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