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[209.132.180.67]) by mx.google.com with ESMTP id n128si9478642pgn.82.2019.08.19.00.52.26; Mon, 19 Aug 2019 00:52:42 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=XkPMjR9k; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726867AbfHSHvf (ORCPT + 99 others); Mon, 19 Aug 2019 03:51:35 -0400 Received: from mail.kernel.org ([198.145.29.99]:36162 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725790AbfHSHvf (ORCPT ); Mon, 19 Aug 2019 03:51:35 -0400 Received: from X250 (37.80-203-192.nextgentel.com [80.203.192.37]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 119D92082C; Mon, 19 Aug 2019 07:51:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566201094; bh=YYr+sOzCSeA4C3uJqftbtG0MGcaU4L5Jif35BaA4Eeg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=XkPMjR9kuQYoRQFea2vw8zhFvepVrwta4FDt0MBDl3vuCiPOXC9CX+uxyms8h9ObM lVnSTdfyABWFjGSXGqiaA7jEMJha02Ui/xq8ZZldXeCRmhMMnlHr8KDrN1Yxy+kBPk P3spAEPt2fVETl5G5eZQoUISn2kecFpSHI+5s3Zs= Date: Mon, 19 Aug 2019 09:51:22 +0200 From: Shawn Guo To: =?iso-8859-1?Q?Andr=E9?= Draszik Cc: linux-kernel@vger.kernel.org, Ilya Ledvich , Igor Grinberg , Rob Herring , Mark Rutland , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH] ARM: dts: imx7d: cl-som-imx7: make ethernet work again Message-ID: <20190819075121.GE5999@X250> References: <20190809031227.3319-1-git@andred.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20190809031227.3319-1-git@andred.net> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 09, 2019 at 04:12:27AM +0100, Andr? Draszik wrote: > Recent changes to the atheros at803x driver caused > ethernet to stop working on this board. > In particular commit 6d4cd041f0af > ("net: phy: at803x: disable delay only for RGMII mode") > and commit cd28d1d6e52e > ("net: phy: at803x: Disable phy delay for RGMII mode") > fix the AR8031 driver to configure the phy's (RX/TX) > delays as per the 'phy-mode' in the device tree. > > This now prevents ethernet from working on this board. > > It used to work before those commits, because the > AR8031 comes out of reset with RX delay enabled, and > the at803x driver didn't touch the delay configuration > at all when "rgmii" mode was selected, and because > arch/arm/mach-imx/mach-imx7d.c:ar8031_phy_fixup() > unconditionally enables TX delay. > > Since above commits ar8031_phy_fixup() also has no > effect anymore, and the end-result is that all delays > are disabled in the phy, no ethernet. > > Update the device tree to restore functionality. > > Signed-off-by: Andr? Draszik > CC: Ilya Ledvich > CC: Igor Grinberg > CC: Rob Herring > CC: Mark Rutland > CC: Shawn Guo > CC: Sascha Hauer > CC: Pengutronix Kernel Team > CC: Fabio Estevam > CC: NXP Linux Team > CC: devicetree@vger.kernel.org > CC: linux-arm-kernel@lists.infradead.org Applied, thanks.