[PATCH v2 1/3] dmaengine: mpc512x: add device tree binding document
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From: Alexander Popov <hidden>
Date: 2014-06-18 10:48:10
Also in:
linux-devicetree
Subsystem:
dma generic offload engine subsystem, open firmware and flattened device tree bindings, the rest · Maintainers:
Vinod Koul, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2014-07-04 · Re: [PATCH v2 1/3] dmaengine: mpc512x: add device tree binding document · Mark Rutland <hidden>
- 2014-06-19 · Re: [PATCH v2 1/3] dmaengine: mpc512x: add device tree binding document · Alexander Popov <hidden>
- 2014-06-18 · Re: [PATCH v2 1/3] dmaengine: mpc512x: add device tree binding document · Alexander Popov <hidden>
- 2014-06-18 · Re: [PATCH v2 1/3] dmaengine: mpc512x: add device tree binding document · Mark Rutland <hidden>
Introduce a device tree binding document for the MPC512x DMA controller Signed-off-by: Alexander Popov <redacted> --- .../devicetree/bindings/dma/mpc512x-dma.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/mpc512x-dma.txt
diff --git a/Documentation/devicetree/bindings/dma/mpc512x-dma.txt b/Documentation/devicetree/bindings/dma/mpc512x-dma.txt
new file mode 100644
index 0000000..95e2ca0
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/mpc512x-dma.txt@@ -0,0 +1,31 @@ +* Freescale MPC512x and MPC8308 DMA Controller + +The DMA controller in Freescale MPC512x and MPC8308 SoCs can move +blocks of memory contents between memory and peripherals or +from memory to memory. + +Refer to "Generic DMA Controller and DMA request bindings" in +the dma/dma.txt file for a more detailed description of binding. + +Required properties: +- compatible: should be "fsl,mpc5121-dma" or "fsl,mpc8308-dma"; +- reg: should contain the DMA controller registers location and length; +- interrupt for the DMA controller: syntax of interrupt client node + is described in interrupt-controller/interrupts.txt file. + +Optional properties: +- #dma-cells: the length of the DMA specifier, must be <1>. + Each channel of this DMA controller has a peripheral request line, + the assignment is fixed in hardware. This one cell + in dmas property of a client device represents the channel number. + +Example: + + dma0: dma@14000 { + compatible = "fsl,mpc5121-dma"; + reg = <0x14000 0x1800>; + interrupts = <65 0x8>; + #dma-cells = <1>; + }; + +DMA clients must use the format described in dma/dma.txt file.
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