1 /*
2 * libfdt - Flat Device Tree manipulation
3 * Copyright (C) 2012 David Gibson, IBM Corporation.
4 *
5 * libfdt is dual licensed: you can use it either under the terms of
6 * the GPL, or the BSD license, at your option.
7 *
8 * a) This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of the
11 * License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public
19 * License along with this library; If not, see <http://www.gnu.org/licenses/>.
20 *
21 * Alternatively,
22 *
23 * b) Redistribution and use in source and binary forms, with or
24 * without modification, are permitted provided that the following
25 * conditions are met:
26 *
27 * 1. Redistributions of source code must retain the above
28 * copyright notice, this list of conditions and the following
29 * disclaimer.
30 * 2. Redistributions in binary form must reproduce the above
31 * copyright notice, this list of conditions and the following
32 * disclaimer in the documentation and/or other materials
33 * provided with the distribution.
34 *
35 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
36 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
37 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
38 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
39 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
40 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
45 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
46 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
47 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
48 */
49 #include "libfdt_env.h"
50
51 #include <fdt.h>
52 #include <libfdt.h>
53
54 #include "libfdt_internal.h"
55
fdt_create_empty_tree(void * buf,int bufsize)56 int fdt_create_empty_tree(void *buf, int bufsize)
57 {
58 int err;
59
60 err = fdt_create(buf, bufsize);
61 if (err)
62 return err;
63
64 err = fdt_finish_reservemap(buf);
65 if (err)
66 return err;
67
68 err = fdt_begin_node(buf, "");
69 if (err)
70 return err;
71
72 err = fdt_end_node(buf);
73 if (err)
74 return err;
75
76 err = fdt_finish(buf);
77 if (err)
78 return err;
79
80 return fdt_open_into(buf, buf, bufsize);
81 }
82
83