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Date: Tue, 31 Jul 2001 23:39:11 -0400 (EDT)
From: Ignacio Vazquez-Abrams <ignacio@openservices.net>
To: Linux kernel development list <linux-kernel@vger.kernel.org>
Subject: Re: Support for serial console on legacy free machines
In-Reply-To: <m18zh4zcq5.fsf@frodo.biederman.org>
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On 31 Jul 2001, Eric W. Biederman wrote:

> Russell King <rmk@arm.linux.org.uk> writes:
>
> > No.  Console initialisation is done early, before PCI is setup.  This
> > means that the serial driver is relying on a static array of IO port
> > addresses.  At this time, the serial driver hasn't probed any ports at
> > all, so it doesn't really know what does and doesn't exist.
>
> Hmm. I hadn't realized it was poking in the dark.

At least some PCI serial cards are just UARTs at a specific I/O address and
interrupt, and the I/O adress and interrupt are (more or less) constant each
boot. Could the values of these be passed to the kernel via command-line?

-- 
Ignacio Vazquez-Abrams  <ignacio@openservices.net>

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