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-rw-r--r--arch/arm/mach-spear/restart.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/mach-spear/restart.c b/arch/arm/mach-spear/restart.c
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+++ b/arch/arm/mach-spear/restart.c
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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 <viresh.linux@gmail.com>
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 <asm/system_misc.h>
16#include <mach/spear.h>
17#include "generic.h"
18
19#define SPEAR13XX_SYS_SW_RES (VA_MISC_BASE + 0x204)
20void spear_restart(char mode, const char *cmd)
21{
22 if (mode == 's') {
23 /* software reset, Jump into ROM at address 0 */
24 soft_restart(0);
25 } else {
26 /* hardware reset, Use on-chip reset capability */
27#ifdef CONFIG_ARCH_SPEAR13XX
28 writel_relaxed(0x01, SPEAR13XX_SYS_SW_RES);
29#endif
30#if defined(CONFIG_ARCH_SPEAR3XX) || defined(CONFIG_ARCH_SPEAR6XX)
31 sysctl_soft_reset((void __iomem *)VA_SPEAR_SYS_CTRL_BASE);
32#endif
33 }
34}