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;
18 #define of_range_parser of_pci_range_parser
29 #define of_range of_pci_range
31 #define for_each_of_pci_range(parser, range) \
32 for (; of_pci_range_parser_one(parser, range);)
33 #define for_each_of_range for_each_of_pci_range
35 /* Translate a DMA address from device space to CPU space */
36 extern u64 of_translate_dma_address(struct device_node *dev,
37 const __be32 *in_addr);
39 #ifdef CONFIG_OF_ADDRESS
40 extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
41 extern int of_address_to_resource(struct device_node *dev, int index,
43 extern void __iomem *of_iomap(struct device_node *device, int index);
44 void __iomem *of_io_request_and_map(struct device_node *device,
45 int index, const char *name);
47 /* Extract an address from a device, returns the region size and
48 * the address space flags too. The PCI version uses a BAR number
49 * instead of an absolute index
51 extern const __be32 *of_get_address(struct device_node *dev, int index,
52 u64 *size, unsigned int *flags);
54 extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
55 struct device_node *node);
56 extern int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser,
57 struct device_node *node);
58 extern struct of_pci_range *of_pci_range_parser_one(
59 struct of_pci_range_parser *parser,
60 struct of_pci_range *range);
61 extern bool of_dma_is_coherent(struct device_node *np);
62 #else /* CONFIG_OF_ADDRESS */
63 static inline void __iomem *of_io_request_and_map(struct device_node *device,
64 int index, const char *name)
66 return IOMEM_ERR_PTR(-EINVAL);
69 static inline u64 of_translate_address(struct device_node *np,
75 static inline const __be32 *of_get_address(struct device_node *dev, int index,
76 u64 *size, unsigned int *flags)
81 static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
82 struct device_node *node)
87 static inline int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser,
88 struct device_node *node)
93 static inline struct of_pci_range *of_pci_range_parser_one(
94 struct of_pci_range_parser *parser,
95 struct of_pci_range *range)
100 static inline bool of_dma_is_coherent(struct device_node *np)
104 #endif /* CONFIG_OF_ADDRESS */
107 extern int of_address_to_resource(struct device_node *dev, int index,
109 void __iomem *of_iomap(struct device_node *node, int index);
111 static inline int of_address_to_resource(struct device_node *dev, int index,
117 static inline void __iomem *of_iomap(struct device_node *device, int index)
123 #if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
124 extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
125 u64 *size, unsigned int *flags);
126 extern int of_pci_address_to_resource(struct device_node *dev, int bar,
128 extern int of_pci_range_to_resource(struct of_pci_range *range,
129 struct device_node *np,
130 struct resource *res);
131 #else /* CONFIG_OF_ADDRESS && CONFIG_PCI */
132 static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
138 static inline const __be32 *of_get_pci_address(struct device_node *dev,
139 int bar_no, u64 *size, unsigned int *flags)
143 static inline int of_pci_range_to_resource(struct of_pci_range *range,
144 struct device_node *np,
145 struct resource *res)
149 #endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */
151 #endif /* __OF_ADDRESS_H */