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utils: Use CPU timer instead of AIC timer

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Signed-off-by: Hector Martin <marcan@marcan.st>
This commit is contained in:
Hector Martin 2021-11-01 18:57:51 +09:00
parent bc82dbea4e
commit 425daaedbd
1 changed files with 3 additions and 5 deletions
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8
src/utils.c
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@ -87,13 +87,11 @@ void __assert_fail(const char *assertion, const char *file, unsigned int line, c
flush_and_reboot();
}
#define AIC_TIMER 0x23b108020
void udelay(u32 d)
{
u32 delay = d * 24;
u32 val = read32(AIC_TIMER);
while ((read32(AIC_TIMER) - val) < delay)
u64 delay = (u64)d * mrs(CNTFRQ_EL0) / 1000000;
u32 val = mrs(CNTPCT_EL0);
while ((mrs(CNTPCT_EL0) - val) < delay)
;
}