-DEVICE_VARS += TPLINK_HWID TPLINK_HWREV TPLINK_FLASHLAYOUT TPLINK_HEADER_VERSION TPLINK_BOARD_NAME
+DEVICE_VARS += LOADER_FLASH_OFFS TPLINK_BOARD_NAME TPLINK_FLASHLAYOUT TPLINK_HEADER_VERSION TPLINK_HWID TPLINK_HWREV
+
+define Build/copy-file
+ cat "$(1)" > "$@"
+endef
+
+define Build/loader-okli
+ dd if=$(KDIR)/loader-$(1).gz bs=7680 conv=sync of="$@.new"
+ cat "$@" >> "$@.new"
+ mv "$@.new" "$@"
+endef
+
+define Build/loader-okli-compile
+ $(call Build/loader-common,FLASH_OFFS=$(LOADER_FLASH_OFFS) FLASH_MAX=0 KERNEL_CMDLINE="$(CMDLINE)")
+endef
# combine kernel and rootfs into one image
# mktplinkfw <type> <optional extra arguments to mktplinkfw binary>