184972ec0SPaul Mundt /* 284972ec0SPaul Mundt * arch/sh/drivers/pci/ops-landisk.c 384972ec0SPaul Mundt * 484972ec0SPaul Mundt * PCI initialization for the I-O DATA Device, Inc. LANDISK board 584972ec0SPaul Mundt * 684972ec0SPaul Mundt * Copyright (C) 2006 kogiidena 784972ec0SPaul Mundt * 884972ec0SPaul Mundt * May be copied or modified under the terms of the GNU General Public 984972ec0SPaul Mundt * License. See linux/COPYING for more information. 1084972ec0SPaul Mundt */ 1184972ec0SPaul Mundt #include <linux/kernel.h> 1284972ec0SPaul Mundt #include <linux/types.h> 1384972ec0SPaul Mundt #include <linux/init.h> 1484972ec0SPaul Mundt #include <linux/delay.h> 1584972ec0SPaul Mundt #include <linux/pci.h> 1684972ec0SPaul Mundt #include "pci-sh4.h" 1784972ec0SPaul Mundt 1884972ec0SPaul Mundt int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin) 1984972ec0SPaul Mundt { 2084972ec0SPaul Mundt /* 2184972ec0SPaul Mundt * slot0: pin1-4 = irq5,6,7,8 2284972ec0SPaul Mundt * slot1: pin1-4 = irq6,7,8,5 2384972ec0SPaul Mundt * slot2: pin1-4 = irq7,8,5,6 2484972ec0SPaul Mundt * slot3: pin1-4 = irq8,5,6,7 2584972ec0SPaul Mundt */ 2684972ec0SPaul Mundt int irq = ((slot + pin - 1) & 0x3) + 5; 2784972ec0SPaul Mundt 2884972ec0SPaul Mundt if ((slot | (pin - 1)) > 0x3) { 2984972ec0SPaul Mundt printk("PCI: Bad IRQ mapping request for slot %d pin %c\n", 3084972ec0SPaul Mundt slot, pin - 1 + 'A'); 3184972ec0SPaul Mundt return -1; 3284972ec0SPaul Mundt } 3384972ec0SPaul Mundt return irq; 3484972ec0SPaul Mundt } 35