[RFC/PATCH] powerpc/bootwrapper: Allow user to specify additional default targets

[Grant Likely]

Anyone had a chance to look at this?  I think this could be used to
eliminate a lot of the platform specific default targets in
arch/powerpc/boot/Makefile by moving them into the defconfigs.  Josh,
Kumar, what are your thoughts?

g.

On Tue, Jul 1, 2008 at 11:59 AM, Grant Likely <grant.likely at secretlab.ca> wrote:
> From: Grant Likely <grant.likely at secretlab.ca>
>
> It is inconvenient to add additional default targets to the bootwrapper
> Makefile for each new board supported which just needs a different dts
> file.  This change allows the defconfig to specify additional build
> targets.
>
> Signed-off-by: Grant Likely <grant.likely at secretlab.ca>
> ---
>
>  arch/powerpc/Kconfig       |   13 +++++++++++++
>  arch/powerpc/boot/Makefile |    3 +++
>  2 files changed, 16 insertions(+), 0 deletions(-)
>
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 3934e26..f09f617 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -458,6 +458,19 @@ config CMDLINE
>          some command-line options at build time by entering them here.  In
>          most cases you will need to specify the root device here.
>
> +config EXTRA_TARGETS
> +       string "Additional default image types"
> +       help
> +         List additional targets to be built by the bootwrapper here (separated
> +         by spaces).  This is useful for targets that depend of device tree
> +         files in the .dts directory.
> +
> +         Targets in this list will be build as part of the default build
> +         target, or when the user does a 'make zImage' or a
> +         'make zImage.initrd'.
> +
> +         If unsure, leave blank
> +
>  if !44x || BROKEN
>  config ARCH_WANTS_FREEZER_CONTROL
>        def_bool y
> diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
> index 1cee2f9..1e38237 100644
> --- a/arch/powerpc/boot/Makefile
> +++ b/arch/powerpc/boot/Makefile
> @@ -270,6 +270,9 @@ ifeq ($(CONFIG_PPC32),y)
>  image-$(CONFIG_PPC_PMAC)       += zImage.coff zImage.miboot
>  endif
>
> +# Allow extra targets to be added to the defconfig
> +image-y        += $(subst ",,$(CONFIG_EXTRA_TARGETS))
> +
>  initrd-  := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
>  initrd-y := $(patsubst zImage%, zImage.initrd%, \
>                $(patsubst dtbImage%, dtbImage.initrd%, \
>
>



-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.