From patchwork Mon Mar 23 09:32:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kunihiko Hayashi X-Patchwork-Id: 11452549 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D9A9B139A for ; Mon, 23 Mar 2020 09:34:34 +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 B645F20663 for ; Mon, 23 Mar 2020 09:34:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="lFhaT5na" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B645F20663 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=socionext.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To: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:List-Owner; bh=SPjyrI0S0X5RaZTVFzzHx8iPs9H51kSbOT/9mm/uu/Y=; b=lFhaT5naiYPyw/NC0vMODwu4lz HqKJnKYwZfazE1BNo+hSCBK3O8xkFqvzF4ZycbZ1NYBdPZxBbTg+Rltyq3TEeaw8KxbZCZpMTA06z Le+Gjg5BTg6m2bdZedEphPWQ1wkvzaWKHFV5fMN2BR9w/s3hoGC2i6KTw8no/fOurHuDeYb/G3zZ6 TUjn+ZMN0UndrJCFlO4rkFoIVj/9z0MiGTXKcd7dXCepLk3+BPUPyWVNhC45dDl0Z93nWNZGpbmhF JNbms4Y80/kWkYhZRqo11ky4GkidNnQMa9X36tYhIEszQC7ngzI5vpvQOA4eUticn0rOepG0tj9Fh A23jYa3Q==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jGJTa-0002rd-EV; Mon, 23 Mar 2020 09:34:30 +0000 Received: from mx.socionext.com ([202.248.49.38]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jGJSL-0001cF-Ju for linux-arm-kernel@lists.infradead.org; Mon, 23 Mar 2020 09:33:15 +0000 Received: from unknown (HELO kinkan-ex.css.socionext.com) ([172.31.9.52]) by mx.socionext.com with ESMTP; 23 Mar 2020 18:33:13 +0900 Received: from mail.mfilter.local (m-filter-2 [10.213.24.62]) by kinkan-ex.css.socionext.com (Postfix) with ESMTP id 451A9180BCB; Mon, 23 Mar 2020 18:33:13 +0900 (JST) Received: from 172.31.9.51 (172.31.9.51) by m-FILTER with ESMTP; Mon, 23 Mar 2020 18:33:13 +0900 Received: from plum.e01.socionext.com (unknown [10.213.132.32]) by kinkan.css.socionext.com (Postfix) with ESMTP id C0A811A12AD; Mon, 23 Mar 2020 18:33:12 +0900 (JST) From: Kunihiko Hayashi To: Masahiro Yamada , Rob Herring Subject: [PATCH v3 6/6] arm64: dts: uniphier: Stabilize Ethernet RGMII mode of PXs3 ref board Date: Mon, 23 Mar 2020 18:32:50 +0900 Message-Id: <1584955970-8162-7-git-send-email-hayashi.kunihiko@socionext.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1584955970-8162-1-git-send-email-hayashi.kunihiko@socionext.com> References: <1584955970-8162-1-git-send-email-hayashi.kunihiko@socionext.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200323_023313_789643_19236CEA X-CRM114-Status: GOOD ( 14.13 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [202.248.49.38 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Kunihiko Hayashi , Masami Hiramatsu , linux-arm-kernel@lists.infradead.org, Jassi Brar MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The RGMII PHY needs to change drive-strength properties of the Ethernet Tx pins to stabilize the PHY. Signed-off-by: Kunihiko Hayashi --- arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts b/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts index fcab6d1..d74a6c6 100644 --- a/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts +++ b/arch/arm64/boot/dts/socionext/uniphier-pxs3-ref.dts @@ -132,3 +132,19 @@ reg = <0>; }; }; + +&pinctrl_ether_rgmii { + tx { + pins = "RGMII0_TXCLK", "RGMII0_TXD0", "RGMII0_TXD1", + "RGMII0_TXD2", "RGMII0_TXD3", "RGMII0_TXCTL"; + drive-strength = <9>; + }; +}; + +&pinctrl_ether1_rgmii { + tx { + pins = "RGMII1_TXCLK", "RGMII1_TXD0", "RGMII1_TXD1", + "RGMII1_TXD2", "RGMII1_TXD3", "RGMII1_TXCTL"; + drive-strength = <9>; + }; +};