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/*
* fixup-loongson3.c
*
* Copyright (C) 2012 Lemote, Inc.
* Author: Xiang Yu, xiangy@lemote.com
* Chen Huacai, chenhc@lemote.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.
*
*/
#include <linux/pci.h>
#include <boot_param.h>
static void print_fixup_info(const struct pci_dev *pdev)
{
dev_info(&pdev->dev, "Device %x:%x, irq %d\n",
pdev->vendor, pdev->device, pdev->irq);
}
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
print_fixup_info(dev);
return dev->irq;
}
static void pci_fixup_radeon(struct pci_dev *pdev)
{
struct resource *res = &pdev->resource[PCI_ROM_RESOURCE];
if (res->start)
return;
if (!loongson_sysconf.vgabios_addr)
return;
pci_disable_rom(pdev);
if (res->parent)
release_resource(res);
res->start = virt_to_phys((void *) loongson_sysconf.vgabios_addr);
res->end = res->start + 256*1024 - 1;
res->flags = IORESOURCE_MEM | IORESOURCE_ROM_SHADOW |
IORESOURCE_PCI_FIXED;
dev_info(&pdev->dev, "BAR %d: assigned %pR for Radeon ROM\n",
PCI_ROM_RESOURCE, res);
}
DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_VENDOR_ID_ATI, PCI_ANY_ID,
PCI_CLASS_DISPLAY_VGA, 8, pci_fixup_radeon);
/* Do platform specific device initialization at pci_enable_device() time */
int pcibios_plat_dev_init(struct pci_dev *dev)
{
return 0;
}
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