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authorLi Yang <leoli@freescale.com>2010-11-11 20:16:29 +0800
committerDan Williams <dan.j.williams@intel.com>2010-12-03 14:02:45 -0800
commite2c8e425baa01a4c8e6ae1b90194ed3d3cde0c66 (patch)
treecb35b0e102d0207c42d65e88f78352dc8199f43e /drivers
parente8a7e48bb248a1196484d3f8afa53bded2b24e71 (diff)
downloadtalos-op-linux-e2c8e425baa01a4c8e6ae1b90194ed3d3cde0c66.tar.gz
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fsldma: add support to 36-bit physical address
Expand the dma_mask of fsldma device to 36-bit, indicating that the DMA engine can deal with 36-bit physical address and does not need the SWIOTLB to create bounce buffer for it when doing dma_map_*(). Signed-off-by: Li Yang <leoli@freescale.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/dma/fsldma.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 286c3ac6bdcc..531230b87976 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -1,7 +1,7 @@
/*
* Freescale MPC85xx, MPC83xx DMA Engine support
*
- * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ * Copyright (C) 2007-2010 Freescale Semiconductor, Inc. All rights reserved.
*
* Author:
* Zhang Wei <wei.zhang@freescale.com>, Jul 2007
@@ -1322,6 +1322,8 @@ static int __devinit fsldma_of_probe(struct platform_device *op,
fdev->common.device_control = fsl_dma_device_control;
fdev->common.dev = &op->dev;
+ dma_set_mask(&(op->dev), DMA_BIT_MASK(36));
+
dev_set_drvdata(&op->dev, fdev);
/*
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