[U-Boot] [PATCH v5] SPL: Makefile: Build a separate autoconf.mk for SPL

Tom Rini trini at ti.com
Tue Aug 20 15:02:22 CEST 2013


On Mon, Aug 19, 2013 at 04:14:14PM +0800, ying.zhang at freescale.com wrote:

> From: Ying Zhang <b40530 at freescale.com>
> 
> SPL defines CONFIG_SPL_BUILD but this does not percolate to the
> autoconf.mk Makefile.  As a result the build breaks when
> CONFIG_SPL_BUILD is used in the board-specific include header file.
> With this, there is a possibility of having a CONFIG option defined in
> the header file but not defined in the Makefile causing all kinds of
> build failure and problems.
> 
> It also messes things for up, for example, when one might want to
> undefine options to keep the SPL small and doesn't want to be stuck
> with the CONFIG options used for U-boot.  Lastly, this also avoids
> defining special CONFIG_SPL_ variables for cases where some options
> are required in U-boot but not in SPL.
> 
> We add a spl-autoconf.mk rule that is generated for SPL with the
> CONFIG_SPL_BUILD flag and conditionally include it for SPL builds.
> 
> Signed-off-by: Joel A Fernandes <joelagnel at ti.com>
> Signed-off-by: Ying Zhang <b40530 at freescale.com>

After fixing up the author and changing Joel's email to his current one,
applied to u-boot/master (and boot tested on am335x_evm_usbspl), thanks!

-- 
Tom
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