/* * 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 <arch/io.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); }