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[POWERPC] add target for building .dtb files

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Call dtc from the Makefile instead of the wrapper script so that the dt
blobs can be generated with a simple make invocation.

Using this patch allows board ports to trigger automatic building of .dtb
files by adding them to the image-y target list.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
This commit is contained in:
Grant Likely 2008-03-25 09:52:46 +11:00 committed by Josh Boyer
parent 1e5ef43e8c
commit e04018e8e4
2 changed files with 16 additions and 12 deletions
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2
arch/powerpc/Makefile
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@ -164,7 +164,7 @@ boot := arch/$(ARCH)/boot
$(BOOT_TARGETS): vmlinux
$(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
bootwrapper_install:
bootwrapper_install %.dtb:
$(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
define archhelp

26
arch/powerpc/boot/Makefile
View File

@ -287,11 +287,11 @@ $(obj)/zImage.%: vmlinux $(wrapperbits)
$(call if_changed,wrap,$*)
# dtbImage% - a dtbImage is a zImage with an embedded device tree blob
$(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(dtstree)/%.dts
$(call if_changed,wrap,$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz)
$(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(obj)/%.dtb
$(call if_changed,wrap,$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/dtbImage.%: vmlinux $(wrapperbits) $(dtstree)/%.dts
$(call if_changed,wrap,$*,$(dtstree)/$*.dts)
$(obj)/dtbImage.%: vmlinux $(wrapperbits) $(obj)/%.dtb
$(call if_changed,wrap,$*,,$(obj)/$*.dtb)
# This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
# prefix
@ -304,14 +304,18 @@ $(obj)/zImage.iseries: vmlinux
$(obj)/uImage: vmlinux $(wrapperbits)
$(call if_changed,wrap,uboot)
$(obj)/cuImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
$(call if_changed,wrap,cuboot-$*,$(dtstree)/$*.dts)
$(obj)/cuImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb)
$(obj)/treeImage.initrd.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
$(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz)
$(obj)/treeImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)
$(obj)/treeImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
$(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts)
$(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
$(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb)
# Rule to build device tree blobs
$(obj)/%.dtb: $(dtstree)/%.dts $(obj)/dtc
$(obj)/dtc -O dtb -o $(obj)/$*.dtb -b 0 $(DTS_FLAGS) $(dtstree)/$*.dts
# If there isn't a platform selected then just strip the vmlinux.
ifeq (,$(image-y))
@ -328,7 +332,7 @@ install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
# anything not in $(targets)
clean-files += $(image-) $(initrd-) zImage zImage.initrd cuImage.* treeImage.* \
otheros.bld
otheros.bld *.dtb
# clean up files cached by wrapper
clean-kernel := vmlinux.strip vmlinux.bin