1 #ifndef __OF_ADDRESS_H 2 #define __OF_ADDRESS_H 3 #include <linux/ioport.h> 4 #include <linux/errno.h> 5 #include <linux/of.h> 6 7 #ifdef CONFIG_OF_ADDRESS 8 extern u64 of_translate_address(struct device_node *np, const __be32 *addr); 9 extern bool of_can_translate_address(struct device_node *dev); 10 extern int of_address_to_resource(struct device_node *dev, int index, 11 struct resource *r); 12 extern struct device_node *of_find_matching_node_by_address( 13 struct device_node *from, 14 const struct of_device_id *matches, 15 u64 base_address); 16 extern void __iomem *of_iomap(struct device_node *device, int index); 17 18 /* Extract an address from a device, returns the region size and 19 * the address space flags too. The PCI version uses a BAR number 20 * instead of an absolute index 21 */ 22 extern const __be32 *of_get_address(struct device_node *dev, int index, 23 u64 *size, unsigned int *flags); 24 25 #ifndef pci_address_to_pio 26 static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; } 27 #define pci_address_to_pio pci_address_to_pio 28 #endif 29 30 #else /* CONFIG_OF_ADDRESS */ 31 static inline int of_address_to_resource(struct device_node *dev, int index, 32 struct resource *r) 33 { 34 return -EINVAL; 35 } 36 static inline struct device_node *of_find_matching_node_by_address( 37 struct device_node *from, 38 const struct of_device_id *matches, 39 u64 base_address) 40 { 41 return NULL; 42 } 43 static inline void __iomem *of_iomap(struct device_node *device, int index) 44 { 45 return NULL; 46 } 47 static inline const __be32 *of_get_address(struct device_node *dev, int index, 48 u64 *size, unsigned int *flags) 49 { 50 return NULL; 51 } 52 #endif /* CONFIG_OF_ADDRESS */ 53 54 55 #if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI) 56 extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no, 57 u64 *size, unsigned int *flags); 58 extern int of_pci_address_to_resource(struct device_node *dev, int bar, 59 struct resource *r); 60 #else /* CONFIG_OF_ADDRESS && CONFIG_PCI */ 61 static inline int of_pci_address_to_resource(struct device_node *dev, int bar, 62 struct resource *r) 63 { 64 return -ENOSYS; 65 } 66 67 static inline const __be32 *of_get_pci_address(struct device_node *dev, 68 int bar_no, u64 *size, unsigned int *flags) 69 { 70 return NULL; 71 } 72 #endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */ 73 74 #endif /* __OF_ADDRESS_H */ 75 76