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authorLinus Walleij <linus.walleij@stericsson.com>2010-09-28 15:57:37 +0200
committerDan Williams <dan.j.williams@intel.com>2010-09-29 16:13:51 -0700
commite8689e63d4d2046079f2db9d494ac05c6885ac0c (patch)
tree29196d65697acc7fd49af9e00f2068413e29b771 /drivers/dma/Kconfig
parentb30a3f6257ed2105259b404d419b4964e363928c (diff)
downloadlinux-e8689e63d4d2046079f2db9d494ac05c6885ac0c.tar.bz2
dmaengine: driver for the ARM PL080/PL081 PrimeCells v5
This creates a DMAengine driver for the ARM PL080/PL081 PrimeCells based on the implementation earlier submitted by Peter Pearse. This is working like a charm for memcpy and slave DMA to the PL011 PrimeCell on the PB11MPCore. This DMA controller is used in mostly unmodified form in the ARM RealView and Versatile platforms, in the ST-Ericsson Nomadik, and in the ST SPEAr platform. It has been converted to use the header from the Samsung PL080 derivate instead of its own defintions. The Samsungs have a custom driver in their mach-* folders though, atleast we can share the register definitions. Cc: Peter Pearse <peter.pearse@arm.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Alessandro Rubini <rubini@unipv.it> Acked-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> [GFP_KERNEL to GFP_NOWAIT in pl08x_prep_dma_memcpy] Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/Kconfig')
-rw-r--r--drivers/dma/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 9520cf02edc8..f82ef10a8361 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -49,6 +49,14 @@ config INTEL_MID_DMAC
config ASYNC_TX_DISABLE_CHANNEL_SWITCH
bool
+config AMBA_PL08X
+ bool "ARM PrimeCell PL080 or PL081 support"
+ depends on ARM_AMBA && EXPERIMENTAL
+ select DMA_ENGINE
+ help
+ Platform has a PL08x DMAC device
+ which can provide DMA engine support
+
config INTEL_IOATDMA
tristate "Intel I/OAT DMA support"
depends on PCI && X86