scripts/dtc/libfdt/fdt_empty_tree.c

   1 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
   2 /*
   3  * libfdt - Flat Device Tree manipulation
   4  * Copyright (C) 2012 David Gibson, IBM Corporation.
   5  */
   6 #include "libfdt_env.h"
   7
   8 #include <fdt.h>
   9 #include <libfdt.h>
  10
  11 #include "libfdt_internal.h"
  12
  13 int fdt_create_empty_tree(void *buf, int bufsize)
  14 {
  15         int err;
  16
  17         err = fdt_create(buf, bufsize);
  18         if (err)
  19                 return err;
  20
  21         err = fdt_finish_reservemap(buf);
  22         if (err)
  23                 return err;
  24
  25         err = fdt_begin_node(buf, "");
  26         if (err)
  27                 return err;
  28
  29         err =  fdt_end_node(buf);
  30         if (err)
  31                 return err;
  32
  33         err = fdt_finish(buf);
  34         if (err)
  35                 return err;
  36
  37         return fdt_open_into(buf, buf, bufsize);
  38 }