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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:

05c74a6cbc
c413521eb4

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>
This commit is contained in:
Magnus Damm 2011-05-19 06:26:20 +00:00 committed by Paul Mundt
parent 34154f3559
commit 60116a7378
1 changed files with 5 additions and 4 deletions
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9
arch/arm/mach-shmobile/smp-sh73a0.c
View File

@ -59,6 +59,11 @@ unsigned int __init sh73a0_get_core_count(void)
{ {
void __iomem *scu_base = scu_base_addr(); 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); 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) void __init sh73a0_smp_prepare_cpus(void)
{ {
#ifdef CONFIG_HAVE_ARM_TWD
twd_base = (void __iomem *)0xf0000600;
#endif
scu_enable(scu_base_addr()); scu_enable(scu_base_addr());
/* Map the reset vector (in headsmp.S) */ /* Map the reset vector (in headsmp.S) */