[RFC 8/8] m68k: uImage generation support

[Yannick GICQUEL <yannick.gicquel@open.eurogiciel.org>]

Adding an arch/m68k/boot subdirectory as output dir
for generated uImage.

Signed-off-by: Yannick GICQUEL <yannick.gicquel@gmail.com>
---
 arch/m68k/Makefile      |  8 +++++++-
 arch/m68k/boot/Makefile | 45 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 1 deletion(-)
 create mode 100644 arch/m68k/boot/Makefile

diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile
index 0b29dcf..bf5cbdd 100644
--- a/arch/m68k/Makefile
+++ b/arch/m68k/Makefile
@@ -118,7 +118,6 @@ core-$(CONFIG_M68360)		+= arch/m68k/68360/
 core-$(CONFIG_M68000)		+= arch/m68k/68000/
 core-$(CONFIG_COLDFIRE)		+= arch/m68k/coldfire/
 
-
 all:	zImage
 
 lilo:	vmlinux
@@ -154,8 +153,15 @@ else
 	bzip2 -1c vmlinux >vmlinux.bz2
 endif
 
+boot := arch/m68k/boot
+
+uImage: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
 archclean:
 	rm -f vmlinux.gz vmlinux.bz2
+	$(Q)$(MAKE) $(clean)=$(boot)
+
 
 install:
 	sh $(srctree)/arch/m68k/install.sh $(KERNELRELEASE) vmlinux.gz System.map "$(INSTALL_PATH)"
diff --git a/arch/m68k/boot/Makefile b/arch/m68k/boot/Makefile
new file mode 100644
index 0000000..af0b110
--- /dev/null
+++ b/arch/m68k/boot/Makefile
@@ -0,0 +1,45 @@
+#
+# arch/m68k/boot/Makefile
+#
+# based on initial file from Freescale m5441x BSP
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+
+MKIMAGE := $(srctree)/scripts/mkuboot.sh
+
+#
+# Assign safe dummy values if these variables are not defined,
+# in order to suppress error message.
+#
+CONFIG_KERNELBASE	?= 0x40020000
+
+targets := uImage
+
+UIMAGE_LOADADDR		:= $(CONFIG_KERNELBASE)
+UIMAGE_ENTRYADDR	:= $(CONFIG_KERNELBASE)
+UIMAGE_COMPRESSION	?= none
+
+export UIMAGE_LOADADDR UIMAGE_ENTRYADDR UIMAGE_COMPRESSION
+
+ifeq ($(UIMAGE_COMPRESSION),gzip)
+UIMAGE_SRCBIN		:= $(obj)/vmlinux.bin.gz
+else
+UIMAGE_SRCBIN		:= $(obj)/vmlinux.bin
+endif
+
+$(obj)/uImage: $(UIMAGE_SRCBIN) FORCE
+	$(call if_changed,uimage)
+	@echo '  Image $@ is ready'
+
+OBJCOPYFLAGS_vmlinux.bin := -I elf32-m68k -O binary
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+clean-files	+= uImage vmlinux.bin vmlinux.bin.gz
+
-- 
1.9.1.286.g5172cb3