From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Mark Lord <liml@rtr.ca>
Cc: Alan Cox <alan@redhat.com>,
"Richardson, Charlotte" <Charlotte.Richardson@stratus.com>,
jgarzik@pobox.com, "Petrakis, Peter" <Peter.Petrakis@stratus.com>,
"Duval, Dan" <Dan.Duval@stratus.com>,
"Dailey, Nate" <Nate.Dailey@stratus.com>,
linux-ide@vger.kernel.org
Subject: Re: ata-piix.c (and libata.ko) in RHEL5.1 (build 78 currently) - this kernel is 2.6.18 baqsed
Date: Fri, 22 Feb 2008 17:03:12 +0000 [thread overview]
Message-ID: <20080222170312.4c849c0d@core> (raw)
In-Reply-To: <47BEFB0B.9070808@rtr.ca>
> 3) It is critical to ensure that the ATA "ctl" register is never
> written to when no drive is attached. This means bracketing the SRST
> sequence to first do a PCS detection before permitting the SRST.
> If "ctl" is accessed with no drive attached, the machine locks up hard.
At least for PATA you probably need to disable IORDY handshaking before
the reset and probe.
Alan
next prev parent reply other threads:[~2008-02-22 17:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <6853F62BE9A693419863D51D4554A9E3012BE92B@EXNA.corp.stratus.com>
2008-02-22 15:10 ` ata-piix.c (and libata.ko) in RHEL5.1 (build 78 currently) - this kernel is 2.6.18 baqsed Alan Cox
2008-02-22 16:40 ` Mark Lord
2008-02-22 17:03 ` Alan Cox [this message]
2008-02-22 17:37 ` Mark Lord
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