From: Marc Kleine-Budde <mkl@pengutronix.de>
To: Dong Aisheng-B29396 <B29396@freescale.com>
Cc: Wolfgang Grandegger <wg@grandegger.com>,
Shawn Guo <shawn.guo@linaro.org>,
Linux Netdev List <netdev@vger.kernel.org>,
Linux-CAN <linux-can@vger.kernel.org>,
Hui Wang <jason77.wang@gmail.com>
Subject: Re: [PATCH] flexcan: disable bus error interrupts for the i.MX28
Date: Wed, 10 Oct 2012 22:04:42 +0200 [thread overview]
Message-ID: <5075D4DA.7010407@pengutronix.de> (raw)
In-Reply-To: <7FE21149F4667147B645348EC60578850B2A361F@039-SN2MPN1-011.039d.mgd.msft.net>
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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
--
Pengutronix e.K. | Marc Kleine-Budde |
Industrial Linux Solutions | Phone: +49-231-2826-924 |
Vertretung West/Dortmund | Fax: +49-5121-206917-5555 |
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next prev parent reply other threads:[~2012-10-10 20:04 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-28 13:17 [PATCH] flexcan: disable bus error interrupts for the i.MX28 Wolfgang Grandegger
2012-09-29 6:00 ` Hui Wang
2012-10-07 3:09 ` Shawn Guo
2012-10-07 14:48 ` Wolfgang Grandegger
2012-10-08 7:59 ` Dong Aisheng-B29396
2012-10-08 9:03 ` Wolfgang Grandegger
2012-10-08 9:13 ` Dong Aisheng-B29396
2012-10-08 9:31 ` Marc Kleine-Budde
2012-10-08 9:42 ` Dong Aisheng-B29396
2012-10-09 11:52 ` Dong Aisheng-B29396
2012-10-09 12:32 ` Wolfgang Grandegger
2012-10-10 20:04 ` Marc Kleine-Budde [this message]
2012-10-11 1:41 ` Dong Aisheng
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