diff --git a/pfe_ctrl/pfe_eth.c b/pfe_ctrl/pfe_eth.c
index 0d9dcbd..a8891d9 100644
--- a/pfe_ctrl/pfe_eth.c
+++ b/pfe_ctrl/pfe_eth.c
@@ -1045,6 +1045,10 @@
 				return PHY_INTERFACE_MODE_GMII;
 				break;
 			case CONFIG_COMCERTO_USE_RGMII:
+				if (priv->einfo->phy_flags &
+						GEMAC_PHY_RGMII_ADD_DELAY) {
+					return PHY_INTERFACE_MODE_RGMII_ID;
+				}
 				return PHY_INTERFACE_MODE_RGMII;
 				break;
 			case CONFIG_COMCERTO_USE_RMII: