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 pci_host_bridge; 20 struct device; 21 22 struct hw_pci { 23 struct msi_controller *msi_ctrl; 24 struct pci_ops *ops; 25 int nr_controllers; 26 unsigned int io_optional:1; 27 void **private_data; 28 int (*setup)(int nr, struct pci_sys_data *); 29 int (*scan)(int nr, struct pci_host_bridge *); 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 }; 40 41 /* 42 * Per-controller structure 43 */ 44 struct pci_sys_data { 45 struct list_head node; 46 int busnr; /* primary bus number */ 47 u64 mem_offset; /* bus->cpu memory mapping offset */ 48 unsigned long io_offset; /* bus->cpu IO mapping offset */ 49 struct pci_bus *bus; /* PCI bus */ 50 struct list_head resources; /* root bus resources (apertures) */ 51 struct resource io_res; 52 char io_res_name[12]; 53 /* Bridge swizzling */ 54 u8 (*swizzle)(struct pci_dev *, u8 *); 55 /* IRQ mapping */ 56 int (*map_irq)(const struct pci_dev *, u8, u8); 57 void *private_data; /* platform controller private data */ 58 }; 59 60 /* 61 * Call this with your hw_pci struct to initialise the PCI system. 62 */ 63 void pci_common_init_dev(struct device *, struct hw_pci *); 64 65 /* 66 * Compatibility wrapper for older platforms that do not care about 67 * passing the parent device. 68 */ 69 static inline void pci_common_init(struct hw_pci *hw) 70 { 71 pci_common_init_dev(NULL, hw); 72 } 73 74 /* 75 * Setup early fixed I/O mapping. 76 */ 77 #if defined(CONFIG_PCI) 78 extern void pci_map_io_early(unsigned long pfn); 79 #else 80 static inline void pci_map_io_early(unsigned long pfn) {} 81 #endif 82 83 /* 84 * PCI controllers 85 */ 86 extern struct pci_ops iop3xx_ops; 87 extern int iop3xx_pci_setup(int nr, struct pci_sys_data *); 88 extern void iop3xx_pci_preinit(void); 89 extern void iop3xx_pci_preinit_cond(void); 90 91 extern struct pci_ops dc21285_ops; 92 extern int dc21285_setup(int nr, struct pci_sys_data *); 93 extern void dc21285_preinit(void); 94 extern void dc21285_postinit(void); 95 96 #endif /* __ASM_MACH_PCI_H */ 97