Message-ID: <81217dc9-5673-f7eb-3114-b39de8302687@starfivetech.com>
Date:   Fri, 3 Feb 2023 11:02:54 +0800
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Subject: Re: [PATCH v4 0/7] Add Ethernet driver for StarFive JH7110 SoC
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To:     Conor Dooley <conor@kernel.org>
CC:     <linux-riscv@lists.infradead.org>, <netdev@vger.kernel.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        "David S . Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        "Jakub Kicinski" <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Emil Renner Berthing <kernel@esmil.dk>,
        Richard Cochran <richardcochran@gmail.com>,
        Andrew Lunn <andrew@lunn.ch>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        Peter Geis <pgwipeout@gmail.com>
References: <20230118061701.30047-1-yanhong.wang@starfivetech.com>
 <Y8h/D7I7/2KhgM00@spud>
From:   yanhong wang <yanhong.wang@starfivetech.com>
In-Reply-To: <Y8h/D7I7/2KhgM00@spud>
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On 2023/1/19 7:21, Conor Dooley wrote:
> Hey Yanhong!
> 
> On Wed, Jan 18, 2023 at 02:16:54PM +0800, Yanhong Wang wrote:
>> This series adds ethernet support for the StarFive JH7110 RISC-V SoC. The series
>> includes MAC driver. The MAC version is dwmac-5.20 (from Synopsys DesignWare).
>> For more information and support, you can visit RVspace wiki[1].
>> 	
>> This patchset should be applied after the patchset [2], [3], [4].
>> [1] https://wiki.rvspace.org/
>> [2] https://lore.kernel.org/all/20221118010627.70576-1-hal.feng@starfivetech.com/
>> [3] https://lore.kernel.org/all/20221118011108.70715-1-hal.feng@starfivetech.com/
>> [4] https://lore.kernel.org/all/20221118011714.70877-1-hal.feng@starfivetech.com/
> 
> I've got those series applied, albeit locally, since they're not ready,
> but I cannot get the Ethernet to work properly on my board.
> I boot all of my dev boards w/ tftp, and the visionfive2 is no exception.
> The fact that I am getting to the kernel in the first place means the
> ethernet is working in the factory supplied U-Boot [1].
> 
> However, in Linux this ethernet port does not appear to work at all.
> The other ethernet port is functional in Linux, but not in the factory
> supplied U-Boot.
> 
> Is this a known issue? If it's not, I'll post the logs somewhere for
> you. In case it is relevant, my board is a v1.2a.
> 
> Thanks,
> Conor.
> 
> 1 - U-Boot 2021.10 (Oct 31 2022 - 12:11:37 +0800), Build: jenkins-VF2_515_Branch_SDK_Release-10


No, this is not a issue. 
These patches need to rely on the yt8531 phy driver of motorcomm company
and the corresponding clock delay configuration to work normally, 
and the yt8531 phy driver is being submitted. I have applied the
motorcomm patchs during my test on board v1.2b, so the ethernet cannot work without
the application of the motorcomm patchs. 

For the patchs of yt8531, see [1]

1 - https://patchwork.kernel.org/project/netdevbpf/cover/20230202030037.9075-1-Frank.Sae@motor-comm.com/

Thanks,
Yanhong.