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Gerald Van Baren6679f922007-04-06 14:17:14 -04001/*
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
Gerald Van Baren7cd5da02007-03-31 11:59:59 -040021#ifndef _LIBFDT_ENV_H
22#define _LIBFDT_ENV_H
23
Mike Frysinger37566092009-07-02 19:23:25 -040024#include "compiler.h"
Kim Phillips25aca0f2013-01-16 13:59:34 +000025#include "linux/types.h"
Gerald Van Baren7cd5da02007-03-31 11:59:59 -040026
Kim Phillipse489b9c2008-06-10 11:06:17 -050027extern struct fdt_header *working_fdt; /* Pointer to the working fdt */
Gerald Van Barenfa3a74c2007-03-31 12:05:39 -040028
Kim Phillips25aca0f2013-01-16 13:59:34 +000029typedef __be16 fdt16_t;
30typedef __be32 fdt32_t;
31typedef __be64 fdt64_t;
32
Mike Frysinger37566092009-07-02 19:23:25 -040033#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)
David Gibsonef4e8ce2008-07-07 10:10:48 +100037
Gerald Van Barenbbd0f7e2013-05-04 22:17:49 -040038/* adding a ramdisk needs 0x44 bytes in version 2008.10 */
39#define FDT_RAMDISK_OVERHEAD 0x80
40
Gerald Van Baren7cd5da02007-03-31 11:59:59 -040041#endif /* _LIBFDT_ENV_H */