ARM: mach-ebsa110: move special idle code out of line

... and hook it to arm_pm_idle.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>

1 files changed, 1 insertions, 20 deletions

diff --git a/arch/arm/mach-ebsa110/include/mach/system.h b/arch/arm/mach-ebsa110/include/mach/system.h
index 2e4af65edb6f..b4601699b3be 100644
--- a/arch/arm/mach-ebsa110/include/mach/system.h
+++ b/arch/arm/mach-ebsa110/include/mach/system.h
@@ -10,28 +10,9 @@
 #ifndef __ASM_ARCH_SYSTEM_H
 #define __ASM_ARCH_SYSTEM_H
 
-/*
- * EBSA110 idling methodology:
- *
- * We can not execute the "wait for interrupt" instruction since that
- * will stop our MCLK signal (which provides the clock for the glue
- * logic, and therefore the timer interrupt).
- *
- * Instead, we spin, polling the IRQ_STAT register for the occurrence
- * of any interrupt with core clock down to the memory clock.
- */
 static inline void arch_idle(void)
 {
-        const char *irq_stat = (char *)0xff000000;
-
-        /* disable clock switching */
-        asm volatile ("mcr p15, 0, ip, c15, c2, 2" : : : "cc");
-
-        /* wait for an interrupt to occur */
-        while (!*irq_stat);
-
-        /* enable clock switching */
-        asm volatile ("mcr p15, 0, ip, c15, c1, 2" : : : "cc");
+        cpu_do_idle();
 }
 
 #endif