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 
16 static struct systimer *systimer_base = (struct systimer *)SYSTIMER_BASE;
17 
18 /*
19  * Start the timer
20  */
timer_init(void)21 int 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