Blackfin: add init.elf helper code
This creates a standalone ELF that executes just the Blackfin initcode.
This is useful for people who want to program the low level aspects of
the CPU (memory/clocks/etc...) and can easily be used with JTAG for
quick booting while developing.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/cpu/Makefile b/arch/blackfin/cpu/Makefile
index df10f1b..5deaa9e 100644
--- a/arch/blackfin/cpu/Makefile
+++ b/arch/blackfin/cpu/Makefile
@@ -13,7 +13,7 @@
LIB = $(obj)lib$(CPU).o
-EXTRA :=
+EXTRA := init.elf
CEXTRA := initcode.o
SEXTRA := start.o
SOBJS := interrupt.o cache.o
@@ -61,6 +61,11 @@
fi
endif
+$(obj)init.lds: init.lds.S
+ $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P $^ -o $@
+$(obj)init.elf: $(obj)init.lds $(obj)init.o $(obj)initcode.o
+ $(LD) $(LDFLAGS) -T $^ -o $@
+
#########################################################################
# defines $(obj).depend target