[U-Boot] [PATCH 3/7] 86xx: Unlock l1 cache unconditionally

[Peter Tyser]

On Sat, 2009-07-11 at 01:07 +0200, Wolfgang Denk wrote:
> Dear Peter Tyser,
> 
> In message <1247259105.32367.22.camel at localhost.localdomain> you wrote:
> >
> > The only platforms the define unlock_ram_in_cache() are 83xx, 85xx,
> > 86xx, and 74xx_7xx.
> > 
> > It looks like the most of them had "issues" in their implementation that
> > could explain why there weren't enabled:
> > 83xx - ade50c7fa1b16ef98be17e9c3ae286aecf4f5605,
> > 6eb2a44e27919fdc601e0c05404b298a7602c0e3
> > 
> > 86xx - 392438406041415fe64ab8748ec5ab5ad01d1cf7
> > 
> > 74xx - d685b74c64a38849f1a129b3ab846fbf67dd937e
> > 
> > 85xx - this one works
> > 
> > My best guess was all the non-85xx implementations had bugs or other
> > issues that caused U-Boot to become unstable after unlocking the cache.
> > Perhaps those bugs are fixed now, but I only have 86xx hardware to test
> > on.  I've been running a few 86xx boards with the cache unlocked with no
> > noticeable problems.
> 
> Thanks for the analysis. So let's go ahead and do this globally.

I'll submit a patch.  Hopefully someone with an 83xx and 74xx/7xx board
can give it a shot before you apply it.

Best,
Peter