diff options
Diffstat (limited to 'arch/arm/include/asm/mach/pci.h')
-rw-r--r-- | arch/arm/include/asm/mach/pci.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h new file mode 100644 index 0000000000..ea9bd08895 --- /dev/null +++ b/arch/arm/include/asm/mach/pci.h @@ -0,0 +1,86 @@ +/* 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 */ |