162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0-only 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * arch/arm/plat-spear/restart.c 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * SPEAr platform specific restart functions 662306a36Sopenharmony_ci * 762306a36Sopenharmony_ci * Copyright (C) 2009 ST Microelectronics 862306a36Sopenharmony_ci * Viresh Kumar <vireshk@kernel.org> 962306a36Sopenharmony_ci */ 1062306a36Sopenharmony_ci#include <linux/io.h> 1162306a36Sopenharmony_ci#include <linux/amba/sp810.h> 1262306a36Sopenharmony_ci#include <linux/reboot.h> 1362306a36Sopenharmony_ci#include <asm/system_misc.h> 1462306a36Sopenharmony_ci#include "spear.h" 1562306a36Sopenharmony_ci#include "generic.h" 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ci#define SPEAR13XX_SYS_SW_RES (VA_MISC_BASE + 0x204) 1862306a36Sopenharmony_civoid spear_restart(enum reboot_mode mode, const char *cmd) 1962306a36Sopenharmony_ci{ 2062306a36Sopenharmony_ci if (mode == REBOOT_SOFT) { 2162306a36Sopenharmony_ci /* software reset, Jump into ROM at address 0 */ 2262306a36Sopenharmony_ci soft_restart(0); 2362306a36Sopenharmony_ci } else { 2462306a36Sopenharmony_ci /* hardware reset, Use on-chip reset capability */ 2562306a36Sopenharmony_ci#ifdef CONFIG_ARCH_SPEAR13XX 2662306a36Sopenharmony_ci writel_relaxed(0x01, SPEAR13XX_SYS_SW_RES); 2762306a36Sopenharmony_ci#endif 2862306a36Sopenharmony_ci#if defined(CONFIG_ARCH_SPEAR3XX) || defined(CONFIG_ARCH_SPEAR6XX) 2962306a36Sopenharmony_ci sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE); 3062306a36Sopenharmony_ci#endif 3162306a36Sopenharmony_ci } 3262306a36Sopenharmony_ci} 33