From patchwork Thu Jun 20 21:06:37 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Fernandes, Joel A" X-Patchwork-Id: 2758591 Return-Path: X-Original-To: patchwork-linux-mmc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 6983F9F472 for ; Thu, 20 Jun 2013 21:11:40 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 048A6202CC for ; Thu, 20 Jun 2013 21:11:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1DE8E202EB for ; Thu, 20 Jun 2013 21:11:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965812Ab3FTVLO (ORCPT ); Thu, 20 Jun 2013 17:11:14 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:57156 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758085Ab3FTVHz (ORCPT ); Thu, 20 Jun 2013 17:07:55 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id r5KL6vUn016018; Thu, 20 Jun 2013 16:06:57 -0500 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id r5KL6v8x010681; Thu, 20 Jun 2013 16:06:57 -0500 Received: from dlelxv22.itg.ti.com (172.17.1.197) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.2.342.3; Thu, 20 Jun 2013 16:06:57 -0500 Received: from localhost.localdomain (lta0273324.am.dhcp.ti.com [128.247.106.216]) by dlelxv22.itg.ti.com (8.13.8/8.13.8) with ESMTP id r5KL6luM008775; Thu, 20 Jun 2013 16:06:57 -0500 From: Joel A Fernandes To: Tony Lindgren , Sekhar Nori , Matt Porter , Grant Likely , Rob Herring , Vinod Koul , Mark Brown , Benoit Cousson , Russell King , Rob Landley , Andrew Morton , Jason Kridner , Koen Kooi CC: Devicetree Discuss , Linux OMAP List , Linux ARM Kernel List , Linux DaVinci Kernel List , Linux Kernel Mailing List , Linux Documentation List , Linux MMC List , Linux SPI Devel List , Arnd Bergmann , Joel A Fernandes Subject: [PATCH v12 01/11] dmaengine: edma: Add TI EDMA device tree binding Date: Thu, 20 Jun 2013 16:06:37 -0500 Message-ID: <1371762407-24544-2-git-send-email-joelagnel@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1371762407-24544-1-git-send-email-joelagnel@ti.com> References: <1371762407-24544-1-git-send-email-joelagnel@ti.com> MIME-Version: 1.0 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Spam-Status: No, score=-8.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 From: Matt Porter The binding definition is based on the generic DMA controller binding. Joel: * Droped reserved and queue DT entries from Documentation for now from the original patch series (v10) * Included properties in Documentation and clarified DMA properties (V11) * Made ti,hwmod option * Clarified DMA entries Acked-by: Arnd Bergmann Signed-off-by: Matt Porter Signed-off-by: Joel A Fernandes --- Documentation/devicetree/bindings/dma/ti-edma.txt | 34 +++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/ti-edma.txt diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt new file mode 100644 index 0000000..9fbbdb7 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/ti-edma.txt @@ -0,0 +1,34 @@ +TI EDMA + +Required properties: +- compatible : "ti,edma3" +- ti,edma-regions: Number of regions +- ti,edma-slots: Number of slots +- #dma-cells: Should be set to <1> + Clients should use a single channel number per DMA request. +- dma-channels: Specify total DMA channels per CC +- reg: Memory map for accessing module +- interrupt-parent: Interrupt controller the interrupt is routed through +- interrupts: Exactly 3 interrupts need to be specified in the order: + 1. Transfer completion interrupt. + 2. Memory protection interrupt. + 3. Error interrupt. +Optional properties: +- ti,hwmods: Name of the hwmods associated to the EDMA +- ti,edma-xbar-event-map: Crossbar event to channel map + +Example: + +edma: edma@49000000 { + reg = <0x49000000 0x10000>; + interrupt-parent = <&intc>; + interrupts = <12 13 14>; + compatible = "ti,edma3"; + ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2"; + #dma-cells = <1>; + dma-channels = <64>; + ti,edma-regions = <4>; + ti,edma-slots = <256>; + ti,edma-xbar-event-map = <1 12 + 2 13>; +};