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[1/6] dt-bindings: misc: Add Aspeed XDMA engine binding documentation

Message ID 1551735420-16202-2-git-send-email-eajames@linux.ibm.com
State Changes Requested, archived
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Series drivers/misc: Add XDMA engine driver | expand

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Commit Message

Eddie James March 4, 2019, 9:36 p.m. UTC 
Document the bindings.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
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 .../devicetree/bindings/misc/aspeed,xdma.txt       | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/misc/aspeed,xdma.txt
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Patch

diff --git a/Documentation/devicetree/bindings/misc/aspeed,xdma.txt b/Documentation/devicetree/bindings/misc/aspeed,xdma.txt
new file mode 100644
index 0000000..85e82ea
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+++ b/Documentation/devicetree/bindings/misc/aspeed,xdma.txt
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+* Device tree bindings for the Aspeed XDMA engine
+
+The XDMA Engine embedded in the AST2500 SOC can perform automatic DMA
+operations over PCI between the AST2500 (acting as a BMC) and a host processor.
+
+Required properties:
+
+ - compatible		"aspeed,ast2500-xdma"
+ - reg			contains the offset and length of the memory region
+			assigned to the XDMA registers
+ - resets		reset specifier for the syscon reset associated with
+			the XDMA engine
+ - interrupts		the interrupt associated with the XDMA engine on this
+			platform
+
+Example:
+
+    xdma@1e6e7000 {
+        compatible = "aspeed,ast2500-xdma";
+        reg = <0x1e6e7000 0x100>;
+        resets = <&syscon ASPEED_RESET_XDMA>;
+        interrupts = <6>;
+    };