// SPDX-License-Identifier: GPL-2.0 | |
/* | |
* Copyright (C) 2017-2018 Intel Corporation <www.intel.com> | |
* | |
*/ | |
#include <common.h> | |
#include <asm/io.h> | |
#include <asm/arch/timer.h> | |
/* | |
* Timer initialization | |
*/ | |
int timer_init(void) | |
{ | |
int enable = 0x3; /* timer enable + output signal masked */ | |
int loadval = ~0; | |
/* enable system counter */ | |
writel(enable, SOCFPGA_GTIMER_SEC_ADDRESS); | |
/* enable processor pysical counter */ | |
asm volatile("msr cntp_ctl_el0, %0" : : "r" (enable)); | |
asm volatile("msr cntp_tval_el0, %0" : : "r" (loadval)); | |
return 0; | |
} |