85xx: Update multicore boot mechanism to ePAPR v0.81 spec

The following changes are needed to be inline with ePAPR v0.81:

* r4, r5 and now always set to 0 on boot release
* r7 is used to pass the size of the initial map area (IMA)
* EPAPR_MAGIC value changed for book-e processors
* changes in the spin table layout
* spin table supports a 64-bit physical release address

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/cpu/mpc85xx/mp.h b/cpu/mpc85xx/mp.h
index d9fbb82..b762ee2 100644
--- a/cpu/mpc85xx/mp.h
+++ b/cpu/mpc85xx/mp.h
@@ -5,4 +5,15 @@
 void setup_mp(void);
 u32 get_my_id(void);
 
+#define BOOT_ENTRY_ADDR_UPPER	0
+#define BOOT_ENTRY_ADDR_LOWER	1
+#define BOOT_ENTRY_R3_UPPER	2
+#define BOOT_ENTRY_R3_LOWER	3
+#define BOOT_ENTRY_RESV		4
+#define BOOT_ENTRY_PIR		5
+#define BOOT_ENTRY_R6_UPPER	6
+#define BOOT_ENTRY_R6_LOWER	7
+#define NUM_BOOT_ENTRY		8
+#define SIZE_BOOT_ENTRY		(NUM_BOOT_ENTRY * sizeof(u32))
+
 #endif