Re: Help! AMD Config Advice

Eli Carter
2003-01-09T16:37:15Z

Frank R Callaghan wrote:
> Is there no solution to this question ?
> am I asking the wronge group ?
> is it so stupid it does not deserve a responce ?
>
> ---------- Forwarded Message ----------
>
> Subject: AMD Config Advice
> Date: Thu, 19 Dec 2002 15:31:19 -0500
> From: Frank R Callaghan <f.callaghan@ieee.org>
> To: LinuxMTD <linux-mtd@lists.infradead.org>
>
> Hi,
>
> I undrstand this may be a very basic question, but here go's
>
> I am looking to use an AMD flash chip on my pc104 card
> to store some non-volatile data, the chip is a 2MB part AMD29F016,
> the BIOS is in the top 128KB of the first mega-byte(do not want to
> overwrite).
>
> After setting up the kernel with MDT I get
> cat /proc/mtd
> dev: size erasesize name
> mtd0: 00200000 00010000 "Physically mapped flash"
>
> ok but I only need the second 1MB - is there some way to
> prevent the first meg being mapped/used ?
>
> Kernal Version 2.4.19 with:
[snip config]
> also I'm looking to use jffs2 as the file system - maybe I can partion it
> to only use the second meg ???

You should be able to partition the MTD device by the commandline or a
redboot table.
I believe jffs2 requires at least 5 'sectors' on the chip, though I've
not used it. You would need to check the layout of your device has
enough for it.
That's about the extent of my knowledge at the moment... I hope it gives
you enough to google on...

HTH,

Eli
--------------------. "If it ain't broke now,
Eli Carter \ it will be soon." -- crypto-gram
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