On Thu, Oct 18, 2018 at 04:49:26PM +0000, Claudiu Manoil wrote: > I can only advise you to check whether the MACCFG2 register settings are > consistent > at this point, when ping fails. You should check the I/F Mode bits (22-23) > and the > Full Duplex bit (31), in big-endian format. If these do not match the > 100Mbps full > duplex link mode, then it might be that another thread (probably doing > reset_gfar) > changes MACCFG2 concurrently. I think MACCFG2 may be dumped with ethtool -d. > I can get my hands on a board no sooner than maybe next week.
A board won't help you .. I'm running on customer hardware which you don't have access to. After boot up you have MACCFG2 = 0x7205 which is the same as the INIT settings. After the interface is brought up adjust_link() changes to MACCFG2 = 0x7105 which I think is MII. 0x7105 stays after the interface is brought down until gfar_mac_reset sets it to 0x7205 (GMII) .. then adjust link resets it to 0x7105 (MII) .. That goes on and on each time to interface is brought down/up. It seems like this is what your expecting to happen, but it doesn't seems to work %100 of the time. Daniel
