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 #include <asm/hardware/dec21285.h>
  15
  16 /* netwinder host-specific stuff */
  17 static int __init netwinder_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  18 {
  19 #define DEV(v,d) ((v)<<16|(d))
  20         switch (DEV(dev->vendor, dev->device)) {
  21         case DEV(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21142):
  22         case DEV(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C885):
  23         case DEV(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_YELLOWFIN):
  24                 return IRQ_NETWINDER_ETHER100;
  25
  26         case DEV(PCI_VENDOR_ID_WINBOND2, 0x5a5a):
  27                 return IRQ_NETWINDER_ETHER10;
  28
  29         case DEV(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_83C553):
  30                 return 0;
  31
  32         case DEV(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105):
  33                 return IRQ_ISA_HARDDISK1;
  34
  35         case DEV(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_2000):
  36         case DEV(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_2010):
  37         case DEV(PCI_VENDOR_ID_INTERG, PCI_DEVICE_ID_INTERG_5000):
  38                 return IRQ_NETWINDER_VGA;
  39
  40         case DEV(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21285):
  41                 return 0;
  42
  43         default:
  44                 printk(KERN_ERR "PCI: %02X:%02X [%04X:%04X] unknown device\n",
  45                         dev->bus->number, dev->devfn,
  46                         dev->vendor, dev->device);
  47                 return 0;
  48         }
  49 }
  50
  51 struct hw_pci netwinder_pci __initdata = {
  52         .setup_resources        = dc21285_setup_resources,
  53         .init                   = dc21285_init,
  54         .mem_offset             = DC21285_PCI_MEM,
  55         .swizzle                = no_swizzle,
  56         .map_irq                = netwinder_map_irq,
  57 };