[[PATCH] 4/9] Documentation-DTbindings-DMA-controller-of-AST2500

sudheer.v
2018-10-17T04:08:24Z

Signed-off-by: sudheer.v <open.sudheer@gmail.com>
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.../devicetree/bindings/dma/ast-uart-sdma.txt | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dma/ast-uart-sdma.txt

diff --git a/Documentation/devicetree/bindings/dma/ast-uart-sdma.txt b/Documentation/devicetree/bindings/dma/ast-uart-sdma.txt
new file mode 100644
index 0000000..e770df2
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@@ -0,0 +1,23 @@
+* Aspeed Direct Memory Access (DMA) Controller for AST25XX
+
+
+* DMA controller
+
+Required properties:
+- compatible : Should be "aspeed,ast-uart-sdma"
+- reg : Should contain SDMA registers location and length
+- interrupts : Should contain SDMA interrupt
+- dma-channels: number of DMA channels in DMA controller
+
+Optional properties:
+
+Example
+ ast_uart_sdma: uart_sdma@1e79e000 {
+ compatible = "aspeed,ast-uart-sdma";
+ reg = <0x1e79e000 0x400>;
+ interrupts = <50>;
+ #dma-cells = <1>;
+ dma-channels = <8>;
+ status = "disabled";
+ };
+
--
1.9.1