/* * linux/arch/arm/mach-footbridge/personal-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>static int irqmap_personal_server[] __initdata = {	IRQ_IN0, IRQ_IN1, IRQ_IN2, IRQ_IN3, 0, 0, 0,	IRQ_DOORBELLHOST, IRQ_DMA1, IRQ_DMA2, IRQ_PCI};static int __init personal_server_map_irq(struct pci_dev *dev, u8 slot, u8 pin){	unsigned char line;	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &line);	if (line > 0x40 && line <= 0x5f) {		/* line corresponds to the bit controlling this interrupt		 * in the footbridge.  Ignore the first 8 interrupt bits,		 * look up the rest in the map.  IN0 is bit number 8		 */		return irqmap_personal_server[(line & 0x1f) - 8];	} else if (line == 0) {		/* no interrupt */		return 0;	} else		return irqmap_personal_server[(line - 1) & 3];}struct hw_pci personal_server_pci __initdata = {	setup_resources:	dc21285_setup_resources,	init:			dc21285_init,	mem_offset:		DC21285_PCI_MEM,	swizzle:		no_swizzle,	map_irq:		personal_server_map_irq,};