mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
a6cccaea5a
made CONFIG_SILENT_CONSOLE usable on all architectures * Disable date command on TQM866M - there is no RTC on MPC866
20 lines
985 B
Text
20 lines
985 B
Text
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.
|
|
|
|
The following actions are taken if "silent" is set at boot time:
|
|
|
|
- Until the console devices have been initialized, output has to be
|
|
suppressed by testing for the flag "GD_FLG_SILENT" in "gd->flags".
|
|
|
|
- When the console devices have been initialized, "stdout" and
|
|
"stderr" are set to "nulldev", so subsequent messages are
|
|
suppressed automatically. Make sure to enable "nulldev" by
|
|
#defining CFG_DEVICE_NULLDEV in your board config file.
|
|
|
|
- When booting a linux kernel, the "bootargs" are fixed up so that
|
|
the argument "console=" will be in the command line, no matter how
|
|
it was set in "bootargs" before.
|