Document the compatible string for the MusePi Pro [1]. It is a 1.8-inch
single board computer based on the SpacemiT K1/M1 RISC-V SoC [2].

Here's a refined list of its core features for consideration:
  - SoC: SpacemiT M1/K1, 8-core 64-bit RISC-V with 2.0 TOPS AI power.
         This suggests potential for light AI/ML workloads on-device.
  - Memory: LPDDR4X @ 2400MT/s, available in 8GB & 16GB options.
            Sufficient for various workloads.
  - Storage: Onboard eMMC 5.1 (64GB/128GB options). M.2 M-Key for NVMe
             SSD (2230 size), and a microSD slot (UHS-II) for expansion.
             Good variety for boot and data.
  - Display: HDMI 1.4 (1080P@60Hz) and 2-lane MIPI DSI FPC (1080P@60Hz).
             Standard display options.
  - Connectivity: Onboard Wi-Fi 6 & Bluetooth 5.2. A single Gigabit
                  Ethernet port (RJ45). Given the stated markets,
                  this should cover basic networking.
  - USB: 4x USB 3.0 Type-A (host) and 1x USB 2.0 Type-C (device/OTG).
         Decent host capabilities.
  - Expansion: Full-size miniPCIe slot for assorted modules
               (4G/5G, wireless etc.). A second M.2 M-Key (2230) for more
               general PCIe devices (SSD, PCIe-to-SATA, comm boards).
  - GPIO: Standard 40-pin GPIO interface, as expected for an SBC.
  - MIPI: Includes 1x 4-lane MIPI CSI FPC and 2x MIPI DSI FPC interfaces
          for cameras and displays.
  - Clock: Onboard RTC with battery support.

Link: https://developer.spacemit.com/documentation?token=YJtdwnvvViPVcmkoPDpcvwfVnrh&type=pdf [1]
Link: https://www.spacemit.com/en/key-stone-k1 [2]

Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
---
Changelog in v2:
- modify commit message
- Link to v1: https://lore.kernel.org/all/20250928-k1-musepi-pro-dts-v1-1-5efcca0ce3ae@linux.spacemit.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 c56b62a6299ac24d3cdef7edcdfc407dc62a1846..52fe39296031f21d1c28c4f1ea5ca9fe28caf45a 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
+              - spacemit,musepi-pro
               - xunlong,orangepi-rv2
           - const: spacemit,k1
 

-- 
2.51.0

On Fri, Oct 10, 2025 at 09:56:30AM +0800, Troy Mitchell wrote:
> Document the compatible string for the MusePi Pro [1]. It is a 1.8-inch
> single board computer based on the SpacemiT K1/M1 RISC-V SoC [2].
> 
> Here's a refined list of its core features for consideration:
>   - SoC: SpacemiT M1/K1, 8-core 64-bit RISC-V with 2.0 TOPS AI power.
>          This suggests potential for light AI/ML workloads on-device.
>   - Memory: LPDDR4X @ 2400MT/s, available in 8GB & 16GB options.
>             Sufficient for various workloads.
>   - Storage: Onboard eMMC 5.1 (64GB/128GB options). M.2 M-Key for NVMe
>              SSD (2230 size), and a microSD slot (UHS-II) for expansion.
>              Good variety for boot and data.
>   - Display: HDMI 1.4 (1080P@60Hz) and 2-lane MIPI DSI FPC (1080P@60Hz).
>              Standard display options.
>   - Connectivity: Onboard Wi-Fi 6 & Bluetooth 5.2. A single Gigabit
>                   Ethernet port (RJ45). Given the stated markets,
>                   this should cover basic networking.
>   - USB: 4x USB 3.0 Type-A (host) and 1x USB 2.0 Type-C (device/OTG).
>          Decent host capabilities.
>   - Expansion: Full-size miniPCIe slot for assorted modules
>                (4G/5G, wireless etc.). A second M.2 M-Key (2230) for more
>                general PCIe devices (SSD, PCIe-to-SATA, comm boards).
>   - GPIO: Standard 40-pin GPIO interface, as expected for an SBC.
>   - MIPI: Includes 1x 4-lane MIPI CSI FPC and 2x MIPI DSI FPC interfaces
>           for cameras and displays.
>   - Clock: Onboard RTC with battery support.
> 
> Link: https://developer.spacemit.com/documentation?token=YJtdwnvvViPVcmkoPDpcvwfVnrh&type=pdf [1]
> Link: https://www.spacemit.com/en/key-stone-k1 [2]
> 
> Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>

Acked-by: Conor Dooley <conor.dooley@microchip.com>

pw-bot: not-applicable

> ---
> Changelog in v2:
> - modify commit message
> - Link to v1: https://lore.kernel.org/all/20250928-k1-musepi-pro-dts-v1-1-5efcca0ce3ae@linux.spacemit.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 c56b62a6299ac24d3cdef7edcdfc407dc62a1846..52fe39296031f21d1c28c4f1ea5ca9fe28caf45a 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
> +              - spacemit,musepi-pro
>                - xunlong,orangepi-rv2
>            - const: spacemit,k1
>  
> 
> -- 
> 2.51.0
> 
>