From: Iker Pedrosa <ikerpedrosam@gmail.com>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@kernel.org>,
Ulf Hansson <ulfh@kernel.org>, Ulf Hansson <ulfh@kernel.org>,
Yixun Lan <dlan@kernel.org>
Cc: devicetree@vger.kernel.org,
Margherita Milani <margherita.milani@amarulasolutions.com>,
Michael Opdenacker <michael.opdenacker@rootcommit.com>,
Troy Mitchell <troy.mitchell@linux.dev>,
linux-mmc@vger.kernel.org,
Javier Martinez Canillas <javierm@redhat.com>,
linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
spacemit@lists.linux.dev, Iker Pedrosa <ikerpedrosam@gmail.com>
Subject: [PATCH v9 7/8] riscv: dts: spacemit: k1-bananapi-f3: add SD card support with UHS modes
Date: Mon, 11 May 2026 10:54:02 +0200 [thread overview]
Message-ID: <20260511-orangepi-sd-card-uhs-v9-7-ae48c0b2b2cf@gmail.com> (raw)
In-Reply-To: <20260511-orangepi-sd-card-uhs-v9-0-ae48c0b2b2cf@gmail.com>
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 <linux.amoon@gmail.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Tested-by: Margherita Milani <margherita.milani@amarulasolutions.com>
Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
---
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
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next prev parent reply other threads:[~2026-05-11 8:54 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-11 8:53 [PATCH v9 0/8] riscv: spacemit: enable SD card support with UHS modes for OrangePi RV2 Iker Pedrosa
2026-05-11 8:53 ` [PATCH v9 1/8] dt-bindings: mmc: spacemit,sdhci: add pinctrl support for voltage switching Iker Pedrosa
2026-05-11 8:53 ` [PATCH v9 2/8] mmc: sdhci-of-k1: enable essential clock infrastructure for SD operation Iker Pedrosa
2026-05-11 8:53 ` [PATCH v9 3/8] mmc: sdhci-of-k1: add regulator and pinctrl voltage switching support Iker Pedrosa
2026-05-11 8:53 ` [PATCH v9 4/8] mmc: sdhci-of-k1: add comprehensive SDR tuning support Iker Pedrosa
2026-05-11 8:54 ` [PATCH v9 5/8] riscv: dts: spacemit: k1: add SD card controller and pinctrl support Iker Pedrosa
2026-05-11 8:54 ` [PATCH v9 6/8] riscv: dts: spacemit: k1-orangepi-rv2: add SD card support with UHS modes Iker Pedrosa
2026-05-11 8:54 ` Iker Pedrosa [this message]
2026-05-11 8:54 ` [PATCH v9 8/8] riscv: dts: spacemit: k1-musepi-pro: " Iker Pedrosa
2026-05-11 11:43 ` Andre Heider
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