linux-kernel - Re: [PATCH v1 3/3] ARM: dts: bcm2711: Enable GENET support for the RPi4

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Message-ID: <bc741ef2-64aa-562c-69cc-f787b35c1058@gmx.net>
Date:   Sat, 12 Oct 2019 19:05:03 +0200
From:   Stefan Wahren <wahrenst@....net>
To:     matthias.bgg@...nel.org, Florian Fainelli <f.fainelli@...il.com>,
        "David S . Miller" <davem@...emloft.net>
Cc:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Matthias Brugger <mbrugger@...e.com>,
        Eric Anholt <eric@...olt.net>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        bcm-kernel-feedback-list@...adcom.com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 3/3] ARM: dts: bcm2711: Enable GENET support for the
 RPi4

Am 12.10.19 um 01:09 schrieb Stefan Wahren:
> Am 11.10.19 um 20:48 schrieb matthias.bgg@...nel.org:
>> From: Matthias Brugger <mbrugger@...e.com>
>>
>> Enable Gigabit Ethernet support on the Raspberry Pi 4
>> Model B.
> I asked some questions about genet to the RPi guys [1] which are
> relevant to this patch (missing clocks and interrupt, MAC address
> assignment) but i didn't get an answer yet.
>
> During my tests with a similiar patch series i noticed that the driver
> won't probe without a MAC address.
>
> How does it get into DT (via U-Boot)?
Okay, the bootloader uses the ethernet0 alias for the genet DT node. So
this should also be added to the RPi 4 DTS. But i consider the MAC
randomize patch still helpful.
>
> [1] -
> https://github.com/raspberrypi/linux/issues/3101#issuecomment-534665860
>