Am Mittwoch, den 04.06.2014, 19:32 +0200 schrieb Lucas Stach: > Am Mittwoch, den 04.06.2014, 16:41 +0200 schrieb Thierry Reding: > > On Wed, Jun 04, 2014 at 09:23:22AM +0200, Marcel Ziswiler wrote: > > > On 06/04/2014 09:18 AM, Lucas Stach wrote: > > > >I took the Linux Tegra NAND driver from Thierry and cleaned it up quite > > > >a bit. It now works with both ONFI and non-ONFI NAND, at least for > > > >reading. Writing doesn't quite work yet and I've got side-tracked with > > > >other stuff. > > > > > > > >If you are interested in moving this forward I can put up my WIP patches > > > >to some public location. > > > > > > Sounds great, yes. That would be perfect, thanks. > > > > > > We even once got an universal NAND test infrastructure from Micron based on > > > a re-worked Colibri T20 which we could use to validate it with various NAND > > > flash parts. > > > > Excellent, I would've had a hard time digging up those patches. It's > > really been quite a while. > > > I've put up a rebased version of the patches at > > git://git.pengutronix.de/git/lst/linux.git tegra-nand > For those still interested: I've continued to work on this for the last few days and pushed a new version of my WIP to the above location. It is now in a state where the in-kernel mtd tests seem to be happy with it. Also creating/using a filesystem on top of the mtdblock device seems to work properly. I still need to validate that anything using the OOB areas is working properly. The last missing feature is BCH ECC support, but that should be easy to add. I don't know if it still needs some performance tuning. 5MB/s write and 12,5MB/s read on a Colibri T20 seem pretty slow me, but I have nothing to compare with ATM. Marcel could you maybe dig out some benchmarks with L4T? Regards, Lucas -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
