From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Thu, 25 Jul 2013 06:33:32 +0200 Subject: [U-Boot] PPC4XX Custom Board - Failing to read I2C In-Reply-To: <1374706696995-159975.post@n7.nabble.com> References: <1364939304023-151298.post@n7.nabble.com> <1365120299377-151609.post@n7.nabble.com> <515E6986.4050905@denx.de> <1365430593610-151814.post@n7.nabble.com> <5162D574.30702@gmail.com> <1365450848269-151862.post@n7.nabble.com> <51643873.4000801@denx.de> <1374706696995-159975.post@n7.nabble.com> Message-ID: <51F0AA9C.3000902@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Greg, On 07/25/2013 12:58 AM, txcotrader wrote: > I know it's been awhile, but I do appreciate your previous help. I took some > time off to complete other projects, now I'm back working on finishing this > port. During the boot I'm seeing the value of &i2c->extsts is either 0x40 or > 0x60 which equates to lost arbitration or lost arbitration and incomplete > transfer. Have you seen this type of error based on a misconfiguration? Any > help you're willing to provide is greatly appreciated. Sorry, I have no idea why this could be the case. Do you have another 4xx based board (some AMCC/APM eval board) to compare the "extsts" register value? This might give you a clue. Thanks, Stefan