From patchwork Mon Apr 8 08:31:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 10888979 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 BA58B922 for ; Mon, 8 Apr 2019 08:32:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9C01F28609 for ; Mon, 8 Apr 2019 08:32:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8C8A228617; Mon, 8 Apr 2019 08:32:18 +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 3EBB228609 for ; Mon, 8 Apr 2019 08:32:18 +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: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:In-Reply-To: References:List-Owner; bh=rjbvDRSicBcvZBhZu8D2VBIcGd/kqP3DxwgCxcQkLss=; b=T70 k0xDYfNIYQd1Wnbv1Dh6e03B8LVIrljqlas/A0Jv7wkHkuIbz7d9j2DI/VRo77K+CICtq6W3nhmnw kg5BKlvyPCJ0xOD/2akJq+3+4RQVY2ZxmYaVtH2m7fPWlhbYxpVLbHv6b7a1bIKVe/PXcUc2ni35A dJ6Nn7hmXH/1UFFMQagfzmNivsILulPUWttRMzUEkbczk/WfqTON3TzOlF1vqi68nmKeC4FjhbNYK rI4O7YK6vUfH2SrdDqnsu036dY6pMIMB2eEF2f8gDOeMFJtCXgbxBiwP8AvabbnMj89eTu13S4w58 Xc35k5YfuJzATlXRuHZToOrv8f5Y3Sw==; 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 1hDPhM-0006oS-Pu; Mon, 08 Apr 2019 08:32:12 +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 1hDPhE-0006ck-Nh for linux-arm-kernel@lists.infradead.org; Mon, 08 Apr 2019 08:32:07 +0000 Received: from reginn.horms.nl (watermunt.horms.nl [80.127.179.77]) by kirsty.vergenet.net (Postfix) with ESMTPA id 9C59725B766; Mon, 8 Apr 2019 18:32:00 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=verge.net.au; s=mail; t=1554712320; bh=dsCQNbXkHXJ9afVPCeXEgmHgsXm3zIfGnXY+drm0QG4=; h=From:To:Cc:Subject:Date:From; b=TICC0Ckv/NJh0hf89NWyRRbMFGRJkarYQM2J1UOk0hv9dACt+7ILYhI+uVOpnx3t7 ysBuvXLrfCN44OjXRwtLK6E1ULJPQ8shPSUsz2TqzsanbuUz0TnlES/HPxeNNXZht6 NEl+t/CK6o6q0kuWc6F2yjMRs3wCeAKcfN/9qveI= Received: by reginn.horms.nl (Postfix, from userid 7100) id 89A4394069B; Mon, 8 Apr 2019 10:31:58 +0200 (CEST) From: Simon Horman To: linux-renesas-soc@vger.kernel.org Subject: [PATCH/RFC] arm64: dts: renesas: ebisu, draak: Limit EtherAVB to 100Mbps Date: Mon, 8 Apr 2019 10:31:48 +0200 Message-Id: <20190408083148.23134-1-horms+renesas@verge.net.au> X-Mailer: git-send-email 2.11.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190408_013205_211490_2625AFC7 X-CRM114-Status: UNSURE ( 9.33 ) X-CRM114-Notice: Please train this message. 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 , Wolfram Sang , Simon Horman , 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 * 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. Thus, the E3 based Ebisu and D3 based Draak boards reliably use 1Gbps and the speed should be limited to 100Mbps. Based on work by Kazuya Mizuguchi. Signed-off-by: Simon Horman --- arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts | 1 + arch/arm64/boot/dts/renesas/r8a77995-draak.dts | 1 + 2 files changed, 2 insertions(+) Based on renesas-devel-20190404-v5.1-rc3 diff --git a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts index c72772589953..05214b8dd2c5 100644 --- a/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts +++ b/arch/arm64/boot/dts/renesas/r8a77990-ebisu.dts @@ -272,6 +272,7 @@ interrupt-parent = <&gpio2>; interrupts = <21 IRQ_TYPE_LEVEL_LOW>; reset-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>; + max-speed = <100>; }; }; diff --git a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts index a7dc11e36fd9..80d82bd047fd 100644 --- a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts +++ b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts @@ -175,6 +175,7 @@ reg = <0>; interrupt-parent = <&gpio5>; interrupts = <19 IRQ_TYPE_LEVEL_LOW>; + max-speed = <100>; }; };