kbuild: fix build rule of u-boot-spl.dtb

The build command of u-boot-spl.dtb is not constant, but dependent
on CONFIG_OF_SPL_REMOVE_PROPS.  Use $(call if_changed,...) so that
the change of CONFIG_OF_SPL_REMOVE_PROPS is detected.

Also, add tools/fdtgrep to the dependency to make sure u-boot-spl.dtb
is generated by the up-to-date fdtgrep in case the tool is modified.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Masahiro Yamada 2016-02-05 17:55:14 +09:00 committed by Tom Rini
parent 514ec43892
commit 35b786780f

View file

@ -193,8 +193,8 @@ quiet_cmd_fdtgrep = FDTGREP $@
$(objtree)/tools/fdtgrep -r -O dtb - -o $@ \
$(addprefix -P ,$(subst $\",,$(CONFIG_OF_SPL_REMOVE_PROPS)))
$(obj)/$(SPL_BIN).dtb: dts/dt.dtb
$(call cmd,fdtgrep)
$(obj)/$(SPL_BIN).dtb: dts/dt.dtb $(objtree)/tools/fdtgrep FORCE
$(call if_changed,fdtgrep)
quiet_cmd_cpp_cfg = CFG $@
cmd_cpp_cfg = $(CPP) -Wp,-MD,$(depfile) $(cpp_flags) $(LDPPFLAGS) -ansi \