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[174.29.1.49]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-6c7a677b3bdsm1718078eaf.6.2026.09.15.20.08.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 15 Sep 2026 20:08:22 -0700 (PDT) From: James Hilliard Subject: [PATCH net-next v2 0/2] net: stmmac: add Allwinner H616 EMAC1 support Date: Tue, 15 Sep 2026 21:07:39 -0600 Message-Id: <20260915-submit-h616-emac1-v1-v2-0-322b32e40eb9@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/22OzQ6CMBCEX4Xs2Zq2/IiefA/DoS0LrLHFtJVgC O9uQY8mc5nMzje7QEBPGOCSLeBxokCjS0YeMjCDcj0yapMHyWXFz6Jg4aUtRTZUomJolRFsEkw U+YnndSGV1pCqT48dzTv2Bg4jczhHaL5JItzRxI263Q4U4ujf+weT2Bu/sfL/WBJn4ly2yLUWX a2uvVX0OJrRQrOu6wcKN2vx1AAAAA== X-Change-ID: 20260914-submit-h616-emac1-v1-143703842abb To: Richard Genoud , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Alexandre Torgue , Giuseppe Cavallaro , Jose Abreu , Maxime Chevallier , Maxime Coquelin Cc: Maxime Ripard , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, James Hilliard X-Mailer: b4 0.15.2 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 --- 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 --- James Hilliard (2): dt-bindings: net: allwinner: add H616 EMAC1 net: stmmac: sun8i: add support for Allwinner H616 EMAC1 .../bindings/net/allwinner,sun8i-a83t-emac.yaml | 13 +++++++++++++ Documentation/devicetree/bindings/net/snps,dwmac.yaml | 2 ++ drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 16 ++++++++++++++++ 3 files changed, 31 insertions(+) --- base-commit: 87b80c2f6b05cad9f0ff9136709c62a0f59923e3 change-id: 20260914-submit-h616-emac1-v1-143703842abb Best regards, -- James Hilliard