diff options
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/arm_arch_timer.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index e09d4427f604..f6c5f8916e59 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -774,6 +774,13 @@ static __always_inline void set_next_event_mem(const int access, unsigned long e u64 cnt; ctrl = arch_timer_reg_read(access, ARCH_TIMER_REG_CTRL, clk); + + /* Timer must be disabled before programming CVAL */ + if (ctrl & ARCH_TIMER_CTRL_ENABLE) { + ctrl &= ~ARCH_TIMER_CTRL_ENABLE; + arch_timer_reg_write(access, ARCH_TIMER_REG_CTRL, ctrl, clk); + } + ctrl |= ARCH_TIMER_CTRL_ENABLE; ctrl &= ~ARCH_TIMER_CTRL_IT_MASK; |