diff options
Diffstat (limited to 'arch/arm/cpu/arm1136/mx31/timer.c')
| -rw-r--r-- | arch/arm/cpu/arm1136/mx31/timer.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/arch/arm/cpu/arm1136/mx31/timer.c b/arch/arm/cpu/arm1136/mx31/timer.c index 717a2b72b..f49444009 100644 --- a/arch/arm/cpu/arm1136/mx31/timer.c +++ b/arch/arm/cpu/arm1136/mx31/timer.c @@ -43,7 +43,11 @@ DECLARE_GLOBAL_DATA_PTR; -/* "time" is measured in 1 / CONFIG_SYS_HZ seconds, "tick" is internal timer period */ +/* + * "time" is measured in 1 / CONFIG_SYS_HZ seconds, + * "tick" is internal timer period + */ + #ifdef CONFIG_MX31_TIMER_HIGH_PRECISION /* ~0.4% error - measured with stop-watch on 100s boot-delay */ static inline unsigned long long tick_to_time(unsigned long long tick) @@ -68,7 +72,8 @@ static inline unsigned long long us_to_tick(unsigned long long us) } #else /* ~2% error */ -#define TICK_PER_TIME ((CONFIG_MX31_CLK32 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ) +#define TICK_PER_TIME ((CONFIG_MX31_CLK32 + CONFIG_SYS_HZ / 2) \ + / CONFIG_SYS_HZ) #define US_PER_TICK (1000000 / CONFIG_MX31_CLK32) static inline unsigned long long tick_to_time(unsigned long long tick) @@ -91,7 +96,7 @@ static inline unsigned long long us_to_tick(unsigned long long us) #endif /* The 32768Hz 32-bit timer overruns in 131072 seconds */ -int timer_init (void) +int timer_init(void) { int i; @@ -106,7 +111,7 @@ int timer_init (void) return 0; } -unsigned long long get_ticks (void) +unsigned long long get_ticks(void) { ulong now = GPTCNT; /* current tick value */ @@ -119,7 +124,7 @@ unsigned long long get_ticks (void) return gd->tbl; } -ulong get_timer_masked (void) +ulong get_timer_masked(void) { /* * get_ticks() returns a long long (64 bit), it wraps in @@ -130,13 +135,13 @@ ulong get_timer_masked (void) return tick_to_time(get_ticks()); } -ulong get_timer (ulong base) +ulong get_timer(ulong base) { - return get_timer_masked () - base; + return get_timer_masked() - base; } /* delay x useconds AND preserve advance timestamp value */ -void __udelay (unsigned long usec) +void __udelay(unsigned long usec) { unsigned long long tmp; ulong tmo; @@ -148,7 +153,7 @@ void __udelay (unsigned long usec) /*NOP*/; } -void reset_cpu (ulong addr) +void reset_cpu(ulong addr) { struct wdog_regs *wdog = (struct wdog_regs *)WDOG_BASE; wdog->wcr = WDOG_ENABLE; |