1/*
2 *  arch/arm/include/asm/mach/pci.h
3 *
4 *  Copyright (C) 2000 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#ifndef __ASM_MACH_PCI_H
12#define __ASM_MACH_PCI_H
13
14#include <linux/ioport.h>
15
16struct pci_sys_data;
17struct pci_ops;
18struct pci_bus;
19struct device;
20
21struct hw_pci {
22#ifdef CONFIG_PCI_DOMAINS
23	int		domain;
24#endif
25	struct pci_ops	*ops;
26	int		nr_controllers;
27	void		**private_data;
28	int		(*setup)(int nr, struct pci_sys_data *);
29	struct pci_bus *(*scan)(int nr, struct pci_sys_data *);
30	void		(*preinit)(void);
31	void		(*postinit)(void);
32	u8		(*swizzle)(struct pci_dev *dev, u8 *pin);
33	int		(*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
34	resource_size_t (*align_resource)(struct pci_dev *dev,
35					  const struct resource *res,
36					  resource_size_t start,
37					  resource_size_t size,
38					  resource_size_t align);
39	void		(*add_bus)(struct pci_bus *bus);
40	void		(*remove_bus)(struct pci_bus *bus);
41};
42
43/*
44 * Per-controller structure
45 */
46struct pci_sys_data {
47#ifdef CONFIG_PCI_DOMAINS
48	int		domain;
49#endif
50	struct list_head node;
51	int		busnr;		/* primary bus number			*/
52	u64		mem_offset;	/* bus->cpu memory mapping offset	*/
53	unsigned long	io_offset;	/* bus->cpu IO mapping offset		*/
54	struct pci_bus	*bus;		/* PCI bus				*/
55	struct list_head resources;	/* root bus resources (apertures)       */
56	struct resource io_res;
57	char		io_res_name[12];
58					/* Bridge swizzling			*/
59	u8		(*swizzle)(struct pci_dev *, u8 *);
60					/* IRQ mapping				*/
61	int		(*map_irq)(const struct pci_dev *, u8, u8);
62					/* Resource alignement requirements	*/
63	resource_size_t (*align_resource)(struct pci_dev *dev,
64					  const struct resource *res,
65					  resource_size_t start,
66					  resource_size_t size,
67					  resource_size_t align);
68	void		(*add_bus)(struct pci_bus *bus);
69	void		(*remove_bus)(struct pci_bus *bus);
70	void		*private_data;	/* platform controller private data	*/
71};
72
73/*
74 * Call this with your hw_pci struct to initialise the PCI system.
75 */
76void pci_common_init_dev(struct device *, struct hw_pci *);
77
78/*
79 * Compatibility wrapper for older platforms that do not care about
80 * passing the parent device.
81 */
82static inline void pci_common_init(struct hw_pci *hw)
83{
84	pci_common_init_dev(NULL, hw);
85}
86
87/*
88 * Setup early fixed I/O mapping.
89 */
90#if defined(CONFIG_PCI)
91extern void pci_map_io_early(unsigned long pfn);
92#else
93static inline void pci_map_io_early(unsigned long pfn) {}
94#endif
95
96/*
97 * PCI controllers
98 */
99extern struct pci_ops iop3xx_ops;
100extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
101extern void iop3xx_pci_preinit(void);
102extern void iop3xx_pci_preinit_cond(void);
103
104extern struct pci_ops dc21285_ops;
105extern int dc21285_setup(int nr, struct pci_sys_data *);
106extern void dc21285_preinit(void);
107extern void dc21285_postinit(void);
108
109#endif /* __ASM_MACH_PCI_H */
110