Re: Which is better to specify console, "console= " or "stdout-path" ?

On 10/21/2015 04:58 AM, Sudeep Holla wrote:

On 21/10/15 06:09, Masahiro Yamada wrote:

quoted

I think there exist two ways to specify the console port and baudrate.


[1] Specify console in bootargs

   chosen {
         bootargs = "console=ttyS0,115200";
   };


[2] Specify stdout-path

    chosen {
          stdout-path = "serial0:115200n8";

This will work for even early/boot console, so this is better than
option [1]

Be aware that options specified via /chosen/stdout-path are
currently ignored by earlycon. There were some hiccups getting the
initial support upstream; when 4.4 hits mainline, I'll resubmit
my series that implements the of_serial i/o properties and
options passthrough to earlycon setup.

Regards,
Peter Hurley
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