From: Matt Porter <mporter@kernel.crashing.org>
To: Madhu Saravana Sibi Govindan <ssshayagriva@gmail.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: PowerPC/Linux device driver question
Date: Thu, 20 Oct 2005 13:21:50 -0700 [thread overview]
Message-ID: <20051020132150.A29677@cox.net> (raw)
In-Reply-To: <513a5e60510201256k64c0e4fan1557c28a0bdf920c@mail.gmail.com>; from ssshayagriva@gmail.com on Thu, Oct 20, 2005 at 02:56:21PM -0500
On Thu, Oct 20, 2005 at 02:56:21PM -0500, Madhu Saravana Sibi Govindan wrote:
> I'm not sure how to request this range of physical memory from the
> kernel. I thought I could use ioremap to map this range into the
> virtual space, but ioremap takes only an unsigned long as an argument,
> which is only 32 bits on 440GP. I don't think I can represent the range of my
> device with 32 bits.
>
> Could someone tell me how to solve the problem? I want this range of
> physical addresses to be associated with my device driver and how do I
> do that?
Use the ppc-specific ioremap64() call.
-Matt
prev parent reply other threads:[~2005-10-20 20:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-10-20 19:56 PowerPC/Linux device driver question Madhu Saravana Sibi Govindan
2005-10-20 20:21 ` Matt Porter [this message]
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=20051020132150.A29677@cox.net \
--to=mporter@kernel.crashing.org \
--cc=linuxppc-dev@ozlabs.org \
--cc=ssshayagriva@gmail.com \
/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.