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powerpc: mpc83xx: Fix timer value calculation

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TBU and TBL are specified as two 32-bit registers that form a 64-bit
value, but the calculation only shifted TBU by 16 bits.

Fix this by actually shifting 32 bits.

Reviewed-by: Sinan Akman <sinan@writeme.com>
Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
This commit is contained in:
J. Neuschäfer 2024-12-20 11:37:51 +01:00 • committed by Tom Rini
parent 337bfdce5a
commit deb26b6c29
1 changed files with 1 additions and 1 deletions
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2
drivers/timer/mpc83xx_timer.c
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@ -206,7 +206,7 @@ static u64 mpc83xx_timer_get_count(struct udevice *dev)
tbl = mftb();
} while (tbu != mftbu());
return (tbu * 0x10000ULL) + tbl;
return (uint64_t)tbu << 32 | tbl;
}
static int mpc83xx_timer_probe(struct udevice *dev)