1 files changed, 98 insertions, 0 deletions

diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
new file mode 100644
index 000000000000..b1fca66bb92e
--- /dev/null
+++ b/arch/sh/kernel/reboot.c
@@ -0,0 +1,98 @@
+#include <linux/pm.h>
+#include <linux/kexec.h>
+#include <linux/kernel.h>
+#include <linux/reboot.h>
+#include <linux/module.h>
+#ifdef CONFIG_SUPERH32
+#include <asm/watchdog.h>
+#endif
+#include <asm/addrspace.h>
+#include <asm/reboot.h>
+#include <asm/system.h>
+
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
+#ifdef CONFIG_SUPERH32
+static void watchdog_trigger_immediate(void)
+{
+        sh_wdt_write_cnt(0xFF);
+        sh_wdt_write_csr(0xC2);
+}
+#endif
+
+static void native_machine_restart(char * __unused)
+{
+        local_irq_disable();
+
+        /* Address error with SR.BL=1 first. */
+        trigger_address_error();
+
+#ifdef CONFIG_SUPERH32
+        /* If that fails or is unsupported, go for the watchdog next. */
+        watchdog_trigger_immediate();
+#endif
+
+        /*
+         * Give up and sleep.
+         */
+        while (1)
+                cpu_sleep();
+}
+
+static void native_machine_shutdown(void)
+{
+        smp_send_stop();
+}
+
+static void native_machine_power_off(void)
+{
+        if (pm_power_off)
+                pm_power_off();
+}
+
+static void native_machine_halt(void)
+{
+        /* stop other cpus */
+        machine_shutdown();
+
+        /* stop this cpu */
+        stop_this_cpu(NULL);
+}
+
+struct machine_ops machine_ops = {
+        .power_off      = native_machine_power_off,
+        .shutdown       = native_machine_shutdown,
+        .restart        = native_machine_restart,
+        .halt           = native_machine_halt,
+#ifdef CONFIG_KEXEC
+        .crash_shutdown = native_machine_crash_shutdown,
+#endif
+};
+
+void machine_power_off(void)
+{
+        machine_ops.power_off();
+}
+
+void machine_shutdown(void)
+{
+        machine_ops.shutdown();
+}
+
+void machine_restart(char *cmd)
+{
+        machine_ops.restart(cmd);
+}
+
+void machine_halt(void)
+{
+        machine_ops.halt();
+}
+
+#ifdef CONFIG_KEXEC
+void machine_crash_shutdown(struct pt_regs *regs)
+{
+        machine_ops.crash_shutdown(regs);
+}
+#endif