mpc85xx: Add support for the P2020

Added various p2020 processor specific details:
* SVR for p2020, p2020E
* immap updates for LAWs and DDR on p2020
* LAW defines related to p2020

Signed-off-by: Srikanth Srinivasan <srikanth.srinivasan@freescale.com>
Signed-off-by: Travis Wheatley <Travis.Wheatley@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c
index 2ed44bf..c9598fa 100644
--- a/cpu/mpc85xx/cpu.c
+++ b/cpu/mpc85xx/cpu.c
@@ -62,6 +62,8 @@
 	CPU_TYPE_ENTRY(8568, 8568_E),
 	CPU_TYPE_ENTRY(8572, 8572),
 	CPU_TYPE_ENTRY(8572, 8572_E),
+	CPU_TYPE_ENTRY(P2020, P2020),
+	CPU_TYPE_ENTRY(P2020, P2020_E),
 };
 
 struct cpu_type *identify_cpu(u32 ver)