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-rw-r--r--doc/device-tree-bindings/chosen.txt10
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
--- 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.