diff options
Diffstat (limited to 'ArmPkg/Library/ArmArchTimerLib')
| -rw-r--r-- | ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c b/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c index d1cd0c8e6e..4fe7cb8d64 100644 --- a/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c +++ b/ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c @@ -82,8 +82,10 @@ MicroSecondDelay ( UINT64 TimerTicks64;
UINT64 SystemCounterVal;
- // Calculate counter ticks that can represent requested delay
- TimerTicks64 = MultU64x32 (MicroSeconds, TICKS_PER_MICRO_SEC);
+ // Calculate counter ticks that can represent requested delay:
+ // = MicroSeconds x TICKS_PER_MICRO_SEC
+ // = MicroSeconds x Frequency.10^-6
+ TimerTicks64 = (MicroSeconds * PcdGet32 (PcdArmArchTimerFreqInHz)) / 1000000U;
// Read System Counter value
SystemCounterVal = ArmArchTimerGetSystemCount ();
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