arm: imx8qxp: build u-boot-dtb.cfgout before checking files
Build u-boot-dtb.cfgout before checking files, otherwise
u-boot-dtb.cfgout is generated at late stage and cause final image not
generated.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 53d9e5f..eb84315 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -104,7 +104,7 @@
ifeq ($(CONFIG_ARCH_IMX8), y)
CNTR_DEPFILES := $(srctree)/tools/imx_cntr_image.sh
IMAGE_TYPE := imx8image
-DEPFILE_EXISTS := $(shell if [ -f u-boot-dtb.cfgout ]; then $(CNTR_DEPFILES) u-boot-dtb.cfgout; echo $$?; fi)
+DEPFILE_EXISTS := $(shell $(CPP) $(cpp_flags) -x c -o u-boot-dtb.cfgout $(srctree)/$(IMX_CONFIG); if [ -f u-boot-dtb.cfgout ]; then $(CNTR_DEPFILES) u-boot-dtb.cfgout; echo $$?; fi)
else
IMAGE_TYPE := imximage
DEPFILE_EXISTS := 0