forked from Minki/linux
71 lines
2.5 KiB
C
71 lines
2.5 KiB
C
/*
|
|
* 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 <linux/init.h>
|
|
|
|
#include <asm/mach-rc32434/rc32434.h>
|
|
#include <asm/mach-rc32434/irq.h>
|
|
|
|
static int __devinitdata 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 __devinit 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 __devinit 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;
|
|
}
|