Jocke, >> ok - works for me, i.e. no quad-nop needed anymore. >> > Does both your boards work now? >
MPC8343 @ 400MHz never had any issues - it's still working with your patch applied. MPC8377 works fine up to 533MHz ... 600MHz+ still hangs. Looks like there are more sync missing. >>> I am guessing it takes a while for the stw r4, LBLAWAR1(r3) >>> to hit the HW so one must wait for it, not sure what is >>> best though, sync or isync? >>> >>> >> If it is a timing issue why should have the nops influenced this ? >> I still wonder if this is the real problem and whether we might need >> more (i)syncs elsewhere ... >> > You can try replacing the isync with 4 nops. That works > for me. moving the 4 nops after the blr doesn't work. > > I think it worked earlier by chance but the removal of > the flags changed timing, probably a cache line crossing > at the wrong place. > "works by chance" is probably not what we want. Anyway - good catch. Thanks again. Cheers, André MATRIX VISION GmbH, Talstrasse 16, DE-71570 Oppenweiler Registergericht: Amtsgericht Stuttgart, HRB 271090 Geschaeftsfuehrer: Gerhard Thullner, Werner Armingeon, Uwe Furtner _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
