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Date:   Wed, 23 Mar 2022 09:32:03 -0400
From:   Tom Rini <trini@konsulko.com>
To:     =?utf-8?B?UmFmYcWCIE1pxYJlY2tp?= <zajec5@gmail.com>
Cc:     Rob Herring <robh+dt@kernel.org>,
        Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Ricardo Salveti <ricardo@foundries.io>,
        Michal Simek <michal.simek@xilinx.com>,
        Jorge Ramirez-Ortiz <jorge@foundries.io>,
        Sean Anderson <seanga2@gmail.com>, devicetree@vger.kernel.org,
        u-boot@lists.denx.de, linux-kernel@vger.kernel.org,
        =?utf-8?B?UmFmYcWCIE1pxYJlY2tp?= <rafal@milecki.pl>
Subject: Re: [PATCH V3] dt-bindings: nvmem: add U-Boot environment variables
 binding
Message-ID: <20220323133203.GD2226424@bill-the-cat>
References: <20220228131250.16943-1-zajec5@gmail.com>
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On Mon, Feb 28, 2022 at 02:12:50PM +0100, Rafa=C5=82 Mi=C5=82ecki wrote:

> From: Rafa=C5=82 Mi=C5=82ecki <rafal@milecki.pl>
>=20
> U-Boot uses environment variables for storing device setup data. It
> usually needs to be accessed by a bootloader, kernel and often
> user-space.
>=20
> This binding allows describing environment data located in a raw flash
> partition. It's treated as NVMEM device and can be reused later for
> other storage devices.
>=20
> Using DT should be cleaner than hardcoding & duplicating such info in
> multiple places. Bootloader & kernel can share DTS and user-space can
> try reading it too or just have correct data exposed by a kernel.
>=20
> A custom "compatible" string allows system to automatically load
> relevant NVMEM driver but phandle can be also used for reading raw
> location.
>=20
> Signed-off-by: Rafa=C5=82 Mi=C5=82ecki <rafal@milecki.pl>

Reviewed-by: Tom Rini <trini@konsulko.com>

--=20
Tom

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