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1da177e4 LT |
1 | /****************************************************************************/ |
2 | ||
3 | /* | |
4 | * mcfpci.h -- PCI bridge on ColdFire eval boards. | |
5 | * | |
6 | * (C) Copyright 2000, Greg Ungerer (gerg@snapgear.com) | |
7 | * (C) Copyright 2000, Lineo Inc. (www.lineo.com) | |
8 | */ | |
9 | ||
10 | /****************************************************************************/ | |
11 | #ifndef mcfpci_h | |
12 | #define mcfpci_h | |
13 | /****************************************************************************/ | |
14 | ||
15 | #include <linux/config.h> | |
16 | ||
17 | #ifdef CONFIG_PCI | |
18 | ||
19 | /* | |
20 | * Address regions in the PCI address space are not mapped into the | |
21 | * normal memory space of the ColdFire. They must be accessed via | |
22 | * handler routines. This is easy for I/O space (inb/outb/etc) but | |
23 | * needs some code changes to support ordinary memory. Interrupts | |
24 | * also need to be vectored through the PCI handler first, then it | |
25 | * will call the actual driver sub-handlers. | |
26 | */ | |
27 | ||
28 | /* | |
29 | * Un-define all the standard I/O access routines. | |
30 | */ | |
31 | #undef inb | |
32 | #undef inw | |
33 | #undef inl | |
34 | #undef inb_p | |
35 | #undef inw_p | |
36 | #undef insb | |
37 | #undef insw | |
38 | #undef insl | |
39 | #undef outb | |
40 | #undef outw | |
41 | #undef outl | |
42 | #undef outb_p | |
43 | #undef outw_p | |
44 | #undef outsb | |
45 | #undef outsw | |
46 | #undef outsl | |
47 | ||
48 | #undef request_irq | |
49 | #undef free_irq | |
50 | ||
51 | #undef bus_to_virt | |
52 | #undef virt_to_bus | |
53 | ||
54 | ||
55 | /* | |
56 | * Re-direct all I/O memory accesses functions to PCI specific ones. | |
57 | */ | |
58 | #define inb pci_inb | |
59 | #define inw pci_inw | |
60 | #define inl pci_inl | |
61 | #define inb_p pci_inb | |
62 | #define inw_p pci_inw | |
63 | #define insb pci_insb | |
64 | #define insw pci_insw | |
65 | #define insl pci_insl | |
66 | ||
67 | #define outb pci_outb | |
68 | #define outw pci_outw | |
69 | #define outl pci_outl | |
70 | #define outb_p pci_outb | |
71 | #define outw_p pci_outw | |
72 | #define outsb pci_outsb | |
73 | #define outsw pci_outsw | |
74 | #define outsl pci_outsl | |
75 | ||
76 | #define request_irq pci_request_irq | |
77 | #define free_irq pci_free_irq | |
78 | ||
79 | #define virt_to_bus pci_virt_to_bus | |
80 | #define bus_to_virt pci_bus_to_virt | |
81 | ||
82 | #define CONFIG_COMEMPCI 1 | |
83 | ||
84 | ||
85 | /* | |
86 | * Prototypes of the real PCI functions (defined in bios32.c). | |
87 | */ | |
88 | unsigned char pci_inb(unsigned int addr); | |
89 | unsigned short pci_inw(unsigned int addr); | |
90 | unsigned int pci_inl(unsigned int addr); | |
91 | void pci_insb(void *addr, void *buf, int len); | |
92 | void pci_insw(void *addr, void *buf, int len); | |
93 | void pci_insl(void *addr, void *buf, int len); | |
94 | ||
95 | void pci_outb(unsigned char val, unsigned int addr); | |
96 | void pci_outw(unsigned short val, unsigned int addr); | |
97 | void pci_outl(unsigned int val, unsigned int addr); | |
98 | void pci_outsb(void *addr, void *buf, int len); | |
99 | void pci_outsw(void *addr, void *buf, int len); | |
100 | void pci_outsl(void *addr, void *buf, int len); | |
101 | ||
102 | int pci_request_irq(unsigned int irq, | |
103 | void (*handler)(int, void *, struct pt_regs *), | |
104 | unsigned long flags, | |
105 | const char *device, | |
106 | void *dev_id); | |
107 | void pci_free_irq(unsigned int irq, void *dev_id); | |
108 | ||
109 | void *pci_bmalloc(int size); | |
110 | void pci_bmfree(void *bmp, int len); | |
111 | void pci_copytoshmem(unsigned long bmp, void *src, int size); | |
112 | void pci_copyfromshmem(void *dst, unsigned long bmp, int size); | |
113 | unsigned long pci_virt_to_bus(volatile void *address); | |
114 | void *pci_bus_to_virt(unsigned long address); | |
115 | void pci_bmcpyto(void *dst, void *src, int len); | |
116 | void pci_bmcpyfrom(void *dst, void *src, int len); | |
117 | ||
118 | #endif /* CONFIG_PCI */ | |
119 | /****************************************************************************/ | |
120 | #endif /* mcfpci_h */ |