1*84972ec0SPaul Mundt /* 2*84972ec0SPaul Mundt * arch/sh/drivers/pci/ops-landisk.c 3*84972ec0SPaul Mundt * 4*84972ec0SPaul Mundt * PCI initialization for the I-O DATA Device, Inc. LANDISK board 5*84972ec0SPaul Mundt * 6*84972ec0SPaul Mundt * Copyright (C) 2006 kogiidena 7*84972ec0SPaul Mundt * 8*84972ec0SPaul Mundt * May be copied or modified under the terms of the GNU General Public 9*84972ec0SPaul Mundt * License. See linux/COPYING for more information. 10*84972ec0SPaul Mundt */ 11*84972ec0SPaul Mundt #include <linux/kernel.h> 12*84972ec0SPaul Mundt #include <linux/types.h> 13*84972ec0SPaul Mundt #include <linux/init.h> 14*84972ec0SPaul Mundt #include <linux/delay.h> 15*84972ec0SPaul Mundt #include <linux/pci.h> 16*84972ec0SPaul Mundt #include "pci-sh4.h" 17*84972ec0SPaul Mundt 18*84972ec0SPaul Mundt int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) 19*84972ec0SPaul Mundt { 20*84972ec0SPaul Mundt /* 21*84972ec0SPaul Mundt * slot0: pin1-4 = irq5,6,7,8 22*84972ec0SPaul Mundt * slot1: pin1-4 = irq6,7,8,5 23*84972ec0SPaul Mundt * slot2: pin1-4 = irq7,8,5,6 24*84972ec0SPaul Mundt * slot3: pin1-4 = irq8,5,6,7 25*84972ec0SPaul Mundt */ 26*84972ec0SPaul Mundt int irq = ((slot + pin - 1) & 0x3) + 5; 27*84972ec0SPaul Mundt 28*84972ec0SPaul Mundt if ((slot | (pin - 1)) > 0x3) { 29*84972ec0SPaul Mundt printk("PCI: Bad IRQ mapping request for slot %d pin %c\n", 30*84972ec0SPaul Mundt slot, pin - 1 + 'A'); 31*84972ec0SPaul Mundt return -1; 32*84972ec0SPaul Mundt } 33*84972ec0SPaul Mundt return irq; 34*84972ec0SPaul Mundt } 35