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Mon, 11 May 2026 01:54:38 -0700 (PDT) From: Iker Pedrosa Date: Mon, 11 May 2026 10:54:02 +0200 Subject: [PATCH v9 7/8] riscv: dts: spacemit: k1-bananapi-f3: add SD card support with UHS modes Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260511-orangepi-sd-card-uhs-v9-7-ae48c0b2b2cf@gmail.com> References: <20260511-orangepi-sd-card-uhs-v9-0-ae48c0b2b2cf@gmail.com> In-Reply-To: <20260511-orangepi-sd-card-uhs-v9-0-ae48c0b2b2cf@gmail.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Adrian Hunter , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Yixun Lan , Ulf Hansson , Ulf Hansson , Yixun Lan Cc: Troy Mitchell , 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 , Anand Moon , Margherita Milani X-Mailer: b4 0.14.3 Add complete SD card controller support with UHS high-speed modes. - Enable sdhci0 controller with 4-bit bus width - Configure card detect GPIO with inversion - 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 This enables full SD card functionality including high-speed UHS modes for improved performance. Suggested-by: Anand Moon Tested-by: Anand Moon Tested-by: Margherita Milani Signed-off-by: Iker Pedrosa --- arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts index e20daa50a152..8fea6e87acec 100644 --- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts +++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts @@ -221,7 +221,7 @@ buck3_1v8: buck3 { regulator-always-on; }; - buck4 { + buck4: buck4 { regulator-min-microvolt = <500000>; regulator-max-microvolt = <3300000>; regulator-ramp-delay = <5000>; @@ -242,7 +242,7 @@ buck6 { regulator-always-on; }; - aldo1 { + aldo1: aldo1 { regulator-min-microvolt = <500000>; regulator-max-microvolt = <3400000>; regulator-boot-on; @@ -374,3 +374,21 @@ hub_3_0: hub@2 { reset-gpios = <&gpio K1_GPIO(124) GPIO_ACTIVE_LOW>; }; }; + +&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>; + vqmmc-supply = <&aldo1>; + sd-uhs-sdr25; + sd-uhs-sdr50; + sd-uhs-sdr104; + status = "okay"; +}; -- 2.54.0