linux/arch/x86/include/asm/timex.h
Ingo Molnar e1b4d11436 x86: use standard PIT frequency
the RDC and ELAN platforms use slighly different PIT clocks, resulting in
a timex.h hack that changes PIT_TICK_RATE during build time. But if a
tester enables any of these platform support .config options, the PIT
will be miscalibrated on standard PC platforms.

So use one frequency - in a subsequent patch we'll add a quirk to allow
x86 platforms to define different PIT frequencies.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-25 16:57:47 +01:00

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C

#ifndef _ASM_X86_TIMEX_H
#define _ASM_X86_TIMEX_H
#include <asm/processor.h>
#include <asm/tsc.h>
/* The PIT ticks at this frequency (in HZ): */
#define PIT_TICK_RATE 1193182
#define CLOCK_TICK_RATE PIT_TICK_RATE
#define ARCH_HAS_READ_CURRENT_TIMER
#endif /* _ASM_X86_TIMEX_H */