/* * DSM-G600 board-level PCI initialization * * Copyright (C) 2006 Tower Technologies * Author: Alessandro Zummo <a.zummo@towertech.it> * * based on ixdp425-pci.c: * Copyright (C) 2002 Intel Corporation. * Copyright (C) 2003-2004 MontaVista Software, Inc. * * Maintainer: http://www.nslu2-linux.org/ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * */ #include <linux/pci.h> #include <linux/init.h> #include <linux/irq.h> #include <asm/mach/pci.h> #include <asm/mach-types.h> void __init dsmg600_pci_preinit(void) { set_irq_type(IRQ_DSMG600_PCI_INTA, IRQT_LOW); set_irq_type(IRQ_DSMG600_PCI_INTB, IRQT_LOW); set_irq_type(IRQ_DSMG600_PCI_INTC, IRQT_LOW); set_irq_type(IRQ_DSMG600_PCI_INTD, IRQT_LOW); set_irq_type(IRQ_DSMG600_PCI_INTE, IRQT_LOW); set_irq_type(IRQ_DSMG600_PCI_INTF, IRQT_LOW); ixp4xx_pci_preinit(); } static int __init dsmg600_map_irq(struct pci_dev *dev, u8 slot, u8 pin) { static int pci_irq_table[DSMG600_PCI_MAX_DEV][DSMG600_PCI_IRQ_LINES] = { { IRQ_DSMG600_PCI_INTE, -1, -1 }, { IRQ_DSMG600_PCI_INTA, -1, -1 }, { IRQ_DSMG600_PCI_INTB, IRQ_DSMG600_PCI_INTC, IRQ_DSMG600_PCI_INTD }, { IRQ_DSMG600_PCI_INTF, -1, -1 }, }; int irq = -1; if (slot >= 1 && slot <= DSMG600_PCI_MAX_DEV && pin >= 1 && pin <= DSMG600_PCI_IRQ_LINES) irq = pci_irq_table[slot-1][pin-1]; return irq; } struct hw_pci __initdata dsmg600_pci = { .nr_controllers = 1, .preinit = dsmg600_pci_preinit, .swizzle = pci_std_swizzle, .setup = ixp4xx_setup, .scan = ixp4xx_scan_bus, .map_irq = dsmg600_map_irq, }; int __init dsmg600_pci_init(void) { if (machine_is_dsmg600()) pci_common_init(&dsmg600_pci); return 0; } subsys_initcall(dsmg600_pci_init);