diff --git a/include/configs/MPC8313ERDB.h b/include/configs/MPC8313ERDB.h
index 6568fe1..0c3bc16 100644
--- a/include/configs/MPC8313ERDB.h
+++ b/include/configs/MPC8313ERDB.h
@@ -178,6 +178,7 @@
 #define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
 #define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET
 
+/* CFG_MONITOR_LEN must be a multiple of CFG_ENV_SECT_SIZE */
 #define CFG_MONITOR_LEN		(256 * 1024)	/* Reserve 256 kB for Mon */
 #define CFG_MALLOC_LEN		(512 * 1024)	/* Reserved for malloc */
 
@@ -326,7 +327,7 @@
  */
 #ifndef CFG_RAMBOOT
 	#define CFG_ENV_IS_IN_FLASH	1
-	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + 0x40000)
+	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + CFG_MONITOR_LEN)
 	#define CFG_ENV_SECT_SIZE	0x10000	/* 64K(one sector) for env */
 	#define CFG_ENV_SIZE		0x2000
 
diff --git a/include/configs/MPC8323ERDB.h b/include/configs/MPC8323ERDB.h
index 376973b..558f94b 100644
--- a/include/configs/MPC8323ERDB.h
+++ b/include/configs/MPC8323ERDB.h
@@ -116,6 +116,7 @@
 #undef  CFG_RAMBOOT
 #endif
 
+/* CFG_MONITOR_LEN must be a multiple of CFG_ENV_SECT_SIZE */
 #define CFG_MONITOR_LEN		(256 * 1024)	/* Reserve 256 kB for Mon */
 #define CFG_MALLOC_LEN		(128 * 1024)	/* Reserved for malloc */
 
@@ -354,8 +355,8 @@
  */
 #ifndef CFG_RAMBOOT
 	#define CFG_ENV_IS_IN_FLASH	1
-	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + 0x40000)
-	#define CFG_ENV_SECT_SIZE	0x40000	/* 256K(one sector) for env */
+	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + CFG_MONITOR_LEN)
+	#define CFG_ENV_SECT_SIZE	0x20000
 	#define CFG_ENV_SIZE		0x2000
 #else
 	#define CFG_NO_FLASH		1	/* Flash is not usable now */
diff --git a/include/configs/MPC832XEMDS.h b/include/configs/MPC832XEMDS.h
index c9c6d88..5345fc6 100644
--- a/include/configs/MPC832XEMDS.h
+++ b/include/configs/MPC832XEMDS.h
@@ -145,6 +145,7 @@
 #undef  CFG_RAMBOOT
 #endif
 
+/* CFG_MONITOR_LEN must be a multiple of CFG_ENV_SECT_SIZE */
 #define CFG_MONITOR_LEN		(256 * 1024)	/* Reserve 256 kB for Mon */
 #define CFG_MALLOC_LEN		(128 * 1024)	/* Reserved for malloc */
 
@@ -410,8 +411,8 @@
  */
 #ifndef CFG_RAMBOOT
 	#define CFG_ENV_IS_IN_FLASH	1
-	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + 0x40000)
-	#define CFG_ENV_SECT_SIZE	0x40000	/* 256K(one sector) for env */
+	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + CFG_MONITOR_LEN)
+	#define CFG_ENV_SECT_SIZE	0x20000
 	#define CFG_ENV_SIZE		0x2000
 #else
 	#define CFG_NO_FLASH		1	/* Flash is not usable now */
diff --git a/include/configs/MPC8349EMDS.h b/include/configs/MPC8349EMDS.h
index 92555ba..7d5b17b 100644
--- a/include/configs/MPC8349EMDS.h
+++ b/include/configs/MPC8349EMDS.h
@@ -456,7 +456,7 @@
  */
 #ifndef CFG_RAMBOOT
 	#define CFG_ENV_IS_IN_FLASH	1
-	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + 0x40000)
+	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + CFG_MONITOR_LEN)
 	#define CFG_ENV_SECT_SIZE	0x20000	/* 128K(one sector) for env */
 	#define CFG_ENV_SIZE		0x2000
 
diff --git a/include/configs/MPC8349ITX.h b/include/configs/MPC8349ITX.h
index 54cab52..2a2e753 100644
--- a/include/configs/MPC8349ITX.h
+++ b/include/configs/MPC8349ITX.h
@@ -261,6 +261,7 @@ boards, we say we have two, but don't display a message if we find only one. */
 #define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
 #define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET
 
+/* CFG_MONITOR_LEN must be a multiple of CFG_ENV_SECT_SIZE */
 #define CFG_MONITOR_LEN		(256 * 1024) /* Reserve 256 kB for Mon */
 #define CFG_MALLOC_LEN		(128 * 1024) /* Reserved for malloc */
 
@@ -404,8 +405,8 @@ boards, we say we have two, but don't display a message if we find only one. */
 
 #ifndef CFG_RAMBOOT
   #define CFG_ENV_IS_IN_FLASH
+  #define CFG_ENV_ADDR		(CFG_MONITOR_BASE + CFG_MONITOR_LEN)
   #define CFG_ENV_SECT_SIZE	0x10000 /* 64K (one sector) for environment */
-  #define CFG_ENV_ADDR		(CFG_MONITOR_BASE + (4 * CFG_ENV_SECT_SIZE))
   #define CFG_ENV_SIZE		0x2000
 #else
   #define CFG_NO_FLASH		/* Flash is not usable now */
diff --git a/include/configs/MPC8360EMDS.h b/include/configs/MPC8360EMDS.h
index 41f062c..8098951 100644
--- a/include/configs/MPC8360EMDS.h
+++ b/include/configs/MPC8360EMDS.h
@@ -170,6 +170,7 @@
 #undef	CFG_RAMBOOT
 #endif
 
+/* CFG_MONITOR_LEN must be a multiple of CFG_ENV_SECT_SIZE */
 #define CFG_MONITOR_LEN		(256 * 1024) /* Reserve 256 kB for Mon */
 #define CFG_MALLOC_LEN		(128 * 1024) /* Reserved for malloc */
 
@@ -443,8 +444,8 @@
 
 #ifndef CFG_RAMBOOT
 	#define CFG_ENV_IS_IN_FLASH	1
-	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + 0x40000)
-	#define CFG_ENV_SECT_SIZE	0x40000 /* 256K(one sector) for env */
+	#define CFG_ENV_ADDR		(CFG_MONITOR_BASE + CFG_MONITOR_LEN)
+	#define CFG_ENV_SECT_SIZE	0x20000
 	#define CFG_ENV_SIZE		0x2000
 #else
 	#define CFG_NO_FLASH		1	/* Flash is not usable now */