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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) Marvell International Ltd. and its affiliates
* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
*
* Copyright (C) 2015 Stefan Roese <sr@denx.de>
*/
#include <common.h>
#include <init.h>
#include <asm/io.h>
#include <asm/arch/soc.h>
#include <linux/bitops.h>
#define TIMER_LOAD_VAL 0xffffffff
static int init_done __attribute__((section(".data"))) = 0;
/*
* Timer initialization
*/
int timer_init(void)
{
/* Only init the timer once */
if (init_done)
return 0;
init_done = 1;
/* load value into timer */
writel(TIMER_LOAD_VAL, MVEBU_TIMER_BASE + 0x10);
writel(TIMER_LOAD_VAL, MVEBU_TIMER_BASE + 0x14);
#if defined(CONFIG_ARCH_MVEBU)
/* On Armada XP / 38x ..., the 25MHz clock source needs to be enabled */
setbits_le32(MVEBU_TIMER_BASE + 0x00, BIT(11));
#endif
/* enable timer in auto reload mode */
setbits_le32(MVEBU_TIMER_BASE + 0x00, 0x3);
return 0;
}
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