arch/powerpc/kernel/cpu_setup_pa6t.S

   1 /*
   2  * Copyright (C) 2006-2007 PA Semi, Inc
   3  *
   4  * Maintained by: Olof Johansson <olof@lixom.net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  18  *
  19  */
  20
  21 #include <asm/processor.h>
  22 #include <asm/page.h>
  23 #include <asm/cputable.h>
  24 #include <asm/ppc_asm.h>
  25 #include <asm/asm-offsets.h>
  26 #include <asm/cache.h>
  27
  28 /* Right now, restore and setup are the same thing */
  29 _GLOBAL(__restore_cpu_pa6t)
  30 _GLOBAL(__setup_cpu_pa6t)
  31         /* Do nothing if not running in HV mode */
  32         mfmsr   r0
  33         rldicl. r0,r0,4,63
  34         beqlr
  35
  36         mfspr   r0,SPRN_HID5
  37         ori     r0,r0,0x38
  38         mtspr   SPRN_HID5,r0
  39
  40         mfspr   r0,SPRN_LPCR
  41         ori     r0,r0,0x7000
  42         mtspr   SPRN_LPCR,r0
  43
  44         blr