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

[Grant Likely]

On Tue, Apr 05, 2011 at 03:09:05PM +0800, Shawn Guo wrote:
> 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.

Thanks, fixed in my devicetree/test tree and also added something to
the help text.

g.