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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 D95B4C2D0E4 for ; Mon, 23 Nov 2020 17:48:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7CAF220758 for ; Mon, 23 Nov 2020 17:48:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729531AbgKWRsV (ORCPT ); Mon, 23 Nov 2020 12:48:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48674 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729370AbgKWRsV (ORCPT ); Mon, 23 Nov 2020 12:48:21 -0500 Received: from b-painless.mh.aa.net.uk (b-painless.mh.aa.net.uk [IPv6:2001:8b0:0:30::52]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B97CC0613CF for ; Mon, 23 Nov 2020 09:48:21 -0800 (PST) Received: from cartman.offog.org ([2001:8b0:83b:b53f::a]) by b-painless.mh.aa.net.uk with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1khFwq-0004YD-6M; Mon, 23 Nov 2020 17:48:20 +0000 Received: from ats by cartman.offog.org with local (Exim 4.92.3) (envelope-from ) id 1khFwY-0001pI-3Q; Mon, 23 Nov 2020 17:48:02 +0000 From: Adam Sampson To: Maxime Ripard , Chen-Yu Tsai , Jernej Skrabec , Adam Sampson , linux-sunxi , devicetree , linux-arm-kernel , Andrew Lunn Cc: Chen-Yu Tsai Subject: [PATCH] ARM: dts: sun7i: pcduino3-nano: enable RGMII RX/TX delay on PHY Date: Mon, 23 Nov 2020 17:47:39 +0000 Message-Id: <20201123174739.6809-1-ats@offog.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The RX/TX delays for the Ethernet PHY on the Linksprite pcDuino 3 Nano are configured in hardware, using resistors that are populated to pull the RTL8211E's RXDLY/TXDLY pins low or high as needed. phy-mode should be set to rgmii-id to reflect this. Previously it was set to rgmii, which used to work but now results in the delays being disabled again as a result of the bugfix in commit bbc4d71d6354 ("net: phy: realtek: fix rtl8211e rx/tx delay config"). Tested on two pcDuino 3 Nano boards purchased in 2015. Without this fix, Ethernet works unreliably on one board and doesn't work at all on the other. Fixes: 061035d456c9 ("ARM: dts: sun7i: Add dts file for pcDuino 3 Nano board") Signed-off-by: Adam Sampson Reviewed-by: Andrew Lunn Acked-by: Chen-Yu Tsai --- arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts index fce2f7fcd084..bf38c66c1815 100644 --- a/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts +++ b/arch/arm/boot/dts/sun7i-a20-pcduino3-nano.dts @@ -1,5 +1,5 @@ /* - * Copyright 2015 Adam Sampson + * Copyright 2015-2020 Adam Sampson * * This file is dual-licensed: you can use it either under the terms * of the GPL or the X11 license, at your option. Note that this dual @@ -115,7 +115,7 @@ &gmac { pinctrl-names = "default"; pinctrl-0 = <&gmac_rgmii_pins>; phy-handle = <&phy1>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; status = "okay"; }; -- 2.29.1