MT_TX_CPU_FROM_FCE_CPU_DESC_IDX
val = mt76_rr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX);
mt76_wr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX, val);
val = mt7601u_rr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX);
mt7601u_wr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX, val);