From: Thomas Gleixner <tglx@linutronix.de>
To: Simon Vogl <vogl@soft.uni-linz.ac.at>
Cc: David Woodhouse <dwmw2@infradead.org>,
linux-mtd@lists.infradead.org,
Dan Merillat <harik.attar@gmail.com>,
Jayasri Sangu <JayasriS@aaesys.com>
Subject: Re: Intel P30 flash support MTD 2.4.16 kernel
Date: Sat, 27 May 2006 10:43:05 +0200 [thread overview]
Message-ID: <1148719386.5239.125.camel@localhost.localdomain> (raw)
In-Reply-To: <446ED4ED.80704@soft.uni-linz.ac.at>
On Sat, 2006-05-20 at 10:35 +0200, Simon Vogl wrote:
> > If it fails, turn on DEBUG_CFI_FEATURES in
> > drivers/mtd/chips/cfi_cmdset_0001.c and check
> > for Simultaneous Operations. Some P30 versions erroniously set that
> > bit and fail horribly as a result. I spent a week trying to figure
> > that out.
>
>
> I found out this minute that this could apply to my pxa271 core (with
> on-chip p30 flash!)
> as well - it reports the sim.op. bit, while the data sheet says no.
> Could you tell me what your
> symptoms were, and your cure (a code snippet, preferrably)?
The real cure is to replace the chips by working ones. The hack is to
mask out the simultaneous ops bit when reading the CFI features.
tglx
next prev parent reply other threads:[~2006-05-27 8:42 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-16 22:56 Intel P30 flash support MTD 2.4.16 kernel Jayasri Sangu
2006-05-16 23:32 ` David Woodhouse
2006-05-17 21:50 ` Dan Merillat
2006-05-20 8:35 ` Simon Vogl
2006-05-27 8:43 ` Thomas Gleixner [this message]
2006-05-27 10:06 ` Simon Vogl
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