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 <linux/io.h>
  12 #include <video/vga.h>
  13
  14 #include <asm/irq.h>
  15 #include <asm/mach/pci.h>
  16 #include <asm/mach-types.h>
  17
  18 #define IO_START        0x40000000
  19
  20 static int __init shark_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  21 {
  22         if (dev->bus->number == 0)
  23                 if (dev->devfn == 0)
  24                         return 255;
  25                 else
  26                         return 11;
  27         else
  28                 return 255;
  29 }
  30
  31 extern void __init via82c505_preinit(void);
  32
  33 static struct hw_pci shark_pci __initdata = {
  34         .setup          = via82c505_setup,
  35         .map_irq        = shark_map_irq,
  36         .nr_controllers = 1,
  37         .ops            = &via82c505_ops,
  38         .preinit        = via82c505_preinit,
  39 };
  40
  41 static int __init shark_pci_init(void)
  42 {
  43         if (!machine_is_shark())
  44                 return -ENODEV;
  45
  46         pcibios_min_io = 0x6000;
  47         pcibios_min_mem = 0x50000000;
  48         vga_base = 0xe8000000;
  49
  50         pci_ioremap_io(0, IO_START);
  51
  52         pci_common_init(&shark_pci);
  53
  54         return 0;
  55 }
  56
  57 subsys_initcall(shark_pci_init);