2011-11-06 05:10:37 +08:00
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/*
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* arch/arm/plat-spear/restart.c
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*
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* SPEAr platform specific restart functions
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*
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* Copyright (C) 2009 ST Microelectronics
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2015-07-18 07:23:50 +08:00
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* Viresh Kumar <vireshk@kernel.org>
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2011-11-06 05:10:37 +08:00
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/io.h>
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2013-01-04 22:17:15 +08:00
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#include <linux/amba/sp810.h>
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2013-07-09 07:01:40 +08:00
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#include <linux/reboot.h>
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2012-03-29 01:30:01 +08:00
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#include <asm/system_misc.h>
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2012-04-12 01:30:11 +08:00
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#include <mach/spear.h>
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2012-12-02 22:49:04 +08:00
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#include "generic.h"
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2011-11-06 05:10:37 +08:00
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2012-04-20 00:53:13 +08:00
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#define SPEAR13XX_SYS_SW_RES (VA_MISC_BASE + 0x204)
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2013-07-09 07:01:40 +08:00
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void spear_restart(enum reboot_mode mode, const char *cmd)
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2011-11-06 05:10:37 +08:00
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{
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2013-07-09 07:01:40 +08:00
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if (mode == REBOOT_SOFT) {
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2011-11-06 05:10:37 +08:00
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/* software reset, Jump into ROM at address 0 */
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soft_restart(0);
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} else {
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/* hardware reset, Use on-chip reset capability */
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2012-04-20 00:53:13 +08:00
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#ifdef CONFIG_ARCH_SPEAR13XX
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writel_relaxed(0x01, SPEAR13XX_SYS_SW_RES);
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2013-01-26 07:09:57 +08:00
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#endif
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#if defined(CONFIG_ARCH_SPEAR3XX) || defined(CONFIG_ARCH_SPEAR6XX)
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2011-11-06 05:10:37 +08:00
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sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE);
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2012-04-20 00:53:13 +08:00
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#endif
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2011-11-06 05:10:37 +08:00
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}
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}
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