From mboxrd@z Thu Jan 1 00:00:00 1970 From: pawel.moll@arm.com (Pawel Moll) Date: Mon, 24 Jan 2011 16:39:48 +0000 Subject: [PATCH] arm: Reset SP804 timer when initialising it as a clock events device Message-ID: <1295887188-25924-1-git-send-email-pawel.moll@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The SP804 driver resets relevant timer when initialising it as a clock source, but it doesn't do this for clock event device. Fixed. Signed-off-by: Pawel Moll --- arch/arm/common/timer-sp.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c index 6ef3342..e64cad3 100644 --- a/arch/arm/common/timer-sp.c +++ b/arch/arm/common/timer-sp.c @@ -142,6 +142,9 @@ void __init sp804_clockevents_init(void __iomem *base, unsigned int timer_irq) clkevt_base = base; + /* Reset the timer to prevent spurious interrupts */ + writel(0, clkevt_base + TIMER_CTRL); + evt->irq = timer_irq; evt->mult = div_sc(TIMER_FREQ_KHZ, NSEC_PER_MSEC, evt->shift); evt->max_delta_ns = clockevent_delta2ns(0xffffffff, evt); -- 1.6.3.3