Dear "Liu Dave-R63238",
In message
<d7cca83bb0796c49bc0bb53b6ab12089515...@zch01exm21.fsl.freescale.net> you wrote:
> > Previously, non-e500 architectures only unlocked their data
> > cache which
> > was used as early RAM when booting to Linux using the "bootm" command.
> > This change causes all PPC boards with
> > CONFIG_SYS_INIT_RAM_LOCK defined
> > to unlock their data cache during U-Boot's initialization. This
> > improves U-Boot performance and provides a common cache state when
> > booting to different OSes.
> >
> > Signed-off-by: Peter Tyser <pty...@xes-inc.com>
> > ---
> > I've tested this on 86xx boards, it'd be great if someone
> > could test on
> > 83xx and 74xx/7xx. 85xx boards should not be affected by this change.
> >
> > This change assumes
> > http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/63423
> > has already been applied, or the lib/ppc patches in the diffs
> > below can
> > be changed to lib_ppc.
>
> I'm afraid some 83xx boards will not work after the patch is applied.
> It is some was assuming the data cache locked. (that is cache-inhibited)
Are you just concerned, or did you actually test the patch, with
negative results?
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
Perfection is reached, not when there is no longer anything to add,
but when there is no longer anything to take away.
- Antoine de Saint-Exupery
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