From patchwork Thu Sep 5 06:19:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pi-Hsun Shih X-Patchwork-Id: 11132191 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 49FEF112C for ; Thu, 5 Sep 2019 06:20:32 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 271F92145D for ; Thu, 5 Sep 2019 06:20:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="jgu4+ekd"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="S9vJ63v0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 271F92145D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=chromium.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=CuPs3KW5GsE55wRxSIzE57WBtCdK8tCNW94A4e+GqcM=; b=jgu4+ekdgp1B3k IUkIfdvtsJ73cXfdaSczYoEYevMBJFYDcHtY1jjJQbGqaVIbKwepQ+14cImB+wXBGLLrT7cwrgy64 pIxXLt/mzV/JGs+YtZP9YXAD5s3k6pwf1cF4Gr/mriKmsGWAQv0HCypKIK9FK6ZTDHBoSI42z+82b 2M5+rsGUDdVPGS2IB2Rzs+BavmbrLtdVKxx8mK1+4mE536bWmUS1RSJSzIu+6QHt6o3EMOOYjmy6N oJIdEQW0tUYJe631FO9+Smwp6I9Q3k5T2MhNQwml9YJUcgyPD+nFX9xp00XHIPw+lW99eLolr0aTR Rc56imYuAmWo83NbOGwg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i5l8B-0002a8-K9; Thu, 05 Sep 2019 06:20:31 +0000 Received: from mail-pf1-x442.google.com ([2607:f8b0:4864:20::442]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i5l7c-0000sX-HY for linux-mediatek@lists.infradead.org; Thu, 05 Sep 2019 06:19:58 +0000 Received: by mail-pf1-x442.google.com with SMTP id s12so1030371pfe.6 for ; Wed, 04 Sep 2019 23:19:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=eOou/Ud0sJZIJ3w0AOB8xY062SjRhhJ5K1s/AP/xaTc=; b=S9vJ63v0iIy8Jh4yKByDDuNyqPHdPhOEfaPBkj+7/MMDM44zSp5bRqCVFV82gslUPy CjKg1Z8NZHVn81a2lj3jrJQ5i7+oPiJUXPBEWeVSFzIZEF48Sr9F1baOrsPwAtfCMlpf NOtIg7xZiSjOUyyjkCy6U98UeGeYoyDI8EEE4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=eOou/Ud0sJZIJ3w0AOB8xY062SjRhhJ5K1s/AP/xaTc=; b=C38HGNbQhUFGpAzQFC2lbsePJ6fIZtTqZqxImqMvoDuwfHU8rfSjf1DjEVPrErVVPE mpbqQEBPO+KC0EHKHW5TefZH4hu+lUfNcUvtwMlwewZsAqrtbdIShC14OOujtSHzcoJz 3bsIYQRLDCseSzo1LtZlvshrpNw8m5NmHhQe+W8H8Qk3/IrsB9RxnePWtYAiIdeMMvdM x5YwdBgU216PlhLc5bL8JIVnDf1SnaIEHG2C11OKi97v9DtzGf7ebgGSjg2HqCs3iKv2 QIlQvNxrH+oRSwft+e14lYTrol1DtLjqwdwrxIT8c42WrZaD2NW+D9LehI8lojWqt/f/ Ty/g== X-Gm-Message-State: APjAAAWouQpU9D8t8C3SQzkpilXD6/vKqQjmnr328HLmlvfuL05Q/Qt+ H6WfIeDfJnJxrhMWn5A7oIyYIg== X-Google-Smtp-Source: APXvYqzS3/CTlFwcE72Yz2aQEiu4FXUp+BwnMqGXCJpYKZNTJeQb7nblnWkoSLISnNjodE2+jVwYwg== X-Received: by 2002:a62:ce8a:: with SMTP id y132mr1821500pfg.240.1567664396084; Wed, 04 Sep 2019 23:19:56 -0700 (PDT) Received: from pihsun-z840.tpe.corp.google.com ([2401:fa00:1:10:7889:7a43:f899:134c]) by smtp.googlemail.com with ESMTPSA id p14sm443445pfn.138.2019.09.04.23.19.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Sep 2019 23:19:55 -0700 (PDT) From: Pi-Hsun Shih To: Subject: [PATCH v19 1/4] dt-bindings: Add a binding for Mediatek SCP Date: Thu, 5 Sep 2019 14:19:34 +0800 Message-Id: <20190905061943.242729-2-pihsun@chromium.org> X-Mailer: git-send-email 2.23.0.187.g17f5b7556c-goog In-Reply-To: <20190905061943.242729-1-pihsun@chromium.org> References: <20190905061943.242729-1-pihsun@chromium.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190904_231956_618743_9136A444 X-CRM114-Status: GOOD ( 14.02 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:442 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ohad Ben-Cohen , Rob Herring , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , Erin Lo , "open list:REMOTE PROCESSOR REMOTEPROC SUBSYSTEM" , open list , Bjorn Andersson , Rob Herring , "moderated list:ARM/Mediatek SoC support" , Pi-Hsun Shih , Matthias Brugger , Mark Rutland , "moderated list:ARM/Mediatek SoC support" Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org From: Erin Lo Add a DT binding documentation of SCP for the MT8183 SoC from Mediatek. Signed-off-by: Erin Lo Signed-off-by: Pi-Hsun Shih Reviewed-by: Rob Herring --- Changes from v18, v17, v16, v15, v14, v13, v12, v11, v10, v9, v8, v7, v6: - No change. Changes from v5: - Remove dependency on CONFIG_RPMSG_MTK_SCP. Changes from v4: - Add detail of more properties. - Document the usage of mtk,rpmsg-name in subnode from the new design. Changes from v3: - No change. Changes from v2: - No change. I realized that for this patch series, there's no need to add anything under the mt8183-scp node (neither the mt8183-rpmsg or the cros-ec-rpmsg) for them to work, since mt8183-rpmsg is added directly as a rproc_subdev by code, and cros-ec-rpmsg is dynamically created by SCP name service. Changes from v1: - No change. --- .../bindings/remoteproc/mtk,scp.txt | 36 +++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/remoteproc/mtk,scp.txt diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.txt b/Documentation/devicetree/bindings/remoteproc/mtk,scp.txt new file mode 100644 index 000000000000..3ba668bab14b --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.txt @@ -0,0 +1,36 @@ +Mediatek SCP Bindings +---------------------------------------- + +This binding provides support for ARM Cortex M4 Co-processor found on some +Mediatek SoCs. + +Required properties: +- compatible Should be "mediatek,mt8183-scp" +- reg Should contain the address ranges for the two memory + regions, SRAM and CFG. +- reg-names Contains the corresponding names for the two memory + regions. These should be named "sram" & "cfg". +- clocks Clock for co-processor (See: ../clock/clock-bindings.txt) +- clock-names Contains the corresponding name for the clock. This + should be named "main". + +Subnodes +-------- + +Subnodes of the SCP represent rpmsg devices. The names of the devices are not +important. The properties of these nodes are defined by the individual bindings +for the rpmsg devices - but must contain the following property: + +- mtk,rpmsg-name Contains the name for the rpmsg device. Used to match + the subnode to rpmsg device announced by SCP. + +Example: + + scp: scp@10500000 { + compatible = "mediatek,mt8183-scp"; + reg = <0 0x10500000 0 0x80000>, + <0 0x105c0000 0 0x5000>; + reg-names = "sram", "cfg"; + clocks = <&infracfg CLK_INFRA_SCPSYS>; + clock-names = "main"; + };