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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef COMPRESSED_DTB_H_
#define COMPRESSED_DTB_H_
#include <linux/types.h>
#include <asm/unaligned.h>
struct barebox_boarddata_compressed_dtb {
#define BAREBOX_BOARDDATA_COMPRESSED_DTB_MAGIC 0x7b66bcbd
u32 magic;
u32 datalen;
u32 datalen_uncompressed;
u8 data[];
};
static inline bool blob_is_compressed_fdt(const void *blob)
{
const struct barebox_boarddata_compressed_dtb *dtb = blob;
return dtb->magic == BAREBOX_BOARDDATA_COMPRESSED_DTB_MAGIC;
}
static inline bool fdt_blob_can_be_decompressed(const void *blob)
{
return IS_ENABLED(CONFIG_USE_COMPRESSED_DTB) && blob
&& blob_is_compressed_fdt(blob);
}
static inline bool blob_is_fdt(const void *blob)
{
return get_unaligned_be32(blob) == FDT_MAGIC;
}
#endif
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