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/* SPDX-License-Identifier: GPL-2.0 */
#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
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