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-rw-r--r--doc/README.silent14
1 files changed, 10 insertions, 4 deletions
diff --git a/doc/README.silent b/doc/README.silent
index a26e3df0da..70202cece9 100644
--- a/doc/README.silent
+++ b/doc/README.silent
@@ -1,9 +1,15 @@
The config option CONFIG_SILENT_CONSOLE can be used to quiet messages
on the console. If the option has been enabled, the output can be
-silenced by setting the environment variable "silent". The variable
-is latched into the global data at an early stage in the boot process
-so deleting it with "setenv" will not take effect until the system is
-restarted.
+silenced by setting the environment variable "silent".
+
+- CONFIG_SILENT_CONSOLE_UPDATE_ON_SET
+ When the "silent" variable is changed with env set, the change
+ will take effect immediately.
+
+- CONFIG_SILENT_CONSOLE_UPDATE_ON_RELOC
+ Some environments are not available until relocation (e.g. NAND)
+ so this will make the value in the flash env take effect at
+ relocation.
The following actions are taken if "silent" is set at boot time:
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