diff options
| author | Stafford Horne <[email protected]> | 2021-05-17 20:54:52 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2021-05-20 16:35:01 +0200 |
| commit | 4bc2bd5aefd60a2837a20b1e88e89eaaa677d229 (patch) | |
| tree | 241992a1e59ccc796929c0912dad36088792464b /Documentation/admin-guide | |
| parent | 758dfe3ddcae59b337d4109331f9be39da53b0ed (diff) | |
serial: liteuart: Add support for earlycon
Most litex boards using RISC-V soft cores us the sbi earlycon, however
this is not available for non RISC-V litex SoC's. This patch enables
earlycon for liteuart which is available on all Litex SoC's making
support for earycon debugging more widely available.
Cc: Florent Kermarrec <[email protected]>
Cc: Mateusz Holenko <[email protected]>
Cc: Joel Stanley <[email protected]>
Cc: Gabriel L. Somlo <[email protected]>
Reviewed-and-tested-by: Gabriel Somlo <[email protected]>
Reviewed-by: Jiri Slaby <[email protected]>
Reviewed-by: Joel Stanley <[email protected]>
Signed-off-by: Stafford Horne <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index cb89dbdedc46..17bdf5df404c 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1092,6 +1092,11 @@ the driver will use only 32-bit accessors to read/write the device registers. + liteuart,<addr> + Start an early console on a litex serial port at the + specified address. The serial port must already be + setup and configured. Options are not yet supported. + meson,<addr> Start an early, polled-mode console on a meson serial port at the specified address. The serial port must |