11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * 31da177e4SLinus Torvalds * BRIEF MODULE DESCRIPTION 41da177e4SLinus Torvalds * Board specific pci fixups for the Toshiba rbtx4927 51da177e4SLinus Torvalds * 61da177e4SLinus Torvalds * Copyright 2001 MontaVista Software Inc. 71da177e4SLinus Torvalds * Author: MontaVista Software, Inc. 81da177e4SLinus Torvalds * ppopov@mvista.com or source@mvista.com 91da177e4SLinus Torvalds * 101da177e4SLinus Torvalds * Copyright (C) 2000-2001 Toshiba Corporation 111da177e4SLinus Torvalds * 121da177e4SLinus Torvalds * Copyright (C) 2004 MontaVista Software Inc. 131da177e4SLinus Torvalds * Author: Manish Lachwani (mlachwani@mvista.com) 141da177e4SLinus Torvalds * 151da177e4SLinus Torvalds * This program is free software; you can redistribute it and/or modify it 161da177e4SLinus Torvalds * under the terms of the GNU General Public License as published by the 171da177e4SLinus Torvalds * Free Software Foundation; either version 2 of the License, or (at your 181da177e4SLinus Torvalds * option) any later version. 191da177e4SLinus Torvalds * 201da177e4SLinus Torvalds * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED 211da177e4SLinus Torvalds * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 221da177e4SLinus Torvalds * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 231da177e4SLinus Torvalds * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 241da177e4SLinus Torvalds * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 251da177e4SLinus Torvalds * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 261da177e4SLinus Torvalds * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 271da177e4SLinus Torvalds * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 281da177e4SLinus Torvalds * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 291da177e4SLinus Torvalds * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 301da177e4SLinus Torvalds * 311da177e4SLinus Torvalds * You should have received a copy of the GNU General Public License along 321da177e4SLinus Torvalds * with this program; if not, write to the Free Software Foundation, Inc., 331da177e4SLinus Torvalds * 675 Mass Ave, Cambridge, MA 02139, USA. 341da177e4SLinus Torvalds */ 351da177e4SLinus Torvalds #include <linux/types.h> 3689d63fe1SAtsushi Nemoto #include <asm/txx9/pci.h> 3789d63fe1SAtsushi Nemoto #include <asm/txx9/rbtx4927.h> 381da177e4SLinus Torvalds 3919df0d11SRalf Baechle int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) 401da177e4SLinus Torvalds { 4189d63fe1SAtsushi Nemoto unsigned char irq = pin; 421da177e4SLinus Torvalds 4389d63fe1SAtsushi Nemoto /* IRQ rotation */ 4489d63fe1SAtsushi Nemoto irq--; /* 0-3 */ 4589d63fe1SAtsushi Nemoto if (slot == TX4927_PCIC_IDSEL_AD_TO_SLOT(23)) { 4689d63fe1SAtsushi Nemoto /* PCI CardSlot (IDSEL=A23) */ 4789d63fe1SAtsushi Nemoto /* PCIA => PCIA */ 4889d63fe1SAtsushi Nemoto irq = (irq + 0 + slot) % 4; 4989d63fe1SAtsushi Nemoto } else { 5089d63fe1SAtsushi Nemoto /* PCI Backplane */ 5189d63fe1SAtsushi Nemoto if (txx9_pci_option & TXX9_PCI_OPT_PICMG) 5289d63fe1SAtsushi Nemoto irq = (irq + 33 - slot) % 4; 531da177e4SLinus Torvalds else 5489d63fe1SAtsushi Nemoto irq = (irq + 3 + slot) % 4; 5589d63fe1SAtsushi Nemoto } 5689d63fe1SAtsushi Nemoto irq++; /* 1-4 */ 571da177e4SLinus Torvalds 5889d63fe1SAtsushi Nemoto switch (irq) { 5989d63fe1SAtsushi Nemoto case 1: 6089d63fe1SAtsushi Nemoto irq = RBTX4927_IRQ_IOC_PCIA; 6189d63fe1SAtsushi Nemoto break; 6289d63fe1SAtsushi Nemoto case 2: 6389d63fe1SAtsushi Nemoto irq = RBTX4927_IRQ_IOC_PCIB; 6489d63fe1SAtsushi Nemoto break; 6589d63fe1SAtsushi Nemoto case 3: 6689d63fe1SAtsushi Nemoto irq = RBTX4927_IRQ_IOC_PCIC; 6789d63fe1SAtsushi Nemoto break; 6889d63fe1SAtsushi Nemoto case 4: 6989d63fe1SAtsushi Nemoto irq = RBTX4927_IRQ_IOC_PCID; 7089d63fe1SAtsushi Nemoto break; 7189d63fe1SAtsushi Nemoto } 721da177e4SLinus Torvalds return irq; 731da177e4SLinus Torvalds } 741da177e4SLinus Torvalds 751da177e4SLinus Torvalds /* Do platform specific device initialization at pci_enable_device() time */ 761da177e4SLinus Torvalds int pcibios_plat_dev_init(struct pci_dev *dev) 771da177e4SLinus Torvalds { 781da177e4SLinus Torvalds return 0; 791da177e4SLinus Torvalds } 80