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| author | Philipp Tomsich | 2018-05-24 17:15:51 +0200 |
|---|---|---|
| committer | Philipp Tomsich | 2018-07-21 01:55:26 +0200 |
| commit | 2aa4abc1bd516ac8d741160bbed082761c8dc163 (patch) | |
| tree | 68a77ff3fcaa223692893bafb4c5ecb23fdee159 /doc | |
| parent | de5dd4c4e38575c4e27d56a5ed2bb3975b366830 (diff) | |
spl: document 'chosen/u-boot, spl-boot-device'
To let the full U-Boot know where it was booted from (i.e. which of
the entries in /chosen/u-boot,spl-boot-order' contained a valid
image), we define (and document) /chosen/u-boot,spl-boot-device as the
property that could/should automatically be injected by SPL.
This commit only contains a documentation change, which documents the
new property and the intended usage.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/chosen.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/chosen.txt b/doc/device-tree-bindings/chosen.txt index c96b8f71090..da7b4e6c451 100644 --- a/doc/device-tree-bindings/chosen.txt +++ b/doc/device-tree-bindings/chosen.txt @@ -73,3 +73,13 @@ Example u-boot,spl-boot-order = "same-as-spl", &sdmmc, "/sdhci@fe330000"; }; }; + +u-boot,spl-boot-device property +------------------------------- + +This property is a companion-property to the u-boot,spl-boot-order and +will be injected automatically by the SPL stage to notify a later stage +of where said later stage was booted from. + +You should not define this property yourself in the device-tree, as it +may be overwritten without warning. |