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/*
* Copyright (C) 2013 Antony Pavlov <antonynpavlov@gmail.com>
*
* This file is part of barebox.
* See file CREDITS for list of people who contributed to this project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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 <common.h>
#include <init.h>
#include <clock.h>
static uint64_t dummy_counter;
static uint64_t dummy_cs_read(void)
{
static int first;
if (!first) {
pr_warn("Warning: Using dummy clocksource\n");
first = 1;
}
dummy_counter += CONFIG_CLOCKSOURCE_DUMMY_RATE;
return dummy_counter;
}
static struct clocksource dummy_cs = {
.read = dummy_cs_read,
.mask = CLOCKSOURCE_MASK(32),
};
static int clocksource_init(void)
{
dummy_counter = 0;
clocks_calc_mult_shift(&dummy_cs.mult, &dummy_cs.shift,
100000000, NSEC_PER_SEC, 10);
pr_debug("clocksource_init: mult=%08x, shift=%08x\n",
dummy_cs.mult, dummy_cs.shift);
return init_clock(&dummy_cs);
}
pure_initcall(clocksource_init);
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