M-System's DiskOnChip

David Woodhouse dwmw2 at infradead.org
Wed Dec 3 05:12:07 EST 2003

On Wed, 2003-12-03 at 10:53 +0100, Esben Nielsen wrote:
> 1) They provide a TFFS-driver but there huge problems with license (it
> isn't GPL). 

We have proper GPL'd support for this too. For the DiskOnChip 2000 and
Millennium it's fine. For the DiskOnChip Millennium Plus (and also the
larger, new DiskOnChip 2000 which uses a newer TFFS), we still have
problems with the bad block management, because it's not implemented.

> 2) We can skip M-system's TFFS and jump to JFFS2. But how stable is
> that on DiskOnChip? As far as I could see from the website there are
> still problems with bad blocks support. How does that affect the
> stability? What is your experience?
> Is it stable enough for production use?

The bad block management is unimplemented. Do not use JFFS2 on
DiskOnChip until someone's spent a couple of weeks implementing it.


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