1 /* 2 * arch/arm/include/asm/mach/pci.h 3 * 4 * Copyright (C) 2000 Russell King 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 11 #ifndef __ASM_MACH_PCI_H 12 #define __ASM_MACH_PCI_H 13 14 #include <linux/ioport.h> 15 16 struct pci_sys_data; 17 struct pci_ops; 18 struct pci_bus; 19 struct device; 20 21 struct hw_pci { 22 struct msi_controller *msi_ctrl; 23 struct pci_ops *ops; 24 int nr_controllers; 25 unsigned int io_optional:1; 26 void **private_data; 27 int (*setup)(int nr, struct pci_sys_data *); 28 struct pci_bus *(*scan)(int nr, struct pci_sys_data *); 29 void (*preinit)(void); 30 void (*postinit)(void); 31 u8 (*swizzle)(struct pci_dev *dev, u8 *pin); 32 int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin); 33 resource_size_t (*align_resource)(struct pci_dev *dev, 34 const struct resource *res, 35 resource_size_t start, 36 resource_size_t size, 37 resource_size_t align); 38 }; 39 40 /* 41 * Per-controller structure 42 */ 43 struct pci_sys_data { 44 struct list_head node; 45 int busnr; /* primary bus number */ 46 u64 mem_offset; /* bus->cpu memory mapping offset */ 47 unsigned long io_offset; /* bus->cpu IO mapping offset */ 48 struct pci_bus *bus; /* PCI bus */ 49 struct list_head resources; /* root bus resources (apertures) */ 50 struct resource io_res; 51 char io_res_name[12]; 52 /* Bridge swizzling */ 53 u8 (*swizzle)(struct pci_dev *, u8 *); 54 /* IRQ mapping */ 55 int (*map_irq)(const struct pci_dev *, u8, u8); 56 void *private_data; /* platform controller private data */ 57 }; 58 59 /* 60 * Call this with your hw_pci struct to initialise the PCI system. 61 */ 62 void pci_common_init_dev(struct device *, struct hw_pci *); 63 64 /* 65 * Compatibility wrapper for older platforms that do not care about 66 * passing the parent device. 67 */ 68 static inline void pci_common_init(struct hw_pci *hw) 69 { 70 pci_common_init_dev(NULL, hw); 71 } 72 73 /* 74 * Setup early fixed I/O mapping. 75 */ 76 #if defined(CONFIG_PCI) 77 extern void pci_map_io_early(unsigned long pfn); 78 #else 79 static inline void pci_map_io_early(unsigned long pfn) {} 80 #endif 81 82 /* 83 * PCI controllers 84 */ 85 extern struct pci_ops iop3xx_ops; 86 extern int iop3xx_pci_setup(int nr, struct pci_sys_data *); 87 extern void iop3xx_pci_preinit(void); 88 extern void iop3xx_pci_preinit_cond(void); 89 90 extern struct pci_ops dc21285_ops; 91 extern int dc21285_setup(int nr, struct pci_sys_data *); 92 extern void dc21285_preinit(void); 93 extern void dc21285_postinit(void); 94 95 #endif /* __ASM_MACH_PCI_H */ 96