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 20 struct hw_pci { 21 #ifdef CONFIG_PCI_DOMAINS 22 int domain; 23 #endif 24 struct pci_ops *ops; 25 int nr_controllers; 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 #ifdef CONFIG_PCI_DOMAINS 45 int domain; 46 #endif 47 struct list_head node; 48 int busnr; /* primary bus number */ 49 u64 mem_offset; /* bus->cpu memory mapping offset */ 50 unsigned long io_offset; /* bus->cpu IO mapping offset */ 51 struct pci_bus *bus; /* PCI bus */ 52 struct list_head resources; /* root bus resources (apertures) */ 53 struct resource io_res; 54 char io_res_name[12]; 55 /* Bridge swizzling */ 56 u8 (*swizzle)(struct pci_dev *, u8 *); 57 /* IRQ mapping */ 58 int (*map_irq)(const struct pci_dev *, u8, u8); 59 /* Resource alignement requirements */ 60 resource_size_t (*align_resource)(struct pci_dev *dev, 61 const struct resource *res, 62 resource_size_t start, 63 resource_size_t size, 64 resource_size_t align); 65 void *private_data; /* platform controller private data */ 66 }; 67 68 /* 69 * Call this with your hw_pci struct to initialise the PCI system. 70 */ 71 void pci_common_init(struct hw_pci *); 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 extern struct pci_ops via82c505_ops; 96 extern int via82c505_setup(int nr, struct pci_sys_data *); 97 extern void via82c505_init(void *sysdata); 98 99 extern struct pci_ops pci_v3_ops; 100 extern int pci_v3_setup(int nr, struct pci_sys_data *); 101 extern void pci_v3_preinit(void); 102 extern void pci_v3_postinit(void); 103 104 #endif /* __ASM_MACH_PCI_H */ 105