X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Favr32%2Fkernel%2Fprocess.c;h=4f8d2d4747406d0aa4210d50a40424324adcc6d8;hb=19b7ce8bad718a2850ea19aeb7383f1728596c24;hp=317dc50945f231896ca079f382eebbfe67201cb4;hpb=c730f5b621afa33e9f4939da9078669162ebff4e;p=linux-2.6

diff --git a/arch/avr32/kernel/process.c b/arch/avr32/kernel/process.c
index 317dc50945..4f8d2d4747 100644
--- a/arch/avr32/kernel/process.c
+++ b/arch/avr32/kernel/process.c
@@ -19,6 +19,8 @@
 void (*pm_power_off)(void) = NULL;
 EXPORT_SYMBOL(pm_power_off);
 
+extern void cpu_idle_sleep(void);
+
 /*
  * This file handles the architecture-dependent parts of process handling..
  */
@@ -27,9 +29,8 @@ void cpu_idle(void)
 {
 	/* endless idle loop with no priority at all */
 	while (1) {
-		/* TODO: Enter sleep mode */
 		while (!need_resched())
-			cpu_relax();
+			cpu_idle_sleep();
 		preempt_enable_no_resched();
 		schedule();
 		preempt_disable();
@@ -38,6 +39,13 @@ void cpu_idle(void)
 
 void machine_halt(void)
 {
+	/*
+	 * Enter Stop mode. The 32 kHz oscillator will keep running so
+	 * the RTC will keep the time properly and the system will
+	 * boot quickly.
+	 */
+	asm volatile("sleep 3\n\t"
+		     "sub pc, -2");
 }
 
 void machine_power_off(void)