From patchwork Tue Sep 15 14:12:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 309677 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=-15.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 0DBABC433E2 for ; Tue, 15 Sep 2020 23:24:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C6218212CC for ; Tue, 15 Sep 2020 23:24:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600212286; bh=1mHP6AlHcN8+MFuJgY6eOpbAKy8DGizhqDFii+TeYIM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=rRT+/iNyyySxOu+pUyMkODRGQ3a8zc414WB0VT7lho+jvkCFt3gk1R5VFhoNYJ96j d6II74lqzaHkabZpni1V+iSWM9U29dtS233ANZHU5GNJrt+4mBKil+QbZsbs0tw8F5 rFzrb7pyJd+T30MhcG8lHnryqVXiIU06kv5yNmsg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727321AbgIOXYo (ORCPT ); Tue, 15 Sep 2020 19:24:44 -0400 Received: from mail.kernel.org ([198.145.29.99]:48030 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727181AbgIOOiA (ORCPT ); Tue, 15 Sep 2020 10:38:00 -0400 Received: from localhost (83-86-74-64.cable.dynamic.v4.ziggo.nl [83.86.74.64]) (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 F1D5E2245D; Tue, 15 Sep 2020 14:27:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1600180069; bh=1mHP6AlHcN8+MFuJgY6eOpbAKy8DGizhqDFii+TeYIM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ex874b+EEfrzUtON0lVmHvBDEOLmleWBRsUNQfWpMiuXqgr4DcmRUuOgoEOclbqb+ LpEyFPu1niWMTDAp7UOuXIjwXeuyS1tfQWXQ1kCqU2q3eVIEn7HtT1VRG9MjiEdcfx 5zUSfPb8JTFvnxGcWsOwEVwPObsx1sC8lWgUGKCI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Evgeniy Didin , Eugeniy Paltsev , Alexey Brodkin , Vineet Gupta , Sasha Levin Subject: [PATCH 5.8 097/177] ARC: [plat-hsdk]: Switch ethernet phy-mode to rgmii-id Date: Tue, 15 Sep 2020 16:12:48 +0200 Message-Id: <20200915140658.291387932@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200915140653.610388773@linuxfoundation.org> References: <20200915140653.610388773@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Evgeniy Didin [ Upstream commit 26907eb605fbc3ba9dbf888f21d9d8d04471271d ] HSDK board has Micrel KSZ9031, recent commit bcf3440c6dd ("net: phy: micrel: add phy-mode support for the KSZ9031 PHY") caused a breakdown of Ethernet. Using 'phy-mode = "rgmii"' is not correct because accodring RGMII specification it is necessary to have delay on RX (PHY to MAX) which is not generated in case of "rgmii". Using "rgmii-id" adds necessary delay and solves the issue. Also adding name of PHY placed on HSDK board. Signed-off-by: Evgeniy Didin Cc: Eugeniy Paltsev Cc: Alexey Brodkin Signed-off-by: Vineet Gupta Signed-off-by: Sasha Levin --- arch/arc/boot/dts/hsdk.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index 5d64a5a940ee6..dcaa44e408ace 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -210,7 +210,7 @@ reg = <0x8000 0x2000>; interrupts = <10>; interrupt-names = "macirq"; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; snps,pbl = <32>; snps,multicast-filter-bins = <256>; clocks = <&gmacclk>; @@ -228,7 +228,7 @@ #address-cells = <1>; #size-cells = <0>; compatible = "snps,dwmac-mdio"; - phy0: ethernet-phy@0 { + phy0: ethernet-phy@0 { /* Micrel KSZ9031 */ reg = <0>; }; };