original_kernel/arch/mips/loongson1/common/clock.c

29 lines
708 B
C

/*
* Copyright (c) 2011 Zhang, Keguang <keguang.zhang@gmail.com>
*
* 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; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/clk.h>
#include <linux/err.h>
#include <asm/time.h>
#include <platform.h>
void __init plat_time_init(void)
{
struct clk *clk;
/* Initialize LS1X clocks */
ls1x_clk_init();
/* setup mips r4k timer */
clk = clk_get(NULL, "cpu");
if (IS_ERR(clk))
panic("unable to get cpu clock, err=%ld", PTR_ERR(clk));
mips_hpt_frequency = clk_get_rate(clk) / 2;
}