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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CA390C4332F for ; Mon, 30 Oct 2023 11:55:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233039AbjJ3Lzb (ORCPT ); Mon, 30 Oct 2023 07:55:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54018 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232887AbjJ3Lz3 (ORCPT ); Mon, 30 Oct 2023 07:55:29 -0400 Received: from mail-ed1-x532.google.com (mail-ed1-x532.google.com [IPv6:2a00:1450:4864:20::532]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F0AA8C6 for ; Mon, 30 Oct 2023 04:55:26 -0700 (PDT) Received: by mail-ed1-x532.google.com with SMTP id 4fb4d7f45d1cf-53df747cfe5so7339679a12.2 for ; Mon, 30 Oct 2023 04:55:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=resnulli-us.20230601.gappssmtp.com; s=20230601; t=1698666925; x=1699271725; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=Q31c8fnQHD+W10kmomcQ4zTSAMbkT+bVtaWYEa58nas=; b=HvoOMHM3zushLZ9gCVFUIC4w7Sq7a2oQf/zsEOrIJiV2h3ds3QAP5QGzzx8OOL+dRS sNxzjq1xK1IqleJ0U2RWCPf1GazQcoR38f0IkZvEMevVJHyA7lrZPMVym0p9b1vK5l9A Sdi9DCSdHxh/voEzqQ6C7id53wKrCXOXGRDHUpg2aU0N6bKaAcRwrMIhnpm7UWUEkIaa z4I+5xiv+JwyPIxKPDtqeE35zVMyQDdmJggjNCCaDZQ5DYE5iHHoPbo541xDR+Fi9MqX 3QMk8i8gwj7wkGUw5BLpoqX2LZ/cvl+bYuwWfikj2XGbtHwzwZga4wuZxrgtOxfDHqZY yqGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698666925; x=1699271725; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Q31c8fnQHD+W10kmomcQ4zTSAMbkT+bVtaWYEa58nas=; b=TWVU55wl/vJ1DlveIXmaGDwVOHcypaM3aOyDop4MnLpulXHkdZpvVZ/417mSovH2Ub Wx6CkD9yPvui7zxfKWGshbAqdIILDCdVawqrm518qnPv1f5mtuza8fUCk2MiKugjNBOS 0ngdTyWobvttgRyl1+wveMVboCW7nu4PWItXGtGiTpL29NUR+Nf92KnyzU5vp6Ds6O0u uJvbEg2AgeNVV94SFKQLrYGtFbPA4KGmlPq3MDXwno4a7j+crIh4zfqwb7OBan4Y8nYc R9dun3KK7YPhHOouKKv4Im5eZ8n8qmrJ6j/CJJ0MycjHhSouBdpakiT+Au6VtKoRKIKo 1RJA== X-Gm-Message-State: AOJu0Yymdfc9SbRyWFA//MJmfqSH7zqMTbwNt95ZZsGMCzIg9FOTBV7z +H4g7tVrIr2mBs06YAov2goptA== X-Google-Smtp-Source: AGHT+IEK0FVzrhD+/lsg/GFhSKbE3HoxQjpfS+HOYJ/lF5CE71Yh2/i3l6Z4QGe2FLuRhkkWz0rUHA== X-Received: by 2002:a17:906:c14b:b0:9be:ab38:a362 with SMTP id dp11-20020a170906c14b00b009beab38a362mr8139316ejc.46.1698666925439; Mon, 30 Oct 2023 04:55:25 -0700 (PDT) Received: from localhost (host-213-179-129-39.customer.m-online.net. [213.179.129.39]) by smtp.gmail.com with ESMTPSA id lf19-20020a170906ae5300b009ad89697c86sm5944350ejb.144.2023.10.30.04.55.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Oct 2023 04:55:24 -0700 (PDT) Date: Mon, 30 Oct 2023 12:55:23 +0100 From: Jiri Pirko To: Bernd Edlinger Cc: Alexandre Torgue , Jose Abreu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] net: stmmac: Wait a bit for the reset to take effect Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Mon, Oct 30, 2023 at 07:01:11AM CET, bernd.edlinger@hotmail.de wrote: >otherwise the synopsys_id value may be read out wrong, >because the GMAC_VERSION register might still be in reset >state, for at least 1 us after the reset is de-asserted. > >Add a wait for 10 us before continuing to be on the safe side. > >Signed-off-by: Bernd Edlinger Reviewed-by: Jiri Pirko