diff --git a/tools/rkcommon.c b/tools/rkcommon.c
index 72621fd095c69b69e7db9878b17b5bac30e8636b..9ec7eb23d8966081b0aadcba6c8a1af3650d8fbb 100644
--- a/tools/rkcommon.c
+++ b/tools/rkcommon.c
@@ -56,6 +56,7 @@ struct spl_info {
 static struct spl_info spl_infos[] = {
 	{ "rk3036", "RK30", 0x1000 },
 	{ "rk3288", "RK32", 0x8000 },
+	{ "rk33xx", "RK33", 0x20000 },
 };
 
 static unsigned char rc4_key[16] = {