From patchwork Wed May 27 18:35:44 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Moritz Fischer X-Patchwork-Id: 477243 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 8FAEC140323 for ; Thu, 28 May 2015 04:41:51 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753744AbbE0SlZ (ORCPT ); Wed, 27 May 2015 14:41:25 -0400 Received: from mail-pa0-f42.google.com ([209.85.220.42]:36061 "EHLO mail-pa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753109AbbE0SgD (ORCPT ); Wed, 27 May 2015 14:36:03 -0400 Received: by paza2 with SMTP id a2so3943321paz.3 for ; Wed, 27 May 2015 11:36:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=U8N+iLt8OrEdtuDyl5aAHEAyKoPYyL31U0h0QrDBLD8=; b=gsKg0nSQ86ewB1nlp4CTcnbz36esbYxVfVqIV2OV1msN5CJZ5KNKW7Za1MaSIBA02P 1DKMFrQZ1WZXazJ3DaNymLO8ju/FxL9ieBuHIkedy+6bL/AzuBAWJmXR1dTQW/AE3NW3 MPZCTnZ3ZBdxxu1lbBqY9nCC33jw2rKZ1fUWUomLaOnIgS54NgwooalbEtg3WZ9fQBfq ZtMXi2nUBZrESz0cWWat4UMHqCXowAzS+XbwEu/3lNTKdIBxIvnDq2g9YiAQDFRwbMqq QWTkt2wsngaPHoOYUG4LiD1z+/0n7d1AuYg3p2wujf2i3ZXACxdIi9w9fOiB+ex/M9dm iIrw== X-Gm-Message-State: ALoCoQnjUHvA0tbdX/AKrnNZZGSeAENODfF3rz1I/UBZOvRLlM+RaKShZZIN73C4wNi9TQfXfTNp X-Received: by 10.70.49.168 with SMTP id v8mr61714408pdn.24.1432751762892; Wed, 27 May 2015 11:36:02 -0700 (PDT) Received: from fenrir.amer.corp.natinst.com (209-234-137-234.static.twtelecom.net. [209.234.137.234]) by mx.google.com with ESMTPSA id jz10sm16894894pbc.48.2015.05.27.11.36.00 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 27 May 2015 11:36:01 -0700 (PDT) From: Moritz Fischer To: jassisinghbrar@gmail.com Cc: linux-kernel@vger.kernel.org, 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, akpm@linux-foundation.org, gregkh@linuxfoundation.org, mchehab@osg.samsung.com, arnd@arndb.de, joe@perches.com, jingoohan1@gmail.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Moritz Fischer Subject: [PATCHv2 1/2] dts: Adding docs for Xilinx LogiCORE IP mailbox driver. Date: Wed, 27 May 2015 11:35:44 -0700 Message-Id: <1432751745-17473-2-git-send-email-moritz.fischer@ettus.com> X-Mailer: git-send-email 2.4.1 In-Reply-To: <1432751745-17473-1-git-send-email-moritz.fischer@ettus.com> References: <1432751745-17473-1-git-send-email-moritz.fischer@ettus.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Changes from v1: - Added common clock framework support Changes from v0: - Fixed example bindings Signed-off-by: Moritz Fischer --- .../bindings/mailbox/xilinx-mailbox.txt | 44 ++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt b/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt new file mode 100644 index 0000000..50d0e5c --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/xilinx-mailbox.txt @@ -0,0 +1,44 @@ +Xilinx Mailbox Driver +===================== + +Required properties: +- compatible : "xlnx,mailbox-2.1". +- reg : physical base address of the mailbox and length of + memory mapped region. +- #mbox-cells : Common mailbox binding property to identify the number + of cells required for the mailbox specifier. Should be 1. +- clocks : phandle to clock provider +- clock-names : must be 'mbox' + +Optional properties: +- interrupt-parent : interrupt source phandle. +- interrupts : interrupt number. The interrupt specifier format + depends on the interrupt controller parent. + +Example: + mbox: mailbox@40400000 { + compatible = "xlnx,axi-mailbox-2.1"; + reg = <0x40400000 0x3c>; + interrupt-parent = <&intc>; + interrupts = <5>; + #mbox-cells = <1>; + clocks = <&clkc 15>; + clock-names = "mbox"; + }; + +Mailbox client +=============== +"mboxes" and the optional "mbox-names" (please see +Documentation/devicetree/bindings/mailbox/mailbox.txt for details). Each value +of the mboxes property should contain a phandle to the mailbox controller +device node and second argument is the channel index. It must be 0 (hardware +support only one channel). The equivalent "mbox-names" property value can be +used to give a name to the communication channel to be used by the client user. + +Example: + mclient0: mclient0@400 { + compatible = "client-1.0"; + reg = <0x400 0x10>; + mbox-names = "mbox"; + mboxes = <&mbox 0>; + };