release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mips/pci/fixup-wrppmc.c

   1 /*
   2  * fixup-wrppmc.c: PPMC board specific PCI fixup
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file "COPYING" in the main directory of this archive
   6  * for more details.
   7  *
   8  * Copyright (C) 2006, Wind River Inc. Rongkai.zhan (rongkai.zhan@windriver.com)
   9  */
  10 #include <linux/init.h>
  11 #include <linux/pci.h>
  12 #include <asm/gt64120.h>
  13
  14 /* PCI interrupt pins */
  15 #define PCI_INTA                1
  16 #define PCI_INTB                2
  17 #define PCI_INTC                3
  18 #define PCI_INTD                4
  19
  20 #define PCI_SLOT_MAXNR  32 /* Each PCI bus has 32 physical slots */
  21
  22 static char pci_irq_tab[PCI_SLOT_MAXNR][5] __initdata = {
  23         /* 0    INTA   INTB   INTC   INTD */
  24         [0] = {0, 0, 0, 0, 0},          /* Slot 0: GT64120 PCI bridge */
  25         [6] = {0, WRPPMC_PCI_INTA_IRQ, 0, 0, 0},
  26 };
  27
  28 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  29 {
  30         return pci_irq_tab[slot][pin];
  31 }
  32
  33 /* Do platform specific device initialization at pci_enable_device() time */
  34 int pcibios_plat_dev_init(struct pci_dev *dev)
  35 {
  36         return 0;
  37 }