diff options
| author | Michal Simek <michal.simek@xilinx.com> | 2014-09-10 12:43:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-28 21:32:37 -0400 |
| commit | 6fa62fc46e10f34aed70d2cfcf573ba8d3833e18 (patch) | |
| tree | d1ba4c97c243a577b80e920a6873681eac817992 /Documentation/kernel-parameters.txt | |
| parent | a4688bcd34bd2f4fe7fb88856c85d3091270ab53 (diff) | |
| download | lwn-6fa62fc46e10f34aed70d2cfcf573ba8d3833e18.tar.gz lwn-6fa62fc46e10f34aed70d2cfcf573ba8d3833e18.zip | |
serial: cadence: Add generic earlycon support
Add earlycon support for the cadence serial port.
This is based on recent patches:
"tty/serial: pl011: add generic earlycon support"
(sha1: 0d3c673e7881e691991b2a4745bd4f149603baa2)
"tty/serial: add arm/arm64 semihosting earlycon"
(sha1: d50d7269ebcb438afa346cdffce0f4e2a1b9e831)
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 10d51c2f10d7..adc1cd7c3bc7 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -921,6 +921,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. earlycon= [KNL] Output early console device and options. + cdns,<addr> + Start an early, polled-mode console on a cadence serial + port at the specified address. The cadence serial port + must already be setup and configured. Options are not + yet supported. + uart[8250],io,<addr>[,options] uart[8250],mmio,<addr>[,options] uart[8250],mmio32,<addr>[,options] |