diff --git a/images/Makefile.imx b/images/Makefile.imx
index 53d4ac8..2d00229 100644
--- a/images/Makefile.imx
+++ b/images/Makefile.imx
@@ -23,28 +23,20 @@
 # %.imximg - convert into i.MX image
 # ----------------------------------------------------------------
 
-$(obj)/%.imximg: $(obj)/% FORCE
-	$(call if_changed,imx_image,$(CFG_$(@F)),)
+define imx_image_rule
+$(eval
+$$(obj)/%.$(strip $(1)): $$(obj)/% FORCE
+	$$(call if_changed,imx_image,$$(CFG_$$(patsubst %.$(strip $(1)),%.imximg,$$(@F))),$(strip $(2)))
+)
+endef
 
-$(obj)/%.pimximg: $(obj)/% FORCE
-	$(call if_changed,imx_image,$(CFG_$(patsubst %.pimximg,%.imximg,$(@F))),\
-	-p $($(patsubst $(obj)/%.pblb,PBL_MEMORY_SIZE_%,$<)))
-
-$(obj)/%.psimximg: $(obj)/% FORCE
-	$(call if_changed,imx_image,$(CFG_$(patsubst %.psimximg,%.imximg,$(@F))),\
-	-p $($(patsubst $(obj)/%.pblb,PBL_MEMORY_SIZE_%,$<)) -s)
-
-$(obj)/%.simximg: $(obj)/% FORCE
-	$(call if_changed,imx_image,$(CFG_$(patsubst %.simximg,%.imximg,$(@F))),-s)
-
-$(obj)/%.usimximg: $(obj)/% FORCE
-	$(call if_changed,imx_image,$(CFG_$(patsubst %.usimximg,%.imximg,$(@F))),-u -s)
-
-$(obj)/%.esimximg: $(obj)/% FORCE
-	$(call if_changed,imx_image,$(CFG_$(patsubst %.esimximg,%.imximg,$(@F))),-e -s)
-
-$(obj)/%.esimximg.dek: $(obj)/% FORCE
-	$(call if_changed,imx_image,$(CFG_$(patsubst %.esimximg,%.imximg,$(@F))),-e -s)
+$(call imx_image_rule,imximg)
+$(call imx_image_rule,pimximg, -p $$($$(patsubst $$(obj)/%.pblb,PBL_MEMORY_SIZE_%,$$<)))
+$(call imx_image_rule,psimximg, -p $$($$(patsubst $$(obj)/%.pblb,PBL_MEMORY_SIZE_%,$$<)) -s)
+$(call imx_image_rule,simximg, -s)
+$(call imx_image_rule,usimximg, -u -s)
+$(call imx_image_rule,esimximg, -e -s)
+$(call imx_image_rule,esimximg.dek, -e -s)
 
 .SECONDEXPANSION:
 $(obj)/%.img.dek: $(obj)/$$(FILE_$$(@F))