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/*
* BK Id: SCCS/s.galaxy_pci.c 1.7 05/17/01 18:14:21 cort
*/
/*
*
* Copyright (c) 2000 Grant Erickson <grant@borg.umn.edu>
* All rights reserved.
*
* Module name: galaxy_pci.c
*
* Description:
* PCI interface code for the IBM PowerPC 405GP on-chip PCI bus
* interface.
*
* Why is this file called "galaxy_pci"? Because on the original
* IBM "Walnut" evaluation board schematic I have, the 405GP is
* is labeled "GALAXY".
*
*/
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/string.h>
#include <linux/init.h>
#include <asm/processor.h>
#include <asm/system.h>
#include <asm/io.h>
#include <asm/machdep.h>
#include "pci.h"
/* Preprocessor Defines */
#define PCICFGADDR (volatile unsigned int *)(0xEEC00000)
#define PCICFGDATA (volatile unsigned int *)(0xEEC00004)
/* Function Prototypes */
void __init
galaxy_pcibios_fixup(void)
{
}
static int
galaxy_pcibios_read_config_byte(struct pci_controller* hose,
u8 bus, u8 dev, u8 offset, u8 *val)
{
return (PCIBIOS_SUCCESSFUL);
}
static int
galaxy_pcibios_read_config_word(struct pci_controller* hose,
u8 bus, u8 dev, u8 offset, u16 *val)
{
return (PCIBIOS_SUCCESSFUL);
}
static int
galaxy_pcibios_read_config_dword(struct pci_controller* hose,
u8 bus, u8 dev, u8 offset, u32 *val)
{
return (PCIBIOS_SUCCESSFUL);
}
static int
galaxy_pcibios_write_config_byte(struct pci_controller* hose,
u8 bus, u8 dev, u8 offset, u8 val)
{
return (PCIBIOS_SUCCESSFUL);
}
static int
galaxy_pcibios_write_config_word(struct pci_controller* hose,
u8 bus, u8 dev, u8 offset, u16 val)
{
return (PCIBIOS_SUCCESSFUL);
}
static int
galaxy_pcibios_write_config_dword(struct pci_controller* hose,
u8 bus, u8 dev, u8 offset, u32 val)
{
return (PCIBIOS_SUCCESSFUL);
}
static struct pci_controller_ops galaxy_pci_ops =
{
galaxy_pcibios_read_config_byte,
galaxy_pcibios_read_config_word,
galaxy_pcibios_read_config_dword,
galaxy_pcibios_write_config_byte,
galaxy_pcibios_write_config_word,
galaxy_pcibios_write_config_dword
};
void __init
galaxy_find_bridges(void)
{
struct pci_controller* hose;
set_config_access_method(galaxy);
ppc_md.pcibios_fixup = galaxy_pcibios_fixup;
hose = pcibios_alloc_controller();
if (!hose)
return;
hose->ops = &galaxy_pci_ops;
/* Todo ...
hose->cfg_data = ioremap(PCICFGDATA, ...);
hose->cfg_addr = ioremap(PCICFGADDR, ...);
*/
}
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