Re: [PATCH v5 6/7] ARM: dts: microchip: sama5d27_wlsom1: read MAC address from QSPI SFDP

From: Linus Walleij

Date: Tue Jul 21 2026 - 03:50:04 EST


On Tue, Jul 21, 2026 at 7:30 AM Manikandan Muralidharan
<manikandan.m@xxxxxxxxxxxxx> wrote:

> Describe the QSPI flash SFDP as an NVMEM provider with the
> microchip,sst26vf-sfdp-eui layout, which exposes the factory-programmed
> EUI-48 as a "mac-address" cell, and point macb0 at it through
> nvmem-cells. This yields a stable MAC address on boards where U-Boot does
> not program one, instead of falling back to a random address.
>
> Signed-off-by: Manikandan Muralidharan <manikandan.m@xxxxxxxxxxxxx>

Reviewed-by: Linus Walleij <linusw@xxxxxxxxxx>

Yours,
Linus Walleij