85xx: Added P1020 Processor Support.

P1020 is another member of QorIQ series of processors which falls in ULE
category. It is an e500 based dual core SOC.

Being a scaled down version of P2020 it has following differences:
- 533MHz - 800MHz core frequency.
- 256Kbyte L2 cache
- Ethernet controllers with classification capabilities.
Also the SOC is pin compatible with P2020

Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

cpu/mpc85xx/Makefile

@@ -48,8 +48,9 @@ COBJS-$(CONFIG_MPC8544) += ddr-gen2.o
 # supports ddr1/2/3
 COBJS-$(CONFIG_MPC8572) += ddr-gen3.o
 COBJS-$(CONFIG_MPC8536) += ddr-gen3.o
-COBJS-$(CONFIG_P2020)	+= ddr-gen3.o
 COBJS-$(CONFIG_MPC8569)	+= ddr-gen3.o
+COBJS-$(CONFIG_P2020)	+= ddr-gen3.o
+COBJS-$(CONFIG_P1020)	+= ddr-gen3.o
 
 COBJS-$(CONFIG_MPC8536) += mpc8536_serdes.o
 COBJS	= traps.o cpu.o cpu_init.o speed.o interrupts.o tlb.o \

cpu/mpc8xxx/cpu.c

@@ -66,6 +66,8 @@ struct cpu_type cpu_type_list [] = {
 	CPU_TYPE_ENTRY(8572, 8572_E, 2),
 	CPU_TYPE_ENTRY(P2020, P2020, 2),
 	CPU_TYPE_ENTRY(P2020, P2020_E, 2),
+	CPU_TYPE_ENTRY(P1020, P1020, 2),
+	CPU_TYPE_ENTRY(P1020, P1020_E, 2),
 #elif defined(CONFIG_MPC86xx)
 	CPU_TYPE_ENTRY(8610, 8610, 1),
 	CPU_TYPE_ENTRY(8641, 8641, 2),

drivers/misc/fsl_law.c

@@ -39,7 +39,7 @@ DECLARE_GLOBAL_DATA_PTR;
       defined(CONFIG_MPC8641) || defined(CONFIG_MPC8610)
 #define FSL_HW_NUM_LAWS 10
 #elif defined(CONFIG_MPC8536) || defined(CONFIG_MPC8572) || \
-      defined(CONFIG_P2020)
+      defined(CONFIG_P2020) || defined(CONFIG_P1020)
 #define FSL_HW_NUM_LAWS 12
 #else
 #error FSL_HW_NUM_LAWS not defined for this platform

include/asm-ppc/processor.h

@@ -1011,6 +1011,8 @@
 #define SVR_8572_E	0x80E800
 #define SVR_P2020	0x80E200
 #define SVR_P2020_E	0x80EA00
+#define SVR_P1020	0x80E400
+#define SVR_P1020_E	0x80EC00
 
 #define SVR_8610	0x80A000
 #define SVR_8641	0x809000