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ep93xx: Fix calculation of sys ticks in clk_to_systicks()
ep93xx: Use unsigned long long for calculation of sys ticks in clk_to_systicks() for proper handling of large intermediate values Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
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@ -31,6 +31,7 @@
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#include <linux/types.h>
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#include <linux/types.h>
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#include <asm/arch/ep93xx.h>
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#include <asm/arch/ep93xx.h>
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#include <asm/io.h>
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#include <asm/io.h>
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#include <div64.h>
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#define TIMER_CLKSEL (1 << 3)
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#define TIMER_CLKSEL (1 << 3)
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#define TIMER_MODE (1 << 6)
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#define TIMER_MODE (1 << 6)
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@ -44,9 +45,10 @@ static ulong lastdec;
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static inline unsigned long clk_to_systicks(unsigned long clk_ticks)
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static inline unsigned long clk_to_systicks(unsigned long clk_ticks)
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{
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{
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unsigned long sys_ticks = (clk_ticks * CONFIG_SYS_HZ) / TIMER_FREQ;
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unsigned long long sys_ticks = (clk_ticks * CONFIG_SYS_HZ);
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do_div(sys_ticks, TIMER_FREQ);
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return sys_ticks;
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return (unsigned long)sys_ticks;
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}
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}
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static inline unsigned long usecs_to_ticks(unsigned long usecs)
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static inline unsigned long usecs_to_ticks(unsigned long usecs)
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