blob: 9a79fe85ddaf092904cb1c1a421a98fee1dcf696 [file] [log] [blame]
#ifndef _LIBFDT_INTERNAL_H
#define _LIBFDT_INTERNAL_H
/*
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2006 David Gibson, IBM Corporation.
* SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause
*/
#include <fdt.h>
#define FDT_ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
#define FDT_TAGALIGN(x) (FDT_ALIGN((x), FDT_TAGSIZE))
#define FDT_CHECK_HEADER(fdt) \
{ \
int __err; \
if ((__err = fdt_check_header(fdt)) != 0) \
return __err; \
}
int _fdt_check_node_offset(const void *fdt, int offset);
int _fdt_check_prop_offset(const void *fdt, int offset);
const char *_fdt_find_string(const char *strtab, int tabsize, const char *s);
int _fdt_node_end_offset(void *fdt, int nodeoffset);
static inline const void *_fdt_offset_ptr(const void *fdt, int offset)
{
return (const char *)fdt + fdt_off_dt_struct(fdt) + offset;
}
static inline void *_fdt_offset_ptr_w(void *fdt, int offset)
{
return (void *)(uintptr_t)_fdt_offset_ptr(fdt, offset);
}
static inline const struct fdt_reserve_entry *_fdt_mem_rsv(const void *fdt, int n)
{
const struct fdt_reserve_entry *rsv_table =
(const struct fdt_reserve_entry *)
((const char *)fdt + fdt_off_mem_rsvmap(fdt));
return rsv_table + n;
}
static inline struct fdt_reserve_entry *_fdt_mem_rsv_w(void *fdt, int n)
{
return (void *)(uintptr_t)_fdt_mem_rsv(fdt, n);
}
#define FDT_SW_MAGIC (~FDT_MAGIC)
#endif /* _LIBFDT_INTERNAL_H */