| /* |
| * Copyright 2001 MontaVista Software Inc. |
| * Author: MontaVista Software, Inc. |
| * stevel@mvista.com or source@mvista.com |
| * |
| * 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. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include <linux/types.h> |
| #include <linux/pci.h> |
| #include <linux/kernel.h> |
| |
| #include <asm/mach-rc32434/rc32434.h> |
| #include <asm/mach-rc32434/irq.h> |
| |
| static int irq_map[2][12] = { |
| {0, 0, 2, 3, 2, 3, 0, 0, 0, 0, 0, 1}, |
| {0, 0, 1, 3, 0, 2, 1, 3, 0, 2, 1, 3} |
| }; |
| |
| int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
| { |
| int irq = 0; |
| |
| if (dev->bus->number < 2 && PCI_SLOT(dev->devfn) < 12) |
| irq = irq_map[dev->bus->number][PCI_SLOT(dev->devfn)]; |
| |
| return irq + GROUP4_IRQ_BASE + 4; |
| } |
| |
| static void rc32434_pci_early_fixup(struct pci_dev *dev) |
| { |
| if (PCI_SLOT(dev->devfn) == 6 && dev->bus->number == 0) { |
| /* disable prefetched memory range */ |
| pci_write_config_word(dev, PCI_PREF_MEMORY_LIMIT, 0); |
| pci_write_config_word(dev, PCI_PREF_MEMORY_BASE, 0x10); |
| |
| pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, 4); |
| } |
| } |
| |
| /* |
| * The fixup applies to both the IDT and VIA devices present on the board |
| */ |
| DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, rc32434_pci_early_fixup); |
| |
| /* Do platform specific device initialization at pci_enable_device() time */ |
| int pcibios_plat_dev_init(struct pci_dev *dev) |
| { |
| return 0; |
| } |