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