fdt_empty_tree.c revision 9537 
113481Sgiacomo.travaglini@arm.com/*
213481Sgiacomo.travaglini@arm.com * libfdt - Flat Device Tree manipulation
313481Sgiacomo.travaglini@arm.com * Copyright (C) 2012 David Gibson, IBM Corporation.
413481Sgiacomo.travaglini@arm.com *
513481Sgiacomo.travaglini@arm.com *     Redistribution and use in source and binary forms, with or
613481Sgiacomo.travaglini@arm.com *     without modification, are permitted provided that the following
713481Sgiacomo.travaglini@arm.com *     conditions are met:
813481Sgiacomo.travaglini@arm.com *
913481Sgiacomo.travaglini@arm.com *     1. Redistributions of source code must retain the above
1013481Sgiacomo.travaglini@arm.com *        copyright notice, this list of conditions and the following
1113481Sgiacomo.travaglini@arm.com *        disclaimer.
1213481Sgiacomo.travaglini@arm.com *     2. Redistributions in binary form must reproduce the above
1313481Sgiacomo.travaglini@arm.com *        copyright notice, this list of conditions and the following
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1513481Sgiacomo.travaglini@arm.com *        provided with the distribution.
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3013481Sgiacomo.travaglini@arm.com */
3113481Sgiacomo.travaglini@arm.com#include <fdt.h>
3213481Sgiacomo.travaglini@arm.com#include <libfdt.h>
3313481Sgiacomo.travaglini@arm.com
3413481Sgiacomo.travaglini@arm.com#include "libfdt_env.h"
3513481Sgiacomo.travaglini@arm.com#include "libfdt_internal.h"
36
37int fdt_create_empty_tree(void *buf, int bufsize)
38{
39        int err;
40
41        err = fdt_create(buf, bufsize);
42        if (err)
43                return err;
44
45        err = fdt_finish_reservemap(buf);
46        if (err)
47                return err;
48
49        err = fdt_begin_node(buf, "");
50        if (err)
51                return err;
52
53        err =  fdt_end_node(buf);
54        if (err)
55                return err;
56
57        err = fdt_finish(buf);
58        if (err)
59                return err;
60
61        return fdt_open_into(buf, buf, bufsize);
62}
63
64