mpc83xx: Add the support of MPC837xEMDS board

The MPC837xEMDS board support:
* DDR2 400MHz hardcoded and SPD init
* Local bus NOR Flash
* I2C, UART, MII and RTC
* eTSEC RGMII
* PCI host

Signed-off-by: Dave Liu <daveliu@freescale.com>
diff --git a/Makefile b/Makefile
index 35e9031..dd995d3 100644
--- a/Makefile
+++ b/Makefile
@@ -1922,6 +1922,16 @@
 	fi ;
 	@$(MKCONFIG) -a MPC8360EMDS ppc mpc83xx mpc8360emds freescale
 
+MPC837XEMDS_config \
+MPC837XEMDS_HOST_config:	unconfig
+	@mkdir -p $(obj)include
+	@echo "" >$(obj)include/config.h ; \
+	if [ "$(findstring _HOST_,$@)" ] ; then \
+		echo -n "... PCI HOST " ; \
+		echo "#define CONFIG_PCI" >>$(obj)include/config.h ; \
+	fi ;
+	@$(MKCONFIG) -a MPC837XEMDS ppc mpc83xx mpc837xemds freescale
+
 sbc8349_config:		unconfig
 	@$(MKCONFIG) $(@:_config=) ppc mpc83xx sbc8349