66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/*
|
|
* Cobalt Reset operations
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 1995, 1996, 1997 by Ralf Baechle
|
|
* Copyright (C) 2001 by Liam Davies (ldavies@agile.tv)
|
|
*/
|
|
#include <linux/sched.h>
|
|
#include <linux/mm.h>
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/io.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/reboot.h>
|
|
#include <asm/system.h>
|
|
#include <asm/mipsregs.h>
|
|
#include <asm/mach-cobalt/cobalt.h>
|
|
|
|
void cobalt_machine_halt(void)
|
|
{
|
|
int state, last, diff;
|
|
unsigned long mark;
|
|
|
|
/*
|
|
* turn off bar on Qube, flash power off LED on RaQ (0.5Hz)
|
|
*
|
|
* restart if ENTER and SELECT are pressed
|
|
*/
|
|
|
|
last = COBALT_KEY_PORT;
|
|
|
|
for (state = 0;;) {
|
|
|
|
state ^= COBALT_LED_POWER_OFF;
|
|
COBALT_LED_PORT = state;
|
|
|
|
diff = COBALT_KEY_PORT ^ last;
|
|
last ^= diff;
|
|
|
|
if((diff & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)) && !(~last & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)))
|
|
COBALT_LED_PORT = COBALT_LED_RESET;
|
|
|
|
for (mark = jiffies; jiffies - mark < HZ;)
|
|
;
|
|
}
|
|
}
|
|
|
|
void cobalt_machine_restart(char *command)
|
|
{
|
|
COBALT_LED_PORT = COBALT_LED_RESET;
|
|
|
|
/* we should never get here */
|
|
cobalt_machine_halt();
|
|
}
|
|
|
|
/*
|
|
* This triggers the luser mode device driver for the power switch ;-)
|
|
*/
|
|
void cobalt_machine_power_off(void)
|
|
{
|
|
printk("You can switch the machine off now.\n");
|
|
cobalt_machine_halt();
|
|
}
|