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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/arm/mach-spear/restart.c
Initial import
Diffstat (limited to 'arch/arm/mach-spear/restart.c')
-rw-r--r--arch/arm/mach-spear/restart.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-spear/restart.c b/arch/arm/mach-spear/restart.c
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index 000000000..ce5e098c4
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+++ b/arch/arm/mach-spear/restart.c
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+/*
+ * arch/arm/plat-spear/restart.c
+ *
+ * SPEAr platform specific restart functions
+ *
+ * Copyright (C) 2009 ST Microelectronics
+ * Viresh Kumar <viresh.linux@gmail.com>
+ *
+ * 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
+ }
+}