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authorMark A. Greer <mgreer@mvista.com>2007-05-31 15:55:35 -0400
committerPaul Mackerras <paulus@samba.org>2007-06-25 03:00:09 -0400
commita00cec48ccda0f2b550ad4082d6e95c7cc232925 (patch)
tree6f176b17f61cc8b45d57d23609cf422103e43c14 /arch/powerpc/boot/Makefile
parent941b7adf347dc3e6e2bf87b2af1ef8a42b617a63 (diff)
[POWERPC] When appropriate, wrap device tree with zImage
There are 2 config options that indicate whether the platform being built has a device tree source file associated with it. Namely, CONFIG_WANT_DEVICE_TREE and CONFIG_DEVICE_TREE. When CONFIG_WANT_DEVICE_TREE is 'y' and CONFIG_DEVICE_TREE isn't an empty string, automatically wrap the specified device tree with the zImage being built. To achieve this, the 'dts' variable will only be set when the conditions above are true. The changes to the zImage.initrd.% and zImage.% rules cause the device tree to be wrapped when 'dts' is set; otherwise, they will work as they previosly did (i.e., build a zImage with no device tree). Signed-off-by: Mark A. Greer <mgreer@mvista.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/boot/Makefile')
-rw-r--r--arch/powerpc/boot/Makefile22
1 files changed, 14 insertions, 8 deletions
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 75e1e5681ad8..29361d76ef1b 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -157,14 +157,24 @@ targets += $(image-y) $(initrd-y)
157 157
158$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz 158$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
159 159
160# If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an
161# empty string, define 'dts' to be path to the dts
162# CONFIG_DEVICE_TREE will have "" around it, make sure to strip them
163ifeq ($(CONFIG_WANT_DEVICE_TREE),y)
164ifneq ($(CONFIG_DEVICE_TREE),"")
165dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
166 ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%)
167endif
168endif
169
160# Don't put the ramdisk on the pattern rule; when its missing make will try 170# Don't put the ramdisk on the pattern rule; when its missing make will try
161# the pattern rule with less dependencies that also matches (even with the 171# the pattern rule with less dependencies that also matches (even with the
162# hard dependency listed). 172# hard dependency listed).
163$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) 173$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts)
164 $(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz) 174 $(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz)
165 175
166$(obj)/zImage.%: vmlinux $(wrapperbits) 176$(obj)/zImage.%: vmlinux $(wrapperbits) $(dts)
167 $(call if_changed,wrap,$*) 177 $(call if_changed,wrap,$*,$(dts))
168 178
169$(obj)/zImage.iseries: vmlinux 179$(obj)/zImage.iseries: vmlinux
170 $(STRIP) -s -R .comment $< -o $@ 180 $(STRIP) -s -R .comment $< -o $@
@@ -184,10 +194,6 @@ $(obj)/zImage.initrd.holly-elf: vmlinux $(wrapperbits) $(obj)/ramdisk.image.gz
184$(obj)/uImage: vmlinux $(wrapperbits) 194$(obj)/uImage: vmlinux $(wrapperbits)
185 $(call if_changed,wrap,uboot) 195 $(call if_changed,wrap,uboot)
186 196
187# CONFIG_DEVICE_TREE will have "" around it, make sure to strip them
188dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
189 ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%)
190
191$(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits) 197$(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits)
192 $(call if_changed,wrap,cuboot-$*,$(dts)) 198 $(call if_changed,wrap,cuboot-$*,$(dts))
193 199