diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index c22fbaf..d8846df 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -90,6 +90,7 @@
 	rk3288-popmetal.dtb \
 	rk3288-rock2-square.dtb \
 	rk3288-tinker.dtb \
+	rk3288-tinker-s.dtb \
 	rk3288-veyron-jerry.dtb \
 	rk3288-veyron-mickey.dtb \
 	rk3288-veyron-minnie.dtb \
diff --git a/arch/arm/dts/rk3288-tinker-s-u-boot.dtsi b/arch/arm/dts/rk3288-tinker-s-u-boot.dtsi
new file mode 100644
index 0000000..a177fca
--- /dev/null
+++ b/arch/arm/dts/rk3288-tinker-s-u-boot.dtsi
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Amarula Solutions SRO
+ */
+
+#include "rk3288-u-boot.dtsi"
+#include "rk3288-tinker-u-boot.dtsi"
+
+/ {
+	chosen {
+		u-boot,spl-boot-order = \
+			"same-as-spl", &sdmmc, &emmc;
+	};
+};
+
+&emmc {
+	u-boot,dm-spl;
+};
+
+&emmc_clk {
+	u-boot,dm-spl;
+};
+
+&emmc_cmd {
+	u-boot,dm-spl;
+};
+
+&emmc_pwr {
+	u-boot,dm-spl;
+};
+
+&emmc_bus8 {
+	u-boot,dm-spl;
+};
diff --git a/arch/arm/dts/rk3288-tinker-s.dts b/arch/arm/dts/rk3288-tinker-s.dts
new file mode 100644
index 0000000..cc7ac5f
--- /dev/null
+++ b/arch/arm/dts/rk3288-tinker-s.dts
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (c) 2017 Fuzhou Rockchip Electronics Co., Ltd.
+ */
+
+/dts-v1/;
+
+#include "rk3288-tinker.dtsi"
+
+/ {
+	model = "Rockchip RK3288 Asus Tinker Board S";
+	compatible = "asus,rk3288-tinker-s", "rockchip,rk3288";
+
+	chosen {
+		stdout-path = &uart2;
+	};
+};
+
+&emmc {
+	bus-width = <8>;
+	cap-mmc-highspeed;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_pwr &emmc_bus8>;
+	max-frequency = <150000000>;
+	mmc-hs200-1_8v;
+	mmc-ddr-1_8v;
+	status = "okay";
+};