+define BuildFirmware/OF
+ $(call MkImageLzmaDtb,$(2),$(3),$(5))
+ $(call MkImageSysupgrade/$(1),$(1),$(2),$(4),$(6))
+endef
+
+define BuildFirmware/OF/initramfs
+ $(call MkImageLzmaDtb,$(2),$(3))
+ $(CP) $(KDIR)/vmlinux-$(2).uImage $(call imgname,$(1),$(2))-uImage.bin
+endef
+
+
+# Build images for default ralink layout for 4MB flash
+# kernel + roots = 0x3b0000
+# $(1) = squashfs/initramfs
+# $(2) = lowercase board name
+# $(3) = dts file
+ralink_default_fw_size_4M=3866624
+BuildFirmware/Default4M/squashfs=$(call BuildFirmware/OF,$(1),$(2),$(3),$(ralink_default_fw_size_4M))
+BuildFirmware/Default4M/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3))
+
+# Build images for default ralink layout for 8MB flash
+# kernel + roots = 0x7b0000
+# $(1) = squashfs/initramfs
+# $(2) = lowercase board name
+# $(3) = dts file
+ralink_default_fw_size_8M=8060928
+BuildFirmware/Default8M/squashfs=$(call BuildFirmware/OF,$(1),$(2),$(3),$(ralink_default_fw_size_8M))
+BuildFirmware/Default8M/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3))
+
+# Build images for a custom sized flash layout
+# $(1) = squashfs/initramfs
+# $(2) = lowercase board name
+# $(3) = dts file
+# $(4) = kernel + rootfs size
+BuildFirmware/CustomFlash/squashfs=$(call BuildFirmware/OF,$(1),$(2),$(3),$(4),$(5),$(6))
+BuildFirmware/CustomFlash/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3))
+
+# wrappers for boards that have 4MB and 8MB versions
+define BuildFirmware/DefaultDualSize/squashfs
+ $(call BuildFirmware/Default4M/$(1),$(1),$(2)-4M,$(3)-4M)
+ $(call BuildFirmware/Default8M/$(1),$(1),$(2)-8M,$(3)-8M)
+endef
+define BuildFirmware/DefaultDualSize/initramfs
+ $(call BuildFirmware/OF/initramfs,$(1),$(2)-4M,$(3)-4M)
+ $(call BuildFirmware/OF/initramfs,$(1),$(2)-8M,$(3)-8M)
+endef
+
+# Some boards need a special header inside the uImage to make them bootable
+define BuildFirmware/CustomFlashFactory/squashfs
+ $(call BuildFirmware/CustomFlash/$(1),$(1),$(2),$(3),$(4))
+ $(call BuildFirmware/CustomFlash/$(1),$(1),$(2),$(3),$(4),$(5),$(6))
+endef
+BuildFirmware/CustomFlashFactory/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3))
+
+# sign an image to make it work with edimax tftp recovery
+define BuildFirmware/Edimax/squashfs
+ $(call BuildFirmware/OF,$(1),$(2),$(3),$(4))
+ if [ -e "$(call sysupname,$(1),$(2))" ]; then \
+ mkedimaximg -i $(call sysupname,$(1),$(2)) \
+ -o $(call imgname,$(1),$(2))-factory.bin \
+ -s $(5) -m $(6) -f $(7) -S $(8); \
+ fi