1 files changed, 55 insertions, 0 deletions
diff --git a/arch/x86/mach-visws/reboot.c b/arch/x86/mach-visws/reboot.c
new file mode 100644
index 000000000000..99332abfad42
--- /dev/null
+++ b/arch/x86/mach-visws/reboot.c
@@ -0,0 +1,55 @@
+#include <linux/module.h>
+#include <linux/smp.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+#include "piix4.h"
+
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
+void machine_shutdown(void)
+{
+#ifdef CONFIG_SMP
+	smp_send_stop();
+#endif
+}
+
+void machine_emergency_restart(void)
+{
+	/*
+	 * Visual Workstations restart after this
+	 * register is poked on the PIIX4
+	 */
+	outb(PIIX4_RESET_VAL, PIIX4_RESET_PORT);
+}
+
+void machine_restart(char * __unused)
+{
+	machine_shutdown();
+	machine_emergency_restart();
+}
+
+void machine_power_off(void)
+{
+	unsigned short pm_status;
+	extern unsigned int pci_bus0;
+
+	while ((pm_status = inw(PMSTS_PORT)) & 0x100)
+		outw(pm_status, PMSTS_PORT);
+
+	outw(PM_SUSPEND_ENABLE, PMCNTRL_PORT);
+
+	mdelay(10);
+
+#define PCI_CONF1_ADDRESS(bus, devfn, reg) \
+	(0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3))
+
+	outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8);
+	outl(PIIX_SPECIAL_STOP, 0xCFC);
+}
+
+void machine_halt(void)
+{
+}
+