+/* MAC_WT0 register bits */
+#define MAC_WT0_MAWC BIT(0) /* MAC address write command */
+#define MAC_WT0_MWD_SHIFT 1
+#define MAC_WT0_MWD BIT(1) /* MAC write done */
+#define MAC_WT0_WFB BIT(2) /* Write Filter Bit */
+#define MAC_WT0_WVN_SHIFT 3 /* Write Vlan Number shift */
+#define MAC_WT0_WVE BIT(6) /* Write VLAN enable */
+#define MAC_WT0_WPMN_SHIFT 7
+#define MAC_WT0_WAF_SHIFT 13 /* Write Age Field shift */
+#define MAC_WT0_WAF_EMPTY 0
+#define MAC_WT0_WAF_STATIC 7 /* age: static */
+#define MAC_WT0_MAC0_SHIFT 16
+#define MAC_WT0_MAC1_SHIFT 24
+
+/* MAC_WT1 register bits */
+#define MAC_WT1_MAC2_SHIFT 0
+#define MAC_WT1_MAC3_SHIFT 8
+#define MAC_WT1_MAC4_SHIFT 16
+#define MAC_WT1_MAC5_SHIFT 24
+