1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (c) 2017 Google, Inc 3*4882a593Smuzhiyun * Written by Simon Glass <sjg@chromium.org> 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #ifndef _DM_OF_EXTRA_H 9*4882a593Smuzhiyun #define _DM_OF_EXTRA_H 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <dm/ofnode.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun enum fmap_compress_t { 14*4882a593Smuzhiyun FMAP_COMPRESS_NONE, 15*4882a593Smuzhiyun FMAP_COMPRESS_LZO, 16*4882a593Smuzhiyun }; 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun enum fmap_hash_t { 19*4882a593Smuzhiyun FMAP_HASH_NONE, 20*4882a593Smuzhiyun FMAP_HASH_SHA1, 21*4882a593Smuzhiyun FMAP_HASH_SHA256, 22*4882a593Smuzhiyun }; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun /* A flash map entry, containing an offset and length */ 25*4882a593Smuzhiyun struct fmap_entry { 26*4882a593Smuzhiyun uint32_t offset; 27*4882a593Smuzhiyun uint32_t length; 28*4882a593Smuzhiyun uint32_t used; /* Number of bytes used in region */ 29*4882a593Smuzhiyun enum fmap_compress_t compress_algo; /* Compression type */ 30*4882a593Smuzhiyun enum fmap_hash_t hash_algo; /* Hash algorithm */ 31*4882a593Smuzhiyun const uint8_t *hash; /* Hash value */ 32*4882a593Smuzhiyun int hash_size; /* Hash size */ 33*4882a593Smuzhiyun }; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun /** 36*4882a593Smuzhiyun * Read a flash entry from the fdt 37*4882a593Smuzhiyun * 38*4882a593Smuzhiyun * @param node Reference to node to read 39*4882a593Smuzhiyun * @param name Name of node being read 40*4882a593Smuzhiyun * @param entry Place to put offset and size of this node 41*4882a593Smuzhiyun * @return 0 if ok, -ve on error 42*4882a593Smuzhiyun */ 43*4882a593Smuzhiyun int of_read_fmap_entry(ofnode node, const char *name, 44*4882a593Smuzhiyun struct fmap_entry *entry); 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun #endif 47