arch/arm/cpu/tegra-common/lowlevel_init.S

   1 /*
   2  * SoC-specific setup info
   3  *
   4  * (C) Copyright 2010,2011
   5  * NVIDIA Corporation <www.nvidia.com>
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #include <config.h>
  27 #include <version.h>
  28 #include <linux/linkage.h>
  29
  30         .align  5
  31 ENTRY(reset_cpu)
  32         ldr     r1, rstctl                      @ get addr for global reset
  33                                                 @ reg
  34         ldr     r3, [r1]
  35         orr     r3, r3, #0x10
  36         str     r3, [r1]                        @ force reset
  37         mov     r0, r0
  38 _loop_forever:
  39         b       _loop_forever
  40 rstctl:
  41         .word   PRM_RSTCTRL
  42 ENDPROC(reset_cpu)