From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
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 7A3ADEE49B0
	for <linux-kernel@archiver.kernel.org>; Wed, 23 Aug 2023 03:46:44 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S232479AbjHWDqo (ORCPT <rfc822;linux-kernel@archiver.kernel.org>);
        Tue, 22 Aug 2023 23:46:44 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37390 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S230518AbjHWDqm (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Tue, 22 Aug 2023 23:46:42 -0400
Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3E9AF133;
        Tue, 22 Aug 2023 20:46:40 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch;
        s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version:
        References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject:
        Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding:
        Content-ID:Content-Description:Content-Disposition:In-Reply-To:References;
        bh=N/VXJ1kKhYLfRCA+1Lj4YZiKmTWpyloeWrhoq+4MlaQ=; b=yUWfjTrtMjlDrJYFgzuCanW2Fa
        QH/TLa2UDxATA7CpU7uc28PW4H7pYK+G9bK6bRg04R1OABwhXIA12fsneNZfkGuPiZkOp3DBhFnmx
        /Ttgic5OC/4tMAD+snluc5K2XcYy111KxoBnhEZmftijvYig8/VWKy+1/sF3HFHsPK8g=;
Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2)
        (envelope-from <andrew@lunn.ch>)
        id 1qYep8-004qGu-Rp; Wed, 23 Aug 2023 05:46:26 +0200
Date:   Wed, 23 Aug 2023 05:46:26 +0200
From:   Andrew Lunn <andrew@lunn.ch>
To:     Keguang Zhang <keguang.zhang@gmail.com>
Cc:     netdev@vger.kernel.org, devicetree@vger.kernel.org,
        linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
        Lee Jones <lee@kernel.org>, Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        "David S . Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        Giuseppe Cavallaro <peppe.cavallaro@st.com>,
        Alexandre Torgue <alexandre.torgue@foss.st.com>,
        Jose Abreu <joabreu@synopsys.com>,
        Serge Semin <Sergey.Semin@baikalelectronics.ru>
Subject: Re: [PATCH v2 3/4] net: stmmac: Add glue layer for Loongson-1 SoC
Message-ID: <ebcd20c4-b0ba-41aa-b8fa-ad26481c3707@lunn.ch>
References: <20230816111310.1656224-1-keguang.zhang@gmail.com>
 <20230816111310.1656224-4-keguang.zhang@gmail.com>
 <c3454ad9-1874-4301-b1b1-4f76886802fb@lunn.ch>
 <CAJhJPsWVRJg7zNeXPDovkBM4pm7hD+RP21DRxt0726VXtzvCHw@mail.gmail.com>
 <150ae6c1-8a2f-4fd7-b012-a53a909919d4@lunn.ch>
 <CAJhJPsUatqsa_D_RZ8ej33cGPRixhi7A2=2VBOSJVK6xNAA0jA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAJhJPsUatqsa_D_RZ8ej33cGPRixhi7A2=2VBOSJVK6xNAA0jA@mail.gmail.com>
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

> I understand the delay issue of RGMII.
> Just tried phy-mode = "rgmii-id", it still works.

That indicates something is broken. Both "rgmii-id" and "rgmii" should
not work, just one of them. What PHY driver are you using?

    Andrew