MII_XGMAC_CMD_SHIFT   39 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c #define MII_XGMAC_WRITE			(1 << MII_XGMAC_CMD_SHIFT)
MII_XGMAC_CMD_SHIFT   40 drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c #define MII_XGMAC_READ			(3 << MII_XGMAC_CMD_SHIFT)