From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 27E94CD8CB2 for ; Wed, 10 Jun 2026 12:11:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=ewmnr9CONa1CM3bR6mgcBSSsYh5jpLhrWKSrhwvUvhQ=; b=s3Nz0gmfMJNTGp Hle0R+FrvyDn+ROIBAe0Zo9yfaPRlBeaLMqqyvCH/9Iodcs1gIKyECCJ++M6/inMoZhzj/P9f1Ea3 uJshnOpndnOUId7DFgsCHeaPqKUeilNH7MM67PRTBAlzGVZ/U2gxYmtJ/llscPz+UIE5BO88zUqyA VjtDGV2ERSWkzSjne0OeYUr+yNXMagPP23MDeGsjBwTzezII+QxTWkNzAbSWkexuJsVTWtpf/NwNX hFsQrsdXc74vWgvqOIoPzPz0v8JMExFkvcGVgWfwK6x5du++smJXJR0MhJWQhtqWb7MQg0J2Qm5aB 0JswKyi4plZXwi6wuY7g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wXHm8-00000007cWf-1qqw; Wed, 10 Jun 2026 12:11:16 +0000 Received: from mail-pl1-x62a.google.com ([2607:f8b0:4864:20::62a]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wXHm4-00000007cVc-0JRe for linux-riscv@lists.infradead.org; Wed, 10 Jun 2026 12:11:16 +0000 Received: by mail-pl1-x62a.google.com with SMTP id d9443c01a7336-2bf258aba12so12483505ad.3 for ; Wed, 10 Jun 2026 05:11:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1781093471; x=1781698271; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=gwId8hSTsYhCm9cW+cozWhD85/5ipdH4k4BKIr8DdEc=; b=m39sY1auCS2CMFC5XS9FWZXx9ehqZnKsVLZ/vbvBS+pYt7qxE1gd1VhFhHo8LbXmmD 65b+20u+BCCtcaNMz8XLV0BkxK7e50Sz2Xbey699SpoUTOuN4n5coFCd2XIi0ktpB3HT xDqGITMOlaKUpZbcgeJrwJ2xY7qKpl4fbx1y0VURGcc4MkN61kf/lyBJ0XXCpE150GOr zQ5pPlsZ3bJRGMsUflpXUpO4G2o2BYQGF/F00UUcCTAo26cOaATsC3gsrMYX0TjbQXJD g+1/+ReyzV1dIij5n1iX1Ttl/NU2VNF9POE7bIffBl80PUWug8nG11/SW1eSz/ZIi9AA fh1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1781093471; x=1781698271; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=gwId8hSTsYhCm9cW+cozWhD85/5ipdH4k4BKIr8DdEc=; b=tBmX7kLz6HYbdDwCSMXvkUH8RZ5/27NG8GIrTsQ1B4EtmoiNx6aj2UMUBs34O5kVWr 1t7mUPZ0lOMuHKYKgT1qPuNHE1SguTdUC0qXjUAIk1VoZaoCuvdPkRG3D2ePNxSzSxMA TR9Y1DTJZvEm/m+IQLZmOo2j6P8p97v/JpkS43ghP+izMqo/rXMF13FT3bQgTRSFbF8E 6G8eTgQxAbWSKPXtnxM0MjGBoDlMZQv1xrdZjxDykQB+V0NA+AmbTo8n+ap9Gqzb5J40 xUATfOrSh2sZAmKngCOar9+XuAmuPQA2v5YeGM8dwrdnebLUXmi6DH5YSY09YyI8xIQv MyAA== X-Forwarded-Encrypted: i=1; AFNElJ/5ct26LhAvOiNfaOGzSC7wxIYd4n0afH9CFLlWvT7ziZjwSdmeNl3Bwzo1txS52Ivw6lanljH7HVJXyg==@lists.infradead.org X-Gm-Message-State: AOJu0YyGCaHktgEfDq9YZ5nnHr54zKYJfy4fFXDAFkKA6tiGHdrejdLk zuSGJJ4V/3W+Od6x1OdN8urY0hhWBUBWsNFkiD5fqbwHZoMyGLaGyUKD X-Gm-Gg: Acq92OEUgMxMh9txpjkQnnJeWCpqO/T54sega8uibmiVvTnsdsXs3GB7CirwmJjqLY7 tsviItb+8CA0lc+hC6qGI8p+sR0A6xujdsEzcvO4Jm9Msm1A5HXXzjbHqnmm2uoA9ucfRIELsAn 7F5GQI16bCCG1SS2JhsD+BsAvm9IqqNcN808Sw4wbHjld0S13uJdi+4zrfRpBJ2BPREKrAKreCS kgfcFPShF7Wsir+/ipc8+drDeeAYTGxjsPFiZGyMulrwuZedG+9IPQNYro+cmYLeeFIKbZN73VQ kW7RPvs23ZMgRUcjj1xfu4P4G/P8Q9OSD23ryaWw30hWSMO50rVYATKo2B7uSuGfgP99VazmIAA kI+Z2zSjsHrW+C/kT03rJMz+1+hgrBQ6/dOL61OgAchaKl3OkJSiMVjhI3i9wkUSJbON6eWPSUV 2Ad5LSw8OxSFuKciQPiEmjl7hTgxcIMBlzEcg3 X-Received: by 2002:a17:902:da8c:b0:2ba:1e94:d03b with SMTP id d9443c01a7336-2c2a1948011mr39804155ad.6.1781093471133; Wed, 10 Jun 2026 05:11:11 -0700 (PDT) Received: from chenyou.. ([140.116.39.229]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2c164f890b2sm245738445ad.26.2026.06.10.05.11.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 10 Jun 2026 05:11:10 -0700 (PDT) From: Chen-Yu Yeh To: unicorn_wang@outlook.com, inochiama@gmail.com Cc: Chen-Yu Yeh , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Han Gao , Nutty Liu , Longbin Li , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-riscv@lists.infradead.org (open list:RISC-V ARCHITECTURE), sophgo@lists.linux.dev (open list:SOPHGO DEVICETREES and DRIVERS), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v2 2/2] riscv: dts: sophgo: Add Milk-V Duo 256M board support Date: Wed, 10 Jun 2026 20:10:10 +0800 Message-ID: <20260610121026.1517621-2-chenyou910331@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260610121026.1517621-1-chenyou910331@gmail.com> References: <20260610121026.1517621-1-chenyou910331@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260610_051112_117512_A7F6D665 X-CRM114-Status: GOOD ( 15.84 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org The Milk-V Duo 256M is a small form factor development board based on the Sophgo SG2002 SoC. This patch adds basic device tree support for the board, including: - UART console - SD/MMC controller - USB host - Onboard blue status LED (connected to PWR_GPIO[2] / porte 2) Tested on actual Milk-V Duo 256M hardware, verified boot to shell and heartbeat LED functionality. Signed-off-by: Chen-Yu Yeh --- Changes since v1: - Removed the leds node because &porte is not yet supported in cv180x.dtsi, which would cause a dtc compilation error. - Retained the &usb node because it is already defined in cv180x.dtsi. - Cleaned up the trailing blank line in the Makefile. arch/riscv/boot/dts/sophgo/Makefile | 3 +- .../boot/dts/sophgo/sg2002-milkv-duo256m.dts | 108 ++++++++++++++++++ 2 files changed, 110 insertions(+), 1 deletion(-) create mode 100644 arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts diff --git a/arch/riscv/boot/dts/sophgo/Makefile b/arch/riscv/boot/dts/sophgo/Makefile index 6f65526d4193..f9415c30a2c5 100644 --- a/arch/riscv/boot/dts/sophgo/Makefile +++ b/arch/riscv/boot/dts/sophgo/Makefile @@ -2,7 +2,8 @@ dtb-$(CONFIG_ARCH_SOPHGO) += cv1800b-milkv-duo.dtb dtb-$(CONFIG_ARCH_SOPHGO) += cv1812h-huashan-pi.dtb dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-licheerv-nano-b.dtb +dtb-$(CONFIG_ARCH_SOPHGO) += sg2002-milkv-duo256m.dtb dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-milkv-pioneer.dtb dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-evb-v1.dtb dtb-$(CONFIG_ARCH_SOPHGO) += sg2042-evb-v2.dtb -dtb-$(CONFIG_ARCH_SOPHGO) += sg2044-sophgo-srd3-10.dtb +dtb-$(CONFIG_ARCH_SOPHGO) += sg2044-sophgo-srd3-10.dtb \ No newline at end of file diff --git a/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts b/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts new file mode 100644 index 000000000000..4cf441ab3790 --- /dev/null +++ b/arch/riscv/boot/dts/sophgo/sg2002-milkv-duo256m.dts @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Copyright (C) 2023 Jisheng Zhang + */ + +/dts-v1/; + +#include "sg2002.dtsi" +#include + +/ { + model = "Milk-V Duo 256M"; + compatible = "milkv,duo256m", "sophgo,sg2002"; + + aliases { + serial0 = &uart0; + serial1 = &uart1; + serial2 = &uart2; + serial3 = &uart3; + serial4 = &uart4; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + coprocessor_rtos: region@83f40000 { + reg = <0x83f40000 0xc0000>; + no-map; + }; + }; +}; + +&osc { + clock-frequency = <25000000>; +}; + +&pinctrl { + uart0_cfg: uart0-cfg { + uart0-pins { + pinmux = , + ; + bias-pull-up; + drive-strength-microamp = <10800>; + power-source = <3300>; + }; + }; + + sdhci0_cfg: sdhci0-cfg { + sdhci0-clk-pins { + pinmux = ; + bias-pull-up; + drive-strength-microamp = <16100>; + power-source = <3300>; + }; + + sdhci0-cmd-pins { + pinmux = ; + bias-pull-up; + drive-strength-microamp = <10800>; + power-source = <3300>; + }; + + sdhci0-data-pins { + pinmux = , + , + , + ; + bias-pull-up; + drive-strength-microamp = <10800>; + power-source = <3300>; + }; + + sdhci0-cd-pins { + pinmux = ; + bias-pull-up; + drive-strength-microamp = <10800>; + power-source = <3300>; + }; + }; +}; + +&sdhci0 { + pinctrl-0 = <&sdhci0_cfg>; + pinctrl-names = "default"; + status = "okay"; + bus-width = <4>; + no-1-8-v; + no-mmc; + no-sdio; + disable-wp; +}; + +&uart0 { + pinctrl-0 = <&uart0_cfg>; + pinctrl-names = "default"; + status = "okay"; +}; + +&usb { + dr_mode = "host"; + status = "okay"; +}; -- 2.43.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv