[SPARC64]: Do not touch %tick_cmpr on sun4v cpus.

This register is not a part of the sun4v architecture.

Niagara 1 and 2 happened to leave it around.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S
index a2652bcfeb15..63144ad476f6 100644
--- a/arch/sparc64/kernel/head.S
+++ b/arch/sparc64/kernel/head.S
@@ -715,12 +715,13 @@ setup_trap_table:
 
         membar  #Sync
 
+        BRANCH_IF_SUN4V(o2, 1f)
+
         /* Kill PROM timer */
         sethi   %hi(0x80000000), %o2
         sllx    %o2, 32, %o2
         wr      %o2, 0, %tick_cmpr
 
-        BRANCH_IF_SUN4V(o2, 1f)
         BRANCH_IF_ANY_CHEETAH(o2, o3, 1f)
 
         ba,pt   %xcc, 2f