- /* Load the completion writeback physical address
- *
- * NOTE: pci_alloc_consistent(), used above to alloc DMA regions,
- * ALWAYS returns SAC (32-bit) addresses. If DAC (64-bit) addresses
- * are ever returned, make sure the high part is retrieved here before
- * storing the adjusted address.
- */
- writel(0, &txdma->dma_wb_base_hi);
- writel(etdev->tx_ring.pTxStatusPa, &txdma->dma_wb_base_lo);
+ /* Load the completion writeback physical address */
+ writel((u32)((u64)etdev->tx_ring.pTxStatusPa >> 32),
+ &txdma->dma_wb_base_hi);
+ writel((u32)etdev->tx_ring.pTxStatusPa, &txdma->dma_wb_base_lo);