netdev - Re: [PATCH net-next v8 2/2] net: stmmac: Add support for Allwinner A523 GMAC200

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Message-ID: <02355e42-9b63-4ea5-a75f-0f4e20323379@redhat.com>
Date: Wed, 1 Oct 2025 10:05:58 +0200
From: Paolo Abeni <pabeni@...hat.com>
To: Jakub Kicinski <kuba@...nel.org>, Heiner Kallweit <hkallweit1@...il.com>,
 Russell King <linux@...linux.org.uk>, Chen-Yu Tsai <wens@...nel.org>
Cc: Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
 Jernej Skrabec <jernej@...nel.org>, Samuel Holland <samuel@...lland.org>,
 netdev@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
 linux-kernel@...r.kernel.org, Andre Przywara <andre.przywara@....com>,
 Jernej Skrabec <jernej.skrabec@...il.com>
Subject: Re: [PATCH net-next v8 2/2] net: stmmac: Add support for Allwinner
 A523 GMAC200

On 10/1/25 9:25 AM, Paolo Abeni wrote:
> On 10/1/25 2:20 AM, Jakub Kicinski wrote:
>> On Mon, 29 Sep 2025 18:08:04 -0700 Jakub Kicinski wrote:
>>> On Fri, 26 Sep 2025 03:15:59 +0800 Chen-Yu Tsai wrote:
>>>> The Allwinner A523 SoC family has a second Ethernet controller, called
>>>> the GMAC200 in the BSP and T527 datasheet, and referred to as GMAC1 for
>>>> numbering. This controller, according to BSP sources, is fully
>>>> compatible with a slightly newer version of the Synopsys DWMAC core.
>>>> The glue layer around the controller is the same as found around older
>>>> DWMAC cores on Allwinner SoCs. The only slight difference is that since
>>>> this is the second controller on the SoC, the register for the clock
>>>> delay controls is at a different offset. Last, the integration includes
>>>> a dedicated clock gate for the memory bus and the whole thing is put in
>>>> a separately controllable power domain.  
>>>
>>> Hi Andrew, does this look good ?
>>>
>>> thread: https://lore.kernel.org/20250925191600.3306595-3-wens@kernel.org
>>
>> Adding Heiner and Russell, in case Andrew is AFK.
>>
>> We need an ack from PHY maintainers, the patch seems to be setting
>> delays regardless of the exact RMII mode. I don't know these things..
> 
> The net-next PR is upon us, let's defer even this series to the next cycle.
> 
> @Chen-Yu Tsai: please re-post it when net-next will reopen after Oct
> 12th, thanks!

To be clear: given Russell's ack I'm applying the series now, no need to
repost.

Thanks,

Paolo