From 7d35b8d09fb0cb0a89c8c265a5bfb52c2867b1d5 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Mon, 2 Aug 2010 13:18:19 +0300 Subject: omap4: hotplug: Add basic CPU hotplug support This patch adds cpu hotplug support for OMAP4430. Only CPU inactive state is supported as a low power state in the basic hot-plug support Signed-off-by: Rajendra Nayak Signed-off-by: Santosh Shilimkar Cc: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/include/mach/omap4-common.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/arm/mach-omap2/include') diff --git a/arch/arm/mach-omap2/include/mach/omap4-common.h b/arch/arm/mach-omap2/include/mach/omap4-common.h index 423af3a6dd3..2744dfee1ff 100644 --- a/arch/arm/mach-omap2/include/mach/omap4-common.h +++ b/arch/arm/mach-omap2/include/mach/omap4-common.h @@ -13,6 +13,13 @@ #ifndef OMAP_ARCH_OMAP4_COMMON_H #define OMAP_ARCH_OMAP4_COMMON_H +/* + * wfi used in low power code. Directly opcode is used instead + * of instruction to avoid mulit-omap build break + */ +#define do_wfi() \ + __asm__ __volatile__ (".word 0xe320f003" : : : "memory") + #ifdef CONFIG_CACHE_L2X0 extern void __iomem *l2cache_base; #endif -- cgit v1.2.3