dma_reg_read
val = dma_reg_read(ctlr, info->reg);
ret = (dma_reg_read(ctlr, info->reg) >> info->shift) & info->mask;
if (dma_reg_read(ctlr, CPDMA_SOFTRESET) == 0)
return dma_reg_read(ctlr, CPDMA_RXINTSTATMASKED);
return dma_reg_read(ctlr, CPDMA_TXINTSTATMASKED);