[U-Boot] [PATCH 2/2] omap3_beagle: xM A/B validate new dtb exits in file system

[Tom Rini]

On Fri, May 02, 2014 at 03:17:59PM -0500, Robert Nelson wrote:
> On Fri, May 2, 2014 at 3:15 PM, robertcnelson <robertcnelson at gmail.com> wrote:
> > From: Robert Nelson <robertcnelson at gmail.com>
> >
> > Fall back to previous dtb used when omap3-beagle-xm-ab.dtb doesn't exist in file system
> >
> > Signed-off-by: Robert Nelson <robertcnelson at gmail.com>
> > CC: Tom Rini <trini at ti.com>
> > CC: Nishanth Menon <nm at ti.com>
> > ---
> >  include/configs/omap3_beagle.h | 8 +++++++-
> >  1 file changed, 7 insertions(+), 1 deletion(-)
> >
> > diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
> > index a1d38ff..06b9006 100644
> > --- a/include/configs/omap3_beagle.h
> > +++ b/include/configs/omap3_beagle.h
> > @@ -248,6 +248,12 @@
> >                         "setenv fdtfile omap3-beagle-xm.dtb; fi; " \
> >                 "if test $fdtfile = undefined; then " \
> >                         "echo WARNING: Could not determine device tree to use; fi; \0" \
> > +       "validatefdt=" \
> > +               "if test $beaglerev = xMAB; then " \
> > +                       "if test ! -e mmc ${bootpart} ${bootdir}/${fdtfile}; then " \
> > +                               "setenv fdtfile omap3-beagle-xm.dtb; " \
> > +                       "fi; " \
> > +               "fi; \0" \
> >         "bootenv=uEnv.txt\0" \
> >         "loadbootenv=fatload mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
> >         "importbootenv=echo Importing environment from mmc ...; " \
> > @@ -263,7 +269,7 @@
> >                 "rootfstype=${ramrootfstype}\0" \
> >         "loadramdisk=load mmc ${bootpart} ${rdaddr} ${bootdir}/${ramdisk}\0" \
> >         "loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
> > -       "loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
> > +       "loadfdt=run validatefdt; load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
> >         "mmcboot=echo Booting from mmc ...; " \
> >                 "run mmcargs; " \
> >                 "bootm ${loadaddr}\0" \
> > --
> > 1.9.2
> 
> Little git send-email failure here, I was trying to send this second
> as patch as [RFC].
> 
> This is my first thoughts of keeping backward compatibility with less
> then v3.15-rc3 kernels.
> 
> Thoughts?

Work for me since everything else in the sequence is MMC-centric.

Acked-by: Tom Rini <trini at ti.com>

-- 
Tom
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