linux-kernel - Re: MXS persistent bits driver

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Message-ID: <51DE734A.80206@digi.com>
Date:	Thu, 11 Jul 2013 10:56:42 +0200
From:	Hector Palacios <hector.palacios@...i.com>
To:	"maxime.ripard@...e-electrons.com" <maxime.ripard@...e-electrons.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"fabio.estevam@...escale.com" <fabio.estevam@...escale.com>,
	Marek Vasut <marex@...x.de>, "cb@...c.de" <cb@...c.de>
Subject: Re: MXS persistent bits driver

Dear Maxime,

On 07/11/2013 10:24 AM, maxime.ripard@...e-electrons.com wrote:
> Hi Hector,
>
> On Thu, Jul 11, 2013 at 09:30:34AM +0200, Hector Palacios wrote:
>> Greetings,
>>
>> Linux 2.6.35 had a driver for sysfs access to the MXS persistent
>> bits (drivers/misc/mxs-persistent.c).
>
> Freescale's 2.6.35 I suspect, right?

Yes.

>> I haven't seen this is supported upstream. Is anybody working on that?
>> Where would such a driver fit?
>
> Christoph Baumann recently started porting the Freescale's driver to
> newer release.
>
> http://lists.infradead.org/pipermail/linux-arm-kernel/2013-July/181569.html
>
> This needs quite a lot of work, but it's ongoing.
>
> Also, about where to put such a driver, I started a discussion about
> this last week. Mostly, that would be part of MTD, from what is out of
> the discussion so far.
>
> http://lists.infradead.org/pipermail/linux-arm-kernel/2013-July/182002.html

I was talking about RTC persistent bits, not OTP bits, but I they also fit in your 
EEPROM like model. I like it!

Best regards,
--
Hector Palacios
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