diff --git a/arch/sh/cpu/sh2/Makefile b/arch/sh/cpu/sh2/Makefile
index 686bb79..a19ed5e 100644
--- a/arch/sh/cpu/sh2/Makefile
+++ b/arch/sh/cpu/sh2/Makefile
@@ -8,27 +8,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(CPU).o
-
-START	= start.o
-COBJS	= cpu.o interrupts.o watchdog.o
-
-SRCS    := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS    := $(addprefix $(obj),$(COBJS))
-SOBJS   := $(addprefix $(obj),$(SOBJS))
-
-all:    $(START) $(LIB)
-
-$(LIB):	$(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+extra-y	= start.o
+obj-y	= cpu.o interrupts.o watchdog.o
diff --git a/arch/sh/cpu/sh3/Makefile b/arch/sh/cpu/sh3/Makefile
index 26cb1ce..1dccaf9 100644
--- a/arch/sh/cpu/sh3/Makefile
+++ b/arch/sh/cpu/sh3/Makefile
@@ -11,27 +11,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(CPU).o
-
-START	= start.o
-COBJS	= cpu.o interrupts.o watchdog.o cache.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-all:    $(START) $(LIB)
-
-$(LIB):	$(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+extra-y	= start.o
+obj-y	= cpu.o interrupts.o watchdog.o cache.o
diff --git a/arch/sh/cpu/sh4/Makefile b/arch/sh/cpu/sh4/Makefile
index 5680d61..38c6188 100644
--- a/arch/sh/cpu/sh4/Makefile
+++ b/arch/sh/cpu/sh4/Makefile
@@ -8,27 +8,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(CPU).o
-
-START	= start.o
-COBJS	= cpu.o interrupts.o watchdog.o cache.o
-
-SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(COBJS))
-SOBJS	:= $(addprefix $(obj),$(SOBJS))
-
-all:    $(START) $(LIB)
-
-$(LIB):	$(OBJS) $(SOBJS)
-	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
+extra-y	= start.o
+obj-y	= cpu.o interrupts.o watchdog.o cache.o
diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile
index 8165963..5fc9d9d 100644
--- a/arch/sh/lib/Makefile
+++ b/arch/sh/lib/Makefile
@@ -5,57 +5,25 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 
-LIB	= $(obj)lib$(ARCH).o
-LIBGCC	= $(obj)libgcc.o
-
-SOBJS-y	+=
-GLSOBJS	+= ashiftrt.o
-GLSOBJS	+= ashiftlt.o
-GLSOBJS	+= lshiftrt.o
-GLSOBJS	+= ashldi3.o
-GLSOBJS	+= ashrsi3.o
-GLSOBJS	+= lshrdi3.o
-GLSOBJS	+= movmem.o
-
-COBJS-y	+= board.o
-COBJS-$(CONFIG_CMD_BOOTM) += bootm.o
+obj-y	+= board.o
+obj-$(CONFIG_CMD_BOOTM) += bootm.o
 ifeq ($(CONFIG_SH2),y)
-COBJS-y	+= time_sh2.o
+obj-y	+= time_sh2.o
 else
-COBJS-y	+= time.o
+obj-y	+= time.o
 endif
-ifeq ($(CONFIG_CMD_SH_ZIMAGEBOOT),y)
-COBJS-y += zimageboot.o
-endif
+obj-$(CONFIG_CMD_SH_ZIMAGEBOOT) += zimageboot.o
 
-SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
-LGOBJS	:= $(addprefix $(obj),$(GLSOBJS)) \
-	   $(addprefix $(obj),$(GLCOBJS))
 
-# Always build libsh.o
-TARGETS	:= $(LIB)
 
 # Build private libgcc only when asked for
 ifdef USE_PRIVATE_LIBGCC
-TARGETS	+= $(LIBGCC)
+lib-y	+= ashiftrt.o
+lib-y	+= ashiftlt.o
+lib-y	+= lshiftrt.o
+lib-y	+= ashldi3.o
+lib-y	+= ashrsi3.o
+lib-y	+= lshrdi3.o
+lib-y	+= movmem.o
 endif
-
-all:	$(TARGETS)
-
-$(LIB):	$(obj).depend $(OBJS)
-	$(call cmd_link_o_target, $(OBJS))
-
-$(LIBGCC): $(obj).depend $(LGOBJS)
-	$(call cmd_link_o_target, $(LGOBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################