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1da177e4 LT |
1 | #ifndef __ASM_SH_PCI_H |
2 | #define __ASM_SH_PCI_H | |
3 | ||
4 | #ifdef __KERNEL__ | |
5 | ||
6 | #include <linux/dma-mapping.h> | |
7 | ||
8 | /* Can be used to override the logic in pci_scan_bus for skipping | |
9 | already-configured bus numbers - to be used for buggy BIOSes | |
10 | or architectures with incomplete PCI setup by the loader */ | |
11 | ||
12 | #define pcibios_assign_all_busses() 1 | |
13 | #define pcibios_scan_all_fns(a, b) 0 | |
14 | ||
15 | /* | |
16 | * A board can define one or more PCI channels that represent built-in (or | |
17 | * external) PCI controllers. | |
18 | */ | |
19 | struct pci_channel { | |
20 | struct pci_ops *pci_ops; | |
21 | struct resource *io_resource; | |
22 | struct resource *mem_resource; | |
23 | int first_devfn; | |
24 | int last_devfn; | |
25 | }; | |
26 | ||
27 | /* | |
28 | * Each board initializes this array and terminates it with a NULL entry. | |
29 | */ | |
30 | extern struct pci_channel board_pci_channels[]; | |
31 | ||
32 | #define PCIBIOS_MIN_IO board_pci_channels->io_resource->start | |
33 | #define PCIBIOS_MIN_MEM board_pci_channels->mem_resource->start | |
34 | ||
959f85f8 PM |
35 | /* |
36 | * I/O routine helpers | |
37 | */ | |
32351a28 | 38 | #if defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785) |
959f85f8 PM |
39 | #define PCI_IO_AREA 0xFE400000 |
40 | #define PCI_IO_SIZE 0x00400000 | |
b6d7b666 PM |
41 | #elif defined(CONFIG_CPU_SH5) |
42 | extern unsigned long PCI_IO_AREA; | |
43 | #define PCI_IO_SIZE 0x00010000 | |
959f85f8 PM |
44 | #else |
45 | #define PCI_IO_AREA 0xFE240000 | |
b6d7b666 | 46 | #define PCI_IO_SIZE 0x00040000 |
959f85f8 PM |
47 | #endif |
48 | ||
49 | #define PCI_MEM_SIZE 0x01000000 | |
50 | ||
51 | #define SH4_PCIIOBR_MASK 0xFFFC0000 | |
52 | #define pci_ioaddr(addr) (PCI_IO_AREA + (addr & ~SH4_PCIIOBR_MASK)) | |
53 | ||
54 | #if defined(CONFIG_PCI) | |
55 | #define is_pci_ioaddr(port) \ | |
56 | (((port) >= PCIBIOS_MIN_IO) && \ | |
57 | ((port) < (PCIBIOS_MIN_IO + PCI_IO_SIZE))) | |
58 | #define is_pci_memaddr(port) \ | |
59 | (((port) >= PCIBIOS_MIN_MEM) && \ | |
60 | ((port) < (PCIBIOS_MIN_MEM + PCI_MEM_SIZE))) | |
61 | #else | |
62 | #define is_pci_ioaddr(port) (0) | |
63 | #define is_pci_memaddr(port) (0) | |
64 | #endif | |
65 | ||
1da177e4 LT |
66 | struct pci_dev; |
67 | ||
68 | extern void pcibios_set_master(struct pci_dev *dev); | |
69 | ||
c9c3e457 | 70 | static inline void pcibios_penalize_isa_irq(int irq, int active) |
1da177e4 LT |
71 | { |
72 | /* We don't do dynamic PCI IRQ allocation */ | |
73 | } | |
74 | ||
75 | /* Dynamic DMA mapping stuff. | |
76 | * SuperH has everything mapped statically like x86. | |
77 | */ | |
78 | ||
79 | /* The PCI address space does equal the physical memory | |
80 | * address space. The networking and block device layers use | |
81 | * this boolean for bounce buffer decisions. | |
82 | */ | |
83 | #define PCI_DMA_BUS_IS_PHYS (1) | |
84 | ||
85 | #include <linux/types.h> | |
86 | #include <linux/slab.h> | |
87 | #include <asm/scatterlist.h> | |
88 | #include <linux/string.h> | |
89 | #include <asm/io.h> | |
90 | ||
91 | /* pci_unmap_{single,page} being a nop depends upon the | |
92 | * configuration. | |
93 | */ | |
94 | #ifdef CONFIG_SH_PCIDMA_NONCOHERENT | |
95 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ | |
96 | dma_addr_t ADDR_NAME; | |
97 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ | |
98 | __u32 LEN_NAME; | |
99 | #define pci_unmap_addr(PTR, ADDR_NAME) \ | |
100 | ((PTR)->ADDR_NAME) | |
101 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ | |
102 | (((PTR)->ADDR_NAME) = (VAL)) | |
103 | #define pci_unmap_len(PTR, LEN_NAME) \ | |
104 | ((PTR)->LEN_NAME) | |
105 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ | |
106 | (((PTR)->LEN_NAME) = (VAL)) | |
107 | #else | |
108 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) | |
109 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) | |
110 | #define pci_unmap_addr(PTR, ADDR_NAME) (0) | |
111 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) | |
112 | #define pci_unmap_len(PTR, LEN_NAME) (0) | |
113 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) | |
114 | #endif | |
115 | ||
bb4a61b6 | 116 | #ifdef CONFIG_PCI |
e24c2d96 DM |
117 | static inline void pci_dma_burst_advice(struct pci_dev *pdev, |
118 | enum pci_dma_burst_strategy *strat, | |
119 | unsigned long *strategy_parameter) | |
120 | { | |
121 | *strat = PCI_DMA_BURST_INFINITY; | |
122 | *strategy_parameter = ~0UL; | |
123 | } | |
bb4a61b6 | 124 | #endif |
e24c2d96 | 125 | |
1da177e4 | 126 | /* Board-specific fixup routines. */ |
959f85f8 PM |
127 | void pcibios_fixup(void); |
128 | int pcibios_init_platform(void); | |
129 | int pcibios_map_platform_irq(struct pci_dev *dev, u8 slot, u8 pin); | |
1da177e4 LT |
130 | |
131 | #ifdef CONFIG_PCI_AUTO | |
959f85f8 | 132 | int pciauto_assign_resources(int busno, struct pci_channel *hose); |
1da177e4 LT |
133 | #endif |
134 | ||
1da177e4 LT |
135 | #endif /* __KERNEL__ */ |
136 | ||
137 | /* generic pci stuff */ | |
138 | #include <asm-generic/pci.h> | |
139 | ||
140 | /* generic DMA-mapping stuff */ | |
141 | #include <asm-generic/pci-dma-compat.h> | |
142 | ||
143 | #endif /* __ASM_SH_PCI_H */ | |
144 |