arch/powerpc/platforms/85xx/p1010rdb.c

   1 /*
   2  * P1010RDB Board Setup
   3  *
   4  * Copyright 2011 Freescale Semiconductor Inc.
   5  *
   6  * This program is free software; you can redistribute  it and/or modify it
   7  * under  the terms of  the GNU General  Public License as published by the
   8  * Free Software Foundation;  either version 2 of the  License, or (at your
   9  * option) any later version.
  10  */
  11
  12 #include <linux/stddef.h>
  13 #include <linux/kernel.h>
  14 #include <linux/pci.h>
  15 #include <linux/delay.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/of_platform.h>
  18
  19 #include <asm/system.h>
  20 #include <asm/time.h>
  21 #include <asm/machdep.h>
  22 #include <asm/pci-bridge.h>
  23 #include <mm/mmu_decl.h>
  24 #include <asm/prom.h>
  25 #include <asm/udbg.h>
  26 #include <asm/mpic.h>
  27
  28 #include <sysdev/fsl_soc.h>
  29 #include <sysdev/fsl_pci.h>
  30
  31 void __init p1010_rdb_pic_init(void)
  32 {
  33         struct mpic *mpic;
  34         struct resource r;
  35         struct device_node *np;
  36
  37         np = of_find_node_by_type(NULL, "open-pic");
  38         if (np == NULL) {
  39                 printk(KERN_ERR "Could not find open-pic node\n");
  40                 return;
  41         }
  42
  43         if (of_address_to_resource(np, 0, &r)) {
  44                 printk(KERN_ERR "Failed to map mpic register space\n");
  45                 of_node_put(np);
  46                 return;
  47         }
  48
  49         mpic = mpic_alloc(np, r.start, MPIC_PRIMARY | MPIC_WANTS_RESET |
  50           MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU,
  51           0, 256, " OpenPIC  ");
  52
  53         BUG_ON(mpic == NULL);
  54         of_node_put(np);
  55
  56         mpic_init(mpic);
  57
  58 }
  59
  60
  61 /*
  62  * Setup the architecture
  63  */
  64 static void __init p1010_rdb_setup_arch(void)
  65 {
  66 #ifdef CONFIG_PCI
  67         struct device_node *np;
  68 #endif
  69
  70         if (ppc_md.progress)
  71                 ppc_md.progress("p1010_rdb_setup_arch()", 0);
  72
  73 #ifdef CONFIG_PCI
  74         for_each_node_by_type(np, "pci") {
  75                 if (of_device_is_compatible(np, "fsl,p1010-pcie"))
  76                         fsl_add_bridge(np, 0);
  77         }
  78
  79 #endif
  80
  81         printk(KERN_INFO "P1010 RDB board from Freescale Semiconductor\n");
  82 }
  83
  84 static struct of_device_id __initdata p1010rdb_ids[] = {
  85         { .type = "soc", },
  86         { .compatible = "soc", },
  87         { .compatible = "simple-bus", },
  88         {},
  89 };
  90
  91 static int __init p1010rdb_publish_devices(void)
  92 {
  93         return of_platform_bus_probe(NULL, p1010rdb_ids, NULL);
  94 }
  95 machine_device_initcall(p1010_rdb, p1010rdb_publish_devices);
  96 machine_arch_initcall(p1010_rdb, swiotlb_setup_bus_notifier);
  97
  98 /*
  99  * Called very early, device-tree isn't unflattened
 100  */
 101 static int __init p1010_rdb_probe(void)
 102 {
 103         unsigned long root = of_get_flat_dt_root();
 104
 105         if (of_flat_dt_is_compatible(root, "fsl,P1010RDB"))
 106                 return 1;
 107         return 0;
 108 }
 109
 110 define_machine(p1010_rdb) {
 111         .name                   = "P1010 RDB",
 112         .probe                  = p1010_rdb_probe,
 113         .setup_arch             = p1010_rdb_setup_arch,
 114         .init_IRQ               = p1010_rdb_pic_init,
 115 #ifdef CONFIG_PCI
 116         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 117 #endif
 118         .get_irq                = mpic_get_irq,
 119         .restart                = fsl_rstcr_restart,
 120         .calibrate_decr         = generic_calibrate_decr,
 121         .progress               = udbg_progress,
 122 };