bcm_dma_setup_dst
int bcm_dma_setup_dst(int ch, int dreq, int inc_addr, int width);
bcm_dma_setup_dst(sc->sc_dma_ch, BCM_DMA_DREQ_NONE,
bcm_dma_setup_dst(sc->sc_dma_ch, sc->conf->emmc_dreq,