[PATCH 2/5] sata highbank: enable 64-bit DMA mask when using LPAE

[Mark Langsdorf]

From: Rob Herring <rob.herring@xxxxxxxxxxx>

Signed-off-by: Rob Herring <rob.herring@xxxxxxxxxxx>
Signed-off-by: Mark Langsdorf <mark.langsdorf@xxxxxxxxxxx>
---
 drivers/ata/sata_highbank.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c
index e9a4f46..8b40025 100644
--- a/drivers/ata/sata_highbank.c
+++ b/drivers/ata/sata_highbank.c
@@ -479,6 +479,9 @@ static int ahci_highbank_probe(struct platform_device *pdev)
 	if (hpriv->cap & HOST_CAP_PMP)
 		pi.flags |= ATA_FLAG_PMP;
 
+	if (hpriv->cap & HOST_CAP_64)
+		dma_set_coherent_mask(dev, DMA_BIT_MASK(64));
+
 	/* CAP.NP sometimes indicate the index of the last enabled
 	 * port, at other times, that of the last possible port, so
 	 * determining the maximum port number requires looking at
-- 
1.8.1.2

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