From: Tony Lindgren <tony@atomide.com>
To: "Shilimkar, Santosh" <santosh.shilimkar@ti.com>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>, linux-omap@vger.kernel.org
Subject: Re: [PATCH 2/2] arm: omap: sram: skip the first 16K on OMAP3 HS
Date: Thu, 30 Aug 2012 13:40:30 -0700 [thread overview]
Message-ID: <20120830204030.GD1303@atomide.com> (raw)
In-Reply-To: <CAMQu2gy+4oXgekvqbXDQ9kRr7hmojAZ+RqiZRg97uG1OBo_Ndg@mail.gmail.com>
* Shilimkar, Santosh <santosh.shilimkar@ti.com> [120829 08:30]:
> On Wed, Aug 29, 2012 at 8:24 AM, Aaro Koskinen <aaro.koskinen@iki.fi> wrote:
> > In some OMAP3 HS devices (at least Nokia N9 and N950), the public SRAM
> > seems to conflict with secure portition of SRAM. When booting the 3.6-rc3
> > kernel (and also earlier) on these devices, the kernel gets tainted with
> > tons of the following warnings:
> >
> > [ 6.894348] In-band Error seen by MPU at address 0
> > [...]
> > [ 6.894378] WARNING: at arch/arm/mach-omap2/omap_l3_smx.c:162
> >
> > Fix this by skipping the first 16K of the public SRAM. (Note that the
> > mapping could not be changed, as it resulted in secure monitor call
> > failure in save_secure_sram().)
> >
> > This will leave 12K SRAM available that should be still sufficient. The
> > patch has been boot tested with vanilla 3.6-rc3 on N900, N950 and N9.
> >
> > Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
> > ---
> > arch/arm/plat-omap/sram.c | 9 ++++++---
> > 1 files changed, 6 insertions(+), 3 deletions(-)
> >
> Looks good.
>
> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Thanks applying both into fixes. Aaro, note that now that we're merging
patches via the arm soc tree, let's use "ARM: OMAP: " for the subject so
I don't need to fix it up ;)
Tony
next prev parent reply other threads:[~2012-08-30 20:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-29 15:24 [PATCH 1/2] arm: omap: sram: fix OMAP4 errata handling Aaro Koskinen
2012-08-29 15:24 ` [PATCH 2/2] arm: omap: sram: skip the first 16K on OMAP3 HS Aaro Koskinen
2012-08-29 15:29 ` Shilimkar, Santosh
2012-08-30 20:40 ` Tony Lindgren [this message]
2012-09-26 13:01 ` Jarkko Nikula
2012-08-29 15:27 ` [PATCH 1/2] arm: omap: sram: fix OMAP4 errata handling Shilimkar, Santosh
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