netdev - Re: [PATCH] dt-bindings: net: dsa: realtek-smi: convert to YAML schema

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Date:   Sun, 16 Jan 2022 01:15:36 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Luiz Angelo Daros de Luca <luizluca@...il.com>
Cc:     devicetree@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Olof Johansson <olof@...om.net>,
        Arınç ÜNAL <arinc.unal@...nc9.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        "open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dt-bindings: net: dsa: realtek-smi: convert to YAML schema

On Wed, Jan 5, 2022 at 12:44 AM Luiz Angelo Daros de Luca
<luizluca@...il.com> wrote:

> BTW, I couldn't find a datasheet for rtl8366rb.

There is none... all I have is a code dump from realtek.
The custom header had to be reverse engineered.

> The commit message
> says it is from a DIR-685 but wikidevi days that device has a
> RTL8366SR, which is described as "SINGLE-CHIP 5+1-PORT 10/100/1000
> MBPS SWITCH CONTROLLER WITH DUAL MAC INTERFACES".

The device most definitely has the RTL8366RB, as can be seen in the
PCB photo here:
https://www.redeszone.net/app/uploads-redeszone.net/d-link_dir-685_analisis_15.jpg

> Do you have any suggestions?

The DIR-685 has WAN + 4 x LAN and the WAN port is handled in a separate
register from the LAN ports (suggesting it can also do an optical
line) so I think
it's 4 + 1.

Yours,
Linus Walleij