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Commit 0c42bd0e authored by Yong Wang's avatar Yong Wang Committed by Dan Williams
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dmaengine: Driver for Topcliff PCH DMA controller 



Topcliff PCH is the platform controller hub that is going to
be used in Intel's upcoming general embedded platforms. This
adds the driver for Topcliff PCH DMA controller. The DMA
channels are strictly for device to host or host to device
transfers and cannot be used for generic memcpy.

Signed-off-by: default avatarYong Wang <yong.y.wang@intel.com>
[kill GFP_ATOMIC, kill __raw_{read|write}l, locking fixlet]
Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent b3c567e4

drivers/dma/Kconfig

+7 −0
Original line number Diff line number Diff line
@@ -188,6 +188,13 @@ config PL330_DMA 
	  You need to provide platform specific settings via

	  platform_data for a dma-pl330 device.



config PCH_DMA

	tristate "Topcliff PCH DMA support"

	depends on PCI && X86

	select DMA_ENGINE

	help

	  Enable support for the Topcliff PCH DMA engine.



config DMA_ENGINE

	bool

drivers/dma/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -24,3 +24,4 @@ obj-$(CONFIG_AMCC_PPC440SPE_ADMA) += ppc4xx/ 
obj-$(CONFIG_TIMB_DMA) += timb_dma.o

obj-$(CONFIG_STE_DMA40) += ste_dma40.o ste_dma40_ll.o

obj-$(CONFIG_PL330_DMA) += pl330.o

obj-$(CONFIG_PCH_DMA) += pch_dma.o

drivers/dma/pch_dma.c

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include/linux/pch_dma.h

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