From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dong Aisheng Subject: Re: [PATCH] flexcan: disable bus error interrupts for the i.MX28 Date: Thu, 11 Oct 2012 09:41:38 +0800 Message-ID: <20121011014135.GA7374@shlinux2.ap.freescale.net> References: <5065A35B.3020702@grandegger.com> <20121007030858.GJ20231@S2101-09.ap.freescale.net> <50719647.4070404@grandegger.com> <7FE21149F4667147B645348EC60578850B2A361F@039-SN2MPN1-011.039d.mgd.msft.net> <5075D4DA.7010407@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: Wolfgang Grandegger , Shawn Guo , Linux Netdev List , Linux-CAN , Hui Wang To: Marc Kleine-Budde Return-path: Content-Disposition: inline In-Reply-To: <5075D4DA.7010407@pengutronix.de> Sender: linux-can-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Wed, Oct 10, 2012 at 10:04:42PM +0200, Marc Kleine-Budde wrote: > On 10/08/2012 09:59 AM, Dong Aisheng-B29396 wrote: > [...] > > >>>> Concerning the bug, I know that the i.MX35 does have it. Maybe other > >>>> Flexcan cores than on the i.MX28 does *not* have it either. If you > >>>> have a chance, please check on the P1010, i.MX6Q, i.MX51, i.MX53, > >>>> etc. > >>> > >>> >From what I can tell, i.MX35, i.MX51 and i.MX53 use the same version, > >>> so they should all have the bug. And for i.MX6Q, since it uses a > >>> newer version even than i.MX28, I would believe it's affected by the bug. > >>> But I'm copying Dong who should have better knowledge about this to > >>> confirm. > >> > >> Thank for clarification. I have a i.MX6Q board but without CAN adapter :(, > >> unfortunately. Otherwise I would try it out myself. > >> > > How did you verify this issue? > > I just checked our ic guy of flexcan, it seems he also had no sense of this issue. > > Wolfgang added this table to the driver code, which is a very good idea. > I've some (nitpicky) questions :) > > > Below is some version info what I got: > > Mx6s use FlexCAN3, with IP version 10.00.12.00 > ^^^ > Is this core different from the mx6q? Yes, it's a single core named i.MX6 Solo. For details, please see: http://www.freescale.com/webapp/sps/site/taxonomy.jsp?code=IMX6X_SERIES > Has the flexcan on mx6 a glitch filter? > Yes. > > Mx53 use FlexCAN2 (with glitch filter), with IP version 03.00.00.00 > > Mx28 use FlexCAN2 (with glitch filter), with IP version 03.00.04.00 > > Mx35 use FlexCAN2 (without glitch filter) , with IP version 03.00.00.00 > > Mx25 use FlexCAN2 (without glitch filter), with IP version 03.00.00.00 > > Do you have access to the powerpc designs which have a flexcan core, > too? I'm interested to complete the above table with powerpcs cores > (p1010 and similar). Sorry, we don't have access. Regards Dong Aisheng > > Marc > -- > Pengutronix e.K. | Marc Kleine-Budde | > Industrial Linux Solutions | Phone: +49-231-2826-924 | > Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | > Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de | >