diff options
| author | Thierry Reding | 2019-03-21 19:10:01 +0100 |
|---|---|---|
| committer | Simon Glass | 2019-04-11 20:10:50 -0600 |
| commit | 8153d53b9340e652f78efbf99979d951ba853458 (patch) | |
| tree | d6b40768826194ba248e97cd35e0ab905e7021bb | |
| parent | 4f253ad064689bc55eaba1c3e7d42f0f358a72c3 (diff) | |
fdtdec: Implement fdtdec_set_phandle()
This function can be used to set a phandle for a given node.
Signed-off-by: Thierry Reding <treding@nvidia.com>
| -rw-r--r-- | include/fdtdec.h | 11 | ||||
| -rw-r--r-- | lib/fdtdec.c | 7 |
2 files changed, 18 insertions, 0 deletions
diff --git a/include/fdtdec.h b/include/fdtdec.h index 3f7538734a0..ba7f873b89e 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -1021,6 +1021,17 @@ int fdtdec_setup_memory_banksize_fdt(const void *blob); int fdtdec_setup_memory_banksize(void); /** + * fdtdec_set_phandle() - sets the phandle of a given node + * + * @param blob FDT blob + * @param node offset in the FDT blob of the node whose phandle is to + * be set + * @param phandle phandle to set for the given node + * @return 0 on success or a negative error code on failure + */ +int fdtdec_set_phandle(void *blob, int node, uint32_t phandle); + +/** * Set up the device tree ready for use */ int fdtdec_setup(void); diff --git a/lib/fdtdec.c b/lib/fdtdec.c index a51dc5e9867..079a9b18aaa 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -1261,6 +1261,13 @@ __weak void *board_fdt_blob_setup(void) } #endif +int fdtdec_set_phandle(void *blob, int node, uint32_t phandle) +{ + fdt32_t value = cpu_to_fdt32(phandle); + + return fdt_setprop(blob, node, "phandle", &value, sizeof(value)); +} + int fdtdec_setup(void) { #if CONFIG_IS_ENABLED(OF_CONTROL) |