#ifndef __OF_ADDRESS_H #define __OF_ADDRESS_H #include <linux/ioport.h> #include <linux/errno.h> #include <linux/of.h> struct of_pci_range_parser { struct device_node *node; const __be32 *range; const __be32 *end; int np; int pna; }; struct of_pci_range { u32 pci_space; u64 pci_addr; u64 cpu_addr; u64 size; u32 flags; }; #define for_each_of_pci_range(parser, range) \ for (; of_pci_range_parser_one(parser, range);) static inline void of_pci_range_to_resource(struct of_pci_range *range, struct device_node *np, struct resource *res) { res->flags = range->flags; res->start = range->cpu_addr; res->end = range->cpu_addr + range->size - 1; res->parent = res->child = res->sibling = NULL; res->name = np->full_name; } /* Translate a DMA address from device space to CPU space */ extern u64 of_translate_dma_address(struct device_node *dev, const __be32 *in_addr); #ifdef CONFIG_OF_ADDRESS extern u64 of_translate_address(struct device_node *np, const __be32 *addr); extern bool of_can_translate_address(struct device_node *dev); extern int of_address_to_resource(struct device_node *dev, int index, struct resource *r); extern struct device_node *of_find_matching_node_by_address( struct device_node *from, const struct of_device_id *matches, u64 base_address); extern void __iomem *of_iomap(struct device_node *device, int index); /* Extract an address from a device, returns the region size and * the address space flags too. The PCI version uses a BAR number * instead of an absolute index */ extern const __be32 *of_get_address(struct device_node *dev, int index, u64 *size, unsigned int *flags); extern unsigned long pci_address_to_pio(phys_addr_t addr); extern int of_pci_range_parser_init(struct of_pci_range_parser *parser, struct device_node *node); extern struct of_pci_range *of_pci_range_parser_one( struct of_pci_range_parser *parser, struct of_pci_range *range); #else /* CONFIG_OF_ADDRESS */ static inline struct device_node *of_find_matching_node_by_address( struct device_node *from, const struct of_device_id *matches, u64 base_address) { return NULL; } static inline const __be32 *of_get_address(struct device_node *dev, int index, u64 *size, unsigned int *flags) { return NULL; } static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser, struct device_node *node) { return -1; } static inline struct of_pci_range *of_pci_range_parser_one( struct of_pci_range_parser *parser, struct of_pci_range *range) { return NULL; } #endif /* CONFIG_OF_ADDRESS */ #ifdef CONFIG_OF extern int of_address_to_resource(struct device_node *dev, int index, struct resource *r); void __iomem *of_iomap(struct device_node *node, int index); #else static inline int of_address_to_resource(struct device_node *dev, int index, struct resource *r) { return -EINVAL; } static inline void __iomem *of_iomap(struct device_node *device, int index) { return NULL; } #endif #if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI) extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, unsigned int *flags); extern int of_pci_address_to_resource(struct device_node *dev, int bar, struct resource *r); #else /* CONFIG_OF_ADDRESS && CONFIG_PCI */ static inline int of_pci_address_to_resource(struct device_node *dev, int bar, struct resource *r) { return -ENOSYS; } static inline const __be32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, unsigned int *flags) { return NULL; } #endif /* CONFIG_OF_ADDRESS && CONFIG_PCI */ #endif /* __OF_ADDRESS_H */