diff options
| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2012-05-10 11:26:58 +0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2012-05-13 00:13:45 +0400 |
| commit | d6720003c3732db891f6b5b10691a9c13ff6c46b (patch) | |
| tree | 93b49f4fe432d29aaef9b5772b640687e0931103 /arch/arm/mach-shmobile/setup-sh73a0.c | |
| parent | b759bd114e27fbb940fb44fd16552e8f4acd831e (diff) | |
| download | linux-d6720003c3732db891f6b5b10691a9c13ff6c46b.tar.xz | |
ARM / mach-shmobile: sh73a0 SMP TWD boot regression fix
Fix SMP TWD boot regression on sh73a0 based platforms caused by:
4200b16 ARM: shmobile: convert to twd_local_timer_register() interface
After the merge of the above commit it has been impossible to boot
sh73a0 based SoCs with SMP enabled and CONFIG_HAVE_ARM_TWD=y. The
kernel crashes at smp_init_cpus() timing which is before the console
has been initialized, so to the user this looks like a kernel lock up
without any particular error message.
This patch fixes the regression on sh73a0 by moving the TWD
registration code from smp_init_cpus() to sys_timer->init() time.
This patch removed shmobile_twd_init() which is no longer needed
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'arch/arm/mach-shmobile/setup-sh73a0.c')
| -rw-r--r-- | arch/arm/mach-shmobile/setup-sh73a0.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c index 5bebffc10455..04a0dfe75493 100644 --- a/arch/arm/mach-shmobile/setup-sh73a0.c +++ b/arch/arm/mach-shmobile/setup-sh73a0.c @@ -688,10 +688,14 @@ void __init sh73a0_add_standard_devices(void) ARRAY_SIZE(sh73a0_late_devices)); } +/* do nothing for !CONFIG_SMP or !CONFIG_HAVE_TWD */ +void __init __weak sh73a0_register_twd(void) { } + static void __init sh73a0_earlytimer_init(void) { sh73a0_clock_init(); shmobile_earlytimer_init(); + sh73a0_register_twd(); } void __init sh73a0_add_early_devices(void) |