[deliverable/linux.git] / arch / arm / mach-spear / restart.c

/*
 * arch/arm/plat-spear/restart.c
 *
 * SPEAr platform specific restart functions
 *
 * Copyright (C) 2009 ST Microelectronics
 * Viresh Kumar <vireshk@kernel.org>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */
#include <linux/io.h>
#include <linux/amba/sp810.h>
#include <linux/reboot.h>
#include <asm/system_misc.h>
#include <mach/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
	}
}
Commit	Line	Data
	1	/*
	2	* arch/arm/plat-spear/restart.c
	3	*
	4	* SPEAr platform specific restart functions
	5	*
	6	* Copyright (C) 2009 ST Microelectronics
	7	* Viresh Kumar <vireshk@kernel.org>
	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>
	14	#include <linux/amba/sp810.h>
	15	#include <linux/reboot.h>
	16	#include <asm/system_misc.h>
	17	#include <mach/spear.h>
	18	#include "generic.h"
	19
	20	#define SPEAR13XX_SYS_SW_RES (VA_MISC_BASE + 0x204)
	21	void spear_restart(enum reboot_mode mode, const char *cmd)
	22	{
	23	if (mode == REBOOT_SOFT) {
	24	/* software reset, Jump into ROM at address 0 */
	25	soft_restart(0);
	26	} else {
	27	/* hardware reset, Use on-chip reset capability */
	28	#ifdef CONFIG_ARCH_SPEAR13XX
	29	writel_relaxed(0x01, SPEAR13XX_SYS_SW_RES);
	30	#endif
	31	#if defined(CONFIG_ARCH_SPEAR3XX) \|\| defined(CONFIG_ARCH_SPEAR6XX)
	32	sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE);
	33	#endif
	34	}
	35	}