target/linux/adm5120-2.6/files/arch/mips/pci/pci-adm5120.c

   1 /*
   2  *  $Id$
   3  *
   4  *  ADM5120 PCI Host Controller driver
   5  *
   6  *  Copyright (C) ADMtek Incorporated.
   7  *  Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
   8  *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
   9  *  Copyright (C) 2007 OpenWrt.org
  10  *
  11  *  This program is free software; you can redistribute it and/or
  12  *  modify it under the terms of the GNU General Public License
  13  *  as published by the Free Software Foundation; either version 2
  14  *  of the License, or (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, write to the
  23  *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24  *  Boston, MA  02110-1301, USA.
  25  *
  26  */
  27 #include <linux/types.h>
  28 #include <linux/pci.h>
  29 #include <linux/kernel.h>
  30 #include <linux/init.h>
  31
  32 #include <asm/mach-adm5120/adm5120_info.h>
  33 #include <asm/mach-adm5120/adm5120_defs.h>
  34 #include <asm/mach-adm5120/adm5120_irq.h>
  35
  36 extern struct pci_ops adm5120_pci_ops;
  37
  38 static struct resource pci_io_resource = {
  39         .name = "ADM5120 PCI I/O",
  40         .start = ADM5120_PCIIO_BASE,
  41         .end = ADM5120_PCICFG_ADDR-1,
  42         .flags = IORESOURCE_IO
  43 };
  44
  45 static struct resource pci_mem_resource = {
  46         .name = "ADM5120 PCI MEM",
  47         .start = ADM5120_PCIMEM_BASE,
  48         .end = ADM5120_PCIIO_BASE-1,
  49         .flags = IORESOURCE_MEM
  50 };
  51
  52 static struct pci_controller adm5120_controller = {
  53         .pci_ops        = &adm5120_pci_ops,
  54         .io_resource    = &pci_io_resource,
  55         .mem_resource   = &pci_mem_resource,
  56 };
  57
  58 static int __init adm5120_pci_setup(void)
  59 {
  60         int pci_bios;
  61
  62         pci_bios = adm5120_has_pci();
  63
  64         printk("adm5120: system has %sPCI BIOS\n", pci_bios ? "" : "no ");
  65         if (pci_bios == 0)
  66                 return -1;
  67
  68         /* Avoid ISA compat ranges.  */
  69         PCIBIOS_MIN_IO = 0x00000000;
  70         PCIBIOS_MIN_MEM = 0x00000000;
  71
  72         /* Set I/O resource limits.  */
  73         ioport_resource.end = 0x1fffffff;
  74         iomem_resource.end = 0xffffffff;
  75
  76         register_pci_controller(&adm5120_controller);
  77         return 0;
  78 }
  79
  80 arch_initcall(adm5120_pci_setup);