From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- arch/mn10300/unit-asb2305/pci-irq.c | 50 +++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 arch/mn10300/unit-asb2305/pci-irq.c (limited to 'arch/mn10300/unit-asb2305/pci-irq.c') diff --git a/arch/mn10300/unit-asb2305/pci-irq.c b/arch/mn10300/unit-asb2305/pci-irq.c new file mode 100644 index 00000000..77439da0 --- /dev/null +++ b/arch/mn10300/unit-asb2305/pci-irq.c @@ -0,0 +1,50 @@ +/* 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 +#include +#include +#include +#include +#include +#include +#include +#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 __init pcibios_penalize_isa_irq(int irq) +{ +} + +void pcibios_enable_irq(struct pci_dev *dev) +{ + pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq); +} -- cgit v1.3.1