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2 * c 2001 PPC 64 Team, IBM Corp
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 #ifndef _ASM_POWERPC_PPC_PCI_H
10 #define _ASM_POWERPC_PPC_PCI_H
12 #include <linux/pci.h>
13 #include <asm/pci-bridge.h>
15 extern unsigned long isa_io_base
;
17 extern void pci_setup_pci_controller(struct pci_controller
*hose
);
18 extern void pci_setup_phb_io(struct pci_controller
*hose
, int primary
);
19 extern void pci_setup_phb_io_dynamic(struct pci_controller
*hose
, int primary
);
22 extern struct list_head hose_list
;
23 extern int global_phb_number
;
25 extern unsigned long find_and_init_phbs(void);
27 extern struct pci_dev
*ppc64_isabridge_dev
; /* may be NULL if no ISA bus */
29 /** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */
30 #define BUID_HI(buid) ((buid) >> 32)
31 #define BUID_LO(buid) ((buid) & 0xffffffff)
33 /* PCI device_node operations */
35 typedef void *(*traverse_func
)(struct device_node
*me
, void *data
);
36 void *traverse_pci_devices(struct device_node
*start
, traverse_func pre
,
39 void pci_devs_phb_init(void);
40 void pci_devs_phb_init_dynamic(struct pci_controller
*phb
);
41 void __devinit
scan_phb(struct pci_controller
*hose
);
44 void init_pci_config_tokens (void);
45 unsigned long get_phb_buid (struct device_node
*);
47 /* From pSeries_pci.h */
48 extern void pSeries_final_fixup(void);
49 extern void pSeries_irq_bus_setup(struct pci_bus
*bus
);
51 extern unsigned long pci_probe_only
;
52 extern unsigned long pci_assign_all_buses
;
53 extern int pci_read_irq_line(struct pci_dev
*pci_dev
);
55 /* ---- EEH internal-use-only related routines ---- */
58 * rtas_set_slot_reset -- unfreeze a frozen slot
60 * Clear the EEH-frozen condition on a slot. This routine
61 * does this by asserting the PCI #RST line for 1/8th of
62 * a second; this routine will sleep while the adapter is
65 void rtas_set_slot_reset (struct pci_dn
*);
68 * eeh_restore_bars - Restore device configuration info.
70 * A reset of a PCI device will clear out its config space.
71 * This routines will restore the config space for this
72 * device, and is children, to values previously obtained
75 void eeh_restore_bars(struct pci_dn
*);
78 * rtas_configure_bridge -- firmware initialization of pci bridge
80 * Ask the firmware to configure all PCI bridges devices
81 * located behind the indicated node. Required after a
82 * pci device reset. Does essentially the same hing as
83 * eeh_restore_bars, but for brdges, and lets firmware
86 void rtas_configure_bridge(struct pci_dn
*);
88 int rtas_write_config(struct pci_dn
*, int where
, int size
, u32 val
);
92 #endif /* _ASM_POWERPC_PPC_PCI_H */