LIB = $(obj)lib$(CPU).a
-START =
-COBJS = serial.o interrupts.o cpu.o speed.o cpu_init.o fec.o
+START = start.o
+COBJS = interrupts.o cpu.o speed.o cpu_init.o
SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS))