On 11/21/2017 03:07 PM, Jochen Friedrich wrote:

Hallo Florian,

quoted

- what is the value of page 02, register 3 during b53_switch_detect()? A
managed switch should have this set to 0x3, whereas I would expect an
unmanaged switch to be 0x0

The register has the value 3.

OK, because this is a 53125S, it should support Broadcom tags correctly,
not clear yet what is happening. Just to make sure, you are using
arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts as the DTS for this platform,
right?

If so, can you provide the ethtool -k eth0 output and/or see if
disabling HW VLAN tag support for eth0 helps in any way?
-- 
Florian