arch/arm/mach-stmp37xx/include/mach/entry-macro.S

   1 /*
   2  * Low-level IRQ helper macros for Freescale STMP37XX
   3  *
   4  * Embedded Alley Solutions, Inc <source@embeddedalley.com>
   5  *
   6  * Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
   7  * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
   8  */
   9
  10 /*
  11  * The code contained herein is licensed under the GNU General Public
  12  * License. You may obtain a copy of the GNU General Public License
  13  * Version 2 or later at the following locations:
  14  *
  15  * http://www.opensource.org/licenses/gpl-license.html
  16  * http://www.gnu.org/copyleft/gpl.html
  17  */
  18
  19                 .macro  disable_fiq
  20                 .endm
  21
  22                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  23
  24                 mov     \base, #0xf0000000      @ vm address of IRQ controller
  25                 ldr     \irqnr, [\base, #0x30]  @ HW_ICOLL_STAT
  26                 cmp     \irqnr, #0x3f
  27                 movne   \irqstat, #0            @ Ack this IRQ
  28                 strne   \irqstat, [\base, #0x00]@ HW_ICOLL_VECTOR
  29                 moveqs  \irqnr, #0              @ Zero flag set for no IRQ
  30
  31                 .endm
  32
  33                 .macro  get_irqnr_preamble, base, tmp
  34                 .endm
  35
  36                 .macro  arch_ret_to_user, tmp1, tmp2
  37                 .endm