boards: phytec-som-am335x: ethernet broken after reset

Teresa Remmet t.remmet at
Wed Sep 23 23:37:31 PDT 2015

Hello Michael,

can you give me a little bit more information about the hardware you
are using? As the phytec-som-am335x, includes 3 different modules.
Names of the images in use and hardware revision of the som whould be

I have made a quick test it with a phycore som on master. It worked for


Am Mittwoch, den 23.09.2015, 17:28 +0200 schrieb Michael Grzeschik:
> Hi Teresa,
> With the current code for the phytec-som-am335x, the ethernet works only
> after the first powerup. If you soft reset the module the network won't
> work anymore.
> ...
> cpsw 4a100000.ethernet: detected phy mask 0x6
> mdio_bus: miibus0: probed
> cpsw 4a100000.ethernet: Failed to setup slave 0: I/O error
> ...
> That happens in the second boot. The phy is probably in a wrong state and
> won't communicate over MDIO.
> Do you have any ideas?
> Thanks,
> Michael

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