linux-kernel - Re: [PATCH v2 3/4] net: stmmac: Add glue layer for Loongson-1 SoC

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Message-ID: <CAJhJPsVwfGsuzzHx-zVwz=T7zw-+bJ2MZ1YUffiU7NvU4X9njw@mail.gmail.com>
Date:   Wed, 23 Aug 2023 12:40:40 +0800
From:   Keguang Zhang <keguang.zhang@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lee Jones <lee@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        Serge Semin <Sergey.Semin@...kalelectronics.ru>
Subject: Re: [PATCH v2 3/4] net: stmmac: Add glue layer for Loongson-1 SoC

On Wed, Aug 23, 2023 at 11:46 AM Andrew Lunn <andrew@...n.ch> wrote:
>
> > 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?
>
I used generic PHY driver.
Both "rgmii" and "rgmii-id" work with this driver.
The PHY is RTL8211E.
So I switch the PHY driver to Realtek driver.
Now only "rgmii-id" works.
Thanks!

>     Andrew
>


--
Best regards,

Keguang Zhang