diff --git a/board/cray/L1/patchme b/board/cray/L1/patchme
new file mode 100644
index 0000000..e77ee7e
--- /dev/null
+++ b/board/cray/L1/patchme
@@ -0,0 +1,30 @@
+# master confi.mk
+echo "CROSS_COMPILE = powerpc-linux-"	>>include/config.mk
+
+# patch the examples/Makefile to ignore return value from OBJCOPY
+sed  -e 's/$(OBJCOPY)/-&/' < examples/Makefile > examples/makefile
+
+# add a built target for mkimage on the target architecture
+sed  -e 's/^all:.*$/all: .depend envcrc mkimage mkimage.ppc/' < tools/Makefile > tools/makefile
+
+cat <<EOF >>tools/makefile
+mkimage.ppc : mkimage.o.ppc crc32.o.ppc
+	powerpc-linux-gcc -msoft-float -Wall -Wstrict-prototypes -o \$@ \$^
+	powerpc-linux-strip $@
+
+XFLAGS="-D__KERNEL__  -I../include -DCONFIG_4xx -Wall -Wstict-prototypes"
+mkimage.o.ppc: mkimage.c
+	powerpc-linux-gcc -msoft-float -Wall -I../include -c -o \$@ \$^
+
+crc32.o.ppc: crc32.c
+	powerpc-linux-gcc -msoft-float -Wall -I../include -c -o \$@ \$^
+
+EOF
+
+# make an image by default out of the u-boot image
+sed  -e 's/^all:.*$/all: u-boot.image /' < Makefile > makefile
+cat <<EOF >>makefile
+u-boot.image:  u-boot.bin
+	tools/mkimage -A ppc -O linux -T firmware -C none -a 0 -e 0 -n U-Boot -d \$^ \$@
+
+EOF