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galaxy_pci.c
Package: linux-2.4.20.tar.gz [view]
Upload User: jlfgdled
Upload Date: 2013-04-10
Package Size: 33168k
Code Size: 2k
Category:
Linux-Unix program
Development Platform:
Unix_Linux
- /*
- * BK Id: %F% %I% %G% %U% %#%
- */
- /*
- *
- * 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 <asm/pci-bridge.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, ...);
- */
- }