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/init.S b/arch/blackfin/cpu/init.S
new file mode 100644
index 0000000..f48c113
--- /dev/null
+++ b/arch/blackfin/cpu/init.S
@@ -0,0 +1,9 @@
+#include <asm/blackfin.h>
+ENTRY(_start)
+ sp.l = LO(L1_SRAM_SCRATCH_END - 20);
+ sp.h = HI(L1_SRAM_SCRATCH_END - 20);
+ call _initcode;
+1:
+ emuexcpt;
+ jump 1b;
+END(_start)