diff --git a/include/configs/MPC8569MDS.h b/include/configs/MPC8569MDS.h
index 64a82dd..21a7adf 100644
--- a/include/configs/MPC8569MDS.h
+++ b/include/configs/MPC8569MDS.h
@@ -194,7 +194,7 @@
 #define CONFIG_SYS_INIT_SP_OFFSET	CONFIG_SYS_GBL_DATA_OFFSET
 
 #define CONFIG_SYS_MONITOR_LEN	(256 * 1024)	/* Reserve 256 kB for Mon */
-#define CONFIG_SYS_MALLOC_LEN	(128 * 1024)	/* Reserved for malloc */
+#define CONFIG_SYS_MALLOC_LEN	(512 * 1024)	/* Reserved for malloc */
 
 /* Serial Port */
 #define CONFIG_CONS_INDEX		1
@@ -327,9 +327,9 @@
  * Environment
  */
 #define CONFIG_ENV_IS_IN_FLASH	1
-#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE + 0x40000)
+#define CONFIG_ENV_ADDR		(CONFIG_SYS_MONITOR_BASE - CONFIG_ENV_SECT_SIZE)
 #define CONFIG_ENV_SECT_SIZE	0x20000	/* 256K(one sector) for env */
-#define CONFIG_ENV_SIZE		0x2000
+#define CONFIG_ENV_SIZE		CONFIG_ENV_SECT_SIZE
 
 #define CONFIG_LOADS_ECHO	1	/* echo on for serial download */
 #define CONFIG_SYS_LOADS_BAUD_CHANGE	1	/* allow baudrate change */