This form of the earlycon parameter was added by commit fb11ffe74c794a5 ("of/fdt: add FDT serial scanning for earlycon") without documentation. Signed-off-by: Scott Wood <scottwood@xxxxxxxxxxxxx> --- Documentation/kernel-parameters.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 22a4b68..d461320 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -971,6 +971,10 @@ 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 -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html