[U-Boot] How to adapt top-level Makefile tricks to current boards.cfg

[os user]

Hi All,

In top-level Makefile, there are some tricks to support more config
items. For example,

Lite5200_config				\
Lite5200_LOWBOOT_config			\
Lite5200_LOWBOOT08_config		\
icecube_5200_config			\
icecube_5200_LOWBOOT_config		\
icecube_5200_LOWBOOT08_config		\
icecube_5200_DDR_config			\
icecube_5200_DDR_LOWBOOT_config		\
icecube_5200_DDR_LOWBOOT08_config:	unconfig
	@mkdir -p $(obj)include
	@mkdir -p $(obj)board/icecube
	@[ -z "$(findstring LOWBOOT_,$@)" ] || \
		if [ "$(findstring DDR,$@)" ] ; \
			then echo "TEXT_BASE = 0xFF800000" >$(obj)board/icecube/config.tmp ; \
			else echo "TEXT_BASE = 0xFF000000" >$(obj)board/icecube/config.tmp ; \
		fi
	@[ -z "$(findstring LOWBOOT08,$@)" ] || \
		echo "TEXT_BASE = 0xFF800000" >$(obj)board/icecube/config.tmp
	@[ -z "$(findstring DDR,$@)" ] || \
		echo "#define CONFIG_MPC5200_DDR" >>$(obj)include/config.h
	@$(MKCONFIG) -n $@ -a IceCube powerpc mpc5xxx icecube


If we want to apply this kind of trick to current boards.cfg, what
should we do? Add a lot of items in boards.cfg?

Thanks.