--- /dev/null	2021-04-17 08:37:41.123461000 +0300
+++ arch/arm/dts/rk3399-nanopi-r4s-u-boot.dtsi	2021-04-17 08:23:24.947201000 +0300
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Jagan Teki <jagan@amarulasolutions.com>
+ */
+
+#include "rk3399-nanopi4-u-boot.dtsi"
+#include "rk3399-sdram-lpddr4-100.dtsi"
+#include "rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi"
+#include "rk3399-sdram-ddr3-1866.dtsi"