diff options
Diffstat (limited to 'arch/arm/mach-spear/restart.c')
-rw-r--r-- | arch/arm/mach-spear/restart.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/mach-spear/restart.c b/arch/arm/mach-spear/restart.c new file mode 100644 index 000000000000..2b44500bb718 --- /dev/null +++ b/arch/arm/mach-spear/restart.c | |||
@@ -0,0 +1,34 @@ | |||
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) | ||
20 | void 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 | } | ||