| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * arch/arm/plat-spear/restart.c |
| * |
| * SPEAr platform specific restart functions |
| * |
| * Copyright (C) 2009 ST Microelectronics |
| * Viresh Kumar <vireshk@kernel.org> |
| */ |
| #include <linux/io.h> |
| #include <linux/amba/sp810.h> |
| #include <linux/reboot.h> |
| #include <asm/system_misc.h> |
| #include "spear.h" |
| #include "generic.h" |
| |
| #define SPEAR13XX_SYS_SW_RES (VA_MISC_BASE + 0x204) |
| void spear_restart(enum reboot_mode mode, const char *cmd) |
| { |
| if (mode == REBOOT_SOFT) { |
| /* software reset, Jump into ROM at address 0 */ |
| soft_restart(0); |
| } else { |
| /* hardware reset, Use on-chip reset capability */ |
| #ifdef CONFIG_ARCH_SPEAR13XX |
| writel_relaxed(0x01, SPEAR13XX_SYS_SW_RES); |
| #endif |
| #if defined(CONFIG_ARCH_SPEAR3XX) || defined(CONFIG_ARCH_SPEAR6XX) |
| sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE); |
| #endif |
| } |
| } |
