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| author | Jonathan Neuschäfer <j.neuschaefer@gmx.net> | 2020-02-29 14:27:48 +0100 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2020-03-02 12:51:37 -0700 |
| commit | 7fe068dba8335ff0f9ec608db9589b1fce4663e0 (patch) | |
| tree | 9a8cdfe68fecfea537923deeb67a4661e4525a4c /Documentation/admin-guide/kernel-parameters.txt | |
| parent | 0a464ea4dc1248e8e640ae0f7eee90b99732eaf0 (diff) | |
| download | lwn-7fe068dba8335ff0f9ec608db9589b1fce4663e0.tar.gz lwn-7fe068dba8335ff0f9ec608db9589b1fce4663e0.zip | |
docs: admin-guide: kernel-parameters: Document earlycon options for i.MX UARTs
drivers/tty/serial/imx.c implements these earlycon options.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20200229132750.2783-1-j.neuschaefer@gmx.net
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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 56bf9b2a9ddf..3e3fd0d19e53 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1095,6 +1095,12 @@ A valid base address must be provided, and the serial port must already be setup and configured. + ec_imx21,<addr> + ec_imx6q,<addr> + Start an early, polled-mode, output-only console on the + Freescale i.MX UART at the specified address. The UART + must already be setup and configured. + ar3700_uart,<addr> Start an early, polled-mode console on the Armada 3700 serial port at the specified |