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 Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7D70DEB64DC for ; Tue, 11 Jul 2023 19:42:37 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 4F813868EF; Tue, 11 Jul 2023 21:42:17 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=denx.de Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1689104537; bh=RACyqDeP+ERvuJwx08vfBYpIMUdYxlK2vwsdzCWVNsE=; h=From:To:In-reply-to:Subject:Date:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From; b=QE6Qp3Ri5wPuaNhvqccZMFEZsESAJmQoMps10CmNU7f60U7MkdCc53izuE/cZP3VZ FwILmfmuaHEFeHQ3eZQ2CMVzQSVNiMoi8tIlMwX8UweiEKomdvswZJPwLuulUslqjd 0GwkG70BxUrT76SjcJncGJRwWjw4FK+F2gjLSf5/yE8AQuIjmFypipsHLn/+3IE4e4 lmcOGClFZDvsIv3bm3erHcKOOsvyrSSiBIdETTmM/Bs4uEnfrDsealibYIs08ZfMu3 DxkLBB6h/+gBVFZQpZunF8TGev5P2AwWVqP5cflEamcASsjqa71ERyM8q5O5xlTSEq B1TBcJO2QVnjg== Received: by phobos.denx.de (Postfix, from userid 109) id E30AF86902; Tue, 11 Jul 2023 21:42:15 +0200 (CEST) Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 981E2868F8 for ; Tue, 11 Jul 2023 21:42:12 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=fail (p=none dis=none) header.from=denx.de Authentication-Results: phobos.denx.de; spf=fail smtp.mailfrom=sbabic@denx.de Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4R0rqS2yFkz1sGWx; Tue, 11 Jul 2023 21:42:09 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.68]) by mail.m-online.net (Postfix) with ESMTP id 4R0rqP4gykz1qqmK; Tue, 11 Jul 2023 21:42:09 +0200 (CEST) X-Amavis-Alert: BAD HEADER SECTION, Missing required header field: "Date" Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.68]) (amavis, port 10024) with ESMTP id nEFuDoICpnTf; Tue, 11 Jul 2023 21:42:09 +0200 (CEST) Received: from papero (host-88-217-136-221.customer.m-online.net [88.217.136.221]) by mail.mnet-online.de (Postfix) with ESMTP; Tue, 11 Jul 2023 21:42:09 +0200 (CEST) From: sbabic@denx.de X-Patchwork-Submitter: Hugo Villeneuve X-Patchwork-Id: 1786275 X-Patchwork-Delegate: sbabic@denx.de To: Hugo Villeneuve ,u-boot@lists.denx.de In-reply-to: <20230525210228.4164480-4-hugo@hugovil.com> Subject: [PATCH v2 3/5] arm: dts: imx8mn-var-som: fix PHY detection bug by adding deassert delay Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit MIME-Version: 1.0 Message-Id: <20230711194215.E30AF86902@phobos.denx.de> Date: Tue, 11 Jul 2023 21:42:12 +0200 (CEST) X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean > From: Hugo Villeneuve > While testing the ethernet interface on a Variscite symphony carrier > board using an imx8mn SOM with an onboard ADIN1300 PHY (EC hardware > configuration), the ethernet PHY is not detected. > The ADIN1300 datasheet indicate that the "Management interface > active (t4)" state is reached at most 5ms after the reset signal is > deasserted. > The device tree in Variscite custom git repository uses the following > property: > phy-reset-post-delay = <20>; > Add a new MDIO property 'reset-deassert-us' of 20ms to have the same > delay inside the ethphy node. Adding this property fixes the problem > with the PHY detection. > Note that this SOM can also have an Atheros AR8033 PHY. In this case, > a 1ms deassert delay is sufficient. Add a comment to that effect. > Fixes: c4c1ed68c1e8 ("imx8mn_var_som: Add support for Variscite > VAR-SOM-MX8M-NANO board") > Signed-off-by: Hugo Villeneuve Applied to u-boot-imx, master, thanks ! Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, Managing Director: Erika Unter HRB 165235 Munich, Office: Kirchenstr.5, 82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic@denx.de =====================================================================