[PATCH v2] arm/dt: Add a make rule to build dtb for enabled boards

[Shawn Guo]

On Mon, Apr 04, 2011 at 10:48:27PM -0600, Grant Likely wrote:
> On Mon, Apr 04, 2011 at 11:01:47PM +0800, Shawn Guo wrote:
> > With 'make ARCH=arm dtb', it builds Device Tree Blobs for those boards
> > enabled by build CONFIG.
> > 
> > Signed-off-by: Shawn Guo <shawn.guo at linaro.org>
> > ---
> > It's based on commit fe8e6d0b0e601ca0a63fe768d4b812d5a45a9da7
> > "arm/dt: Add dtb make rule" from Rob Herring.  And it works against
> > Linaro kernel tree.  But it needs to go through mainline review
> > before it gets applied.
> > 
> > Changes since v1:
> > * Take suggestion from Rob Herring to move .dts dection into machine
> >   sepcific Makefile.boot, so that arch/arm/boot/Makefile can be as
> >   clean as it is.
> 
> Looks good, some minor comments below, but I've picked it up and asked
> Nicolas to merge it.
> 
> Cheers,
> g.
> 
> > 
> >  arch/arm/Makefile                     |    3 +++
> >  arch/arm/boot/Makefile                |    2 ++
> >  arch/arm/mach-exynos4/Makefile.boot   |    2 ++
> >  arch/arm/mach-mx5/Makefile.boot       |    5 +++++
> >  arch/arm/mach-omap2/Makefile.boot     |    4 ++++
> >  arch/arm/mach-tegra/Makefile.boot     |    2 ++
> >  arch/arm/mach-versatile/Makefile.boot |    2 ++
> >  7 files changed, 20 insertions(+), 0 deletions(-)
> > 
> > diff --git a/arch/arm/Makefile b/arch/arm/Makefile
> > index d51ab6c..7fd2af9 100644
> > --- a/arch/arm/Makefile
> > +++ b/arch/arm/Makefile
> > @@ -292,6 +292,9 @@ zinstall uinstall install: vmlinux
> >  %.dtb:
> >  	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
> >  
> > +dtb:
> > +	$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
> > +
> 
> Since the target is the same, I've merged this rule with the %.dtb
> rule.  I also renamed the target 'dtbs' because it will build more
> than one .dtb file.
> 
I started with 'dtbs' as target name, and later changed it to 'dtb'
to align with $(dtb-y).  And 'dtbs' looks truly fine for me, but you
may want to change commit message accordingly, as there is
'make ARCH=arm dtb' in it.

-- 
Regards,
Shawn