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From: Kedareswara rao Appana <appana.durga.rao@xilinx.com>
To: <robh+dt@kernel.org>, <pawel.moll@arm.com>,
	<mark.rutland@arm.com>, <ijc+devicetree@hellion.org.uk>,
	<galak@codeaurora.org>, <michal.simek@xilinx.com>,
	<soren.brinkmann@xilinx.com>, <vinod.koul@intel.com>,
	<dan.j.williams@intel.com>, <appanad@xilinx.com>,
	<moritz.fischer@ettus.com>, <laurent.pinchart@ideasonboard.com>,
	<luis@debethencourt.com>, <svemula@xilinx.com>,
	<anirudh@xilinx.com>, <punnaia@xilinx.com>
Cc: <devicetree@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <dmaengine@vger.kernel.org>
Subject: [PATCH v10 1/2] Documentation: DT: dma: Add Xilinx zynqmp dma device tree binding documentation
Date: Wed, 1 Jun 2016 12:53:58 +0530	[thread overview]
Message-ID: <1464765839-29018-1-git-send-email-appanad@xilinx.com> (raw)

Device-tree binding documentation for Xilinx zynqmp dma engine
used in Zynq UltraScale+ MPSoC.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
---
Changes in v10:
- Added Rob Acked-by in the commit message.
Changs in v9:
- Removed include sg runtime configuration parameter
  from the binding doc as suggested by Lars.
Changes in v8:
- Removed all the software runtime configuration parameters
  from the binding doc as suggested by the Lars.
Changes in v7:
- None.
Changes in v6:
- Removed desc-axi-cache/dst-axi-cache/src-axi-cache properties
  from the binding doc as it allow broken combinations when dma-coherent
  is set as suggested by Rob.
- Fixed minor comments given by Rob related coding(lower case DT node name).
Changes in v5:
- Use dma-coherent flag for coherent transfers as suggested by rob.
- Removed unnecessary properties from binding doc as suggested by Rob.
Changes in v4:
- None
Changes in v3:
- None
Changes in v2:
- None.

 .../devicetree/bindings/dma/xilinx/zynqmp_dma.txt  | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/xilinx/zynqmp_dma.txt

diff --git a/Documentation/devicetree/bindings/dma/xilinx/zynqmp_dma.txt b/Documentation/devicetree/bindings/dma/xilinx/zynqmp_dma.txt
new file mode 100644
index 0000000..a784cdd
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/xilinx/zynqmp_dma.txt
@@ -0,0 +1,27 @@
+Xilinx ZynqMP DMA engine, it does support memory to memory transfers,
+memory to device and device to memory transfers. It also has flow
+control and rate control support for slave/peripheral dma access.
+
+Required properties:
+- compatible		: Should be "xlnx,zynqmp-dma-1.0"
+- reg			: Memory map for gdma/adma module access.
+- interrupt-parent	: Interrupt controller the interrupt is routed through
+- interrupts		: Should contain DMA channel interrupt.
+- xlnx,bus-width	: Axi buswidth in bits. Should contain 128 or 64
+- clock-names		: List of input clocks "clk_main", "clk_apb"
+			  (see clock bindings for details)
+
+Optional properties:
+- dma-coherent		: Present if dma operations are coherent.
+
+Example:
+++++++++
+fpd_dma_chan1: dma@fd500000 {
+	compatible = "xlnx,zynqmp-dma-1.0";
+	reg = <0x0 0xFD500000 0x1000>;
+	interrupt-parent = <&gic>;
+	interrupts = <0 117 4>;
+	clock-names = "clk_main", "clk_apb";
+	xlnx,bus-width = <128>;
+	dma-coherent;
+};
-- 
2.1.2

             reply	other threads:[~2016-06-01  7:24 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-06-01  7:23 Kedareswara rao Appana [this message]
2016-06-01  7:23 ` [PATCH v10 2/2] dmaengine: Add Xilinx zynqmp dma engine driver support Kedareswara rao Appana
2016-06-07  7:08   ` Vinod Koul
2016-06-08  7:40     ` Appana Durga Kedareswara Rao
2016-06-13  5:50       ` Vinod Koul
2016-06-14  8:18         ` Appana Durga Kedareswara Rao
2016-06-15 16:50           ` Vinod Koul
2016-06-16  7:19             ` Appana Durga Kedareswara Rao
2016-06-21 15:41               ` Vinod Koul
2016-06-21 16:19                 ` Punnaiah Choudary Kalluri
2016-06-21 16:38                   ` Vinod Koul
2016-06-21 17:29                     ` Punnaiah Choudary Kalluri
2016-06-28  4:14                       ` Vinod Koul
2016-06-29  3:59                         ` Punnaiah Choudary Kalluri

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