[linux-2.6-block.git] / arch / arm / include / asm / mach / pci.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  arch/arm/include/asm/mach/pci.h
 *
 *  Copyright (C) 2000 Russell King
 */

#ifndef __ASM_MACH_PCI_H
#define __ASM_MACH_PCI_H

#include <linux/ioport.h>

struct pci_sys_data;
struct pci_ops;
struct pci_bus;
struct pci_host_bridge;
struct device;

struct hw_pci {
	struct msi_controller *msi_ctrl;
	struct pci_ops	*ops;
	int		nr_controllers;
	unsigned int	io_optional:1;
	void		**private_data;
	int		(*setup)(int nr, struct pci_sys_data *);
	int		(*scan)(int nr, struct pci_host_bridge *);
	void		(*preinit)(void);
	void		(*postinit)(void);
	u8		(*swizzle)(struct pci_dev *dev, u8 *pin);
	int		(*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
	resource_size_t (*align_resource)(struct pci_dev *dev,
					  const struct resource *res,
					  resource_size_t start,
					  resource_size_t size,
					  resource_size_t align);
};

/*
 * Per-controller structure
 */
struct pci_sys_data {
	struct list_head node;
	int		busnr;		/* primary bus number			*/
	u64		mem_offset;	/* bus->cpu memory mapping offset	*/
	unsigned long	io_offset;	/* bus->cpu IO mapping offset		*/
	struct pci_bus	*bus;		/* PCI bus				*/
	struct list_head resources;	/* root bus resources (apertures)       */
	struct resource io_res;
	char		io_res_name[12];
					/* Bridge swizzling			*/
	u8		(*swizzle)(struct pci_dev *, u8 *);
					/* IRQ mapping				*/
	int		(*map_irq)(const struct pci_dev *, u8, u8);
	void		*private_data;	/* platform controller private data	*/
};

/*
 * Call this with your hw_pci struct to initialise the PCI system.
 */
void pci_common_init_dev(struct device *, struct hw_pci *);

/*
 * Compatibility wrapper for older platforms that do not care about
 * passing the parent device.
 */
static inline void pci_common_init(struct hw_pci *hw)
{
	pci_common_init_dev(NULL, hw);
}

/*
 * Setup early fixed I/O mapping.
 */
#if defined(CONFIG_PCI)
extern void pci_map_io_early(unsigned long pfn);
#else
static inline void pci_map_io_early(unsigned long pfn) {}
#endif

/*
 * PCI controllers
 */
extern struct pci_ops iop3xx_ops;
extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
extern void iop3xx_pci_preinit(void);
extern void iop3xx_pci_preinit_cond(void);

extern struct pci_ops dc21285_ops;
extern int dc21285_setup(int nr, struct pci_sys_data *);
extern void dc21285_preinit(void);
extern void dc21285_postinit(void);

#endif /* __ASM_MACH_PCI_H */
Commit	Line	Data
d2912cb1	1	/* SPDX-License-Identifier: GPL-2.0-only */
1da177e4	2	/*
4baa9922	3	* arch/arm/include/asm/mach/pci.h
1da177e4 LT	4	*
1da177e4 LT	5	* Copyright (C) 2000 Russell King
1da177e4 LT	6	*/
1da177e4 LT	7
52882173 AV	8	#ifndef __ASM_MACH_PCI_H
	9	#define __ASM_MACH_PCI_H
	10
3c5d1699	11	#include <linux/ioport.h>
c2794437	12
1da177e4	13	struct pci_sys_data;
c23bfc38	14	struct pci_ops;
1da177e4	15	struct pci_bus;
97ad2bdc	16	struct pci_host_bridge;
14d86e72	17	struct device;
1da177e4 LT	18
1da177e4 LT	19	struct hw_pci {
49dcc01a	20	struct msi_controller *msi_ctrl;
c23bfc38	21	struct pci_ops *ops;
1da177e4	22	int nr_controllers;
1fa05101	23	unsigned int io_optional:1;
352af7d4	24	void **private_data;
1da177e4	25	int (setup)(int nr, struct pci_sys_data );
97ad2bdc	26	int (scan)(int nr, struct pci_host_bridge );
1da177e4 LT	27	void (*preinit)(void);
	28	void (*postinit)(void);
	29	u8 (swizzle)(struct pci_dev dev, u8 *pin);
d5341942	30	int (map_irq)(const struct pci_dev dev, u8 slot, u8 pin);
029baf14 TP	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);
1da177e4 LT	36	};
	37
	38	/*
	39	* Per-controller structure
	40	*/
	41	struct pci_sys_data {
	42	struct list_head node;
	43	int busnr; /* primary bus number */
e31dd6e4	44	u64 mem_offset; /* bus->cpu memory mapping offset */
1da177e4 LT	45	unsigned long io_offset; /* bus->cpu IO mapping offset */
1da177e4 LT	46	struct pci_bus bus; / PCI bus */
37d15909	47	struct list_head resources; /* root bus resources (apertures) */
3c5d1699 RH	48	struct resource io_res;
3c5d1699 RH	49	char io_res_name[12];
1da177e4 LT	50	/* Bridge swizzling */
	51	u8 (swizzle)(struct pci_dev , u8 *);
	52	/* IRQ mapping */
d5341942	53	int (map_irq)(const struct pci_dev , u8, u8);
35fe2fc4	54	void private_data; / platform controller private data */
1da177e4 LT	55	};
1da177e4 LT	56
1da177e4 LT	57	/*
	58	* Call this with your hw_pci struct to initialise the PCI system.
	59	*/
14d86e72 LW	60	void 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	*/
	66	static inline void pci_common_init(struct hw_pci *hw)
	67	{
	68	pci_common_init_dev(NULL, hw);
	69	}
1da177e4	70
c2794437 RH	71	/*
	72	* Setup early fixed I/O mapping.
	73	*/
	74	#if defined(CONFIG_PCI)
	75	extern void pci_map_io_early(unsigned long pfn);
	76	#else
	77	static inline void pci_map_io_early(unsigned long pfn) {}
	78	#endif
	79
1da177e4 LT	80	/*
	81	* PCI controllers
	82	*/
c23bfc38	83	extern struct pci_ops iop3xx_ops;
0cb015f9	84	extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
0cb015f9	85	extern void iop3xx_pci_preinit(void);
c34002c1	86	extern void iop3xx_pci_preinit_cond(void);
0cb015f9	87
c23bfc38	88	extern struct pci_ops dc21285_ops;
1da177e4	89	extern int dc21285_setup(int nr, struct pci_sys_data *);
1da177e4 LT	90	extern void dc21285_preinit(void);
	91	extern void dc21285_postinit(void);
	92
52882173	93	#endif /* __ASM_MACH_PCI_H */