arch/mips/pci/fixup-tb0287.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  fixup-tb0287.c, The TANBAC TB0287 specific PCI fixups.
   4  *
   5  *  Copyright (C) 2005  Yoichi Yuasa <yuasa@linux-mips.org>
   6  */
   7 #include <linux/init.h>
   8 #include <linux/pci.h>
   9
  10 #include <asm/vr41xx/tb0287.h>
  11
  12 int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  13 {
  14         unsigned char bus;
  15         int irq = -1;
  16
  17         bus = dev->bus->number;
  18         if (bus == 0) {
  19                 switch (slot) {
  20                 case 16:
  21                         irq = TB0287_SM501_IRQ;
  22                         break;
  23                 case 17:
  24                         irq = TB0287_SIL680A_IRQ;
  25                         break;
  26                 default:
  27                         break;
  28                 }
  29         } else if (bus == 1) {
  30                 switch (PCI_SLOT(dev->devfn)) {
  31                 case 0:
  32                         irq = TB0287_PCI_SLOT_IRQ;
  33                         break;
  34                 case 2:
  35                 case 3:
  36                         irq = TB0287_RTL8110_IRQ;
  37                         break;
  38                 default:
  39                         break;
  40                 }
  41         } else if (bus > 1) {
  42                 irq = TB0287_PCI_SLOT_IRQ;
  43         }
  44
  45         return irq;
  46 }
  47
  48 /* Do platform specific device initialization at pci_enable_device() time */
  49 int pcibios_plat_dev_init(struct pci_dev *dev)
  50 {
  51         return 0;
  52 }