release/src-rt-6.x.4708/linux/linux-2.6.36/arch/powerpc/platforms/85xx/p4080_ds.c

   1 /*
   2  * P4080 DS Setup
   3  *
   4  * Maintained by Kumar Gala (see MAINTAINERS for contact information)
   5  *
   6  * Copyright 2009 Freescale Semiconductor Inc.
   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/kernel.h>
  15 #include <linux/pci.h>
  16 #include <linux/kdev_t.h>
  17 #include <linux/delay.h>
  18 #include <linux/interrupt.h>
  19
  20 #include <asm/system.h>
  21 #include <asm/time.h>
  22 #include <asm/machdep.h>
  23 #include <asm/pci-bridge.h>
  24 #include <mm/mmu_decl.h>
  25 #include <asm/prom.h>
  26 #include <asm/udbg.h>
  27 #include <asm/mpic.h>
  28
  29 #include <linux/of_platform.h>
  30 #include <sysdev/fsl_soc.h>
  31 #include <sysdev/fsl_pci.h>
  32
  33 #include "corenet_ds.h"
  34
  35 #ifdef CONFIG_PCI
  36 static int primary_phb_addr;
  37 #endif
  38
  39 /*
  40  * Called very early, device-tree isn't unflattened
  41  */
  42 static int __init p4080_ds_probe(void)
  43 {
  44         unsigned long root = of_get_flat_dt_root();
  45
  46         if (of_flat_dt_is_compatible(root, "fsl,P4080DS")) {
  47 #ifdef CONFIG_PCI
  48                 /* treat PCIe1 as primary,
  49                  * shouldn't matter as we have no ISA on the board
  50                  */
  51                 primary_phb_addr = 0x0000;
  52 #endif
  53                 return 1;
  54         } else {
  55                 return 0;
  56         }
  57 }
  58
  59 define_machine(p4080_ds) {
  60         .name                   = "P4080 DS",
  61         .probe                  = p4080_ds_probe,
  62         .setup_arch             = corenet_ds_setup_arch,
  63         .init_IRQ               = corenet_ds_pic_init,
  64 #ifdef CONFIG_PCI
  65         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
  66 #endif
  67         .get_irq                = mpic_get_coreint_irq,
  68         .restart                = fsl_rstcr_restart,
  69         .calibrate_decr         = generic_calibrate_decr,
  70         .progress               = udbg_progress,
  71 };
  72
  73 machine_device_initcall(p4080_ds, corenet_ds_publish_devices);
  74 machine_arch_initcall(p4080_ds, swiotlb_setup_bus_notifier);