err.no Git - linux-2.6/blob - arch/powerpc/platforms/83xx/mpc837x_mds.c

   1 /*
   2  * arch/powerpc/platforms/83xx/mpc837x_mds.c
   3  *
   4  * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
   5  *
   6  * MPC837x MDS board specific routines
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation;  either version 2 of the License, or (at your
  11  * option) any later version.
  12  */
  13
  14 #include <linux/pci.h>
  15 #include <linux/of.h>
  16 #include <linux/of_platform.h>
  17
  18 #include <asm/time.h>
  19 #include <asm/ipic.h>
  20 #include <asm/udbg.h>
  21 #include <asm/prom.h>
  22
  23 #include "mpc83xx.h"
  24
  25 #ifndef CONFIG_PCI
  26 unsigned long isa_io_base = 0;
  27 unsigned long isa_mem_base = 0;
  28 #endif
  29
  30 /* ************************************************************************
  31  *
  32  * Setup the architecture
  33  *
  34  */
  35 static void __init mpc837x_mds_setup_arch(void)
  36 {
  37 #ifdef CONFIG_PCI
  38         struct device_node *np;
  39 #endif
  40
  41         if (ppc_md.progress)
  42                 ppc_md.progress("mpc837x_mds_setup_arch()", 0);
  43
  44 #ifdef CONFIG_PCI
  45         for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
  46                 mpc83xx_add_bridge(np);
  47 #endif
  48 }
  49
  50 static struct of_device_id mpc837x_ids[] = {
  51         { .type = "soc", },
  52         { .compatible = "soc", },
  53         {},
  54 };
  55
  56 static int __init mpc837x_declare_of_platform_devices(void)
  57 {
  58         if (!machine_is(mpc837x_mds))
  59                 return 0;
  60
  61         /* Publish of_device */
  62         of_platform_bus_probe(NULL, mpc837x_ids, NULL);
  63
  64         return 0;
  65 }
  66 device_initcall(mpc837x_declare_of_platform_devices);
  67
  68 static void __init mpc837x_mds_init_IRQ(void)
  69 {
  70         struct device_node *np;
  71
  72         np = of_find_compatible_node(NULL, NULL, "fsl,ipic");
  73         if (!np)
  74                 return;
  75
  76         ipic_init(np, 0);
  77
  78         /* Initialize the default interrupt mapping priorities,
  79          * in case the boot rom changed something on us.
  80          */
  81         ipic_set_default_priority();
  82 }
  83
  84 /*
  85  * Called very early, MMU is off, device-tree isn't unflattened
  86  */
  87 static int __init mpc837x_mds_probe(void)
  88 {
  89         unsigned long root = of_get_flat_dt_root();
  90
  91         return of_flat_dt_is_compatible(root, "fsl,mpc837xmds");
  92 }
  93
  94 define_machine(mpc837x_mds) {
  95         .name                   = "MPC837x MDS",
  96         .probe                  = mpc837x_mds_probe,
  97         .setup_arch             = mpc837x_mds_setup_arch,
  98         .init_IRQ               = mpc837x_mds_init_IRQ,
  99         .get_irq                = ipic_get_irq,
 100         .restart                = mpc83xx_restart,
 101         .time_init              = mpc83xx_time_init,
 102         .calibrate_decr         = generic_calibrate_decr,
 103         .progress               = udbg_progress,
 104 };