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