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 15extern struct fdt_header *working_fdt; /* Pointer to the working fdt */ 16 17typedef __be16 fdt16_t; 18typedef __be32 fdt32_t; 19typedef __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 */ 30