diff options
| author | Jassi Brar <jaswinder.singh@linaro.org> | 2019-10-14 22:31:57 -0500 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2019-10-18 13:32:18 +0530 |
| commit | 3708f89b33cc2aef5e121221704c1f833ca712c4 (patch) | |
| tree | 32fb7d8b378ba74e645ccfc5f05bf47013dc278d /Documentation | |
| parent | 6c3214e698e49da9b694cdda86332527260cf119 (diff) | |
dt-bindings: milbeaut-m10v-xdmac: Add Socionext Milbeaut XDMAC bindings
Document the devicetree bindings for Socionext Milbeaut XDMAC
controller. Controller only supports Mem->Mem transfers. Number
of physical channels are determined by the number of irqs registered.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Link: https://lore.kernel.org/r/20191015033157.14656-1-jassisinghbrar@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/milbeaut-m10v-xdmac.txt | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/milbeaut-m10v-xdmac.txt b/Documentation/devicetree/bindings/dma/milbeaut-m10v-xdmac.txt new file mode 100644 index 000000000000..305791804062 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/milbeaut-m10v-xdmac.txt @@ -0,0 +1,24 @@ +* Milbeaut AXI DMA Controller + +Milbeaut AXI DMA controller has only memory to memory transfer capability. + +* DMA controller + +Required property: +- compatible: Should be "socionext,milbeaut-m10v-xdmac" +- reg: Should contain DMA registers location and length. +- interrupts: Should contain all of the per-channel DMA interrupts. + Number of channels is configurable - 2, 4 or 8, so + the number of interrupts specified should be {2,4,8}. +- #dma-cells: Should be 1. + +Example: + xdmac0: dma-controller@1c250000 { + compatible = "socionext,milbeaut-m10v-xdmac"; + reg = <0x1c250000 0x1000>; + interrupts = <0 17 0x4>, + <0 18 0x4>, + <0 19 0x4>, + <0 20 0x4>; + #dma-cells = <1>; + }; |