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-rw-r--r--arch/i386/mach-visws/reboot.c51
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 @@
1#include <linux/module.h>
2#include <linux/smp.h>
3#include <linux/delay.h>
4#include <linux/platform.h>
5
6#include <asm/io.h>
7#include "piix4.h"
8
9void (*pm_power_off)(void);
10
11void machine_restart(char * __unused)
12{
13#ifdef CONFIG_SMP
14 smp_send_stop();
15#endif
16
17 /*
18 * Visual Workstations restart after this
19 * register is poked on the PIIX4
20 */
21 outb(PIIX4_RESET_VAL, PIIX4_RESET_PORT);
22}
23
24EXPORT_SYMBOL(machine_restart);
25
26void machine_power_off(void)
27{
28 unsigned short pm_status;
29 extern unsigned int pci_bus0;
30
31 while ((pm_status = inw(PMSTS_PORT)) & 0x100)
32 outw(pm_status, PMSTS_PORT);
33
34 outw(PM_SUSPEND_ENABLE, PMCNTRL_PORT);
35
36 mdelay(10);
37
38#define PCI_CONF1_ADDRESS(bus, devfn, reg) \
39 (0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3))
40
41 outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8);
42 outl(PIIX_SPECIAL_STOP, 0xCFC);
43}
44
45EXPORT_SYMBOL(machine_power_off);
46
47void machine_halt(void)
48{
49}
50
51EXPORT_SYMBOL(machine_halt);