[meta-freescale] [PATCH 0/1] arm: imx: fsl_otp: make fuses (OTP memory) read-only

Otavio Salvador otavio at ossystems.com.br
Fri Nov 7 07:07:26 PST 2014

On Fri, Nov 7, 2014 at 1:04 PM, Eric Bénard <eric at eukrea.com> wrote:
> Hi Jon,
> Le Fri, 7 Nov 2014 15:31:15 +0100,
> Jon Nettleton <jon.nettleton at gmail.com> a écrit :
>> Fair enough.  Can we all agree that it should default to disabled?
> On your product sure, on the evaluation board that's more questionable.
> When an evaluation board's user reach this sysfs entries to do a write
> to it I believe that's not a random choice but a user's choice.
> Maybe adding a otp_unlock entry to the sysfs before allowing write could
> secure more the feature when running on the evaluation boards so that
> the user can think twice before writing to the fuses.

I like Eric's idea of the unlock sysfs entry for this purpose.

Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
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