diff --git a/sys/dts/arm64/overlays/rk3328-uart1.dtso b/sys/dts/arm64/overlays/rk3328-uart1.dtso
new file mode 100644
index 00000000000..96ae37e363f
--- /dev/null
+++ b/sys/dts/arm64/overlays/rk3328-uart1.dtso
@@ -0,0 +1,12 @@
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "rockchip,rk3328";
+};
+
+&{/serial@ff120000} {
+	status = "okay";
+};
+
+/* vim: set ft=dts: */
diff --git a/sys/modules/dtb/rockchip/Makefile b/sys/modules/dtb/rockchip/Makefile
index b0d3b977a34..1e0c6a2d436 100644
--- a/sys/modules/dtb/rockchip/Makefile
+++ b/sys/modules/dtb/rockchip/Makefile
@@ -21,6 +21,7 @@ DTS=	\
 
 DTSO=	rk3328-analog-sound.dtso \
 	rk3328-i2c0.dtso \
+	rk3328-uart1.dtso \
 	rk3328-dwc3.dtso \
 	rk3399-mmc0-disable.dtso \
 	rk3399-mmc1-disable.dtso \