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 #ifdef CONFIG_PCI_MSI 26 struct msi_controller *msi_ctrl; 27 #endif 28 struct pci_ops *ops; 29 int nr_controllers; 30 void **private_data; 31 int (*setup)(int nr, struct pci_sys_data *); 32 struct pci_bus *(*scan)(int nr, struct pci_sys_data *); 33 void (*preinit)(void); 34 void (*postinit)(void); 35 u8 (*swizzle)(struct pci_dev *dev, u8 *pin); 36 int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin); 37 resource_size_t (*align_resource)(struct pci_dev *dev, 38 const struct resource *res, 39 resource_size_t start, 40 resource_size_t size, 41 resource_size_t align); 42 }; 43 44 /* 45 * Per-controller structure 46 */ 47 struct pci_sys_data { 48 #ifdef CONFIG_PCI_DOMAINS 49 int domain; 50 #endif 51 #ifdef CONFIG_PCI_MSI 52 struct msi_controller *msi_ctrl; 53 #endif 54 struct list_head node; 55 int busnr; /* primary bus number */ 56 u64 mem_offset; /* bus->cpu memory mapping offset */ 57 unsigned long io_offset; /* bus->cpu IO mapping offset */ 58 struct pci_bus *bus; /* PCI bus */ 59 struct list_head resources; /* root bus resources (apertures) */ 60 struct resource io_res; 61 char io_res_name[12]; 62 /* Bridge swizzling */ 63 u8 (*swizzle)(struct pci_dev *, u8 *); 64 /* IRQ mapping */ 65 int (*map_irq)(const struct pci_dev *, u8, u8); 66 /* Resource alignement requirements */ 67 resource_size_t (*align_resource)(struct pci_dev *dev, 68 const struct resource *res, 69 resource_size_t start, 70 resource_size_t size, 71 resource_size_t align); 72 void *private_data; /* platform controller private data */ 73 }; 74 75 /* 76 * Call this with your hw_pci struct to initialise the PCI system. 77 */ 78 void pci_common_init_dev(struct device *, struct hw_pci *); 79 80 /* 81 * Compatibility wrapper for older platforms that do not care about 82 * passing the parent device. 83 */ 84 static inline void pci_common_init(struct hw_pci *hw) 85 { 86 pci_common_init_dev(NULL, hw); 87 } 88 89 /* 90 * Setup early fixed I/O mapping. 91 */ 92 #if defined(CONFIG_PCI) 93 extern void pci_map_io_early(unsigned long pfn); 94 #else 95 static inline void pci_map_io_early(unsigned long pfn) {} 96 #endif 97 98 /* 99 * PCI controllers 100 */ 101 extern struct pci_ops iop3xx_ops; 102 extern int iop3xx_pci_setup(int nr, struct pci_sys_data *); 103 extern void iop3xx_pci_preinit(void); 104 extern void iop3xx_pci_preinit_cond(void); 105 106 extern struct pci_ops dc21285_ops; 107 extern int dc21285_setup(int nr, struct pci_sys_data *); 108 extern void dc21285_preinit(void); 109 extern void dc21285_postinit(void); 110 111 #endif /* __ASM_MACH_PCI_H */ 112