diff --git a/include/configs/PMC405.h b/include/configs/PMC405.h
index d5794e4..c2db5ea 100644
--- a/include/configs/PMC405.h
+++ b/include/configs/PMC405.h
@@ -331,9 +331,8 @@
 #define CONFIG_SYS_INIT_RAM_SIZE		CONFIG_SYS_OCM_DATA_SIZE
 
 /* size in bytes reserved for initial data */
-#define CONFIG_SYS_GBL_DATA_SIZE	128
 #define CONFIG_SYS_GBL_DATA_OFFSET	(CONFIG_SYS_INIT_RAM_SIZE - \
-					 CONFIG_SYS_GBL_DATA_SIZE)
+					 GENERATED_GBL_DATA_SIZE)
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 
 #define CONFIG_OF_LIBFDT