netwinder-pci.c

来自「是关于linux2.5.1的完全源码」· C语言 代码 · 共 53 行

/*
 * linux/arch/arm/mach-footbridge/netwinder-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>

/*
 * We now use the slot ID instead of the device identifiers to select
 * which interrupt is routed where.
 */
static int __init netwinder_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
	switch (slot) {
	case 0:  /* host bridge */
		return 0;

	case 9:  /* CyberPro */
		return IRQ_NETWINDER_VGA;

	case 10: /* DC21143 */
		return IRQ_NETWINDER_ETHER100;

	case 12: /* Winbond 553 */
		return IRQ_ISA_HARDDISK1;

	case 13: /* Winbond 89C940F */
		return IRQ_NETWINDER_ETHER10;

	default:
		printk(KERN_ERR "PCI: unknown device in slot %s: %s\n",
			dev->slot_name, dev->name);
		return 0;
	}
}

struct hw_pci netwinder_pci __initdata = {
	swizzle:		pci_std_swizzle,
	map_irq:		netwinder_map_irq,
	nr_controllers:		1,
	setup:			dc21285_setup,
	scan:			dc21285_scan_bus,
	preinit:		dc21285_preinit,
	postinit:		dc21285_postinit,
};