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authorSantosh Shilimkar <santosh.shilimkar@ti.com>2010-08-02 14:18:19 +0400
committerTony Lindgren <tony@atomide.com>2010-08-02 14:18:19 +0400
commit7d35b8d09fb0cb0a89c8c265a5bfb52c2867b1d5 (patch)
tree1086c9e507b3565563bede1498487e30b7c3c1b3 /arch/arm/mach-omap2/omap-smp.c
parent3f9eaf0984952f69cb2d0c1b0f99b95b74742094 (diff)
downloadlinux-7d35b8d09fb0cb0a89c8c265a5bfb52c2867b1d5.tar.xz
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/omap-smp.c')
-rw-r--r--arch/arm/mach-omap2/omap-smp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index 1cf52313759e..af3c20c8d3f9 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -73,9 +73,10 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
* the AuxCoreBoot1 register is updated with cpu state
* A barrier is added to ensure that write buffer is drained
*/
- omap_modify_auxcoreboot0(0x200, 0x0);
+ omap_modify_auxcoreboot0(0x200, 0xfffffdff);
flush_cache_all();
smp_wmb();
+ smp_cross_call(cpumask_of(cpu));
/*
* Now the secondary core is starting up let it run its