arch/mips/pci/fixup-ite8172g.c

   1 /*
   2  * BRIEF MODULE DESCRIPTION
   3  *      Board specific pci fixups.
   4  *
   5  * Copyright 2000 MontaVista Software Inc.
   6  * Author: MontaVista Software, Inc.
   7  *              ppopov@mvista.com or source@mvista.com
   8  *
   9  *  This program is free software; you can redistribute  it and/or modify it
  10  *  under  the terms of  the GNU General  Public License as published by the
  11  *  Free Software Foundation;  either version 2 of the  License, or (at your
  12  *  option) any later version.
  13  *
  14  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
  15  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
  16  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  17  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
  18  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
  20  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  21  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
  22  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  *
  25  *  You should have received a copy of the  GNU General Public License along
  26  *  with this program; if not, write  to the Free Software Foundation, Inc.,
  27  *  675 Mass Ave, Cambridge, MA 02139, USA.
  28  */
  29 #include <linux/types.h>
  30 #include <linux/pci.h>
  31 #include <linux/kernel.h>
  32 #include <linux/init.h>
  33
  34 #include <asm/it8172/it8172.h>
  35 #include <asm/it8172/it8172_pci.h>
  36 #include <asm/it8172/it8172_int.h>
  37
  38 /*
  39  * Shortcuts
  40  */
  41 #define INTA    IT8172_PCI_INTA_IRQ
  42 #define INTB    IT8172_PCI_INTB_IRQ
  43 #define INTC    IT8172_PCI_INTC_IRQ
  44 #define INTD    IT8172_PCI_INTD_IRQ
  45
  46 static const int internal_func_irqs[7] __initdata = {
  47         IT8172_AC97_IRQ,
  48         IT8172_DMA_IRQ,
  49         IT8172_CDMA_IRQ,
  50         IT8172_USB_IRQ,
  51         IT8172_BRIDGE_MASTER_IRQ,
  52         IT8172_IDE_IRQ,
  53         IT8172_MC68K_IRQ
  54 };
  55
  56 static char irq_tab_ite8172g[][5] __initdata = {
  57  [0x10] = {     0, INTA, INTB, INTC, INTD },
  58  [0x11] = {     0, INTA, INTB, INTC, INTD },
  59  [0x12] = {     0, INTB, INTC, INTD, INTA },
  60  [0x13] = {     0, INTC, INTD, INTA, INTB },
  61  [0x14] = {     0, INTD, INTA, INTB, INTC },
  62 };
  63
  64 int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  65 {
  66         /*
  67          * Internal device 1 is actually 7 different internal devices on the
  68          * IT8172G (a multifunction device).
  69          */
  70         if (slot == 1)
  71                 return internal_func_irqs[PCI_FUNC(dev->devfn)];
  72
  73         return irq_tab_ite8172g[slot][pin];
  74 }
  75
  76 /* Do platform specific device initialization at pci_enable_device() time */
  77 int pcibios_plat_dev_init(struct pci_dev *dev)
  78 {
  79         return 0;
  80 }