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authorSantosh Shilimkar <santosh.shilimkar@ti.com>2010-08-02 13:18:19 +0300
committerTony Lindgren <tony@atomide.com>2010-08-02 13:18:19 +0300
commit7d35b8d09fb0cb0a89c8c265a5bfb52c2867b1d5 (patch)
tree1086c9e507b3565563bede1498487e30b7c3c1b3 /arch/arm/mach-omap2/include/mach
parent3f9eaf0984952f69cb2d0c1b0f99b95b74742094 (diff)
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 <rnayak@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/include/mach')
-rw-r--r--arch/arm/mach-omap2/include/mach/omap4-common.h7
1 files changed, 7 insertions, 0 deletions
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