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Documentation: DT: vdma: update binding doc for AXI CDMA

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This patch updates the device-tree binding doc for
adding support for AXI CDMA.

Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Kedareswara rao Appana 2016-04-07 10:59:44 +05:30 committed by Vinod Koul
parent c0bba3a99f
commit 3843dc282e
1 changed files with 5 additions and 1 deletions
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6
Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt
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@ -8,8 +8,12 @@ target devices. It can be configured to have one channel or two channels.
If configured as two channels, one is to transmit to the device and another
is to receive from the device.
Xilinx AXI CDMA engine, it does transfers between memory-mapped source
address and a memory-mapped destination address.
Required properties:
- compatible: Should be "xlnx,axi-vdma-1.00.a" or "xlnx,axi-dma-1.00.a"
- compatible: Should be "xlnx,axi-vdma-1.00.a" or "xlnx,axi-dma-1.00.a" or
"xlnx,axi-cdma-1.00.a""
- #dma-cells: Should be <1>, see "dmas" property below
- reg: Should contain VDMA registers location and length.
- xlnx,addrwidth: Should be the vdma addressing size in bits(ex: 32 bits).