mpc83xx: Add the support for MPC8315ERDB board

The features list:
- Boot from NOR Flash
- DDR2 266MHz hardcoded configuration
- Local bus NOR Flash R/W operation
- I2C, UART, MII and RTC
- eTSEC0/1 support
- PCI host

Signed-off-by: Dave Liu <daveliu@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
diff --git a/Makefile b/Makefile
index 8a888b9..8be0dfa 100644
--- a/Makefile
+++ b/Makefile
@@ -1861,6 +1861,9 @@
 	fi ;
 	@$(MKCONFIG) -a MPC8313ERDB ppc mpc83xx mpc8313erdb freescale
 
+MPC8315ERDB_config: unconfig
+	@$(MKCONFIG) -a MPC8315ERDB ppc mpc83xx mpc8315erdb freescale
+
 MPC8323ERDB_config:	unconfig
 	@$(MKCONFIG) -a MPC8323ERDB ppc mpc83xx mpc8323erdb freescale