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/*
* This file is part of the coreboot project.
*
* Copyright 2016 Rockchip Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#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(&timer0_ptr->timer_cur_value0);
value1 = (uint64_t)read32(&timer0_ptr->timer_cur_value1);
return value0 | value1<<32;
}
void timer_monotonic_get(struct mono_time *mt)
{
mono_time_set_usecs(mt, timer_raw_value() / clocks_per_usec);
}
void init_timer(void)
{
write32(&timer0_ptr->timer_load_count0, TIMER_LOAD_VAL);
write32(&timer0_ptr->timer_load_count1, TIMER_LOAD_VAL);
write32(&timer0_ptr->timer_load_count2, 0);
write32(&timer0_ptr->timer_load_count3, 0);
write32(&timer0_ptr->timer_ctrl_reg, 1);
}
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