diff --git a/cpu/mpc83xx/start.S b/cpu/mpc83xx/start.S
index 309eb30..fdf9d35 100644
--- a/cpu/mpc83xx/start.S
+++ b/cpu/mpc83xx/start.S
@@ -172,8 +172,11 @@
 	/* there and deflate the flash size back to minimal size      */
 	/*------------------------------------------------------------*/
 	bl map_flash_by_law1
-	lis r4, (CFG_MONITOR_BASE)@h
-	ori r4, r4, (CFG_MONITOR_BASE)@l
+
+	GET_GOT			/* initialize GOT access	*/
+	lwz r4, GOT(_start)
+	addi r4, r4, -EXC_OFF_SYS_RESET
+
 	addi r5, r4, in_flash - _start + EXC_OFF_SYS_RESET
 	mtlr r5
 	blr
@@ -872,8 +875,8 @@
 	mr	r10, r5		/* Save copy of Destination Address */
 
 	mr	r3,  r5				/* Destination Address */
-	lis	r4, CFG_MONITOR_BASE@h		/* Source      Address */
-	ori	r4, r4, CFG_MONITOR_BASE@l
+	lwz	r4, GOT(_start)
+	addi	r4, r4, -EXC_OFF_SYS_RESET
 	lwz	r5, GOT(__init_end)
 	sub	r5, r5, r4
 	li	r6, CFG_CACHELINE_SIZE		/* Cache Line Size */
diff --git a/lib_ppc/board.c b/lib_ppc/board.c
index 50cdf8c..7ebf74a 100644
--- a/lib_ppc/board.c
+++ b/lib_ppc/board.c
@@ -120,6 +120,7 @@
 #define	TOTAL_MALLOC_LEN	CFG_MALLOC_LEN
 #endif
 
+extern ulong _start;
 extern ulong __init_end;
 extern ulong _end;
 ulong monitor_flash_len;
@@ -434,7 +435,7 @@
 	 *  - monitor code
 	 *  - board info struct
 	 */
-	len = (ulong)&_end - CFG_MONITOR_BASE;
+	len = (ulong)&_end - (ulong)&_start + EXC_OFF_SYS_RESET;
 
 #ifndef CONFIG_MAX_MEM_MAPPED
 #define CONFIG_MAX_MEM_MAPPED (256 << 20)