diff --git a/board/cogent/Makefile b/board/cogent/Makefile
index e7d69df..30fe98d 100644
--- a/board/cogent/Makefile
+++ b/board/cogent/Makefile
@@ -5,24 +5,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(BOARD).o
-
-COBJS	:= mb.o flash.o dipsw.o lcd.o serial.o # pci.o rtc.o par.o kbm.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-$(LIB):	$(obj).depend $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y	:= mb.o flash.o dipsw.o lcd.o serial.o # pci.o rtc.o par.o kbm.o