[PATCH v2 0/5] riscv: dts: spacemit: add initial support for MusePi Pro

[PATCH v2 0/5] riscv: dts: spacemit: add initial support for MusePi Pro

[Troy Mitchell]

This patchset adds initial device tree support for the MusePi Pro board.

Muse Pi Pro [1] is a single-board computer integrating a high-performance
RISC-V 8-core processor, storage, I/O and expansion capabilities into
a credit card-sized 1.8-inch board.

Link:
https://developer.spacemit.com/documentation?token=YJtdwnvvViPVcmkoPDpcvwfVnrh&type=pdf
[1]

Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
---
Troy Mitchell (5):
      dt-bindings: riscv: spacemit: add MusePi Pro board
      riscv: dts: spacemit: add MusePi Pro board device tree
      riscv: dts: spacemit: enable PDMA on MusePi Pro
      riscv: dts: spacemit: enable eMMC on MusePi Pro
      riscv: dts: spacemit: add Ethernet support for MusePi Pro

 .../devicetree/bindings/riscv/spacemit.yaml        |  1 +
 arch/riscv/boot/dts/spacemit/Makefile              |  1 +
 arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts     | 77 ++++++++++++++++++++++
 3 files changed, 79 insertions(+)
---
base-commit: 93e3e1281b369a386a4942bb50111def06902e1f
change-id: 20250928-k1-musepi-pro-dts-546d20c442ab

Best regards,
-- 
Troy Mitchell <troy.mitchell@linux.spacemit.com>


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[PATCH v2 1/5] dt-bindings: riscv: spacemit: add MusePi Pro board

[Troy Mitchell]

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


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[PATCH v2 2/5] riscv: dts: spacemit: add MusePi Pro board device tree

[Troy Mitchell]

Add initial device tree support for the MusePi Pro board [1].
The board is using the SpacemiT K1/M1 SoC.

The device tree is adapted from the SpacemiT vendor tree [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.

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

Link: https://developer.spacemit.com/documentation?token=YJtdwnvvViPVcmkoPDpcvwfVnrh&type=pdf [1]
Link: https://gitee.com/bianbu-linux/linux-6.6/blob/k1-bl-v2.2.y/arch/riscv/boot/dts/spacemit/k1-x_MUSE-Pi-Pro.dts [2]

Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
---
Changelog in v2:
- modify commit message
- swap pinctrl-names and pinctrl-0 properties in uart0 node
- rename model: "MusePi Pro" -> "SpacemiT MusePi Pro"
- keep the dtb-$(CONFIG_ARCH_SPACEMIT) entries in alphabetical order
- Link to v1: https://lore.kernel.org/all/20250928-k1-musepi-pro-dts-v1-2-5efcca0ce3ae@linux.spacemit.com/
---
 arch/riscv/boot/dts/spacemit/Makefile          |  1 +
 arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 40 ++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/Makefile b/arch/riscv/boot/dts/spacemit/Makefile
index 152832644870624d8fd77684ef33addb42b0baf3..942ecb38bea034ef5fbf2cef74e682ee0b6ad8f4 100644
--- a/arch/riscv/boot/dts/spacemit/Makefile
+++ b/arch/riscv/boot/dts/spacemit/Makefile
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-bananapi-f3.dtb
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-milkv-jupiter.dtb
+dtb-$(CONFIG_ARCH_SPACEMIT) += k1-musepi-pro.dtb
 dtb-$(CONFIG_ARCH_SPACEMIT) += k1-orangepi-rv2.dtb
diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
new file mode 100644
index 0000000000000000000000000000000000000000..49c41ce785cded31c9937d8244d9bc99dcd1e1da
--- /dev/null
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2024 Yangyu Chen <cyy@cyyself.name>
+ * Copyright (C) 2025 Troy Mitchell <troy.mitchell@linux.spacemit.com>
+ */
+
+/dts-v1/;
+
+#include "k1.dtsi"
+#include "k1-pinctrl.dtsi"
+
+/ {
+	model = "SpacemiT MusePi Pro";
+	compatible = "spacemit,musepi-pro", "spacemit,k1";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led1 {
+			label = "sys-led";
+			gpios = <&gpio K1_GPIO(96) GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+			default-state = "on";
+		};
+	};
+};
+
+&uart0 {
+	pinctrl-0 = <&uart0_2_cfg>;
+	pinctrl-names = "default";
+	status = "okay";
+};

-- 
2.51.0


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[PATCH v2 3/5] riscv: dts: spacemit: enable PDMA on MusePi Pro

[Troy Mitchell]

Enable the PDMA on the SpacemiT K1-based MusePi Pro board
by setting its status to "okay".

Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
---
 arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 49c41ce785cded31c9937d8244d9bc99dcd1e1da..7ca3375910a3da8eaeaf1a7d5398616d928aa875 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -33,6 +33,10 @@ led1 {
 	};
 };
 
+&pdma {
+	status = "okay";
+};
+
 &uart0 {
 	pinctrl-0 = <&uart0_2_cfg>;
 	pinctrl-names = "default";

-- 
2.51.0


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[PATCH v2 4/5] riscv: dts: spacemit: enable eMMC on MusePi Pro

[Troy Mitchell]

Enable the on-board eMMC for MusePi Pro with 8-bit bus and HS400 mode.

Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
---
 arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 7ca3375910a3da8eaeaf1a7d5398616d928aa875..89a35914710bfd15c6ad27cd8d0de7ccf62e2309 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -33,6 +33,16 @@ led1 {
 	};
 };
 
+&emmc {
+	bus-width = <8>;
+	mmc-hs400-1_8v;
+	mmc-hs400-enhanced-strobe;
+	non-removable;
+	no-sd;
+	no-sdio;
+	status = "okay";
+};
+
 &pdma {
 	status = "okay";
 };

-- 
2.51.0


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[PATCH v2 5/5] riscv: dts: spacemit: add Ethernet support for MusePi Pro

[Troy Mitchell]

MusePi Pro features a single RGMII Ethernet port with
PHY reset controlled by GPIO.

Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
---
 arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 89a35914710bfd15c6ad27cd8d0de7ccf62e2309..e9a53dc7a417117c82f3e467677290bdaeffc845 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -47,6 +47,29 @@ &pdma {
 	status = "okay";
 };
 
+&eth0 {
+	phy-handle = <&rgmii0>;
+	phy-mode = "rgmii-id";
+	pinctrl-0 = <&gmac0_cfg>;
+	pinctrl-names = "default";
+	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>;
+		};
+	};
+};
+
 &uart0 {
 	pinctrl-0 = <&uart0_2_cfg>;
 	pinctrl-names = "default";

-- 
2.51.0



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Re: [PATCH v2 5/5] riscv: dts: spacemit: add Ethernet support for MusePi Pro

[Vivian Wang]

On 10/10/25 09:56, Troy Mitchell wrote:
> MusePi Pro features a single RGMII Ethernet port with
> PHY reset controlled by GPIO.
>
> Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
> ---
>  arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
>
> diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> index 89a35914710bfd15c6ad27cd8d0de7ccf62e2309..e9a53dc7a417117c82f3e467677290bdaeffc845 100644
> --- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> +++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> @@ -47,6 +47,29 @@ &pdma {
>  	status = "okay";
>  };
>  
> +&eth0 {

For node orders in board DTS for SpacemiT devices, usually we follow
node name order because there's no unit address to go off of here, so
for what we have here it should be emmc, eth0, pdma, uart.

See e.g. arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts and previous
discussion [1].

Also, personally I think it would be fine to just add the whole
k1-musepi-pro.dts in the same patch instead of splitting it up like
this. I feel it would be easier to manage this way. For previous devices
these nodes have been added piecemeal mostly because the drivers were
being developed in parallel, but if you're going to base this on
v6.18-rc1 there shouldn't be dependency problems.

Maybe Yixun can chime in about this as well.

Thanks,
Vivian "dramforever" Wang

[1]: https://lore.kernel.org/linux-riscv/CAH1PCMa35n4dnJ94-EHGrJyU3kztQYO8_v2CkD=rid466zv3+A@mail.gmail.com


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Re: [PATCH v2 5/5] riscv: dts: spacemit: add Ethernet support for MusePi Pro

[Troy Mitchell]

On Fri, Oct 10, 2025 at 02:13:31PM +0800, Vivian Wang wrote:
> 
> On 10/10/25 09:56, Troy Mitchell wrote:
> > MusePi Pro features a single RGMII Ethernet port with
> > PHY reset controlled by GPIO.
> >
> > Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
> > ---
> >  arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 23 +++++++++++++++++++++++
> >  1 file changed, 23 insertions(+)
> >
> > diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> > index 89a35914710bfd15c6ad27cd8d0de7ccf62e2309..e9a53dc7a417117c82f3e467677290bdaeffc845 100644
> > --- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> > +++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> > @@ -47,6 +47,29 @@ &pdma {
> >  	status = "okay";
> >  };
> >  
> > +&eth0 {
> 
> For node orders in board DTS for SpacemiT devices, usually we follow
> node name order because there's no unit address to go off of here, so
> for what we have here it should be emmc, eth0, pdma, uart.
> 
> See e.g. arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts and previous
> discussion [1].
Thanks for you point out!

> 
> Also, personally I think it would be fine to just add the whole
> k1-musepi-pro.dts in the same patch instead of splitting it up like
> this. I feel it would be easier to manage this way. For previous devices
> these nodes have been added piecemeal mostly because the drivers were
> being developed in parallel, but if you're going to base this on
> v6.18-rc1 there shouldn't be dependency problems.
> 
> Maybe Yixun can chime in about this as well.
We have talked here [1]

Personally, I think splitting them makes the commit history clearer.
I'm happy to merge them if others also think it's more appropriate.

Link: https://lore.kernel.org/linux-riscv/35C0EFBB84167959+aNj6K33fl7utuqcf@kernel.org/ [1]

                          - Troy
> 
> Thanks,
> Vivian "dramforever" Wang
> 
> [1]: https://lore.kernel.org/linux-riscv/CAH1PCMa35n4dnJ94-EHGrJyU3kztQYO8_v2CkD=rid466zv3+A@mail.gmail.com
> 
> 

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Re: [PATCH v2 5/5] riscv: dts: spacemit: add Ethernet support for MusePi Pro

[Vivian Wang]

On 10/10/25 14:13, Vivian Wang wrote:
> On 10/10/25 09:56, Troy Mitchell wrote:
>> MusePi Pro features a single RGMII Ethernet port with
>> PHY reset controlled by GPIO.
>>
>> Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
>> ---
>>  arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 23 +++++++++++++++++++++++
>>  1 file changed, 23 insertions(+)
>>
>> diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
>> index 89a35914710bfd15c6ad27cd8d0de7ccf62e2309..e9a53dc7a417117c82f3e467677290bdaeffc845 100644
>> --- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
>> +++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
>> @@ -47,6 +47,29 @@ &pdma {
>>  	status = "okay";
>>  };
>>  
>> +&eth0 {
> For node orders in board DTS for SpacemiT devices, usually we follow
> node name order because there's no unit address to go off of here, so
> for what we have here it should be emmc, eth0, pdma, uart.
>
> See e.g. arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts and previous
> discussion [1].
>
> Also, personally I think it would be fine to just add the whole
> k1-musepi-pro.dts in the same patch instead of splitting it up like
> this. I feel it would be easier to manage this way. For previous devices
> these nodes have been added piecemeal mostly because the drivers were
> being developed in parallel, but if you're going to base this on
> v6.18-rc1 there shouldn't be dependency problems.
... and also almost missed: this should have an ethernet0 alias. In the
most common boot flow it's read by U-Boot to set mac-address so that
both U-Boot and Linux use the same MAC address. This allows U-Boot to a
persistent MAC address rather than having to use a random one.  
> Maybe Yixun can chime in about this as well.
>
> Thanks,
> Vivian "dramforever" Wang
>
> [1]: https://lore.kernel.org/linux-riscv/CAH1PCMa35n4dnJ94-EHGrJyU3kztQYO8_v2CkD=rid466zv3+A@mail.gmail.com
>


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Re: [PATCH v2 5/5] riscv: dts: spacemit: add Ethernet support for MusePi Pro

[Troy Mitchell]

On Fri, Oct 10, 2025 at 02:20:50PM +0800, Vivian Wang wrote:
> 
> On 10/10/25 14:13, Vivian Wang wrote:
> > On 10/10/25 09:56, Troy Mitchell wrote:
> >> MusePi Pro features a single RGMII Ethernet port with
> >> PHY reset controlled by GPIO.
> >>
> >> Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
> >> ---
> >>  arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 23 +++++++++++++++++++++++
> >>  1 file changed, 23 insertions(+)
> >>
> >> diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> >> index 89a35914710bfd15c6ad27cd8d0de7ccf62e2309..e9a53dc7a417117c82f3e467677290bdaeffc845 100644
> >> --- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> >> +++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> >> @@ -47,6 +47,29 @@ &pdma {
> >>  	status = "okay";
> >>  };
> >>  
> >> +&eth0 {
> > For node orders in board DTS for SpacemiT devices, usually we follow
> > node name order because there's no unit address to go off of here, so
> > for what we have here it should be emmc, eth0, pdma, uart.
> >
> > See e.g. arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts and previous
> > discussion [1].
> >
> > Also, personally I think it would be fine to just add the whole
> > k1-musepi-pro.dts in the same patch instead of splitting it up like
> > this. I feel it would be easier to manage this way. For previous devices
> > these nodes have been added piecemeal mostly because the drivers were
> > being developed in parallel, but if you're going to base this on
> > v6.18-rc1 there shouldn't be dependency problems.
> ... and also almost missed: this should have an ethernet0 alias. In the
> most common boot flow it's read by U-Boot to set mac-address so that
> both U-Boot and Linux use the same MAC address. This allows U-Boot to a
> persistent MAC address rather than having to use a random one.  
Yes, I forgot to add that.. I'll add it in the next version.

Thanks!

                    - Troy
> > Maybe Yixun can chime in about this as well.
> >
> > Thanks,
> > Vivian "dramforever" Wang
> >
> > [1]: https://lore.kernel.org/linux-riscv/CAH1PCMa35n4dnJ94-EHGrJyU3kztQYO8_v2CkD=rid466zv3+A@mail.gmail.com
> >
> 
> 

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Re: [PATCH v2 5/5] riscv: dts: spacemit: add Ethernet support for MusePi Pro

[Yixun Lan]

Hi Troy, Vivian:

On 14:20 Fri 10 Oct     , Troy Mitchell wrote:
> On Fri, Oct 10, 2025 at 02:13:31PM +0800, Vivian Wang wrote:
> > 
[snip]..
> > 
> > Maybe Yixun can chime in about this as well.
> We have talked here [1]
> 
> Personally, I think splitting them makes the commit history clearer.
> I'm happy to merge them if others also think it's more appropriate.
> 
I do not have strong preference, either way is fine for me
If you plan to split the DT into fine patches, then go ahead

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Re: [PATCH v2 5/5] riscv: dts: spacemit: add Ethernet support for MusePi Pro

[Troy Mitchell]

On Fri, Oct 10, 2025 at 02:43:10PM +0800, Yixun Lan wrote:
> Hi Troy, Vivian:
> 
> On 14:20 Fri 10 Oct     , Troy Mitchell wrote:
> > On Fri, Oct 10, 2025 at 02:13:31PM +0800, Vivian Wang wrote:
> > > 
> [snip]..
> > > 
> > > Maybe Yixun can chime in about this as well.
> > We have talked here [1]
> > 
> > Personally, I think splitting them makes the commit history clearer.
> > I'm happy to merge them if others also think it's more appropriate.
> > 
> I do not have strong preference, either way is fine for me
> If you plan to split the DT into fine patches, then go ahead
Thank you for your reconfirmation

                    - Troy
> 
> -- 
> Yixun Lan (dlan)
> 

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Re: [PATCH v2 1/5] dt-bindings: riscv: spacemit: add MusePi Pro board

[Conor Dooley]

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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
> 
> 

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Re: [PATCH v2 5/5] riscv: dts: spacemit: add Ethernet support for MusePi Pro

[Conor Dooley]

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On Fri, Oct 10, 2025 at 02:20:12PM +0800, Troy Mitchell wrote:
> On Fri, Oct 10, 2025 at 02:13:31PM +0800, Vivian Wang wrote:
> > 
> > On 10/10/25 09:56, Troy Mitchell wrote:
> > > MusePi Pro features a single RGMII Ethernet port with
> > > PHY reset controlled by GPIO.
> > >
> > > Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
> > > ---
> > >  arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 23 +++++++++++++++++++++++
> > >  1 file changed, 23 insertions(+)
> > >
> > > diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> > > index 89a35914710bfd15c6ad27cd8d0de7ccf62e2309..e9a53dc7a417117c82f3e467677290bdaeffc845 100644
> > > --- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> > > +++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
> > > @@ -47,6 +47,29 @@ &pdma {
> > >  	status = "okay";
> > >  };
> > >  
> > > +&eth0 {
> > 
> > For node orders in board DTS for SpacemiT devices, usually we follow
> > node name order because there's no unit address to go off of here, so
> > for what we have here it should be emmc, eth0, pdma, uart.
> > 
> > See e.g. arch/riscv/boot/dts/spacemit/k1-bananapi-f3.dts and previous
> > discussion [1].
> Thanks for you point out!
> 
> > 
> > Also, personally I think it would be fine to just add the whole
> > k1-musepi-pro.dts in the same patch instead of splitting it up like
> > this. I feel it would be easier to manage this way. For previous devices
> > these nodes have been added piecemeal mostly because the drivers were
> > being developed in parallel, but if you're going to base this on
> > v6.18-rc1 there shouldn't be dependency problems.
> > 
> > Maybe Yixun can chime in about this as well.
> We have talked here [1]
> 
> Personally, I think splitting them makes the commit history clearer.
> I'm happy to merge them if others also think it's more appropriate.

tbh, I don't think it makes much sense to add it piecemeal, you'd then
end up potentially with dozens of commits for new platforms later in the
life of the SoC.
When you're adding new boards, add them in as complete as possible a
state from the beginning.

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Re: [PATCH v2 5/5] riscv: dts: spacemit: add Ethernet support for MusePi Pro

[Yixun Lan]

Hi Troy,

On 14:43 Fri 10 Oct     , Yixun Lan wrote:
> Hi Troy, Vivian:
> 
> On 14:20 Fri 10 Oct     , Troy Mitchell wrote:
> > On Fri, Oct 10, 2025 at 02:13:31PM +0800, Vivian Wang wrote:
> > > 
> [snip]..
> > > 
> > > Maybe Yixun can chime in about this as well.
> > We have talked here [1]
> > 
> > Personally, I think splitting them makes the commit history clearer.
> > I'm happy to merge them if others also think it's more appropriate.
> > 
> I do not have strong preference, either way is fine for me
> If you plan to split the DT into fine patches, then go ahead
please squash the patches, see Conor's suggestion here:
https://lore.kernel.org/all/20251010-confider-raven-0ad7a810e5de@spud/

Also, I'd plan to collect patches once v6.18-rc1 tagged, you can wait
and do it after that..

-- 
Yixun Lan (dlan)

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