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dmaengine: Add driver for Altera / Intel mSGDMA IP core

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This driver adds support for the Altera / Intel modular Scatter-Gather
Direct Memory Access (mSGDMA) intellectual property (IP) to the Linux
DMAengine subsystem. Currently it supports the following op modes:

- DMA_MEMCPY
- DMA_SG
- DMA_SLAVE

This implementation has been tested on an Altera Cyclone FPGA connected
via PCIe, both on an ARM and an x86 platform.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Stefan Roese 2017-07-07 14:11:19 +02:00 • committed by Vinod Koul
parent 5771a8c088
commit a85c6f1b29
3 changed files with 1038 additions and 0 deletions
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6
drivers/dma/Kconfig
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@ -56,6 +56,12 @@ config DMA_OF
select DMA_ENGINE select DMA_ENGINE
#devices #devices
config ALTERA_MSGDMA
tristate "Altera / Intel mSGDMA Engine"
select DMA_ENGINE
help
Enable support for Altera / Intel mSGDMA controller.
config AMBA_PL08X config AMBA_PL08X
bool "ARM PrimeCell PL080 or PL081 support" bool "ARM PrimeCell PL080 or PL081 support"
depends on ARM_AMBA depends on ARM_AMBA

1
drivers/dma/Makefile
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@ -12,6 +12,7 @@ obj-$(CONFIG_DMA_OF) += of-dma.o
obj-$(CONFIG_DMATEST) += dmatest.o obj-$(CONFIG_DMATEST) += dmatest.o
#devices #devices
obj-$(CONFIG_ALTERA_MSGDMA) += altera-msgdma.o
obj-$(CONFIG_AMBA_PL08X) += amba-pl08x.o obj-$(CONFIG_AMBA_PL08X) += amba-pl08x.o
obj-$(CONFIG_AMCC_PPC440SPE_ADMA) += ppc4xx/ obj-$(CONFIG_AMCC_PPC440SPE_ADMA) += ppc4xx/
obj-$(CONFIG_AT_HDMAC) += at_hdmac.o obj-$(CONFIG_AT_HDMAC) += at_hdmac.o

1031
drivers/dma/altera-msgdma.c Normal file
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