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>master
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/*
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* Copyright (c) 2017 Google, Inc |
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* Written by Simon Glass <sjg@chromium.org> |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#include <common.h> |
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#include <libfdt.h> |
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#include <dm/of_access.h> |
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#include <dm/of_extra.h> |
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#include <dm/ofnode.h> |
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int of_read_fmap_entry(ofnode node, const char *name, |
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struct fmap_entry *entry) |
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{ |
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const char *prop; |
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u32 reg[2]; |
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if (ofnode_read_u32_array(node, "reg", reg, 2)) { |
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debug("Node '%s' has bad/missing 'reg' property\n", name); |
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return -FDT_ERR_NOTFOUND; |
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} |
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entry->offset = reg[0]; |
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entry->length = reg[1]; |
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entry->used = ofnode_read_s32_default(node, "used", entry->length); |
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prop = ofnode_read_string(node, "compress"); |
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entry->compress_algo = prop && !strcmp(prop, "lzo") ? |
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FMAP_COMPRESS_LZO : FMAP_COMPRESS_NONE; |
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prop = ofnode_read_string(node, "hash"); |
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if (prop) |
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entry->hash_size = strlen(prop); |
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entry->hash_algo = prop ? FMAP_HASH_SHA256 : FMAP_HASH_NONE; |
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entry->hash = (uint8_t *)prop; |
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return 0; |
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} |
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/*
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* Copyright (c) 2017 Google, Inc |
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* Written by Simon Glass <sjg@chromium.org> |
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* |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#ifndef _DM_OF_EXTRA_H |
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#define _DM_OF_EXTRA_H |
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#include <dm/ofnode.h> |
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enum fmap_compress_t { |
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FMAP_COMPRESS_NONE, |
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FMAP_COMPRESS_LZO, |
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}; |
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enum fmap_hash_t { |
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FMAP_HASH_NONE, |
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FMAP_HASH_SHA1, |
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FMAP_HASH_SHA256, |
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}; |
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/* A flash map entry, containing an offset and length */ |
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struct fmap_entry { |
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uint32_t offset; |
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uint32_t length; |
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uint32_t used; /* Number of bytes used in region */ |
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enum fmap_compress_t compress_algo; /* Compression type */ |
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enum fmap_hash_t hash_algo; /* Hash algorithm */ |
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const uint8_t *hash; /* Hash value */ |
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int hash_size; /* Hash size */ |
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}; |
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/**
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* Read a flash entry from the fdt |
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* |
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* @param node Reference to node to read |
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* @param name Name of node being read |
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* @param entry Place to put offset and size of this node |
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* @return 0 if ok, -ve on error |
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*/ |
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int of_read_fmap_entry(ofnode node, const char *name, |
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struct fmap_entry *entry); |
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#endif |
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