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authorStephen Warren <swarren@nvidia.com>2016-08-05 09:47:51 -0600
committerSimon Glass <sjg@chromium.org>2016-08-12 09:20:27 -0600
commit6e06acb73248e32457064d8fe820cbc217c45f3f (patch)
tree106717d17611a41e530114091fd12693233759bc /include/fdtdec.h
parent11e44fc6bda2248271d26a8488f5efe189b55a30 (diff)
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fdt: allow fdtdec_get_addr_size_*() to translate addresses
Some code may want to read reg values from DT, but from nodes that aren't associated with DM devices, so using dev_get_addr_index() isn't appropriate. In this case, fdtdec_get_addr_size_*() are the functions to use. However, "translation" (via the chain of ranges properties in parent nodes) may still be desirable. Add a function parameter to request that, and implement it. Update all call sites to default to the original behaviour. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Squashed in build fix from Stephen: Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/fdtdec.h')
-rw-r--r--include/fdtdec.h14
1 files changed, 11 insertions, 3 deletions
diff --git a/include/fdtdec.h b/include/fdtdec.h
index 70ea0bf..aeb6bab 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -297,11 +297,13 @@ int fdtdec_next_compatible_subnode(const void *blob, int node,
* @param na the number of cells used to represent an address
* @param ns the number of cells used to represent a size
* @param sizep a pointer to store the size into. Use NULL if not required
+ * @param translate Indicates whether to translate the returned value
+ * using the parent node's ranges property.
* @return address, if found, or FDT_ADDR_T_NONE if not
*/
fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node,
const char *prop_name, int index, int na, int ns,
- fdt_size_t *sizep);
+ fdt_size_t *sizep, bool translate);
/*
* Look up an address property in a node and return the parsed address, and
@@ -317,10 +319,13 @@ fdt_addr_t fdtdec_get_addr_size_fixed(const void *blob, int node,
* @param prop_name name of property to find
* @param index which address to retrieve from a list of addresses. Often 0.
* @param sizep a pointer to store the size into. Use NULL if not required
+ * @param translate Indicates whether to translate the returned value
+ * using the parent node's ranges property.
* @return address, if found, or FDT_ADDR_T_NONE if not
*/
fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent,
- int node, const char *prop_name, int index, fdt_size_t *sizep);
+ int node, const char *prop_name, int index, fdt_size_t *sizep,
+ bool translate);
/*
* Look up an address property in a node and return the parsed address, and
@@ -340,10 +345,13 @@ fdt_addr_t fdtdec_get_addr_size_auto_parent(const void *blob, int parent,
* @param prop_name name of property to find
* @param index which address to retrieve from a list of addresses. Often 0.
* @param sizep a pointer to store the size into. Use NULL if not required
+ * @param translate Indicates whether to translate the returned value
+ * using the parent node's ranges property.
* @return address, if found, or FDT_ADDR_T_NONE if not
*/
fdt_addr_t fdtdec_get_addr_size_auto_noparent(const void *blob, int node,
- const char *prop_name, int index, fdt_size_t *sizep);
+ const char *prop_name, int index, fdt_size_t *sizep,
+ bool translate);
/*
* Look up an address property in a node and return the parsed address.