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authorStefan Agner <stefan@agner.ch>2015-10-17 00:45:55 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-17 21:18:30 -0700
commit1d59b382f1c4111933ab56166eb520ac98676b22 (patch)
tree90c029df49ae0b5858b6f5728112e208fc0e05d2 /Documentation/kernel-parameters.txt
parent6200cbaf62d481007cb07e73f67da77bc161ae96 (diff)
serial: fsl_lpuart: add earlycon support
Add support for DT and command line based earlycon support for lpuart and lpuart32 used on Freescale Vybrid and and QorIQ LS1021A processors. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 22a4b687ea5b..8d9dd534c6a8 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1023,6 +1023,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
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
+ found on Freescale Vybrid and QorIQ LS1021A processors.
+ A valid base address must be provided, and the serial
+ port must already be setup and configured.
+
earlyprintk= [X86,SH,BLACKFIN,ARM,M68k]
earlyprintk=vga
earlyprintk=efi

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