From patchwork Tue Mar 15 17:23:09 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Appana Durga Kedareswara rao X-Patchwork-Id: 8590751 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 045BF9F6E1 for ; Tue, 15 Mar 2016 17:34:20 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 356A120204 for ; Tue, 15 Mar 2016 17:34:15 +0000 (UTC) Received: from bombadil.infradead.org (unknown [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 330FF2021B for ; Tue, 15 Mar 2016 17:34:14 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1afsi3-0001kc-6U; 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Tue, 15 Mar 2016 17:23:36 +0000 Received: from unknown-38-66.xilinx.com ([149.199.38.66]:54537 helo=xsj-pvapsmtp01) by xsj-pvapsmtpgw02 with esmtp (Exim 4.63) (envelope-from ) id 1afsgx-0002wZ-Rx; Tue, 15 Mar 2016 10:23:35 -0700 Received: from [127.0.0.1] (helo=localhost) by xsj-pvapsmtp01 with smtp (Exim 4.63) (envelope-from ) id 1afsgx-0004Qy-Nj; Tue, 15 Mar 2016 10:23:35 -0700 Received: from xsj-pvapsmtp01 (mailman.xilinx.com [149.199.38.66]) by xsj-smtp-dlp1.xlnx.xilinx.com (8.13.8/8.13.1) with ESMTP id u2FHNQxO008636; Tue, 15 Mar 2016 10:23:26 -0700 Received: from [172.23.64.207] (helo=xhd-lin64re117.xilinx.com) by xsj-pvapsmtp01 with esmtp (Exim 4.63) (envelope-from ) id 1afsgo-0004OO-1q; Tue, 15 Mar 2016 10:23:26 -0700 Received: by xhd-lin64re117.xilinx.com (Postfix, from userid 13614) id 3DC39208FB; Tue, 15 Mar 2016 22:53:25 +0530 (IST) From: Kedareswara rao Appana To: , , , , , , , , Subject: [PATCH 4/7] dmaengine: xilinx_vdma: Add Support for Xilinx AXI Direct Memory Access Engine Date: Tue, 15 Mar 2016 22:53:09 +0530 Message-ID: <1458062592-27981-5-git-send-email-appanad@xilinx.com> X-Mailer: git-send-email 2.1.2 In-Reply-To: <1458062592-27981-1-git-send-email-appanad@xilinx.com> References: <1458062592-27981-1-git-send-email-appanad@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.0.0.1202-22194.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:149.199.60.100; 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RULEID:(601004)(2401047)(13023025)(5005006)(13024025)(13015025)(8121501046)(13018025)(13017025)(3002001)(10201501046); SRVR:SN1NAM02HT100; BCL:0; PCL:0; RULEID:; SRVR:SN1NAM02HT100; X-Forefront-PRVS: 08828D20BC X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Mar 2016 17:23:36.5164 (UTC) X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c; Ip=[149.199.60.100]; Helo=[xsj-pvapsmtpgw02] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1NAM02HT100 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160315_102402_961810_C24805CA X-CRM114-Status: GOOD ( 11.46 ) X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-3.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RDNS_NONE,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch updates the device-tree binding doc for adding support for AXI DMA. Signed-off-by: Kedareswara rao Appana --- .../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