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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SH_PCI_H
#define __ASM_SH_PCI_H
#ifdef __KERNEL__
/* Can be used to override the logic in pci_scan_bus for skipping
already-configured bus numbers - to be used for buggy BIOSes
or architectures with incomplete PCI setup by the loader */
#define pcibios_assign_all_busses() 1
/*
* A board can define one or more PCI channels that represent built-in (or
* external) PCI controllers.
*/
struct pci_channel {
struct pci_channel *next;
struct pci_bus *bus;
struct pci_ops *pci_ops;
struct resource *resources;
unsigned int nr_resources;
unsigned long io_offset;
unsigned long mem_offset;
unsigned long reg_base;
unsigned long io_map_base;
unsigned int index;
unsigned int need_domain_info;
/* Optional error handling */
struct timer_list err_timer, serr_timer;
unsigned int err_irq, serr_irq;
};
/* arch/sh/drivers/pci/pci.c */
extern raw_spinlock_t pci_config_lock;
extern int register_pci_controller(struct pci_channel *hose);
extern void pcibios_report_status(unsigned int status_mask, int warn);
/* arch/sh/drivers/pci/common.c */
extern int early_read_config_byte(struct pci_channel *hose, int top_bus,
int bus, int devfn, int offset, u8 *value);
extern int early_read_config_word(struct pci_channel *hose, int top_bus,
int bus, int devfn, int offset, u16 *value);
extern int early_read_config_dword(struct pci_channel *hose, int top_bus,
int bus, int devfn, int offset, u32 *value);
extern int early_write_config_byte(struct pci_channel *hose, int top_bus,
int bus, int devfn, int offset, u8 value);
extern int early_write_config_word(struct pci_channel *hose, int top_bus,
int bus, int devfn, int offset, u16 value);
extern int early_write_config_dword(struct pci_channel *hose, int top_bus,
int bus, int devfn, int offset, u32 value);
extern void pcibios_enable_timers(struct pci_channel *hose);
extern unsigned int pcibios_handle_status_errors(unsigned long addr,
unsigned int status, struct pci_channel *hose);
extern int pci_is_66mhz_capable(struct pci_channel *hose,
int top_bus, int current_bus);
extern unsigned long PCIBIOS_MIN_IO, PCIBIOS_MIN_MEM;
#define HAVE_PCI_MMAP
#define ARCH_GENERIC_PCI_MMAP_RESOURCE
/* Dynamic DMA mapping stuff.
* SuperH has everything mapped statically like x86.
*/
#ifdef CONFIG_PCI
/*
* None of the SH PCI controllers support MWI, it is always treated as a
* direct memory write.
*/
#define PCI_DISABLE_MWI
#endif
/* Board-specific fixup routines. */
int pcibios_map_platform_irq(const struct pci_dev *dev, u8 slot, u8 pin);
#define pci_domain_nr(bus) ((struct pci_channel *)(bus)->sysdata)->index
static inline int pci_proc_domain(struct pci_bus *bus)
{
struct pci_channel *hose = bus->sysdata;
return hose->need_domain_info;
}
/* Chances are this interrupt is wired PC-style ... */
static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
{
return channel ? 15 : 14;
}
#endif /* __KERNEL__ */
#endif /* __ASM_SH_PCI_H */