* Copyright (C) 1995, 1996, 1997 by Ralf Baechle
* Copyright (C) 2001 by Liam Davies (ldavies@agile.tv)
*/
-#include <linux/jiffies.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/leds.h>
-#include <asm/io.h>
-#include <asm/reboot.h>
+#include <asm/idle.h>
+#include <asm/processor.h>
#include <cobalt.h>
-void cobalt_machine_halt(void)
+#define RESET_PORT ((void __iomem *)CKSEG1ADDR(0x1c000000))
+#define RESET 0x0f
+
+DEFINE_LED_TRIGGER(power_off_led_trigger);
+
+static int __init ledtrig_power_off_init(void)
{
- int state, last, diff;
- unsigned long mark;
+ led_trigger_register_simple("power-off", &power_off_led_trigger);
+ return 0;
+}
+device_initcall(ledtrig_power_off_init);
+void cobalt_machine_halt(void)
+{
/*
- * turn off bar on Qube, flash power off LED on RaQ (0.5Hz)
- *
- * restart if ENTER and SELECT are pressed
+ * turn on power off LED on RaQ
*/
+ led_trigger_event(power_off_led_trigger, LED_FULL);
- 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;)
- ;
+ local_irq_disable();
+ while (1) {
+ if (cpu_wait)
+ cpu_wait();
}
}
void cobalt_machine_restart(char *command)
{
- COBALT_LED_PORT = COBALT_LED_RESET;
+ writeb(RESET, RESET_PORT);
/* 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();
-}