dm: core: Update ofnode_read_fmap_entry() to read hashes

At present this function uses the old format for reading hashes. Add
support for the current format.

Add a test while we are here.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 12 insertions, 9 deletions

diff --git a/drivers/core/of_extra.c b/drivers/core/of_extra.c
index 6420e6e..6533445 100644
--- a/drivers/core/of_extra.c
+++ b/drivers/core/of_extra.c
@@ -14,16 +14,17 @@
 int ofnode_read_fmap_entry(ofnode node, struct fmap_entry *entry)
 {
 	const char *prop;
+	ofnode subnode;
 
 	if (ofnode_read_u32(node, "image-pos", &entry->offset)) {
 		debug("Node '%s' has bad/missing 'image-pos' property\n",
 		      ofnode_get_name(node));
-		return log_ret(-ENOENT);
+		return log_msg_ret("image-pos", -ENOENT);
 	}
 	if (ofnode_read_u32(node, "size", &entry->length)) {
 		debug("Node '%s' has bad/missing 'size' property\n",
 		      ofnode_get_name(node));
-		return log_ret(-ENOENT);
+		return log_msg_ret("size", -ENOENT);
 	}
 	entry->used = ofnode_read_s32_default(node, "used", entry->length);
 	prop = ofnode_read_string(node, "compress");
@@ -31,18 +32,20 @@ int ofnode_read_fmap_entry(ofnode node, struct fmap_entry *entry)
 		if (!strcmp(prop, "lz4"))
 			entry->compress_algo = FMAP_COMPRESS_LZ4;
 		else
-			return log_msg_ret("Unknown compression algo",
-					   -EINVAL);
+			return log_msg_ret("compression algo", -EINVAL);
 	} else {
 		entry->compress_algo = FMAP_COMPRESS_NONE;
 	}
 	entry->unc_length = ofnode_read_s32_default(node, "uncomp-size",
 						    entry->length);
-	prop = ofnode_read_string(node, "hash");
-	if (prop)
-		entry->hash_size = strlen(prop);
-	entry->hash_algo = prop ? FMAP_HASH_SHA256 : FMAP_HASH_NONE;
-	entry->hash = (uint8_t *)prop;
+	subnode = ofnode_find_subnode(node, "hash");
+	if (ofnode_valid(subnode)) {
+		prop = ofnode_read_prop(subnode, "value", &entry->hash_size);
+
+		/* Assume it is sha256 */
+		entry->hash_algo = prop ? FMAP_HASH_SHA256 : FMAP_HASH_NONE;
+		entry->hash = (uint8_t *)prop;
+	}
 
 	return 0;
 }