start_miim_ops
ret = start_miim_ops(md->base, false, phyid, reg, 0, MDIO_CTRL_READ_OP);
ret = start_miim_ops(md->base, true, phyid, reg | devad << 16, 0,
ret = start_miim_ops(md->base, false, phyid, reg, val,
ret = start_miim_ops(md->base, true, phyid, reg | devad << 16, val,