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 pci_ops	*ops;
21	int		nr_controllers;
 
22	void		**private_data;
23	int		(*setup)(int nr, struct pci_sys_data *);
24	int		(*scan)(int nr, struct pci_host_bridge *);
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	struct list_head node;
36	int		busnr;		/* primary bus number			*/
37	u64		mem_offset;	/* bus->cpu memory mapping offset	*/
38	unsigned long	io_offset;	/* bus->cpu IO mapping offset		*/
39	struct pci_bus	*bus;		/* PCI bus				*/
40	struct list_head resources;	/* root bus resources (apertures)       */
41	struct resource io_res;
42	char		io_res_name[12];
43					/* Bridge swizzling			*/
44	u8		(*swizzle)(struct pci_dev *, u8 *);
45					/* IRQ mapping				*/
46	int		(*map_irq)(const struct pci_dev *, u8, u8);
47	void		*private_data;	/* platform controller private data	*/
48};
49
50/*
51 * Call this with your hw_pci struct to initialise the PCI system.
52 */
53void pci_common_init_dev(struct device *, struct hw_pci *);
54
55/*
56 * Compatibility wrapper for older platforms that do not care about
57 * passing the parent device.
58 */
59static inline void pci_common_init(struct hw_pci *hw)
60{
61	pci_common_init_dev(NULL, hw);
62}
63
64/*
65 * Setup early fixed I/O mapping.
66 */
67#if defined(CONFIG_PCI)
68extern void pci_map_io_early(unsigned long pfn);
69#else
70static inline void pci_map_io_early(unsigned long pfn) {}
71#endif
72
73/*
74 * PCI controllers
75 */
76extern struct pci_ops iop3xx_ops;
77extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
78extern void iop3xx_pci_preinit(void);
79extern void iop3xx_pci_preinit_cond(void);
80
81extern struct pci_ops dc21285_ops;
82extern int dc21285_setup(int nr, struct pci_sys_data *);
83extern void dc21285_preinit(void);
84extern void dc21285_postinit(void);
85
86#endif /* __ASM_MACH_PCI_H */

 
 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 pci_host_bridge;
20struct device;
21
22struct hw_pci {
23	struct msi_controller *msi_ctrl;
24	struct pci_ops	*ops;
25	int		nr_controllers;
26	unsigned int	io_optional:1;
27	void		**private_data;
28	int		(*setup)(int nr, struct pci_sys_data *);
29	int		(*scan)(int nr, struct pci_host_bridge *);
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};
40
41/*
42 * Per-controller structure
43 */
44struct pci_sys_data {
45	struct list_head node;
46	int		busnr;		/* primary bus number			*/
47	u64		mem_offset;	/* bus->cpu memory mapping offset	*/
48	unsigned long	io_offset;	/* bus->cpu IO mapping offset		*/
49	struct pci_bus	*bus;		/* PCI bus				*/
50	struct list_head resources;	/* root bus resources (apertures)       */
51	struct resource io_res;
52	char		io_res_name[12];
53					/* Bridge swizzling			*/
54	u8		(*swizzle)(struct pci_dev *, u8 *);
55					/* IRQ mapping				*/
56	int		(*map_irq)(const struct pci_dev *, u8, u8);
57	void		*private_data;	/* platform controller private data	*/
58};
59
60/*
61 * Call this with your hw_pci struct to initialise the PCI system.
62 */
63void pci_common_init_dev(struct device *, struct hw_pci *);
64
65/*
66 * Compatibility wrapper for older platforms that do not care about
67 * passing the parent device.
68 */
69static inline void pci_common_init(struct hw_pci *hw)
70{
71	pci_common_init_dev(NULL, hw);
72}
73
74/*
75 * Setup early fixed I/O mapping.
76 */
77#if defined(CONFIG_PCI)
78extern void pci_map_io_early(unsigned long pfn);
79#else
80static inline void pci_map_io_early(unsigned long pfn) {}
81#endif
82
83/*
84 * PCI controllers
85 */
86extern struct pci_ops iop3xx_ops;
87extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
88extern void iop3xx_pci_preinit(void);
89extern void iop3xx_pci_preinit_cond(void);
90
91extern struct pci_ops dc21285_ops;
92extern int dc21285_setup(int nr, struct pci_sys_data *);
93extern void dc21285_preinit(void);
94extern void dc21285_postinit(void);
95
96#endif /* __ASM_MACH_PCI_H */