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--- a/arch/arm/mach-cns3xxx/Makefile
+++ b/arch/arm/mach-cns3xxx/Makefile
@@ -1,3 +1,5 @@
obj-$(CONFIG_ARCH_CNS3XXX) += core.o pm.o devices.o
obj-$(CONFIG_PCI) += pcie.o
obj-$(CONFIG_MACH_CNS3420VB) += cns3420vb.o
+obj-$(CONFIG_SMP) += platsmp.o headsmp.o
+obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -367,6 +367,7 @@ config ARCH_CNS3XXX
select PCI_DOMAINS if PCI
select CLKDEV_LOOKUP
select CPU_CACHE_FORCE_MULTI
+ select HAVE_SMP
help
Support for Cavium Networks CNS3XXX platform.
--- a/arch/arm/mach-cns3xxx/core.h
+++ b/arch/arm/mach-cns3xxx/core.h
@@ -11,6 +11,7 @@
#ifndef __CNS3XXX_CORE_H
#define __CNS3XXX_CORE_H
+extern struct smp_operations cns3xxx_smp_ops;
extern struct sys_timer cns3xxx_timer;
#ifdef CONFIG_CACHE_L2X0
--- a/arch/arm/mach-cns3xxx/laguna.c
+++ b/arch/arm/mach-cns3xxx/laguna.c
@@ -946,6 +946,7 @@ static int __init laguna_model_setup(voi
late_initcall(laguna_model_setup);
MACHINE_START(GW2388, "Gateworks Corporation Laguna Platform")
+ .smp = smp_ops(cns3xxx_smp_ops),
.atag_offset = 0x100,
.map_io = laguna_map_io,
.init_irq = cns3xxx_init_irq,
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