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  * SPDX-License-Identifier:     LGPL-2.1+
   7  */
   8
   9 #ifndef _LIBFDT_ENV_H
  10 #define _LIBFDT_ENV_H
  11
  12 #include "compiler.h"
  13 #include "linux/types.h"
  14
  15 extern struct fdt_header *working_fdt;  /* Pointer to the working fdt */
  16
  17 typedef __be16 fdt16_t;
  18 typedef __be32 fdt32_t;
  19 typedef __be64 fdt64_t;
  20
  21 #define fdt32_to_cpu(x)         be32_to_cpu(x)
  22 #define cpu_to_fdt32(x)         cpu_to_be32(x)
  23 #define fdt64_to_cpu(x)         be64_to_cpu(x)
  24 #define cpu_to_fdt64(x)         cpu_to_be64(x)
  25
  26 /* adding a ramdisk needs 0x44 bytes in version 2008.10 */
  27 #define FDT_RAMDISK_OVERHEAD    0x80
  28
  29 #endif /* _LIBFDT_ENV_H */