Re: [patch] Re: alpha - generic_init_pit - why using RTC for calibration?

Jeff Garzik
2001-07-05T08:47:59Z

Oleg,

How is this relative to HZ, when you remove all references to HZ?

> -#define CALIBRATE_LATCH (52 * LATCH)
> -#define CALIBRATE_TIME (52 * 1000020 / HZ)
> +#define CALIBRATE_LATCH 0xffff
[...]
> + /* and the final result in HZ */
> + return ((unsigned long)cc * CLOCK_TICK_RATE) / CALIBRATE_LATCH;

and in asm-alpha/timex.h,
> #define CLOCK_TICK_RATE 1193180 /* Underlying HZ */

--
Jeff Garzik | Thalidomide, eh?
Building 1024 | So you're saying the eggplant has an accomplice?
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