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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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
16struct pci_sys_data;
17struct pci_ops;
18struct pci_bus;
19struct device;
20
21struct hw_pci {
22 struct msi_controller *msi_ctrl;
23 struct pci_ops *ops;
24 int nr_controllers;
25 void **private_data;
26 int (*setup)(int nr, struct pci_sys_data *);
27 struct pci_bus *(*scan)(int nr, struct pci_sys_data *);
28 void (*preinit)(void);
29 void (*postinit)(void);
30 u8 (*swizzle)(struct pci_dev *dev, u8 *pin);
31 int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
32 resource_size_t (*align_resource)(struct pci_dev *dev,
33 const struct resource *res,
34 resource_size_t start,
35 resource_size_t size,
36 resource_size_t align);
37};
38
39/*
40 * Per-controller structure
41 */
42struct pci_sys_data {
43 struct list_head node;
44 int busnr; /* primary bus number */
45 u64 mem_offset; /* bus->cpu memory mapping offset */
46 unsigned long io_offset; /* bus->cpu IO mapping offset */
47 struct pci_bus *bus; /* PCI bus */
48 struct list_head resources; /* root bus resources (apertures) */
49 struct resource io_res;
50 char io_res_name[12];
51 /* Bridge swizzling */
52 u8 (*swizzle)(struct pci_dev *, u8 *);
53 /* IRQ mapping */
54 int (*map_irq)(const struct pci_dev *, u8, u8);
55 void *private_data; /* platform controller private data */
56};
57
58/*
59 * Call this with your hw_pci struct to initialise the PCI system.
60 */
61void pci_common_init_dev(struct device *, struct hw_pci *);
62
63/*
64 * Compatibility wrapper for older platforms that do not care about
65 * passing the parent device.
66 */
67static inline void pci_common_init(struct hw_pci *hw)
68{
69 pci_common_init_dev(NULL, hw);
70}
71
72/*
73 * Setup early fixed I/O mapping.
74 */
75#if defined(CONFIG_PCI)
76extern void pci_map_io_early(unsigned long pfn);
77#else
78static inline void pci_map_io_early(unsigned long pfn) {}
79#endif
80
81/*
82 * PCI controllers
83 */
84extern struct pci_ops iop3xx_ops;
85extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
86extern void iop3xx_pci_preinit(void);
87extern void iop3xx_pci_preinit_cond(void);
88
89extern struct pci_ops dc21285_ops;
90extern int dc21285_setup(int nr, struct pci_sys_data *);
91extern void dc21285_preinit(void);
92extern void dc21285_postinit(void);
93
94#endif /* __ASM_MACH_PCI_H */