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[23.244.200.70]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-87bc3574e71sm25978806d6.36.2025.10.10.18.48.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Oct 2025 18:48:38 -0700 (PDT) From: Joshua Milas To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, unicorn_wang@outlook.com, inochiama@gmail.com, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, alexander.sverdlin@gmail.com, rabenda.cn@gmail.com, thomas.bonnefille@bootlin.com, chao.wei@sophgo.com, liujingqi@lanxincomputing.com Cc: josh.milas@gmail.com, devicetree@vger.kernel.org, sophgo@lists.linux.dev, linux-riscv@lists.infradead.org Subject: [PATCH 3/3] riscv64: dts: sophgo: add initial Milk-V Duo S board support Date: Fri, 10 Oct 2025 21:48:11 -0400 Message-ID: <20251011014811.28521-4-josh.milas@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251011014811.28521-1-josh.milas@gmail.com> References: <20251011014811.28521-1-josh.milas@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit This adds initial riscv support for the Milk-V Duo S board [1] making it possible to boot Linux to the command line. Link: https://milkv.io/duo-s [1] Signed-off-by: Joshua Milas --- arch/riscv/boot/dts/sophgo/Makefile | 1 + .../boot/dts/sophgo/cv1812h-milkv-duo-s.dts | 110 ++++++++++++++++++ 2 files changed, 111 insertions(+) create mode 100644 arch/riscv/boot/dts/sophgo/cv1812h-milkv-duo-s.dts diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile index 6f65526d4193..49d6ae4724ea 100644 --- a/arch/riscv/boot/dts/sophgo/Makefile +++ b/arch/riscv/boot/dts/sophgo/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.dtb +dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-milkv-duo-s.dtb dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-licheerv-nano-b.dtb dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-milkv-pioneer.dtb dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-evb-v1.dtb diff --git a/arch/riscv/boot/dts/sophgo/cv1812h-milkv-duo-s.dts b/arch/riscv/boot/dts/sophgo/cv1812h-milkv-duo-s.dts new file mode 100644 index 000000000000..2ab46ec1fc0e --- /dev/null +++ b/arch/riscv/boot/dts/sophgo/cv1812h-milkv-duo-s.dts @@ -0,0 +1,110 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) + +/dts-v1/; + +#include +#include "cv1812h.dtsi" + +/ { + model = "Milk-V Duo S"; + compatible = "milkv,duo-s", "sophgo,cv1812h"; + + aliases { + mmc0 = &sdhci0; + serial0 = &uart0; + serial1 = &uart1; + serial2 = &uart2; + serial3 = &uart3; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; +}; + +&osc { + clock-frequency = <25000000>; +}; + +&dmac { + status = "okay"; +}; + +&emmc { + bus-width = <4>; + no-1-8-v; + cap-mmc-hw-reset; + no-sd; + no-sdio; + non-removable; + status = "okay"; +}; + +&gmac0 { + status = "okay"; +}; + +&i2c1 { + status = "okay"; +}; + +&i2c2 { + status = "okay"; +}; + +&i2c3 { + status = "okay"; +}; + +&i2c4 { + status = "okay"; +}; + +&mdio { + status = "okay"; +}; + +&saradc { + status = "okay"; +}; + +&sdhci0 { + bus-width = <4>; + no-1-8-v; + disable-wp; + status = "okay"; +}; + +&sdhci1 { + bus-width = <4>; + cap-sdio-irq; + no-mmc; + no-sd; + non-removable; + status = "okay"; +}; + +&spi0 { + status = "okay"; +}; + +&spi3 { + status = "okay"; +}; + +&uart0 { + status = "okay"; +}; + +&uart1 { + status = "okay"; +}; + +&uart2 { + status = "okay"; +}; + +&uart3 { + status = "okay"; +}; + -- 2.51.0