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[89.182.141.216]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45da0fe2464sm55001966f8f.32.2026.05.20.06.06.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 May 2026 06:06:26 -0700 (PDT) From: Andre Heider To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: Trevor Gamblin , Iker Pedrosa , devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v11] riscv: dts: spacemit: k1-musepi-pro: add SD card support with UHS modes Date: Wed, 20 May 2026 15:06:23 +0200 Message-ID: <20260520130624.1763487-1-a.heider@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: spacemit@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Trevor Gamblin Update the Muse Pi Pro devicetree with SD card support to match what was done for the OrangePi RV2 in [1]. More precisely: - Enable sdhci0 controller with 4-bit bus width - Configure card detect GPIO with internal pull-up support - Connect vmmc-supply to buck4 for 3.3V card power - Connect vqmmc-supply to aldo1 for 1.8V/3.3V I/O switching - Add dual pinctrl states for voltage-dependent pin configuration - Support UHS-I SDR25, SDR50, and SDR104 modes - Add stable MMC device aliases (mmc0 = eMMC, mmc1 = SD card) [1] https://lore.kernel.org/linux-riscv/20260316-orangepi-sd-card-uhs-v3-0-aefd3b7832df@gmail.com/T/# Tested-by: Andre Heider Signed-off-by: Trevor Gamblin Signed-off-by: Iker Pedrosa Signed-off-by: Andre Heider --- Hi, this is just a rebase of Iker's v10 4/4 patch[0] on top of my merged musepi-pro series[1]. [0] https://lore.kernel.org/all/20260515-orangepi-sd-card-uhs-v10-4-094af27e310d@gmail.com/ [1] https://lore.kernel.org/all/20260513071958.29574-1-a.heider@gmail.com/ .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 22 ++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts index 4aef287353cab..0d809e4ad3b1f 100644 --- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts +++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts @@ -19,6 +19,8 @@ aliases { serial0 = &uart0; i2c2 = &i2c2; i2c8 = &i2c8; + mmc0 = &emmc; + mmc1 = &sdhci0; }; chosen { @@ -218,7 +220,7 @@ buck6 { regulator-always-on; }; - aldo1 { + aldo1: aldo1 { regulator-min-microvolt = <500000>; regulator-max-microvolt = <3400000>; regulator-boot-on; @@ -384,3 +386,21 @@ hub_3_0: hub@2 { reset-gpios = <&gpio K1_GPIO(123) GPIO_ACTIVE_LOW>; /* HUB_RST */ }; }; + +&sdhci0 { + pinctrl-names = "default", "uhs"; + pinctrl-0 = <&mmc1_cfg>; + pinctrl-1 = <&mmc1_uhs_cfg>; + bus-width = <4>; + cd-gpios = <&gpio K1_GPIO(80) (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; + no-mmc; + no-sdio; + disable-wp; + cap-sd-highspeed; + vmmc-supply = <&buck4_3v3>; + vqmmc-supply = <&aldo1>; + sd-uhs-sdr25; + sd-uhs-sdr50; + sd-uhs-sdr104; + status = "okay"; +}; -- 2.53.0