dtbo: Fix dtbo generation rules

Take the first prerequisite (dts overlay file) instead of standard
input.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 70bd0b334bb99be5c4ba01c2778bb0f1462bbf56..d8d9175629baf0b78b6870700a2ae757138b7874 100644 (file)
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -320,7 +320,7 @@ quiet_cmd_dtco = DTCO    $@
 # No generation of assembly file either
 # Modified for U-Boot
 cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
-       $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) - ; \
+       $(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
        $(DTC) -@ -O dtb -o $@ -b 0 \
                -i $(dir $<) $(DTC_FLAGS) \
                -d $(depfile).dtc.tmp $(dtc-tmp) ; \