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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Richard Cochran , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, sophgo@lists.linux.dev, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Yixun Lan , Longbin Li , Conor Dooley Subject: [PATCH net-next] dt-bindings: net: Add support for Sophgo CV1800 dwmac Date: Thu, 3 Jul 2025 10:12:19 +0800 Message-ID: <20250703021220.124195-1-inochiama@gmail.com> X-Mailer: git-send-email 2.50.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The GMAC IP on CV1800 series SoC is a standard Synopsys DesignWare MAC (version 3.70a). Add necessary compatible string for this device. Signed-off-by: Inochi Amaoto Acked-by: Conor Dooley --- The binding patch is split from the origianl series "[PATCH net-next RFC v4 0/4] riscv: dts: sophgo: Add ethernet support for cv18xx". Change from origianl RFC v4: - https://lore.kernel.org/all/20250701011730.136002-1-inochiama@gmail.com 2. remove status, add "phy-handle" and "phy-mode" for binding test. --- .../bindings/net/sophgo,cv1800b-dwmac.yaml | 114 ++++++++++++++++++ 1 file changed, 114 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/sophgo,cv1800b-dw= mac.yaml diff --git a/Documentation/devicetree/bindings/net/sophgo,cv1800b-dwmac.yam= l b/Documentation/devicetree/bindings/net/sophgo,cv1800b-dwmac.yaml new file mode 100644 index 000000000000..b89456f0ef83 --- /dev/null +++ b/Documentation/devicetree/bindings/net/sophgo,cv1800b-dwmac.yaml @@ -0,0 +1,114 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/sophgo,cv1800b-dwmac.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Sophgo CV1800B DWMAC glue layer + +maintainers: + - Inochi Amaoto + +select: + properties: + compatible: + contains: + enum: + - sophgo,cv1800b-dwmac + required: + - compatible + +properties: + compatible: + items: + - const: sophgo,cv1800b-dwmac + - const: snps,dwmac-3.70a + + reg: + maxItems: 1 + + clocks: + items: + - description: GMAC main clock + - description: PTP clock + + clock-names: + items: + - const: stmmaceth + - const: ptp_ref + + interrupts: + maxItems: 1 + + interrupt-names: + maxItems: 1 + + resets: + maxItems: 1 + + reset-names: + const: stmmaceth + +required: + - compatible + - reg + - clocks + - clock-names + - interrupts + - interrupt-names + - resets + - reset-names + +allOf: + - $ref: snps,dwmac.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + + ethernet@4070000 { + compatible =3D "sophgo,cv1800b-dwmac", "snps,dwmac-3.70a"; + reg =3D <0x04070000 0x10000>; + clocks =3D <&clk 35>, <&clk 36>; + clock-names =3D "stmmaceth", "ptp_ref"; + interrupts =3D <31 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names =3D "macirq"; + phy-handle =3D <&internal_ephy>; + phy-mode =3D "internal"; + resets =3D <&rst 12>; + reset-names =3D "stmmaceth"; + rx-fifo-depth =3D <8192>; + tx-fifo-depth =3D <8192>; + snps,multicast-filter-bins =3D <0>; + snps,perfect-filter-entries =3D <1>; + snps,aal; + snps,txpbl =3D <8>; + snps,rxpbl =3D <8>; + snps,mtl-rx-config =3D <&gmac0_mtl_rx_setup>; + snps,mtl-tx-config =3D <&gmac0_mtl_tx_setup>; + snps,axi-config =3D <&gmac0_stmmac_axi_setup>; + + mdio { + compatible =3D "snps,dwmac-mdio"; + #address-cells =3D <1>; + #size-cells =3D <0>; + }; + + gmac0_mtl_rx_setup: rx-queues-config { + snps,rx-queues-to-use =3D <1>; + queue0 {}; + }; + + gmac0_mtl_tx_setup: tx-queues-config { + snps,tx-queues-to-use =3D <1>; + queue0 {}; + }; + + gmac0_stmmac_axi_setup: stmmac-axi-config { + snps,blen =3D <16 8 4 0 0 0 0>; + snps,rd_osr_lmt =3D <2>; + snps,wr_osr_lmt =3D <1>; + }; + }; -- 2.50.0