diff options
| -rw-r--r-- | arch/arm/mach-s3c2410/include/mach/tick.h | 15 | ||||
| -rw-r--r-- | arch/arm/mach-s3c24a0/include/mach/tick.h | 15 | ||||
| -rw-r--r-- | arch/arm/plat-s3c/time.c | 7 |
3 files changed, 32 insertions, 5 deletions
diff --git a/arch/arm/mach-s3c2410/include/mach/tick.h b/arch/arm/mach-s3c2410/include/mach/tick.h new file mode 100644 index 00000000000..544da41979d --- /dev/null +++ b/arch/arm/mach-s3c2410/include/mach/tick.h @@ -0,0 +1,15 @@ +/* linux/arch/arm/mach-s3c2410/include/mach/tick.h + * + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C2410 - timer tick support + */ + +#define SRCPND_TIMER4 (1<<(IRQ_TIMER4 - IRQ_EINT0)) + +static inline int s3c24xx_ostimer_pending(void) +{ + return __raw_readl(S3C2410_SRCPND) & SRCPND_TIMER4; +} diff --git a/arch/arm/mach-s3c24a0/include/mach/tick.h b/arch/arm/mach-s3c24a0/include/mach/tick.h new file mode 100644 index 00000000000..9dea8ba6fb7 --- /dev/null +++ b/arch/arm/mach-s3c24a0/include/mach/tick.h @@ -0,0 +1,15 @@ +/* linux/arch/arm/mach-s3c24a0/include/mach/tick.h + * + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C24A0 - timer tick support + */ + +#define SUBSRC_TIMER4 (1 << (IRQ_TIMER4 - IRQ_S3CUART_RX0)) + +static inline int s3c24xx_ostimer_pending(void) +{ + return __raw_readl(S3C2410_SUBSRCPND) & SUBSRC_TIMER4; +} diff --git a/arch/arm/plat-s3c/time.c b/arch/arm/plat-s3c/time.c index c6861a05a29..d35e149f4eb 100644 --- a/arch/arm/plat-s3c/time.c +++ b/arch/arm/plat-s3c/time.c @@ -36,6 +36,7 @@ #include <plat/regs-timer.h> #include <mach/regs-irq.h> #include <asm/mach/time.h> +#include <mach/tick.h> #include <plat/clock.h> #include <plat/cpu.h> @@ -91,12 +92,9 @@ static inline unsigned long timer_ticks_to_usec(unsigned long ticks) * IRQs are disabled before entering here from do_gettimeofday() */ -#define SRCPND_TIMER4 (1<<(IRQ_TIMER4 - IRQ_EINT0)) - static unsigned long s3c2410_gettimeoffset (void) { unsigned long tdone; - unsigned long irqpend; unsigned long tval; /* work out how many ticks have gone since last timer interrupt */ @@ -106,8 +104,7 @@ static unsigned long s3c2410_gettimeoffset (void) /* check to see if there is an interrupt pending */ - irqpend = __raw_readl(S3C2410_SRCPND); - if (irqpend & SRCPND_TIMER4) { + if (s3c24xx_ostimer_pending()) { /* re-read the timer, and try and fix up for the missed * interrupt. Note, the interrupt may go off before the * timer has re-loaded from wrapping. |