fdt32(FDT_BEGIN_NODE);\r
+ memcpy(nh->name, name, namelen);\r
+ return 0;\r
+}\r
+\r
+int fdt_end_node(void *fdt)\r
+{\r
+ uint32_t *en;\r
+\r
+ FDT_SW_CHECK_HEADER(fdt);\r
+\r
+ en = _fdt_grab_space(fdt, FDT_TAGSIZE);\r
+ if (! en)\r
+ return -FDT_ERR_NOSPACE;\r
+\r
+ *en = cpu_to_fdt32(FDT_END_NODE);\r
+ return 0;\r
+}\r
+\r
+static int _fdt_find_add_string(void *fdt, const char *s)\r
+{\r
+ char *strtab = (char *)fdt + fdt_totalsize(fdt);\r
+ const char *p;\r
+ int strtabsize = fdt_size_dt_strings(fdt);\r
+ int len = strlen(s) + 1;\r
+ int struct_top, offset;\r
+\r
+ p = _fdt_find_string(strtab - strtabsize, strtabsize, s);\r
+ if (p)\r
+ return p - strtab;\r
+\r
+ /* Add it */\r
+ offset = -strtabsize - len;\r
+ struct_top = fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt);\r
+ if (fdt_totalsize(fdt) + offset < struct_top)\r
+ return 0; /* no more room :( */\r
+\r
+ memcpy(strtab + offset, s, len);\r
+ fdt_set_size_dt_strings(fdt, strtabsize + len);\r
+ return offset;\r
+}\r
+\r
+int fdt_property(void *fdt, const char *name, const void *val, int len)\r
+{\r
+ struct fdt_property *prop;\r
+ int nameoff;\r
+\r
+ FDT_SW_CHECK_HEADER(fdt);\r
+\r
+ nameoff = _fdt_find_add_string(fdt, name);\r
+ if (nameoff == 0)\r
+ return -FDT_ERR_NOSPACE;\r
+\r
+ prop = _fdt_grab_space(fdt, sizeof(*prop) + FDT_TAGALIGN(len));\r
+ if (! prop)\r
+ return -FDT_ERR_NOSPACE;\r
+\r
+ prop->tag = cpu_to_fdt32(FDT_PROP);\r
+ prop->nameoff = cpu_to_fdt32(nameoff);\r
+ prop->len = cpu_to_fdt32(len);\r
+ memcpy(prop->data, val, len);\r
+ return 0;\r
+}\r
+\r
+int fdt_finish(void *fdt)\r
+{\r
+ char *p = (char *)fdt;\r
+ uint32_t *end;\r
+ int oldstroffset, newstroffset;\r
+ uint32_t tag;\r
+ int offset, nextoffset;\r
+\r
+ FDT_SW_CHECK_HEADER(fdt);\r
+\r
+ /* Add terminator */\r
+ end = _fdt_grab_space(fdt, sizeof(*end));\r
+ if (! end)\r
+ return -FDT_ERR_NOSPACE;\r
+ *end = cpu_to_fdt32(FDT_END);\r
+\r
+ /* Relocate the string table */\r
+ oldstroffset = fdt_totalsize(fdt) - fdt_size_dt_strings(fdt);\r
+ newstroffset = fdt_off_dt_struct(fdt) + fdt_size_dt_struct(fdt);\r
+ memmove(p + newstroffset, p + oldstroffset, fdt_size_dt_strings(fdt));\r
+ fdt_set_off_dt_strings(fdt, newstroffset);\r
+\r
+ /* Walk the structure, correcting string offsets */\r
+ offset = 0;\r
+ while ((tag = fdt_next_tag(fdt, offset, &nextoffset)) != FDT_END) {\r
+ if (tag == FDT_PROP) {\r
+ struct fdt_property *prop =\r
+ _fdt_offset_ptr_w(fdt, offset);\r
+ int nameoff;\r
+\r
+ nameoff = fdt32_to_cpu(prop->nameoff);\r
+ nameoff += fdt_size_dt_strings(fdt);\r
+ prop->nameoff = cpu_to_fdt32(nameoff);\r
+ }\r
+ offset = nextoffset;\r
+ }\r
+ if (nextoffset < 0)\r
+ return nextoffset;\r
+\r
+ /* Finally, adjust the header */\r
+ fdt_set_totalsize(fdt, newstroffset + fdt_size_dt_strings(fdt));\r
+ fdt_set_magic(fdt, FDT_MAGIC);\r
+ return 0;\r
+}\r
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