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52 lines
945 B
52 lines
945 B
20 years ago
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#include <linux/module.h>
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#include <linux/smp.h>
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#include <linux/delay.h>
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#include <linux/platform.h>
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#include <asm/io.h>
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#include "piix4.h"
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void (*pm_power_off)(void);
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void machine_restart(char * __unused)
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{
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#ifdef CONFIG_SMP
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smp_send_stop();
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#endif
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/*
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* Visual Workstations restart after this
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* register is poked on the PIIX4
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*/
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outb(PIIX4_RESET_VAL, PIIX4_RESET_PORT);
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}
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EXPORT_SYMBOL(machine_restart);
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void machine_power_off(void)
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{
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unsigned short pm_status;
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extern unsigned int pci_bus0;
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while ((pm_status = inw(PMSTS_PORT)) & 0x100)
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outw(pm_status, PMSTS_PORT);
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outw(PM_SUSPEND_ENABLE, PMCNTRL_PORT);
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mdelay(10);
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#define PCI_CONF1_ADDRESS(bus, devfn, reg) \
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(0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3))
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outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8);
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outl(PIIX_SPECIAL_STOP, 0xCFC);
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}
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EXPORT_SYMBOL(machine_power_off);
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void machine_halt(void)
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{
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}
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EXPORT_SYMBOL(machine_halt);
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