NAND flash on MPC8xxx via UPM

NAND flash on MPC8xxx via UPM

[Martin Krause]

Hi all,

we are working on a new board with a MPC8272 cpu. We plan to connect
the NAND flashes over the Local Bus Controller and control it via
the UPM, like described in the freescale application note:
"How to Interface the PowerQUICC II Pro and PowerQUICC III Local
Bus Controller to NAND Flash":

http://www.freescale.com/files/32bit/doc/white_paper/NANDFLASHWP.pdf

I'm wondering, if this had been done already by someone or if there
is a working lowlevel driver? Or perhaps someone is currently working
on a driver or has plans to do so?

Regards,
Martin

TQ-Systems GmbH
Mühlstraße 2, Gut Delling, 82229 Seefeld
Tel. +49 (8153) 93 08-157, Fax +49 (8153) 93 08-7157
martin.krause@tqs.de
www.tq-group.com

Re: NAND flash on MPC8xxx via UPM

[Clemens Koller]

Hello, Martin!

> we are working on a new board with a MPC8272 cpu. We plan to connect
> the NAND flashes over the Local Bus Controller and control it via
> the UPM, like described in the freescale application note:
> "How to Interface the PowerQUICC II Pro and PowerQUICC III Local
> Bus Controller to NAND Flash":
> 
> http://www.freescale.com/files/32bit/doc/white_paper/NANDFLASHWP.pdf

That should be possible. I guess I'll need that in the future, too
for MPC8540.

> I'm wondering, if this had been done already by someone or if there
> is a working lowlevel driver? Or perhaps someone is currently working
> on a driver or has plans to do so?

I have a little MPC8540ish raw test driver kernel 2.6 module which
allows to access something on the Local Bus via GPCM as well as via
UPM. It was a useful thing to experiment around.

Feel free to contact me if you want to have it.

Best greets,
-- 
Clemens Koller
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