I downloaded the latest mtd cvs and overwrote 2.4.19-rmk4 with the mtd parts from drivers/mtd and include/mtd. I then added back the fujitsu NAND part defs and the balloon specific NAND drivers modifying them to use the new orthodoxy using NAND_ECC_NONE and it is all just fine. The HOWTO will now not suggest patching nand.c as previously posted. I haven't incorporated the latest suggestions of Thomas' re yaffs speedups as that is for Charles to decide on. I also support the per-mtd-partition rather than per-mtd-device ecc mode support as that would enable multiple file systems to reside on the same device. This would have been helpful to me during development. Instead I used two devices. Nick Bane ----- Original Message ----- From: "Thomas Gleixner" To: "Nick Bane" ; "yaffs list" Sent: Friday, November 22, 2002 3:38 PM Subject: Re: Latest CVS > On Friday 22 November 2002 11:00, Nick Bane wrote: > > > 1) Patch the nand.c in mtd to ignore the ecc calculations if NAND_ECC_NONE > > is selected. > > 3) Do ones own nand interface and make sure that NAND_ECC_NONE is asserted > > (be aware that this makes the rest of the chip unsuitable for CRAMFS/JFFS2) > Maybe it would be more conveniant to use the latest nand-code from mtd-cvs,. > where a lot of speedups were done and the selection of ECC is possible > through the filesystem driver, as I posted on 9-25-02 on this list. The > actual JFFS2 code supports this new behaviour and it should be no big deal to > modify yaffs to use it too. So you can use both on one system. > > This would surely increase the chance to get it into the kernel code sometime. > > -- > Thomas > ____________________________________________________ > linutronix - competence in embedded & realtime linux > http://www.linutronix.de > mail: tglx@linutronix.de > > --------------------------------------------------------------------------------------- This mailing list is hosted by Toby Churchill open software (www.toby-churchill.org). If mailing list membership is no longer wanted you can remove yourself from the list by sending an email to yaffs-request@toby-churchill.org with the text "unsubscribe" (without the quotes) as the subject.