arch/powerpc/platforms/85xx/mpc85xx_rdb.c

   1 /*
   2  * MPC85xx RDB Board Setup
   3  *
   4  * Copyright 2009 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/kdev_t.h>
  16 #include <linux/delay.h>
  17 #include <linux/seq_file.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/of_platform.h>
  20
  21 #include <asm/system.h>
  22 #include <asm/time.h>
  23 #include <asm/machdep.h>
  24 #include <asm/pci-bridge.h>
  25 #include <mm/mmu_decl.h>
  26 #include <asm/prom.h>
  27 #include <asm/udbg.h>
  28 #include <asm/mpic.h>
  29
  30 #include <sysdev/fsl_soc.h>
  31 #include <sysdev/fsl_pci.h>
  32 #include "smp.h"
  33
  34 #include "mpc85xx.h"
  35
  36 #undef DEBUG
  37
  38 #ifdef DEBUG
  39 #define DBG(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args)
  40 #else
  41 #define DBG(fmt, args...)
  42 #endif
  43
  44
  45 void __init mpc85xx_rdb_pic_init(void)
  46 {
  47         struct mpic *mpic;
  48         unsigned long root = of_get_flat_dt_root();
  49
  50         if (of_flat_dt_is_compatible(root, "fsl,MPC85XXRDB-CAMP")) {
  51                 mpic = mpic_alloc(NULL, 0,
  52                         MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
  53                         MPIC_SINGLE_DEST_CPU,
  54                         0, 256, " OpenPIC  ");
  55         } else {
  56                 mpic = mpic_alloc(NULL, 0,
  57                   MPIC_WANTS_RESET |
  58                   MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
  59                   MPIC_SINGLE_DEST_CPU,
  60                   0, 256, " OpenPIC  ");
  61         }
  62
  63         BUG_ON(mpic == NULL);
  64         mpic_init(mpic);
  65 }
  66
  67 /*
  68  * Setup the architecture
  69  */
  70 static void __init mpc85xx_rdb_setup_arch(void)
  71 {
  72 #ifdef CONFIG_PCI
  73         struct device_node *np;
  74 #endif
  75
  76         if (ppc_md.progress)
  77                 ppc_md.progress("mpc85xx_rdb_setup_arch()", 0);
  78
  79 #ifdef CONFIG_PCI
  80         for_each_node_by_type(np, "pci") {
  81                 if (of_device_is_compatible(np, "fsl,mpc8548-pcie"))
  82                         fsl_add_bridge(np, 0);
  83         }
  84
  85 #endif
  86
  87         mpc85xx_smp_init();
  88         printk(KERN_INFO "MPC85xx RDB board from Freescale Semiconductor\n");
  89 }
  90
  91 machine_device_initcall(p2020_rdb, mpc85xx_common_publish_devices);
  92 machine_device_initcall(p1020_rdb, mpc85xx_common_publish_devices);
  93
  94 /*
  95  * Called very early, device-tree isn't unflattened
  96  */
  97 static int __init p2020_rdb_probe(void)
  98 {
  99         unsigned long root = of_get_flat_dt_root();
 100
 101         if (of_flat_dt_is_compatible(root, "fsl,P2020RDB"))
 102                 return 1;
 103         return 0;
 104 }
 105
 106 static int __init p1020_rdb_probe(void)
 107 {
 108         unsigned long root = of_get_flat_dt_root();
 109
 110         if (of_flat_dt_is_compatible(root, "fsl,P1020RDB"))
 111                 return 1;
 112         return 0;
 113 }
 114
 115 define_machine(p2020_rdb) {
 116         .name                   = "P2020 RDB",
 117         .probe                  = p2020_rdb_probe,
 118         .setup_arch             = mpc85xx_rdb_setup_arch,
 119         .init_IRQ               = mpc85xx_rdb_pic_init,
 120 #ifdef CONFIG_PCI
 121         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 122 #endif
 123         .get_irq                = mpic_get_irq,
 124         .restart                = fsl_rstcr_restart,
 125         .calibrate_decr         = generic_calibrate_decr,
 126         .progress               = udbg_progress,
 127 };
 128
 129 define_machine(p1020_rdb) {
 130         .name                   = "P1020 RDB",
 131         .probe                  = p1020_rdb_probe,
 132         .setup_arch             = mpc85xx_rdb_setup_arch,
 133         .init_IRQ               = mpc85xx_rdb_pic_init,
 134 #ifdef CONFIG_PCI
 135         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
 136 #endif
 137         .get_irq                = mpic_get_irq,
 138         .restart                = fsl_rstcr_restart,
 139         .calibrate_decr         = generic_calibrate_decr,
 140         .progress               = udbg_progress,
 141 };