Document the bindings for the Aspeed AST25XX and AST26XX XDMA engine. Signed-off-by: Eddie James <eajames@xxxxxxxxxxxxx> --- .../devicetree/bindings/soc/aspeed/xdma.txt | 24 ++++++++++++++++++++++ MAINTAINERS | 6 ++++++ 2 files changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/aspeed/xdma.txt diff --git a/Documentation/devicetree/bindings/soc/aspeed/xdma.txt b/Documentation/devicetree/bindings/soc/aspeed/xdma.txt new file mode 100644 index 0000000..b6053e0 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/aspeed/xdma.txt @@ -0,0 +1,24 @@ +Aspeed AST25XX and AST26XX XDMA Engine + +The XDMA Engine embedded in the AST2500 and AST2600 SOCs can perform automatic +DMA operations over PCI between the SOC (acting as a BMC) and a host processor. + +Required properties: + - compatible : must be "aspeed,ast2500-xdma" or + "aspeed,ast2600-xdma" + - reg : contains the address and size of the memory region + associated with the XDMA engine registers + - resets : reset specifier for the syscon reset associated with + the XDMA engine + - interrupts-extended : two interrupt nodes; the first specifies the global + interrupt for the XDMA engine and the second + specifies the PCI-E reset or PERST interrupt. + +Example: + + xdma@1e6e7000 { + compatible = "aspeed,ast2500-xdma"; + reg = <0x1e6e7000 0x100>; + resets = <&syscon ASPEED_RESET_XDMA>; + interrupts-extended = <&vic 6>, <&scu_ic ASPEED_AST2500_SCU_IC_PCIE_RESET_LO_TO_HI>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index c46181c..540bd45 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2691,6 +2691,12 @@ S: Maintained F: drivers/media/platform/aspeed-video.c F: Documentation/devicetree/bindings/media/aspeed-video.txt +ASPEED XDMA ENGINE DRIVER +M: Eddie James <eajames@xxxxxxxxxxxxx> +L: linux-aspeed@xxxxxxxxxxxxxxxx (moderated for non-subscribers) +S: Maintained +F: Documentation/devicetree/bindings/soc/aspeed/xdma.txt + ASUS NOTEBOOKS AND EEEPC ACPI/WMI EXTRAS DRIVERS M: Corentin Chary <corentin.chary@xxxxxxxxx> L: acpi4asus-user@xxxxxxxxxxxxxxxxxxxxx -- 1.8.3.1