diff options
Diffstat (limited to 'include/linux/of_address.h')
| -rw-r--r-- | include/linux/of_address.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/linux/of_address.h b/include/linux/of_address.h new file mode 100644 index 000000000000..8aea06f0564c --- /dev/null +++ b/include/linux/of_address.h @@ -0,0 +1,44 @@ +#ifndef __OF_ADDRESS_H +#define __OF_ADDRESS_H +#include <linux/ioport.h> +#include <linux/of.h> + +extern u64 of_translate_address(struct device_node *np, const u32 *addr); +extern int of_address_to_resource(struct device_node *dev, int index, + struct resource *r); +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 u32 *of_get_address(struct device_node *dev, int index, + u64 *size, unsigned int *flags); + +#ifndef pci_address_to_pio +static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; } +#define pci_address_to_pio pci_address_to_pio +#endif + +#ifdef CONFIG_PCI +extern const u32 *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_PCI */ +static inline int of_pci_address_to_resource(struct device_node *dev, int bar, + struct resource *r) +{ + return -ENOSYS; +} + +static inline const u32 *of_get_pci_address(struct device_node *dev, + int bar_no, u64 *size, unsigned int *flags) +{ + return NULL; +} +#endif /* CONFIG_PCI */ + + +#endif /* __OF_ADDRESS_H */ + |