[PATCH v4 1/2] dt-bindings: riscv: spacemit: Add OrangePi R2S board

[PATCH v4 1/2] dt-bindings: riscv: spacemit: Add OrangePi R2S board

[michael.opdenacker]

From: Michael Opdenacker <michael.opdenacker@rootcommit.com>

Document the compatible string for the OrangePi R2S board [1], which
is marketed as using the Ky X1 SoC but is in fact identical in die
and package to the SpacemiT K1 SoC [2].

Link: http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-R2S.html [1]
Link: https://www.spacemit.com/en/key-stone-k1 [2]
Signed-off-by: Michael Opdenacker <michael.opdenacker@rootcommit.com>
---
 Documentation/devicetree/bindings/riscv/spacemit.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/riscv/spacemit.yaml b/Documentation/devicetree/bindings/riscv/spacemit.yaml
index 52fe39296031..9c49482002f7 100644
--- a/Documentation/devicetree/bindings/riscv/spacemit.yaml
+++ b/Documentation/devicetree/bindings/riscv/spacemit.yaml
@@ -23,6 +23,7 @@ properties:
               - bananapi,bpi-f3
               - milkv,jupiter
               - spacemit,musepi-pro
+              - xunlong,orangepi-r2s
               - xunlong,orangepi-rv2
           - const: spacemit,k1
 

[PATCH v4 2/2] riscv: dts: spacemit: Add OrangePi R2S board device tree

[michael.opdenacker]

From: Michael Opdenacker <michael.opdenacker@rootcommit.com>

Add initial device tree support for the OrangePi RV2 board [1], which is
marketed as using the Ky X1 SoC but is identical in die and package
to the SpacemiT K1 SoC [2].

Enable UART0, to boot into a serial console

Two Gigabit Ethernet ports with RGMII interface standard support
are enabled, each port is connected to an external
Motorcomm YT8531C PHY chip which uses the GPIO for reset control.

Enable PDMA.

Enable 8 GB eMMC chip for storage.

Link: http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-R2S.html [1]
Link: https://www.spacemit.com/en/key-stone-k1 [2]
Signed-off-by: Michael Opdenacker <michael.opdenacker@rootcommit.com>
---
 arch/riscv/boot/dts/spacemit/Makefile         |  1 +
 .../boot/dts/spacemit/k1-orangepi-r2s.dts     | 90 +++++++++++++++++++
 2 files changed, 91 insertions(+)
 create mode 100644 arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts

diff --git a/arch/riscv/boot/dts/spacemit/Makefile b/arch/riscv/boot/dts/spacemit/Makefile
index 942ecb38bea0..96b3a13a3944 100644
--- a/arch/riscv/boot/dts/spacemit/Makefile
+++ b/arch/riscv/boot/dts/spacemit/Makefile
@@ -3,3 +3,4 @@ dtb-$(CONFIG_ARCH_SPACEMIT) += k1-bananapi-f3.dtb
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-milkv-jupiter.dtb
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-musepi-pro.dtb
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-orangepi-rv2.dtb
+dtb-$(CONFIG_ARCH_SPACEMIT) += k1-orangepi-r2s.dtb
diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
new file mode 100644
index 000000000000..58098c4a2aab
--- /dev/null
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2025 Michael Opdenacker <michael.opdenacker@rootcommit.com>
+ */
+
+/dts-v1/;
+
+#include "k1.dtsi"
+#include "k1-pinctrl.dtsi"
+
+/ {
+	model = "OrangePi R2S";
+	compatible = "xunlong,orangepi-r2s", "spacemit,k1";
+
+	aliases {
+		serial0 = &uart0;
+		ethernet0 = &eth0;
+		ethernet1 = &eth1;
+	};
+
+	chosen {
+		stdout-path = "serial0";
+	};
+};
+
+&emmc {
+	bus-width = <8>;
+	mmc-hs400-1_8v;
+	mmc-hs400-enhanced-strobe;
+	non-removable;
+	no-sd;
+	no-sdio;
+	status = "okay";
+};
+
+&eth0 {
+	phy-handle = <&rgmii0>;
+	phy-mode = "rgmii-id";
+	pinctrl-names = "default";
+	pinctrl-0 = <&gmac0_cfg>;
+	rx-internal-delay-ps = <0>;
+	tx-internal-delay-ps = <0>;
+	status = "okay";
+
+	mdio-bus {
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		reset-gpios = <&gpio K1_GPIO(110) GPIO_ACTIVE_LOW>;
+		reset-delay-us = <10000>;
+		reset-post-delay-us = <100000>;
+
+		rgmii0: phy@1 {
+			reg = <0x1>;
+		};
+	};
+};
+
+&eth1 {
+	phy-handle = <&rgmii1>;
+	phy-mode = "rgmii-id";
+	pinctrl-names = "default";
+	pinctrl-0 = <&gmac1_cfg>;
+	rx-internal-delay-ps = <0>;
+	tx-internal-delay-ps = <250>;
+	status = "okay";
+
+	mdio-bus {
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		reset-gpios = <&gpio K1_GPIO(115) GPIO_ACTIVE_LOW>;
+		reset-delay-us = <10000>;
+		reset-post-delay-us = <100000>;
+
+		rgmii1: phy@1 {
+			reg = <0x1>;
+		};
+	};
+};
+
+&pdma {
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_2_cfg>;
+	status = "okay";
+};

Re: [PATCH v4 1/2] dt-bindings: riscv: spacemit: Add OrangePi R2S board

[Yixun Lan]

Hi Michael,
  Thanks for the new iteration

Hi Krzysztof,
  Is this version addressed your concern? I would like to queue it for
v6.19, but let me know in case you still have objection..

On 04:44 Wed 12 Nov     , michael.opdenacker@rootcommit.com wrote:
> From: Michael Opdenacker <michael.opdenacker@rootcommit.com>
> 
> Document the compatible string for the OrangePi R2S board [1], which
> is marketed as using the Ky X1 SoC but is in fact identical in die
> and package to the SpacemiT K1 SoC [2].
> 
> Link: http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-R2S.html [1]
> Link: https://www.spacemit.com/en/key-stone-k1 [2]
> Signed-off-by: Michael Opdenacker <michael.opdenacker@rootcommit.com>
> ---
>  Documentation/devicetree/bindings/riscv/spacemit.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/riscv/spacemit.yaml b/Documentation/devicetree/bindings/riscv/spacemit.yaml
> index 52fe39296031..9c49482002f7 100644
> --- a/Documentation/devicetree/bindings/riscv/spacemit.yaml
> +++ b/Documentation/devicetree/bindings/riscv/spacemit.yaml
> @@ -23,6 +23,7 @@ properties:
>                - bananapi,bpi-f3
>                - milkv,jupiter
>                - spacemit,musepi-pro
> +              - xunlong,orangepi-r2s
>                - xunlong,orangepi-rv2
>            - const: spacemit,k1
>  
> 

-- 
Yixun Lan (dlan)

Re: [PATCH v4 1/2] dt-bindings: riscv: spacemit: Add OrangePi R2S board

[Krzysztof Kozlowski]

On Wed, Nov 12, 2025 at 04:44:40AM +0000, michael.opdenacker@rootcommit.com wrote:
> From: Michael Opdenacker <michael.opdenacker@rootcommit.com>
> 
> Document the compatible string for the OrangePi R2S board [1], which
> is marketed as using the Ky X1 SoC but is in fact identical in die
> and package to the SpacemiT K1 SoC [2].
> 
> Link: http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-R2S.html [1]
> Link: https://www.spacemit.com/en/key-stone-k1 [2]
> Signed-off-by: Michael Opdenacker <michael.opdenacker@rootcommit.com>

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof