clk.c
// SPDX-License-Identifier: GPL-2.0-only
/*
*
* Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2013 John Crispin <john@phrozen.org>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/export.h>
#include <linux/clkdev.h>
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <asm/time.h>
#include "common.h"
void ralink_clk_add(const char *dev, unsigned long rate)
{
struct clk *clk = clk_register_fixed_rate(NULL, dev, NULL, 0, rate);
if (!clk)
panic("failed to add clock");
clkdev_create(clk, NULL, "%s", dev);
}
void __init plat_time_init(void)
{
struct clk *clk;
ralink_of_remap();
ralink_clk_init();
clk = clk_get_sys("cpu", NULL);
if (IS_ERR(clk))
panic("unable to get CPU clock, err=%ld", PTR_ERR(clk));
pr_info("CPU Clock: %ldMHz\n", clk_get_rate(clk) / 1000000);
mips_hpt_frequency = clk_get_rate(clk) / 2;
clk_put(clk);
timer_probe();
}