diff --git a/include/linux/phy.h b/include/linux/phy.h
index edd4c88ca7d8d..2a659789f9ca1 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -55,6 +55,7 @@ typedef enum {
 	PHY_INTERFACE_MODE_TBI,
 	PHY_INTERFACE_MODE_RMII,
 	PHY_INTERFACE_MODE_RGMII,
+	PHY_INTERFACE_MODE_RGMII_ID,
 	PHY_INTERFACE_MODE_RTBI
 } phy_interface_t;