diff options
Diffstat (limited to 'include/asm-sh64/pci.h')
-rw-r--r-- | include/asm-sh64/pci.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/include/asm-sh64/pci.h b/include/asm-sh64/pci.h new file mode 100644 index 000000000000..8cc14e139750 --- /dev/null +++ b/include/asm-sh64/pci.h | |||
@@ -0,0 +1,110 @@ | |||
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 | |||