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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 B629AC0650F for ; Tue, 30 Jul 2019 09:45:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 96DE020679 for ; Tue, 30 Jul 2019 09:45:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731946AbfG3Jpm (ORCPT ); Tue, 30 Jul 2019 05:45:42 -0400 Received: from inva020.nxp.com ([92.121.34.13]:33986 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731878AbfG3JpY (ORCPT ); Tue, 30 Jul 2019 05:45:24 -0400 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" Cc: andrew@lunn.ch, Rob Herring , Li Yang , alexandru.marginean@nxp.com, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org 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 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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. -- 2.17.1