diff options
| -rw-r--r-- | drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index a54a5c754da0..fa5dc2993520 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -1780,6 +1780,7 @@ static int axienet_probe(struct platform_device *pdev) struct net_device *ndev; const void *mac_addr; struct resource *ethres; + int addr_width = 32; u32 value; ndev = alloc_etherdev(sizeof(*lp)); @@ -1947,6 +1948,7 @@ static int axienet_probe(struct platform_device *pdev) iowrite32(0xffffffff, desc); if (ioread32(desc) > 0) { lp->features |= XAE_FEATURE_DMA_64BIT; + addr_width = 64; dev_info(&pdev->dev, "autodetected 64-bit DMA range\n"); } @@ -1954,6 +1956,12 @@ static int axienet_probe(struct platform_device *pdev) } } + ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(addr_width)); + if (ret) { + dev_err(&pdev->dev, "No suitable DMA available\n"); + goto free_netdev; + } + /* Check for Ethernet core IRQ (optional) */ if (lp->eth_irq <= 0) dev_info(&pdev->dev, "Ethernet core IRQ not defined\n"); |