powerpc/mpc85xx: Add definitions for HDBCR registers

Makes it a bit easier to see if we've properly set them. While
we're in there, modify the accesses to HDBCR0 and HDBCR1  to actually
use those definitions.

Signed-off-by: Andy Fleming <afleming@freescale.com>

arch/powerpc/cpu/mpc85xx/release.S

@@ -69,9 +69,9 @@ __secondary_start_page:
 #endif
 
 #ifdef CONFIG_SYS_FSL_ERRATUM_CPU_A003999
-	mfspr	r3,977
+	mfspr	r3,SPRN_HDBCR1
 	oris	r3,r3,0x0100
-	mtspr	977,r3
+	mtspr	SPRN_HDBCR1,r3
 #endif
 
 #ifdef CONFIG_SYS_FSL_ERRATUM_A004510
@@ -93,10 +93,10 @@ __secondary_start_page:
 1:	/* Erratum says set bits 55:60 to 001001 */
 	msync
 	isync
-	mfspr	r3,976
+	mfspr	r3,SPRN_HDBCR0
 	li	r4,0x48
 	rlwimi	r3,r4,0,0x1f8
-	mtspr	976,r3
+	mtspr	SPRN_HDBCR0,r3
 	isync
 2:
 #endif

arch/powerpc/cpu/mpc85xx/start.S

@@ -116,10 +116,10 @@ _start_e500:
 	/* Erratum says set bits 55:60 to 001001 */
 	msync
 	isync
-	mfspr	r3,976
+	mfspr	r3,SPRN_HDBCR0
 	li	r4,0x48
 	rlwimi	r3,r4,0,0x1f8
-	mtspr	976,r3
+	mtspr	SPRN_HDBCR0,r3
 	isync
 2:
 #endif
@@ -372,9 +372,9 @@ l2_disabled:
 #endif
 
 #ifdef CONFIG_SYS_FSL_ERRATUM_CPU_A003999
-	mfspr	r3,977
+	mfspr	r3,SPRN_HDBCR1
 	oris	r3,r3,0x0100
-	mtspr	977,r3
+	mtspr	SPRN_HDBCR1,r3
 #endif
 
 	/* Enable Branch Prediction */

arch/powerpc/include/asm/processor.h

@@ -575,6 +575,16 @@
 #define SPRN_MSSSR0	0x3f7
 #endif
 
+#define SPRN_HDBCR0	0x3d0
+#define SPRN_HDBCR1	0x3d1
+#define SPRN_HDBCR2	0x3d2
+#define SPRN_HDBCR3	0x3d3
+#define SPRN_HDBCR4	0x3d4
+#define SPRN_HDBCR5	0x3d5
+#define SPRN_HDBCR6	0x3d6
+#define SPRN_HDBCR7	0x277
+#define SPRN_HDBCR8	0x278
+
 /* Short-hand versions for a number of the above SPRNs */
 
 #define CTR	SPRN_CTR	/* Counter Register */