| #ifndef _ASM_CRIS_ARCH_TIMEX_H |
| #define _ASM_CRIS_ARCH_TIMEX_H |
| |
| #include <hwregs/reg_map.h> |
| #include <hwregs/reg_rdwr.h> |
| #include <hwregs/timer_defs.h> |
| |
| /* |
| * The clock runs at 100MHz, we divide it by 1000000. If you change anything |
| * here you must check time.c as well. |
| */ |
| |
| #define CLOCK_TICK_RATE 100000000 /* Underlying frequency of the HZ timer */ |
| |
| /* The timer0 values gives 10 ns resolution but interrupts at HZ. */ |
| #define TIMER0_FREQ (CLOCK_TICK_RATE) |
| #define TIMER0_DIV (TIMER0_FREQ/(HZ)) |
| |
| /* Convert the value in step of 10 ns to 1us without overflow: */ |
| #define GET_JIFFIES_USEC() \ |
| ((TIMER0_DIV - REG_RD(timer, regi_timer0, r_tmr0_data)) / 100) |
| |
| extern unsigned long get_ns_in_jiffie(void); |
| |
| static inline unsigned long get_us_in_jiffie_highres(void) |
| { |
| return get_ns_in_jiffie() / 1000; |
| } |
| |
| #endif |
| |
