netdev - Re: [PATCH linux-can-next/flexcan 1/4] can: flexcan: initialize all flexcan memory for ECC function

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Message-ID: <e9542cdc-cce8-8ec5-8229-5a9992352539@pengutronix.de>
Date:   Mon, 28 Sep 2020 10:20:40 +0200
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Joakim Zhang <qiangqing.zhang@....com>,
        "linux-can@...r.kernel.org" <linux-can@...r.kernel.org>,
        Pankaj Bansal <pankaj.bansal@....com>
Cc:     dl-linux-imx <linux-imx@....com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH linux-can-next/flexcan 1/4] can: flexcan: initialize all
 flexcan memory for ECC function

On 9/28/20 9:58 AM, Joakim Zhang wrote:
>> Can someone check the vf610, too?
> 
> I check the VF610 RM just now, indeed it has ECC feature, there is also a NOTE in "12.1.4.13 Detection and Correction of Memory Errors" section:
> 
> All FlexCAN memory must be initialized before starting its
> operation in order to have the parity bits in memory properly
> updated. The WRMFRZ bit in Control 2 Register (CTRL2)
> grants write access to all memory positions from 0x080 to
> 0xADF.

Sounds good.

Marc

-- 
Pengutronix e.K.                 | Marc Kleine-Budde           |
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