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
 
 
14struct pci_sys_data;
 
15struct pci_bus;
 
 
16
17struct hw_pci {
18#ifdef CONFIG_PCI_DOMAINS
19	int		domain;
20#endif
21	struct list_head buses;
22	int		nr_controllers;
 
 
23	int		(*setup)(int nr, struct pci_sys_data *);
24	struct pci_bus *(*scan)(int nr, struct pci_sys_data *);
25	void		(*preinit)(void);
26	void		(*postinit)(void);
27	u8		(*swizzle)(struct pci_dev *dev, u8 *pin);
28	int		(*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
 
 
 
 
 
29};
30
31/*
32 * Per-controller structure
33 */
34struct pci_sys_data {
35#ifdef CONFIG_PCI_DOMAINS
36	int		domain;
37#endif
38	struct list_head node;
39	int		busnr;		/* primary bus number			*/
40	u64		mem_offset;	/* bus->cpu memory mapping offset	*/
41	unsigned long	io_offset;	/* bus->cpu IO mapping offset		*/
42	struct pci_bus	*bus;		/* PCI bus				*/
43	struct resource *resource[3];	/* Primary PCI bus resources		*/
 
 
44					/* Bridge swizzling			*/
45	u8		(*swizzle)(struct pci_dev *, u8 *);
46					/* IRQ mapping				*/
47	int		(*map_irq)(const struct pci_dev *, u8, u8);
48	struct hw_pci	*hw;
49	void		*private_data;	/* platform controller private data	*/
50};
51
52/*
53 * This is the standard PCI-PCI bridge swizzling algorithm.
54 */
55#define pci_std_swizzle pci_common_swizzle
56
57/*
58 * Call this with your hw_pci struct to initialise the PCI system.
 
59 */
60void pci_common_init(struct hw_pci *);
 
 
 
 
 
 
 
 
 
 
 
 
61
62/*
63 * PCI controllers
64 */
 
65extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
66extern struct pci_bus *iop3xx_pci_scan_bus(int nr, struct pci_sys_data *);
67extern void iop3xx_pci_preinit(void);
68extern void iop3xx_pci_preinit_cond(void);
69
 
70extern int dc21285_setup(int nr, struct pci_sys_data *);
71extern struct pci_bus *dc21285_scan_bus(int nr, struct pci_sys_data *);
72extern void dc21285_preinit(void);
73extern void dc21285_postinit(void);
74
75extern int via82c505_setup(int nr, struct pci_sys_data *);
76extern struct pci_bus *via82c505_scan_bus(int nr, struct pci_sys_data *);
77extern void via82c505_init(void *sysdata);
78
79extern int pci_v3_setup(int nr, struct pci_sys_data *);
80extern struct pci_bus *pci_v3_scan_bus(int nr, struct pci_sys_data *);
81extern void pci_v3_preinit(void);
82extern void pci_v3_postinit(void);
83
84#endif /* __ASM_MACH_PCI_H */

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 *  arch/arm/include/asm/mach/pci.h
 4 *
 5 *  Copyright (C) 2000 Russell King
 
 
 
 
 6 */
 7
 8#ifndef __ASM_MACH_PCI_H
 9#define __ASM_MACH_PCI_H
10
11#include <linux/ioport.h>
12
13struct pci_sys_data;
14struct pci_ops;
15struct pci_bus;
16struct pci_host_bridge;
17struct device;
18
19struct hw_pci {
20	struct msi_controller *msi_ctrl;
21	struct pci_ops	*ops;
 
 
22	int		nr_controllers;
23	unsigned int	io_optional:1;
24	void		**private_data;
25	int		(*setup)(int nr, struct pci_sys_data *);
26	int		(*scan)(int nr, struct pci_host_bridge *);
27	void		(*preinit)(void);
28	void		(*postinit)(void);
29	u8		(*swizzle)(struct pci_dev *dev, u8 *pin);
30	int		(*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
31	resource_size_t (*align_resource)(struct pci_dev *dev,
32					  const struct resource *res,
33					  resource_size_t start,
34					  resource_size_t size,
35					  resource_size_t align);
36};
37
38/*
39 * Per-controller structure
40 */
41struct pci_sys_data {
 
 
 
42	struct list_head node;
43	int		busnr;		/* primary bus number			*/
44	u64		mem_offset;	/* bus->cpu memory mapping offset	*/
45	unsigned long	io_offset;	/* bus->cpu IO mapping offset		*/
46	struct pci_bus	*bus;		/* PCI bus				*/
47	struct list_head resources;	/* root bus resources (apertures)       */
48	struct resource io_res;
49	char		io_res_name[12];
50					/* Bridge swizzling			*/
51	u8		(*swizzle)(struct pci_dev *, u8 *);
52					/* IRQ mapping				*/
53	int		(*map_irq)(const struct pci_dev *, u8, u8);
 
54	void		*private_data;	/* platform controller private data	*/
55};
56
57/*
58 * Call this with your hw_pci struct to initialise the PCI system.
59 */
60void pci_common_init_dev(struct device *, struct hw_pci *);
61
62/*
63 * Compatibility wrapper for older platforms that do not care about
64 * passing the parent device.
65 */
66static inline void pci_common_init(struct hw_pci *hw)
67{
68	pci_common_init_dev(NULL, hw);
69}
70
71/*
72 * Setup early fixed I/O mapping.
73 */
74#if defined(CONFIG_PCI)
75extern void pci_map_io_early(unsigned long pfn);
76#else
77static inline void pci_map_io_early(unsigned long pfn) {}
78#endif
79
80/*
81 * PCI controllers
82 */
83extern struct pci_ops iop3xx_ops;
84extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
 
85extern void iop3xx_pci_preinit(void);
86extern void iop3xx_pci_preinit_cond(void);
87
88extern struct pci_ops dc21285_ops;
89extern int dc21285_setup(int nr, struct pci_sys_data *);
 
90extern void dc21285_preinit(void);
91extern void dc21285_postinit(void);
 
 
 
 
 
 
 
 
 
92
93#endif /* __ASM_MACH_PCI_H */