timer.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <device/mmio.h>
#include <delay.h>
#include <soc/timer.h>
#include <stdint.h>
#include <timer.h>
 
static uint64_t timer_raw_value(void)
{
        uint64_t value0;
        uint64_t value1;
 
        value0 = (uint64_t)read32(&timer7_ptr->timer_curr_value0);
        value1 = (uint64_t)read32(&timer7_ptr->timer_curr_value1);
        value0 = value0 | value1<<32;
        return value0;
}
 
void timer_monotonic_get(struct mono_time *mt)
{
        mono_time_set_usecs(mt, timer_raw_value() / clocks_per_usec);
}
 
void init_timer(void)
{
        write32(&timer7_ptr->timer_load_count0, TIMER_LOAD_VAL);
        write32(&timer7_ptr->timer_load_count1, TIMER_LOAD_VAL);
        write32(&timer7_ptr->timer_ctrl_reg, 1);
}