This series adds a driver to control the Aspeed XDMA engine embedded in the
AST2500 and AST2600. The XDMA engine performs automatic DMA operations
over PCI-E between the Aspeed SOC (acting as a BMC) and a host processor.
Changes since v9:
- Remove the kernel command queue
- Use memcpy_toio instead to copy commands to the buffer
- Free the client's genalloc'd memory in the release method
- Switch the bindings documentation to yaml
- Add patches to fix SCU interrupt controller include
Changes since v8:
- Use DMA API to allocate memory from reserved region.
- Fix the driver for the AST2500 by keeping the command queue in kernel
memory and copying the whole buffer to the reserved memory area before
starting the operation.
- Add krefs to the client structure to prevent use-after-free.
- Switch reset-names binding to "device", "root-complex"
Eddie James (7):
dt-bindings: soc: Add Aspeed XDMA Engine
soc: aspeed: Add XDMA Engine Driver
soc: aspeed: xdma: Add user interface
soc: aspeed: xdma: Add reset ioctl
ARM: dts: Aspeed: AST2600: Add XDMA PCI-E root control reset
ARM: dts: Aspeed: AST2500: Add missing SCU interrupt controller
include
ARM: dts: Aspeed: AST2600: Add missing SCU interrupt controller
include
.../devicetree/bindings/soc/aspeed/xdma.yaml | 108 ++
MAINTAINERS | 8 +
arch/arm/boot/dts/aspeed-g5.dtsi | 1 +
arch/arm/boot/dts/aspeed-g6.dtsi | 4 +-
drivers/soc/aspeed/Kconfig | 8 +
drivers/soc/aspeed/Makefile | 1 +
drivers/soc/aspeed/aspeed-xdma.c | 1106 +++++++++++++++++
include/uapi/linux/aspeed-xdma.h | 42 +
8 files changed, 1277 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/soc/aspeed/xdma.yaml
create mode 100644 drivers/soc/aspeed/aspeed-xdma.c
create mode 100644 include/uapi/linux/aspeed-xdma.h
--
2.24.0
