--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -150,6 +150,8 @@ static void dwc_initialize(struct dw_dma
 	cfghi |= DWC_CFGH_DST_PER(dwc->dst_id);
 	cfghi |= DWC_CFGH_SRC_PER(dwc->src_id);
 
+	cfghi |= DWC_CFGH_PROTCTL(3); /* bufferable + privileged access */
+
 	channel_writel(dwc, CFG_LO, cfglo);
 	channel_writel(dwc, CFG_HI, cfghi);
 
@@ -1539,11 +1541,8 @@ int dw_dma_probe(struct dw_dma_chip *chi
 		else
 			list_add(&dwc->chan.device_node, &dw->dma.channels);
 
-		/* 7 is highest priority & 0 is lowest. */
-		if (pdata->chan_priority == CHAN_PRIORITY_ASCENDING)
-			dwc->priority = pdata->nr_channels - i - 1;
-		else
-			dwc->priority = i;
+		/* set all channels to the same priority */
+		dwc->priority = pdata->nr_channels - 1;
 
 		dwc->ch_regs = &__dw_regs(dw)->CHAN[i];
 		spin_lock_init(&dwc->lock);