From patchwork Tue Jul 23 15:15:54 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Manoil X-Patchwork-Id: 1135736 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=nxp.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45tMWR6lvVz9sND for ; Wed, 24 Jul 2019 01:16:19 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729256AbfGWPQB (ORCPT ); Tue, 23 Jul 2019 11:16:01 -0400 Received: from inva020.nxp.com ([92.121.34.13]:50186 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726791AbfGWPQA (ORCPT ); Tue, 23 Jul 2019 11:16:00 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 19A9B1A026D; Tue, 23 Jul 2019 17:15:58 +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 0DEC41A0235; Tue, 23 Jul 2019 17:15:58 +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 A57EB205DD; Tue, 23 Jul 2019 17:15:57 +0200 (CEST) From: Claudiu Manoil To: "David S . Miller" Cc: 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 2/3] dt-bindings: net: fsl: enetc: Add bindings for the central MDIO PCIe endpoint Date: Tue, 23 Jul 2019 18:15:54 +0300 Message-Id: <1563894955-545-3-git-send-email-claudiu.manoil@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1563894955-545-1-git-send-email-claudiu.manoil@nxp.com> References: <1563894955-545-1-git-send-email-claudiu.manoil@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The on-chip PCIe root complex that integrates the ENETC ethernet controllers also integrates a PCIe enpoint for the MDIO controller provinding for cetralized control of the ENETC mdio bus. Add bindings for this "central" MDIO Integrated PCIe Endpoit. Signed-off-by: Claudiu Manoil --- .../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..c090f6df7a39 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 enpoint 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.