powerpc/virtex5: Fix Virtex5 machine check handling

The 440x5 core in the Virtex5 uses the 440A type machine check
(ie, they have MCSRR0/MCSRR1). They thus need to call the
appropriate fixup function to hook the right variant of the
exception.

Without this, all machine checks become fatal due to loss
of context when entering the exception handler.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

2 files changed, 4 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/cpu_setup_44x.S b/arch/powerpc/kernel/cpu_setup_44x.S
index 31c18b52affb..10b4ab1008af 100644
--- a/arch/powerpc/kernel/cpu_setup_44x.S
+++ b/arch/powerpc/kernel/cpu_setup_44x.S
@@ -40,6 +40,7 @@ _GLOBAL(__setup_cpu_460gt)
         mtlr    r4
         blr
 
+_GLOBAL(__setup_cpu_440x5)
 _GLOBAL(__setup_cpu_440gx)
 _GLOBAL(__setup_cpu_440spe)
         b       __fixup_440A_mcheck
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index b1eb834bc0fc..7e8719504f39 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -39,6 +39,7 @@ extern void __setup_cpu_440epx(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440gx(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440grx(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_440spe(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_440x5(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_460ex(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_460gt(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_603(unsigned long offset, struct cpu_spec* spec);
@@ -1500,6 +1501,8 @@ static struct cpu_spec __initdata cpu_specs[] = {
                 .cpu_user_features      = COMMON_USER_BOOKE,
                 .icache_bsize           = 32,
                 .dcache_bsize           = 32,
+                .cpu_setup              = __setup_cpu_440x5,
+                .machine_check          = machine_check_440A,
                 .platform               = "ppc440",
         },
         { /* 460EX */