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

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

Signed-off-by: Kedareswara rao Appana <appanad@xxxxxxxxxx>
---
 .../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

--
To unsubscribe from this list: send the line "unsubscribe dmaengine" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Kernel]     [Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [Linux for Samsung SOC]     [eCos]     [Linux PCI]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [Linux MIPS]     [Yosemite Campsites]

  Powered by Linux