[PATCH 2/2] ARM: OMAP4+: Move SRAM data to DT

Lucas Stach l.stach at pengutronix.de
Tue Sep 3 10:35:19 EDT 2013


Am Dienstag, den 03.09.2013, 06:56 -0700 schrieb Russ Dill:
> On Tue, Aug 27, 2013 at 3:11 AM, Rajendra Nayak <rnayak at ti.com> wrote:
> > Use drivers/misc/sram.c driver to manage SRAM on all DT only
> > OMAP platforms (am33xx, am43xx, omap4 and omap5) instead of
> > the existing private implementation.
> >
> > Address and size related data  is removed from mach-omap2/sram.c
> > and now passed to drivers/misc/sram.c from DT.
> >
> > Users can hence use general purpose allocator apis instead of
> > OMAP private ones to manage and use SRAM.
> >
> > Currently there are no users on SRAM on these platfoms.
> >
> > Signed-off-by: Rajendra Nayak <rnayak at ti.com>
> 
> I was trying to experiment with this on am33xx, but I noticed that the
> ioremap region is not marked exec, so it cannot be used to run code.

Could you outline a use-case where you would need to execute code from
SRAM while running in a linux system? I'm curious what you would use
this for.

Regards,
Lucas
-- 
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