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![Joe Hershberger](/assets/img/avatar_default.png)
The silent variable now updates the global data flag anytime it is changed as well as after the env relocation (in case its value is different from the default env in such cases as NAND env) Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
27 lines
1.1 KiB
Plaintext
27 lines
1.1 KiB
Plaintext
The config option CONFIG_SILENT_CONSOLE can be used to quiet messages
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on the console. If the option has been enabled, the output can be
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silenced by setting the environment variable "silent".
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- CONFIG_SILENT_CONSOLE_UPDATE_ON_SET
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When the "silent" variable is changed with env set, the change
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will take effect immediately.
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- CONFIG_SILENT_CONSOLE_UPDATE_ON_RELOC
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Some environments are not available until relocation (e.g. NAND)
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so this will make the value in the flash env take effect at
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relocation.
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The following actions are taken if "silent" is set at boot time:
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- Until the console devices have been initialized, output has to be
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suppressed by testing for the flag "GD_FLG_SILENT" in "gd->flags".
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- When the console devices have been initialized, "stdout" and
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"stderr" are set to "nulldev", so subsequent messages are
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suppressed automatically. Make sure to enable "nulldev" by
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#defining CONFIG_SYS_DEVICE_NULLDEV in your board config file.
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- When booting a linux kernel, the "bootargs" are fixed up so that
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the argument "console=" will be in the command line, no matter how
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it was set in "bootargs" before.
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