1 #include <linux/module.h>
3 #include <linux/delay.h>
4 #include <linux/platform.h>
9 void (*pm_power_off)(void);
11 void machine_restart(char * __unused)
18 * Visual Workstations restart after this
19 * register is poked on the PIIX4
21 outb(PIIX4_RESET_VAL, PIIX4_RESET_PORT);
24 EXPORT_SYMBOL(machine_restart);
26 void machine_power_off(void)
28 unsigned short pm_status;
29 extern unsigned int pci_bus0;
31 while ((pm_status = inw(PMSTS_PORT)) & 0x100)
32 outw(pm_status, PMSTS_PORT);
34 outw(PM_SUSPEND_ENABLE, PMCNTRL_PORT);
38 #define PCI_CONF1_ADDRESS(bus, devfn, reg) \
39 (0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3))
41 outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8);
42 outl(PIIX_SPECIAL_STOP, 0xCFC);
45 EXPORT_SYMBOL(machine_power_off);
47 void machine_halt(void)
51 EXPORT_SYMBOL(machine_halt);