1 files changed, 51 insertions, 0 deletions

diff --git a/arch/i386/mach-visws/reboot.c b/arch/i386/mach-visws/reboot.c
new file mode 100644
index 000000000000..3a81e904a7b8
--- /dev/null
+++ b/arch/i386/mach-visws/reboot.c
@@ -0,0 +1,51 @@
+#include <linux/module.h>
+#include <linux/smp.h>
+#include <linux/delay.h>
+#include <linux/platform.h>
+
+#include <asm/io.h>
+#include "piix4.h"
+
+void (*pm_power_off)(void);
+
+void machine_restart(char * __unused)
+{
+#ifdef CONFIG_SMP
+        smp_send_stop();
+#endif
+
+        /*
+         * Visual Workstations restart after this
+         * register is poked on the PIIX4
+         */
+        outb(PIIX4_RESET_VAL, PIIX4_RESET_PORT);
+}
+
+EXPORT_SYMBOL(machine_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);
+}
+
+EXPORT_SYMBOL(machine_power_off);
+
+void machine_halt(void)
+{
+}
+
+EXPORT_SYMBOL(machine_halt);