Messages in this thread | | | Date | Sun, 3 May 2015 23:10:54 +0200 | From | Robert Schwebel <> | Subject | earlycon: no match? |
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Hi Peter,
with 4.1-rc1, my boxes with early console enabled show something like this (the example is vexpress, but it for example also happens on an AM335x board):
earlycon: no match for ttyAMA0,38400n8
The box was booted with "console=ttyAMA0,38400n8" on the commandline. If I understand this right, the code in drivers/tty/serial/earlycon.c calls setup_earlycon() with the string above ("ttyAMA0,38400n8") and fails to find that string in the "names" part of the __earlycon_table, because for the pl011 component on vexpress, the early console was registered in drivers/tty/serial/amba-pl011.c with:
OF_EARLYCON_DECLARE(pl011, "arm,pl011", pl011_early_console_setup); ^^^^^ name
So isn't that trying to match "ttyAMA0" against "arm,pl011"? I have the feeling that I didn't understand the logic behind that.
Can you elaborate about how this is supposed to work correctly?
Thanks, rsc -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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