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86 lines
2.1 KiB
86 lines
2.1 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* arch/arm/include/asm/mach/pci.h |
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* |
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* Copyright (C) 2000 Russell King |
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*/ |
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#ifndef __ASM_MACH_PCI_H |
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#define __ASM_MACH_PCI_H |
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#include <linux/ioport.h> |
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struct pci_sys_data; |
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struct pci_ops; |
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struct pci_bus; |
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struct pci_host_bridge; |
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struct device; |
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struct hw_pci { |
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struct pci_ops *ops; |
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int nr_controllers; |
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void **private_data; |
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int (*setup)(int nr, struct pci_sys_data *); |
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int (*scan)(int nr, struct pci_host_bridge *); |
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void (*preinit)(void); |
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void (*postinit)(void); |
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u8 (*swizzle)(struct pci_dev *dev, u8 *pin); |
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int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin); |
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}; |
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/* |
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* Per-controller structure |
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*/ |
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struct pci_sys_data { |
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struct list_head node; |
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int busnr; /* primary bus number */ |
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u64 mem_offset; /* bus->cpu memory mapping offset */ |
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unsigned long io_offset; /* bus->cpu IO mapping offset */ |
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struct pci_bus *bus; /* PCI bus */ |
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struct list_head resources; /* root bus resources (apertures) */ |
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struct resource io_res; |
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char io_res_name[12]; |
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/* Bridge swizzling */ |
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u8 (*swizzle)(struct pci_dev *, u8 *); |
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/* IRQ mapping */ |
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int (*map_irq)(const struct pci_dev *, u8, u8); |
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void *private_data; /* platform controller private data */ |
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}; |
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/* |
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* Call this with your hw_pci struct to initialise the PCI system. |
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*/ |
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void pci_common_init_dev(struct device *, struct hw_pci *); |
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/* |
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* Compatibility wrapper for older platforms that do not care about |
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* passing the parent device. |
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*/ |
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static inline void pci_common_init(struct hw_pci *hw) |
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{ |
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pci_common_init_dev(NULL, hw); |
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} |
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/* |
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* Setup early fixed I/O mapping. |
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*/ |
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#if defined(CONFIG_PCI) |
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extern void pci_map_io_early(unsigned long pfn); |
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#else |
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static inline void pci_map_io_early(unsigned long pfn) {} |
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#endif |
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/* |
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* PCI controllers |
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*/ |
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extern struct pci_ops iop3xx_ops; |
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extern int iop3xx_pci_setup(int nr, struct pci_sys_data *); |
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extern void iop3xx_pci_preinit(void); |
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extern void iop3xx_pci_preinit_cond(void); |
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extern struct pci_ops dc21285_ops; |
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extern int dc21285_setup(int nr, struct pci_sys_data *); |
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extern void dc21285_preinit(void); |
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extern void dc21285_postinit(void); |
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#endif /* __ASM_MACH_PCI_H */
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