Re: [RFC PATCH v2 3/7] dt-bindings: net: amlogic,meson-dwmac: add amlogic,t7-dwmac

[Andrew Lunn <andrew@lunn.ch>]

On Wed, Oct 07, 2026 at 09:26:23AM +0100, Lucas Tanure wrote:
> The T7 has the same ethernet glue as the G12A, but the controller
> reaches memory through a pipeline stage that this SoC inserts in the
> bus path. That stage has a gate of its own, which no other member of
> the family has, and nothing else in Linux claims it. It is therefore
> switched off as unused, and the port can then no longer finish a
> transfer.
> 
> Describing it needs a fourth clock, and the fourth clock of the
> existing list drives the timing adjustment logic, which the T7 never
> uses. So the T7 gets a list of its own with the gate in that place,
> under the name the SD and eMMC controllers already use.
> 
> Assisted-by: LLM
> Signed-off-by: Lucas Tanure <tanure@linux.com>
> ---
>  .../bindings/net/amlogic,meson-dwmac.yaml     | 47 +++++++++++++++++++
>  1 file changed, 47 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
> index 90ef79161ab1..96118b4d1560 100644
> --- a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml
> @@ -23,6 +23,7 @@ select:
>            - amlogic,meson-gxbb-dwmac
>            - amlogic,meson-axg-dwmac
>            - amlogic,meson-g12a-dwmac
> +          - amlogic,t7-dwmac

Since you are adding a new compatible, lets cleanly fix up the RGMII
delay mess for this compatible. Skip all the existing code touching
RGMII delays and add new code which is invoked when this compatible is
seen.

	Andrew