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| author | Michael Pratt <mpratt@chromium.org> | 2018-06-11 13:07:09 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2018-07-09 09:11:00 -0600 |
| commit | 90c08fa038451d6d7b7d8711bfd829b61d64c490 (patch) | |
| tree | 7cfd0d58221ae95037dea8e435ef8b55ea2898d4 /include/fdt_support.h | |
| parent | 8c5d4fd0ec222701598a27b26ab7265d4cee45a3 (diff) | |
| download | u-boot-90c08fa038451d6d7b7d8711bfd829b61d64c490.tar.gz | |
fdt: Add device tree memory bindings
Support a default memory bank, specified in reg, as well as
board-specific memory banks in subtree board-id nodes.
This allows memory information to be provided in the device tree,
rather than hard-coded in, which will make it simpler to handle
similar devices with different memory banks, as the board-id values
or masks can be used to match devices.
Signed-off-by: Michael Pratt <mpratt@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Diffstat (limited to 'include/fdt_support.h')
| -rw-r--r-- | include/fdt_support.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/fdt_support.h b/include/fdt_support.h index e6c43ea983..a9a0078af6 100644 --- a/include/fdt_support.h +++ b/include/fdt_support.h @@ -283,6 +283,16 @@ int fdt_setup_simplefb_node(void *fdt, int node, u64 base_address, u32 width, int fdt_overlay_apply_verbose(void *fdt, void *fdto); +/** + * fdt_get_cells_len() - Get the length of a type of cell in top-level nodes + * + * Returns the length of the cell type in bytes (4 or 8). + * + * @blob: Pointer to device tree blob + * @nr_cells_name: Name to lookup, e.g. "#address-cells" + */ +int fdt_get_cells_len(const void *blob, char *nr_cells_name); + #endif /* ifdef CONFIG_OF_LIBFDT */ #ifdef USE_HOSTCC |