1 /* 2 * Copyright (c) 2017 Google, Inc 3 * Written by Simon Glass <sjg@chromium.org> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <linux/libfdt.h> 10 #include <dm/of_access.h> 11 #include <dm/of_extra.h> 12 #include <dm/ofnode.h> 13 14 int of_read_fmap_entry(ofnode node, const char *name, 15 struct fmap_entry *entry) 16 { 17 const char *prop; 18 u32 reg[2]; 19 20 if (ofnode_read_u32_array(node, "reg", reg, 2)) { 21 debug("Node '%s' has bad/missing 'reg' property\n", name); 22 return -FDT_ERR_NOTFOUND; 23 } 24 entry->offset = reg[0]; 25 entry->length = reg[1]; 26 entry->used = ofnode_read_s32_default(node, "used", entry->length); 27 prop = ofnode_read_string(node, "compress"); 28 entry->compress_algo = prop && !strcmp(prop, "lzo") ? 29 FMAP_COMPRESS_LZO : FMAP_COMPRESS_NONE; 30 prop = ofnode_read_string(node, "hash"); 31 if (prop) 32 entry->hash_size = strlen(prop); 33 entry->hash_algo = prop ? FMAP_HASH_SHA256 : FMAP_HASH_NONE; 34 entry->hash = (uint8_t *)prop; 35 36 return 0; 37 } 38