[PATCH V3] dt-bindings: nvmem: add U-Boot environment variables binding

[Tom Rini]

On Mon, Feb 28, 2022 at 02:12:50PM +0100, Rafał Miłecki wrote:

> From: Rafał Miłecki <rafal at milecki.pl>
> 
> U-Boot uses environment variables for storing device setup data. It
> usually needs to be accessed by a bootloader, kernel and often
> user-space.
> 
> 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.
> 
> 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.
> 
> A custom "compatible" string allows system to automatically load
> relevant NVMEM driver but phandle can be also used for reading raw
> location.
> 
> Signed-off-by: Rafał Miłecki <rafal at milecki.pl>

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

-- 
Tom
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