> + /* There are two PCSs available for QCA8084, which support the > + * following interface modes. > + * > + * 1. PHY_INTERFACE_MODE_10G_QXGMII utilizes PCS1 for all > + * available 4 ports, which is for all link speeds. > + * > + * 2. PHY_INTERFACE_MODE_2500BASEX utilizes PCS0 for the > + * fourth port, which is only for the link speed 2500M same > + * as QCA8081. > + * > + * 3. PHY_INTERFACE_MODE_SGMII utilizes PCS0 for the fourth > + * port, which is for the link speed 10M, 100M and 1000M same > + * as QCA8081. > + */ How are these 3 modes configured? I don't see any software configuration of this in these drivers. Can it only by configured by strapping? I think there should be some validation of the phydev->interface mode. Are ports 1-3 set to PHY_INTERFACE_MODE_10G_QXGMII? Is port 4 interface mode consistent with the strapping? Andrew