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Mon, 23 Mar 2026 03:19:41 -0700 (PDT) From: Iker Pedrosa Date: Mon, 23 Mar 2026 11:19:10 +0100 Subject: [PATCH v4 7/8] riscv: dts: spacemit: k1-bananapi-f3: add SD card support with UHS modes 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: <20260323-orangepi-sd-card-uhs-v4-7-567c9775fd0e@gmail.com> References: <20260323-orangepi-sd-card-uhs-v4-0-567c9775fd0e@gmail.com> In-Reply-To: <20260323-orangepi-sd-card-uhs-v4-0-567c9775fd0e@gmail.com> To: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Adrian Hunter , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Yixun Lan , Yixun Lan 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 , Anand Moon X-Mailer: b4 0.14.2 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 Signed-off-by: Iker Pedrosa --- arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts | 24 +++++++++++++++++++++= +-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts b/arch/riscv/b= oot/dts/spacemit/k1-bananapi-f3.dts index 404b69c47b91f8c37d74a3031dbad0d94a28d1b4..6d042f905d233bde2e29d1366bd= 177b41915ce4b 100644 --- a/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts +++ b/arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts @@ -222,7 +222,7 @@ buck3_1v8: buck3 { regulator-always-on; }; =20 - buck4 { + buck4: buck4 { regulator-min-microvolt =3D <500000>; regulator-max-microvolt =3D <3300000>; regulator-ramp-delay =3D <5000>; @@ -243,7 +243,7 @@ buck6 { regulator-always-on; }; =20 - aldo1 { + aldo1: aldo1 { regulator-min-microvolt =3D <500000>; regulator-max-microvolt =3D <3400000>; regulator-boot-on; @@ -369,3 +369,23 @@ hub_3_0: hub@2 { reset-gpios =3D <&gpio K1_GPIO(124) GPIO_ACTIVE_LOW>; }; }; + +&sdhci0 { + pinctrl-names =3D "default", "state_uhs"; + pinctrl-0 =3D <&mmc1_cfg>; + pinctrl-1 =3D <&mmc1_uhs_cfg>; + bus-width =3D <4>; + cd-gpios =3D <&gpio K1_GPIO(80) GPIO_ACTIVE_HIGH>; + cd-inverted; + broken-cd; + no-mmc; + no-sdio; + disable-wp; + cap-sd-highspeed; + vmmc-supply =3D <&buck4>; + vqmmc-supply =3D <&aldo1>; + sd-uhs-sdr25; + sd-uhs-sdr50; + sd-uhs-sdr104; + status =3D "okay"; +}; --=20 2.53.0