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

Michael Grzeschik mgr at
Wed Sep 23 08:28:03 PDT 2015

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?


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