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 #ifdef CONFIG_PCI_DOMAINS 23 int domain; 24 #endif 25 struct pci_ops *ops; 26 int nr_controllers; 27 void **private_data; 28 int (*setup)(int nr, struct pci_sys_data *); 29 struct pci_bus *(*scan)(int nr, struct pci_sys_data *); 30 void (*preinit)(void); 31 void (*postinit)(void); 32 u8 (*swizzle)(struct pci_dev *dev, u8 *pin); 33 int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin); 34 resource_size_t (*align_resource)(struct pci_dev *dev, 35 const struct resource *res, 36 resource_size_t start, 37 resource_size_t size, 38 resource_size_t align); 39 void (*add_bus)(struct pci_bus *bus); 40 void (*remove_bus)(struct pci_bus *bus); 41 }; 42 43 /* 44 * Per-controller structure 45 */ 46 struct pci_sys_data { 47 #ifdef CONFIG_PCI_DOMAINS 48 int domain; 49 #endif 50 struct list_head node; 51 int busnr; /* primary bus number */ 52 u64 mem_offset; /* bus->cpu memory mapping offset */ 53 unsigned long io_offset; /* bus->cpu IO mapping offset */ 54 struct pci_bus *bus; /* PCI bus */ 55 struct list_head resources; /* root bus resources (apertures) */ 56 struct resource io_res; 57 char io_res_name[12]; 58 /* Bridge swizzling */ 59 u8 (*swizzle)(struct pci_dev *, u8 *); 60 /* IRQ mapping */ 61 int (*map_irq)(const struct pci_dev *, u8, u8); 62 /* Resource alignement requirements */ 63 resource_size_t (*align_resource)(struct pci_dev *dev, 64 const struct resource *res, 65 resource_size_t start, 66 resource_size_t size, 67 resource_size_t align); 68 void (*add_bus)(struct pci_bus *bus); 69 void (*remove_bus)(struct pci_bus *bus); 70 void *private_data; /* platform controller private data */ 71 }; 72 73 /* 74 * Call this with your hw_pci struct to initialise the PCI system. 75 */ 76 void pci_common_init_dev(struct device *, struct hw_pci *); 77 78 /* 79 * Compatibility wrapper for older platforms that do not care about 80 * passing the parent device. 81 */ 82 static inline void pci_common_init(struct hw_pci *hw) 83 { 84 pci_common_init_dev(NULL, hw); 85 } 86 87 /* 88 * Setup early fixed I/O mapping. 89 */ 90 #if defined(CONFIG_PCI) 91 extern void pci_map_io_early(unsigned long pfn); 92 #else 93 static inline void pci_map_io_early(unsigned long pfn) {} 94 #endif 95 96 /* 97 * PCI controllers 98 */ 99 extern struct pci_ops iop3xx_ops; 100 extern int iop3xx_pci_setup(int nr, struct pci_sys_data *); 101 extern void iop3xx_pci_preinit(void); 102 extern void iop3xx_pci_preinit_cond(void); 103 104 extern struct pci_ops dc21285_ops; 105 extern int dc21285_setup(int nr, struct pci_sys_data *); 106 extern void dc21285_preinit(void); 107 extern void dc21285_postinit(void); 108 109 #endif /* __ASM_MACH_PCI_H */ 110