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Docs/kernel-parameters: Add earlycon devicetree usage 

This form of the earlycon parameter was added by commit fb11ffe74c
("of/fdt: add FDT serial scanning for earlycon") without documentation.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Scott Wood 2015-09-14 19:54:07 -05:00 committed by Jonathan Corbet
parent e12d74623d
commit 5664f7645d
1 changed files with 4 additions and 0 deletions
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4
Documentation/kernel-parameters.txt
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@ -973,6 +973,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
earlycon= [KNL] Output early console device and options.
When used with no options, the early console is
determined by the stdout-path property in device
tree's chosen node.
cdns,<addr>
Start an early, polled-mode console on a cadence serial
port at the specified address. The cadence serial port