+ [PHY_INTERFACE_MODE_25G_AUI] = "25g-aui",
+ [PHY_INTERFACE_MODE_XLAUI] = "xlaui4",
+ [PHY_INTERFACE_MODE_CAUI2] = "caui2",
+ [PHY_INTERFACE_MODE_CAUI4] = "caui4",
+ [PHY_INTERFACE_MODE_NCSI] = "NC-SI",
+ [PHY_INTERFACE_MODE_10GBASER] = "10gbase-r",
+ [PHY_INTERFACE_MODE_USXGMII] = "usxgmii",
+};
+
+/* Backplane modes:
+ * are considered a sub-type of phy_interface_t: XGMII
+ * and are specified in "phy-connection-type" with one of the following strings
+ */
+static const char * const backplane_mode_strings[] = {
+ "10gbase-kr",
+ "40gbase-kr4",