include/libfdt_env.h

   1 /*
   2  * libfdt - Flat Device Tree manipulation (build/run environment adaptation)
   3  * Copyright (C) 2007 Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com
   4  * Original version written by David Gibson, IBM Corporation.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public License
   8  * as published by the Free Software Foundation; either version 2.1 of
   9  * the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef _LIBFDT_ENV_H
  22 #define _LIBFDT_ENV_H
  23
  24 #include "compiler.h"
  25 #include "linux/types.h"
  26
  27 extern struct fdt_header *working_fdt;  /* Pointer to the working fdt */
  28
  29 typedef __be16 fdt16_t;
  30 typedef __be32 fdt32_t;
  31 typedef __be64 fdt64_t;
  32
  33 #define fdt32_to_cpu(x)         be32_to_cpu(x)
  34 #define cpu_to_fdt32(x)         cpu_to_be32(x)
  35 #define fdt64_to_cpu(x)         be64_to_cpu(x)
  36 #define cpu_to_fdt64(x)         cpu_to_be64(x)
  37
  38 /* adding a ramdisk needs 0x44 bytes in version 2008.10 */
  39 #define FDT_RAMDISK_OVERHEAD    0x80
  40
  41 #endif /* _LIBFDT_ENV_H */