Merge branch 'topic/uniphier' into for-linus
This commit is contained in:
25
Documentation/devicetree/bindings/dma/uniphier-mio-dmac.txt
Normal file
25
Documentation/devicetree/bindings/dma/uniphier-mio-dmac.txt
Normal file
@@ -0,0 +1,25 @@
|
||||
UniPhier Media IO DMA controller
|
||||
|
||||
This works as an external DMA engine for SD/eMMC controllers etc.
|
||||
found in UniPhier LD4, Pro4, sLD8 SoCs.
|
||||
|
||||
Required properties:
|
||||
- compatible: should be "socionext,uniphier-mio-dmac".
|
||||
- reg: offset and length of the register set for the device.
|
||||
- interrupts: a list of interrupt specifiers associated with the DMA channels.
|
||||
- clocks: a single clock specifier.
|
||||
- #dma-cells: should be <1>. The single cell represents the channel index.
|
||||
|
||||
Example:
|
||||
dmac: dma-controller@5a000000 {
|
||||
compatible = "socionext,uniphier-mio-dmac";
|
||||
reg = <0x5a000000 0x1000>;
|
||||
interrupts = <0 68 4>, <0 68 4>, <0 69 4>, <0 70 4>,
|
||||
<0 71 4>, <0 72 4>, <0 73 4>, <0 74 4>;
|
||||
clocks = <&mio_clk 7>;
|
||||
#dma-cells = <1>;
|
||||
};
|
||||
|
||||
Note:
|
||||
In the example above, "interrupts = <0 68 4>, <0 68 4>, ..." is not a typo.
|
||||
The first two channels share a single interrupt line.
|
Reference in New Issue
Block a user