[U-Boot] [PATCH] rmobile: Fix build timer driver with BUILD_DIR

[Nobuhiro Iwamatsu]

Rmobile common timer driver  diverts the same driver as SH architecture.
When it builds at the same place with source, it is no problem, but when
it builds out of source, it cannot build.
This patch revises this problem.

Reported-by: Albert ARIBAUD <albert.u.boot at aribaud.net>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj at renesas.com>
---
 arch/arm/cpu/armv7/rmobile/Makefile |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/arm/cpu/armv7/rmobile/Makefile b/arch/arm/cpu/armv7/rmobile/Makefile
index 00610fe..c8999bb 100644
--- a/arch/arm/cpu/armv7/rmobile/Makefile
+++ b/arch/arm/cpu/armv7/rmobile/Makefile
@@ -35,11 +35,12 @@ COBJS-$(CONFIG_R8A7740) += cpu_info-r8a7740.o
 COBJS-$(CONFIG_R8A7740) += pfc-r8a7740.o
 COBJS-$(CONFIG_SH73A0) += cpu_info-sh73a0.o
 COBJS-$(CONFIG_SH73A0) += pfc-sh73a0.o
-COBJS-$(CONFIG_TMU_TIMER) += $(TOPDIR)/arch/sh/lib/time.o
+COBJS_LN-$(CONFIG_TMU_TIMER) += sh_timer.o
 
 COBJS	:= $(COBJS-y)
 SRCS    := $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+SRCS    := $(SOBJS:.o=.S) $(COBJS:.o=.c) $(addprefix $(obj),$(COBJS_LN-y:.o=.c))
+OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS) $(COBJS_LN-y))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 START	:= $(addprefix $(obj),$(START))
 
@@ -48,6 +49,11 @@ all:	$(obj).depend $(LIB)
 $(LIB):	$(OBJS)
 	$(call cmd_link_o_target, $(OBJS))
 
+# from arch/sh/lib/ directory
+$(obj)sh_timer.c:
+	@rm -f $(obj)sh_timer.c
+	ln -s $(SRCTREE)/arch/sh/lib/time.c $(obj)sh_timer.c
+
 #########################################################################
 
 # defines $(obj).depend target
-- 
1.7.10.4