diff --git a/arch/arm/dts/imx6ull-colibri.dts b/arch/arm/dts/imx6ull-colibri.dts
index 2f8865c29c..f05c72eb2c 100644
--- a/arch/arm/dts/imx6ull-colibri.dts
+++ b/arch/arm/dts/imx6ull-colibri.dts
@@ -182,21 +182,24 @@
 	status = "disabled";
 };
 
+/* Colibri UART_A */
 &uart1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1 &pinctrl_uart1_ctrl1>;
-	fsl,uart-has-rtscts;
+	uart-has-rtscts;
 	fsl,dte-mode;
 	status = "okay";
 };
 
+/* Colibri UART_B */
 &uart2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart2>;
-	fsl,uart-has-rtscts;
+	uart-has-rtscts;
 	fsl,dte-mode;
 };
 
+/* Colibri UART_C */
 &uart5 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart5>;