linux-kernel - Re: [PATCH v3 8/8] ARM: dts: sun7i: Add ethernet alias for GMAC

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAGb2v659T_QTLChB0NRS0seQvwDBCmTAH6UBEghZng9Ac6uL4g@mail.gmail.com>
Date:	Wed, 5 Feb 2014 12:43:18 +0800
From:	Chen-Yu Tsai <wens@...e.org>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	Emilio Lopez <emilio@...pez.com.ar>,
	Mike Turquette <mturquette@...aro.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	linux-sunxi <linux-sunxi@...glegroups.com>,
	devicetree <devicetree@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 8/8] ARM: dts: sun7i: Add ethernet alias for GMAC

On Tue, Feb 4, 2014 at 3:38 AM, Maxime Ripard
<maxime.ripard@...e-electrons.com> wrote:
> On Mon, Feb 03, 2014 at 11:32:26AM +0800, Chen-Yu Tsai wrote:
>> U-Boot will insert MAC address into the device tree image.
>> It looks up ethernet[0-5] aliases to find the ethernet nodes.
>> Alias GMAC as ethernet0, as it is the only ethernet controller used.
>>
>> Signed-off-by: Chen-Yu Tsai <wens@...e.org>
>> ---
>>  arch/arm/boot/dts/sun7i-a20.dtsi | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
>> index 65fb8d0..c48fb11 100644
>> --- a/arch/arm/boot/dts/sun7i-a20.dtsi
>> +++ b/arch/arm/boot/dts/sun7i-a20.dtsi
>> @@ -17,7 +17,7 @@
>>       interrupt-parent = <&gic>;
>>
>>       aliases {
>> -             ethernet0 = &emac;
>> +             ethernet0 = &gmac;
>>       };
>
> I'm not very fond of this patch.
>
> People might rely on the fact that ethernet0 is actually the emac, and
> are expecting u-boot to fill the ethaddr variable to the emac, and not
> the gmac.
>
> Since u-boot is totally able to deal with several ethernet addresses,
> please add it as ethernet1.

Actually I think we should override this in the board dts.
The boards we currently support can only use emac or gmac,
and in our u-boot tree, they have been converted to using
gmac. If any future boards support both emac and gmac, we
can address the ordering then. And the ordering should
match u-boot.

What do you think?


Cheers
ChenYu
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/