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/* 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 pci_ops *ops;
int nr_controllers;
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);
};
/*
* 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 */
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