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--- a/arch/arm/mach-cns3xxx/Makefile
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+++ b/arch/arm/mach-cns3xxx/Makefile
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@@ -1,3 +1,5 @@
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obj-$(CONFIG_ARCH_CNS3XXX) += core.o pm.o devices.o
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obj-$(CONFIG_PCI) += pcie.o
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obj-$(CONFIG_MACH_CNS3420VB) += cns3420vb.o
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+obj-$(CONFIG_SMP) += platsmp.o headsmp.o
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+obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
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--- a/arch/arm/Kconfig
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+++ b/arch/arm/Kconfig
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@@ -367,6 +367,7 @@ config ARCH_CNS3XXX
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select PCI_DOMAINS if PCI
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select CLKDEV_LOOKUP
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select CPU_CACHE_FORCE_MULTI
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+ select HAVE_SMP
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help
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Support for Cavium Networks CNS3XXX platform.
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--- a/arch/arm/mach-cns3xxx/core.h
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+++ b/arch/arm/mach-cns3xxx/core.h
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@@ -11,6 +11,7 @@
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#ifndef __CNS3XXX_CORE_H
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#define __CNS3XXX_CORE_H
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+extern struct smp_operations cns3xxx_smp_ops;
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extern struct sys_timer cns3xxx_timer;
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#ifdef CONFIG_CACHE_L2X0
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--- a/arch/arm/mach-cns3xxx/laguna.c
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+++ b/arch/arm/mach-cns3xxx/laguna.c
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@@ -989,6 +989,7 @@ static int __init laguna_model_setup(voi
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late_initcall(laguna_model_setup);
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MACHINE_START(GW2388, "Gateworks Corporation Laguna Platform")
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+ .smp = smp_ops(cns3xxx_smp_ops),
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.atag_offset = 0x100,
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.map_io = laguna_map_io,
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.init_irq = cns3xxx_init_irq,
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