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| author | Simon Glass <sjg@chromium.org> | 2023-09-26 08:14:43 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-10-06 14:38:13 -0400 |
| commit | 62b1db33778611a3023d1e3a98e869b495edc9ca (patch) | |
| tree | a02bcbcf8555af6897638135af9662a53ff591af /include/dm | |
| parent | 67fb2159fb3438359fa0fc3f8cb491ffe8d57c0f (diff) | |
| download | u-boot-62b1db33778611a3023d1e3a98e869b495edc9ca.zip u-boot-62b1db33778611a3023d1e3a98e869b495edc9ca.tar.gz u-boot-62b1db33778611a3023d1e3a98e869b495edc9ca.tar.bz2 | |
dm: core: Add a way to convert a devicetree to a dtb
Add a way to flatten a devicetree into binary form. For livetree this
involves generating the devicetree using fdt_property() and other calls.
For flattree it simply involves providing the buffer containing the tree.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/ofnode.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/dm/ofnode.h b/include/dm/ofnode.h index f1ee02c..a8605fb 100644 --- a/include/dm/ofnode.h +++ b/include/dm/ofnode.h @@ -17,6 +17,7 @@ /* Enable checks to protect against invalid calls */ #undef OF_CHECKS +struct abuf; struct resource; #include <dm/ofnode_decl.h> @@ -137,6 +138,18 @@ static inline ofnode noffset_to_ofnode(ofnode other_node, int of_offset) int oftree_new(oftree *treep); /** + * oftree_to_fdt() - Convert an oftree to a flat FDT + * + * @tree: tree to flatten (if livetree) or copy (if not) + * @buf: Returns inited buffer containing the newly created flat tree. Note + * that for flat tree the buffer is not allocated. In either case the caller + * must call abut_uninit() to free any memory used by @buf + * Return: 0 on success, -ENOMEM if out of memory, other -ve value for any other + * error + */ +int oftree_to_fdt(oftree tree, struct abuf *buf); + +/** * ofnode_to_np() - convert an ofnode to a live DT node pointer * * This cannot be called if the reference contains an offset. |