From patchwork Thu Apr 27 19:55:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hugo Villeneuve X-Patchwork-Id: 88376 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp517355vqo; Thu, 27 Apr 2023 13:36:45 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ49PFAKuA1zhTYVXOxpjFlw+nl6HtG7PWoGeONjVhuDUJQcjPHCLpPXaKHoFgySbwm/twk+ X-Received: by 2002:a05:6a20:a6a4:b0:da:368e:7c73 with SMTP id ba36-20020a056a20a6a400b000da368e7c73mr3177779pzb.37.1682627804723; Thu, 27 Apr 2023 13:36:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1682627804; cv=none; d=google.com; s=arc-20160816; b=ppUTfLdW7HRrbzOaVAzvJEJA6Nubb5iFskEjR5Cdu/IarDi+ThX5ADz8AXtG+5cupW l6L82gXrVyBVUjB1CCAbXM+YwgKndIiXyjgvwQMGlnR9sduZmf5IckYZ7VjHNbqZlQmW hwW7/32reEgrm1AQWY56nTZcrLA3m088lidUedLCesiIhPv1fksqGSymoVdgsUzzqbND aGcbBMSyZKawZ/Lz1bMEpJpP7EEEsKgZ+9PJe5WjY80Fu4l40Sr5EY33r82Ohgh9L5zf Ymqx3pNIGQ2mLYySTzKoV77RGySiRW86gakbPFk+blhjZSq6uQNw3fYFKrW+ubtQXx80 NYjg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:subject:content-transfer-encoding:mime-version :message-id:date:cc:to:from:dkim-signature; bh=dXVd02aZfCBZB8aqLEE5MFIo/7qfAJEue/einpiysyY=; b=kEJlXVrO0s2tCVjtOI3YQ1CvPi7zKoOTV6G5WrftCYQovBhePtrLqZX5l8l8V7hzC9 EOHIow/kp402E6S7Sp9Eywn62Mq/SJsHDLoSDFagP2qIf99NWD0O7sZdxrZY9P6x/8Vw uatY5crFkt3WSN1MtPUP97k7Ed7ExbkmXoBHsviVC/OJWaXAuwXbD1kj3fIHKtAovBBh 9l1plpxIvtlOKilptcPfHVb1tZuOySbKyg9IQ5/3zvF9N2pXzVcF36NsFvMVF/Pc4d7g iXHwdEiJuCV47QRNheyUCBfnBjNwjHfAkPiUZ9MJNchN6Zg7hJMZ2ZlzbFovizMMvpo0 vKbg== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@hugovil.com header.s=x header.b=n21snRrj; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id f16-20020a63f110000000b0051b1fe0b7besi19833295pgi.580.2023.04.27.13.36.30; Thu, 27 Apr 2023 13:36:44 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=fail header.i=@hugovil.com header.s=x header.b=n21snRrj; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344189AbjD0UVK (ORCPT + 99 others); Thu, 27 Apr 2023 16:21:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53326 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344184AbjD0UVF (ORCPT ); Thu, 27 Apr 2023 16:21:05 -0400 Received: from mail.hugovil.com (mail.hugovil.com [162.243.120.170]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D7FF3C07; Thu, 27 Apr 2023 13:21:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=hugovil.com ; s=x; h=Subject:Content-Transfer-Encoding:MIME-Version:Message-Id:Date:Cc:To :From:Sender:Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date :Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Id:List-Help:List-Unsubscribe:List-Subscribe:List-Post: List-Owner:List-Archive; bh=dXVd02aZfCBZB8aqLEE5MFIo/7qfAJEue/einpiysyY=; b=n 21snRrjJ5QWb8iCWg3KZrjIzkHvibayRWSiLDCdGvPoxBifQyxQebNFZqjFMYpabDHNJessUMuP67 Bjwuv+sS6bI4y3DdLbgMhswiLk+ZnqIK2wW9RYby2t9eNTGXzv06QtKL9MhIqMsIU8S/Czr5wB5uS 51F5wnX16rVfqeUc=; Received: from modemcable168.174-80-70.mc.videotron.ca ([70.80.174.168]:50478 helo=pettiford.lan) by mail.hugovil.com with esmtpa (Exim 4.92) (envelope-from ) id 1ps7j4-0002gK-Fv; Thu, 27 Apr 2023 15:56:22 -0400 From: Hugo Villeneuve To: Rob Herring , Krzysztof Kozlowski , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team Cc: Hugo Villeneuve , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Date: Thu, 27 Apr 2023 15:55:38 -0400 Message-Id: <20230427195538.2718661-1-hugo@hugovil.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-SA-Exim-Connect-IP: 70.80.174.168 X-SA-Exim-Mail-From: hugo@hugovil.com X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Spam-Level: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 Subject: [PATCH] imx8mn-var-som: dts: fix PHY detection bug by adding deassert delay X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on mail.hugovil.com) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1764361702774900387?= X-GMAIL-MSGID: =?utf-8?q?1764363132954193267?= From: Hugo Villeneuve While testing the ethernet interface on a symphony carrier board using an imx8mn SOM with an onboard PHY (EC hardware configuration), the ethernet PHY is not detected. The device tree in Variscite custom linux git repository uses the following property: phy-reset-post-delay = <20>; Add a new property 'reset-deassert-us' of 20ms to have the same delay inside the ethphy phandle. Adding this property fixes the problem with the PHY detection. Signed-off-by: Hugo Villeneuve --- arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi index 67072e6c77d5..9052b0d4b5b4 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn-var-som.dtsi @@ -103,6 +103,7 @@ ethphy: ethernet-phy@4 { reg = <4>; reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>; reset-assert-us = <10000>; + reset-deassert-us = <20000>; }; }; };