1 /* SPDX-License-Identifier: GPL-2.0 */
4 #include <linux/ioport.h>
5 #include <linux/errno.h>
9 struct of_pci_range_parser {
10 struct device_node *node;
25 #define for_each_of_pci_range(parser, range) \
26 for (; of_pci_range_parser_one(parser, range);)
28 /* Translate a DMA address from device space to CPU space */
29 extern u64 of_translate_dma_address(struct device_node *dev,
30 const __be32 *in_addr);
32 #ifdef CONFIG_OF_ADDRESS
33 extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
34 extern int of_address_to_resource(struct device_node *dev, int index,
36 extern void __iomem *of_iomap(struct device_node *device, int index);
37 void __iomem *of_io_request_and_map(struct device_node *device,
38 int index, const char *name);
40 /* Extract an address from a device, returns the region size and
41 * the address space flags too. The PCI version uses a BAR number
42 * instead of an absolute index
44 extern const __be32 *of_get_address(struct device_node *dev, int index,
45 u64 *size, unsigned int *flags);
47 extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
48 struct device_node *node);
49 extern int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser,
50 struct device_node *node);
51 extern struct of_pci_range *of_pci_range_parser_one(
52 struct of_pci_range_parser *parser,
53 struct of_pci_range *range);
54 extern bool of_dma_is_coherent(struct device_node *np);
55 #else /* CONFIG_OF_ADDRESS */
56 static inline void __iomem *of_io_request_and_map(struct device_node *device,
57 int index, const char *name)
59 return IOMEM_ERR_PTR(-EINVAL);
62 static inline u64 of_translate_address(struct device_node *np,
68 static inline const __be32 *of_get_address(struct device_node *dev, int index,
69 u64 *size, unsigned int *flags)
74 static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
75 struct device_node *node)
80 static inline int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser,
81 struct device_node *node)
86 static inline struct of_pci_range *of_pci_range_parser_one(
87 struct of_pci_range_parser *parser,
88 struct of_pci_range *range)
93 static inline bool of_dma_is_coherent(struct device_node *np)
97 #endif /* CONFIG_OF_ADDRESS */
100 extern int of_address_to_resource(struct device_node *dev, int index,
102 void __iomem *of_iomap(struct device_node *node, int index);
104 static inline int of_address_to_resource(struct device_node *dev, int index,
110 static inline void __iomem *of_iomap(struct device_node *device, int index)
116 #if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
117 extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
118 u64 *size, unsigned int *flags);
119 extern int of_pci_address_to_resource(struct device_node *dev, int bar,
121 extern int of_pci_range_to_resource(struct of_pci_range *range,
122 struct device_node *np,
123 struct resource *res);
124 #else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
125 static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
131 static inline const __be32 *of_get_pci_address(struct device_node *dev,
132 int bar_no, u64 *size, unsigned int *flags)
136 static inline int of_pci_range_to_resource(struct of_pci_range *range,
137 struct device_node *np,
138 struct resource *res)
142 #endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
144 #endif /* __OF_ADDRESS_H */