Hi, On Wed, Jun 04, 2014 at 10:12:39AM -0700, David Daney wrote: > On 06/04/2014 08:58 AM, Alex Smith wrote: > >On 04/06/14 15:47, Aaro Koskinen wrote: > >>On Thu, May 29, 2014 at 11:10:01AM +0100, Alex Smith wrote: > >>>Add interface mode detection for Octeon II. This is necessary to detect > >>>the interface modes correctly on the UBNT E200 board. Code is taken > >>>from the UBNT GPL source release, with some alterations: SRIO, ILK and > >>>RXAUI interface modes are removed and instead return disabled as these > >>>modes are not currently supported. > >>> > >>>Tested-by: David Daney <david.daney@xxxxxxxxxx> > >>>Signed-off-by: Alex Smith <alex.smith@xxxxxxxxxx> > >> > >>I tried booting ebb6800 board with these patches. > > There seem to be problems (I think in the interrupt controller code) for > cn68xx based systems in the kernel.org kernel. So I couldn't get it to boot > on my ebb6800 even to the point it tries to initialize the networking > hardware. I tested two boards with 3.15-rc8. They boot fine to shell, it's just modprobing octeon-ethernet that is causing issues. > >>It hangs somewhere in __cvmx_helper_xaui_enable() with XAUI port. Looking > >>at the UBNT GPL package, xaui init is quite different with 68XX specific > >>code paths. Maybe those bits should be added too, or then disable XAUI > >>support as well? > > > >Probably the best thing to do for now would be to disable it. Does it > >boot successfully for you if you switch CVMX_HELPER_INTERFACE_MODE_XAUI > >to disabled? > > ... I don't think it matters. The patch Alex et al. came up with is an > improvement over what is already there. The fact that there are still some > configurations that don't work can be addressed with follow-on patches. Fair enough; previously octeon-ethernet panic()ed on ebb6800 and now it silently hangs - so it's not really any serious regression. If these patches already make it work on ER Pro then good, at least it's a some kind of improvement towards a proper Octeon II support. A.
