From patchwork Sun Mar 27 18:06:06 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: 8676211 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D7FC6C0553 for ; Sun, 27 Mar 2016 18:08:50 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id F053F2024C for ; Sun, 27 Mar 2016 18:08:49 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [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 0F4202021B for ; Sun, 27 Mar 2016 18:08:49 +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 1akF5y-0008PI-VR; 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Sun, 27 Mar 2016 18:06:17 +0000 Received: from unknown-38-66.xilinx.com ([149.199.38.66] helo=xsj-pvapsmtp01) by xsj-pvapsmtpgw01 with esmtp (Exim 4.63) (envelope-from ) id 1akF4q-0004dv-D8; Sun, 27 Mar 2016 11:06:16 -0700 Received: from [127.0.0.1] (helo=localhost) by xsj-pvapsmtp01 with smtp (Exim 4.63) (envelope-from ) id 1akF4q-0007to-97; Sun, 27 Mar 2016 11:06:16 -0700 Received: from xsj-pvapsmtp01 (smtp3.xilinx.com [149.199.38.66]) by xsj-smtp-dlp2.xlnx.xilinx.com (8.13.8/8.13.1) with ESMTP id u2RI6B6h017039; Sun, 27 Mar 2016 11:06:12 -0700 Received: from [172.23.64.207] (helo=xhd-lin64re117.xilinx.com) by xsj-pvapsmtp01 with esmtp (Exim 4.63) (envelope-from ) id 1akF4l-0007tQ-JX; Sun, 27 Mar 2016 11:06:11 -0700 Received: by xhd-lin64re117.xilinx.com (Postfix, from userid 13614) id CA11420906; Sun, 27 Mar 2016 23:36:10 +0530 (IST) From: Kedareswara rao Appana To: , , , , , , , , , , , , , , , Subject: [PATCH v2 5/6] Documentation: DT: vdma: update binding doc for AXI CDMA Date: Sun, 27 Mar 2016 23:36:06 +0530 Message-ID: <1459101966-9932-2-git-send-email-appanad@xilinx.com> X-Mailer: git-send-email 2.1.2 In-Reply-To: <1459101966-9932-1-git-send-email-appanad@xilinx.com> References: <1459101966-9932-1-git-send-email-appanad@xilinx.com> X-RCIS-Action: ALLOW X-TM-AS-Product-Ver: IMSS-7.1.0.1224-8.0.0.1202-22222.005 X-TM-AS-User-Approved-Sender: Yes;Yes X-EOPAttributedMessage: 0 X-Forefront-Antispam-Report: CIP:149.199.60.83; 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SRVR:SN1NAM02HT087; BCL:0; PCL:0; RULEID:; SRVR:SN1NAM02HT087; X-Forefront-PRVS: 089473E5FE X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 27 Mar 2016 18:06:17.4001 (UTC) X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c; Ip=[149.199.60.83]; Helo=[xsj-pvapsmtpgw01] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1NAM02HT087 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160327_110640_205841_CCCF8ED6 X-CRM114-Status: GOOD ( 10.89 ) 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, devicetree@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=-5.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, 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 CDMA. Signed-off-by: Kedareswara rao Appana --- ---> Modified commit message as suggested by Vinod. ---> Moved the patch to forward in the series as suggested by vinod. .../devicetree/bindings/dma/xilinx/xilinx_vdma.txt | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt b/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt index 5841421..2b0c12b 100644 --- a/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt +++ b/Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt @@ -8,8 +8,12 @@ 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. +Xilinx AXI CDMA engine, it does transfers between memory-mapped source +address and a memory-mapped destination address. + Required properties: -- compatible: Should be "xlnx,axi-vdma-1.00.a" or "xlnx,axi-dma-1.00.a" +- compatible: Should be "xlnx,axi-vdma-1.00.a" or "xlnx,axi-dma-1.00.a" or + "xlnx,axi-cdma-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. @@ -80,6 +84,18 @@ axi_dma_0: axidma@40400000 { } ; } ; +axi_cdma_0: axicdma@7e200000 { + compatible = "xlnx,axi-cdma-1.00.a"; + #dma-cells = <1>; + reg = < 0x7e200000 0x10000 >; + xlnx,addrwidth = <0x20>; + dma-channel@7e200000 { + compatible = "xlnx,axi-dma-mm2s-channel"; + interrupts = < 0 55 4 >; + xlnx,datawidth = <0x40>; + } ; +} ; + * DMA client Required properties: