diff options
| author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2011-08-02 12:52:48 -0400 |
|---|---|---|
| committer | Nicolas Pitre <nico@fluxnic.net> | 2012-01-20 18:55:11 -0500 |
| commit | 1b7f72fc395d3d2b498fee5ecfb9e46497f55cdd (patch) | |
| tree | 8fefa3bde9652f8acb8bda177f3b38149d53a0be /arch/arm/mach-ebsa110/include/mach | |
| parent | 71e256c54d67f55536bae184bb579c682714a95a (diff) | |
| download | lwn-1b7f72fc395d3d2b498fee5ecfb9e46497f55cdd.tar.gz lwn-1b7f72fc395d3d2b498fee5ecfb9e46497f55cdd.zip | |
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>
Diffstat (limited to 'arch/arm/mach-ebsa110/include/mach')
| -rw-r--r-- | arch/arm/mach-ebsa110/include/mach/system.h | 21 |
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 |