ARM: convert makefiles to Kbuild style

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 4e78723..679f19a 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -5,77 +5,43 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
-
-LIB	= $(obj)lib$(ARCH).o
-LIBGCC	= $(obj)libgcc.o
-
-GLSOBJS	+= _ashldi3.o
-GLSOBJS	+= _ashrdi3.o
-GLSOBJS	+= _divsi3.o
-GLSOBJS	+= _lshrdi3.o
-GLSOBJS	+= _modsi3.o
-GLSOBJS	+= _udivsi3.o
-GLSOBJS	+= _umodsi3.o
-
-GLCOBJS	+= div0.o
-
-SOBJS-y += crt0.o
-
-ifndef CONFIG_SPL_BUILD
-SOBJS-y += relocate.o
-ifndef CONFIG_SYS_GENERIC_BOARD
-COBJS-y	+= board.o
-endif
-COBJS-y += sections.o
-
-COBJS-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
-COBJS-$(CONFIG_CMD_BOOTM) += bootm.o
-COBJS-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
-SOBJS-$(CONFIG_USE_ARCH_MEMSET) += memset.o
-SOBJS-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
-else
-COBJS-$(CONFIG_SPL_FRAMEWORK) += spl.o
-endif
-
-COBJS-y	+= interrupts.o
-COBJS-y	+= reset.o
-
-COBJS-y	+= cache.o
-COBJS-y	+= cache-cp15.o
-
-SRCS	:= $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \
-	   $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
-LGOBJS	:= $(addprefix $(obj),$(GLSOBJS)) \
-	   $(addprefix $(obj),$(GLCOBJS))
-
-# Always build libarm.o
-TARGETS	:= $(LIB)
-
 # Build private libgcc only when asked for
 ifdef USE_PRIVATE_LIBGCC
-TARGETS	+= $(LIBGCC)
+lib-y	+= _ashldi3.o
+lib-y	+= _ashrdi3.o
+lib-y	+= _divsi3.o
+lib-y	+= _lshrdi3.o
+lib-y	+= _modsi3.o
+lib-y	+= _udivsi3.o
+lib-y	+= _umodsi3.o
+lib-y	+= div0.o
 endif
 
+obj-y += crt0.o
+
+ifndef CONFIG_SPL_BUILD
+obj-y += relocate.o
+ifndef CONFIG_SYS_GENERIC_BOARD
+obj-y	+= board.o
+endif
+obj-y += sections.o
+
+obj-$(CONFIG_OF_LIBFDT) += bootm-fdt.o
+obj-$(CONFIG_CMD_BOOTM) += bootm.o
+obj-$(CONFIG_SYS_L2_PL310) += cache-pl310.o
+obj-$(CONFIG_USE_ARCH_MEMSET) += memset.o
+obj-$(CONFIG_USE_ARCH_MEMCPY) += memcpy.o
+else
+obj-$(CONFIG_SPL_FRAMEWORK) += spl.o
+endif
+
+obj-y	+= interrupts.o
+obj-y	+= reset.o
+
+obj-y	+= cache.o
+obj-y	+= cache-cp15.o
+
 # For EABI conformant tool chains, provide eabi_compat()
 ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
-TARGETS	+= $(obj)eabi_compat.o
+extra-y	+= eabi_compat.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
-
-#########################################################################