1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (c) 2017 Google, Inc 4 * Written by Simon Glass <sjg (at) chromium.org> 5 */ 6 7 #ifndef _DM_OF_EXTRA_H 8 #define _DM_OF_EXTRA_H 9 10 #include <dm/ofnode.h> 11 12 enum fmap_compress_t { 13 FMAP_COMPRESS_NONE, 14 FMAP_COMPRESS_LZO, 15 }; 16 17 enum fmap_hash_t { 18 FMAP_HASH_NONE, 19 FMAP_HASH_SHA1, 20 FMAP_HASH_SHA256, 21 }; 22 23 /* A flash map entry, containing an offset and length */ 24 struct fmap_entry { 25 uint32_t offset; 26 uint32_t length; 27 uint32_t used; /* Number of bytes used in region */ 28 enum fmap_compress_t compress_algo; /* Compression type */ 29 enum fmap_hash_t hash_algo; /* Hash algorithm */ 30 const uint8_t *hash; /* Hash value */ 31 int hash_size; /* Hash size */ 32 }; 33 34 /** 35 * Read a flash entry from the fdt 36 * 37 * @param node Reference to node to read 38 * @param name Name of node being read 39 * @param entry Place to put offset and size of this node 40 * @return 0 if ok, -ve on error 41 */ 42 int of_read_fmap_entry(ofnode node, const char *name, 43 struct fmap_entry *entry); 44 45 #endif 46
