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