85xx: Add defines for BUCSR bits to make code more readable

Signed-off-by: NKumar Gala <galak@kernel.crashing.org>

cpu/mpc85xx/release.S

 /*
- * Copyright 2008-2009 Freescale Semiconductor, Inc.
+ * Copyright 2008-2010 Freescale Semiconductor, Inc.
  * Kumar Gala <kumar.gala@freescale.com>
  *
  * See file CREDITS for list of people who contributed to this
@@ -61,7 +61,8 @@ __secondary_start_page:
 #endif
 
 	/* Enable branch prediction */
-	li	r3,0x201
+	lis	r3,BUCSR_ENABLE@h
+	ori	r3,r3,BUCSR_ENABLE@l
 	mtspr	SPRN_BUCSR,r3
 
 	/* Ensure TB is 0 */

cpu/mpc85xx/start.S

 /*
- * Copyright 2004, 2007-2009 Freescale Semiconductor, Inc.
+ * Copyright 2004, 2007-2010 Freescale Semiconductor, Inc.
  * Copyright (C) 2003  Motorola,Inc.
  *
  * See file CREDITS for list of people who contributed to this
@@ -213,8 +213,9 @@ _start_e500:
 
 	/* Enable Branch Prediction */
 #if defined(CONFIG_BTB)
-	li	r0,0x201		/* BBFI = 1, BPEN = 1 */
-	mtspr	BUCSR,r0
+	lis	r0,BUCSR_ENABLE@h
+	ori	r0,r0,BUCSR_ENABLE@l
+	mtspr	SPRN_BUCSR,r0
 #endif
 
 #if defined(CONFIG_SYS_INIT_DBCR)

include/asm-ppc/processor.h

@@ -533,6 +533,9 @@
 #define SPRN_MCSRR0	0x23a	/* Machine Check Save and Restore Register 0 */
 #define SPRN_MCSRR1	0x23b	/* Machine Check Save and Restore Register 1 */
 #define SPRN_BUCSR	0x3f5	/* Branch Control and Status Register */
+#define	  BUCSR_BBFI	0x00000200	/* Branch buffer flash invalidate */
+#define	  BUCSR_BPEN	0x00000001	/* Branch prediction enable */
+#define   BUCSR_ENABLE (BUCSR_BBFI|BUCSR_BPEN)
 #define SPRN_BBEAR	0x201	/* Branch Buffer Entry Address Register */
 #define SPRN_BBTAR	0x202	/* Branch Buffer Target Address Register */
 #define SPRN_PID1	0x279	/* Process ID Register 1 */