diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index b311d17..5262dca 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -217,8 +217,8 @@
 
 ifeq ($(CONFIG_ARCH_IMX9)$(CONFIG_ARCH_IMX8ULP), y)
 
-quiet_cmd_imx9_check = CHECK    $@
-cmd_imx9_check = $(srctree)/tools/imx9_image.sh $@
+quiet_cmd_cpp_cfg_imx9_check = CHECK    $@
+cmd_cpp_cfg_imx9_check = $(CPP) $(cpp_flags) -D__ASSEMBLY__ -x c -o $@ $< && $(srctree)/tools/imx9_image.sh $@
 
 SPL: spl/u-boot-spl.bin spl/u-boot-spl.cfgout u-boot-container.cfgout FORCE
 
@@ -227,15 +227,13 @@
 
 spl/u-boot-spl.cfgout: $(IMX_CONFIG) FORCE
 	$(Q)mkdir -p $(dir $@)
-	$(call if_changed_dep,cpp_cfg)
-	$(call if_changed,imx9_check)
+	$(call if_changed_dep,cpp_cfg_imx9_check)
 
 spl/u-boot-spl-ddr.bin: spl/u-boot-spl.bin spl/u-boot-spl.cfgout FORCE
 
 u-boot-container.cfgout: $(IMX_CONTAINER_CFG) FORCE
 	$(Q)mkdir -p $(dir $@)
-	$(call if_changed_dep,cpp_cfg)
-	$(call if_changed,imx9_check)
+	$(call if_changed_dep,cpp_cfg_imx9_check)
 
 flash.bin: spl/u-boot-spl-ddr.bin container.cfgout FORCE
 	$(call if_changed,mkimage)