From: Jeff Garzik <jgarzik@pobox.com>
To: Ajit Prem <Ajit.Prem@motorola.com>
Cc: linux-ide@vger.kernel.org, Jeremy Higdon <jeremy@sgi.com>
Subject: Re: 31244 & sata_vsc & PPC
Date: Wed, 16 Feb 2005 14:08:21 -0500 [thread overview]
Message-ID: <20050216190821.GA19150@havoc.gtf.org> (raw)
In-Reply-To: <4213996C.4060301@motorola.com>
On Wed, Feb 16, 2005 at 12:05:16PM -0700, Ajit Prem wrote:
> The email archives indicate that sata_vsc worked
> on a 31244 in a Dell Powervault once the
> kernel included the following configuration:
>
> Processor type and features -> Local APIC support on uniprocessors
> Processor type and features -> IO-APIC support on uniprocessors
> General setup -> Power Management support -> ACPI Support
>
> Trying to use sata_vsc on a 31244 in a PPC board
> results in the same problem as other users had on
> an X86 board configured without ACPI support - interrupts
> come in too early to vsc_sata_interrupt, the interrupt
> doesn't get cleared, and the kernel finally disables the irq.
> What should one do to get sata_vsc/libata to work on a PPC board?
Ultimately I wonder if sata_vsc is masking/clearing all interrupt
conditions during startup.
There might also be a problem with PIO polling.
Jeff
next prev parent reply other threads:[~2005-02-16 19:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-16 19:05 31244 & sata_vsc & PPC Ajit Prem
2005-02-16 19:08 ` Jeff Garzik [this message]
2005-02-16 20:51 ` Ajit Prem
2005-02-19 6:01 ` Jeremy Higdon
2005-02-16 21:27 ` Ajit Prem
2005-02-16 22:25 ` Jeff Garzik
2005-02-17 1:21 ` Ajit Prem
2005-02-19 6:02 ` Jeremy Higdon
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