|author||Philipp Tomsich <firstname.lastname@example.org>||2018-05-24 17:15:51 +0200|
|committer||Christoph Muellner <email@example.com>||2019-04-05 21:36:43 +0200|
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 <firstname.lastname@example.org> Tested-by: Klaus Goger <email@example.com>
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/chosen.txt b/doc/device-tree-bindings/chosen.txt
index c96b8f7109..da7b4e6c45 100644
@@ -73,3 +73,13 @@ Example
u-boot,spl-boot-order = "same-as-spl", &sdmmc, "/sdhci@fe330000";
+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.