+/* Bits in MMDREG_TXDIS */
+#define MDIO_MMDREG_TXDIS_GLOBAL_LBN (0)
+#define MDIO_MMDREG_TXDIS_GLOBAL_WIDTH (1)
+
+/* MMD-specific bits, ordered by MMD, then register */
+#define MDIO_PMAPMD_CTRL1_LBACK_LBN (0)
+#define MDIO_PMAPMD_CTRL1_LBACK_WIDTH (1)
+