netdev - Re: [RFC PATCH 08/13] dwmac-meson8b: add support for phy selection

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]

Date:   Mon, 31 Oct 2016 15:23:29 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     khilman@...libre.com, carlo@...one.org, linus.walleij@...aro.org,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [RFC PATCH 08/13] dwmac-meson8b: add support for phy selection

On 10/21/2016 06:08 PM, Andrew Lunn wrote:
> Hi Neil
> 
>> Yes this would be a good idea if we were able to scan the internal
>> and external PHYs at the same time, but with our limited knowledge
>> the values we write in the register seems to switch a mux for the
>> whole RMII and MDIO signals to either interface.
> 
> Ah, O.K. So you need something like:
> 
> drivers/net/phy/mdio-mux-mmioreg.c
> 
> This seems to be limited to a single byte for the mux register, so you
> might need to make some extensions.
> 
>       Andrew
> 

Thanks for the hint, I will try to make use of this !

Neil