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: Yong Wang <yong.y.wang@intel.com> [kill GFP_ATOMIC, kill __raw_{read|write}l, locking fixlet] Signed-off-by: Dan Williams <dan.j.williams@intel.com>
mariux64 · Aug 4, 2010 · 0c42bd0 · 0c42bd0
1 parent b3c567e
commit 0c42bd0
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diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
@@ -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
 

diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
@@ -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