Messages in this thread | | | Subject | Re: [PATCH v3 05/10] serial: mps2-uart: add support for early console | From | Peter Hurley <> | Date | Fri, 19 Feb 2016 07:46:57 -0800 |
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On 02/19/2016 01:57 AM, Andy Shevchenko wrote: > On Fri, Feb 19, 2016 at 11:45 AM, Vladimir Murzin > <vladimir.murzin@arm.com> wrote: >> On 16/02/16 13:09, Vladimir Murzin wrote: >>>>> +EARLYCON_DECLARE(mps2, mps2_early_console_setup); >>>>>>> +OF_EARLYCON_DECLARE(mps2, "arm,mps2-uart", mps2_early_console_setup); >>>>> >>>>> IIRC Peter Hurley mentioned you don't need to put both anymore, OF_ >>>>> one is enough. >>>>> >>> I've just tried with OF_ only and seems it works fine. Thanks for >>> pointing at it! >>> >> >> ..and the reason for that was that I had stdout pointing at uart node. >> Now, while testing v4 I end-up with configuration: >> >> 1) no EARLYCON_DECLARE in mps2-uart.c >> 2) stdout not set >> 3) cmdline has "earlycon=mps2,0x40004000 console=/dev/ttyMPS" >> >> and I don't see bootconsole, but if I avoid 1) everything works fine. >> So, I'd leave EARLYCON_DECLARE in this patch. > > Peter, what is your comment on this?
That Vladimir is not testing with linux-next.
linux-next has common framework for both command line and OF-defined earlycons.
Vladimir, if you pull in Greg's tty-next branch, then just
OF_EARLYCON_DECLARE(mps2, "arm,mps2-uart", mps2_early_console_setup);
should enable both command-line and OF-defined earlycons.
Regards, Peter Hurley
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