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Commit e2c8e425 authored Nov 11, 2010 by Li Yang Committed by Dan Williams Dec 03, 2010

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>

parent e8a7e48b

drivers/dma/fsldma.c

+3 −1

Original line number	Diff line number	Diff line
		/*
		* 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);

		/*