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116 lines
3.7 KiB
C
116 lines
3.7 KiB
C
/**************************************************************************
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*
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* BRIEF MODULE DESCRIPTION
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* PCI fixups for IDT EB434 board
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*
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* Copyright 2004 IDT Inc. (rischelp@idt.com)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*
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**************************************************************************
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* May 2004 rkt, neb
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*
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* Initial Release
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*
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*
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*
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**************************************************************************
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*/
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#include <linux/autoconf.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <asm/idt-boards/rc32434/rc32434.h>
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#include <asm/idt-boards/rc32434/rc32434_pci.h>
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int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
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{
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if (dev->bus->number != 0) {
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return 0;
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}
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slot = PCI_SLOT(dev->devfn);
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dev->irq = 0;
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if (slot > 0 && slot <= 15) {
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#if 1
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if(slot == 10) {
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if(pin == 1) dev->irq = GROUP4_IRQ_BASE + 9; // intA
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} else if(slot == 11) {
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if(pin == 1) dev->irq = GROUP4_IRQ_BASE + 10; // intA
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if(pin == 2) dev->irq = GROUP4_IRQ_BASE + 10; // intA
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if(pin == 3) dev->irq = GROUP4_IRQ_BASE + 10; // intA
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} else if(slot == 12) {
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if(pin == 1) dev->irq = GROUP4_IRQ_BASE + 11; // intA
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if(pin == 2) dev->irq = GROUP4_IRQ_BASE + 12; // intB
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} else if (slot == 13) {
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if(pin == 1) dev->irq = GROUP4_IRQ_BASE + 12; // intA
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if(pin == 2) dev->irq = GROUP4_IRQ_BASE + 11; // intB
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} else {
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dev->irq = GROUP4_IRQ_BASE + 11;
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}
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#else
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switch (pin) {
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case 1: /* INTA*/
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dev->irq = GROUP4_IRQ_BASE + 11;
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break;
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case 2: /* INTB */
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dev->irq = GROUP4_IRQ_BASE + 11;
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break;
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case 3: /* INTC */
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dev->irq = GROUP4_IRQ_BASE + 11;
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break;
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case 4: /* INTD */
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dev->irq = GROUP4_IRQ_BASE + 11;
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break;
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default:
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dev->irq = 0xff;
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break;
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}
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#endif
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#ifdef DEBUG
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printk("irq fixup: slot %d, pin %d, irq %d\n",
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slot, pin, dev->irq);
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#endif
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pci_write_config_byte(dev, PCI_INTERRUPT_LINE,dev->irq);
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}
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return (dev->irq);
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}
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struct pci_fixup pcibios_fixups[] = {
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{0}
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};
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