[PATCH net-next v2 0/2] net: stmmac: add Allwinner H616 EMAC1 support
Maxime Chevallier
maxime.chevallier at bootlin.com
Wed Sep 16 00:59:18 PDT 2026
Hi,
On 9/16/26 05:07, James Hilliard wrote:
> The H616 secondary EMAC supports RMII at 10/100 Mbps and uses a separate
> system-control clock register at offset 0x34. Add its binding and a
> sun8i stmmac variant using that register. A distinct compatible without
> an older fallback prevents the driver from using EMAC0's clock register.
>
> EMAC1 connects internally to the co-packaged AC200 or AC300 EPHY and has
> no external PHY pins. Leave PHY initialization to the PHY driver instead
> of using the H3 internal-PHY controls. The RMII-only variant does not
> expose the RGMII clock-delay properties.
>
> The AC200/AC300 EPHY driver and package bindings are already in
> net-next. This series separates the H616 EMAC1 MAC driver and binding
> support from the earlier combined series. PWM, MFD and device-tree
> enablement are being handled separately.
>
> Signed-off-by: James Hilliard <james.hilliard1 at gmail.com>
> ---
> Changes in v2:
> - Drop EMAC1 TX/RX clock-delay property support and keep the existing
> RGMII-only delay descriptions unchanged, as requested by Maxime Ripard.
> - Clarify that EMAC1 connects internally to a co-packaged PHY, not an
> external PHY or the H3-style internal-PHY controls.
> - Rebase onto current net-next.
> - Link to v1: https://patch.msgid.link/20260915-submit-h616-emac1-v1-v1-0-195de0bb1f8a@gmail.com
I didn't see that V2, but in all fairness you're not supposed to iterate
this fast. 24 hours between submissions, please :
https://docs.kernel.org/process/maintainer-netdev.html
There were discussions on Alastair's submission too, the MUX, clock,
reset part.
Adding Alastair so that he can test it on his board, and see what's missing.
Maxime
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