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armv8: define usec2ticks function

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usec2ticks() function has been defined for ARMv8 which will
be used by SEC Driver.

Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
This commit is contained in:
Aneesh Bansal 2015-12-08 13:54:26 +05:30 • committed by York Sun
parent beedbc2ea0
commit b644d3e932
1 changed files with 11 additions and 0 deletions
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11
arch/arm/cpu/armv8/generic_timer.c
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@ -40,3 +40,14 @@ unsigned long timer_read_counter(void)
#endif
return cntpct;
}
unsigned long usec2ticks(unsigned long usec)
{
ulong ticks;
if (usec < 1000)
ticks = ((usec * (get_tbclk()/1000)) + 500) / 1000;
else
ticks = ((usec / 10) * (get_tbclk() / 100000));
return ticks;
}