DMA4_IRQENABLE_L
ti_sdma_write_4(sc, DMA4_IRQENABLE_L(i), 0x00000000);
intr &= ti_sdma_read_4(sc, DMA4_IRQENABLE_L(j));
irq_enable = ti_sdma_read_4(sc, DMA4_IRQENABLE_L(j));
ti_sdma_write_4(sc, DMA4_IRQENABLE_L(j), irq_enable);
irq_enable = ti_sdma_read_4(sc, DMA4_IRQENABLE_L(0));
ti_sdma_write_4(sc, DMA4_IRQENABLE_L(0), irq_enable);