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[60.250.196.139]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-35b9db7dfe6sm2166285a91.8.2026.03.15.22.54.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 15 Mar 2026 22:54:34 -0700 (PDT) From: Joey Lu To: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, mcoquelin.stm32@gmail.com, richardcochran@gmail.com Cc: alexandre.torgue@foss.st.com, joabreu@synopsys.com, ychuang3@nuvoton.com, schung@nuvoton.com, yclu4@nuvoton.com, peppe.cavallaro@st.com, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org, linux-stm32@st-md-mailman.stormreply.com, Joey Lu Subject: [PATCH net-next v14 0/3] Add support for Nuvoton MA35D1 GMAC Date: Mon, 16 Mar 2026 13:54:24 +0800 Message-ID: <20260316055427.1310569-1-a0987203069@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This patch series is submitted to add GMAC support for Nuvoton MA35D1 SoC platform. This work involves implementing a GMAC driver glue layer based on Synopsys DWMAC driver framework to leverage MA35D1's dual GMAC interface capabilities. Overview: 1. Added a GMAC driver glue layer for MA35D1 SoC, providing support for the platform's two GMAC interfaces. 2. Added device tree settings, with specific configurations for our development boards: a. SOM board: Configured for two RGMII interfaces. b. IoT board: Configured with one RGMII and one RMII interface. 3. Added dt-bindings for the GMAC interfaces. v14: - Fixed dt_binding_check compilation errors in the YAML file. v13: - Fixed YAML with dt_binding_check - Added callback for plat_dat->phy_interface - Updated PHY-related setting helper function - Renamed registers and values to avoid misleading names v12: - Drop private structure nvt_priv_data - Fix error propagation to preserve probe deferral - Refactor internal delay handling into a dedicated helper - Move FIFO and filter configuration from driver to Device Tree - Update DT binding to include "snps,dwmac-3.70a" compatible v11: - Propagate syscon lookup errors to allow proper probe deferral. v10: - Update DTS/DTSI files to follow proper hierarchy and port modeling v9: - Fixed file permissions. (YAML, driver, DTS) - Moved phy-handle and PHY-related properties from SoC dtsi to board dts. v8: Changes since v7: - Rebased onto the latest net-next. - Removed unused symbol. - stmmac parent driver now reads hardware features directly to support Wake-on-LAN via magic packet, so PMT-related overrides in this driver have been removed. - Update dwmac-nuvoton driver: - Update the license to GPL. - Improve the description in Kconfig. v7: - Update dwmac-nuvoton driver - Update probe function to use stmmac_pltfr_probe instead. v6: - Update dwmac-nuvoton driver - Use NVT as the previx for all functions, structs, and defines. - Remove unnecessary comments. v5: - Update yaml - Remove the properties already defined in snps dwmac. - Update dwmac-nuvoton driver - Add a comment to explain the override of PMT flag. v4: - Update yaml - Remove unnecessary property 'select'. - Remove unnecessary compatible entries and fix items. - Specify number of entries for 'reg'. - Remove already defined property 'phy-handle'. - Update example. - Modify the property internal path delay to match the driver. - Update dtsi - Move 'status' to be the last property. - Update dwmac-nuvoton driver - Use remove instead of remove_new. - Use dev_err_probe instead. v3: - Update yaml - Fix for dt_binding_check warnings & errors. - Add compatible in snps dwmac. - Update dtsi - Update dtsi to follow examples in yaml. - Update dwmac-nuvoton driver - Fix for auto build test warnings. - Invalid path delay arguments will be returned. v2: - Update yaml - Rename file to align with the compatible property. - Add an argument to syscon to replace mac-id, with corresponding descriptions. - Use tx-internal-delay-ps and rx-internal-delay-ps properties for configurable path delay with corresponding descriptions, allowing selection between GMAC internal and PHY. - Add all supported phy-mode options. - Remove unused properties. - Update dtsi - Modify syscon configuration to include an argument for GMAC interface selection. - Update dwmac-nuvoton driver - Remove redundant device information print statements. - Remove non-global parameters. - Retrieve GMAC interface selection from the syscon argument. - Parse Tx and Rx path delays by correct properties. - Update configurations to support Wake-on-LAN. Joey Lu (3): dt-bindings: net: nuvoton: Add schema for Nuvoton MA35 family GMAC arm64: dts: nuvoton: Add Ethernet nodes net: stmmac: dwmac-nuvoton: Add dwmac glue for Nuvoton MA35 family .../bindings/net/nuvoton,ma35d1-dwmac.yaml | 140 ++++++++++++++++++ .../devicetree/bindings/net/snps,dwmac.yaml | 1 + .../boot/dts/nuvoton/ma35d1-iot-512m.dts | 25 ++++ .../boot/dts/nuvoton/ma35d1-som-256m.dts | 24 +++ arch/arm64/boot/dts/nuvoton/ma35d1.dtsi | 52 +++++++ drivers/net/ethernet/stmicro/stmmac/Kconfig | 12 ++ drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + .../ethernet/stmicro/stmmac/dwmac-nuvoton.c | 136 +++++++++++++++++ 8 files changed, 391 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/nuvoton,ma35d1-dwmac.yaml create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-nuvoton.c -- 2.43.0