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由 Rafał Miłecki 提交于
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: NRafał Miłecki <rafal@milecki.pl> Reviewed-by: NTom Rini <trini@konsulko.com> Signed-off-by: NRob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220228131250.16943-1-zajec5@gmail.com
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