From a00cec48ccda0f2b550ad4082d6e95c7cc232925 Mon Sep 17 00:00:00 2001 From: "Mark A. Greer" Date: Fri, 1 Jun 2007 05:55:35 +1000 Subject: [PATCH] [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 Acked-by: David Gibson Signed-off-by: Paul Mackerras --- arch/powerpc/boot/Makefile | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 75e1e5681a..29361d76ef 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -157,14 +157,24 @@ targets += $(image-y) $(initrd-y) $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz +# If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an +# empty string, define 'dts' to be path to the dts +# CONFIG_DEVICE_TREE will have "" around it, make sure to strip them +ifeq ($(CONFIG_WANT_DEVICE_TREE),y) +ifneq ($(CONFIG_DEVICE_TREE),"") +dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\ + ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%) +endif +endif + # Don't put the ramdisk on the pattern rule; when its missing make will try # the pattern rule with less dependencies that also matches (even with the # hard dependency listed). -$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) - $(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz) +$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts) + $(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz) -$(obj)/zImage.%: vmlinux $(wrapperbits) - $(call if_changed,wrap,$*) +$(obj)/zImage.%: vmlinux $(wrapperbits) $(dts) + $(call if_changed,wrap,$*,$(dts)) $(obj)/zImage.iseries: vmlinux $(STRIP) -s -R .comment $< -o $@ @@ -184,10 +194,6 @@ $(obj)/zImage.initrd.holly-elf: vmlinux $(wrapperbits) $(obj)/ramdisk.image.gz $(obj)/uImage: vmlinux $(wrapperbits) $(call if_changed,wrap,uboot) -# CONFIG_DEVICE_TREE will have "" around it, make sure to strip them -dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\ - ,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%) - $(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits) $(call if_changed,wrap,cuboot-$*,$(dts)) -- 2.39.5