ARM: mach-shmobile: sh73a0 twd_base fix

Fix the case of too late twd_base initialization for SMP
on sh73a0 which bas been broken because sh73a0 specific
smp_prepare_cpu() and percpu_timer_setup() changed order
in the commits:

05c74a6cbcfb416286a947668ba32f63d99fe74a
c413521eb4e2d7ffd5ce432a144708d479054bd3

Without this fix the sh73a0 SMP kernel panics on boot.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 5 insertions, 4 deletions

diff --git a/arch/arm/mach-shmobile/smp-sh73a0.c b/arch/arm/mach-shmobile/smp-sh73a0.c
index a156d2108df1..3ffdbc92ba82 100644
--- a/arch/arm/mach-shmobile/smp-sh73a0.c
+++ b/arch/arm/mach-shmobile/smp-sh73a0.c
@@ -59,6 +59,11 @@ unsigned int __init sh73a0_get_core_count(void)
 {
         void __iomem *scu_base = scu_base_addr();
 
+#ifdef CONFIG_HAVE_ARM_TWD
+        /* twd_base needs to be initialized before percpu_timer_setup() */
+        twd_base = (void __iomem *)0xf0000600;
+#endif
+
         return scu_get_core_count(scu_base);
 }
 
@@ -82,10 +87,6 @@ int __cpuinit sh73a0_boot_secondary(unsigned int cpu)
 
 void __init sh73a0_smp_prepare_cpus(void)
 {
-#ifdef CONFIG_HAVE_ARM_TWD
-        twd_base = (void __iomem *)0xf0000600;
-#endif
-
         scu_enable(scu_base_addr());
 
         /* Map the reset vector (in headsmp.S) */