release/src-rt-6.x.4708/linux/linux-2.6.36/arch/powerpc/platforms/512x/mpc5121_generic.c

   1 /*
   2  * Copyright (C) 2007,2008 Freescale Semiconductor, Inc. All rights reserved.
   3  *
   4  * Author: John Rigby, <jrigby@freescale.com>
   5  *
   6  * Description:
   7  * MPC5121 SoC setup
   8  *
   9  * This is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/of_platform.h>
  18
  19 #include <asm/machdep.h>
  20 #include <asm/ipic.h>
  21 #include <asm/prom.h>
  22 #include <asm/time.h>
  23
  24 #include "mpc512x.h"
  25
  26 /*
  27  * list of supported boards
  28  */
  29 static char *board[] __initdata = {
  30         "prt,prtlvt",
  31         NULL
  32 };
  33
  34 /*
  35  * Called very early, MMU is off, device-tree isn't unflattened
  36  */
  37 static int __init mpc5121_generic_probe(void)
  38 {
  39         unsigned long node = of_get_flat_dt_root();
  40         int i = 0;
  41
  42         while (board[i]) {
  43                 if (of_flat_dt_is_compatible(node, board[i]))
  44                         break;
  45                 i++;
  46         }
  47
  48         return board[i] != NULL;
  49 }
  50
  51 define_machine(mpc5121_generic) {
  52         .name                   = "MPC5121 generic",
  53         .probe                  = mpc5121_generic_probe,
  54         .init                   = mpc512x_init,
  55         .init_early             = mpc512x_init_diu,
  56         .setup_arch             = mpc512x_setup_diu,
  57         .init_IRQ               = mpc512x_init_IRQ,
  58         .get_irq                = ipic_get_irq,
  59         .calibrate_decr         = generic_calibrate_decr,
  60         .restart                = mpc512x_restart,
  61 };