From nobody Thu Apr 9 15:00:55 2026 Received: from mail-wm1-f41.google.com (mail-wm1-f41.google.com [209.85.128.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5E9CA41B37F for ; Mon, 2 Mar 2026 15:14:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772464450; cv=none; b=EEFrEMDeRrGLh9Je9wdMiLAcKE9OpxnJQuZ+3sVYktAURy7kWPomDzI/2VyqmgLxsqxwgx/fqtaM5Co++QxL+5U6TpFj6Ij92kwgk9iR9BcLk3nA2BtKqkJd+hF7Czv2hg9FB8iZaOo594bmuvCPUJf1fsjYPHOHlVspJzbIO84= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772464450; c=relaxed/simple; bh=dcEFhqPvKdwQuanA4mTY4Hc01u8XbBg6NksC+/+CuBo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=TYalDIEAcyFUdtKh3HmouwhJ+5v46/9Hvsh8umt0aaVuQViXzENVaBUltXgedSQwI40keT0GjPxyW1zr66VAOdiFoyZ/QddM52OarlPYt/SPU1W5ruV7rmVkG2C8m/ZJsvQm3Rd71tbsPDPWk5yVNlqbMlFNA5fnnkKF/fmMAlo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=a2nmc/UJ; arc=none smtp.client-ip=209.85.128.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="a2nmc/UJ" Received: by mail-wm1-f41.google.com with SMTP id 5b1f17b1804b1-4836f363ad2so55221135e9.1 for ; Mon, 02 Mar 2026 07:14:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1772464443; x=1773069243; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=Dz1rwkI02gKLCCAejR8NRcSe9CYDdLI50V/yGcp3k+8=; b=a2nmc/UJNJ2fU4F7yWSUwWs5G0FeY0nAqEfp0qttKLf4N+EKgMrxUZH2RK+8o+iMNJ EZMERFdKFb32af7/Ge7Yl/s6NP6Iz+7Kn96czf7DhBEoOqf+E63fF3bj0sX+Iw7ZMrDC 67SsFMD5SF7M37FtGrSou8RekQmwA88vRMW+kLwvUD9I486hzHg7WVMLsguA9/UKlOid /jpm8EoYnzmufNktRPISdPCpUg6LWpW9aY9WMirVUItPQnX24IDXHoJiP/YZTXAcE7I9 DZYc4Zrvb/cqpqZLoQcAxELcbqmaRwDr+oUYZeGDGvC3Npg62TsyJ085v2SLkF2SnmrJ uAvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772464443; x=1773069243; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=Dz1rwkI02gKLCCAejR8NRcSe9CYDdLI50V/yGcp3k+8=; b=lbZjpxJgKpv3jNDGxTbBPL+cl0PieIt49jwJgYcu5unzyXM4Ru32FBFkfb/Ps6AjaD BHF1zCUeWws3WvXWjwR9tr3gt6+LFx7j4nJeTYV+eCaSJHjZ4bNVsY2gNSVIHBPEeSV+ /RkDIh9+5PMsJQpyMS6r53/dFZR8EQqmyLvV/jnOInnd+75cexJZq9DRebFMKUjwDu77 +aymz3oOzLP6GxW80OTPrWu8An85AUSkxjQRNMpyEmlBGF4WlAFaqilSBuGHrpCO5kEz OnnMRslPiQMseBWcdkasDsmZ6PPprnxzdpB+PhnHzOvnwLRZpOhs32+Buf4EwtjBCC// RdIw== X-Forwarded-Encrypted: i=1; AJvYcCViqMo9Mlf7DtZi/VI7tk5eU9jtYjyI5ryH7gFvnHsDLKsqlhZYK34A/yVq2CsEeySitl9PffjzBvB49dM=@vger.kernel.org X-Gm-Message-State: AOJu0Ywss1kFAD/qNrfJXWwyUqhXwF4s68FcN5DU27VjrmkugqUooE4s gyMMGTc6plK4VlYe3thdPYEeirVwVaXR6zx0/s9aAAyZXx0UhrDZQoqZ X-Gm-Gg: ATEYQzw9tGP5xez6/30meePqAt31lGCHv7OlA8MkldEUiLCoWNPjqhea1zhTZ7UUCdQ IDEIh9dho6kldpmqlXFqRM0jkDvt6auJWMB+/tHIoO5oGedZbdHwzxqD6LIXmRhzxBbPu3Ys6P8 TUfiD8zRea3aclNQH/eAL2Gv7BWlIMUkgTOwoVheUYI2Vr09sdxVmWq+sR/kWX6DhbjIx+Wj7wX 7OQSF04qZWWaAwoI1cFnKWof6w2qgQ7WeF+dTpEyFnL0yNbbZmXsvCo9IvW0rD7B3zHoMzy9XKC jYJaYAkVQJ/ITK/IT5c5OqUgLYIdKLNnrcjK/L4xq7rIdUnl6vieL4h9Ycst103vSlkGJtJWthx ZTZ5IMT8/7I2bO0xxxNhHhcpE4tZk8sOoR+dkYQQ07zOBrSerxXABzy9oUiHHt7yujrqDXy1EAX OKpp9uOBSPsxTZOAJIxumh/V12zINf5yMYXUQ8HuZNpRV/to1t3SbqGaU7GDvrSBCUVQ== X-Received: by 2002:a05:600c:4e16:b0:47e:e414:b915 with SMTP id 5b1f17b1804b1-483c9bb6564mr218276695e9.2.1772464443134; Mon, 02 Mar 2026 07:14:03 -0800 (PST) Received: from ipedrosa-thinkpadx1carbongen12.rmtes.csb ([67.218.235.131]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-483bd70e692sm437240265e9.7.2026.03.02.07.14.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Mar 2026 07:14:02 -0800 (PST) From: Iker Pedrosa Date: Mon, 02 Mar 2026 16:13:29 +0100 Subject: [PATCH 08/10] riscv: dts: spacemit: k1: add SD card controller and pinctrl support Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260302-orangepi-sd-card-uhs-v1-8-89c219973c0c@gmail.com> References: <20260302-orangepi-sd-card-uhs-v1-0-89c219973c0c@gmail.com> In-Reply-To: <20260302-orangepi-sd-card-uhs-v1-0-89c219973c0c@gmail.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Adrian Hunter , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: Michael Opdenacker , Javier Martinez Canillas , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org, Iker Pedrosa X-Mailer: b4 0.14.2 Add SD card controller infrastructure for SpacemiT K1 SoC with complete pinctrl support for both standard and UHS modes. - Add sdhci0 controller definition with clocks, resets and interrupts - Add mmc1_cfg pinctrl for 3.3V standard SD operation - Add mmc1_uhs_cfg pinctrl for 1.8V UHS high-speed operation - Configure appropriate drive strength and power-source properties This provides complete SD card infrastructure that K1-based boards can enable. Signed-off-by: Iker Pedrosa --- arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi | 40 ++++++++++++++++++++++++= ++++ arch/riscv/boot/dts/spacemit/k1.dtsi | 13 +++++++++ 2 files changed, 53 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi b/arch/riscv/boot= /dts/spacemit/k1-pinctrl.dtsi index b13dcb10f4d66022d27307de73a6ea3287e97441..8d82011f1af666fb78c282a2abc= c0cb88f962053 100644 --- a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi +++ b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi @@ -570,4 +570,44 @@ pwm14-1-pins { drive-strength =3D <32>; }; }; + + mmc1_cfg: mmc1-cfg { + mmc1-data-cmd-pins { + pinmux =3D , /* mmc1_d3 */ + , /* mmc1_d2 */ + , /* mmc1_d1 */ + , /* mmc1_d0 */ + ; /* mmc1_cmd */ + bias-pull-up =3D <1>; + drive-strength =3D <7>; + power-source =3D <3300>; + }; + + mmc1-clk-pins { + pinmux =3D ; /* mmc1_clk */ + bias-pull-down =3D <1>; + drive-strength =3D <7>; + power-source =3D <3300>; + }; + }; + + mmc1_uhs_cfg: mmc1-uhs-cfg { + mmc1-data-cmd-pins { + pinmux =3D , /* mmc1_d3 */ + , /* mmc1_d2 */ + , /* mmc1_d1 */ + , /* mmc1_d0 */ + ; /* mmc1_cmd */ + bias-pull-up =3D <1>; + drive-strength =3D <13>; + power-source =3D <1800>; + }; + + mmc1-clk-pins { + pinmux =3D ; /* mmc1_clk */ + bias-pull-down =3D <1>; + drive-strength =3D <13>; + power-source =3D <1800>; + }; + }; }; diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spa= cemit/k1.dtsi index 529ec68e9c23eb2a93c04e9ccd3f22a01c4cc4ff..1e9e4f4f41c196326f20c0e5ae6= 721ea85ea5091 100644 --- a/arch/riscv/boot/dts/spacemit/k1.dtsi +++ b/arch/riscv/boot/dts/spacemit/k1.dtsi @@ -1207,6 +1207,19 @@ emmc: mmc@d4281000 { interrupts =3D <101>; status =3D "disabled"; }; + + sdhci0: mmc@d4280000 { + compatible =3D "spacemit,k1-sdhci"; + reg =3D <0x0 0xd4280000 0x0 0x200>; + clocks =3D <&syscon_apmu CLK_SDH_AXI>, + <&syscon_apmu CLK_SDH0>; + clock-names =3D "core", "io"; + resets =3D <&syscon_apmu RESET_SDH_AXI>, + <&syscon_apmu RESET_SDH0>; + reset-names =3D "axi", "sdh"; + interrupts =3D <99>; + status =3D "disabled"; + }; }; }; }; --=20 2.53.0