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