diff --git a/target/linux/at91/image/Makefile b/target/linux/at91/image/Makefile
index adb7c6d0ba..ff801dae86 100644
--- a/target/linux/at91/image/Makefile
+++ b/target/linux/at91/image/Makefile
@@ -13,12 +13,7 @@ define Build/at91-install-zImage
     $(CP) $(KDIR)/zImage $@
 endef
 
-ifeq ($(SUBTARGET),sam9x)
-include ./sam9x.mk
-endif
-ifeq ($(SUBTARGET),sama5)
-include ./sama5.mk
-endif
+include $(SUBTARGET).mk
 
 AT91_SD_BOOT_PARTSIZE:=64
 FAT32_BLOCK_SIZE:=1024
diff --git a/target/linux/ath79/image/Makefile b/target/linux/ath79/image/Makefile
index 529baf8f57..a555cfc6d5 100644
--- a/target/linux/ath79/image/Makefile
+++ b/target/linux/ath79/image/Makefile
@@ -68,20 +68,16 @@ define Device/Default
 	append-rootfs | pad-rootfs | append-metadata | check-size
 endef
 
+include $(SUBTARGET).mk
+
 ifeq ($(SUBTARGET),generic)
-include ./generic.mk
-include ./generic-tp-link.mk
-include ./generic-ubnt.mk
-endif
-ifeq ($(SUBTARGET),mikrotik)
-include ./mikrotik.mk
-endif
-ifeq ($(SUBTARGET),nand)
-include ./nand.mk
+include generic-tp-link.mk
+include generic-ubnt.mk
 endif
+
 ifeq ($(SUBTARGET),tiny)
-include ./tiny.mk
-include ./tiny-netgear.mk
-include ./tiny-tp-link.mk
+include tiny-netgear.mk
+include tiny-tp-link.mk
 endif
+
 $(eval $(call BuildImage))
diff --git a/target/linux/layerscape/image/Makefile b/target/linux/layerscape/image/Makefile
index bc65748853..f5a5ad9980 100644
--- a/target/linux/layerscape/image/Makefile
+++ b/target/linux/layerscape/image/Makefile
@@ -43,12 +43,6 @@ define Build/traverse-fit
 	@mv -f $@.new $@
 endef
 
-ifeq ($(SUBTARGET),armv8_64b)
-include armv8_64b.mk
-endif
-
-ifeq ($(SUBTARGET),armv7)
-include armv7.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))
diff --git a/target/linux/mvebu/image/Makefile b/target/linux/mvebu/image/Makefile
index 3a47878069..cbf34c1bc8 100644
--- a/target/linux/mvebu/image/Makefile
+++ b/target/linux/mvebu/image/Makefile
@@ -138,16 +138,6 @@ define Device/NAND-512K
   PAGESIZE := 4096
 endef
 
-ifeq ($(SUBTARGET),cortexa9)
-include cortexa9.mk
-endif
-
-ifeq ($(SUBTARGET),cortexa53)
-include cortexa53.mk
-endif
-
-ifeq ($(SUBTARGET),cortexa72)
-include cortexa72.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))
diff --git a/target/linux/oxnas/image/Makefile b/target/linux/oxnas/image/Makefile
index 644c2b8795..abf83caa1a 100644
--- a/target/linux/oxnas/image/Makefile
+++ b/target/linux/oxnas/image/Makefile
@@ -4,12 +4,6 @@ include $(INCLUDE_DIR)/image.mk
 VMLINUX:=$(BIN_DIR)/$(IMG_PREFIX)-vmlinux
 UIMAGE:=$(BIN_DIR)/$(IMG_PREFIX)-uImage
 
-ifeq ($(SUBTARGET),ox810se)
-include ox810se.mk
-endif
-
-ifeq ($(SUBTARGET),ox820)
-include ox820.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))
diff --git a/target/linux/rockchip/image/Makefile b/target/linux/rockchip/image/Makefile
index 5f605ebfe5..22854d9d02 100644
--- a/target/linux/rockchip/image/Makefile
+++ b/target/linux/rockchip/image/Makefile
@@ -56,8 +56,6 @@ define Device/Default
   DEVICE_DTS = rockchip/$$(SOC)-$(lastword $(subst _, ,$(1)))
 endef
 
-ifeq ($(SUBTARGET),armv8)
-  include armv8.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))
diff --git a/target/linux/sunxi/image/Makefile b/target/linux/sunxi/image/Makefile
index 1b98849a50..01e9742b46 100644
--- a/target/linux/sunxi/image/Makefile
+++ b/target/linux/sunxi/image/Makefile
@@ -42,16 +42,6 @@ define Device/Default
   SUNXI_DTS = $$(SUNXI_DTS_DIR)$$(SOC)-$(lastword $(subst _, ,$(1)))
 endef
 
-ifeq ($(SUBTARGET),cortexa7)
-include cortex-a7.mk
-endif
-
-ifeq ($(SUBTARGET),cortexa8)
-include cortex-a8.mk
-endif
-
-ifeq ($(SUBTARGET),cortexa53)
-include cortex-a53.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))
diff --git a/target/linux/sunxi/image/cortex-a53.mk b/target/linux/sunxi/image/cortexa53.mk
similarity index 100%
rename from target/linux/sunxi/image/cortex-a53.mk
rename to target/linux/sunxi/image/cortexa53.mk
diff --git a/target/linux/sunxi/image/cortex-a7.mk b/target/linux/sunxi/image/cortexa7.mk
similarity index 100%
rename from target/linux/sunxi/image/cortex-a7.mk
rename to target/linux/sunxi/image/cortexa7.mk
diff --git a/target/linux/sunxi/image/cortex-a8.mk b/target/linux/sunxi/image/cortexa8.mk
similarity index 100%
rename from target/linux/sunxi/image/cortex-a8.mk
rename to target/linux/sunxi/image/cortexa8.mk
diff --git a/target/linux/x86/image/Makefile b/target/linux/x86/image/Makefile
index 174c272a51..85c850c128 100644
--- a/target/linux/x86/image/Makefile
+++ b/target/linux/x86/image/Makefile
@@ -146,21 +146,7 @@ define Device/Default
   ARTIFACTS := $$(ARTIFACTS-y)
 endef
 
-ifeq ($(SUBTARGET),64)
-  include 64.mk
-endif
-
-ifeq ($(SUBTARGET),generic)
-  include generic.mk
-endif
-
-ifeq ($(SUBTARGET),geode)
-  include geode.mk
-endif
-
-ifeq ($(SUBTARGET),legacy)
-  include legacy.mk
-endif
+include $(SUBTARGET).mk
 
 $(eval $(call BuildImage))