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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 5FBDAC433E0 for ; Thu, 18 Jun 2020 01:59:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3BA9522253 for ; Thu, 18 Jun 2020 01:59:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592445583; bh=na/pAxqUC7L09hQD/XGENYwhJUyVwCDzlO8hLUN7kEg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=hT05nphKMFTJyP49lDBm1iy0FrvL4GQujJEHS6qA23fENL63XOGZFSe90/4MBopsG jI29wCDiR/p4d0ekaAdBIJe/52z7OfqHMwJWMaZ6r64Ix3k1Z/OgoLn+OLKKZss0zB RWPbKLmjH2Q8tuzUjXW9XhmZJBF6mZcihRzFD354= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731252AbgFRB7h (ORCPT ); Wed, 17 Jun 2020 21:59:37 -0400 Received: from mail.kernel.org ([198.145.29.99]:59156 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731250AbgFRBYf (ORCPT ); Wed, 17 Jun 2020 21:24:35 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (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 0E9A8214DB; Thu, 18 Jun 2020 01:24:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592443474; bh=na/pAxqUC7L09hQD/XGENYwhJUyVwCDzlO8hLUN7kEg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fktY6yBY9s1vvpaaKL4wy7z0yfJAJZ4VcX4VfLvLqwR5JpFlaqXWl1995pdrHM7JT l4JIbYVf1Qoe6DV5VxwN4jzzWcdHYM6iKWbi8MYy9gtrzuqN/PY08rajq3/8hFiWvj jOI+Fmtb4zs4UVh/uXWI6Yrknls1cYyS6TiYnCTw= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jon Hunter , Thierry Reding , Sasha Levin , devicetree@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 105/172] arm64: tegra: Fix ethernet phy-mode for Jetson Xavier Date: Wed, 17 Jun 2020 21:21:11 -0400 Message-Id: <20200618012218.607130-105-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200618012218.607130-1-sashal@kernel.org> References: <20200618012218.607130-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jon Hunter [ Upstream commit bba25915b172c72f6fa635f091624d799e3c9cae ] The 'phy-mode' property is currently defined as 'rgmii' for Jetson Xavier. This indicates that the RGMII RX and TX delays are set by the MAC and the internal delays set by the PHY are not used. If the Marvell PHY driver is enabled, such that it is used and not the generic PHY, ethernet failures are seen (DHCP is failing to obtain an IP address) and this is caused because the Marvell PHY driver is disabling the internal RX and TX delays. For Jetson Xavier the internal PHY RX and TX delay should be used and so fix this by setting the 'phy-mode' to 'rgmii-id' and not 'rgmii'. Fixes: f89b58ce71a9 ("arm64: tegra: Add ethernet controller on Tegra194") Signed-off-by: Jon Hunter Signed-off-by: Thierry Reding Signed-off-by: Sasha Levin --- arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi b/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi index 57d3f00464ce..7352954e12be 100644 --- a/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra194-p2888.dtsi @@ -32,7 +32,7 @@ ethernet@2490000 { phy-reset-gpios = <&gpio TEGRA194_MAIN_GPIO(G, 5) GPIO_ACTIVE_LOW>; phy-handle = <&phy>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; mdio { #address-cells = <1>; -- 2.25.1