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/*
* arch/sh/drivers/pci/ops-landisk.c
*
* PCI initialization for the I-O DATA Device, Inc. LANDISK board
*
* Copyright (C) 2006 kogiidena
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pci.h>
#include "pci-sh4.h"
int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
{
/*
* slot0: pin1-4 = irq5,6,7,8
* slot1: pin1-4 = irq6,7,8,5
* slot2: pin1-4 = irq7,8,5,6
* slot3: pin1-4 = irq8,5,6,7
*/
int irq = ((slot + pin - 1) & 0x3) + 5;
if ((slot | (pin - 1)) > 0x3) {
printk("PCI: Bad IRQ mapping request for slot %d pin %c\n",
slot, pin - 1 + 'A');
return -1;
}
return irq;
}
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