diff options
Diffstat (limited to 'arch/h8300/include/asm/timer.h')
| -rw-r--r-- | arch/h8300/include/asm/timer.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/h8300/include/asm/timer.h b/arch/h8300/include/asm/timer.h new file mode 100644 index 000000000000..def80464d38f --- /dev/null +++ b/arch/h8300/include/asm/timer.h | |||
| @@ -0,0 +1,25 @@ | |||
| 1 | #ifndef __H8300_TIMER_H | ||
| 2 | #define __H8300_TIMER_H | ||
| 3 | |||
| 4 | void h8300_timer_tick(void); | ||
| 5 | void h8300_timer_setup(void); | ||
| 6 | void h8300_gettod(unsigned int *year, unsigned int *mon, unsigned int *day, | ||
| 7 | unsigned int *hour, unsigned int *min, unsigned int *sec); | ||
| 8 | |||
| 9 | #define TIMER_FREQ (CONFIG_CPU_CLOCK*10000) /* Timer input freq. */ | ||
| 10 | |||
| 11 | #define calc_param(cnt, div, rate, limit) \ | ||
| 12 | do { \ | ||
| 13 | cnt = TIMER_FREQ / HZ; \ | ||
| 14 | for (div = 0; div < ARRAY_SIZE(divide_rate); div++) { \ | ||
| 15 | if (rate[div] == 0) \ | ||
| 16 | continue; \ | ||
| 17 | if ((cnt / rate[div]) > limit) \ | ||
| 18 | break; \ | ||
| 19 | } \ | ||
| 20 | if (div == ARRAY_SIZE(divide_rate)) \ | ||
| 21 | panic("Timer counter overflow"); \ | ||
| 22 | cnt /= divide_rate[div]; \ | ||
| 23 | } while(0) | ||
| 24 | |||
| 25 | #endif | ||
