From: Marc Kleine-Budde <mkl@pengutronix.de>
To: "bhupesh.sharma@freescale.com" <bhupesh.sharma@freescale.com>,
"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>
Cc: "arnd@arndb.de" <arnd@arndb.de>,
"bhupesh.linux@gmail.com" <bhupesh.linux@gmail.com>,
"Sakar.Arora@freescale.com" <Sakar.Arora@freescale.com>
Subject: Re: [PATCH 3/3] can: flexcan: Add support for non RX-FIFO mode and ERRATA ERR005829
Date: Thu, 09 Apr 2015 18:33:27 +0200 [thread overview]
Message-ID: <5526A9D7.8000205@pengutronix.de> (raw)
In-Reply-To: <BY1PR0301MB1303410A178296C5EC58560B82FB0@BY1PR0301MB1303.namprd03.prod.outlook.com>
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On 04/09/2015 06:17 PM, bhupesh.sharma@freescale.com wrote:
>> -----Original Message-----
>> From: Marc Kleine-Budde [mailto:mkl@pengutronix.de]
>> On 04/09/2015 05:53 PM, bhupesh.sharma@freescale.com wrote:
>>>> Please look at the mainline commit:
>>>>
>>>> 25e924450fcb can: flexcan: implement workaround for errata ERR005829
>>>
>>> Hmm.. This looks like a fairly simple ERRATA to be handled w/o Kconfig.
>>> But with the legacy mode support ERRATA, we have completely different
>>> RX setups for the legacy and FIFO mode.
>>
>> Can you give me link to the "ERRATA ERR005829 (A-008965)" description?
>>
>> The errata ERR005829 is described here
>> http://cache.freescale.com/files/32bit/doc/errata/IMX6DQCE.pdf and it's
>> fixed by mainline commit:
>>
>> 25e924450fcb can: flexcan: implement workaround for errata ERR005829
>>
>> Is your "ERRATA ERR005829 (A-008965)" something different?
>
> Yes. I mixed up the errata numbers in the git log by mistake.
>
> Its number A-008965 and is related to LS1021A FlexCAN not being
> able to support RX-FIFO mode.
Do you have a link to the errata? Where's the corresponding kconfig
patch? Why do you have to switch on/off the errata by kconfig? Is there
a LS1021A without the bug?
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 |
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next prev parent reply other threads:[~2015-04-09 16:33 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-09 15:24 [PATCH 1/3] can: flexcan: Add ls1021a flexcan device entry Bhupesh Sharma
2015-04-09 15:24 ` [PATCH 2/3] net: can: Remodel FlexCAN register read/write APIs for BE instances Bhupesh Sharma
2015-04-09 15:24 ` [PATCH 3/3] can: flexcan: Add support for non RX-FIFO mode and ERRATA ERR005829 Bhupesh Sharma
2015-04-09 15:40 ` Marc Kleine-Budde
2015-04-09 15:45 ` bhupesh.sharma
2015-04-09 15:46 ` Marc Kleine-Budde
2015-04-09 15:53 ` bhupesh.sharma
2015-04-09 16:12 ` Marc Kleine-Budde
2015-04-09 16:17 ` bhupesh.sharma
2015-04-09 16:33 ` Marc Kleine-Budde [this message]
2015-04-27 6:38 ` bhupesh.sharma
2015-04-27 6:45 ` Marc Kleine-Budde
2015-04-27 6:51 ` bhupesh.sharma
2015-04-27 7:10 ` Marc Kleine-Budde
2015-04-27 7:11 ` bhupesh.sharma
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