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 #include <video/vga.h>
  12
  13 #include <asm/irq.h>
  14 #include <asm/mach/pci.h>
  15 #include <asm/mach-types.h>
  16
  17 static int __init shark_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  18 {
  19         if (dev->bus->number == 0)
  20                 if (dev->devfn == 0)
  21                         return 255;
  22                 else
  23                         return 11;
  24         else
  25                 return 255;
  26 }
  27
  28 extern void __init via82c505_preinit(void);
  29
  30 static struct hw_pci shark_pci __initdata = {
  31         .setup          = via82c505_setup,
  32         .swizzle        = pci_std_swizzle,
  33         .map_irq        = shark_map_irq,
  34         .nr_controllers = 1,
  35         .scan           = via82c505_scan_bus,
  36         .preinit        = via82c505_preinit,
  37 };
  38
  39 static int __init shark_pci_init(void)
  40 {
  41         if (!machine_is_shark())
  42                 return;
  43
  44         pcibios_min_io = 0x6000;
  45         pcibios_min_mem = 0x50000000;
  46         vga_base = 0xe8000000;
  47
  48         pci_common_init(&shark_pci);
  49
  50         return 0;
  51 }
  52
  53 subsys_initcall(shark_pci_init);