arch/arm/mach-imx/headsmp.S

   1 /*
   2  * Copyright 2011 Freescale Semiconductor, Inc.
   3  * Copyright 2011 Linaro Ltd.
   4  *
   5  * The code contained herein is licensed under the GNU General Public
   6  * License. You may obtain a copy of the GNU General Public License
   7  * Version 2 or later at the following locations:
   8  *
   9  * http://www.opensource.org/licenses/gpl-license.html
  10  * http://www.gnu.org/copyleft/gpl.html
  11  */
  12
  13 #include <linux/linkage.h>
  14 #include <linux/init.h>
  15 #include <asm/assembler.h>
  16
  17 diag_reg_offset:
  18         .word   g_diag_reg - .
  19
  20         .macro  set_diag_reg
  21         adr     r0, diag_reg_offset
  22         ldr     r1, [r0]
  23         add     r1, r1, r0              @ r1 = physical &g_diag_reg
  24         ldr     r0, [r1]
  25         mcr     p15, 0, r0, c15, c0, 1  @ write diagnostic register
  26         .endm
  27
  28 ENTRY(v7_secondary_startup)
  29 ARM_BE8(setend be)                      @ go BE8 if entered LE
  30         set_diag_reg
  31         b       secondary_startup
  32 ENDPROC(v7_secondary_startup)