[PATCH v3 0/8] drivers/soc: Add Aspeed XDMA Engine Driver

Eddie James
2019-05-29T18:10:20Z

The XDMA engine embedded in the AST2500 SOC performs PCI DMA operations
between the SOC (acting as a BMC) and a host processor in a server.

This series adds a driver to control the XDMA engine in order to easily
perform DMA operations to and from the host processor.

Changes since v2:
- Switch to one pci device config sysfs file
- Add documentation for pci device config sysfs file
- Add module parameter for pci device config
- Switch to genalloc instead of custom allocator
- Fix alignment of user structure
- Cleaned up debugfs functions

I previously sent this series v1 to drivers/misc, but I'm now fairly certain
it belongs in drivers/soc, especially since the other Aspeed drivers have been
moved to soc.

Changes since v1:
- Correct the XDMA command pitch
- Don't use packed for the aspeed_xdma_op structure
- Correct the SCU PCI config change

Eddie James (8):
dt-bindings: soc: Add Aspeed XDMA engine binding documentation
drivers/soc: Add Aspeed XDMA Engine Driver
drivers/soc: xdma: Add user interface
Documentation: ABI: Add aspeed-xdma sysfs documentation
drivers/soc: xdma: Add PCI device configuration sysfs
drivers/soc: xdma: Add debugfs entries
ARM: dts: aspeed: Add XDMA Engine
ARM: dts: aspeed: witherspoon: Enable XDMA Engine

.../ABI/testing/sysfs-devices-platform-aspeed-xdma | 11 +
.../devicetree/bindings/soc/aspeed/xdma.txt | 23 +
MAINTAINERS | 10 +
arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts | 4 +
arch/arm/boot/dts/aspeed-g5.dtsi | 8 +
drivers/soc/aspeed/Kconfig | 8 +
drivers/soc/aspeed/Makefile | 1 +
drivers/soc/aspeed/aspeed-xdma.c | 912 +++++++++++++++++++++
include/uapi/linux/aspeed-xdma.h | 26 +
9 files changed, 1003 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-devices-platform-aspeed-xdma
create mode 100644 Documentation/devicetree/bindings/soc/aspeed/xdma.txt
create mode 100644 drivers/soc/aspeed/aspeed-xdma.c
create mode 100644 include/uapi/linux/aspeed-xdma.h

--
1.8.3.1