l...@gnu.org (Ludovic Courtès) writes:
> Sree Harsha Totakura <sreehar...@totakura.in> skribis:
>
>> On 06/25/2014 09:26 PM, Ludovic Courtès wrote:
>>> 1. Serial console is unavailable when booting. I thought that’d be
>>> addressed by explicitly setting CONFIG_SERIAL_8250=y etc. (see
>>> below for the list), but that’s not enough. What am I missing?
>>
>> My kernel config has the following for serial console:
>> CONFIG_SERIAL_NONSTANDARD=y
>> CONFIG_SERIAL_8250=y
>> CONFIG_SERIAL_8250_PNP=y
>> CONFIG_SERIAL_8250_CONSOLE=y
>> CONFIG_SERIAL_8250_DMA=y
>> CONFIG_SERIAL_8250_PCI=y
>> CONFIG_SERIAL_8250_EXTENDED=y
>> CONFIG_SERIAL_8250_MANY_PORTS=y
>> CONFIG_SERIAL_8250_SHARE_IRQ=y
>> CONFIG_SERIAL_8250_RSA=y
>> CONFIG_SERIAL_CORE=y
>> CONFIG_SERIAL_CORE_CONSOLE=y
>
> The one I built has all these as well. :-/
I think you need to pass something like "console=ttyS0" as a kernel
command line option. See Documentation/serial-console.txt in the
linux-libre source tree.
Mark
