Subject: Re: TCPA Driver for NetBSD
To: Bill Studenmund <email@example.com>
From: Jason Thorpe <firstname.lastname@example.org>
Date: 12/11/2003 09:28:43
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On Dec 11, 2003, at 9:21 AM, Bill Studenmund wrote:
> Mostly. That paragraph was before I read the spec.
> The question that remains though came up later in the note. :-) How do
> make sure the PCI->LPC bridge chip has been configured before you try
> configure the things behind it?
Right now, we assume the BIOS has done it. We have assumed this for
years. A PCI->LPC bridge is just a fancy word for "southbridge that
doesn't have ISA slot support". All those southbridge and PCI superio
chips are "PCI->LPC bridges".
> The LPC spec implies that devices on it should use ACPI for
> so the question may turn into how does ACPI tell us to configure the
> bridge, and how do we ensure that the LPC bridge is configured before
> (ACPI) devices behind it try to probe?
I suggest you read the ACPI spec. Keep it in your bathroom.
-- Jason R. Thorpe <email@example.com>
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