diff options
| author | Li Yang <leoli@freescale.com> | 2010-11-11 20:16:29 +0800 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2010-12-03 14:02:45 -0800 |
| commit | e2c8e425baa01a4c8e6ae1b90194ed3d3cde0c66 (patch) | |
| tree | cb35b0e102d0207c42d65e88f78352dc8199f43e | |
| parent | e8a7e48bb248a1196484d3f8afa53bded2b24e71 (diff) | |
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>
| -rw-r--r-- | drivers/dma/fsldma.c | 4 |
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); /* |