CLUSTER_TX_OFF
int serdes_unit = is_tx ? CLUSTER_TX_OFF : CLUSTER_RX_OFF;
int serdes_unit = is_tx ? CLUSTER_TX_OFF : CLUSTER_RX_OFF;
mca_modify(cl, CLUSTER_TX_OFF + REG_TX_SERDES_CONF,
cl->base + CLUSTER_TX_OFF + REG_TX_SERDES_BITSTART);
ret = mca_configure_serdes(cl, is_tx ? CLUSTER_TX_OFF : CLUSTER_RX_OFF,