54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/*
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*
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* (C) Copyright 2007
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* Sascha Hauer, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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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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*/
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#include <common.h>
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#include <init.h>
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#include <clock.h>
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#include <mach/netx-regs.h>
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uint64_t netx_clocksource_read(void)
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{
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return GPIO_REG(GPIO_COUNTER_CURRENT(0));
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}
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static struct clocksource cs = {
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.read = netx_clocksource_read,
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.mask = CLOCKSOURCE_MASK(32),
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.shift = 10,
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};
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static int clocksource_init (void)
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{
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/* disable timer initially */
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GPIO_REG(GPIO_COUNTER_CTRL(0)) = 0;
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/* Reset the timer value to zero */
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GPIO_REG(GPIO_COUNTER_CURRENT(0)) = 0;
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GPIO_REG(GPIO_COUNTER_MAX(0)) = 0xffffffff;
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GPIO_REG(GPIO_COUNTER_CTRL(0)) = COUNTER_CTRL_RUN;
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cs.mult = clocksource_hz2mult(100 * 1000 * 1000, cs.shift);
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init_clock(&cs);
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return 0;
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}
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core_initcall(clocksource_init);
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