diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/cpu/arm1176/bcm2835/timer.c | 14 | ||||
-rw-r--r-- | arch/arm/include/asm/arch-bcm2835/timer.h | 2 |
2 files changed, 13 insertions, 3 deletions
diff --git a/arch/arm/cpu/arm1176/bcm2835/timer.c b/arch/arm/cpu/arm1176/bcm2835/timer.c index d232d7e..2edd671 100644 --- a/arch/arm/cpu/arm1176/bcm2835/timer.c +++ b/arch/arm/cpu/arm1176/bcm2835/timer.c @@ -23,7 +23,7 @@ int timer_init(void) return 0; } -ulong get_timer(ulong base) +ulong get_timer_us(ulong base) { struct bcm2835_timer_regs *regs = (struct bcm2835_timer_regs *)BCM2835_TIMER_PHYSADDR; @@ -31,6 +31,14 @@ ulong get_timer(ulong base) return readl(®s->clo) - base; } +ulong get_timer(ulong base) +{ + ulong us = get_timer_us(0); + us /= (1000000 / CONFIG_SYS_HZ); + us -= base; + return us; +} + unsigned long long get_ticks(void) { return get_timer(0); @@ -46,10 +54,10 @@ void __udelay(unsigned long usec) ulong endtime; signed long diff; - endtime = get_timer(0) + usec; + endtime = get_timer_us(0) + usec; do { - ulong now = get_timer(0); + ulong now = get_timer_us(0); diff = endtime - now; } while (diff >= 0); } diff --git a/arch/arm/include/asm/arch-bcm2835/timer.h b/arch/arm/include/asm/arch-bcm2835/timer.h index 30c70e0..c2001b6 100644 --- a/arch/arm/include/asm/arch-bcm2835/timer.h +++ b/arch/arm/include/asm/arch-bcm2835/timer.h @@ -34,4 +34,6 @@ struct bcm2835_timer_regs { #define BCM2835_TIMER_CS_M1 (1 << 1) #define BCM2835_TIMER_CS_M0 (1 << 0) +extern ulong get_timer_us(ulong base); + #endif |