linux-kernel - Re: [PATCH v3] net: e1000e: add MAC address kernel cmd line parameter

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Message-ID: <b12067de92864d5db83bd3da9456e2fe@asem.it>
Date:   Thu, 28 Feb 2019 15:51:40 +0000
From:   Flavio Suligoi <f.suligoi@...m.it>
To:     Andrew Lunn <andrew@...n.ch>
CC:     Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] net: e1000e: add MAC address kernel cmd line parameter

> -----Original Message-----
> From: Andrew Lunn <andrew@...n.ch>
> Sent: giovedì 28 febbraio 2019 16:33
> To: Flavio Suligoi <f.suligoi@...m.it>
> Cc: Jeff Kirsher <jeffrey.t.kirsher@...el.com>; David S . Miller
> <davem@...emloft.net>; intel-wired-lan@...ts.osuosl.org;
> netdev@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH v3] net: e1000e: add MAC address kernel cmd line
> parameter
> 
> On Thu, Feb 28, 2019 at 02:52:31PM +0100, Flavio Suligoi wrote:
> > Sometimes, in some embedded systems boards (i.e. ARM boards),
> > the NVM eeprom is not mounted, to save cost and space.
> >
> > In this case it is necessary to bypass the NVM management
> > and directly force the MAC address using a kernel command-line
> > parameter (macaddr).
> 
> Hi Flavio
> 
> Why not use device tree, since this is an ARM platform?

Hi Andrew,

we produce a lot of boards and we have to change the MAC address, from u-boot, for every board.
So I must save in the u-boot environment (SPI NOR flash) the MAC address for every board.

Flavio
> 
>     Andrew