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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Maxime Coquelin , Alexandre Torgue , Richard Cochran , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , "Russell King (Oracle)" , Yao Zi , Yanteng Si , Vladimir Oltean , Inochi Amaoto , Lad Prabhakar , Chen-Yu Tsai , Choong Yong Liang , Shangjuan Wei , Jernej Skrabec , Boon Khai Ng , Maxime Chevallier , Quentin Schulz , Giuseppe Cavallaro , Jose Abreu Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Longbin Li Subject: [PATCH net-next v2 0/3] riscv: spacemit: Add ethernet support for K3 Date: Wed, 21 Jan 2026 15:13:08 +0800 Message-ID: <20260121071315.940130-1-inochiama@gmail.com> X-Mailer: git-send-email 2.52.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add initial support for ethernet controller of the Spacemit K3 SoC. This ethernet controller is almost a standard Synopsys DesignWare MAC (version 5.40a). This controller require a syscon device to configure some basic features, like interface type and internal delay. Change from v1: - https://lore.kernel.org/netdev/20260120043609.910302-1-inochiama@gmail.com patch 1: 1. remove phy clock patch 3: 1. improve comment and include something special about Spacmit K3 dwmac 2. reorder the included file 3. fix wrong delay macro used in spacemit_dwmac_set_delay. 4. add check for maximum supported delay. 5. use DIV_ROUND_CLOSEST to calculate best delay configuration. 6. use assign for the ctrl register initial value. 7. fix input when calling of_property_read_u32(). Inochi Amaoto (3): dt-bindings: net: Add support for Spacemit K3 dwmac net: stmmac: platform: Add snps,dwmac-5.40a IP compatible string net: stmmac: Add glue layer for Spacemit K3 SoC .../devicetree/bindings/net/snps,dwmac.yaml | 3 + .../bindings/net/spacemit,k3-dwmac.yaml | 103 ++++++++ drivers/net/ethernet/stmicro/stmmac/Kconfig | 12 + drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + .../ethernet/stmicro/stmmac/dwmac-spacemit.c | 221 ++++++++++++++++++ .../ethernet/stmicro/stmmac/stmmac_platform.c | 1 + 6 files changed, 341 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/spacemit,k3-dwmac.yaml create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-spacemit.c -- 2.52.0