diff options
| author | Alexander Popov <a13xp0p0v88@gmail.com> | 2014-06-25 14:52:58 +0400 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2014-07-26 00:21:41 +0530 |
| commit | 9093e72b39402b25911a19a6851815a034e3f753 (patch) | |
| tree | 15a1409397e8906d892451eb6545a24e2fe470b2 /Documentation/devicetree/bindings/dma | |
| parent | 555859308723d8d5b828304f5eb9281143fd86b5 (diff) | |
dmaengine: mpc512x: add device tree binding document
Introduce a device tree binding document for the MPC512x DMA controller
Signed-off-by: Alexander Popov <a13xp0p0v88@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'Documentation/devicetree/bindings/dma')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/mpc512x-dma.txt | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/mpc512x-dma.txt b/Documentation/devicetree/bindings/dma/mpc512x-dma.txt new file mode 100644 index 000000000000..a6511df165c5 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/mpc512x-dma.txt @@ -0,0 +1,29 @@ +* 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. +- #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. |