MDIO_OFFSET
#define MDIOCONTROL (MDIO_OFFSET + 0x04)
#define MDIOLINKINTRAW (MDIO_OFFSET + 0x10)
#define MDIOLINKINTMASKED (MDIO_OFFSET + 0x14)
#define MDIOUSERACCESS0 (MDIO_OFFSET + 0x80)
#define MDIOUSERPHYSEL0 (MDIO_OFFSET + 0x84)
#define MDIOUSERACCESS1 (MDIO_OFFSET + 0x88)
#define MDIOUSERPHYSEL1 (MDIO_OFFSET + 0x8C)