arch/powerpc/platforms/512x/mpc5121_ads.c

   1 /*
   2  * Copyright (C) 2007, 2008 Freescale Semiconductor, Inc. All rights reserved.
   3  *
   4  * Author: John Rigby, <jrigby@freescale.com>, Thur Mar 29 2007
   5  *
   6  * Description:
   7  * MPC5121 ADS board 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/io.h>
  18 #include <linux/of_platform.h>
  19
  20 #include <asm/machdep.h>
  21 #include <asm/ipic.h>
  22 #include <asm/prom.h>
  23 #include <asm/time.h>
  24
  25 #include <sysdev/fsl_pci.h>
  26
  27 #include "mpc512x.h"
  28 #include "mpc5121_ads.h"
  29
  30 static void __init mpc5121_ads_setup_arch(void)
  31 {
  32 #ifdef CONFIG_PCI
  33         struct device_node *np;
  34 #endif
  35         printk(KERN_INFO "MPC5121 ADS board from Freescale Semiconductor\n");
  36         /*
  37          * cpld regs are needed early
  38          */
  39         mpc5121_ads_cpld_map();
  40
  41 #ifdef CONFIG_PCI
  42         for_each_compatible_node(np, "pci", "fsl,mpc5121-pci")
  43                 mpc83xx_add_bridge(np);
  44 #endif
  45 }
  46
  47 static void __init mpc5121_ads_init_IRQ(void)
  48 {
  49         mpc512x_init_IRQ();
  50         mpc5121_ads_cpld_pic_init();
  51 }
  52
  53 /*
  54  * Called very early, MMU is off, device-tree isn't unflattened
  55  */
  56 static int __init mpc5121_ads_probe(void)
  57 {
  58         unsigned long root = of_get_flat_dt_root();
  59
  60         return of_flat_dt_is_compatible(root, "fsl,mpc5121ads");
  61 }
  62
  63 define_machine(mpc5121_ads) {
  64         .name                   = "MPC5121 ADS",
  65         .probe                  = mpc5121_ads_probe,
  66         .setup_arch             = mpc5121_ads_setup_arch,
  67         .init                   = mpc512x_declare_of_platform_devices,
  68         .init_IRQ               = mpc5121_ads_init_IRQ,
  69         .get_irq                = ipic_get_irq,
  70         .calibrate_decr         = generic_calibrate_decr,
  71 };