cppi_readl
cdd->dma_tdfdq = cppi_readl(cdd->ctrl_mem + DMA_TDFDQ);
desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(queue_num));
val = cppi_readl(cdd->qmgr_mem + QMGR_PEND(i));