xmdio_read
pcs_value = xmdio_read(xpcs_regs->ioaddr, MDIO_MMD_PCS, MDIO_CTRL1);
pcs_value = xmdio_read(xpcs_regs->ioaddr, MDIO_MMD_PCS,
value = xmdio_read(xpcs_regs->ioaddr, MDIO_MMD_AN, MDIO_CTRL1);