Category

Development Platform
Home > SourceCode/Document > Linux-Unix program > View Code
cats-pci.c
Package: linux-2.4.20.tar.gz　[view]
Upload User: jlfgdled
Upload Date: 2013-04-10
Package Size: 33168k
Code Size: 1k
Category:

Linux-Unix program

Development Platform:

Unix_Linux

cats-pci.c：Code Content
  1. /*
  2.  * linux/arch/arm/mach-footbridge/cats-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>
  12. #include <asm/irq.h>
  13. #include <asm/mach/pci.h>
  14. #include <asm/hardware/dec21285.h>
  16. /* cats host-specific stuff */
  17. static int irqmap_cats[] __initdata = { IRQ_PCI, IRQ_IN0, IRQ_IN1, IRQ_IN3 };
  19. static int __init cats_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  20. {
  21. if (dev->irq >= 128)
  22. return dev->irq & 0x1f;
  24. if (dev->irq >= 1 && dev->irq <= 4)
  25. return irqmap_cats[dev->irq - 1];
  27. if (dev->irq != 0)
  28. printk("PCI: device %02x:%02x has unknown irq line %xn",
  29.        dev->bus->number, dev->devfn, dev->irq);
  31. return -1;
  32. }
  34. struct hw_pci cats_pci __initdata = {
  35. setup_resources: dc21285_setup_resources,
  36. init: dc21285_init,
  37. mem_offset: DC21285_PCI_MEM,
  38. swizzle: no_swizzle,
  39. map_irq: cats_map_irq,
  40. };