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/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include <timer.h>
#include <timestamp.h>
#include <arch/cpu.h>
#include <soc/cpu.h>
static int get_count_mhz_freq(void)
{
static unsigned count_mhz_freq;
if (!count_mhz_freq) {
if (IMG_PLATFORM_ID() != IMG_PLATFORM_ID_SILICON)
count_mhz_freq = 25; /* FPGA board */
/*
* Will need some means of finding out the counter
* frequency on a real SOC
*/
}
return count_mhz_freq;
}
void timer_monotonic_get(struct mono_time *mt)
{
mt->microseconds = (long)timestamp_get();
}
uint64_t timestamp_get(void)
{
return read_c0_count()/get_count_mhz_freq();
}
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