[Feature][ZXW-65]merged P49 base code

Change-Id: I3e09c0c3d47483bc645f02310380ecb7fc6f4041
diff --git a/boot/common/src/loader/include/ddr.h b/boot/common/src/loader/include/ddr.h
index 07bf118..09a6e4c 100644
--- a/boot/common/src/loader/include/ddr.h
+++ b/boot/common/src/loader/include/ddr.h
@@ -64,6 +64,7 @@
 #define CHIP_DDR_IS_64M			1

 #define CHIP_DDR_IS_128M		2

 #define CHIP_DDR_IS_256M		3

+#define CHIP_DDR_IS_512M		4

 

 

 int ddr_init(int flag);