powerpc: Add A2 cpu support

Add the cputable entry, regs and setup & restore entries for
the PowerPC A2 core.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 23 insertions, 2 deletions

diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index b65b4908d3c7..3d7b65ad4962 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -62,10 +62,12 @@ extern void __setup_cpu_745x(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_ppc970MP(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_pa6t(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_a2(unsigned long offset, struct cpu_spec* spec);
 extern void __restore_cpu_pa6t(void);
 extern void __restore_cpu_ppc970(void);
 extern void __setup_cpu_power7(unsigned long offset, struct cpu_spec* spec);
 extern void __restore_cpu_power7(void);
+extern void __restore_cpu_a2(void);
 #endif /* CONFIG_PPC64 */
 #if defined(CONFIG_E500)
 extern void __setup_cpu_e5500(unsigned long offset, struct cpu_spec* spec);
@@ -2011,7 +2013,26 @@ static struct cpu_spec __initdata cpu_specs[] = {
 #endif /* CONFIG_PPC32 */
 #endif /* CONFIG_E500 */
 
-#ifdef CONFIG_PPC_BOOK3E_64
+#ifdef CONFIG_PPC_A2
+        {       /* Standard A2 (>= DD2) + FPU core */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x00480000,
+                .cpu_name               = "A2 (>= DD2)",
+                .cpu_features           = CPU_FTRS_A2,
+                .cpu_user_features      = COMMON_USER_PPC64,
+                .mmu_features           = MMU_FTR_TYPE_3E | MMU_FTR_USE_TLBILX |
+                                          MMU_FTR_USE_TLBIVAX_BCAST |
+                                          MMU_FTR_LOCK_BCAST_INVAL |
+                                          MMU_FTR_USE_TLBRSRV |
+                                          MMU_FTR_USE_PAIRED_MAS,
+                .icache_bsize           = 64,
+                .dcache_bsize           = 64,
+                .num_pmcs               = 0,
+                .cpu_setup              = __setup_cpu_a2,
+                .cpu_restore            = __restore_cpu_a2,
+                .machine_check          = machine_check_generic,
+                .platform               = "ppca2",
+        },
         {       /* This is a default entry to get going, to be replaced by
                  * a real one at some stage
                  */
@@ -2032,7 +2053,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
                 .machine_check          = machine_check_generic,
                 .platform               = "power6",
         },
-#endif
+#endif /* CONFIG_PPC_A2 */
 };
 
 static struct cpu_spec the_cpu_spec;