arch/arm/mach-highbank/hotplug.c

   1 /*
   2  * Copyright 2011 Calxeda, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms and conditions of the GNU General Public License,
   6  * version 2, as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  11  * more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along with
  14  * this program.  If not, see <http://www.gnu.org/licenses/>.
  15  */
  16 #include <linux/kernel.h>
  17 #include <asm/cacheflush.h>
  18
  19 #include "core.h"
  20 #include "sysregs.h"
  21
  22 extern void secondary_startup(void);
  23
  24 /*
  25  * platform-specific code to shutdown a CPU
  26  *
  27  */
  28 void __ref highbank_cpu_die(unsigned int cpu)
  29 {
  30         highbank_set_cpu_jump(cpu, phys_to_virt(0));
  31
  32         flush_cache_louis();
  33         highbank_set_core_pwr();
  34
  35         while (1)
  36                 cpu_do_idle();
  37 }