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#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);
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)
{
}
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