From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Kleine-Budde Subject: Re: [PATCH] flexcan: disable bus error interrupts for the i.MX28 Date: Wed, 10 Oct 2012 22:04:42 +0200 Message-ID: <5075D4DA.7010407@pengutronix.de> References: <5065A35B.3020702@grandegger.com> <20121007030858.GJ20231@S2101-09.ap.freescale.net> <50719647.4070404@grandegger.com> <7FE21149F4667147B645348EC60578850B2A361F@039-SN2MPN1-011.039d.mgd.msft.net> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig1758982963CDEA236DC7DC90" Cc: Wolfgang Grandegger , Shawn Guo , Linux Netdev List , Linux-CAN , Hui Wang To: Dong Aisheng-B29396 Return-path: In-Reply-To: <7FE21149F4667147B645348EC60578850B2A361F@039-SN2MPN1-011.039d.mgd.msft.net> Sender: linux-can-owner@vger.kernel.org List-Id: netdev.vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig1758982963CDEA236DC7DC90 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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? Has the flexcan on mx6 a glitch filter? > 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). Marc --=20 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 | --------------enig1758982963CDEA236DC7DC90 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ iEYEARECAAYFAlB11NoACgkQjTAFq1RaXHO6tACfWs9s1gVT3d0FoXgCkuxbiQ5V sZQAmQFNnlG9CL+REJcrl2U4hIvhKO4W =/2f+ -----END PGP SIGNATURE----- --------------enig1758982963CDEA236DC7DC90--