ARM: add Canon A1100 ROM image generation

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

.gitignore

@@ -46,6 +46,7 @@ barebox.uimage
 barebox.map
 barebox.kwb
 barebox.kwbuart
+barebox.canon-a1100.bin
 barebox-flash-image
 System.map
 Module.symvers

Makefile

@@ -997,7 +997,8 @@ CLEAN_FILES +=	barebox System.map include/generated/barebox_default_env.h \
 		.tmp_kallsyms* common/barebox_default_env* barebox.ldr \
 		scripts/bareboxenv-target barebox-flash-image \
 		Doxyfile.version barebox.srec barebox.s5p barebox.ubl \
-		barebox.uimage barebox.spi barebox.kwb barebox.kwbuart
+		barebox.uimage barebox.spi barebox.kwb barebox.kwbuart \
+		barebox.canon-a1100.bin
 
 # Directories & files removed with 'make mrproper'
 MRPROPER_DIRS  += include/config include2 usr/include

arch/arm/Makefile

@@ -185,6 +185,16 @@ ifeq ($(machine-y),zynq)
 KBUILD_IMAGE := barebox.zynq
 endif
 
+quiet_cmd_canon_a1100_image = DD      $@
+      cmd_canon_a1100_image = scripts/canon-a1100-image $< $@ || \
+	echo "WARNING: Couldn't create Canon A1100 image due to previous errors."
+barebox.canon-a1100.bin: $(KBUILD_BINARY) FORCE
+	$(call if_changed,canon_a1100_image)
+
+ifeq ($(CONFIG_MACH_CANON_A1100),y)
+KBUILD_IMAGE := barebox.canon-a1100.bin
+endif
+
 KWBIMAGE_OPTS = \
 	-c -i $(srctree)/$(BOARD)/kwbimage.cfg -d $(TEXT_BASE) -e $(TEXT_BASE)
 

scripts/canon-a1100-image

@@ -0,0 +1,10 @@
+#!/bin/bash -e
+
+IFILE=$1
+OFILE=$2
+
+dd if=/dev/zero bs=4M count=1 of=$OFILE 2>/dev/null
+dd if=$IFILE of=$OFILE conv=notrunc 2>/dev/null
+
+# 0xffff0000:  fe 3f f0 ea     b       0xffc00000
+echo -n -e "\xfe\x3f\xf0\xea" | dd of=$OFILE bs=64K seek=63 conv=notrunc 2>/dev/null