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| author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2016-12-11 21:42:23 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-12 11:51:24 +0100 |
| commit | ec84aa0a920192df56624961cb146947d7d9e11e (patch) | |
| tree | 1249b3ff2d740f9e444c28b5688e829ec6aa173b /Documentation/admin-guide/kernel-parameters.txt | |
| parent | 2aaa957361f9b84fb72ce0124ebb1e5835235ba8 (diff) | |
| download | lwn-ec84aa0a920192df56624961cb146947d7d9e11e.tar.gz lwn-ec84aa0a920192df56624961cb146947d7d9e11e.zip | |
tty: serial: lantiq: implement earlycon support
This allows enabling earlycon for devices with a Lantiq serial console
by splitting lqasc_serial_port_write() from lqasc_console_write() and
re-using the new function for earlycon's write callback.
The kernel-parameter name matches the driver name ("lantiq"), similar
to how other drivers implement this.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index be7c0d9506b1..52f13674bc21 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -966,6 +966,12 @@ serial port must already be setup and configured. Options are not yet supported. + lantiq,<addr> + Start an early, polled-mode console on a lantiq serial + (lqasc) port at the specified address. The serial port + must already be setup and configured. Options are not + yet supported. + lpuart,<addr> lpuart32,<addr> Use early console provided by Freescale LP UART driver |