/* * Copyright 2001 MontaVista Software Inc. * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net * * arch/mips/gt64120/momenco_ocelot/pci.c * Board-specific PCI routines for gt64120 controller. * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. */ #include <linux/types.h> #include <linux/pci.h> #include <linux/kernel.h> #include <linux/init.h> #include <asm/pci.h> void __devinit pcibios_fixup_bus(struct pci_bus *bus) { struct pci_bus *current_bus = bus; struct pci_dev *devices; struct list_head *devices_link; u16 cmd; list_for_each(devices_link, &(current_bus->devices)) { devices = pci_dev_b(devices_link); if (devices == NULL) continue; if (PCI_SLOT(devices->devfn) == 1) { /* * Slot 1 is primary ether port, i82559 * we double-check against that assumption */ if ((devices->vendor != 0x8086) || (devices->device != 0x1209)) { panic("pcibios_fixup_bus: found " "unexpected PCI device in slot 1."); } devices->irq = 2; /* irq_nr is 2 for INT0 */ } else if (PCI_SLOT(devices->devfn) == 2) { /* * Slot 2 is secondary ether port, i21143 * we double-check against that assumption */ if ((devices->vendor != 0x1011) || (devices->device != 0x19)) { panic("galileo_pcibios_fixup_bus: " "found unexpected PCI device in slot 2."); } devices->irq = 3; /* irq_nr is 3 for INT1 */ } else if (PCI_SLOT(devices->devfn) == 4) { /* PMC Slot 1 */ devices->irq = 8; /* irq_nr is 8 for INT6 */ } else if (PCI_SLOT(devices->devfn) == 5) { /* PMC Slot 1 */ devices->irq = 9; /* irq_nr is 9 for INT7 */ } else { /* We don't have assign interrupts for other devices. */ devices->irq = 0xff; } /* Assign an interrupt number for the device */ bus->ops->write_byte(devices, PCI_INTERRUPT_LINE, devices->irq); /* enable master */ bus->ops->read_word(devices, PCI_COMMAND, &cmd); cmd |= PCI_COMMAND_MASTER; bus->ops->write_word(devices, PCI_COMMAND, cmd); } }