pci_fixups.c
上传用户:jlfgdled
上传日期:2013-04-10
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文件大小:3k
- /*
- *
- * BRIEF MODULE DESCRIPTION
- * EV96100 Board specific pci fixups.
- *
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ppopov@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/config.h>
- #ifdef CONFIG_PCI
- #include <linux/types.h>
- #include <linux/pci.h>
- #include <linux/kernel.h>
- #include <linux/init.h>
- #include <linux/pci_ids.h>
- #include <asm/gt64120.h>
- #include <asm/galileo-boards/ev96100.h>
- extern unsigned short get_gt_devid(void);
- void __init pcibios_fixup_resources(struct pci_dev *dev)
- {
- }
- void __init pcibios_fixup(void)
- {
- }
- void __init pcibios_fixup_irqs(void)
- {
- struct pci_dev *dev;
- unsigned int slot;
- u32 vendor;
- unsigned short gt_devid = get_gt_devid();
- /*
- ** EV96100/A interrupt routing for pci bus 0
- **
- ** Note: EV96100A board with irq jumper set on 'VxWorks'
- ** for EV96100 compatibility.
- */
- pci_for_each_dev(dev) {
- if (dev->bus->number != 0)
- return;
- slot = PCI_SLOT(dev->devfn);
- pci_read_config_dword(dev, PCI_SUBSYSTEM_VENDOR_ID, &vendor);
- #ifdef DEBUG
- printk("devfn %x, slot %d devid %xn",
- dev->devfn, slot, gt_devid);
- #endif
- /* fixup irq line based on slot # */
- if (slot == 8) {
- dev->irq = 5;
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
- dev->irq);
- }
- else if (slot == 9) {
- dev->irq = 2;
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE,
- dev->irq);
- }
- }
- }
- unsigned int pcibios_assign_all_busses(void)
- {
- return 0;
- }
- #endif