linux-kernel - Re: [PATCH net-next] dt-bindings: net: xilinx: document xilinx emaclite driver binding

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Date:   Mon, 30 May 2022 21:09:34 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Radhey Shyam Pandey <radheys@...inx.com>,
        Radhey Shyam Pandey <radhey.shyam.pandey@....com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "harini.katakam@....com" <harini.katakam@....com>,
        "michal.simek@....com" <michal.simek@....com>
Cc:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "git@....com" <git@....com>
Subject: Re: [PATCH net-next] dt-bindings: net: xilinx: document xilinx
 emaclite driver binding

On 30/05/2022 15:21, Radhey Shyam Pandey wrote:
>>
>>> +        local-mac-address = [00 0a 35 00 00 00];
>>
>> Each device should get it's own MAC address, right? I understand you
>> leave it for bootloader, then just fill it with 0.
> 
> The emaclite driver uses of_get_ethdev_address() to get mac from DT.
> i.e  'local-mac-address' if present in DT it will be read and this MAC 
> address is programmed in the MAC core. So I think it's ok to have a 
> user defined mac-address (instead of 0s) here in DT example?

And you want to program the same MAC address in every device in the
world? How would that work?



Best regards,
Krzysztof