blob: 223b95e210edd7146c6a8549bbf7f43b362d105b [file] [log] [blame] [edit]
/*
* (C) Copyright 2013
* David Feng <fenghua@phytium.com.cn>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <asm/system.h>
/*
* Generic timer implementation of get_tbclk()
*/
unsigned long get_tbclk(void)
{
unsigned long cntfrq;
asm volatile("mrs %0, cntfrq_el0" : "=r" (cntfrq));
return cntfrq;
}
/*
* Generic timer implementation of timer_read_counter()
*/
unsigned long timer_read_counter(void)
{
unsigned long cntpct;
isb();
asm volatile("mrs %0, cntpct_el0" : "=r" (cntpct));
return cntpct;
}