arch/mips/pci/pci-lasat.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 2000, 2001, 04 Keith M Wesolowski
   7  */
   8 #include <linux/kernel.h>
   9 #include <linux/init.h>
  10 #include <linux/interrupt.h>
  11 #include <linux/pci.h>
  12 #include <linux/types.h>
  13 #include <linux/interrupt.h>
  14 #include <linux/pci.h>
  15 #include <linux/delay.h>
  16 #include <asm/bootinfo.h>
  17
  18 extern struct pci_ops nile4_pci_ops;
  19 extern struct pci_ops gt64120_pci_ops;
  20 static struct resource lasat_pci_mem_resource = {
  21         .name   = "LASAT PCI MEM",
  22         .start  = 0x18000000,
  23         .end    = 0x19FFFFFF,
  24         .flags  = IORESOURCE_MEM,
  25 };
  26
  27 static struct resource lasat_pci_io_resource = {
  28         .name   = "LASAT PCI IO",
  29         .start  = 0x1a000000,
  30         .end    = 0x1bFFFFFF,
  31         .flags  = IORESOURCE_IO,
  32 };
  33
  34 static struct pci_controller lasat_pci_controller = {
  35         .mem_resource   = &lasat_pci_mem_resource,
  36         .io_resource    = &lasat_pci_io_resource,
  37 };
  38
  39 static int __init lasat_pci_setup(void)
  40 {
  41         printk("PCI: starting\n");
  42
  43         switch (mips_machtype) {
  44             case MACH_LASAT_100:
  45                 lasat_pci_controller.pci_ops = &gt64120_pci_ops;
  46                 break;
  47             case MACH_LASAT_200:
  48                 lasat_pci_controller.pci_ops = &nile4_pci_ops;
  49                 break;
  50             default:
  51                 panic("pcibios_init: mips_machtype incorrect");
  52         }
  53
  54         register_pci_controller(&lasat_pci_controller);
  55         return 0;
  56 }
  57 early_initcall(lasat_pci_setup);
  58
  59 #define LASATINT_ETH1   0
  60 #define LASATINT_ETH0   1
  61 #define LASATINT_HDC    2
  62 #define LASATINT_COMP   3
  63 #define LASATINT_HDLC   4
  64 #define LASATINT_PCIA   5
  65 #define LASATINT_PCIB   6
  66 #define LASATINT_PCIC   7
  67 #define LASATINT_PCID   8
  68
  69 int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  70 {
  71     switch (slot) {
  72         case 1:
  73             return LASATINT_PCIA;   /* Expansion Module 0 */
  74         case 2:
  75             return LASATINT_PCIB;   /* Expansion Module 1 */
  76         case 3:
  77             return LASATINT_PCIC;   /* Expansion Module 2 */
  78         case 4:
  79             return LASATINT_ETH1;   /* Ethernet 1 (LAN 2) */
  80         case 5:
  81             return LASATINT_ETH0;   /* Ethernet 0 (LAN 1) */
  82         case 6:
  83             return LASATINT_HDC;    /* IDE controller */
  84         default:
  85             return 0xff;            /* Illegal */
  86     }
  87
  88     return -1;
  89 }
  90
  91 /* Do platform specific device initialization at pci_enable_device() time */
  92 int pcibios_plat_dev_init(struct pci_dev *dev)
  93 {
  94         return 0;
  95 }