cats-pci.c
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:1k
- /*
- * linux/arch/arm/mach-footbridge/cats-pci.c
- *
- * PCI bios-type initialisation for PCI machines
- *
- * Bits taken from various places.
- */
- #include <linux/kernel.h>
- #include <linux/pci.h>
- #include <linux/init.h>
- #include <asm/irq.h>
- #include <asm/mach/pci.h>
- #include <asm/hardware/dec21285.h>
- /* cats host-specific stuff */
- static int irqmap_cats[] __initdata = { IRQ_PCI, IRQ_IN0, IRQ_IN1, IRQ_IN3 };
- static int __init cats_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
- {
- if (dev->irq >= 128)
- return dev->irq & 0x1f;
- if (dev->irq >= 1 && dev->irq <= 4)
- return irqmap_cats[dev->irq - 1];
- if (dev->irq != 0)
- printk("PCI: device %02x:%02x has unknown irq line %xn",
- dev->bus->number, dev->devfn, dev->irq);
- return -1;
- }
- struct hw_pci cats_pci __initdata = {
- setup_resources: dc21285_setup_resources,
- init: dc21285_init,
- mem_offset: DC21285_PCI_MEM,
- swizzle: no_swizzle,
- map_irq: cats_map_irq,
- };