/* PCI IRQ routing on the MN103E010 based ASB2305 * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public Licence * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. * * This is simple: All PCI interrupts route through the CPU's XIRQ1 pin [IRQ 35] */ #include <linux/types.h> #include <linux/kernel.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <asm/io.h> #include <asm/smp.h> #include "pci-asb2305.h" void __init pcibios_irq_init(void) { } void __init pcibios_fixup_irqs(void) { struct pci_dev *dev = NULL; u8 line, pin; for_each_pci_dev(dev) { pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); if (pin) { dev->irq = XIRQ1; pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); } pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &line); } } void pcibios_enable_irq(struct pci_dev *dev) { pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); }