diff options
| author | Julius Werner <jwerner@chromium.org> | 2019-05-06 19:23:28 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-06-04 11:24:01 +0000 |
| commit | 6d5695fac53f52e1f389f420b5428e92de5b8c9c (patch) | |
| tree | 9a29412f481ab43a21ffbe4c86190e448113f632 /src/include | |
| parent | fbec63d15f761e01c934078570acbef779e707ba (diff) | |
device_tree: Add support for aliases
This patch adds support to lookup nodes via the "/aliases" mechanism in
device trees. This may be required for overlay support (don't quite
remember tbh) and is also just a generally useful feature. It was
adapted from depthcharge's http://crosreview.com/1249703 and
http://crosreview.com/1542702.
Change-Id: I1289ab2f02c4877a2d0111040384827e2b48a34a
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32866
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/device_tree.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/include/device_tree.h b/src/include/device_tree.h index 6eaeacd6f0..e3723c86ac 100644 --- a/src/include/device_tree.h +++ b/src/include/device_tree.h @@ -146,6 +146,9 @@ struct device_tree_node *dt_find_node_by_phandle(struct device_tree_node *root, // represented as a string of '/' separated node names. struct device_tree_node *dt_find_node_by_path(struct device_tree *tree, const char *path, u32 *addrcp, u32 *sizecp, int create); +// Look up a node through an alias. +struct device_tree_node *dt_find_node_by_alias(struct device_tree *tree, + const char *alias); // Look up a node relative to a parent node, through its compatible string. struct device_tree_node *dt_find_compat(struct device_tree_node *parent, const char *compatible); // Look up the next child of a parent node, through its compatible string. It |