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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>
hifive-unleashed-5.1
Li Yang 2010-11-11 20:16:29 +08:00 committed by Dan Williams
parent e8a7e48bb2
commit e2c8e425ba
1 changed files with 3 additions and 1 deletions
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4
drivers/dma/fsldma.c
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@ -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);
/*