TSNEP_CONTROL
iowrite32(TSNEP_CONTROL_RX_ENABLE, rx->addr + TSNEP_CONTROL);
iowrite32(TSNEP_CONTROL_RX_DISABLE, rx->addr + TSNEP_CONTROL);
readx_poll_timeout(ioread32, rx->addr + TSNEP_CONTROL, val,
readx_poll_timeout(ioread32, tx->addr + TSNEP_CONTROL, val,
iowrite32(TSNEP_CONTROL_TX_ENABLE, tx->addr + TSNEP_CONTROL);
iowrite32(TSNEP_CONTROL_TX_ENABLE, tx->addr + TSNEP_CONTROL);