1// SPDX-License-Identifier: GPL-2.0+ 2/* 3 * Copyright 2010-2011 Calxeda, Inc. 4 * 5 * Based on arm926ejs/mx27/timer.c 6 */ 7 8#include <common.h> 9#include <init.h> 10#include <asm/io.h> 11#include <asm/arch-armv7/systimer.h> 12 13#undef SYSTIMER_BASE 14#define SYSTIMER_BASE 0xFFF34000 /* Timer 0 and 1 base */ 15 16static struct systimer *systimer_base = (struct systimer *)SYSTIMER_BASE; 17 18/* 19 * Start the timer 20 */ 21int timer_init(void) 22{ 23 /* 24 * Setup timer0 25 */ 26 writel(0, &systimer_base->timer0control); 27 writel(SYSTIMER_RELOAD, &systimer_base->timer0load); 28 writel(SYSTIMER_RELOAD, &systimer_base->timer0value); 29 writel(SYSTIMER_EN | SYSTIMER_32BIT | SYSTIMER_PRESC_256, 30 &systimer_base->timer0control); 31 32 return 0; 33 34} 35