board: powerpc: convert makefiles to Kbuild style
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: York Sun <yorksun@freescale.com>
Cc: Stefan Roese <sr@denx.de>
diff --git a/board/esd/du440/Makefile b/board/esd/du440/Makefile
index 7ccd9a8..ef41d94 100644
--- a/board/esd/du440/Makefile
+++ b/board/esd/du440/Makefile
@@ -5,27 +5,5 @@
# SPDX-License-Identifier: GPL-2.0+
#
-include $(TOPDIR)/config.mk
-
-LIB = $(obj)lib$(BOARD).o
-
-COBJS = $(BOARD).o
-SOBJS = init.o
-
-SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(COBJS))
-SOBJS := $(addprefix $(obj),$(SOBJS))
-
-all: $(LIB) $(SOBJS)
-
-$(LIB): $(OBJS)
- $(call cmd_link_o_target, $^)
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y = du440.o
+extra-y += init.o