]>
Commit | Line | Data |
---|---|---|
b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
6b884a8d GL |
2 | #ifndef __OF_ADDRESS_H |
3 | #define __OF_ADDRESS_H | |
4 | #include <linux/ioport.h> | |
99ce39e3 | 5 | #include <linux/errno.h> |
6b884a8d | 6 | #include <linux/of.h> |
fcd71d9c | 7 | #include <linux/io.h> |
6b884a8d | 8 | |
2f96593e JY |
9 | struct of_bus; |
10 | ||
29b635c0 AM |
11 | struct of_pci_range_parser { |
12 | struct device_node *node; | |
2f96593e | 13 | struct of_bus *bus; |
29b635c0 AM |
14 | const __be32 *range; |
15 | const __be32 *end; | |
bc5e522e RH |
16 | int na; |
17 | int ns; | |
29b635c0 | 18 | int pna; |
645c1386 | 19 | bool dma; |
29b635c0 | 20 | }; |
bc5e522e | 21 | #define of_range_parser of_pci_range_parser |
29b635c0 AM |
22 | |
23 | struct of_pci_range { | |
bc5e522e RH |
24 | union { |
25 | u64 pci_addr; | |
26 | u64 bus_addr; | |
27 | }; | |
29b635c0 AM |
28 | u64 cpu_addr; |
29 | u64 size; | |
30 | u32 flags; | |
31 | }; | |
bc5e522e | 32 | #define of_range of_pci_range |
29b635c0 AM |
33 | |
34 | #define for_each_of_pci_range(parser, range) \ | |
35 | for (; of_pci_range_parser_one(parser, range);) | |
bc5e522e | 36 | #define for_each_of_range for_each_of_pci_range |
29b635c0 | 37 | |
d0dfa16a RH |
38 | /* Translate a DMA address from device space to CPU space */ |
39 | extern u64 of_translate_dma_address(struct device_node *dev, | |
40 | const __be32 *in_addr); | |
41 | ||
a850a755 | 42 | #ifdef CONFIG_OF_ADDRESS |
0131d897 | 43 | extern u64 of_translate_address(struct device_node *np, const __be32 *addr); |
1f5bef30 GL |
44 | extern int of_address_to_resource(struct device_node *dev, int index, |
45 | struct resource *r); | |
6b884a8d | 46 | extern void __iomem *of_iomap(struct device_node *device, int index); |
fcd71d9c SM |
47 | void __iomem *of_io_request_and_map(struct device_node *device, |
48 | int index, const char *name); | |
6b884a8d | 49 | |
22ae782f GL |
50 | /* Extract an address from a device, returns the region size and |
51 | * the address space flags too. The PCI version uses a BAR number | |
52 | * instead of an absolute index | |
53 | */ | |
47b1e689 | 54 | extern const __be32 *of_get_address(struct device_node *dev, int index, |
22ae782f GL |
55 | u64 *size, unsigned int *flags); |
56 | ||
29b635c0 AM |
57 | extern int of_pci_range_parser_init(struct of_pci_range_parser *parser, |
58 | struct device_node *node); | |
a060c210 MG |
59 | extern int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser, |
60 | struct device_node *node); | |
29b635c0 AM |
61 | extern struct of_pci_range *of_pci_range_parser_one( |
62 | struct of_pci_range_parser *parser, | |
63 | struct of_pci_range *range); | |
92ea637e | 64 | extern bool of_dma_is_coherent(struct device_node *np); |
a850a755 | 65 | #else /* CONFIG_OF_ADDRESS */ |
fcd71d9c SM |
66 | static inline void __iomem *of_io_request_and_map(struct device_node *device, |
67 | int index, const char *name) | |
68 | { | |
69 | return IOMEM_ERR_PTR(-EINVAL); | |
70 | } | |
b1d06b60 GR |
71 | |
72 | static inline u64 of_translate_address(struct device_node *np, | |
73 | const __be32 *addr) | |
74 | { | |
75 | return OF_BAD_ADDR; | |
76 | } | |
77 | ||
47b1e689 | 78 | static inline const __be32 *of_get_address(struct device_node *dev, int index, |
a850a755 GL |
79 | u64 *size, unsigned int *flags) |
80 | { | |
81 | return NULL; | |
82 | } | |
29b635c0 AM |
83 | |
84 | static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser, | |
85 | struct device_node *node) | |
86 | { | |
a060c210 MG |
87 | return -ENOSYS; |
88 | } | |
89 | ||
90 | static inline int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser, | |
91 | struct device_node *node) | |
92 | { | |
93 | return -ENOSYS; | |
29b635c0 AM |
94 | } |
95 | ||
96 | static inline struct of_pci_range *of_pci_range_parser_one( | |
97 | struct of_pci_range_parser *parser, | |
98 | struct of_pci_range *range) | |
99 | { | |
100 | return NULL; | |
101 | } | |
18308c94 | 102 | |
92ea637e SS |
103 | static inline bool of_dma_is_coherent(struct device_node *np) |
104 | { | |
105 | return false; | |
106 | } | |
a850a755 GL |
107 | #endif /* CONFIG_OF_ADDRESS */ |
108 | ||
4acf4b9c RH |
109 | #ifdef CONFIG_OF |
110 | extern int of_address_to_resource(struct device_node *dev, int index, | |
111 | struct resource *r); | |
112 | void __iomem *of_iomap(struct device_node *node, int index); | |
113 | #else | |
114 | static inline int of_address_to_resource(struct device_node *dev, int index, | |
115 | struct resource *r) | |
116 | { | |
117 | return -EINVAL; | |
118 | } | |
119 | ||
120 | static inline void __iomem *of_iomap(struct device_node *device, int index) | |
121 | { | |
122 | return NULL; | |
123 | } | |
124 | #endif | |
2f96593e | 125 | #define of_range_parser_init of_pci_range_parser_init |
a850a755 GL |
126 | |
127 | #if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI) | |
0131d897 | 128 | extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no, |
22ae782f GL |
129 | u64 *size, unsigned int *flags); |
130 | extern int of_pci_address_to_resource(struct device_node *dev, int bar, | |
131 | struct resource *r); | |
0b0b0893 LD |
132 | extern int of_pci_range_to_resource(struct of_pci_range *range, |
133 | struct device_node *np, | |
134 | struct resource *res); | |
a850a755 | 135 | #else /* CONFIG_OF_ADDRESS && CONFIG_PCI */ |
22ae782f GL |
136 | static inline int of_pci_address_to_resource(struct device_node *dev, int bar, |
137 | struct resource *r) | |
138 | { | |
139 | return -ENOSYS; | |
140 | } | |
141 | ||
0131d897 | 142 | static inline const __be32 *of_get_pci_address(struct device_node *dev, |
22ae782f GL |
143 | int bar_no, u64 *size, unsigned int *flags) |
144 | { | |
145 | return NULL; | |
146 | } | |
0b0b0893 LD |
147 | static inline int of_pci_range_to_resource(struct of_pci_range *range, |
148 | struct device_node *np, | |
149 | struct resource *res) | |
83bbde1c LD |
150 | { |
151 | return -ENOSYS; | |
152 | } | |
a850a755 | 153 | #endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */ |
22ae782f | 154 | |
6b884a8d | 155 | #endif /* __OF_ADDRESS_H */ |