[PATCH v3 0/2] riscv: dts: spacemit: Add initial support for OrangePi RV2

[PATCH v3 0/2] riscv: dts: spacemit: Add initial support for OrangePi RV2

[Hendrik Hamerlinck]

This patchset adds initial device tree support for the OrangePi RV2 board.

The OrangePi RV2 [1] is described as using the Ky X1 SoC. Based on research
and testing, it appears to be identical or very closely related to the
SpacemiT K1 SoC [2], as suggested by the following:

- Similar integration in the Banana Pi kernel tree [3], which uses the 
  OrangePi RV2 and identifies it as the SpacemiT K1.
- Comparison of the device tree code showing a match to the OrangePi RV2 
  Linux tree [4].
- Locally tested the OrangePi RV2 with the SpacemiT K1 device tree, 
  confirming it boots and operates correctly.

Patch #1 documents the compatible string for the OrangePi RV2, and 
patch #2 adds its minimal device tree. This enables booting to a serial
console with UART output and blinking a LED, similar to other K1-based 
boards such as the Banana Pi BPI-F3 or the Milk-V Jupiter.

Link: http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-RV2.html [1]
Link: https://www.spacemit.com/en/key-stone-k1 [2]
Link: https://github.com/BPI-SINOVOIP/pi-linux/blob/linux-6.6.63-k1/arch/riscv/boot/dts/spacemit/k1-x_orangepi-rv2.dts [3]
Link: https://github.com/orangepi-xunlong/linux-orangepi/tree/orange-pi-6.6-ky [4]

Changes in v3:
Improved changelog: Reworded relation to SpacemiT K1 as presumed identical,
based on downstream sources and testing.
Applied Yixun Lan's Reviewed-by tag.

Changes in v2:
Patch 1: no changes.
Patch 2:
- Added aliases section to the device tree.
- Removed the memory section, as it is populated by the bootloader.
- Updated copyright header.
Link: https://lore.kernel.org/spacemit/20250718084339.471449-3-hendrik.hamerlinck@hammernet.be/

Here is version 1 of this series:
  https://lore.kernel.org/spacemit/20250711183245.256683-1-hendrik.hamerlinck@hammernet.be/

This is the follow-up mentioned in the previous version, sent now that
v6.17-rc1 was released yesterday.

Hendrik Hamerlinck (2):
  dt-bindings: riscv: spacemit: Add OrangePi RV2 board
  riscv: dts: spacemit: Add OrangePi RV2 board device tree

 .../devicetree/bindings/riscv/spacemit.yaml   |  1 +
 arch/riscv/boot/dts/spacemit/Makefile         |  1 +
 .../boot/dts/spacemit/k1-orangepi-rv2.dts     | 40 +++++++++++++++++++
 3 files changed, 42 insertions(+)
 create mode 100644 arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts

-- 
2.43.0

[PATCH v3 1/2] dt-bindings: riscv: spacemit: Add OrangePi RV2 board

[Hendrik Hamerlinck]

Document the compatible string for the OrangePi RV2 board [1]. The board
is described as using the Ky X1 SoC, which, based on available downstream
sources and testing, appears to be identical or very closely related to
the SpacemiT K1 SoC [2].

Link: http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-RV2.html [1]
Link: https://www.spacemit.com/en/key-stone-k1 [2]
Signed-off-by: Hendrik Hamerlinck <hendrik.hamerlinck@hammernet.be>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
---
v3: Improved changelog
---
 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 077b94f10dca..c56b62a6299a 100644
--- a/Documentation/devicetree/bindings/riscv/spacemit.yaml
+++ b/Documentation/devicetree/bindings/riscv/spacemit.yaml
@@ -22,6 +22,7 @@ properties:
           - enum:
               - bananapi,bpi-f3
               - milkv,jupiter
+              - xunlong,orangepi-rv2
           - const: spacemit,k1
 
 additionalProperties: true
-- 
2.43.0

[PATCH v3 2/2] riscv: dts: spacemit: Add OrangePi RV2 board device tree

[Hendrik Hamerlinck]

Add initial device tree support for the OrangePi RV2 board [1]. The board
is described as using the Ky X1 SoC, which, based on available downstream
sources and testing, appears to be identical or very closely related to
the SpacemiT K1 SoC [2].

The device tree is adapted from the OrangePi vendor tree [3], and similar
integration can be found in the Banana Pi kernel tree [4], confirming SoC
compatibility. The main difference with the current Banana Pi BPI-F3 tree
is that status led is using GPIO_ACTIVE_LOW.

This minimal device tree enables booting into a serial console with UART
output and a blinking LED.

Link: http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-RV2.html [1]
Link: https://www.spacemit.com/en/key-stone-k1 [2]
Link: https://github.com/BPI-SINOVOIP/pi-linux/blob/linux-6.6.63-k1/arch/riscv/boot/dts/spacemit/k1-x_orangepi-rv2.dts [3]
Link: https://github.com/orangepi-xunlong/linux-orangepi/tree/orange-pi-6.6-ky [4]
Signed-off-by: Hendrik Hamerlinck <hendrik.hamerlinck@hammernet.be>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
---
Changes since v2: improved changelog
---
 arch/riscv/boot/dts/spacemit/Makefile         |  1 +
 .../boot/dts/spacemit/k1-orangepi-rv2.dts     | 40 +++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts

diff --git a/arch/riscv/boot/dts/spacemit/Makefile b/arch/riscv/boot/dts/spacemit/Makefile
index 92e13ce1c16d..152832644870 100644
--- a/arch/riscv/boot/dts/spacemit/Makefile
+++ b/arch/riscv/boot/dts/spacemit/Makefile
@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-bananapi-f3.dtb
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-milkv-jupiter.dtb
+dtb-$(CONFIG_ARCH_SPACEMIT) += k1-orangepi-rv2.dtb
diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
new file mode 100644
index 000000000000..337240ebb7b7
--- /dev/null
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-rv2.dts
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2024 Yangyu Chen <cyy@cyyself.name>
+ * Copyright (C) 2025 Hendrik Hamerlinck <hendrik.hamerlinck@hammernet.be>
+ */
+
+/dts-v1/;
+
+#include "k1.dtsi"
+#include "k1-pinctrl.dtsi"
+
+/ {
+	model = "OrangePi RV2";
+	compatible = "xunlong,orangepi-rv2", "spacemit,k1";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led1 {
+			label = "sys-led";
+			gpios = <&gpio K1_GPIO(96) GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+			default-state = "on";
+		};
+	};
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_2_cfg>;
+	status = "okay";
+};
-- 
2.43.0

Re: [PATCH v3 0/2] riscv: dts: spacemit: Add initial support for OrangePi RV2

[Yixun Lan]

On Wed, 13 Aug 2025 11:22:38 +0200, Hendrik Hamerlinck wrote:
> This patchset adds initial device tree support for the OrangePi RV2 board.
> 
> The OrangePi RV2 [1] is described as using the Ky X1 SoC. Based on research
> and testing, it appears to be identical or very closely related to the
> SpacemiT K1 SoC [2], as suggested by the following:
> 
> - Similar integration in the Banana Pi kernel tree [3], which uses the
>   OrangePi RV2 and identifies it as the SpacemiT K1.
> - Comparison of the device tree code showing a match to the OrangePi RV2
>   Linux tree [4].
> - Locally tested the OrangePi RV2 with the SpacemiT K1 device tree,
>   confirming it boots and operates correctly.
> 
> [...]

Applied, thanks!

[1/2] dt-bindings: riscv: spacemit: Add OrangePi RV2 board
      https://github.com/spacemit-com/linux/commit/f10512e2c44e6ee3242314d43102acab7340e2d3
[2/2] riscv: dts: spacemit: Add OrangePi RV2 board device tree
      https://github.com/spacemit-com/linux/commit/bab8dea259100a99e047fd11a48940b229d30031

Best regards,
-- 
Yixun Lan