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amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask

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Use the dma_set_mask_and_coherent function to set the DMA mask rather
than setting the DMA mask fields directly.  This was originally done
to work around a bug in the arm64 DMA support when RAM started above
the 4GB boundary which has since been fixed.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lendacky, Thomas 2014-08-05 13:30:38 -05:00 committed by David S. Miller
parent c2a198569a
commit f3d0e78d2e
1 changed files with 5 additions and 2 deletions
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7
drivers/net/ethernet/amd/xgbe/xgbe-main.c
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@ -303,8 +303,11 @@ static int xgbe_probe(struct platform_device *pdev)
/* Set the DMA mask */
if (!dev->dma_mask)
dev->dma_mask = &dev->coherent_dma_mask;
*(dev->dma_mask) = DMA_BIT_MASK(40);
dev->coherent_dma_mask = DMA_BIT_MASK(40);
ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40));
if (ret) {
dev_err(dev, "dma_set_mask_and_coherent failed\n");
goto err_io;
}
if (of_property_read_bool(dev->of_node, "dma-coherent")) {
pdata->axdomain = XGBE_DMA_OS_AXDOMAIN;