powerpc/fsl-booke: Cleanup init/exception setup to be runtime

We currently have a few variants of fsl-booke processors (e500v1, e500v2,
e500mc, and e200).  They all have minor differences that we had previously
been handling via ifdefs.

To move towards having this support the following changes have been made:

* PID1, PID2 only exist on e500v1 & e500v2 and should not be accessed on
  e500mc or e200.  We use MMUCFG[NPIDS] to determine which case we are
  since we only touch PID1/2 in extremely early init code.

* Not all IVORs exist on all the processors so introduce cpu_setup
  functions for each variant to setup the proper IVORs that are either
  unique or exist but have some variations between the processors

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 923f87aff20..9fdf1b8027b 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -35,6 +35,10 @@ const char *powerpc_base_platform;
  * and ppc64
  */
 #ifdef CONFIG_PPC32
+extern void __setup_cpu_e200(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_e500v1(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_e500v2(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_e500mc(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440ep(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440epx(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440gx(unsigned long offset, struct cpu_spec* spec);
@@ -1687,6 +1691,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
                         PPC_FEATURE_UNIFIED_CACHE,
                 .mmu_features           = MMU_FTR_TYPE_FSL_E,
                 .dcache_bsize           = 32,
+                .cpu_setup              = __setup_cpu_e200,
                 .machine_check          = machine_check_e200,
                 .platform               = "ppc5554",
         }
@@ -1706,6 +1711,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
                 .num_pmcs               = 4,
                 .oprofile_cpu_type      = "ppc/e500",
                 .oprofile_type          = PPC_OPROFILE_FSL_EMB,
+                .cpu_setup              = __setup_cpu_e500v1,
                 .machine_check          = machine_check_e500,
                 .platform               = "ppc8540",
         },
@@ -1724,6 +1730,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
                 .num_pmcs               = 4,
                 .oprofile_cpu_type      = "ppc/e500",
                 .oprofile_type          = PPC_OPROFILE_FSL_EMB,
+                .cpu_setup              = __setup_cpu_e500v2,
                 .machine_check          = machine_check_e500,
                 .platform               = "ppc8548",
         },
@@ -1739,6 +1746,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
                 .num_pmcs               = 4,
                 .oprofile_cpu_type      = "ppc/e500", /* xxx - galak, e500mc? */
                 .oprofile_type          = PPC_OPROFILE_FSL_EMB,
+                .cpu_setup              = __setup_cpu_e500mc,
                 .machine_check          = machine_check_e500,
                 .platform               = "ppce500mc",
         },