diff options
Diffstat (limited to 'include/dm/read.h')
| -rw-r--r-- | include/dm/read.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/dm/read.h b/include/dm/read.h index 8114037e97..f1f0dfd4a3 100644 --- a/include/dm/read.h +++ b/include/dm/read.h @@ -46,6 +46,16 @@ static inline bool dev_of_valid(struct udevice *dev) #ifndef CONFIG_DM_DEV_READ_INLINE /** + * dev_read_u32() - read a 32-bit integer from a device's DT property + * + * @dev: device to read DT property from + * @propname: name of the property to read from + * @outp: place to put value (if found) + * @return 0 if OK, -ve on error + */ +int dev_read_u32(struct udevice *dev, const char *propname, u32 *outp); + +/** * dev_read_u32_default() - read a 32-bit integer from a device's DT property * * @dev: device to read DT property from @@ -410,8 +420,26 @@ int dev_read_resource(struct udevice *dev, uint index, struct resource *res); int dev_read_resource_byname(struct udevice *dev, const char *name, struct resource *res); +/** + * dev_translate_address() - Tranlate a device-tree address + * + * Translate an address from the device-tree into a CPU physical address. This + * function walks up the tree and applies the various bus mappings along the + * way. + * + * @dev: device giving the context in which to translate the address + * @in_addr: pointer to the address to translate + * @return the translated address; OF_BAD_ADDR on error + */ +u64 dev_translate_address(struct udevice *dev, const fdt32_t *in_addr); #else /* CONFIG_DM_DEV_READ_INLINE is enabled */ +static inline int dev_read_u32(struct udevice *dev, + const char *propname, u32 *outp) +{ + return ofnode_read_u32(dev_ofnode(dev), propname, outp); +} + static inline int dev_read_u32_default(struct udevice *dev, const char *propname, int def) { @@ -582,6 +610,11 @@ static inline int dev_read_resource_byname(struct udevice *dev, return ofnode_read_resource_byname(dev_ofnode(dev), name, res); } +static inline u64 dev_translate_address(struct udevice *dev, const fdt32_t *in_addr) +{ + return ofnode_translate_address(dev_ofnode(dev), in_addr); +} + #endif /* CONFIG_DM_DEV_READ_INLINE */ /** |