diff options
Diffstat (limited to 'arch/arm/mach-ns9xxx/time.c')
| -rw-r--r-- | arch/arm/mach-ns9xxx/time.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mach-ns9xxx/time.c b/arch/arm/mach-ns9xxx/time.c index b97d0c54a38..3327d302618 100644 --- a/arch/arm/mach-ns9xxx/time.c +++ b/arch/arm/mach-ns9xxx/time.c @@ -24,10 +24,24 @@ static u32 usecs_per_tick; static irqreturn_t ns9xxx_timer_interrupt(int irq, void *dev_id) { + int timerno = irq - IRQ_TIMER0; + u32 tc; + write_seqlock(&xtime_lock); timer_tick(); write_sequnlock(&xtime_lock); + /* clear irq */ + tc = SYS_TC(timerno); + if (REGGET(tc, SYS_TCx, REN) == SYS_TCx_REN_DIS) { + REGSET(tc, SYS_TCx, TEN, DIS); + SYS_TC(timerno) = tc; + } + REGSET(tc, SYS_TCx, INTC, SET); + SYS_TC(timerno) = tc; + REGSET(tc, SYS_TCx, INTC, UNSET); + SYS_TC(timerno) = tc; + return IRQ_HANDLED; } |