[PATCH v3 0/2] Add device tree for Nvidia BMC msx4 cx8 switchboard

[Rob Herring (Arm)]

On Sat, 08 Nov 2025 14:24:33 -0800, Marc Olberding wrote:
> Patch 1 Adds the binding for the msx4 cx8 switchboard
> Patch 2 Adds the device tree for the msx4 cx8 switchboard reference implementation.
> 
> This is an Aspeed AST2600 based reference implementation for a BMC
> managing the nvidia mgx cx8 switchboard.
> 
> Reference to Ast2600 Soc [1].
> 
> Link: https://www.aspeedtech.com/server_ast2600/ [1]
> 
> Signed-off-by: Marc Olberding <molberding at nvidia.com>
> ---
> Changes in v3:
> - Removed mac and mdio node completely per Andrew Lunn's request. Will add back
>     once the mac driver is fixed
> - Link to v2: https://lore.kernel.org/r/20251107-msx1_devicetree-v2-0-6e36eb878db2@nvidia.com
> 
> Changes in v2:
> - Added ack by Conor Dooley on patch 1
> - Changed phy-mode attribute after discussion with Andrew Jeffery and feedback from Andrew Lunn
>     and added a comment with a better explanation
> - Link to v1: https://lore.kernel.org/r/20250918-msx1_devicetree-v1-1-18dc07e02118@nvidia.com
> 
> ---
> Marc Olberding (2):
>       dt-bindings: arm: aspeed: Add Nvidia msx4 board
>       dts: aspeed: Add a dts for the nvidia msx4 hpm
> 
>  .../devicetree/bindings/arm/aspeed/aspeed.yaml     |   1 +
>  arch/arm/boot/dts/aspeed/Makefile                  |   1 +
>  .../boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dts | 235 +++++++++++++++++++++
>  3 files changed, 237 insertions(+)
> ---
> base-commit: 38a2c275c3d3f7d7180d012386cd6fcf87854400
> change-id: 20250908-msx1_devicetree-7af2c1fc15d0
> 
> Best regards,
> --
> Marc Olberding <molberding at nvidia.com>
> 
> 
> 


My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade


This patch series was applied (using b4) to base:
 Base: 38a2c275c3d3f7d7180d012386cd6fcf87854400 (use --merge-base to override)

If this is not the correct base, please add 'base-commit' tag
(or use b4 which does this automatically)

New warnings running 'make CHECK_DTBS=y for arch/arm/boot/dts/aspeed/' for 20251108-msx1_devicetree-v3-0-c7cb477ade27 at nvidia.com:

arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: timer (arm,armv7-timer): 'clocks' does not match any of the regexes: '^pinctrl-[0-9]+$'
	from schema $id: http://devicetree.org/schemas/timer/arm,arch_timer.yaml
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: sdram at 1e6e0000 (aspeed,ast2600-sdram-edac): compatible: ['aspeed,ast2600-sdram-edac', 'syscon'] is too long
	from schema $id: http://devicetree.org/schemas/edac/aspeed,ast2400-sdram-edac.yaml
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: bus at 1e600000 (aspeed,ast2600-ahbc): compatible: ['aspeed,ast2600-ahbc', 'syscon'] is too long
	from schema $id: http://devicetree.org/schemas/bus/aspeed,ast2600-ahbc.yaml
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: syscon at 1e6e2000 (aspeed,ast2600-scu): 'smp-memram at 180' does not match any of the regexes: '^interrupt-controller@[0-9a-f]+$', '^p2a-control@[0-9a-f]+$', '^pinctrl(@[0-9a-f]+)?$', '^pinctrl-[0-9]+$', '^silicon-id@[0-9a-f]+$'
	from schema $id: http://devicetree.org/schemas/mfd/aspeed,ast2x00-scu.yaml
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: /ahb/apb/syscon at 1e6e2000/smp-memram at 180: failed to match any schema with compatible: ['aspeed,ast2600-smpmem']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: adc at 1e6e9000 (aspeed,ast2600-adc0): 'interrupts' does not match any of the regexes: '^pinctrl-[0-9]+$'
	from schema $id: http://devicetree.org/schemas/iio/adc/aspeed,ast2600-adc.yaml
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: adc at 1e6e9100 (aspeed,ast2600-adc1): 'interrupts' does not match any of the regexes: '^pinctrl-[0-9]+$'
	from schema $id: http://devicetree.org/schemas/iio/adc/aspeed,ast2600-adc.yaml
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: crypto at 1e6fa000 (aspeed,ast2600-acry): 'aspeed,ahbc' does not match any of the regexes: '^pinctrl-[0-9]+$'
	from schema $id: http://devicetree.org/schemas/crypto/aspeed,ast2600-acry.yaml
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: /ahb/apb/lpc at 1e789000/lhc at a0: failed to match any schema with compatible: ['aspeed,ast2600-lhc']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: /ahb/apb/lpc at 1e789000/ibt at 140: failed to match any schema with compatible: ['aspeed,ast2600-ibt-bmc']
arch/arm/boot/dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dtb: /ahb/apb/dma-controller at 1e79e000: failed to match any schema with compatible: ['aspeed,ast2600-udma']