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path: root/payloads/libpayload/drivers/timer/img_pistachio.c
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/*
 * This file is part of the libpayload project.
 *
 * Copyright (C) 2014 Imagination Technologies
 *
 * 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 <libpayload.h>
#include <arch/cpu.h>

static int get_timer_speed_khz(void)
{
	return get_cpu_speed()/2;
}

uint64_t timer_hz(void)
{
	return lib_sysinfo.cpu_khz * 1000;
}

uint64_t timer_raw_value(void)
{
	return read_c0_count()/(get_timer_speed_khz()/1000);
}