diff --git a/common/bloblist.c b/common/bloblist.c
index 2d37391..980b1dd 100644
--- a/common/bloblist.c
+++ b/common/bloblist.c
@@ -542,3 +542,14 @@
 
 	return 0;
 }
+
+int bloblist_check_reg_conv(ulong rfdt, ulong rzero, ulong rsig)
+{
+	if (rzero || rsig != (BLOBLIST_MAGIC | BLOBLIST_REGCONV_VER) ||
+	    rfdt != (ulong)bloblist_find(BLOBLISTT_CONTROL_FDT, 0)) {
+		gd->bloblist = NULL;  /* Reset the gd bloblist pointer */
+		return -EIO;
+	}
+
+	return 0;
+}