/*
 * $Id: prep_pci.c,v 1.35.2.1 1999/07/22 01:49:42 cort Exp $
 * PReP pci functions.
 * Originally by Gary Thomas
 * rewritten and updated by Cort Dougan (cort@cs.nmt.edu)
 *
 * The motherboard routes/maps will disappear shortly. -- Cort
 */

#include <linux/types.h>
#include <linux/string.h>
#include <linux/pci.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/openpic.h>

#include <asm/byteorder.h>
#include <asm/io.h>
#include <asm/ptrace.h>
#include <asm/prom.h>
#include <asm/pci-bridge.h>
#include <asm/residual.h>
#include <asm/processor.h>
#include <asm/irq.h>
#include <asm/machdep.h>

#include "pci.h"
#include "open_pic.h"

#define MAX_DEVNR 22

/* Which PCI interrupt line does a given device [slot] use? */
/* Note: This really should be two dimensional based in slot/pin used */
unsigned char *Motherboard_map;
unsigned char *Motherboard_map_name;

/* How is the 82378 PIRQ mapping setup? */
unsigned char *Motherboard_routes;
void (*Motherboard_non0)(struct pci_dev *);

void Powerplus_Map_Non0(struct pci_dev *);

/* Used for Motorola to store system config register */
static unsigned long	*ProcInfo;

/* Tables for known hardware */   

/* Motorola PowerStackII - Utah */
static char Utah_pci_IRQ_map[23] __prepdata =
{
        0,   /* Slot 0  - unused */
        0,   /* Slot 1  - unused */
        5,   /* Slot 2  - SCSI - NCR825A  */
        0,   /* Slot 3  - unused */
        1,   /* Slot 4  - Ethernet - DEC2114x */
        0,   /* Slot 5  - unused */
        3,   /* Slot 6  - PCI Card slot #1 */
        4,   /* Slot 7  - PCI Card slot #2 */
        5,   /* Slot 8  - PCI Card slot #3 */
        5,   /* Slot 9  - PCI Bridge */
             /* added here in case we ever support PCI bridges */
             /* Secondary PCI bus cards are at slot-9,6 & slot-9,7 */
        0,   /* Slot 10 - unused */
        0,   /* Slot 11 - unused */
        5,   /* Slot 12 - SCSI - NCR825A */
        0,   /* Slot 13 - unused */
        3,   /* Slot 14 - enet */
        0,   /* Slot 15 - unused */
        2,   /* Slot 16 - unused */
        3,   /* Slot 17 - unused */
        5,   /* Slot 18 - unused */
        0,   /* Slot 19 - unused */
        0,   /* Slot 20 - unused */
        0,   /* Slot 21 - unused */
        0,   /* Slot 22 - unused */
};

static char Utah_pci_IRQ_routes[] __prepdata =
{
        0,   /* Line 0 - Unused */
        9,   /* Line 1 */
	10,  /* Line 2 */
        11,  /* Line 3 */
        14,  /* Line 4 */
        15,  /* Line 5 */
};

/* Motorola PowerStackII - Omaha */
/* no integrated SCSI or ethernet */
static char Omaha_pci_IRQ_map[23] __prepdata =
{
        0,   /* Slot 0  - unused */
        0,   /* Slot 1  - unused */
        3,   /* Slot 2  - Winbond EIDE */
        0,   /* Slot 3  - unused */
        0,   /* Slot 4  - unused */
        0,   /* Slot 5  - unused */
        1,   /* Slot 6  - PCI slot 1 */
        2,   /* Slot 7  - PCI slot 2  */
        3,   /* Slot 8  - PCI slot 3 */
        4,   /* Slot 9  - PCI slot 4 */ /* needs indirect access */
        0,   /* Slot 10 - unused */
        0,   /* Slot 11 - unused */
        0,   /* Slot 12 - unused */
        0,   /* Slot 13 - unused */
        0,   /* Slot 14 - unused */
        0,   /* Slot 15 - unused */
        1,   /* Slot 16  - PCI slot 1 */
        2,   /* Slot 17  - PCI slot 2  */
        3,   /* Slot 18  - PCI slot 3 */
        4,   /* Slot 19  - PCI slot 4 */ /* needs indirect access */
        0,
        0,
        0,
};

static char Omaha_pci_IRQ_routes[] __prepdata =
{
        0,   /* Line 0 - Unused */
        9,   /* Line 1 */
        11,  /* Line 2 */
        14,  /* Line 3 */
        15   /* Line 4 */
};

/* Motorola PowerStack */
static char Blackhawk_pci_IRQ_map[19] __prepdata =
{
  	0,	/* Slot 0  - unused */
  	0,	/* Slot 1  - unused */
  	0,	/* Slot 2  - unused */
  	0,	/* Slot 3  - unused */
  	0,	/* Slot 4  - unused */
  	0,	/* Slot 5  - unused */
  	0,	/* Slot 6  - unused */
  	0,	/* Slot 7  - unused */
  	0,	/* Slot 8  - unused */
  	0,	/* Slot 9  - unused */
  	0,	/* Slot 10 - unused */
  	0,	/* Slot 11 - unused */
  	3,	/* Slot 12 - SCSI */
  	0,	/* Slot 13 - unused */
  	1,	/* Slot 14 - Ethernet */
  	0,	/* Slot 15 - unused */
 	1,	/* Slot P7 */
 	2,	/* Slot P6 */
 	3,	/* Slot P5 */
};

static char Blackhawk_pci_IRQ_routes[] __prepdata =
{
   	0,	/* Line 0 - Unused */
   	9,	/* Line 1 */
   	11,	/* Line 2 */
   	15,	/* Line 3 */
   	15	/* Line 4 */
};
   
/* Motorola Mesquite */
static char Mesquite_pci_IRQ_map[23] __prepdata =
{
	0,	/* Slot 0  - unused */
	0,	/* Slot 1  - unused */
	0,	/* Slot 2  - unused */
	0,	/* Slot 3  - unused */
	0,	/* Slot 4  - unused */
	0,	/* Slot 5  - unused */
	0,	/* Slot 6  - unused */
	0,	/* Slot 7  - unused */
	0,	/* Slot 8  - unused */
	0,	/* Slot 9  - unused */
	0,	/* Slot 10 - unxued */
	0x1e,	/* Slot 11 - PCI-ISA/IDE/USB */
	0,	/* Slot 12 - unused */
	0,	/* Slot 13 - unused */
	2,	/* Slot 14 - Ethernet */
	0,	/* Slot 15 - unused */
	3,	/* Slot 16 - PMC */
	0,	/* Slot 17 - unused */
	0,	/* Slot 18 - unused */
	0,	/* Slot 19 - unused */
	0,	/* Slot 20 - unused */
	0,	/* Slot 21 - unused */
	0,	/* Slot 22 - unused */
};

/* Motorola Sitka */
static char Sitka_pci_IRQ_map[21] __prepdata =
{
	0,      /* Slot 0  - unused */
	0,      /* Slot 1  - unused */
	0,      /* Slot 2  - unused */
	0,      /* Slot 3  - unused */
	0,      /* Slot 4  - unused */
	0,      /* Slot 5  - unused */
	0,      /* Slot 6  - unused */
	0,      /* Slot 7  - unused */
	0,      /* Slot 8  - unused */
	0,      /* Slot 9  - unused */
	0,      /* Slot 10 - unxued */
	0x1e,   /* Slot 11 - PCI-ISA/IDE/USB */
	0,      /* Slot 12 - unused */
	0,      /* Slot 13 - unused */
	2,      /* Slot 14 - Ethernet */
	0,      /* Slot 15 - unused */
	9,      /* Slot 16 - PMC 1  */
	12,     /* Slot 17 - PMC 2  */
	0,      /* Slot 18 - unused */
	0,      /* Slot 19 - unused */
	4,      /* Slot 20 - NT P2P bridge */
};

/* Motorola MTX */
static char MTX_pci_IRQ_map[23] __prepdata =
{
	0,	/* Slot 0  - unused */
	0,	/* Slot 1  - unused */
	0,	/* Slot 2  - unused */
	0,	/* Slot 3  - unused */
	0,	/* Slot 4  - unused */
	0,	/* Slot 5  - unused */
	0,	/* Slot 6  - unused */
	0,	/* Slot 7  - unused */
	0,	/* Slot 8  - unused */
	0,	/* Slot 9  - unused */
	0,	/* Slot 10 - unused */
	0x1e,	/* Slot 11 - PCI-ISA/IDE/USB */
	3,	/* Slot 12 - SCSI */
	0,	/* Slot 13 - unused */
	2,	/* Slot 14 - Ethernet */
	0,	/* Slot 15 - unused */
	9,      /* Slot 16 - PCI/PMC slot 1 */
	10,     /* Slot 17 - PCI/PMC slot 2 */
	11,     /* Slot 18 - PCI slot 3 */
	0,	/* Slot 19 - unused */
	0,	/* Slot 20 - unused */
	0,	/* Slot 21 - unused */
	0,	/* Slot 22 - unused */
};

/* Motorola MTX Plus */
/* Secondary bus interrupt routing is not supported yet */
static char MTXplus_pci_IRQ_map[23] __prepdata =
{
        0,      /* Slot 0  - unused */
        0,      /* Slot 1  - unused */
        0,      /* Slot 2  - unused */
        0,      /* Slot 3  - unused */
        0,      /* Slot 4  - unused */
        0,      /* Slot 5  - unused */
        0,      /* Slot 6  - unused */
        0,      /* Slot 7  - unused */
        0,      /* Slot 8  - unused */
        0,      /* Slot 9  - unused */
        0,      /* Slot 10 - unused */
        0x1e,   /* Slot 11 - PCI-ISA/IDE/USB */
        3,      /* Slot 12 - SCSI */
        0,      /* Slot 13 - unused */
        2,      /* Slot 14 - Ethernet 1 */
        0,      /* Slot 15 - unused */
        9,      /* Slot 16 - PCI slot 1P */
        10,     /* Slot 17 - PCI slot 2P */
        11,     /* Slot 18 - PCI slot 3P */
        10,     /* Slot 19 - Ethernet 2 */
        0,      /* Slot 20 - P2P Bridge */
        0,      /* Slot 21 - unused */
        0,      /* Slot 22 - unused */
};

static char Raven_pci_IRQ_routes[] __prepdata =
{
   	0,	/* This is a dummy structure */
};
   
/* Motorola MVME16xx */
static char Genesis_pci_IRQ_map[16] __prepdata =
{
  	0,	/* Slot 0  - unused */
  	0,	/* Slot 1  - unused */
  	0,	/* Slot 2  - unused */
  	0,	/* Slot 3  - unused */
  	0,	/* Slot 4  - unused */
  	0,	/* Slot 5  - unused */
  	0,	/* Slot 6  - unused */
  	0,	/* Slot 7  - unused */
  	0,	/* Slot 8  - unused */
  	0,	/* Slot 9  - unused */
  	0,	/* Slot 10 - unused */
  	0,	/* Slot 11 - unused */
  	3,	/* Slot 12 - SCSI */
  	0,	/* Slot 13 - unused */
  	1,	/* Slot 14 - Ethernet */
  	0,	/* Slot 15 - unused */
};

static char Genesis_pci_IRQ_routes[] __prepdata =
{
   	0,	/* Line 0 - Unused */
   	10,	/* Line 1 */
   	11,	/* Line 2 */
   	14,	/* Line 3 */
   	15	/* Line 4 */
};
   
static char Genesis2_pci_IRQ_map[23] __prepdata =
{
	0,	/* Slot 0  - unused */
	0,	/* Slot 1  - unused */
	0,	/* Slot 2  - unused */
	0,	/* Slot 3  - unused */
	0,	/* Slot 4  - unused */
	0,	/* Slot 5  - unused */
	0,	/* Slot 6  - unused */
	0,	/* Slot 7  - unused */
	0,	/* Slot 8  - unused */
	0,	/* Slot 9  - unused */
	0,	/* Slot 10 - Ethernet */
	0,	/* Slot 11 - Universe PCI - VME Bridge */
	3,	/* Slot 12 - unused */
	5,	/* Slot 13 - VME */
	2,	/* Slot 14 - SCSI */
	0,	/* Slot 15 - graphics on 3600 */
	9,	/* Slot 16 - PMC */
	12,	/* Slot 17 - pci */
	11,	/* Slot 18 - pci */
	10,	/* Slot 19 - pci */
	0,	/* Slot 20 - pci */
	0,	/* Slot 21 - unused */
	0,	/* Slot 22 - unused */
};

/* Motorola Series-E */
static char Comet_pci_IRQ_map[23] __prepdata =
{
  	0,	/* Slot 0  - unused */
  	0,	/* Slot 1  - unused */
  	0,	/* Slot 2  - unused */
  	0,	/* Slot 3  - unused */
  	0,	/* Slot 4  - unused */
  	0,	/* Slot 5  - unused */
  	0,	/* Slot 6  - unused */
  	0,	/* Slot 7  - unused */
  	0,	/* Slot 8  - unused */
  	0,	/* Slot 9  - unused */
  	0,	/* Slot 10 - unused */
  	0,	/* Slot 11 - unused */
  	3,	/* Slot 12 - SCSI */
  	0,	/* Slot 13 - unused */
  	1,	/* Slot 14 - Ethernet */
  	0,	/* Slot 15 - unused */
	1,	/* Slot 16 - PCI slot 1 */
	2,	/* Slot 17 - PCI slot 2 */
	3,	/* Slot 18 - PCI slot 3 */
	4,	/* Slot 19 - PCI bridge */
	0,
	0,
	0,
};

static char Comet_pci_IRQ_routes[] __prepdata =
{
   	0,	/* Line 0 - Unused */
   	10,	/* Line 1 */
   	11,	/* Line 2 */
   	14,	/* Line 3 */
   	15	/* Line 4 */
};

/* Motorola Series-EX */
static char Comet2_pci_IRQ_map[23] __prepdata =
{
	0,	/* Slot 0  - unused */
	0,	/* Slot 1  - unused */
	3,	/* Slot 2  - SCSI - NCR825A */
	0,	/* Slot 3  - unused */
	1,	/* Slot 4  - Ethernet - DEC2104X */
	0,	/* Slot 5  - unused */
	1,	/* Slot 6  - PCI slot 1 */
	2,	/* Slot 7  - PCI slot 2 */
	3,	/* Slot 8  - PCI slot 3 */
	4,	/* Slot 9  - PCI bridge  */
	0,	/* Slot 10 - unused */
	0,	/* Slot 11 - unused */
	3,	/* Slot 12 - SCSI - NCR825A */
	0,	/* Slot 13 - unused */
	1,	/* Slot 14 - Ethernet - DEC2104X */
	0,	/* Slot 15 - unused */
	1,	/* Slot 16 - PCI slot 1 */
	2,	/* Slot 17 - PCI slot 2 */
	3,	/* Slot 18 - PCI slot 3 */
	4,	/* Slot 19 - PCI bridge */
	0,
	0,
	0,
};

static char Comet2_pci_IRQ_routes[] __prepdata =
{
	0,	/* Line 0 - Unused */
	10,	/* Line 1 */
	11,	/* Line 2 */
	14,	/* Line 3 */
	15,	/* Line 4 */
};

/*
 * ibm 830 (and 850?).
 * This is actually based on the Carolina motherboard
 * -- Cort
 */
static char ibm8xx_pci_IRQ_map[23] __prepdata = {
        0, /* Slot 0  - unused */
        0, /* Slot 1  - unused */
        0, /* Slot 2  - unused */
        0, /* Slot 3  - unused */
        0, /* Slot 4  - unused */
        0, /* Slot 5  - unused */
        0, /* Slot 6  - unused */
        0, /* Slot 7  - unused */
        0, /* Slot 8  - unused */
        0, /* Slot 9  - unused */
        0, /* Slot 10 - unused */
        0, /* Slot 11 - FireCoral */
        4, /* Slot 12 - Ethernet  PCIINTD# */
        2, /* Slot 13 - PCI Slot #2 */
        2, /* Slot 14 - S3 Video PCIINTD# */
        0, /* Slot 15 - onboard SCSI (INDI) [1] */
        3, /* Slot 16 - NCR58C810 RS6000 Only PCIINTC# */
        0, /* Slot 17 - unused */
        2, /* Slot 18 - PCI Slot 2 PCIINTx# (See below) */
        0, /* Slot 19 - unused */
        0, /* Slot 20 - unused */
        0, /* Slot 21 - unused */
        2, /* Slot 22 - PCI slot 1 PCIINTx# (See below) */
};

static char ibm8xx_pci_IRQ_routes[] __prepdata = {
        0,      /* Line 0 - unused */
        13,     /* Line 1 */
        10,     /* Line 2 */
        15,     /* Line 3 */
        15,     /* Line 4 */
};

/*
 * a 6015 ibm board
 * -- Cort
 */
static char ibm6015_pci_IRQ_map[23] __prepdata = {
        0, /* Slot 0  - unused */
        0, /* Slot 1  - unused */
        0, /* Slot 2  - unused */
        0, /* Slot 3  - unused */
        0, /* Slot 4  - unused */
        0, /* Slot 5  - unused */
        0, /* Slot 6  - unused */
        0, /* Slot 7  - unused */
        0, /* Slot 8  - unused */
        0, /* Slot 9  - unused */
        0, /* Slot 10 - unused */
        0, /* Slot 11 -  */
        1, /* Slot 12 - SCSI */
        2, /* Slot 13 -  */
        2, /* Slot 14 -  */
        1, /* Slot 15 -  */
        1, /* Slot 16 -  */
        0, /* Slot 17 -  */
        2, /* Slot 18 -  */
        0, /* Slot 19 -  */
        0, /* Slot 20 -  */
        0, /* Slot 21 -  */
        2, /* Slot 22 -  */
};
static char ibm6015_pci_IRQ_routes[] __prepdata = {
        0,      /* Line 0 - unused */
        13,     /* Line 1 */
        10,     /* Line 2 */
        15,     /* Line 3 */
        15,     /* Line 4 */
};


/* IBM Nobis and 850 */
static char Nobis_pci_IRQ_map[23] __prepdata ={
        0, /* Slot 0  - unused */
        0, /* Slot 1  - unused */
        0, /* Slot 2  - unused */
        0, /* Slot 3  - unused */
        0, /* Slot 4  - unused */
        0, /* Slot 5  - unused */
        0, /* Slot 6  - unused */
        0, /* Slot 7  - unused */
        0, /* Slot 8  - unused */
        0, /* Slot 9  - unused */
        0, /* Slot 10 - unused */
        0, /* Slot 11 - unused */
        3, /* Slot 12 - SCSI */
        0, /* Slot 13 - unused */
        0, /* Slot 14 - unused */
        0, /* Slot 15 - unused */
};

static char Nobis_pci_IRQ_routes[] __prepdata = {
        0, /* Line 0 - Unused */
        13, /* Line 1 */
        13, /* Line 2 */
        13, /* Line 3 */
        13      /* Line 4 */
};

/* Motorola PowerPlus architecture PCI IRQ tables */
/* Interrupt line values for INTA-D on primary/secondary MPIC inputs */

struct powerplus_irq_list
{
	unsigned char primary[4];	/* INT A-D */
	unsigned char secondary[4];	/* INT A-D */
};

/*
 * For standard PowerPlus boards, bus 0 PCI INTs A-D are routed to
 * OpenPIC inputs 9-12.  PCI INTs A-D from the on board P2P bridge
 * are routed to OpenPIC inputs 5-8.  These values are offset by 
 * 16 in the table to reflect the Linux kernel interrupt value.
 */
struct powerplus_irq_list Powerplus_pci_IRQ_list =
{
	{25, 26, 27, 28},
	{21, 22, 23, 24}
};

/* 
 * For the MCP750 (system slot board), bus 0 PCI INTs A-D are routed
 * to OpenPIC inputs 8-11.  PCI INTs A-D from the on board P2P bridge
 * are routed to OpenPIC inputs 12-15.  These values are offset by 16
 * in the table to reflect the Linux kernel interrupt value.
 */
struct powerplus_irq_list Mesquite_pci_IRQ_list =
{
	{24, 25, 26, 27},
	{28, 29, 30, 31}
};

/*
 * This table represents the standard PCI swizzle defined in the
 * PCI bus specification.
 */ 
static unsigned char prep_pci_intpins[4][4] =
{
        { 1, 2, 3, 4},  /* Buses 0, 4, 8, ... */
        { 2, 3, 4, 1},  /* Buses 1, 5, 9, ... */
        { 3, 4, 1, 2},  /* Buses 2, 6, 10 ... */
        { 4, 1, 2, 3},  /* Buses 3, 7, 11 ... */
};

/* We have to turn on LEVEL mode for changed IRQ's */
/* All PCI IRQ's need to be level mode, so this should be something
 * other than hard-coded as well... IRQ's are individually mappable
 * to either edge or level.
 */
#define CAROLINA_IRQ_EDGE_MASK_LO   0x00  /* IRQ's 0-7  */
#define CAROLINA_IRQ_EDGE_MASK_HI   0xA4  /* IRQ's 8-15 [10,13,15] */

/*
 * 8259 edge/level control definitions
 */
#define ISA8259_M_ELCR 0x4d0
#define ISA8259_S_ELCR 0x4d1

#define ELCRS_INT15_LVL         0x80
#define ELCRS_INT14_LVL         0x40
#define ELCRS_INT12_LVL         0x10
#define ELCRS_INT11_LVL         0x08
#define ELCRS_INT10_LVL         0x04
#define ELCRS_INT9_LVL          0x02
#define ELCRS_INT8_LVL          0x01
#define ELCRM_INT7_LVL          0x80
#define ELCRM_INT5_LVL          0x20

#define CFGPTR(dev) (0x80800000 | (1<<(dev>>3)) | ((dev&7)<<8) | offset)
#define DEVNO(dev)  (dev>>3)                                  

__prep
int
prep_pcibios_read_config_dword (unsigned char bus,
			   unsigned char dev, unsigned char offset, unsigned int *val)
{
	unsigned long _val;                                          
	unsigned long *ptr;

	if ((bus != 0) || (DEVNO(dev) > MAX_DEVNR))
	{                   
		*val = 0xFFFFFFFF;
		return PCIBIOS_DEVICE_NOT_FOUND;    
	} else                                                                
	{
		ptr = (unsigned long *)CFGPTR(dev);
		_val = le32_to_cpu(*ptr);
	}
	*val = _val;
	return PCIBIOS_SUCCESSFUL;
}

__prep
int
prep_pcibios_read_config_word (unsigned char bus,
			  unsigned char dev, unsigned char offset, unsigned short *val)
{
	unsigned short _val;                                          
	unsigned short *ptr;

	if ((bus != 0) || (DEVNO(dev) > MAX_DEVNR))
	{                   
		*val = 0xFFFF;
		return PCIBIOS_DEVICE_NOT_FOUND;    
	} else                                                                
	{
		ptr = (unsigned short *)CFGPTR(dev);
		_val = le16_to_cpu(*ptr);
	}
	*val = _val;
	return PCIBIOS_SUCCESSFUL;
}

__prep
int
prep_pcibios_read_config_byte (unsigned char bus,
			  unsigned char dev, unsigned char offset, unsigned char *val)
{
	unsigned char _val;                                          
	unsigned char *ptr;

	if ((bus != 0) || (DEVNO(dev) > MAX_DEVNR))
	{                   
		*val = 0xFF;
		return PCIBIOS_DEVICE_NOT_FOUND;    
	} else                                                                
	{
		ptr = (unsigned char *)CFGPTR(dev);
		_val = *ptr;
	}
	*val = _val;
	return PCIBIOS_SUCCESSFUL;
}

__prep
int
prep_pcibios_write_config_dword (unsigned char bus,
			    unsigned char dev, unsigned char offset, unsigned int val)
{
	unsigned long _val;
	unsigned long *ptr;

	_val = le32_to_cpu(val);
	if ((bus != 0) || (DEVNO(dev) > MAX_DEVNR))
	{
		return PCIBIOS_DEVICE_NOT_FOUND;
	} else
	{
		ptr = (unsigned long *)CFGPTR(dev);
		*ptr = _val;
	}
	return PCIBIOS_SUCCESSFUL;
}

__prep
int
prep_pcibios_write_config_word (unsigned char bus,
			   unsigned char dev, unsigned char offset, unsigned short val)
{
	unsigned short _val;
	unsigned short *ptr;

	_val = le16_to_cpu(val);
	if ((bus != 0) || (DEVNO(dev) > MAX_DEVNR))
	{
		return PCIBIOS_DEVICE_NOT_FOUND;
	} else
	{
		ptr = (unsigned short *)CFGPTR(dev);
		*ptr = _val;
	}
	return PCIBIOS_SUCCESSFUL;
}

__prep
int
prep_pcibios_write_config_byte (unsigned char bus,
			   unsigned char dev, unsigned char offset, unsigned char val)
{
	unsigned char _val;
	unsigned char *ptr;

	_val = val;
	if ((bus != 0) || (DEVNO(dev) > MAX_DEVNR))
	{
		return PCIBIOS_DEVICE_NOT_FOUND;
	} else
	{
		ptr = (unsigned char *)CFGPTR(dev);
		*ptr = _val;
	}
	return PCIBIOS_SUCCESSFUL;
}

#define MOTOROLA_CPUTYPE_REG	0x800
#define MOTOROLA_BASETYPE_REG	0x803
#define MPIC_RAVEN_ID		0x48010000
#define	MPIC_HAWK_ID		0x48030000
#define	MOT_PROC2_BIT		0x800

static u_char mvme2600_openpic_initsenses[] __initdata = {
    1,	/* MVME2600_INT_SIO */
    0,	/* MVME2600_INT_FALCN_ECC_ERR */
    1,	/* MVME2600_INT_PCI_ETHERNET */
    1,	/* MVME2600_INT_PCI_SCSI */
    1,	/* MVME2600_INT_PCI_GRAPHICS */
    1,	/* MVME2600_INT_PCI_VME0 */
    1,	/* MVME2600_INT_PCI_VME1 */
    1,	/* MVME2600_INT_PCI_VME2 */
    1,	/* MVME2600_INT_PCI_VME3 */
    1,	/* MVME2600_INT_PCI_INTA */
    1,	/* MVME2600_INT_PCI_INTB */
    1,	/* MVME2600_INT_PCI_INTC */
    1,	/* MVME2600_INT_PCI_INTD */
    1,	/* MVME2600_INT_LM_SIG0 */
    1,	/* MVME2600_INT_LM_SIG1 */
};

#define MOT_RAVEN_PRESENT	0x1
#define MOT_HAWK_PRESENT	0x2

int mot_entry = -1;

int MotMPIC = 0;
int mot_multi = 0;

__initfunc(int raven_init(void))
{
	unsigned int	devid;
	unsigned int	pci_membase;
	unsigned char	base_mod;

	/* Check to see if the Raven chip exists. */
	if ( _prep_type != _PREP_Motorola) {
		OpenPIC = NULL;
		return 0;
	}

	/* Check to see if this board is a type that might have a Raven. */
	if ((inb(MOTOROLA_CPUTYPE_REG) & 0xF0) != 0xE0) {
		OpenPIC = NULL;
		return 0;
	}

	/* Check the first PCI device to see if it is a Raven. */
	pcibios_read_config_dword(0, 0, PCI_VENDOR_ID, &devid);

	switch (devid & 0xffff0000) {
	case MPIC_RAVEN_ID:
		MotMPIC = MOT_RAVEN_PRESENT;
		break;
	case MPIC_HAWK_ID:
		MotMPIC = MOT_HAWK_PRESENT;
		break;
	default:
		OpenPIC = NULL;
		return 0;
	}


	/* Read the memory base register. */
	pcibios_read_config_dword(0, 0, PCI_BASE_ADDRESS_1, &pci_membase);

	if (pci_membase == 0) {
		OpenPIC = NULL;
		return 0;
	}

	/* Map the Raven MPIC registers to virtual memory. */
	OpenPIC = (struct OpenPIC *)ioremap(pci_membase+0xC0000000, 0x22000);

	OpenPIC_InitSenses = mvme2600_openpic_initsenses;
	OpenPIC_NumInitSenses = sizeof(mvme2600_openpic_initsenses);

	ppc_md.do_IRQ = open_pic_do_IRQ;
	
	/* If raven is present on Motorola store the system config register
	 * for later use.
	 */
	ProcInfo = (unsigned long *)ioremap(0xfef80400, 4);

	/* Indicate to system if this is a multiprocessor board */
	if (!(*ProcInfo & MOT_PROC2_BIT)) {
		mot_multi = 1;
	}

	/*
	 * If a Motorola MVME2300, 2400, or MCPN750 board is detected
	 * disable keyboard controller initialization to avoid system
	 * hangs.
	 */
	base_mod = inb(MOTOROLA_BASETYPE_REG);
	if ((MotMPIC == MOT_HAWK_PRESENT) || (base_mod == 0xF9) ||
	    (base_mod == 0xFA) || (base_mod == 0xE1)) {
		ppc_md.kbd_leds	= NULL; 
		ppc_md.kbd_init_hw = NULL; 
	}

	return 1;
}

struct mot_info {
	int		cpu_type;	/* 0x100 mask assumes for Raven and Hawk boards that the level/edge are set */
					/* 0x200 if this board has a Hawk chip. */
	int		base_type;
	int		max_cpu;	/* ored with 0x80 if this board should be checked for multi CPU */
	const char	*name;
	unsigned char	*map;
	unsigned char	*routes;
	void		(*map_non0_bus)(struct pci_dev *);	/* For boards with more than bus 0 devices. */
	struct powerplus_irq_list *pci_irq_list; /* List of PCI MPIC inputs */
	unsigned char	secondary_bridge_devfn;	/* devfn of secondary bus transparent bridge */
} mot_info[] = {
	{0x300, 0x00, 0x00, "MVME 2400",			Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x010, 0x00, 0x00, "Genesis",				Genesis_pci_IRQ_map,	Genesis_pci_IRQ_routes, Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x020, 0x00, 0x00, "Powerstack (Series E)",		Comet_pci_IRQ_map,	Comet_pci_IRQ_routes,	NULL, NULL, 0x00},
	{0x040, 0x00, 0x00, "Blackhawk (Powerstack)",		Blackhawk_pci_IRQ_map,	Blackhawk_pci_IRQ_routes, NULL, NULL, 0x00},
	{0x050, 0x00, 0x00, "Omaha (PowerStack II Pro3000)",	Omaha_pci_IRQ_map,	Omaha_pci_IRQ_routes,	NULL, NULL, 0x00},
	{0x060, 0x00, 0x00, "Utah (Powerstack II Pro4000)",	Utah_pci_IRQ_map,	Utah_pci_IRQ_routes,	NULL, NULL, 0x00},
	{0x0A0, 0x00, 0x00, "Powerstack (Series EX)",		Comet2_pci_IRQ_map,	Comet2_pci_IRQ_routes,	NULL, NULL, 0x00},
	{0x1E0, 0xE0, 0x00, "Mesquite cPCI (MCP750)",		Mesquite_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Mesquite_pci_IRQ_list, 0x00},
	{0x1E0, 0xE1, 0x00, "Sitka cPCI (MCPN750)",		Sitka_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xE2, 0x00, "Mesquite cPCI (MCP750) w/ HAC",	Mesquite_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Mesquite_pci_IRQ_list, 0xC0},
	{0x1E0, 0xF6, 0x80, "MTX Plus",				MTXplus_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xA0},
	{0x1E0, 0xF6, 0x81, "Dual MTX Plus",			MTXplus_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0xA0},
	{0x1E0, 0xF7, 0x80, "MTX wo/ Parallel Port",		MTX_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xF7, 0x81, "Dual MTX wo/ Parallel Port",	MTX_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xF8, 0x80, "MTX w/ Parallel Port",		MTX_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xF8, 0x81, "Dual MTX w/ Parallel Port",	MTX_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xF9, 0x00, "MVME 2300",			Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xFA, 0x00, "MVME 2300SC/2600",			Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xFB, 0x00, "MVME 2600 with MVME712M",		Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xFC, 0x00, "MVME 2600/2700 with MVME761",	Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xFD, 0x80, "MVME 3600 with MVME712M",		Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xFD, 0x81, "MVME 4600 with MVME712M",		Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xFE, 0x80, "MVME 3600 with MVME761",		Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xFE, 0x81, "MVME 4600 with MVME761",		Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes,	Powerplus_Map_Non0, &Powerplus_pci_IRQ_list, 0x00},
	{0x1E0, 0xFF, 0x00, "MVME 1600-001 or 1600-011",	Genesis2_pci_IRQ_map,	Raven_pci_IRQ_routes,	NULL, NULL, 0x00},
	{0x000, 0x00, 0x00, "",					NULL,			NULL,	NULL, 0x00}
};

__initfunc(unsigned long prep_route_pci_interrupts(void))
{
	unsigned char *ibc_pirq = (unsigned char *)0x80800860;
	unsigned char *ibc_pcicon = (unsigned char *)0x80800840;
	int i;
	
	if ( _prep_type == _PREP_Motorola)
	{
		unsigned short irq_mode;
		unsigned char  cpu_type;
		unsigned char  base_mod;
		int	       entry;

		cpu_type = inb(MOTOROLA_CPUTYPE_REG) & 0xF0;
		base_mod = inb(MOTOROLA_BASETYPE_REG);

		for (entry = 0; mot_info[entry].cpu_type != 0; entry++) {
			if (mot_info[entry].cpu_type & 0x200) {		 	/* Check for Hawk chip */
				if (!(MotMPIC & MOT_HAWK_PRESENT))
					continue;
			} else {						/* Check non hawk boards */
				if ((mot_info[entry].cpu_type & 0xff) != cpu_type)
					continue;

				if (mot_info[entry].base_type == 0) {
					mot_entry = entry;
					break;
				}

				if (mot_info[entry].base_type != base_mod)
					continue;
			}

			if (!(mot_info[entry].max_cpu & 0x80)) {
				mot_entry = entry;
				break;
			}

			/* processor 1 not present and max processor zero indicated */
			if ((*ProcInfo & MOT_PROC2_BIT) && !(mot_info[entry].max_cpu & 0x7f)) {
				mot_entry = entry;
				break;
			}

			/* processor 1 present and max processor zero indicated */
			if (!(*ProcInfo & MOT_PROC2_BIT) && (mot_info[entry].max_cpu & 0x7f)) {
				mot_entry = entry;
				break;
			}
		}

		if (mot_entry == -1) 	/* No particular cpu type found - assume Blackhawk */
			mot_entry = 3;

		Motherboard_map_name = (unsigned char *)mot_info[mot_entry].name;
		Motherboard_map = mot_info[mot_entry].map;
		Motherboard_routes = mot_info[mot_entry].routes;
		Motherboard_non0 = mot_info[mot_entry].map_non0_bus;

		if (!(mot_info[entry].cpu_type & 0x100)) {
			/* AJF adjust level/edge control according to routes */
			irq_mode = 0;
			for (i = 1;  i <= 4;  i++)
			{
				irq_mode |= ( 1 << Motherboard_routes[i] );
			}
			outb( irq_mode & 0xff, 0x4d0 );
			outb( (irq_mode >> 8) & 0xff, 0x4d1 );
		}
	} else if ( _prep_type == _PREP_IBM )
	{
		unsigned char pl_id;
		/*
		 * my carolina is 0xf0
		 * 6015 has 0xfc
		 * -- Cort
		 */
		printk("IBM ID: %08x\n", inb(0x0852));
		switch(inb(0x0852))
		{
		case 0xff:
			Motherboard_map_name = "IBM 850/860 Portable\n";
			Motherboard_map = Nobis_pci_IRQ_map;
			Motherboard_routes = Nobis_pci_IRQ_routes;
			break;
		case 0xfc:
			Motherboard_map_name = "IBM 6015";
			Motherboard_map = ibm6015_pci_IRQ_map;
			Motherboard_routes = ibm6015_pci_IRQ_routes;
			break;			
		default:
			Motherboard_map_name = "IBM 8xx (Carolina)";
			Motherboard_map = ibm8xx_pci_IRQ_map;
			Motherboard_routes = ibm8xx_pci_IRQ_routes;
			break;
		}

		/*printk("Changing IRQ mode\n");*/
		pl_id=inb(0x04d0);
		/*printk("Low mask is %#0x\n", pl_id);*/
		outb(pl_id|CAROLINA_IRQ_EDGE_MASK_LO, 0x04d0);
		
		pl_id=inb(0x04d1);
		/*printk("Hi mask is  %#0x\n", pl_id);*/
		outb(pl_id|CAROLINA_IRQ_EDGE_MASK_HI, 0x04d1);
		pl_id=inb(0x04d1);
		/*printk("Hi mask now %#0x\n", pl_id);*/
	} else if ( _prep_type == _PREP_Radstone )
	{
		unsigned char ucElcrM, ucElcrS;

		/*
		 * Set up edge/level
		 */
		switch(ucSystemType)
		{
			case RS_SYS_TYPE_PPC1:
			{
				if(ucBoardRevMaj<5)
				{
					ucElcrS=ELCRS_INT15_LVL;
				}
				else
				{
					ucElcrS=ELCRS_INT9_LVL |
					        ELCRS_INT11_LVL |
					        ELCRS_INT14_LVL |
					        ELCRS_INT15_LVL;
				}
				ucElcrM=ELCRM_INT5_LVL | ELCRM_INT7_LVL;
				break;
			}

			case RS_SYS_TYPE_PPC1a:
			{
				ucElcrS=ELCRS_INT9_LVL |
				        ELCRS_INT11_LVL |
				        ELCRS_INT14_LVL |
				        ELCRS_INT15_LVL;
				ucElcrM=ELCRM_INT5_LVL;
				break;
			}

			case RS_SYS_TYPE_PPC2:
			case RS_SYS_TYPE_PPC2a:
			case RS_SYS_TYPE_PPC2ep:
			case RS_SYS_TYPE_PPC4:
			case RS_SYS_TYPE_PPC4a:
			default:
			{
				ucElcrS=ELCRS_INT9_LVL |
				        ELCRS_INT10_LVL |
				        ELCRS_INT11_LVL |
				        ELCRS_INT14_LVL |
				        ELCRS_INT15_LVL;
				ucElcrM=ELCRM_INT5_LVL |
				        ELCRM_INT7_LVL;
				break;
			}
		}

		/*
		 * Write edge/level selection
		 */
		outb(ucElcrS, ISA8259_S_ELCR);
		outb(ucElcrM, ISA8259_M_ELCR);

		/*
		 * Radstone boards have PCI interrupts all set up
		 * so leave well alone
		 */
		return 0;
	} else
	{
		printk("No known machine pci routing!\n");
		return -1;
	}
	
	/* Set up mapping from slots */
	for (i = 1;  i <= 4;  i++)
	{
		ibc_pirq[i-1] = Motherboard_routes[i];
	}
	/* Enable PCI interrupts */
	*ibc_pcicon |= 0x20;
	return 0;
}

/*
 * Remove a device from the kernel PCI device list based on its 
 * devfn identifier.
 */
__initfunc(
void
prep_exclude_pci_device(unsigned char devfn)
)
{
	struct pci_dev *dev, *pdev = NULL;

	/* Walk the pci device list */
	for(dev=pci_devices; dev; dev=dev->next) {
		if (dev->devfn == devfn)
		{
			/*
			 * If we find a matching device, adjust
			 * the list to remove the device.
			 */
			if (pdev != NULL)
				pdev->next = dev->next;
			else
				pci_devices = dev->next;

			break;
		}
		pdev = dev;
	}
}

void
Powerplus_Map_Non0(struct pci_dev *dev)
{
	struct pci_bus  *pbus;          /* Parent bus structure pointer */
	struct pci_dev	*tdev;		/* Temporary device structure */
        unsigned int    devnum;         /* Accumulated device number */
        unsigned char   intline;        /* Linux interrupt value */
	unsigned char	intpin;		/* PCI interrupt pin */
 
	/* Check for valid PCI dev pointer */
	if (dev == NULL) return;

	/* Fill our temporary device, and get the device number */
	*tdev = *dev;
	devnum = PCI_SLOT(tdev->devfn);

	/* Read the interrupt pin of the device and adjust for indexing */
	pcibios_read_config_byte(tdev->bus->number, tdev->devfn,
				PCI_INTERRUPT_PIN, &intpin);

	/* If device doesn't request an interrupt, return */
	if ( (intpin < 1) || (intpin > 4) )
		return;

	intpin--;

	/* Walk up to bus 0, adjusting the interrupt pin for the standard
	   PCI bus swizzle. */
	do {
		intpin = (prep_pci_intpins[devnum % 4][intpin]) - 1;
		pbus = tdev->bus;        /* up one level */
		tdev = pbus->self;
		devnum = PCI_SLOT(tdev->devfn);
	} while(tdev->bus->number);

	/* Use the primary interrupt inputs by default */
	intline = mot_info[mot_entry].pci_irq_list->primary[intpin];

	/* If the board has secondary interrupt inputs, walk the bus and
	   note the devfn of the bridge from bus 0.  If it is the same as
	   the devfn of the bus bridge with secondary inputs, use those. */
	if (mot_info[mot_entry].secondary_bridge_devfn)
	{
		pbus = dev->bus;
 
		while (pbus->primary != 0)
			pbus = pbus->parent;
 
		if ((pbus->self)->devfn == mot_info[mot_entry].secondary_bridge_devfn)
			intline = mot_info[mot_entry].pci_irq_list->secondary[intpin];
	}
	
	/* Write calculated interrupt value to header and device list */
	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, (u8)intline);
	dev->irq = intline;
}

int motopenpic_to_irq(int n)
{
       if (n & 0xF0) {
               return (n & 0x0F);
       } else {
               return(n+open_pic.irq_offset);
       }
}

void prep_pib_init(void)
{
unsigned char   reg;
unsigned short  short_reg;

struct pci_dev *dev = NULL;

	if (( _prep_type == _PREP_Motorola) && (OpenPIC)) {
		/*
		 * Perform specific configuration for the Via Tech or
		 * or Winbond PCI-ISA-Bridge part.
		 */
		if ((dev = pci_find_device(PCI_VENDOR_ID_VIA, 
					PCI_DEVICE_ID_VIA_82C586_1, dev))) {
			/*
			 * PPCBUG does not set the enable bits
			 * for the IDE device. Force them on here.
			 */
			pcibios_read_config_byte(dev->bus->number, 
					dev->devfn, 0x40, &reg);

			reg |= 0x03; /* IDE: Chip Enable Bits */
			pcibios_write_config_byte(dev->bus->number, 
					dev->devfn, 0x40, reg);

		} else if ((dev = pci_find_device(PCI_VENDOR_ID_WINBOND, 
					PCI_DEVICE_ID_WINBOND_83C553, dev))) {
			/*
			 * Clear the PCI Interrupt Routing Control Register.
			 */
			short_reg = 0x0000;
			pcibios_write_config_word(dev->bus->number, 
					dev->devfn, 0x44, short_reg);
		}
	}
	if ((dev = pci_find_device(PCI_VENDOR_ID_WINBOND,
				   PCI_DEVICE_ID_WINBOND_82C105, dev))){
		if (OpenPIC){
			/* Disable LEGIRQ mode so PCI INTs are routed to
			   the 8259 */
			pci_write_config_dword(dev, 0x40, 0x10ff00a1);
		} else {
			/* Enable LEGIRQ for PCI INT -> 8259 IRQ routing */
			pci_write_config_dword(dev, 0x40, 0x10ff08a1);
		}
	}
}
__initfunc(
void
prep_pcibios_fixup(void))
{
extern unsigned char *Motherboard_map;
extern unsigned char *Motherboard_routes;
unsigned char	i;
struct pci_dev  *dev;

	if (_prep_type == _PREP_Radstone) {
		printk("Radstone boards require no PCI fixups\n");
		return;
	}

	prep_route_pci_interrupts();

	/*
	 * If MTX+, exclude the SL82C105 IDE controller so the driver
	 * doesn't hang.
	 */
	if ( _prep_type == _PREP_Motorola )
		if ( strstr(mot_info[mot_entry].name, "MTX Plus") )
			/* On MTX+, SL82C105 is at IDSEL 0xb function 0x1 */
			prep_exclude_pci_device(PCI_DEVFN(0xb, 0x1));

	prep_pib_init();

	printk("Setting PCI interrupts for a \"%s\"\n", Motherboard_map_name);

	if (OpenPIC) {

	    /* PCI interrupts are controlled by the OpenPIC */
	    for(dev=pci_devices; dev; dev=dev->next) {
		if (dev->bus->number == 0) {
		    dev->irq = 
		       motopenpic_to_irq(Motherboard_map[PCI_SLOT(dev->devfn)]);

		    pcibios_write_config_byte(dev->bus->number, dev->devfn, 
					      PCI_INTERRUPT_LINE, dev->irq);
		} else {
			if (Motherboard_non0 != NULL)
				Motherboard_non0(dev);
		}

	    }
	return;
	}

	for(dev=pci_devices; dev; dev=dev->next) {
		/*
		 * Use our old hard-coded kludge to figure out what
		 * irq this device uses.  This is necessary on things
		 * without residual data. -- Cort
		 */
		unsigned char d = PCI_SLOT(dev->devfn);
		dev->irq = Motherboard_routes[Motherboard_map[d]];

		for ( i = 0 ; i <= 5 ; i++ ) {
			if ( dev->base_address[i] > 0x10000000 ) {
				printk("Relocating PCI address %lx -> %lx\n",
				dev->base_address[i],
				(dev->base_address[i] & 0x00FFFFFF)|0x01000000);

				dev->base_address[i] = (dev->base_address[i] & 
							0x00FFFFFF)|0x01000000;
				pci_write_config_dword(dev, 
						PCI_BASE_ADDRESS_0+(i*0x4),
						dev->base_address[i] );
			}
		}
#if 0
	/*
	 * If we have residual data and if it knows about this
	 * device ask it what the irq is.
	 *  -- Cort
	 */
	ppcd = residual_find_device_id( ~0L, dev->device, -1,-1,-1, 0);
#endif
	}
}

decl_config_access_method(indirect);

__initfunc(
void
prep_setup_pci_ptrs(void))
{
	PPC_DEVICE *hostbridge;

        printk("PReP architecture\n");
        if ( _prep_type == _PREP_Radstone )
        {
		pci_config_address = (unsigned *)0x80000cf8;
		pci_config_data = (char *)0x80000cfc;
                set_config_access_method(indirect);		
        }
        else
        {
                hostbridge = residual_find_device(PROCESSORDEVICE, NULL,
		       BridgeController, PCIBridge, -1, 0);
                if (hostbridge &&
                    hostbridge->DeviceId.Interface == PCIBridgeIndirect) {
                        PnP_TAG_PACKET * pkt;
                        set_config_access_method(indirect);
                        pkt = PnP_find_large_vendor_packet(
				res->DevicePnPHeap+hostbridge->AllocatedOffset,
				3, 0);
                        if(pkt)
			{
#define p pkt->L4_Pack.L4_Data.L4_PPCPack
                                pci_config_address= (unsigned *)ld_le32((unsigned *) p.PPCData);
				pci_config_data= (unsigned char *)ld_le32((unsigned *) (p.PPCData+8));
                        }
			else
			{
                                pci_config_address= (unsigned *) 0x80000cf8;
                                pci_config_data= (unsigned char *) 0x80000cfc;
                        }
                }
		else
		{
                        set_config_access_method(prep);
                }

        }

	ppc_md.pcibios_fixup = prep_pcibios_fixup;
}