From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/frv/mb93090-mb00/pci-irq.c | 61 ++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 kernel/arch/frv/mb93090-mb00/pci-irq.c (limited to 'kernel/arch/frv/mb93090-mb00/pci-irq.c') diff --git a/kernel/arch/frv/mb93090-mb00/pci-irq.c b/kernel/arch/frv/mb93090-mb00/pci-irq.c new file mode 100644 index 000000000..1c35c93f9 --- /dev/null +++ b/kernel/arch/frv/mb93090-mb00/pci-irq.c @@ -0,0 +1,61 @@ +/* pci-irq.c: PCI IRQ routing on the FRV motherboard + * + * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * derived from: arch/i386/kernel/pci-irq.c: (c) 1999--2000 Martin Mares + */ + +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "pci-frv.h" + +/* + * DEVICE DEVNO INT#A INT#B INT#C INT#D + * ======= ======= ======= ======= ======= ======= + * MB86943 0 fpga.10 - - - + * RTL8029 16 fpga.12 - - - + * SLOT 1 19 fpga.6 fpga.5 fpga.4 fpga.3 + * SLOT 2 18 fpga.5 fpga.4 fpga.3 fpga.6 + * SLOT 3 17 fpga.4 fpga.3 fpga.6 fpga.5 + * + */ + +static const uint8_t __initconst pci_bus0_irq_routing[32][4] = { + [0 ] = { IRQ_FPGA_MB86943_PCI_INTA }, + [16] = { IRQ_FPGA_RTL8029_INTA }, + [17] = { IRQ_FPGA_PCI_INTC, IRQ_FPGA_PCI_INTD, IRQ_FPGA_PCI_INTA, IRQ_FPGA_PCI_INTB }, + [18] = { IRQ_FPGA_PCI_INTB, IRQ_FPGA_PCI_INTC, IRQ_FPGA_PCI_INTD, IRQ_FPGA_PCI_INTA }, + [19] = { IRQ_FPGA_PCI_INTA, IRQ_FPGA_PCI_INTB, IRQ_FPGA_PCI_INTC, IRQ_FPGA_PCI_INTD }, +}; + +void __init pcibios_irq_init(void) +{ +} + +void __init pcibios_fixup_irqs(void) +{ + struct pci_dev *dev = NULL; + uint8_t line, pin; + + for_each_pci_dev(dev) { + pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin); + if (pin) { + dev->irq = pci_bus0_irq_routing[PCI_SLOT(dev->devfn)][pin - 1]; + 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); +} -- cgit 1.2.3-korg