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From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	linux-mips@linux-mips.org
Subject: Re: [PATCH] Change PCI host bridge setup/resources
Date: Mon, 09 Apr 2007 18:44:39 +0400	[thread overview]
Message-ID: <461A5157.3000908@ru.mvista.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0704091028010.1807@anakin>

Hello.

Geert Uytterhoeven wrote:

>>>   This is certainly *not* a PCI or [E]ISA resource. It's decoded by the 
>>>*host* bridge.

>>so ? It's an IO address no device should use, because it won't work.
>>Therefore mark it busy. That's all the code does.

> Yep, it's transparently decoded ISA (which is behind PCI) to control the PCI
> bus. Just traditional PC legacy hacks :-)

    Rubbish. I was complaining about the PCI config/data ports at 0xCF8/0xCFC 
which are by no means part of either [E]ISA or PCI. They're decoded by the 
host to PCI bridge.

WBR, Sergei

  reply	other threads:[~2007-04-09 14:43 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-04-08 11:34 [PATCH] Change PCI host bridge setup/resources Thomas Bogendoerfer
2007-04-08 17:20 ` Sergei Shtylyov
2007-04-08 23:07   ` Thomas Bogendoerfer
2007-04-09  8:29     ` Geert Uytterhoeven
2007-04-09 14:44       ` Sergei Shtylyov [this message]
2007-04-09 14:42     ` Sergei Shtylyov
2007-04-09 15:16       ` Thomas Bogendoerfer
2007-04-10 15:50         ` Maciej W. Rozycki

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