release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-shark/pci.c

   1 /*
   2  *  linux/arch/arm/mach-shark/pci.c
   3  *
   4  *  PCI bios-type initialisation for PCI machines
   5  *
   6  *  Bits taken from various places.
   7  */
   8 #include <linux/kernel.h>
   9 #include <linux/pci.h>
  10 #include <linux/init.h>
  11
  12 #include <asm/irq.h>
  13 #include <asm/mach/pci.h>
  14 #include <asm/mach-types.h>
  15
  16 static int __init shark_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  17 {
  18         if (dev->bus->number == 0)
  19                 if (dev->devfn == 0)
  20                         return 255;
  21                 else
  22                         return 11;
  23         else
  24                 return 255;
  25 }
  26
  27 extern void __init via82c505_preinit(void);
  28
  29 static struct hw_pci shark_pci __initdata = {
  30         .setup          = via82c505_setup,
  31         .swizzle        = pci_std_swizzle,
  32         .map_irq        = shark_map_irq,
  33         .nr_controllers = 1,
  34         .scan           = via82c505_scan_bus,
  35         .preinit        = via82c505_preinit,
  36 };
  37
  38 static int __init shark_pci_init(void)
  39 {
  40         if (machine_is_shark())
  41                 pci_common_init(&shark_pci);
  42         return 0;
  43 }
  44
  45 subsys_initcall(shark_pci_init);