[PATCH 2/2] pxa: enable L2 if present in XSC3

Nicolas Pitre nico at fluxnic.net
Wed Dec 30 13:06:05 EST 2009


On Wed, 30 Dec 2009, Eric Miao wrote:

> On Wed, Dec 30, 2009 at 3:28 PM, Haojian Zhuang
> <haojian.zhuang at gmail.com> wrote:
> > From 2c4a7d0e907df9a762c5c9f0ec48b3b7860e1f7c Mon Sep 17 00:00:00 2001
> > From: Haojian Zhuang <haojian.zhuang at marvell.com>
> > Date: Wed, 30 Dec 2009 10:02:57 -0500
> > Subject: [PATCH] [ARM] pxa: enable L2 if present in XSC3
> >
> > Check whether L2 is present or not in XSC3. If it's present, enable L2
> > immediately.
> >
> > Disabling L2 after L2 is enabled that would result in unpredicatable behavior
> > of XSC3 processor.
> >
> 
> You may want to enclose this with #ifdef CONFIG_CACHE_XSC3L2 .. #endif
> at least, to allow L2 to remain disabled even if L2 is present.

Also... might be a good idea to invalidate L2 before enabling it.


Nicolas



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