mirror of https://gitee.com/openkylin/linux.git
17 lines
429 B
C
17 lines
429 B
C
/*
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* arch/arm/mach-ixp4xx/include/mach/timex.h
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*
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*/
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#include <mach/hardware.h>
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/*
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* We use IXP425 General purpose timer for our timer needs, it runs at
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* 66.66... MHz. We do a convulted calculation of CLOCK_TICK_RATE b/c the
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* timer register ignores the bottom 2 bits of the LATCH value.
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*/
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#define IXP4XX_TIMER_FREQ 66666000
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#define CLOCK_TICK_RATE \
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(((IXP4XX_TIMER_FREQ / HZ & ~IXP4XX_OST_RELOAD_MASK) + 1) * HZ)
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