From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Stuart Longland <redhatter@gentoo.org>
Cc: alsa-devel@alsa-project.org, gnutoo <GNUtoo@no-log.org>,
Liam Girdwood <lrg@slimlogic.co.uk>
Subject: Re: ASoC: Hooking a TI CODEC to a i.MX27 MCU
Date: Fri, 28 May 2010 13:27:12 +0100 [thread overview]
Message-ID: <20100528122711.GA2486@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <20100528020621.GA12531@www.longlandclan.yi.org>
On Fri, May 28, 2010 at 12:06:25PM +1000, Stuart Longland wrote:
> I have a userspace application that mmaps the registers for SSI2 and
> AUDMUX, and sets this up, so no big deal ... the clock it receives is
> about 12.1MHz (12.093MHz according to the frequency counter here).
In production this should be done in-kernel.
> When I try to play audio; the AUDMUX configuration is as follows:
> Port: imx-ssi.0
> Raw: cb205000
> TxFS output from SSI4, TxClk output from SSI4
> Port is symmetric
> Data received from SSI4
> Port: SSI4
> Raw: 00001000
> TxFS input, TxClk input
> Port is symmetric
> Data received from imx-ssi.0
This appears reasonable at first glance.
> I'll have a look at the Eukrea CPUIMX27 and baseboard SoC support in a
> moment, since it looks very similar to what we're doing (in that it's a
> TI I²S CODEC hooked to an i.MX27 on SSI4) ... this might reveal clues
> as to what I'm doing wrong.
Have you also checked the pin mux configuration for the i.MX?
next prev parent reply other threads:[~2010-05-28 12:27 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-24 7:49 ASoC: Hooking a TI CODEC to a i.MX27 MCU Stuart Longland
2010-05-24 10:49 ` Liam Girdwood
2010-05-25 0:41 ` Stuart Longland
2010-05-25 2:26 ` Stuart Longland
2010-05-25 3:26 ` Stuart Longland
2010-05-25 16:46 ` gnutoo
2010-05-26 13:21 ` Stuart Longland
2010-05-27 0:47 ` Mark Brown
2010-05-28 2:06 ` Stuart Longland
2010-05-28 5:55 ` Eric Bénard
2010-05-28 11:08 ` Mark Brown
2010-05-28 13:10 ` Eric Bénard
2010-06-01 3:30 ` Stuart Longland
2010-06-01 5:07 ` Stuart Longland
2010-06-01 11:32 ` Stuart Longland
2010-06-03 11:14 ` Mark Brown
2010-06-03 11:43 ` Stuart Longland
2010-06-03 11:57 ` Mark Brown
2010-05-28 12:27 ` Mark Brown [this message]
2010-05-29 8:59 ` Stuart Longland
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