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 */
pci_common_init(struct hw_pci * hw)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
pci_map_io_early(unsigned long pfn)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
