arch/arm/mach-footbridge/netwinder-pci.c

   1 /*
   2  * linux/arch/arm/mach-footbridge/netwinder-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
  15 /* netwinder host-specific stuff */
  16 static int __init netwinder_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  17 {
  18 #define DEV(v,d) ((v)<<16|(d))
  19         switch (DEV(dev->vendor, dev->device)) {
  20         case DEV(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142):
  21         case DEV(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C885):
  22         case DEV(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_YELLOWFIN):
  23                 return IRQ_NETWINDER_ETHER100;
  24
  25         case DEV(PCI_VENDOR_ID_WINBOND2, 0x5a5a):
  26                 return IRQ_NETWINDER_ETHER10;
  27
  28         case DEV(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_83C553):
  29                 return 0;
  30
  31         case DEV(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105):
  32                 return IRQ_ISA_HARDDISK1;
  33
  34         case DEV(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_2000):
  35         case DEV(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_2010):
  36         case DEV(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5000):
  37                 return IRQ_NETWINDER_VGA;
  38
  39         case DEV(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285):
  40                 return 0;
  41
  42         default:
  43                 printk(KERN_ERR "PCI: %02X:%02X [%04X:%04X] unknown device\n",
  44                         dev->bus->number, dev->devfn,
  45                         dev->vendor, dev->device);
  46                 return 0;
  47         }
  48 }
  49
  50 struct hw_pci netwinder_pci __initdata = {
  51         init:           dc21285_init,
  52         swizzle:        no_swizzle,
  53         map_irq:        netwinder_map_irq,
  54 };