AXIDMA_RD4
if ((AXIDMA_RD4(sc, AXI_DMACR(chan_id)) & DMACR_RESET) == 0)
__func__, AXIDMA_RD4(sc, AXI_DMACR(chan_id)));
reg = AXIDMA_RD4(sc, AXI_DMACR(AXIDMA_TX_CHAN));
reg = AXIDMA_RD4(sc, AXI_DMACR(AXIDMA_RX_CHAN));
pending = AXIDMA_RD4(sc, AXI_DMASR(AXIDMA_RX_CHAN));
pending = AXIDMA_RD4(sc, AXI_DMASR(AXIDMA_TX_CHAN));