diff --git a/plat/allwinner/sun50i_r329/include/sunxi_ccu.h b/plat/allwinner/sun50i_r329/include/sunxi_ccu.h
new file mode 100644
index 0000000..0e6b543
--- /dev/null
+++ b/plat/allwinner/sun50i_r329/include/sunxi_ccu.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2021 Sipeed
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SUNXI_CCU_H
+#define SUNXI_CCU_H
+
+#define SUNXI_CCU_SEC_SWITCH_REG	(SUNXI_CCU_BASE + 0x0f00)
+
+#define SUNXI_R_PRCM_SEC_SWITCH_REG	(SUNXI_R_PRCM_BASE + 0x0290)
+
+#endif /* SUNXI_CCU_H */