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Mon, 02 Mar 2026 07:14:06 -0800 (PST) From: Iker Pedrosa Date: Mon, 02 Mar 2026 16:13:31 +0100 Subject: [PATCH 10/10] riscv: dts: spacemit: k1-orangepi-rv2: 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: <20260302-orangepi-sd-card-uhs-v1-10-89c219973c0c@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 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 - Add AIB register properties for hardware voltage switching - Support UHS-I SDR25, SDR50, and SDR104 modes This enables full SD card functionality including high-speed UHS modes for improved performance. Signed-off-by: Iker Pedrosa --- arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/= boot/dts/spacemit/k1-orangepi-rv2.dts index 414b03f5e6480f05f5d7eeaaa0afb4e86425ae36..f22f7427b3370a6b6c1cd8360b3= 3efc2a285f8d0 100644 --- a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts +++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts @@ -140,3 +140,24 @@ sd_vqmmc: aldo1 { }; }; }; + +&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; + no-sdio; + disable-wp; + cap-sd-highspeed; + vmmc-supply =3D <&sd_vmmc>; + vqmmc-supply =3D <&sd_vqmmc>; + sd-uhs-sdr25; + sd-uhs-sdr50; + sd-uhs-sdr104; + spacemit,aib-mmc1-io-reg =3D <0xD401E81C>; + spacemit,apbc-asfar-reg =3D <0xD4015050>; + spacemit,apbc-assar-reg =3D <0xD4015054>; + status =3D "okay"; +}; --=20 2.53.0