sh: convert makefiles to Kbuild style
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
diff --git a/board/renesas/r0p7734/Makefile b/board/renesas/r0p7734/Makefile
index 24933cc..1f24d92 100644
--- a/board/renesas/r0p7734/Makefile
+++ b/board/renesas/r0p7734/Makefile
@@ -3,25 +3,5 @@
#
# SPDX-License-Identifier: GPL-2.0+
-include $(TOPDIR)/config.mk
-
-LIB = $(obj)lib$(BOARD).o
-
-COBJS := r0p7734.o
-SOBJS := lowlevel_init.o
-
-SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(COBJS))
-SOBJS := $(addprefix $(obj),$(SOBJS))
-
-$(LIB): $(obj).depend $(OBJS) $(SOBJS)
- $(call cmd_link_o_target, $(OBJS) $(SOBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+obj-y := r0p7734.o
+obj-y += lowlevel_init.o