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Diffstat (limited to 'arch/arm/mach-ns9xxx/irq.c')
-rw-r--r--arch/arm/mach-ns9xxx/irq.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/mach-ns9xxx/irq.c b/arch/arm/mach-ns9xxx/irq.c
index 83d92724a971..b8c7b00522e6 100644
--- a/arch/arm/mach-ns9xxx/irq.c
+++ b/arch/arm/mach-ns9xxx/irq.c
@@ -21,6 +21,15 @@ static void ns9xxx_ack_irq_timer(unsigned int irq)
{
u32 tc = SYS_TC(irq - IRQ_TIMER0);
+ /*
+ * If the timer is programmed to halt on terminal count, the
+ * timer must be disabled before clearing the interrupt.
+ */
+ if (REGGET(tc, SYS_TCx, REN) == 0) {
+ REGSET(tc, SYS_TCx, TEN, DIS);
+ SYS_TC(irq - IRQ_TIMER0) = tc;
+ }
+
REGSET(tc, SYS_TCx, INTC, SET);
SYS_TC(irq - IRQ_TIMER0) = tc;
@@ -28,7 +37,7 @@ static void ns9xxx_ack_irq_timer(unsigned int irq)
SYS_TC(irq - IRQ_TIMER0) = tc;
}
-void (*ns9xxx_ack_irq_functions[NR_IRQS])(unsigned int) = {
+static void (*ns9xxx_ack_irq_functions[NR_IRQS])(unsigned int) = {
[IRQ_TIMER0] = ns9xxx_ack_irq_timer,
[IRQ_TIMER1] = ns9xxx_ack_irq_timer,
[IRQ_TIMER2] = ns9xxx_ack_irq_timer,