On Thu, Oct 23, 2008 at 01:30:08PM +0200, Stefan Roese wrote: > Hi Wolfgang, > > On Thursday 23 October 2008, Wolfgang Denk wrote: > > > > Should we not backout the autocalib patches that cause the problem > > > > until a stable working solution is found? > > > > > > Not sure. My hope is that AMCC find a solution quickly. They should > > > receive the failing board this week. > > > > > > And they already did send a "fix" (more a workaround) for this problem: > > > > > > [PATCH v2] ppc4xx: Fix DDR2 auto calibration on Kilauea 600MHz > > > > > > which you rejected. So I suggest to wait for a few days. > > > > Well, that was one full month ago, and nothing happened since.1s > > That's not correct. One patch got checked in which definitely made the > situation better: > > f8a00dea841d5d75de1f8e8107e90ee1beeddf5f > > ppc4xx: Reset and relock memory DLL after SDRAM_CLKTR change > > After changing SDRAM_CLKTR phase value rerun the memory preload > initialization sequence (INITPLR) to reset and relock the memory > DLL. Changing the SDRAM_CLKTR memory clock phase coarse timing > adjustment effects the phase relationship of the internal, to the > PPC chip, and external, to the PPC chip, versions of MEMCLK_OUT. > > Signed-off-by: Adam Graham <[EMAIL PROTECTED]> > Signed-off-by: Victor Gallardo <[EMAIL PROTECTED]> > Signed-off-by: Stefan Roese <[EMAIL PROTECTED]> > > Unfortunately it didn't fix all problems. AMCC already provided another patch > for testing purposes. Not to the list but to me (and you) directly. Please > find it attached again. Would be great if Markus could test it on the failing > Kilauea.
I tested it and it's still failing. I dare say the patch makes things worse. After about 20 hard resets the board didn't reach the u-boot console a single time. :-( Thanks Markus -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: [EMAIL PROTECTED]") _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
