Reviewed-by: Simon Glass sjg@chromium.org Signed-off-by: Mario Six mario.six@gdsys.cc ---
v1 -> v2: None
--- drivers/core/ofnode.c | 8 ++++++++ drivers/core/read.c | 5 +++++ include/dm/ofnode.h | 13 +++++++++++++ include/dm/read.h | 17 +++++++++++++++++ 4 files changed, 43 insertions(+)
diff --git a/drivers/core/ofnode.c b/drivers/core/ofnode.c index ebcf64d867..0b32f9b085 100644 --- a/drivers/core/ofnode.c +++ b/drivers/core/ofnode.c @@ -644,3 +644,11 @@ int ofnode_read_resource_byname(ofnode node, const char *name,
return ofnode_read_resource(node, index, res); } + +u64 ofnode_translate_address(ofnode node, const fdt32_t *in_addr) +{ + if (ofnode_is_np(node)) + return of_translate_address(ofnode_to_np(node), in_addr); + else + return fdt_translate_address(gd->fdt_blob, ofnode_to_offset(node), in_addr); +} diff --git a/drivers/core/read.c b/drivers/core/read.c index 08955f81fc..19207a3906 100644 --- a/drivers/core/read.c +++ b/drivers/core/read.c @@ -188,3 +188,8 @@ int dev_read_resource_byname(struct udevice *dev, const char *name, { return ofnode_read_resource_byname(dev_ofnode(dev), name, res); } + +u64 dev_translate_address(struct udevice *dev, const fdt32_t *in_addr) +{ + return ofnode_translate_address(dev_ofnode(dev), in_addr); +} diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index 8b9932a569..c359a60f95 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -652,4 +652,17 @@ int ofnode_read_resource_byname(ofnode node, const char *name, ofnode_valid(node); \ node = ofnode_next_subnode(node))
+/** + * ofnode_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. + * + * @ofnode: Device tree node 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 ofnode_translate_address(ofnode node, const fdt32_t *in_addr); #endif diff --git a/include/dm/read.h b/include/dm/read.h index d2f47a678f..d88a6c547e 100644 --- a/include/dm/read.h +++ b/include/dm/read.h @@ -410,6 +410,18 @@ 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_default(struct udevice *dev, @@ -582,6 +594,11 @@ 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 */
/** -- 2.13.6