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Received: from authenticated user by hall.aurel32.net with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1wPBrI-000000032ln-1GvH; Tue, 19 May 2026 06:15:08 +0200 From: Aurelien Jarno To: linux-kernel@vger.kernel.org, Rob Herring , Krzysztof Kozlowski , Conor Dooley , Yixun Lan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti Cc: Aurelien Jarno , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-riscv@lists.infradead.org (open list:RISC-V ARCHITECTURE), spacemit@lists.linux.dev (open list:RISC-V SPACEMIT SoC Support) Subject: [PATCH v2 4/5] riscv: dts: spacemit: enable SD card support on Milk-V Jupiter Date: Tue, 19 May 2026 06:12:38 +0200 Message-ID: <20260519041458.3287843-5-aurelien@aurel32.net> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260519041458.3287843-1-aurelien@aurel32.net> References: <20260519041458.3287843-1-aurelien@aurel32.net> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add complete SD card controller support with UHS high-speed modes. - Enable sdhci0 controller with 4-bit bus width - Configure card detect GPIO with pull-up - 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 - Alias it as mmc1 Signed-off-by: Aurelien Jarno --- .../boot/dts/spacemit/k1-milkv-jupiter.dts | 21 ++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) v2: no changes diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts index eb53198b95061..0c13b7a401c3f 100644 --- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts +++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts @@ -18,6 +18,7 @@ aliases { i2c2 = &i2c2; i2c8 = &i2c8; mmc0 = &emmc; + mmc1 = &sdhci0; serial0 = &uart0; }; @@ -283,7 +284,7 @@ buck6 { regulator-always-on; }; - aldo1 { + aldo1: aldo1 { regulator-min-microvolt = <500000>; regulator-max-microvolt = <3400000>; regulator-boot-on; @@ -418,6 +419,24 @@ uboot@a00000 { }; }; +&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_LOW | 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"; +}; + &uart0 { pinctrl-names = "default"; pinctrl-0 = <&uart0_2_cfg>; -- 2.53.0