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authorStephen Boyd <sboyd@codeaurora.org>2014-09-15 17:22:51 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-09-28 21:49:48 -0400
commit0efe72963409739778e93d8e2046305bc8310e83 (patch)
tree24db739e3d0646205618eeca9c77004cfb55b134 /Documentation/kernel-parameters.txt
parenta86713b1536c818972675e6dd8c6e738f0379f1d (diff)
downloadlwn-0efe72963409739778e93d8e2046305bc8310e83.tar.gz
lwn-0efe72963409739778e93d8e2046305bc8310e83.zip
tty: serial: msm: Add earlycon support
Add support for DT based and command line based early console on platforms with the msm serial hardware. Cc: Rob Herring <robh@kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt12
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index adc1cd7c3bc7..67e93f139b57 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -942,6 +942,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
must already be setup and configured. Options are not
yet supported.
+ msm_serial,<addr>
+ Start an early, polled-mode console on an msm serial
+ port at the specified address. The serial port
+ must already be setup and configured. Options are not
+ yet supported.
+
+ msm_serial_dm,<addr>
+ Start an early, polled-mode console on an msm serial
+ dm port at the specified address. The serial port
+ must already be setup and configured. Options are not
+ yet supported.
+
smh Use ARM semihosting calls for early console.
earlyprintk= [X86,SH,BLACKFIN,ARM,M68k]