From: Philip Balister <philip@balister.org>
To: "linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
Subject: DMA example
Date: Wed, 24 Feb 2010 11:34:07 -0800 [thread overview]
Message-ID: <4B857F2F.7000201@balister.org> (raw)
I am trying to setup a dma operation to copy memory from GPMC address
space into RAM. The only examples using the omap-dma api use hardware
triggers.
When I start a transfer, I end up with a DMA transaction error when I
start the transfer.
Does anyone have a good example of a software transfer? Currently, I am
tracing the omap dma api to see how things map into the registers ....
Philip
next reply other threads:[~2010-02-24 19:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-02-24 19:34 Philip Balister [this message]
2010-02-24 20:35 ` DMA example Tony Lindgren
2010-02-24 22:31 ` Philip Balister
2010-02-24 22:52 ` Tony Lindgren
2010-02-25 2:24 ` Philip Balister
2010-02-25 4:26 ` Philip Balister
2010-02-25 4:59 ` Shilimkar, Santosh
2010-02-25 6:22 ` Venkatraman S
2010-02-24 20:48 ` Shilimkar, Santosh
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=4B857F2F.7000201@balister.org \
--to=philip@balister.org \
--cc=linux-omap@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.