From: Tejun Heo <tj@kernel.org>
To: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Jeff Garzik <jgarzik@pobox.com>,
linux-ide@vger.kernel.org, lkml <linux-kernel@vger.kernel.org>
Subject: Re: SATA_SIL: Add a work-around for IXP4xx CPU.
Date: Tue, 15 Dec 2009 17:19:32 +0900 [thread overview]
Message-ID: <4B274694.6020701@kernel.org> (raw)
In-Reply-To: <m3fx8m0vwh.fsf@intrepid.localdomain>
Hello,
On 11/11/2009 09:04 AM, Krzysztof Halasa wrote:
> IXP4xx CPUs can't read from 8 and 16-bit PCI MMIO registers, we have to read
> from normal IO regions instead.
>
> Tested on SIL3512, and specifically not tested on 4-port SIL3114.
>
> Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Hmmm... Given that there are some platforms which have problem with
mmio and sil3112/4 can do everything via io accesses, it would be nice
to generalize this so that there's CONFIG_SATA_SIL_NO_MMIO which is
selected by affected platforms. Are you interested in doing it?
Thanks.
--
tejun
next prev parent reply other threads:[~2009-12-15 8:18 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-11 0:04 SATA_SIL: Add a work-around for IXP4xx CPU Krzysztof Halasa
2009-12-15 8:19 ` Tejun Heo [this message]
2009-12-15 23:03 ` Krzysztof Halasa
2009-12-15 23:09 ` Jeff Garzik
2009-12-16 0:39 ` Tejun Heo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4B274694.6020701@kernel.org \
--to=tj@kernel.org \
--cc=jgarzik@pobox.com \
--cc=khc@pm.waw.pl \
--cc=linux-ide@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.