Staging
v0.7.0
v0.7.0
// SPDX-License-Identifier: GPL-2.0-only
/*
* Pistachio clocksource/timer setup
*
* Copyright (C) 2014 Google, Inc.
*/
#include <linux/clk.h>
#include <linux/clocksource.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/of_clk.h>
#include <asm/mips-cps.h>
#include <asm/time.h>
unsigned int get_c0_compare_int(void)
{
return gic_get_c0_compare_int();
}
int get_c0_perfcount_int(void)
{
return gic_get_c0_perfcount_int();
}
EXPORT_SYMBOL_GPL(get_c0_perfcount_int);
int get_c0_fdc_int(void)
{
return gic_get_c0_fdc_int();
}
void __init plat_time_init(void)
{
struct device_node *np;
struct clk *clk;
of_clk_init(NULL);
timer_probe();
np = of_get_cpu_node(0, NULL);
if (!np) {
pr_err("Failed to get CPU node\n");
return;
}
clk = of_clk_get(np, 0);
if (IS_ERR(clk)) {
pr_err("Failed to get CPU clock: %ld\n", PTR_ERR(clk));
return;
}
mips_hpt_frequency = clk_get_rate(clk) / 2;
clk_put(clk);
}