From 8aa2da872a492a2196397603ed756a4c48677122 Mon Sep 17 00:00:00 2001 From: Harry Fearnhamm Date: Mon, 1 Dec 2008 14:54:56 +0000 Subject: RealView: Use flush_cache_all() rather than MCR in cpu_enter_lowpower() The MCR for flushing the whole D cache is undefined on ARMv7 CPUs. Signed-off-by: Harry Fearnhamm Signed-off-by: Catalin Marinas --- arch/arm/mach-realview/hotplug.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-realview/hotplug.c') diff --git a/arch/arm/mach-realview/hotplug.c b/arch/arm/mach-realview/hotplug.c index 09748cbcd10e..be048e3e8799 100644 --- a/arch/arm/mach-realview/hotplug.c +++ b/arch/arm/mach-realview/hotplug.c @@ -13,6 +13,8 @@ #include #include +#include + extern volatile int pen_release; static DECLARE_COMPLETION(cpu_killed); @@ -21,7 +23,8 @@ static inline void cpu_enter_lowpower(void) { unsigned int v; - asm volatile( "mcr p15, 0, %1, c7, c14, 0\n" + flush_cache_all(); + asm volatile( " mcr p15, 0, %1, c7, c5, 0\n" " mcr p15, 0, %1, c7, c10, 4\n" /* -- cgit v1.2.3