From patchwork Tue Jul 30 09:45:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Manoil X-Patchwork-Id: 11065429 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id DDBF913AC for ; Tue, 30 Jul 2019 09:46:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CC99220121 for ; Tue, 30 Jul 2019 09:46:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C0A6A286C7; Tue, 30 Jul 2019 09:46:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 648C120121 for ; Tue, 30 Jul 2019 09:46:34 +0000 (UTC) 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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: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=NpYRp9AcX9cRAGHP88fngGnyF0hj1VMpxSHLnXjyMPU=; b=ghqf0iPQkoXpahDaXdKI44TN0Y pteFpOehXulblW3d30t2b/ijLLBg3PxaREQYM7aCp+qZ6M/VVELZjt5qH8N/gklVhw4NkM+2SSQnq seK2G4u2CdAGjOJFa0msH19diHsukXr9pKvqyNhnF9wS8tYiCTjJpAxCMrKmvhDmt4+ECb3OXIwhy zULN7K0p/pOpFejZaI2gTeQgvgODbckTRTK7Wx+GUj4eEeFRnOjUGqHI5zyh2VhnOoaLqNIveBnvq 2AzHQFEH7r9Mfz19+4WLQHoSt/k6+yriGNlexte/g2faTYkIy1hx8D2BkTpuTxnTqZVS5qupcyaiL H71ojK5w==; 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 1hsOiH-0008QQ-Iq; Tue, 30 Jul 2019 09:46:33 +0000 Received: from inva020.nxp.com ([92.121.34.13]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hsOhA-0007Tp-5d for linux-arm-kernel@lists.infradead.org; Tue, 30 Jul 2019 09:45:26 +0000 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id EDE141A0629; Tue, 30 Jul 2019 11:45:22 +0200 (CEST) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id E06551A062D; Tue, 30 Jul 2019 11:45:22 +0200 (CEST) Received: from fsr-ub1664-016.ea.freescale.net (fsr-ub1664-016.ea.freescale.net [10.171.71.216]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 7A71A204D6; Tue, 30 Jul 2019 11:45:22 +0200 (CEST) From: Claudiu Manoil To: "David S . Miller" Subject: [PATCH net-next v4 3/4] dt-bindings: net: fsl: enetc: Add bindings for the central MDIO PCIe endpoint Date: Tue, 30 Jul 2019 12:45:18 +0300 Message-Id: <1564479919-18835-4-git-send-email-claudiu.manoil@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1564479919-18835-1-git-send-email-claudiu.manoil@nxp.com> References: <1564479919-18835-1-git-send-email-claudiu.manoil@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190730_024524_347013_C7064CDE X-CRM114-Status: UNSURE ( 8.89 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: andrew@lunn.ch, devicetree@vger.kernel.org, netdev@vger.kernel.org, alexandru.marginean@nxp.com, linux-kernel@vger.kernel.org, Li Yang , Rob Herring , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The on-chip PCIe root complex that integrates the ENETC ethernet controllers also integrates a PCIe endpoint for the MDIO controller providing for centralized control of the ENETC mdio bus. Add bindings for this "central" MDIO Integrated PCIe Endpoint. Signed-off-by: Claudiu Manoil Reviewed-by: Andrew Lunn --- v1 - none v2 - none v3 - fixed spelling (commit message mostly) v4 - none .../devicetree/bindings/net/fsl-enetc.txt | 42 +++++++++++++++++-- 1 file changed, 39 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/net/fsl-enetc.txt b/Documentation/devicetree/bindings/net/fsl-enetc.txt index 25fc687419db..b7034ccbc1bd 100644 --- a/Documentation/devicetree/bindings/net/fsl-enetc.txt +++ b/Documentation/devicetree/bindings/net/fsl-enetc.txt @@ -11,7 +11,9 @@ Required properties: to parent node bindings. - compatible : Should be "fsl,enetc". -1) The ENETC external port is connected to a MDIO configurable phy: +1. The ENETC external port is connected to a MDIO configurable phy + +1.1. Using the local ENETC Port MDIO interface In this case, the ENETC node should include a "mdio" sub-node that in turn should contain the "ethernet-phy" node describing the @@ -47,8 +49,42 @@ Example: }; }; -2) The ENETC port is an internal port or has a fixed-link external -connection: +1.2. Using the central MDIO PCIe endpoint device + +In this case, the mdio node should be defined as another PCIe +endpoint node, at the same level with the ENETC port nodes. + +Required properties: + +- reg : Specifies PCIe Device Number and Function + Number of the ENETC endpoint device, according + to parent node bindings. +- compatible : Should be "fsl,enetc-mdio". + +The remaining required mdio bus properties are standard, their bindings +already defined in Documentation/devicetree/bindings/net/mdio.txt. + +Example: + + ethernet@0,0 { + compatible = "fsl,enetc"; + reg = <0x000000 0 0 0 0>; + phy-handle = <&sgmii_phy0>; + phy-connection-type = "sgmii"; + }; + + mdio@0,3 { + compatible = "fsl,enetc-mdio"; + reg = <0x000300 0 0 0 0>; + #address-cells = <1>; + #size-cells = <0>; + sgmii_phy0: ethernet-phy@2 { + reg = <0x2>; + }; + }; + +2. The ENETC port is an internal port or has a fixed-link external +connection In this case, the ENETC port node defines a fixed link connection, as specified by Documentation/devicetree/bindings/net/fixed-link.txt.