historical/m0-applesillicon.git/xnu-qemu-arm64-5.1.0/roms/u-boot/arch/arm/mach-socfpga/timer.c
2024-01-16 11:20:27 -06:00

23 lines
511 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2012 Altera Corporation <www.altera.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/timer.h>
#define TIMER_LOAD_VAL 0xFFFFFFFF
static const struct socfpga_timer *timer_base = (void *)CONFIG_SYS_TIMERBASE;
/*
* Timer initialization
*/
int timer_init(void)
{
writel(TIMER_LOAD_VAL, &timer_base->load_val);
writel(TIMER_LOAD_VAL, &timer_base->curr_val);
writel(readl(&timer_base->ctrl) | 0x3, &timer_base->ctrl);
return 0;
}