From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.ebshome.net (gate.ebshome.net [64.81.67.12]) (using TLSv1 with cipher EDH-RSA-DES-CBC3-SHA (168/168 bits)) (Client CN "gate.ebshome.net", Issuer "gate.ebshome.net" (not verified)) by ozlabs.org (Postfix) with ESMTP id 0E06C67B68 for ; Thu, 30 Jun 2005 02:48:55 +1000 (EST) Date: Wed, 29 Jun 2005 09:48:52 -0700 From: Eugene Surovegin To: Scott Coulter Message-ID: <20050629164852.GA17313@gate.ebshome.net> References: <43EB80E07C42E1408726E4905FB96B044402F5@CYBORG3.cyclone.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <43EB80E07C42E1408726E4905FB96B044402F5@CYBORG3.cyclone.com> Cc: linuxppc-embedded@ozlabs.org Subject: Re: 440GX EMAC driver hang? List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, Jun 29, 2005 at 09:40:34AM -0400, Scott Coulter wrote: > Hi, > > I am doing a Linux 2.6.11.11 port for a CPCI board with a 440GX > processor on it. Previously, I had successfully ported 2.6.11.11 to the > board's predecessor running on a 440GP processor. Due to limitations in > this version of the PCB, EMAC ports 2 and 3 are not connected. The > standalone kernel comes up and gets into a BusyBox shell. When I try to > ifconfig the eth0 interface, the messages "eth0: Link is Up" and "eth0: > Speed: 100, Full duplex." are displayed and then the target hangs. I > used the OCOTEA port as a pattern for my 440GP->440GX conversion. The > PHYs which are connected to EMAC ports 0 and 1 are the same PHYs as on > the 440GP board (running in RMII mode). I have tried to use the > function "ocp_remove_one_device" to whack EMAC2 and EMAC3. I am pretty > sure that the removal worked as I no longer see init messages for those > EMACs (previously I saw all four devices get initialized). The MAL > reports that it has "Initialized, 4 tx channels, 4 rx channels." I used > the function "ibm440gx_set_eth_grp" to force the Ethernets to both group > 0 and group 1 configurations. So far, nothing has worked. Can anyone > think of anything obvious that I am missing? I know that the Ethernet > ports are functional as I used TFTP with our ROM monitor package to > download the zImage file. You can try using 4xx NAPI EMAC driver I wrote some time ago. It can be found at http://kernel.ebshome.net/ (there is a patch and GIT tree which is kept up to date). You can enable debug and mail me trace log privately, and maybe I can help you debug your problem. -- Eugene