linux-kernel - Re: [PATCHv2 1/2] MTD: cfi_cmdset_0002: Add reboot notifier for AMD flashes

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Date:	Tue, 27 Apr 2010 14:47:37 +0100
From:	Jamie Lokier <jamie@...reable.org>
To:	Wolfram Sang <w.sang@...gutronix.de>
Cc:	Kevin Cernekee <cernekee@...il.com>, linux-mtd@...ts.infradead.org,
	dwmw2@...radead.org, linux-kernel@...r.kernel.org,
	saeed.bishara@...il.com, dedekind1@...il.com
Subject: Re: [PATCHv2 1/2] MTD: cfi_cmdset_0002: Add reboot notifier for AMD flashes

Wolfram Sang wrote:
> On Wed, Apr 14, 2010 at 05:57:33PM -0700, Kevin Cernekee wrote:
> > Ensure that the flash device is in a quiescent state before rebooting.
> > The implementation is closely modeled after the cfe_cmdset_0001 reboot
> > notifier, commit 963a6fb0a0d336d0513083b7e4b5c3ff9d6d2061 .
> > 
> > Signed-off-by: Kevin Cernekee <cernekee@...il.com>
> 
> Yes, if this is present for Intel, it should be present for AMD, IMHO.
> 
> Acked-by: Wolfram Sang <w.sang@...gutronix.de>
> 
> Still, the correct solution is to wire the correct reset-line to the flashes.
> Above patch will not help if a watchdog kicks in. Been there :(

Isn't the patch intended to handle _software_ resets where the hard reset
line isn't toggled?

-- Jamie
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