From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A3907FC6196 for ; Wed, 6 Nov 2019 23:40:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 74C51207FA for ; Wed, 6 Nov 2019 23:40:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573083630; bh=aWpquujQswob80glZ0nqffhkfBSbv/6/PkoNQ+HYCnI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=UAaE1aOPh9DtNoycSsjSISrFSbiy8tW5Y9NOcCyArmqWwhsRy7y3X9w1ZSBtXDkPx pZfc6AfSaJuc/Ho3+FmZfTM20V9RlHsTn166qxoBrVAz/lI5xzCynW+cCmDqcu0Pq6 ZIazzpOFsVQoCN/e67sXwVwTlkMTOzJADN7aFx4c= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732834AbfKFXk3 (ORCPT ); Wed, 6 Nov 2019 18:40:29 -0500 Received: from mail-oi1-f193.google.com ([209.85.167.193]:46950 "EHLO mail-oi1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727316AbfKFXk3 (ORCPT ); Wed, 6 Nov 2019 18:40:29 -0500 Received: by mail-oi1-f193.google.com with SMTP id n14so275203oie.13; Wed, 06 Nov 2019 15:40:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=F9+XxF3bme0TDxNV87CvWxfYp74g7+cBn1OYi++I3PY=; b=Me42EjJ69VCvkEPHBlga6AUg2dwgkqMLgU9yIIydr9Jt7EWAGYrx4dmtuJmhw66PWN hlYt59hwphwkidieyUC+IRU2xyC4uDrjKNkwDE1544wVaTEQrW3Pf+eOta3k/rmNi+y1 WWTdmMJERqCuaXi892Cd6SDDFpXhmZWIDRo93/zOEzOTm4ZbezSAuzZJMM452Hyr5g9d DLvjenouM/1Ftt2uCczyaGpbpzJCV7cyQE2cmi1l25Rcao7Y0U+HClfZpwXRVoZnw9w8 reLTaRQ5yqTaXazFU5dR+gA4y6QYXJiUs8rkDTSaQUNPld5ru56GYxMD12MfAo4anCgU Hbbg== X-Gm-Message-State: APjAAAUhyiyq5FhAEUWP+gZG12P9ZbYFynBv9xB1GysY375IItAG45Oy Qx4u7lSwEqbokZR4g7F7DQ== X-Google-Smtp-Source: APXvYqySo4f8qKaS3Uh1xjvS4bwqGL+HLtxodI5d2sqmKN62Uk9p/GW8ZMzcEf/idpRcKBR9Z7JIMA== X-Received: by 2002:a05:6808:3b1:: with SMTP id n17mr565821oie.50.1573083627798; Wed, 06 Nov 2019 15:40:27 -0800 (PST) Received: from localhost (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.gmail.com with ESMTPSA id u4sm140222otb.35.2019.11.06.15.40.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Nov 2019 15:40:26 -0800 (PST) Date: Wed, 6 Nov 2019 17:40:20 -0600 From: Rob Herring To: Chao Hao Cc: Joerg Roedel , Matthias Brugger , iommu@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, wsd_upstream@mediatek.com, Jun Yan , Cui Zhang , Guangming Cao , Yong Wu , Anan Sun , Miles Chen , Chao Hao Subject: Re: [RESEND,PATCH 01/13] dt-bindings: mediatek: Add bindings for MT6779 Message-ID: <20191106234020.GA19463@bogus> References: <20191104115238.2394-1-chao.hao@mediatek.com> <20191104115238.2394-2-chao.hao@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191104115238.2394-2-chao.hao@mediatek.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 4 Nov 2019 19:52:26 +0800, Chao Hao wrote: > This patch adds description for MT6779 IOMMU. > > MT6779 has two iommus, they are MM_IOMMU and APU_IOMMU which > use ARM Short-Descriptor translation format. > > The MT6779 IOMMU hardware diagram is as below, it is only a brief > diagram about iommu, it don't focus on the part of smi_larb, so > I don't describe the smi_larb detailedly. > > EMI > | > -------------------------------------- > | | > MM_IOMMU APU_IOMMU > | | > SMI_COMMOM----------- APU_BUS > | | | > SMI_LARB(0~11) SMI_LARB12(FAKE) SMI_LARB13(FAKE) > | | | > | | -------------- > | | | | | > Multimedia engine CCU VPU MDLA EMDA > > All the connections are hardware fixed, software can not adjust it. > > >From the diagram above, MM_IOMMU provides mapping for multimedia engine, > but CCU is connected with smi_common directly, we can take them as larb12. > APU_IOMMU provides mapping for APU engine, we can take them larb13. > Larb12 and Larb13 are fake larbs. > > Signed-off-by: Chao Hao > --- > .../bindings/iommu/mediatek,iommu.txt | 2 + > include/dt-bindings/memory/mt6779-larb-port.h | 217 ++++++++++++++++++ > 2 files changed, 219 insertions(+) > create mode 100644 include/dt-bindings/memory/mt6779-larb-port.h > Reviewed-by: Rob Herring