Messages in this thread |  | | From | Ender Hsieh <> | | Subject | [PATCH 0/1] aspeed: msx4: enable BMC networking via MAC0 | | Date | Tue, 5 May 2026 14:05:40 +0900 |
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Add the &mac0/&mdio3/ethphy3 nodes to the NVIDIA MSX4 board dts to enable BMC networking. These nodes were intentionally omitted in commit f28674fab34f ("ARM: dts: aspeed: Add NVIDIA MSX4 HPM") at Andrew Lunn's request, pending RGMII delay handling clarification.
Following his guidance on linux-aspeed [1], the U-Boot bootloader has been modified to stop enabling MAC clock delays on the SoC side. With phy-mode = "rgmii-id", the PHY now adds the required ~2ns delay without any double-delay from the MAC controller.
Tested on alon8 hardware: 1G link negotiation succeeds with this change in coordination with the U-Boot patch [2].
[1] https://patch.msgid.link/eac09481-0ba1-4ac2-ad8c-d859822ff0d5@lunn.ch [2] https://patch.msgid.link/20260504044702.2613879-1-andhsieh@nvidia.com
Ender Hsieh (1): ARM: dts: aspeed: msx4: enable BMC networking via MAC0
.../dts/aspeed/aspeed-bmc-nvidia-msx4-bmc.dts | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
-- 2.34.1
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