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core: Add {ofnode, dev}_translate_address functions

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Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
This commit is contained in:
Mario Six 2018-01-15 11:07:19 +01:00 • committed by Simon Glass
parent 83a462a5e3
commit 147c607448
4 changed files with 43 additions and 0 deletions
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8
drivers/core/ofnode.c
View file

@ -649,3 +649,11 @@ int ofnode_read_resource_byname(ofnode node, const char *name,
return ofnode_read_resource(node, index, res); 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);
}

5
drivers/core/read.c
View file

@ -195,3 +195,8 @@ int dev_read_resource_byname(struct udevice *dev, const char *name,
{ {
return ofnode_read_resource_byname(dev_ofnode(dev), name, res); 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);
}

13
include/dm/ofnode.h
View file

@ -652,4 +652,17 @@ int ofnode_read_resource_byname(ofnode node, const char *name,
ofnode_valid(node); \ ofnode_valid(node); \
node = ofnode_next_subnode(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 #endif

17
include/dm/read.h
View file

@ -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, int dev_read_resource_byname(struct udevice *dev, const char *name,
struct resource *res); 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 */ #else /* CONFIG_DM_DEV_READ_INLINE is enabled */
static inline int dev_read_u32_default(struct udevice *dev, 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); 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 */ #endif /* CONFIG_DM_DEV_READ_INLINE */
/** /**