arch/mips/pci/fixup-atlas.c

   1 /*
   2  * Copyright (C) 2003, 2004  Ralf Baechle (ralf@linux-mips.org)
   3  * Copyright (C) 2005  MIPS Technologies, Inc.  All rights reserved.
   4  *      Author:  Maciej W. Rozycki <macro@mips.com>
   5  *
   6  *  This program is free software; you can distribute it and/or modify it
   7  *  under the terms of the GNU General Public License (Version 2) as
   8  *  published by the Free Software Foundation.
   9  *
  10  *  This program is distributed in the hope it will be useful, but WITHOUT
  11  *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  *  for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License along
  16  *  with this program; if not, write to the Free Software Foundation, Inc.,
  17  *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  18  */
  19 #include <linux/init.h>
  20 #include <linux/pci.h>
  21
  22 #include <asm/mips-boards/atlasint.h>
  23
  24 #define PCIA            ATLAS_INT_PCIA
  25 #define PCIB            ATLAS_INT_PCIB
  26 #define PCIC            ATLAS_INT_PCIC
  27 #define PCID            ATLAS_INT_PCID
  28 #define INTA            ATLAS_INT_INTA
  29 #define INTB            ATLAS_INT_INTB
  30 #define ETH             ATLAS_INT_ETH
  31 #define INTC            ATLAS_INT_INTC
  32 #define SCSI            ATLAS_INT_SCSI
  33 #define INTD            ATLAS_INT_INTD
  34
  35 static char irq_tab[][5] __initdata = {
  36         /*      INTA    INTB    INTC    INTD */
  37         {0,     0,      0,      0,      0 },    /*  0: Unused */
  38         {0,     0,      0,      0,      0 },    /*  1: Unused */
  39         {0,     0,      0,      0,      0 },    /*  2: Unused */
  40         {0,     0,      0,      0,      0 },    /*  3: Unused */
  41         {0,     0,      0,      0,      0 },    /*  4: Unused */
  42         {0,     0,      0,      0,      0 },    /*  5: Unused */
  43         {0,     0,      0,      0,      0 },    /*  6: Unused */
  44         {0,     0,      0,      0,      0 },    /*  7: Unused */
  45         {0,     0,      0,      0,      0 },    /*  8: Unused */
  46         {0,     0,      0,      0,      0 },    /*  9: Unused */
  47         {0,     0,      0,      0,      0 },    /* 10: Unused */
  48         {0,     0,      0,      0,      0 },    /* 11: Unused */
  49         {0,     0,      0,      0,      0 },    /* 12: Unused */
  50         {0,     0,      0,      0,      0 },    /* 13: Unused */
  51         {0,     0,      0,      0,      0 },    /* 14: Unused */
  52         {0,     PCIA,   PCIB,   PCIC,   PCID }, /* 15: cPCI (behind 21150) */
  53         {0,     SCSI,   0,      0,      0 },    /* 16: SYM53C810A SCSI */
  54         {0,     0,      0,      0,      0 },    /* 17: Core */
  55         {0,     INTA,   INTB,   INTC,   INTD }, /* 18: PCI Slot */
  56         {0,     ETH,    0,      0,      0 },    /* 19: SAA9730 Eth. et al. */
  57         {0,     0,      0,      0,      0 },    /* 20: Unused */
  58         {0,     0,      0,      0,      0 }     /* 21: Unused */
  59 };
  60
  61 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  62 {
  63         return irq_tab[slot][pin];
  64 }
  65
  66 /* Do platform specific device initialization at pci_enable_device() time */
  67 int pcibios_plat_dev_init(struct pci_dev *dev)
  68 {
  69         return 0;
  70 }
  71
  72 #ifdef CONFIG_KGDB
  73 /*
  74  * The PCI scan may have moved the saa9730 I/O address, so reread
  75  * the address here.
  76  * This does mean that it's not possible to debug the PCI bus configuration
  77  * code, but it is better than nothing...
  78  */
  79
  80 static void atlas_saa9730_base_fixup(struct pci_dev *pdev)
  81 {
  82         extern void *saa9730_base;
  83         if (pdev->bus == 0 && PCI_SLOT(pdev->devfn) == 19)
  84                 (void) pci_read_config_dword(pdev, 0x14, (u32 *)&saa9730_base);
  85         printk("saa9730_base = %x\n", saa9730_base);
  86 }
  87
  88 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA9730,
  89          atlas_saa9730_base_fixup);
  90
  91 #endif