include/asm-arm/arch-netx/entry-macro.S

   1 /*
   2  * include/asm-arm/arch-netx/entry-macro.S
   3  *
   4  * Low-level IRQ helper macros for Hilscher netX based platforms
   5  *
   6  * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2
  10  * as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21 #include <asm/arch/hardware.h>
  22
  23                 .macro  disable_fiq
  24                 .endm
  25
  26                 .macro  get_irqnr_preamble, base, tmp
  27                 .endm
  28
  29                 .macro  arch_ret_to_user, tmp1, tmp2
  30                 .endm
  31
  32                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
  33                 mov     \base, #io_p2v(0x00100000)
  34                 add     \base, \base, #0x000ff000
  35
  36                 ldr     \irqstat, [\base, #0]
  37                 clz     \irqnr, \irqstat
  38                 rsb     \irqnr, \irqnr, #31
  39                 cmp     \irqstat, #0
  40                 .endm
  41