On 11/21/2017 03:07 PM, Jochen Friedrich wrote: > Hallo Florian, > >> - 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