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rk30: timer: fix ic bug

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黄涛
2012-02-07 18:41:50 +08:00
parent 2ee6d03474
commit 5c373f9e3d
1 changed files with 12 additions and 6 deletions
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18
arch/arm/mach-rk30/timer.c
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@@ -72,20 +72,26 @@ static inline u32 timer_read(u32 n, u32 offset)
static int rk30_timer_set_next_event(unsigned long cycles, struct clock_event_device *evt)
{
RK_TIMER_DISABLE(TIMER_CLKEVT);
RK_TIMER_SETCOUNT(TIMER_CLKEVT, cycles);
RK_TIMER_ENABLE(TIMER_CLKEVT);
do {
RK_TIMER_DISABLE(TIMER_CLKEVT);
RK_TIMER_SETCOUNT(TIMER_CLKEVT, cycles);
RK_TIMER_ENABLE(TIMER_CLKEVT);
} while (RK_TIMER_READVALUE(TIMER_CLKEVT) > cycles);
return 0;
}
static void rk30_timer_set_mode(enum clock_event_mode mode, struct clock_event_device *evt)
{
u32 count;
switch (mode) {
case CLOCK_EVT_MODE_PERIODIC:
RK_TIMER_DISABLE(TIMER_CLKEVT);
RK_TIMER_SETCOUNT(TIMER_CLKEVT, 24000000 / HZ - 1);
RK_TIMER_ENABLE(TIMER_CLKEVT);
count = 24000000 / HZ - 1;
do {
RK_TIMER_DISABLE(TIMER_CLKEVT);
RK_TIMER_SETCOUNT(TIMER_CLKEVT, count);
RK_TIMER_ENABLE(TIMER_CLKEVT);
} while (RK_TIMER_READVALUE(TIMER_CLKEVT) > count);
break;
case CLOCK_EVT_MODE_RESUME:
case CLOCK_EVT_MODE_ONESHOT: