DiskOnChip 2000 128Mb problem

Matthew Dharm mdharm at momenco.com
Tue May 13 14:34:58 EDT 2003


> -----Original Message-----
> From: David Woodhouse [mailto:dwmw2 at infradead.org]
> Sent: Tuesday, May 13, 2003 12:40 AM
> To: Matthew Dharm
> Cc: Edward A. Hildum; linux-mtd at lists.infradead.org
> Subject: RE: DiskOnChip 2000 128Mb problem
>
>
> On Tue, 2003-05-13 at 02:42, Matthew Dharm wrote:
> > Well, I found at least one part of the problem.
> >
> > The Linux driver doc2001.c assumes that addresses (in
> DoC_Address) are
> > 23 bits max.  On some parts, the max is 31, so an extra
> write of the
> > address component is needed.
>
> Interesting. If we make this change, does it still work
> with the older
> units?

Doubtful.  The doc2000 'integrated' code actually has a system for
marking certain parts as needed 3 or 4 bytes of address, depending on
the part ID.  I can't use that code, since it can't ID my parts (and I
haven't figured out why).

Matt




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