netdev - Re: [RFC PATCH net-next 7/8] net: dsa: mt7530: correct port capabilities of MT7988

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Message-ID: <656cf9e2-2ab9-48ea-9eea-7599f14f3a41@arinc9.com>
Date: Tue, 16 Jan 2024 16:31:34 +0300
From: Arınç ÜNAL <arinc.unal@...nc9.com>
To: Daniel Golle <daniel@...rotopia.org>, Vladimir Oltean <olteanv@...il.com>
Cc: Landen Chao <Landen.Chao@...iatek.com>, DENG Qingfang <dqfext@...il.com>,
 Sean Wang <sean.wang@...iatek.com>, Andrew Lunn <andrew@...n.ch>,
 Florian Fainelli <f.fainelli@...il.com>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Matthias Brugger <matthias.bgg@...il.com>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 mithat.guner@...ont.com, erkin.bozoglu@...ont.com,
 Luiz Angelo Daros de Luca <luizluca@...il.com>, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org
Subject: Re: [RFC PATCH net-next 7/8] net: dsa: mt7530: correct port
 capabilities of MT7988

On 16.01.2024 01:09, Daniel Golle wrote:
> On Mon, Jan 15, 2024 at 11:42:38PM +0200, Vladimir Oltean wrote:
>> On Sat, Jan 13, 2024 at 01:25:28PM +0300, Arınç ÜNAL wrote:
>>> On the switch on the MT7988 SoC, there are only 4 PHYs. That's port 0 to 3.
>>> Set the internal phy cases to '0 ... 3'.
>>>
>>> Signed-off-by: Arınç ÜNAL <arinc.unal@...nc9.com>
>>> Acked-by: Daniel Golle <daniel@...rotopia.org>
>>> ---
>>
>> For this patch to be obviously correct, please make a statement in the
>> commit message about port 4. It doesn't exist at all?
> 
> Correct. As shown in Block Diagram 8.1.1.3 on page 125 of
> MT7988A Wi-Fi 7 Generation Router Platform: Datasheet (Open Version)
> Version: 0.1
> Release Date: 2023-10-18
> which is available publicly on BananaPi's Wiki[1].
> 
> Port 0~3 are TP user ports, Port 6 is internally linked to XGMII of MAC 0.
> Port 4 and 5 are not used at all in this design.
> 
> [1]: https://wiki.banana-pi.org/Banana_Pi_BPI-R4#Documents

Thanks for chiming in Daniel, I will include this on the patch log.

Arınç