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/pci.h>
  11 #include <linux/types.h>
  12 #include <asm/bootinfo.h>
  13
  14 extern struct pci_ops nile4_pci_ops;
  15 extern struct pci_ops gt64120_pci_ops;
  16 static struct resource lasat_pci_mem_resource = {
  17         .name   = "LASAT PCI MEM",
  18         .start  = 0x18000000,
  19         .end    = 0x19ffffff,
  20         .flags  = IORESOURCE_MEM,
  21 };
  22
  23 static struct resource lasat_pci_io_resource = {
  24         .name   = "LASAT PCI IO",
  25         .start  = 0x1a000000,
  26         .end    = 0x1bffffff,
  27         .flags  = IORESOURCE_IO,
  28 };
  29
  30 static struct pci_controller lasat_pci_controller = {
  31         .mem_resource   = &lasat_pci_mem_resource,
  32         .io_resource    = &lasat_pci_io_resource,
  33 };
  34
  35 static int __init lasat_pci_setup(void)
  36 {
  37         printk("PCI: starting\n");
  38
  39         switch (mips_machtype) {
  40         case MACH_LASAT_100:
  41                 lasat_pci_controller.pci_ops = &gt64120_pci_ops;
  42                 break;
  43         case MACH_LASAT_200:
  44                 lasat_pci_controller.pci_ops = &nile4_pci_ops;
  45                 break;
  46         default:
  47                 panic("pcibios_init: mips_machtype incorrect");
  48         }
  49
  50         register_pci_controller(&lasat_pci_controller);
  51
  52         return 0;
  53 }
  54
  55 arch_initcall(lasat_pci_setup);
  56
  57 #define LASATINT_ETH1   0
  58 #define LASATINT_ETH0   1
  59 #define LASATINT_HDC    2
  60 #define LASATINT_COMP   3
  61 #define LASATINT_HDLC   4
  62 #define LASATINT_PCIA   5
  63 #define LASATINT_PCIB   6
  64 #define LASATINT_PCIC   7
  65 #define LASATINT_PCID   8
  66
  67 int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  68 {
  69         switch (slot) {
  70         case 1:
  71         case 2:
  72         case 3:
  73                 return LASATINT_PCIA + (((slot-1) + (pin-1)) % 4);
  74         case 4:
  75                 return LASATINT_ETH1;   /* Ethernet 1 (LAN 2) */
  76         case 5:
  77                 return LASATINT_ETH0;   /* Ethernet 0 (LAN 1) */
  78         case 6:
  79                 return LASATINT_HDC;    /* IDE controller */
  80         default:
  81                 return 0xff;            /* Illegal */
  82         }
  83
  84         return -1;
  85 }
  86
  87 /* Do platform specific device initialization at pci_enable_device() time */
  88 int pcibios_plat_dev_init(struct pci_dev *dev)
  89 {
  90         return 0;
  91 }