Re: [PATCH] Enable console on PCI serial devices

From: n0ano
Date: Thu Oct 16 2008 - 22:39:27 EST


On Thu, Oct 16, 2008 at 05:16:47PM -0600, Bjorn Helgaas wrote:
>...
> Did you play with "console=uart,io,0xe880,115200n8" at all?
>
> That gives you early serial console output and automatically switches
> to the matching ttyS device when it is discovered.
>
> "console=uart" doesn't have support for crystal frequency, but that
> could be added in drivers/serial/8250_early.c.
>

Yep, that was pointed out and my latest patch does just that, use the
`uart' syntax to specify I/O address and enhance it to control crystal
frequency.

We're arguing now about what to do about the `earlycon' and `earlyprintk'
parameters, I contend we should remove those as the `console=uart' is
a superset of their capabilities but there are some dissenting opinions.

--
Don Dugger
"Censeo Toto nos in Kansa esse decisse." - D. Gale
n0ano@xxxxxxxxx
Ph: 303/443-3786
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