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=-3.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_NEOMUTT 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 55F49C10F11 for ; Wed, 10 Apr 2019 09:27:21 +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 237722083E for ; Wed, 10 Apr 2019 09:27:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="nXXY/Hrm" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 237722083E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=verge.net.au Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.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:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=7Sx8WPtV7AaQ2vhnfvHSLtTs4W5STF6dhp3M6wZUZpo=; b=nXXY/Hrm2otfrs olelGefZeyAEJ6z6ojNan3zvvhskg4dOQkzza/KT+iKPvnghvbQv45eZHJUTG+0KNXISvlwmWXqm7 EaNEv4h8UU/yDiRCReku55nai5BAZCmuZgziTb2oOQf6e8pDLo2uE9kMirNpnjQwBvsjz9SGxGvdA dEMi0U4XPz8cWhrm7Zn9l400ibo1b9gQ0Bs/M+4JBcZqczgegCgu6pC5KktWEEhSZX1nGsfS4dm1H wLAce/JSgEkJJyLUJt+4zSp2wxXPL4WMylIDjDVN408yZrLZgdsCAjbbY5i6UtP+qUHm0s25brQ35 QOV4dUUjG1ih+pID8dkg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hE9Vo-0000z0-BX; Wed, 10 Apr 2019 09:27:20 +0000 Received: from kirsty.vergenet.net ([202.4.237.240]) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hE9Vk-0000y6-IJ for linux-arm-kernel@lists.infradead.org; Wed, 10 Apr 2019 09:27:17 +0000 Received: from reginn.horms.nl (watermunt.horms.nl [80.127.179.77]) by kirsty.vergenet.net (Postfix) with ESMTPA id 3D22725BE4C; Wed, 10 Apr 2019 19:27:15 +1000 (AEST) Received: by reginn.horms.nl (Postfix, from userid 7100) id 469C7940356; Wed, 10 Apr 2019 11:27:13 +0200 (CEST) Date: Wed, 10 Apr 2019 11:27:13 +0200 From: Simon Horman To: Andrew Lunn Subject: Re: [PATCH/RFC] arm64: dts: renesas: ebisu, draak: Limit EtherAVB to 100Mbps Message-ID: <20190410092712.4neevfmz4o666lrm@verge.net.au> References: <20190408083148.23134-1-horms+renesas@verge.net.au> <20190408212628.GB23071@lunn.ch> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190408212628.GB23071@lunn.ch> Organisation: Horms Solutions BV User-Agent: NeoMutt/20170113 (1.7.2) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190410_022716_756042_14686754 X-CRM114-Status: GOOD ( 11.78 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sergei Shtylyov , Yoshihiro Shimoda , Magnus Damm , linux-renesas-soc@vger.kernel.org, Wolfram Sang , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Apr 08, 2019 at 11:26:28PM +0200, Andrew Lunn wrote: > On Mon, Apr 08, 2019 at 10:31:48AM +0200, Simon Horman wrote: > > * According to the R-Car Gen3 Hardware Manual Errata for Rev 1.00 of > > August 24, 2018, the TX clock internal delay mode isn't supported > > on R-Car E3 (r8a77990) and D3 (r8a77995). > > > > * TX clock internal delay mode is required for reliable 1Gbps communication > > using the KSZ9031RNX phy present on the Ebisu and Draak boards. > > Hi Simon > > My reading of the KSZ9031RNX datasheet suggests the PHY can perform > the delays. MMD address 2h, Register 8h - RGMII Clock Pad Skew. > > The PHY driver might even have the needed vendor specific DT > properties. > > Have you look at using this? Thanks for the suggestion Andrew, I will ask Renesas about this. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel