4 files changed, 64 insertions, 14 deletions

diff --git a/drivers/core/fdtaddr.c b/drivers/core/fdtaddr.c
index f8cdbd6688d..bfd9580050c 100644
--- a/drivers/core/fdtaddr.c
+++ b/drivers/core/fdtaddr.c
@@ -138,7 +138,7 @@ void *devfdt_get_addr_ptr(struct udevice *dev)
 
 void *devfdt_remap_addr_index(struct udevice *dev, int index)
 {
-	fdt_addr_t addr = devfdt_get_addr(dev);
+	fdt_addr_t addr = devfdt_get_addr_index(dev, index);
 
 	if (addr == FDT_ADDR_T_NONE)
 		return NULL;
diff --git a/drivers/core/of_access.c b/drivers/core/of_access.c
index 0729dfcdb3b..14c020a687b 100644
--- a/drivers/core/of_access.c
+++ b/drivers/core/of_access.c
@@ -376,6 +376,33 @@ struct device_node *of_find_compatible_node(struct device_node *from,
 	return np;
 }
 
+static int of_device_has_prop_value(const struct device_node *device,
+				    const char *propname, const void *propval,
+				    int proplen)
+{
+	struct property *prop = of_find_property(device, propname, NULL);
+
+	if (!prop || !prop->value || prop->length != proplen)
+		return 0;
+	return !memcmp(prop->value, propval, proplen);
+}
+
+struct device_node *of_find_node_by_prop_value(struct device_node *from,
+					       const char *propname,
+					       const void *propval, int proplen)
+{
+	struct device_node *np;
+
+	for_each_of_allnodes_from(from, np) {
+		if (of_device_has_prop_value(np, propname, propval, proplen) &&
+		    of_node_get(np))
+			break;
+	}
+	of_node_put(from);
+
+	return np;
+}
+
 struct device_node *of_find_node_by_phandle(phandle handle)
 {
 	struct device_node *np;
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c
index 0cfb0fbabb0..a7e19277232 100644
--- a/drivers/core/ofnode.c
+++ b/drivers/core/ofnode.c
@@ -777,3 +777,17 @@ ofnode ofnode_by_compatible(ofnode from, const char *compat)
 				gd->fdt_blob, ofnode_to_offset(from), compat));
 	}
 }
+
+ofnode ofnode_by_prop_value(ofnode from, const char *propname,
+			    const void *propval, int proplen)
+{
+	if (of_live_active()) {
+		return np_to_ofnode(of_find_node_by_prop_value(
+			(struct device_node *)ofnode_to_np(from), propname,
+			propval, proplen));
+	} else {
+		return offset_to_ofnode(fdt_node_offset_by_prop_value(
+				gd->fdt_blob, ofnode_to_offset(from),
+				propname, propval, proplen));
+	}
+}
diff --git a/drivers/core/root.c b/drivers/core/root.c
index 72bcc7d7f2a..47d10b888fa 100644
--- a/drivers/core/root.c
+++ b/drivers/core/root.c
@@ -330,10 +330,25 @@ static int dm_scan_fdt_node(struct udevice *parent, const void *blob,
 }
 #endif
 
+static int dm_scan_fdt_ofnode_path(const char *path, bool pre_reloc_only)
+{
+	ofnode node;
+
+	node = ofnode_path(path);
+	if (!ofnode_valid(node))
+		return 0;
+
+#if CONFIG_IS_ENABLED(OF_LIVE)
+	if (of_live_active())
+		return dm_scan_fdt_live(gd->dm_root, node.np, pre_reloc_only);
+#endif
+	return dm_scan_fdt_node(gd->dm_root, gd->fdt_blob, node.of_offset,
+				pre_reloc_only);
+}
+
 int dm_extended_scan_fdt(const void *blob, bool pre_reloc_only)
 {
 	int ret;
-	ofnode node;
 
 	ret = dm_scan_fdt(gd->fdt_blob, pre_reloc_only);
 	if (ret) {
@@ -341,21 +356,15 @@ int dm_extended_scan_fdt(const void *blob, bool pre_reloc_only)
 		return ret;
 	}
 
-	/* bind fixed-clock */
-	node = ofnode_path("/clocks");
-	/* if no DT "clocks" node, no need to go further */
-	if (!ofnode_valid(node))
+	ret = dm_scan_fdt_ofnode_path("/clocks", pre_reloc_only);
+	if (ret) {
+		debug("scan for /clocks failed: %d\n", ret);
 		return ret;
+	}
 
-#if CONFIG_IS_ENABLED(OF_LIVE)
-	if (of_live_active())
-		ret = dm_scan_fdt_live(gd->dm_root, node.np, pre_reloc_only);
-	else
-#endif
-		ret = dm_scan_fdt_node(gd->dm_root, gd->fdt_blob, node.of_offset,
-				       pre_reloc_only);
+	ret = dm_scan_fdt_ofnode_path("/firmware", pre_reloc_only);
 	if (ret)
-		debug("dm_scan_fdt_node() failed: %d\n", ret);
+		debug("scan for /firmware failed: %d\n", ret);
 
 	return ret;
 }