1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * arch/arm/plat-spear/restart.c
4 *
5 * SPEAr platform specific restart functions
6 *
7 * Copyright (C) 2009 ST Microelectronics
8 * Viresh Kumar <vireshk@kernel.org>
9 */
10#include <linux/io.h>
11#include <linux/amba/sp810.h>
12#include <linux/reboot.h>
13#include <asm/system_misc.h>
14#include "spear.h"
15#include "generic.h"
16
17#define SPEAR13XX_SYS_SW_RES			(VA_MISC_BASE + 0x204)
18void spear_restart(enum reboot_mode mode, const char *cmd)
19{
20	if (mode == REBOOT_SOFT) {
21		/* software reset, Jump into ROM at address 0 */
22		soft_restart(0);
23	} else {
24		/* hardware reset, Use on-chip reset capability */
25#ifdef CONFIG_ARCH_SPEAR13XX
26		writel_relaxed(0x01, SPEAR13XX_SYS_SW_RES);
27#endif
28#if defined(CONFIG_ARCH_SPEAR3XX) || defined(CONFIG_ARCH_SPEAR6XX)
29		sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE);
30#endif
31	}
32}
33