From: Tom Rini <trini@kernel.crashing.org>
PPC32: Select arch/ppc/kernel/head.S on CONFIG_PPC_STD_MMU.
- Don't pick a head*.S by default, instead select head.S on
CONFIG_PPC_STD_MMU. This is more consistent with how we
case things in this file.
EXTRA_AFLAGS := -Wa,-m405
endif
-# Start off with 'head.o', change as needed.
-extra-y := head.o
+extra-$(CONFIG_PPC_STD_MMU) := head.o
extra-$(CONFIG_40x) := head_4xx.o
extra-$(CONFIG_44x) := head_44x.o
extra-$(CONFIG_8xx) := head_8xx.o