linux-kernel - Re: [PATCHv2] ARM: OMAP2+: Add support for thumb mode on DT booted N900

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Message-ID: <20140221230821.GB5342@atomide.com>
Date:	Fri, 21 Feb 2014 15:08:21 -0800
From:	Tony Lindgren <tony@...mide.com>
To:	Sebastian Reichel <sre@...ian.org>
Cc:	linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org,
	Pali Rohár <pali.rohar@...il.com>,
	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
Subject: Re: [PATCHv2] ARM: OMAP2+: Add support for thumb mode on DT booted
 N900

* Sebastian Reichel <sre@...ian.org> [140217 13:33]:
> Without enabling the workaround for ARM errata 430973 thumb
> compiled userland crashes randomly on the Nokia N900.
> 
> Signed-off-by: Sebastian Reichel <sre@...ian.org>
> Reviewed-by: Pavel Machek <pavel@....cz>
> ---
> Hi,
> 
> This is PATCHv2 for the thumb errata workaround for N900 DT
> boot, which should go into 3.14-rc.
> 
> Changes since PATCHv1:
>  * Add Reviewed-By: Pavel Machek
>  * Add more verbose warning about the errata as suggested by Pavel
> 
> I did not increase the verbose level, since the next higher verbose
> level is pr_err and the message is not an error.
> 
> I think it would make sense to update the Kconfig entry for the errata to
> enable the workaround by default for the Nokia N900. That should be done in
> its own patch, though.
> 
> Apart from that it would be nice if errata workaround could be enabled
> via DeviceTree instead of kernel configuration. This will require some
> discussion though, so I think we should start with this patch for now.

Thanks applying into omap-for-v3.14/fixes.

Tony
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