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microblaze: Clear top bit from cnt32_to_63 

Top bit is used as garbage and it must be clear
explicitly.
It is causing the problem with soft lookup code
because it checks delays which are long when
top bit is setup.

Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2011-09-23 09:52:24 +02:00
parent e9308cfd5a
commit 9c6f6f549f
1 changed files with 2 additions and 1 deletions
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3
arch/microblaze/kernel/timer.c
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@ -308,7 +308,8 @@ unsigned long long notrace sched_clock(void)
{
if (timer_initialized) {
struct clocksource *cs = &clocksource_microblaze;
cycle_t cyc = cnt32_to_63(cs->read(NULL));
cycle_t cyc = cnt32_to_63(cs->read(NULL)) & LLONG_MAX;
return clocksource_cyc2ns(cyc, cs->mult, cs->shift);
}
return 0;