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/* 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 */