| Russell King | dd1661e | 2011-11-05 21:10:37 +0000 | [diff] [blame] | 1 | /* |
| 2 | * arch/arm/plat-spear/restart.c |
| 3 | * |
| 4 | * SPEAr platform specific restart functions |
| 5 | * |
| 6 | * Copyright (C) 2009 ST Microelectronics |
| Viresh Kumar | 10d8935 | 2012-06-20 12:53:02 -0700 | [diff] [blame] | 7 | * Viresh Kumar <viresh.linux@gmail.com> |
| Russell King | dd1661e | 2011-11-05 21:10:37 +0000 | [diff] [blame] | 8 | * |
| 9 | * This file is licensed under the terms of the GNU General Public |
| 10 | * License version 2. This program is licensed "as is" without any |
| 11 | * warranty of any kind, whether express or implied. |
| 12 | */ |
| 13 | #include <linux/io.h> |
| Catalin Marinas | da660b4 | 2013-01-04 14:17:15 +0000 | [diff] [blame] | 14 | #include <linux/amba/sp810.h> |
| Robin Holt | 7b6d864 | 2013-07-08 16:01:40 -0700 | [diff] [blame] | 15 | #include <linux/reboot.h> |
| David Howells | 9f97da7 | 2012-03-28 18:30:01 +0100 | [diff] [blame] | 16 | #include <asm/system_misc.h> |
| Arnd Bergmann | 5019f0b | 2012-04-11 17:30:11 +0000 | [diff] [blame] | 17 | #include <mach/spear.h> |
| Arnd Bergmann | 2b9c613 | 2012-12-02 15:49:04 +0100 | [diff] [blame] | 18 | #include "generic.h" |
| Russell King | dd1661e | 2011-11-05 21:10:37 +0000 | [diff] [blame] | 19 | |
| Viresh Kumar | e3978dc | 2012-04-19 22:23:13 +0530 | [diff] [blame] | 20 | #define SPEAR13XX_SYS_SW_RES (VA_MISC_BASE + 0x204) |
| Robin Holt | 7b6d864 | 2013-07-08 16:01:40 -0700 | [diff] [blame] | 21 | void spear_restart(enum reboot_mode mode, const char *cmd) |
| Russell King | dd1661e | 2011-11-05 21:10:37 +0000 | [diff] [blame] | 22 | { |
| Robin Holt | 7b6d864 | 2013-07-08 16:01:40 -0700 | [diff] [blame] | 23 | if (mode == REBOOT_SOFT) { |
| Russell King | dd1661e | 2011-11-05 21:10:37 +0000 | [diff] [blame] | 24 | /* software reset, Jump into ROM at address 0 */ |
| 25 | soft_restart(0); |
| 26 | } else { |
| 27 | /* hardware reset, Use on-chip reset capability */ |
| Viresh Kumar | e3978dc | 2012-04-19 22:23:13 +0530 | [diff] [blame] | 28 | #ifdef CONFIG_ARCH_SPEAR13XX |
| 29 | writel_relaxed(0x01, SPEAR13XX_SYS_SW_RES); |
| Arnd Bergmann | af63275 | 2013-01-25 23:09:57 +0000 | [diff] [blame] | 30 | #endif |
| 31 | #if defined(CONFIG_ARCH_SPEAR3XX) || defined(CONFIG_ARCH_SPEAR6XX) |
| Russell King | dd1661e | 2011-11-05 21:10:37 +0000 | [diff] [blame] | 32 | sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE); |
| Viresh Kumar | e3978dc | 2012-04-19 22:23:13 +0530 | [diff] [blame] | 33 | #endif |
| Russell King | dd1661e | 2011-11-05 21:10:37 +0000 | [diff] [blame] | 34 | } |
| 35 | } |