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1da177e4 LT |
1 | #ifndef __ASM_SH64_PCI_H |
2 | #define __ASM_SH64_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 | ||
14 | /* | |
15 | * These are currently the correct values for the STM overdrive board | |
16 | * We need some way of setting this on a board specific way, it will | |
17 | * not be the same on other boards I think | |
18 | */ | |
19 | #if defined(CONFIG_CPU_SUBTYPE_SH5_101) || defined(CONFIG_CPU_SUBTYPE_SH5_103) | |
20 | #define PCIBIOS_MIN_IO 0x2000 | |
21 | #define PCIBIOS_MIN_MEM 0x40000000 | |
22 | #endif | |
23 | ||
24 | extern void pcibios_set_master(struct pci_dev *dev); | |
25 | ||
26 | /* | |
27 | * Set penalize isa irq function | |
28 | */ | |
29 | static inline void pcibios_penalize_isa_irq(int irq) | |
30 | { | |
31 | /* We don't do dynamic PCI IRQ allocation */ | |
32 | } | |
33 | ||
34 | /* Dynamic DMA mapping stuff. | |
35 | * SuperH has everything mapped statically like x86. | |
36 | */ | |
37 | ||
38 | /* The PCI address space does equal the physical memory | |
39 | * address space. The networking and block device layers use | |
40 | * this boolean for bounce buffer decisions. | |
41 | */ | |
42 | #define PCI_DMA_BUS_IS_PHYS (1) | |
43 | ||
44 | #include <linux/types.h> | |
45 | #include <linux/slab.h> | |
46 | #include <asm/scatterlist.h> | |
47 | #include <linux/string.h> | |
48 | #include <asm/io.h> | |
49 | ||
50 | /* pci_unmap_{single,page} being a nop depends upon the | |
51 | * configuration. | |
52 | */ | |
53 | #ifdef CONFIG_SH_PCIDMA_NONCOHERENT | |
54 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ | |
55 | dma_addr_t ADDR_NAME; | |
56 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ | |
57 | __u32 LEN_NAME; | |
58 | #define pci_unmap_addr(PTR, ADDR_NAME) \ | |
59 | ((PTR)->ADDR_NAME) | |
60 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ | |
61 | (((PTR)->ADDR_NAME) = (VAL)) | |
62 | #define pci_unmap_len(PTR, LEN_NAME) \ | |
63 | ((PTR)->LEN_NAME) | |
64 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ | |
65 | (((PTR)->LEN_NAME) = (VAL)) | |
66 | #else | |
67 | #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) | |
68 | #define DECLARE_PCI_UNMAP_LEN(LEN_NAME) | |
69 | #define pci_unmap_addr(PTR, ADDR_NAME) (0) | |
70 | #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) | |
71 | #define pci_unmap_len(PTR, LEN_NAME) (0) | |
72 | #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) | |
73 | #endif | |
74 | ||
75 | /* Not supporting more than 32-bit PCI bus addresses now, but | |
76 | * must satisfy references to this function. Change if needed. | |
77 | */ | |
78 | #define pci_dac_dma_supported(pci_dev, mask) (0) | |
79 | ||
80 | /* These macros should be used after a pci_map_sg call has been done | |
81 | * to get bus addresses of each of the SG entries and their lengths. | |
82 | * You should only work with the number of sg entries pci_map_sg | |
83 | * returns, or alternatively stop on the first sg_dma_len(sg) which | |
84 | * is 0. | |
85 | */ | |
86 | #define sg_dma_address(sg) ((sg)->dma_address) | |
87 | #define sg_dma_len(sg) ((sg)->length) | |
88 | ||
89 | /* Board-specific fixup routines. */ | |
90 | extern void pcibios_fixup(void); | |
91 | extern void pcibios_fixup_irqs(void); | |
92 | ||
93 | #ifdef CONFIG_PCI_AUTO | |
94 | extern int pciauto_assign_resources(int busno, struct pci_channel *hose); | |
95 | #endif | |
96 | ||
97 | static inline void pcibios_add_platform_entries(struct pci_dev *dev) | |
98 | { | |
99 | } | |
100 | ||
101 | #endif /* __KERNEL__ */ | |
102 | ||
103 | /* generic pci stuff */ | |
104 | #include <asm-generic/pci.h> | |
105 | ||
106 | /* generic DMA-mapping stuff */ | |
107 | #include <asm-generic/pci-dma-compat.h> | |
108 | ||
109 | #endif /* __ASM_SH64_PCI_H */ | |
110 |