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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Russell King4baa9922008-08-02 10:55:55 +01002 * arch/arm/include/asm/mach/pci.h
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 *
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
Anton Vorontsov52882172010-04-19 13:20:49 +010011#ifndef __ASM_MACH_PCI_H
12#define __ASM_MACH_PCI_H
13
Rob Herring3c5d1692012-07-09 21:59:03 -050014#include <linux/ioport.h>
Rob Herringc2794432012-02-29 18:10:58 -060015
Linus Torvalds1da177e2005-04-16 15:20:36 -070016struct pci_sys_data;
Russell Kingc23bfc32012-03-10 12:49:16 +000017struct pci_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -070018struct pci_bus;
Linus Walleij14d86e72013-04-11 23:32:28 +020019struct device;
Linus Torvalds1da177e2005-04-16 15:20:36 -070020
21struct hw_pci {
Anton Vorontsov52882172010-04-19 13:20:49 +010022#ifdef CONFIG_PCI_DOMAINS
23 int domain;
24#endif
Yijing Wang49dcc012014-10-27 15:48:40 +080025#ifdef CONFIG_PCI_MSI
26 struct msi_controller *msi_ctrl;
27#endif
Russell Kingc23bfc32012-03-10 12:49:16 +000028 struct pci_ops *ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 int nr_controllers;
Thierry Reding352af7d2013-02-11 08:46:10 +010030 void **private_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -070031 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);
Ralf Baechled5341942011-06-10 15:30:21 +010036 int (*map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
Thomas Petazzoni029baf12013-03-26 18:14:24 +010037 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);
Linus Torvalds1da177e2005-04-16 15:20:36 -070042};
43
44/*
45 * Per-controller structure
46 */
47struct pci_sys_data {
Anton Vorontsov52882172010-04-19 13:20:49 +010048#ifdef CONFIG_PCI_DOMAINS
49 int domain;
50#endif
Yijing Wang49dcc012014-10-27 15:48:40 +080051#ifdef CONFIG_PCI_MSI
52 struct msi_controller *msi_ctrl;
53#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070054 struct list_head node;
55 int busnr; /* primary bus number */
Greg Kroah-Hartmane31dd6e2006-06-12 17:06:02 -070056 u64 mem_offset; /* bus->cpu memory mapping offset */
Linus Torvalds1da177e2005-04-16 15:20:36 -070057 unsigned long io_offset; /* bus->cpu IO mapping offset */
58 struct pci_bus *bus; /* PCI bus */
Bjorn Helgaas37d15902011-10-28 16:26:16 -060059 struct list_head resources; /* root bus resources (apertures) */
Rob Herring3c5d1692012-07-09 21:59:03 -050060 struct resource io_res;
61 char io_res_name[12];
Linus Torvalds1da177e2005-04-16 15:20:36 -070062 /* Bridge swizzling */
63 u8 (*swizzle)(struct pci_dev *, u8 *);
64 /* IRQ mapping */
Ralf Baechled5341942011-06-10 15:30:21 +010065 int (*map_irq)(const struct pci_dev *, u8, u8);
Thomas Petazzoni029baf12013-03-26 18:14:24 +010066 /* 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);
Saeed Bishara35fe2fc2010-06-03 14:58:46 +030072 void *private_data; /* platform controller private data */
Linus Torvalds1da177e2005-04-16 15:20:36 -070073};
74
75/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 * Call this with your hw_pci struct to initialise the PCI system.
77 */
Linus Walleij14d86e72013-04-11 23:32:28 +020078void 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 */
84static inline void pci_common_init(struct hw_pci *hw)
85{
86 pci_common_init_dev(NULL, hw);
87}
Linus Torvalds1da177e2005-04-16 15:20:36 -070088
89/*
Rob Herringc2794432012-02-29 18:10:58 -060090 * Setup early fixed I/O mapping.
91 */
92#if defined(CONFIG_PCI)
93extern void pci_map_io_early(unsigned long pfn);
94#else
95static inline void pci_map_io_early(unsigned long pfn) {}
96#endif
97
98/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 * PCI controllers
100 */
Russell Kingc23bfc32012-03-10 12:49:16 +0000101extern struct pci_ops iop3xx_ops;
Lennert Buytenhek0cb015f2006-09-18 23:16:23 +0100102extern int iop3xx_pci_setup(int nr, struct pci_sys_data *);
Lennert Buytenhek0cb015f2006-09-18 23:16:23 +0100103extern void iop3xx_pci_preinit(void);
Dan Williamsc34002c2008-03-26 19:12:38 -0700104extern void iop3xx_pci_preinit_cond(void);
Lennert Buytenhek0cb015f2006-09-18 23:16:23 +0100105
Russell Kingc23bfc32012-03-10 12:49:16 +0000106extern struct pci_ops dc21285_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107extern int dc21285_setup(int nr, struct pci_sys_data *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108extern void dc21285_preinit(void);
109extern void dc21285_postinit(void);
110
Anton Vorontsov52882172010-04-19 13:20:49 +0100111#endif /* __ASM_MACH_PCI_H */