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Re: [PATCH v4 1/2] Documentation: dt: Add Xilinx zynqmp dma device tree binding documentation

From Lars-Peter Clausen <lars@metafoo.de>
Newsgroups linux.kernel
Subject Re: [PATCH v4 1/2] Documentation: dt: Add Xilinx zynqmp dma device tree binding documentation
Date 2015-08-24 15:50 +0200
Message-ID <q10il-T2-1@gated-at.bofh.it> (permalink)
References <pZr3k-4jD-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 08/06/2015 05:19 AM, Punnaiah Choudary Kalluri wrote:
[...]
> +Optional properties:
> +- xlnx,include-sg: Indicates the controller to operate in simple or scatter
> +		   gather dma mode
> +- xlnx,ratectrl: Scheduling interval in terms of clock cycles for
> +		 source AXI transaction
> +- xlnx,overfetch: Tells whether the channel is allowed to over fetch the data
> +- xlnx,src-issue: Number of AXI outstanding transactions on source side
> +- xlnx,desc-axi-cohrnt: Tells whether the AXI transactions generated for the
> +			descriptor read are marked Non-coherent
> +- xlnx,src-axi-cohrnt: Tells whether the AXI transactions generated for the
> +			source descriptor payload are marked Non-coherent
> +- xlnx,dst-axi-cohrnt: Tells whether the AXI transactions generated for the
> +			dst descriptor payload are marked Non-coherent
> +- xlnx,desc-axi-qos: AXI QOS bits to be used for descriptor fetch
> +- xlnx,src-axi-qos: AXI QOS bits to be used for data read
> +- xlnx,dst-axi-qos: AXI QOS bits to be used for data write
> +- xlnx,desc-axi-cache: AXI cache bits to be used for descriptor fetch.
> +- xlnx,desc-axi-cache: AXI cache bits to be used for data read
> +- xlnx,desc-axi-cache: AXI cache bits to be used for data write
> +- xlnx,src-burst-len: AXI length for data read. Support only power of 2 values
> +		      i.e 1,2,4,8 and 16
> +- xlnx,dst-burst-len: AXI length for data write. Support only power of 2 values
> +		      i.e 1,2,4,8 and 16

None of these really belong into the devicetree. This is all runtime
configuration data.

- Lars
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Re: [PATCH v4 1/2] Documentation: dt: Add Xilinx zynqmp dma device  tree binding documentation Lars-Peter Clausen <lars@metafoo.de> - 2015-08-24 15:50 +0200
  Re: [PATCH v4 1/2] Documentation: dt: Add Xilinx zynqmp dma device  tree binding documentation punnaiah choudary kalluri <punnaia@xilinx.com> - 2015-08-24 20:40 +0200

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