DMA_RWCTRL_WRITE_BNDRY_MASK
tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;
if ((tp->dma_rwctrl & DMA_RWCTRL_WRITE_BNDRY_MASK) !=
tp->dma_rwctrl &= ~DMA_RWCTRL_WRITE_BNDRY_MASK;