Hi All
My understanding of the way SPL is intended to be configured is:
(a) You have one config file for both SPL and u-boot. (b) SPL features are selected via SPL-specific options.
I have a need to build SPL with MMC/FAT support, but I don't want u-boot to have MMC/FAT support.
I do however see that quite a few SPL feature selections don't use SPL config definitions though which would seem to violate (b) above.
eg.drivers/mmc/Makefile contains COBJS-$(CONFIG_GENERIC_MMC) += mmc.o
It seems to me there are three ways to address this:
A) Change all those Makefiles to something like:
ifdef CONFIG_SPL_BUILD COBJS-$(CONFIG_SPL_MMC_SUPPORT) += mmc.o else COBJS-$(CONFIG_GENERIC_MMC) += mmc.o endif
B) Modifying the config file with something like
#ifdef CONFIG_SPL_BUILD #define CONFIG_GENERIC_MMC ... #endif
C) Separate config files. One for SPL and the other for u-boot.
Which is the best way to do this?
Thanks
Charles