--- zzzz-none-000/linux-3.10.107/arch/mips/alchemy/common/dma.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/mips/alchemy/common/dma.c	2021-02-04 17:41:59.000000000 +0000
@@ -141,17 +141,17 @@
 
 	printk(KERN_INFO "Au1000 DMA%d Register Dump:\n", dmanr);
 	printk(KERN_INFO "  mode = 0x%08x\n",
-	       au_readl(chan->io + DMA_MODE_SET));
+	       __raw_readl(chan->io + DMA_MODE_SET));
 	printk(KERN_INFO "  addr = 0x%08x\n",
-	       au_readl(chan->io + DMA_PERIPHERAL_ADDR));
+	       __raw_readl(chan->io + DMA_PERIPHERAL_ADDR));
 	printk(KERN_INFO "  start0 = 0x%08x\n",
-	       au_readl(chan->io + DMA_BUFFER0_START));
+	       __raw_readl(chan->io + DMA_BUFFER0_START));
 	printk(KERN_INFO "  start1 = 0x%08x\n",
-	       au_readl(chan->io + DMA_BUFFER1_START));
+	       __raw_readl(chan->io + DMA_BUFFER1_START));
 	printk(KERN_INFO "  count0 = 0x%08x\n",
-	       au_readl(chan->io + DMA_BUFFER0_COUNT));
+	       __raw_readl(chan->io + DMA_BUFFER0_COUNT));
 	printk(KERN_INFO "  count1 = 0x%08x\n",
-	       au_readl(chan->io + DMA_BUFFER1_COUNT));
+	       __raw_readl(chan->io + DMA_BUFFER1_COUNT));
 }
 
 /*
@@ -204,7 +204,8 @@
 	}
 
 	/* fill it in */
-	chan->io = KSEG1ADDR(AU1000_DMA_PHYS_ADDR) + i * DMA_CHANNEL_LEN;
+	chan->io = (void __iomem *)(KSEG1ADDR(AU1000_DMA_PHYS_ADDR) +
+			i * DMA_CHANNEL_LEN);
 	chan->dev_id = dev_id;
 	chan->dev_str = dev_str;
 	chan->fifo_addr = dev->fifo_addr;