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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 C74ACC32792 for ; Thu, 3 Oct 2019 17:31:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9C56C20830 for ; Thu, 3 Oct 2019 17:31:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570123891; bh=x3CIsCXcVinP9qVLbt8vSkv0DvTQeBfbKhDw/hdnX+M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=0BB792OV8XD25LC6ndxjJYgJjO/EDvgQwcRRPy7iLPFn+1kzchVhLxWMN/pgO3o2F hESinmX3MLbJmCHyK8xKv7qLdVWw3jGRLV1D0izP4iwqJ+K2kFZsRVrvnQxWymZMY9 8FAtkK1RvfPgX0dR2Qu9SxWVAfgIfiKBXgftfNZs= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731775AbfJCRbX (ORCPT ); Thu, 3 Oct 2019 13:31:23 -0400 Received: from mail.kernel.org ([198.145.29.99]:59484 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387597AbfJCQKR (ORCPT ); Thu, 3 Oct 2019 12:10:17 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0E9F720865; Thu, 3 Oct 2019 16:10:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570119015; bh=x3CIsCXcVinP9qVLbt8vSkv0DvTQeBfbKhDw/hdnX+M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pj0+Mx8rvbRuWzF7v7S/SrhTZbafj+ipLaFYIrwjdZZX02bmf4J9vrOtZsJ9pQqrV tMaqYd6A16tKUKnevmXhgtwtNmytbwUZYbXfufeZfXlD1F9NqzGQimWH67gLbhbsoa d4qHJ9euIyEXMXtHt6iVD1Mx7T63w6K60wYzdlSA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?Andr=C3=A9=20Draszik?= , Ilya Ledvich , Igor Grinberg , Rob Herring , Mark Rutland , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sasha Levin Subject: [PATCH 4.14 095/185] ARM: dts: imx7d: cl-som-imx7: make ethernet work again Date: Thu, 3 Oct 2019 17:52:53 +0200 Message-Id: <20191003154459.713414437@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191003154437.541662648@linuxfoundation.org> References: <20191003154437.541662648@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: AndrĂ© Draszik [ Upstream commit 9846a4524ac90b63496580b7ad50674b40d92a8f ] 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: AndrĂ© 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 Signed-off-by: Shawn Guo Signed-off-by: Sasha Levin --- arch/arm/boot/dts/imx7d-cl-som-imx7.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/imx7d-cl-som-imx7.dts b/arch/arm/boot/dts/imx7d-cl-som-imx7.dts index 3cc1fb9ce4418..60a28281d3d16 100644 --- a/arch/arm/boot/dts/imx7d-cl-som-imx7.dts +++ b/arch/arm/boot/dts/imx7d-cl-som-imx7.dts @@ -43,7 +43,7 @@ <&clks IMX7D_ENET1_TIME_ROOT_CLK>; assigned-clock-parents = <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>; assigned-clock-rates = <0>, <100000000>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; phy-handle = <ðphy0>; fsl,magic-packet; status = "okay"; @@ -69,7 +69,7 @@ <&clks IMX7D_ENET2_TIME_ROOT_CLK>; assigned-clock-parents = <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>; assigned-clock-rates = <0>, <100000000>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; phy-handle = <ðphy1>; fsl,magic-packet; status = "okay"; -- 2.20.1