Le 12/29/17 à 12:21, Florian Fainelli a écrit : > Hi Jochen, > > Le 12/18/17 à 02:44, Jochen Friedrich a écrit : >> Hi Florian, >> >> unfortunately, this doesn't make any difference. >> >> Just out of curiosity, BPI-R1 has pull-down resistors on LED6 and 7 >> (MII_MODE0/1). However, the public available 53125U sheet doesn't >> document these pins: >> >> LED[6] IMP_MODE[0] Pull-up Active low (since IMP Mode is not used) >> LED[7] IMP_MODE[1] Pull-up Active low (since IMP Mode is not used) >> >> Is this MII mode maybe incompatible with Broadcom tags? > > AFAICT, it should not, this is largely independent from enabling > Broadcom tags. > > I have now reproduced this on my BPI-R1 as well and am looking at what > might be going wrong.
OK, so I have been able to find out what was going on. On BCM53125 and earlier switches, we need to do a couple of things for Broadcom tags to be usable: - turn on managed mode (SM_SW_FWD_MODE) - configure Port 8 for IMP mode (B53_GLOBAL_CONFIG, setting bit GC_FRM_MGMT_PORT_MII) After doing that, I can now see the correct outgoing packets on my host, however, the replies don't seem to be delivered to the per-port DSA network devices, and I suspect it's because of stmmac, so I am investigating this now. -- Florian
