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   1 /*
   2  * arch/powerpc/platforms/83xx/mpc837x_rdb.c
   3  *
   4  * Copyright (C) 2007 Freescale Semicondutor, Inc. All rights reserved.
   5  *
   6  * MPC837x RDB 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_platform.h>
  16
  17 #include <asm/time.h>
  18 #include <asm/ipic.h>
  19 #include <asm/udbg.h>
  20 #include <sysdev/fsl_pci.h>
  21
  22 #include "mpc83xx.h"
  23
  24 /* ************************************************************************
  25  *
  26  * Setup the architecture
  27  *
  28  */
  29 static void __init mpc837x_rdb_setup_arch(void)
  30 {
  31 #ifdef CONFIG_PCI
  32         struct device_node *np;
  33 #endif
  34
  35         if (ppc_md.progress)
  36                 ppc_md.progress("mpc837x_rdb_setup_arch()", 0);
  37
  38 #ifdef CONFIG_PCI
  39         for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
  40                 mpc83xx_add_bridge(np);
  41         for_each_compatible_node(np, "pci", "fsl,mpc8314-pcie")
  42                 mpc83xx_add_bridge(np);
  43 #endif
  44         mpc837x_usb_cfg();
  45 }
  46
  47 static struct of_device_id mpc837x_ids[] = {
  48         { .type = "soc", },
  49         { .compatible = "soc", },
  50         { .compatible = "simple-bus", },
  51         { .compatible = "gianfar", },
  52         {},
  53 };
  54
  55 static int __init mpc837x_declare_of_platform_devices(void)
  56 {
  57         /* Publish of_device */
  58         of_platform_bus_probe(NULL, mpc837x_ids, NULL);
  59
  60         return 0;
  61 }
  62 machine_device_initcall(mpc837x_rdb, mpc837x_declare_of_platform_devices);
  63
  64 static void __init mpc837x_rdb_init_IRQ(void)
  65 {
  66         struct device_node *np;
  67
  68         np = of_find_compatible_node(NULL, NULL, "fsl,ipic");
  69         if (!np)
  70                 return;
  71
  72         ipic_init(np, 0);
  73
  74         /* Initialize the default interrupt mapping priorities,
  75          * in case the boot rom changed something on us.
  76          */
  77         ipic_set_default_priority();
  78 }
  79
  80 /*
  81  * Called very early, MMU is off, device-tree isn't unflattened
  82  */
  83 static int __init mpc837x_rdb_probe(void)
  84 {
  85         unsigned long root = of_get_flat_dt_root();
  86
  87         return of_flat_dt_is_compatible(root, "fsl,mpc8377rdb") ||
  88                of_flat_dt_is_compatible(root, "fsl,mpc8378rdb") ||
  89                of_flat_dt_is_compatible(root, "fsl,mpc8379rdb");
  90 }
  91
  92 define_machine(mpc837x_rdb) {
  93         .name                   = "MPC837x RDB",
  94         .probe                  = mpc837x_rdb_probe,
  95         .setup_arch             = mpc837x_rdb_setup_arch,
  96         .init_IRQ               = mpc837x_rdb_init_IRQ,
  97         .get_irq                = ipic_get_irq,
  98         .restart                = mpc83xx_restart,
  99         .time_init              = mpc83xx_time_init,
 100         .calibrate_decr         = generic_calibrate_decr,
 101         .progress               = udbg_progress,
 102 };