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ArmPkg: ArmArchTimerLib: use edk2-conformant (UINT64 * UINT32) / UINT32 

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Olivier Martin <Olivier.martin@arm.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16690 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Laszlo Ersek 2015-02-02 12:01:38 +00:00 committed by lersek
parent 074a67fc80
commit b36bc5af58
1 changed files with 7 additions and 1 deletions
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8
ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.c
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@ -96,7 +96,13 @@ MicroSecondDelay (
// Calculate counter ticks that can represent requested delay:
// = MicroSeconds x TICKS_PER_MICRO_SEC
// = MicroSeconds x Frequency.10^-6
TimerTicks64 = ((UINT64)MicroSeconds * PcdGet32 (PcdArmArchTimerFreqInHz)) / 1000000U;
TimerTicks64 = DivU64x32 (
MultU64x32 (
MicroSeconds,
PcdGet32 (PcdArmArchTimerFreqInHz)
),
1000000U
);
// Read System Counter value
SystemCounterVal = ArmGenericTimerGetSystemCount ();