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From: Alan <alan@lxorguk.ukuu.org.uk>
To: "Luck, Tony" <tony.luck@intel.com>
Cc: ia64 Fedora Core Development <fedora-ia64-list@redhat.com>,
	"Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
	linux-ide@vger.kernel.org
Subject: Re: [Fedora-ia64-list] Re: The 5th bar of ide controller at legacy mode
Date: Mon, 12 Feb 2007 19:24:01 +0000	[thread overview]
Message-ID: <20070212192401.59b35794@localhost.localdomain> (raw)
In-Reply-To: <617E1C2C70743745A92448908E030B2A011E7BEC@scsmsx411.amr.corp.intel.com>

> Which sounds sort of plausible ... but perhaps that's because I have
> not idea what a "Class code programming model" is.  Does that make
> any sense?

I think they are talking about BAR0 to 3 which are special, not BAR5
which the ia64 kernel code has somehow ended up assigned at I/O address
zero. Now whether that is a BIOS/Linux confusion, a BIOS mis-setup or
something weird that happened post BIOS to OS handover I don't know.

I know a similar PPC problem was really about the firmware assigning it
to zero to mean "not assigned" and the OS interpreting that as Bus
address 0, assigned.

Alan

      parent reply	other threads:[~2007-02-12 19:10 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-12  1:40 Zhang, Yanmin
2007-02-12 12:22 ` [Fedora-ia64-list] " Prarit Bhargava
2007-02-12 12:56 ` Alan
2007-02-12 18:18   ` [Fedora-ia64-list] " Luck, Tony
2007-02-12 18:24     ` Prarit Bhargava
2007-02-12 19:24     ` Alan [this message]

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