PPC32: Add a uImage boot target.

arch/ppc/Makefile

@@ -44,7 +44,7 @@ drivers-$(CONFIG_4xx)		+= arch/ppc/4xx_io/
 drivers-$(CONFIG_8260)		+= arch/ppc/8260_io/
 drivers-$(CONFIG_OCP)		+= arch/ppc/ocp/
 
-BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd pImage vmlinux.sm
+BOOT_TARGETS = zImage zImage.initrd znetboot znetboot.initrd vmlinux.sm
 
 .PHONY: $(BOOT_TARGETS)
 
@@ -55,8 +55,17 @@ AFLAGS_vmlinux.lds.o	:= -Upowerpc
 # All the instructions talk about "make bzImage".
 bzImage: zImage
 
+boot := arch/$(ARCH)/boot
+
 $(BOOT_TARGETS): vmlinux
-	$(Q)$(MAKE) $(build)=arch/ppc/boot $@
+	$(Q)$(MAKE) $(build)=$(boot) $@
+
+uImage: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot)/images $(boot)/images/$@
+
+define archhelp
+  @echo '  uImage          - Create a bootable image for U-Boot / PPCBoot'
+endef
 
 archclean:
 	$(Q)$(MAKE) $(clean)=arch/ppc/boot

arch/ppc/boot/images/Makefile

@@ -2,6 +2,8 @@
 # This dir holds all of the images for PPC machines.
 # Tom Rini	January 2001
 
+MKIMAGE		:= $(srctree)/scripts/mkuboot.sh
+
 extra-y		:= vmlinux.bin vmlinux.gz
 
 OBJCOPYFLAGS_vmlinux.bin := -O binary
@@ -11,5 +13,15 @@ $(obj)/vmlinux.bin: vmlinux FORCE
 $(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,gzip)
 
+quite_cmd_uimage = UIMAGE $@
+      cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A ppc -O linux -T kernel \
+               -C gzip -a 00000000 -e 00000000 -n 'Linux-$(KERNELRELEASE)' \
+               -d $< $@
+
+targets += uImage
+$(obj)/uImage: $(obj)/vmlinux.gz
+	$(call if_changed,uimage)
+	@echo '  Image $@ is ready'
+
 # Files generated that shall be removed upon make clean
-clean-files	:= sImage vmapus vmlinux* miboot* zImage*
+clean-files	:= sImage vmapus vmlinux* miboot* zImage* uImage

arch/ppc/boot/utils/mkimage.wrapper → scripts/mkuboot.sh

 #!/bin/bash
 
 #
-# Build PPCBoot image when `mkimage' tool is available.
+# Build U-Boot image when `mkimage' tool is available.
 #
 
 MKIMAGE=$(type -path mkimage)
 
 if [ -z "${MKIMAGE}" ]; then
 	# Doesn't exist
-	echo '"mkimage" command not found - PPCBoot images will not be built' >&2
+	echo '"mkimage" command not found - U-Boot images will not be built' >&2
 	exit 0;
 fi
 
-# Call "mkimage" to create PPCBoot image
+# Call "mkimage" to create U-Boot image
 ${MKIMAGE} "$@"