Re: [PATCH v3 3/8] net: stmmac: dwmac-meson8b: add support for the Amlogic T7

On Sat, Oct 10, 2026 at 12:59 PM Lucas Tanure [off-list ref] wrote:

The glue registers on the T7 are laid out exactly as the G12A ones, RX
delay field included, so the T7 can reuse the G12A settings.

What it does not share is how the controller reaches memory. That path
runs through a pipeline stage with a gate of its own, and no other
device has any use for that gate. Nothing claims it, so it is switched
off as unused and a transfer that has started can never finish.

Without that gate the controller cannot do DMA at all, so it is
required rather than optional: a clear probe failure beats an
undiagnosable hang later.

Assisted-by: LLM
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Lucas Tanure <redacted>

Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>