From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.chez-thomas.org (hermes.mlbassoc.com [64.234.241.98]) by ozlabs.org (Postfix) with ESMTP id 7E85DB70E9 for ; Fri, 4 Feb 2011 05:48:03 +1100 (EST) Message-ID: <4D4AF861.2050605@mlbassoc.com> Date: Thu, 03 Feb 2011 11:48:01 -0700 From: Gary Thomas MIME-Version: 1.0 To: Linux PPC Development Subject: Re: MMC on MPC8379 References: <4D4717AD.2040905@mlbassoc.com> In-Reply-To: <4D4717AD.2040905@mlbassoc.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 01/31/2011 01:12 PM, Gary Thomas wrote: > I'm running 2.6.32 on MPC8379, trying to use the SDHCI interface. > It seems to work, reads are fine, but when I write to the device > (I've tried both eMMC soldered-on and pluggable MMC/SD cards), > I get intermittent failures. Specifically, some blocks will be > written while others fail. I haven't yet found a pattern. > > Is there anything special about this interface? I notice that > it's not really used by any FSL platforms although the driver > claims support. On the surface, it looks like it should work and I'm perplexed by the failures. Does anyone have any ideas or experience with this device? -- ------------------------------------------------------------ Gary Thomas | Consulting for the MLB Associates | Embedded world ------------------------------------------------------------