diff --git a/arch/arm/boot/dts/tegra20-colibri-iris.dts b/arch/arm/boot/dts/tegra20-colibri-iris.dts
index 5b25e4b38a69..7a7530820188 100644
--- a/arch/arm/boot/dts/tegra20-colibri-iris.dts
+++ b/arch/arm/boot/dts/tegra20-colibri-iris.dts
@@ -145,6 +145,7 @@ i2c_ddc: i2c@7000c400 {
 	/* EHCI instance 0: USB1_DP/N -> USBC_P/N */
 	usb@c5000000 {
 		status = "okay";
+		dr_mode = "otg";
 	};
 
 	usb-phy@c5000000 {