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Date: Wed, 17 Sep 2025 11:08:24 +0100
From: Daniel Golle <daniel@makrotopia.org>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
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Subject: Re: [PATCH 1/4] arm64: dts: mediatek: mt7622: add 'serial' cell to
 efuse
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 <87179c9f-cc7f-446f-9e8d-c84bddb48660@collabora.com>
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On Wed, Sep 17, 2025 at 11:06:13AM +0200, AngeloGioacchino Del Regno wrote:
> Il 17/09/25 01:05, Daniel Golle ha scritto:
> > The efuse of the MediaTek MT7622 contains an 8-byte unique identifier.
> > Add a 'serial' cell covering those 8 bytes to the nvmem defininition of
> > the efuse to allow easy access from userspace, eg. to generate a
> > persistent random MAC address on boards like the BananaPi R64 which
> > doesn't have any factory-assigned addresses.
> 
> Sorry, but I don't get why this is named "serial" and not "soc-uuid".
> 
> Care to explain?

I don't have documentation covering the efuse content but only got this
information on an informal way:

https://forum.banana-pi.org/t/bpi-r3-serial-number/14556/10?u=dangowrt

Either name is fine with me, I thought of it as "serial number", but
obviously "soc-uuid" works fine, too.
I can change it to that and send v2 tonight.