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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 --- Changes in v4: - Changed model name to be accurate per Andrew Jeffery - Added comments about why there are no i2c devices described here per Andrew Jeffery - Added support for probing the backup spi device through fmc - Link to v3: https://lore.kernel.org/r/20251108-msx1_devicetree-v3-0-c7cb477ade27@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 | 248 +++++++++++++++++++++ 3 files changed, 250 insertions(+) --- base-commit: ac3fd01e4c1efce8f2c054cdeb2ddd2fc0fb150d change-id: 20250908-msx1_devicetree-7af2c1fc15d0 Best regards, -- Marc Olberding