Hello Alex, > > I have ported Linux 2.6.9 on different boards and I noticed > > that I have tx carrier errors on my FCC ports. Almost one > > error per xmit. > I have experienced same problem. I suppose you are using the old > fcc driver in /arch/ppc Yes that's right.
> > I reinstalled Linux 2.4.18 on these boards and I have NO ERROR. > > The errors arise with PHY configured in 100M full duplex (or autoneg). > > The FCC has the same duplex as PHY. > Are you sure? In my case, the problem was that while the PHY had autoneg > to full-duplex, the MAC kept in half-duplex mode I have modified some code in fcc_enet.c for Linux 2.4 to manage PHY as I wanted. Perhaps was I in luck to correct something wrong. I checked that the duplex were identical for FCC and PHY and I had no carrier error. > > I think this is not a phy or hardware problem but rather a > FCC configuration mismatch in fcc_enet.c. > Yes. But I think the driver has been obsoleted by fs_enet one, > so modifiying it now has no sense. Yes I retreived fs_enet in Linux 2.6.15 and I'll try it. This driver seems to appear in Linux 2.6.11 tree not before. Is it right ? Thanks very much for your reply. Best regards Laurent
