u-boot/include/dm/of_extra.h
Simon Glass b7e0d73bad dm: core: Add a place to put extra device-tree reading functions
Some functions deal with structured data rather than simple data types.
It makes sense to have these in their own file. For now this just has a
function to read a flashmap entry. Move the data types also.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:07 -06:00

46 lines
1,018 B
C

/*
* Copyright (c) 2017 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _DM_OF_EXTRA_H
#define _DM_OF_EXTRA_H
#include <dm/ofnode.h>
enum fmap_compress_t {
FMAP_COMPRESS_NONE,
FMAP_COMPRESS_LZO,
};
enum fmap_hash_t {
FMAP_HASH_NONE,
FMAP_HASH_SHA1,
FMAP_HASH_SHA256,
};
/* A flash map entry, containing an offset and length */
struct fmap_entry {
uint32_t offset;
uint32_t length;
uint32_t used; /* Number of bytes used in region */
enum fmap_compress_t compress_algo; /* Compression type */
enum fmap_hash_t hash_algo; /* Hash algorithm */
const uint8_t *hash; /* Hash value */
int hash_size; /* Hash size */
};
/**
* Read a flash entry from the fdt
*
* @param node Reference to node to read
* @param name Name of node being read
* @param entry Place to put offset and size of this node
* @return 0 if ok, -ve on error
*/
int of_read_fmap_entry(ofnode node, const char *name,
struct fmap_entry *entry);
#endif