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    Subject[PATCH v6 05/12] dt-bindings: soc: Add Aspeed XDMA Engine
    Date
    Document the bindings for the Aspeed AST25XX and AST26XX XDMA engine.

    Signed-off-by: Eddie James <eajames@linux.ibm.com>
    Reviewed-by: Rob Herring <robh@kernel.org>
    ---
    .../devicetree/bindings/soc/aspeed/xdma.txt | 40 ++++++++++++++++++++++
    MAINTAINERS | 6 ++++
    2 files changed, 46 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..074bda5
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/soc/aspeed/xdma.txt
    @@ -0,0 +1,40 @@
    +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
    + - clocks : clock specifier for the clock associated with the
    + XDMA engine
    + - resets : reset specifier for the syscon reset associated with
    + the XDMA engine
    + - interrupts-extended : two interrupt cells; the first specifies the global
    + interrupt for the XDMA engine and the second
    + specifies the PCI-E reset or PERST interrupt.
    + - aspeed,scu : a phandle to the syscon node for the system control
    + unit of the SOC
    + - memory : contains the address and size of the memory area to
    + be used by the XDMA engine for DMA operations
    +
    +Optional properties:
    + - pcie-device : should be either "bmc" or "vga", corresponding to
    + which device should be used by the XDMA engine for
    + DMA operations. If this property is not set, the XDMA
    + engine will use the BMC PCI-E device.
    +
    +Example:
    +
    + xdma@1e6e7000 {
    + compatible = "aspeed,ast2500-xdma";
    + reg = <0x1e6e7000 0x100>;
    + clocks = <&syscon ASPEED_CLK_GATE_BCLK>;
    + resets = <&syscon ASPEED_RESET_XDMA>;
    + interrupts-extended = <&vic 6>, <&scu_ic ASPEED_AST2500_SCU_IC_PCIE_RESET_LO_TO_HI>;
    + aspeed,scu = <&syscon>;
    + pcie-device = "bmc";
    + memory = <0x9f000000 0x01000000>;
    + };
    diff --git a/MAINTAINERS b/MAINTAINERS
    index 75057ab..48d0ffd 100644
    --- a/MAINTAINERS
    +++ b/MAINTAINERS
    @@ -2744,6 +2744,12 @@ 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@linux.ibm.com>
    +L: linux-aspeed@lists.ozlabs.org (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@gmail.com>
    L: acpi4asus-user@lists.sourceforge.net
    --
    1.8.3.1
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