skb->dev = ugeth->dev;
 
        out_be32(&((struct qe_bd __iomem *)bd)->buf,
-                     dma_map_single(NULL,
+                     dma_map_single(&ugeth->dev->dev,
                                     skb->data,
                                     ugeth->ug_info->uf_info.max_rx_buf_length +
                                     UCC_GETH_RX_DATA_BUF_ALIGNMENT,
                        continue;
                for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
                        if (ugeth->tx_skbuff[i][j]) {
-                               dma_unmap_single(NULL,
+                               dma_unmap_single(&ugeth->dev->dev,
                                                 in_be32(&((struct qe_bd __iomem *)bd)->buf),
                                                 (in_be32((u32 __iomem *)bd) &
                                                  BD_LENGTH_MASK),
                        bd = ugeth->p_rx_bd_ring[i];
                        for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
                                if (ugeth->rx_skbuff[i][j]) {
-                                       dma_unmap_single(NULL,
+                                       dma_unmap_single(&ugeth->dev->dev,
                                                in_be32(&((struct qe_bd __iomem *)bd)->buf),
                                                ugeth->ug_info->
                                                uf_info.max_rx_buf_length +
 
        /* set up the buffer descriptor */
        out_be32(&((struct qe_bd __iomem *)bd)->buf,
-                     dma_map_single(NULL, skb->data, skb->len, DMA_TO_DEVICE));
+                     dma_map_single(&ugeth->dev->dev, skb->data,
+                             skb->len, DMA_TO_DEVICE));
 
        /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */