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[PATCH 4/7] dmaengine: xilinx_vdma: Add Support for Xilinx AXI Direct Memory Access Engine

From Kedareswara rao Appana <appana.durga.rao@xilinx.com>
Newsgroups linux.kernel
Subject [PATCH 4/7] dmaengine: xilinx_vdma: Add Support for Xilinx AXI Direct Memory Access Engine
Date 2016-03-15 18:30 +0100
Message-ID <rd0X7-566-1@gated-at.bofh.it> (permalink)
References <rd0X7-566-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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

Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
---
 .../devicetree/bindings/dma/xilinx/xilinx_vdma.txt | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt b/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt
index e4c4d47..3d134a5 100644
--- a/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt
+++ b/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt
@@ -3,8 +3,13 @@ It can be configured to have one channel or two channels. If configured
 as two channels, one is to transmit to the video device and another is
 to receive from the video device.
 
+Xilinx AXI DMA engine, it does transfers between memory and AXI4 stream
+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.
+
 Required properties:
-- compatible: Should be "xlnx,axi-vdma-1.00.a"
+- compatible: Should be "xlnx,axi-vdma-1.00.a" or "xlnx,axi-dma-1.00.a"
 - #dma-cells: Should be <1>, see "dmas" property below
 - reg: Should contain VDMA registers location and length.
 - xlnx,num-fstores: Should be the number of framebuffers as configured in h/w.
@@ -55,6 +60,21 @@ axi_vdma_0: axivdma@40030000 {
 	} ;
 } ;
 
+axi_dma_0: axidma@40400000 {
+	compatible = "xlnx,axi-dma-1.00.a";
+	#dma_cells = <1>;
+	reg = < 0x40400000 0x10000 >;
+	dma-channel@40400000 {
+		compatible = "xlnx,axi-vdma-mm2s-channel";
+		interrupts = < 0 59 4 >;
+		xlnx,datawidth = <0x40>;
+	} ;
+	dma-channel@40400030 {
+		compatible = "xlnx,axi-vdma-s2mm-channel";
+		interrupts = < 0 58 4 >;
+		xlnx,datawidth = <0x40>;
+	} ;
+} ;
 
 * DMA client
 
-- 
2.1.2

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[PATCH 4/7] dmaengine: xilinx_vdma: Add Support for Xilinx AXI Direct Memory Access Engine Kedareswara rao Appana <appana.durga.rao@xilinx.com> - 2016-03-15 18:30 +0100
  Re: [PATCH 4/7] dmaengine: xilinx_vdma: Add Support for Xilinx AXI  Direct Memory Access Engine Vinod Koul <vinod.koul@intel.com> - 2016-03-16 04:20 +0100
    RE: [PATCH 4/7] dmaengine: xilinx_vdma: Add Support for Xilinx AXI  Direct Memory Access Engine Appana Durga Kedareswara Rao <appana.durga.rao@xilinx.com> - 2016-03-16 07:20 +0100

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