From: Robert Schwebel <robert@schwebel.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] I2C Initialization
Date: Wed, 12 Mar 2003 09:43:33 +0100 [thread overview]
Message-ID: <20030312084333.GW4459@pengutronix.de> (raw)
In-Reply-To: <IGEFJKJNHJDCBKALBJLLEEBFFLAA.joakim.tjernlund@lumentis.se>
On Wed, Mar 12, 2003 at 09:31:46AM +0100, Joakim Tjernlund wrote:
> I copied parts of mpc8xx/soft_i2c.c in my ppcboot(1.0.5) and hacked
> a I2C Reset function that is called from misc_init_r().
You should use the i2c_init_board() infrastructure I've recently added.
On PXA you get problems when you just toggle between the states - the
internal i2c controller thinks there is traffic. So for the innokom
board we switch betwenn "low" and "high impedance". I have no idea if
that helps in your case...
Robert
--
Dipl.-Ing. Robert Schwebel | http://www.pengutronix.de
Pengutronix - Linux Solutions for Science and Industry
Braunschweiger Str. 79, 31134 Hildesheim, Germany
Handelsregister: Amtsgericht Hildesheim, HRA 2686
Phone: +49-5121-28619-0 | Fax: +49-5121-28619-4
next prev parent reply other threads:[~2003-03-12 8:43 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-04 13:24 [U-Boot-Users] Board init Robert Schwebel
2003-03-04 15:27 ` Wolfgang Denk
2003-03-04 15:57 ` Robert Schwebel
2003-03-05 2:20 ` Adam Bezanson
2003-03-05 5:42 ` [U-Boot-Users] I2C Initialization Reinhard Meyer
2003-03-05 8:15 ` Wolfgang Denk
2003-03-05 13:05 ` Adam Bezanson
2003-03-05 14:44 ` Robert Schwebel
2003-03-05 17:39 ` Robert Schwebel
2003-03-05 19:12 ` Wolfgang Denk
2003-03-06 6:21 ` Robert Schwebel
2003-03-06 8:01 ` Wolfgang Denk
2003-03-06 8:40 ` Robert Schwebel
2003-03-06 9:24 ` Wolfgang Denk
2003-03-06 9:47 ` Robert Schwebel
2003-03-12 8:31 ` Joakim Tjernlund
2003-03-12 8:43 ` Robert Schwebel [this message]
2003-03-12 10:24 ` Joakim Tjernlund
2003-03-14 13:38 ` [U-Boot-Users] I2C Initialization, important Update!! Joakim Tjernlund
2003-03-14 14:08 ` Wolfgang Denk
2003-03-14 14:29 ` Joakim Tjernlund
2003-03-05 8:10 ` [U-Boot-Users] Board init Wolfgang Denk
2003-03-05 8:12 ` Robert Schwebel
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=20030312084333.GW4459@pengutronix.de \
--to=robert@schwebel.de \
--cc=u-boot@lists.denx.de \
/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