Blame view

kernel/linux-rt-4.4.41/arch/mips/pci/fixup-loongson3.c 2.19 KB
5113f6f70   김현기   kernel add
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
  /*
   * 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
  ",
  			pdev->vendor, pdev->device, pdev->irq);
  }
  
  int __init 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)
  {
  	if (pdev->resource[PCI_ROM_RESOURCE].start)
  		return;
  
  	if (!loongson_sysconf.vgabios_addr)
  		return;
  
  	pdev->resource[PCI_ROM_RESOURCE].start =
  		loongson_sysconf.vgabios_addr;
  	pdev->resource[PCI_ROM_RESOURCE].end   =
  		loongson_sysconf.vgabios_addr + 256*1024 - 1;
  	pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_COPY;
  
  	dev_info(&pdev->dev, "BAR %d: assigned %pR for Radeon ROM
  ",
  			PCI_ROM_RESOURCE, &pdev->resource[PCI_ROM_RESOURCE]);
  }
  
  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;
  }