Messages in this thread | | | Date | Thu, 7 May 2015 23:25:23 +0100 (BST) | From | "Maciej W. Rozycki" <> | Subject | Re: earlycon: no match? |
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On Thu, 7 May 2015, Peter Hurley wrote:
> > How does this overload interact with multiple `console=' options being > > present BTW, which one is considered the early console? Or do we support > > driving multiple early consoles in parallel just as we do with regular > > consoles? > > Please familiarize yourself with the existing 'console=' and 'earlycon=' > command line options documented in Documentation/kernel-parameters.txt
Thank you for your suggestion, however that documentation does not answer my questions I am afraid (and neither does serial-console.txt). Otherwise I wouldn't have asked them in the first place. If you don't know the answers either, then it's OK to say: "I don't know".
E.g. (given the parameter aliasing we have) will:
`earlycon=uart8250,io,0x3f8 console=tty0' `console=tty0 earlycon=uart8250,io,0x3f8'
do what I expect it to, that is open the UART at 0x3f8 as an early console and then hand it over to the ttyS0 device as respectively a secondary and the primary (/dev/console) regular console? I've skipped options such as baud rates for brevity.
Maciej
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