Hi Ben, On 6/26/2010 8:22 AM, Ben Warren wrote: > Hi Felix, > > On Fri, Jun 25, 2010 at 4:33 AM, Felix Radensky > <fe...@embedded-sol.com <mailto:fe...@embedded-sol.com>> wrote: > > Hi Ben, > > Peter Tyser seems to be OOO until Monday, so maybe you can comment > on this problem, > as it's network related. > > Peter's patch comes to fix a problem with ethernet not working on > XES 8572 board using > BCM5482S PHY in SGMII mode. On the other hand it breaks eTSEC2 on > P2020RDB > board using VSC8211 PHY in SGMII mode. On P2020RDB not only > u-boot, but also > Linux cannot use eTSEC2. > > > Do you have any suggestions how to make both boards happy ? > > I'm not familiar with how SGMII is configured on this controller, but > it appears that Peter's patch turned of Autonegotiation. Why this > would make a PHY work and a switch not work is curious...
VSC8211 on P2020RDB is a PHY, not a switch. There can be some SGMII related problem in MPC8572 that was fixed in P2020, but it's just a wild guess. > Maybe we should have a CONFIG option for SGMII parameters. Settings > could default to the ones Peter set (since he submitted it in November > and problems are surfacing now), but could be overriden. Does that > sound reasonable? Something like: > > #ifndef CONFIG TSEC_TBICR_SETTINGS > #define TBICR_SETTINGS ( \ > TBICR_PHY_RESET \ > | TBICR_FULL_DUPLEX \ > | TBICR_SPEED1_SET \ > ) > #else > #define TBICR_SETTINGS CONFIG_TSEC_TBICR_SETTINGS > #endif > > Thanks. > > Felix. > > If you put together a patch that does this and test it on your board, > that should be good enough. Peter can try it out when he gets back. > I'll create a patch based on your suggestion later today or tomorrow and test it on P2020RDB and P1020RDB. Felix. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
