arch/arm/mach-mvebu/hotplug.c

   1 /*
   2  * Symmetric Multi Processing (SMP) support for Armada XP
   3  *
   4  * Copyright (C) 2012 Marvell
   5  *
   6  * Lior Amsalem <alior@marvell.com>
   7  * Gregory CLEMENT <gregory.clement@free-electrons.com>
   8  * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
   9  *
  10  * This file is licensed under the terms of the GNU General Public
  11  * License version 2.  This program is licensed "as is" without any
  12  * warranty of any kind, whether express or implied.
  13  */
  14 #include <linux/kernel.h>
  15 #include <linux/errno.h>
  16 #include <linux/smp.h>
  17 #include <asm/proc-fns.h>
  18 #include "common.h"
  19
  20 /*
  21  * platform-specific code to shutdown a CPU
  22  *
  23  * Called with IRQs disabled
  24  */
  25 void __ref armada_xp_cpu_die(unsigned int cpu)
  26 {
  27         cpu_do_idle();
  28
  29         /* We should never return from idle */
  30         panic("mvebu: cpu %d unexpectedly exit from shutdown\n", cpu);
  31 }