Make MPC83xx one step closer to full relocation.

Remove a few absolute references to CFG_MONITOR_BASE for ppc/mpc83xx
and use GOT relative reference.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>

cpu/mpc83xx/start.S

@@ -172,8 +172,11 @@ boot_warm: /* time t 5 */
 	/* 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 @@ relocate_code:
 	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 */

lib_ppc/board.c

@@ -120,6 +120,7 @@ DECLARE_GLOBAL_DATA_PTR;
 #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 @@ void board_init_f (ulong bootflag)
 	 *  - 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)