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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox