18c2ecf20Sopenharmony_ci/* 28c2ecf20Sopenharmony_ci * arch/arm/plat-spear/restart.c 38c2ecf20Sopenharmony_ci * 48c2ecf20Sopenharmony_ci * SPEAr platform specific restart functions 58c2ecf20Sopenharmony_ci * 68c2ecf20Sopenharmony_ci * Copyright (C) 2009 ST Microelectronics 78c2ecf20Sopenharmony_ci * Viresh Kumar <vireshk@kernel.org> 88c2ecf20Sopenharmony_ci * 98c2ecf20Sopenharmony_ci * This file is licensed under the terms of the GNU General Public 108c2ecf20Sopenharmony_ci * License version 2. This program is licensed "as is" without any 118c2ecf20Sopenharmony_ci * warranty of any kind, whether express or implied. 128c2ecf20Sopenharmony_ci */ 138c2ecf20Sopenharmony_ci#include <linux/io.h> 148c2ecf20Sopenharmony_ci#include <linux/amba/sp810.h> 158c2ecf20Sopenharmony_ci#include <linux/reboot.h> 168c2ecf20Sopenharmony_ci#include <asm/system_misc.h> 178c2ecf20Sopenharmony_ci#include <mach/spear.h> 188c2ecf20Sopenharmony_ci#include "generic.h" 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci#define SPEAR13XX_SYS_SW_RES (VA_MISC_BASE + 0x204) 218c2ecf20Sopenharmony_civoid spear_restart(enum reboot_mode mode, const char *cmd) 228c2ecf20Sopenharmony_ci{ 238c2ecf20Sopenharmony_ci if (mode == REBOOT_SOFT) { 248c2ecf20Sopenharmony_ci /* software reset, Jump into ROM at address 0 */ 258c2ecf20Sopenharmony_ci soft_restart(0); 268c2ecf20Sopenharmony_ci } else { 278c2ecf20Sopenharmony_ci /* hardware reset, Use on-chip reset capability */ 288c2ecf20Sopenharmony_ci#ifdef CONFIG_ARCH_SPEAR13XX 298c2ecf20Sopenharmony_ci writel_relaxed(0x01, SPEAR13XX_SYS_SW_RES); 308c2ecf20Sopenharmony_ci#endif 318c2ecf20Sopenharmony_ci#if defined(CONFIG_ARCH_SPEAR3XX) || defined(CONFIG_ARCH_SPEAR6XX) 328c2ecf20Sopenharmony_ci sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE); 338c2ecf20Sopenharmony_ci#endif 348c2ecf20Sopenharmony_ci } 358c2ecf20Sopenharmony_ci} 36