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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 78856C3A5A0 for ; Mon, 19 Aug 2019 22:54:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4277220578 for ; Mon, 19 Aug 2019 22:54:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="1Rm8Vqe1" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728603AbfHSWy2 (ORCPT ); Mon, 19 Aug 2019 18:54:28 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:43310 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728014AbfHSWy1 (ORCPT ); Mon, 19 Aug 2019 18:54:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=NdrnjgrahYESqLJFFvBWO65ixubaBOtmFXh1UYBUR6M=; b=1Rm8Vqe1AePi4GbhZutVJ4u0h4 SYsEUy3WfuHhjLmtLiOAxbydMwfHJjrxnYVaBKGFNXlSg2ejVG6TVB6y/TCR4d9VQeTXavYGs5/Ar yvrLGVIrjDPKyWPpfGKT+aUKLpyQuTV0maXlU/bghFCycoQTTnjxc5S2wKSONZZadFiM=; Received: from andrew by vps0.lunn.ch with local (Exim 4.89) (envelope-from ) id 1hzqXe-00024v-Ua; Tue, 20 Aug 2019 00:54:22 +0200 Date: Tue, 20 Aug 2019 00:54:22 +0200 From: Andrew Lunn To: Marco Hartmann Cc: Andy Duan , "davem@davemloft.net" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Christian Herber Subject: Re: [PATCH net-next 0/1] net: fec: add C45 MDIO read/write support Message-ID: <20190819225422.GD29991@lunn.ch> References: <1566234659-7164-1-git-send-email-marco.hartmann@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1566234659-7164-1-git-send-email-marco.hartmann@nxp.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 19, 2019 at 05:11:14PM +0000, Marco Hartmann wrote: > As of yet, the Fast Ethernet Controller (FEC) driver only supports Clause 22 > conform MDIO transactions. IEEE 802.3ae Clause 45 defines a modified MDIO > protocol that uses a two staged access model in order to increase the address > space. > > This patch adds support for Clause 45 conform MDIO read and write operations to > the FEC driver. Hi Marco Do all versions of the FEC hardware support C45? Or do we need to make use of the quirk support in this driver to just enable it for some revisions of FEC? Thanks Andrew