LXR uboot/arch/arm/mach-socfpga/timer.c

   1/*
   2 *  Copyright (C) 2012 Altera Corporation <www.altera.com>
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <common.h>
   8#include <asm/io.h>
   9#include <asm/arch/timer.h>
  10
  11#define TIMER_LOAD_VAL          0xFFFFFFFF
  12
  13static const struct socfpga_timer *timer_base = (void *)CONFIG_SYS_TIMERBASE;
  14
  15/*
  16 * Timer initialization
  17 */
  18int timer_init(void)
  19{
  20        writel(TIMER_LOAD_VAL, &timer_base->load_val);
  21        writel(TIMER_LOAD_VAL, &timer_base->curr_val);
  22        writel(readl(&timer_base->ctrl) | 0x3, &timer_base->ctrl);
  23        return 0;
  24}
  25