ARM: Realview/Versatile: remove useless TIMER_RELOAD calculations
Realview/Versatile copied the Integrator timer code, including the calculations for ensuring that the reload value fits into the 16-bit counter. However, these platforms have a 32-bit counter which is clocked at a slower rate. The result is that the preprocessor conditions are never triggered: TICKS_PER_uSEC = 1, mSEC_10 = 10000, which is 0x2710 - less than 0x10000. So, remove the unnecessary complexity, reducing the TIMER_RELOAD calculation to just: TICKS_PER_uSEC * mSEC_10 Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -33,17 +33,7 @@
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/*
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* How long is the timer interval?
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*/
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#define TIMER_INTERVAL (TICKS_PER_uSEC * mSEC_10)
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#if TIMER_INTERVAL >= 0x100000
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#define TIMER_RELOAD (TIMER_INTERVAL >> 8)
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#define TIMER_DIVISOR (TIMER_CTRL_DIV256)
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#elif TIMER_INTERVAL >= 0x10000
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#define TIMER_RELOAD (TIMER_INTERVAL >> 4) /* Divide by 16 */
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#define TIMER_DIVISOR (TIMER_CTRL_DIV16)
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#else
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#define TIMER_RELOAD (TIMER_INTERVAL)
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#define TIMER_DIVISOR (TIMER_CTRL_DIV1)
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#endif
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#define TIMER_RELOAD (TICKS_PER_uSEC * mSEC_10)
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static void __iomem *clksrc_base;
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