Re: [PATCH] flexcan: disable bus error interrupts for the i.MX28
flat view
From: Dong Aisheng <hidden>
Date: 2012-10-11 02:12:53
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linux-can
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: [...]quoted
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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.quoted
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 :)quoted
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.
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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 03.00.00.00Do 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 |